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@@ -1,1815 +1,1820 b'' | |||||
1 | """ An abstract base class for console-type widgets. |
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1 | """ An abstract base class for console-type widgets. | |
2 | """ |
|
2 | """ | |
3 | #----------------------------------------------------------------------------- |
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3 | #----------------------------------------------------------------------------- | |
4 | # Imports |
|
4 | # Imports | |
5 | #----------------------------------------------------------------------------- |
|
5 | #----------------------------------------------------------------------------- | |
6 |
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6 | |||
7 | # Standard library imports |
|
7 | # Standard library imports | |
8 | import os |
|
8 | import os | |
9 | from os.path import commonprefix |
|
9 | from os.path import commonprefix | |
10 | import re |
|
10 | import re | |
11 | import sys |
|
11 | import sys | |
12 | from textwrap import dedent |
|
12 | from textwrap import dedent | |
13 | from unicodedata import category |
|
13 | from unicodedata import category | |
14 |
|
14 | |||
15 | # System library imports |
|
15 | # System library imports | |
16 | from IPython.external.qt import QtCore, QtGui |
|
16 | from IPython.external.qt import QtCore, QtGui | |
17 |
|
17 | |||
18 | # Local imports |
|
18 | # Local imports | |
19 | from IPython.config.configurable import LoggingConfigurable |
|
19 | from IPython.config.configurable import LoggingConfigurable | |
20 | from IPython.frontend.qt.rich_text import HtmlExporter |
|
20 | from IPython.frontend.qt.rich_text import HtmlExporter | |
21 | from IPython.frontend.qt.util import MetaQObjectHasTraits, get_font |
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21 | from IPython.frontend.qt.util import MetaQObjectHasTraits, get_font | |
22 | from IPython.utils.text import columnize |
|
22 | from IPython.utils.text import columnize | |
23 | from IPython.utils.traitlets import Bool, Enum, Integer, Unicode |
|
23 | from IPython.utils.traitlets import Bool, Enum, Integer, Unicode | |
24 | from ansi_code_processor import QtAnsiCodeProcessor |
|
24 | from ansi_code_processor import QtAnsiCodeProcessor | |
25 | from completion_widget import CompletionWidget |
|
25 | from completion_widget import CompletionWidget | |
26 | from kill_ring import QtKillRing |
|
26 | from kill_ring import QtKillRing | |
27 |
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27 | |||
28 | #----------------------------------------------------------------------------- |
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28 | #----------------------------------------------------------------------------- | |
29 | # Functions |
|
29 | # Functions | |
30 | #----------------------------------------------------------------------------- |
|
30 | #----------------------------------------------------------------------------- | |
31 |
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31 | |||
32 | def is_letter_or_number(char): |
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32 | def is_letter_or_number(char): | |
33 | """ Returns whether the specified unicode character is a letter or a number. |
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33 | """ Returns whether the specified unicode character is a letter or a number. | |
34 | """ |
|
34 | """ | |
35 | cat = category(char) |
|
35 | cat = category(char) | |
36 | return cat.startswith('L') or cat.startswith('N') |
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36 | return cat.startswith('L') or cat.startswith('N') | |
37 |
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37 | |||
38 | #----------------------------------------------------------------------------- |
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38 | #----------------------------------------------------------------------------- | |
39 | # Classes |
|
39 | # Classes | |
40 | #----------------------------------------------------------------------------- |
|
40 | #----------------------------------------------------------------------------- | |
41 |
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41 | |||
42 | class ConsoleWidget(LoggingConfigurable, QtGui.QWidget): |
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42 | class ConsoleWidget(LoggingConfigurable, QtGui.QWidget): | |
43 | """ An abstract base class for console-type widgets. This class has |
|
43 | """ An abstract base class for console-type widgets. This class has | |
44 | functionality for: |
|
44 | functionality for: | |
45 |
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45 | |||
46 | * Maintaining a prompt and editing region |
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46 | * Maintaining a prompt and editing region | |
47 | * Providing the traditional Unix-style console keyboard shortcuts |
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47 | * Providing the traditional Unix-style console keyboard shortcuts | |
48 | * Performing tab completion |
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48 | * Performing tab completion | |
49 | * Paging text |
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49 | * Paging text | |
50 | * Handling ANSI escape codes |
|
50 | * Handling ANSI escape codes | |
51 |
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51 | |||
52 | ConsoleWidget also provides a number of utility methods that will be |
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52 | ConsoleWidget also provides a number of utility methods that will be | |
53 | convenient to implementors of a console-style widget. |
|
53 | convenient to implementors of a console-style widget. | |
54 | """ |
|
54 | """ | |
55 | __metaclass__ = MetaQObjectHasTraits |
|
55 | __metaclass__ = MetaQObjectHasTraits | |
56 |
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56 | |||
57 | #------ Configuration ------------------------------------------------------ |
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57 | #------ Configuration ------------------------------------------------------ | |
58 |
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58 | |||
59 | ansi_codes = Bool(True, config=True, |
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59 | ansi_codes = Bool(True, config=True, | |
60 | help="Whether to process ANSI escape codes." |
|
60 | help="Whether to process ANSI escape codes." | |
61 | ) |
|
61 | ) | |
62 | buffer_size = Integer(500, config=True, |
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62 | buffer_size = Integer(500, config=True, | |
63 | help=""" |
|
63 | help=""" | |
64 | The maximum number of lines of text before truncation. Specifying a |
|
64 | The maximum number of lines of text before truncation. Specifying a | |
65 | non-positive number disables text truncation (not recommended). |
|
65 | non-positive number disables text truncation (not recommended). | |
66 | """ |
|
66 | """ | |
67 | ) |
|
67 | ) | |
68 | gui_completion = Bool(False, config=True, |
|
68 | gui_completion = Bool(False, config=True, | |
69 | help=""" |
|
69 | help=""" | |
70 | Use a list widget instead of plain text output for tab completion. |
|
70 | Use a list widget instead of plain text output for tab completion. | |
71 | """ |
|
71 | """ | |
72 | ) |
|
72 | ) | |
73 | # NOTE: this value can only be specified during initialization. |
|
73 | # NOTE: this value can only be specified during initialization. | |
74 | kind = Enum(['plain', 'rich'], default_value='plain', config=True, |
|
74 | kind = Enum(['plain', 'rich'], default_value='plain', config=True, | |
75 | help=""" |
|
75 | help=""" | |
76 | The type of underlying text widget to use. Valid values are 'plain', |
|
76 | The type of underlying text widget to use. Valid values are 'plain', | |
77 | which specifies a QPlainTextEdit, and 'rich', which specifies a |
|
77 | which specifies a QPlainTextEdit, and 'rich', which specifies a | |
78 | QTextEdit. |
|
78 | QTextEdit. | |
79 | """ |
|
79 | """ | |
80 | ) |
|
80 | ) | |
81 | # NOTE: this value can only be specified during initialization. |
|
81 | # NOTE: this value can only be specified during initialization. | |
82 | paging = Enum(['inside', 'hsplit', 'vsplit', 'custom', 'none'], |
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82 | paging = Enum(['inside', 'hsplit', 'vsplit', 'custom', 'none'], | |
83 | default_value='inside', config=True, |
|
83 | default_value='inside', config=True, | |
84 | help=""" |
|
84 | help=""" | |
85 | The type of paging to use. Valid values are: |
|
85 | The type of paging to use. Valid values are: | |
86 |
|
86 | |||
87 | 'inside' : The widget pages like a traditional terminal. |
|
87 | 'inside' : The widget pages like a traditional terminal. | |
88 | 'hsplit' : When paging is requested, the widget is split |
|
88 | 'hsplit' : When paging is requested, the widget is split | |
89 | horizontally. The top pane contains the console, and the |
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89 | horizontally. The top pane contains the console, and the | |
90 | bottom pane contains the paged text. |
|
90 | bottom pane contains the paged text. | |
91 | 'vsplit' : Similar to 'hsplit', except that a vertical splitter |
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91 | 'vsplit' : Similar to 'hsplit', except that a vertical splitter | |
92 | used. |
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92 | used. | |
93 | 'custom' : No action is taken by the widget beyond emitting a |
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93 | 'custom' : No action is taken by the widget beyond emitting a | |
94 | 'custom_page_requested(str)' signal. |
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94 | 'custom_page_requested(str)' signal. | |
95 | 'none' : The text is written directly to the console. |
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95 | 'none' : The text is written directly to the console. | |
96 | """) |
|
96 | """) | |
97 |
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97 | |||
98 | font_family = Unicode(config=True, |
|
98 | font_family = Unicode(config=True, | |
99 | help="""The font family to use for the console. |
|
99 | help="""The font family to use for the console. | |
100 | On OSX this defaults to Monaco, on Windows the default is |
|
100 | On OSX this defaults to Monaco, on Windows the default is | |
101 | Consolas with fallback of Courier, and on other platforms |
|
101 | Consolas with fallback of Courier, and on other platforms | |
102 | the default is Monospace. |
|
102 | the default is Monospace. | |
103 | """) |
|
103 | """) | |
104 | def _font_family_default(self): |
|
104 | def _font_family_default(self): | |
105 | if sys.platform == 'win32': |
|
105 | if sys.platform == 'win32': | |
106 | # Consolas ships with Vista/Win7, fallback to Courier if needed |
|
106 | # Consolas ships with Vista/Win7, fallback to Courier if needed | |
107 | return 'Consolas' |
|
107 | return 'Consolas' | |
108 | elif sys.platform == 'darwin': |
|
108 | elif sys.platform == 'darwin': | |
109 | # OSX always has Monaco, no need for a fallback |
|
109 | # OSX always has Monaco, no need for a fallback | |
110 | return 'Monaco' |
|
110 | return 'Monaco' | |
111 | else: |
|
111 | else: | |
112 | # Monospace should always exist, no need for a fallback |
|
112 | # Monospace should always exist, no need for a fallback | |
113 | return 'Monospace' |
|
113 | return 'Monospace' | |
114 |
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114 | |||
115 | font_size = Integer(config=True, |
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115 | font_size = Integer(config=True, | |
116 | help="""The font size. If unconfigured, Qt will be entrusted |
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116 | help="""The font size. If unconfigured, Qt will be entrusted | |
117 | with the size of the font. |
|
117 | with the size of the font. | |
118 | """) |
|
118 | """) | |
119 |
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119 | |||
120 | # Whether to override ShortcutEvents for the keybindings defined by this |
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120 | # Whether to override ShortcutEvents for the keybindings defined by this | |
121 | # widget (Ctrl+n, Ctrl+a, etc). Enable this if you want this widget to take |
|
121 | # widget (Ctrl+n, Ctrl+a, etc). Enable this if you want this widget to take | |
122 | # priority (when it has focus) over, e.g., window-level menu shortcuts. |
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122 | # priority (when it has focus) over, e.g., window-level menu shortcuts. | |
123 | override_shortcuts = Bool(False) |
|
123 | override_shortcuts = Bool(False) | |
124 |
|
124 | |||
125 | #------ Signals ------------------------------------------------------------ |
|
125 | #------ Signals ------------------------------------------------------------ | |
126 |
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126 | |||
127 | # Signals that indicate ConsoleWidget state. |
|
127 | # Signals that indicate ConsoleWidget state. | |
128 | copy_available = QtCore.Signal(bool) |
|
128 | copy_available = QtCore.Signal(bool) | |
129 | redo_available = QtCore.Signal(bool) |
|
129 | redo_available = QtCore.Signal(bool) | |
130 | undo_available = QtCore.Signal(bool) |
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130 | undo_available = QtCore.Signal(bool) | |
131 |
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131 | |||
132 | # Signal emitted when paging is needed and the paging style has been |
|
132 | # Signal emitted when paging is needed and the paging style has been | |
133 | # specified as 'custom'. |
|
133 | # specified as 'custom'. | |
134 | custom_page_requested = QtCore.Signal(object) |
|
134 | custom_page_requested = QtCore.Signal(object) | |
135 |
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135 | |||
136 | # Signal emitted when the font is changed. |
|
136 | # Signal emitted when the font is changed. | |
137 | font_changed = QtCore.Signal(QtGui.QFont) |
|
137 | font_changed = QtCore.Signal(QtGui.QFont) | |
138 |
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138 | |||
139 | #------ Protected class variables ------------------------------------------ |
|
139 | #------ Protected class variables ------------------------------------------ | |
140 |
|
140 | |||
141 | # When the control key is down, these keys are mapped. |
|
141 | # When the control key is down, these keys are mapped. | |
142 | _ctrl_down_remap = { QtCore.Qt.Key_B : QtCore.Qt.Key_Left, |
|
142 | _ctrl_down_remap = { QtCore.Qt.Key_B : QtCore.Qt.Key_Left, | |
143 | QtCore.Qt.Key_F : QtCore.Qt.Key_Right, |
|
143 | QtCore.Qt.Key_F : QtCore.Qt.Key_Right, | |
144 | QtCore.Qt.Key_A : QtCore.Qt.Key_Home, |
|
144 | QtCore.Qt.Key_A : QtCore.Qt.Key_Home, | |
145 | QtCore.Qt.Key_P : QtCore.Qt.Key_Up, |
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145 | QtCore.Qt.Key_P : QtCore.Qt.Key_Up, | |
146 | QtCore.Qt.Key_N : QtCore.Qt.Key_Down, |
|
146 | QtCore.Qt.Key_N : QtCore.Qt.Key_Down, | |
147 | QtCore.Qt.Key_H : QtCore.Qt.Key_Backspace, |
|
147 | QtCore.Qt.Key_H : QtCore.Qt.Key_Backspace, | |
148 | QtCore.Qt.Key_D : QtCore.Qt.Key_Delete, } |
|
148 | QtCore.Qt.Key_D : QtCore.Qt.Key_Delete, } | |
149 | if not sys.platform == 'darwin': |
|
149 | if not sys.platform == 'darwin': | |
150 | # On OS X, Ctrl-E already does the right thing, whereas End moves the |
|
150 | # On OS X, Ctrl-E already does the right thing, whereas End moves the | |
151 | # cursor to the bottom of the buffer. |
|
151 | # cursor to the bottom of the buffer. | |
152 | _ctrl_down_remap[QtCore.Qt.Key_E] = QtCore.Qt.Key_End |
|
152 | _ctrl_down_remap[QtCore.Qt.Key_E] = QtCore.Qt.Key_End | |
153 |
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153 | |||
154 | # The shortcuts defined by this widget. We need to keep track of these to |
|
154 | # The shortcuts defined by this widget. We need to keep track of these to | |
155 | # support 'override_shortcuts' above. |
|
155 | # support 'override_shortcuts' above. | |
156 | _shortcuts = set(_ctrl_down_remap.keys() + |
|
156 | _shortcuts = set(_ctrl_down_remap.keys() + | |
157 | [ QtCore.Qt.Key_C, QtCore.Qt.Key_G, QtCore.Qt.Key_O, |
|
157 | [ QtCore.Qt.Key_C, QtCore.Qt.Key_G, QtCore.Qt.Key_O, | |
158 | QtCore.Qt.Key_V ]) |
|
158 | QtCore.Qt.Key_V ]) | |
159 |
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159 | |||
160 | #--------------------------------------------------------------------------- |
|
160 | #--------------------------------------------------------------------------- | |
161 | # 'QObject' interface |
|
161 | # 'QObject' interface | |
162 | #--------------------------------------------------------------------------- |
|
162 | #--------------------------------------------------------------------------- | |
163 |
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163 | |||
164 | def __init__(self, parent=None, **kw): |
|
164 | def __init__(self, parent=None, **kw): | |
165 | """ Create a ConsoleWidget. |
|
165 | """ Create a ConsoleWidget. | |
166 |
|
166 | |||
167 | Parameters: |
|
167 | Parameters: | |
168 | ----------- |
|
168 | ----------- | |
169 | parent : QWidget, optional [default None] |
|
169 | parent : QWidget, optional [default None] | |
170 | The parent for this widget. |
|
170 | The parent for this widget. | |
171 | """ |
|
171 | """ | |
172 | QtGui.QWidget.__init__(self, parent) |
|
172 | QtGui.QWidget.__init__(self, parent) | |
173 | LoggingConfigurable.__init__(self, **kw) |
|
173 | LoggingConfigurable.__init__(self, **kw) | |
174 |
|
174 | |||
175 | # Create the layout and underlying text widget. |
|
175 | # Create the layout and underlying text widget. | |
176 | layout = QtGui.QStackedLayout(self) |
|
176 | layout = QtGui.QStackedLayout(self) | |
177 | layout.setContentsMargins(0, 0, 0, 0) |
|
177 | layout.setContentsMargins(0, 0, 0, 0) | |
178 | self._control = self._create_control() |
|
178 | self._control = self._create_control() | |
179 | self._page_control = None |
|
179 | self._page_control = None | |
180 | self._splitter = None |
|
180 | self._splitter = None | |
181 | if self.paging in ('hsplit', 'vsplit'): |
|
181 | if self.paging in ('hsplit', 'vsplit'): | |
182 | self._splitter = QtGui.QSplitter() |
|
182 | self._splitter = QtGui.QSplitter() | |
183 | if self.paging == 'hsplit': |
|
183 | if self.paging == 'hsplit': | |
184 | self._splitter.setOrientation(QtCore.Qt.Horizontal) |
|
184 | self._splitter.setOrientation(QtCore.Qt.Horizontal) | |
185 | else: |
|
185 | else: | |
186 | self._splitter.setOrientation(QtCore.Qt.Vertical) |
|
186 | self._splitter.setOrientation(QtCore.Qt.Vertical) | |
187 | self._splitter.addWidget(self._control) |
|
187 | self._splitter.addWidget(self._control) | |
188 | layout.addWidget(self._splitter) |
|
188 | layout.addWidget(self._splitter) | |
189 | else: |
|
189 | else: | |
190 | layout.addWidget(self._control) |
|
190 | layout.addWidget(self._control) | |
191 |
|
191 | |||
192 | # Create the paging widget, if necessary. |
|
192 | # Create the paging widget, if necessary. | |
193 | if self.paging in ('inside', 'hsplit', 'vsplit'): |
|
193 | if self.paging in ('inside', 'hsplit', 'vsplit'): | |
194 | self._page_control = self._create_page_control() |
|
194 | self._page_control = self._create_page_control() | |
195 | if self._splitter: |
|
195 | if self._splitter: | |
196 | self._page_control.hide() |
|
196 | self._page_control.hide() | |
197 | self._splitter.addWidget(self._page_control) |
|
197 | self._splitter.addWidget(self._page_control) | |
198 | else: |
|
198 | else: | |
199 | layout.addWidget(self._page_control) |
|
199 | layout.addWidget(self._page_control) | |
200 |
|
200 | |||
201 | # Initialize protected variables. Some variables contain useful state |
|
201 | # Initialize protected variables. Some variables contain useful state | |
202 | # information for subclasses; they should be considered read-only. |
|
202 | # information for subclasses; they should be considered read-only. | |
203 | self._append_before_prompt_pos = 0 |
|
203 | self._append_before_prompt_pos = 0 | |
204 | self._ansi_processor = QtAnsiCodeProcessor() |
|
204 | self._ansi_processor = QtAnsiCodeProcessor() | |
205 | self._completion_widget = CompletionWidget(self._control) |
|
205 | self._completion_widget = CompletionWidget(self._control) | |
206 | self._continuation_prompt = '> ' |
|
206 | self._continuation_prompt = '> ' | |
207 | self._continuation_prompt_html = None |
|
207 | self._continuation_prompt_html = None | |
208 | self._executing = False |
|
208 | self._executing = False | |
209 | self._filter_drag = False |
|
209 | self._filter_drag = False | |
210 | self._filter_resize = False |
|
210 | self._filter_resize = False | |
211 | self._html_exporter = HtmlExporter(self._control) |
|
211 | self._html_exporter = HtmlExporter(self._control) | |
212 | self._input_buffer_executing = '' |
|
212 | self._input_buffer_executing = '' | |
213 | self._input_buffer_pending = '' |
|
213 | self._input_buffer_pending = '' | |
214 | self._kill_ring = QtKillRing(self._control) |
|
214 | self._kill_ring = QtKillRing(self._control) | |
215 | self._prompt = '' |
|
215 | self._prompt = '' | |
216 | self._prompt_html = None |
|
216 | self._prompt_html = None | |
217 | self._prompt_pos = 0 |
|
217 | self._prompt_pos = 0 | |
218 | self._prompt_sep = '' |
|
218 | self._prompt_sep = '' | |
219 | self._reading = False |
|
219 | self._reading = False | |
220 | self._reading_callback = None |
|
220 | self._reading_callback = None | |
221 | self._tab_width = 8 |
|
221 | self._tab_width = 8 | |
222 | self._text_completing_pos = 0 |
|
222 | self._text_completing_pos = 0 | |
223 |
|
223 | |||
224 | # Set a monospaced font. |
|
224 | # Set a monospaced font. | |
225 | self.reset_font() |
|
225 | self.reset_font() | |
226 |
|
226 | |||
227 | # Configure actions. |
|
227 | # Configure actions. | |
228 | action = QtGui.QAction('Print', None) |
|
228 | action = QtGui.QAction('Print', None) | |
229 | action.setEnabled(True) |
|
229 | action.setEnabled(True) | |
230 | printkey = QtGui.QKeySequence(QtGui.QKeySequence.Print) |
|
230 | printkey = QtGui.QKeySequence(QtGui.QKeySequence.Print) | |
231 | if printkey.matches("Ctrl+P") and sys.platform != 'darwin': |
|
231 | if printkey.matches("Ctrl+P") and sys.platform != 'darwin': | |
232 | # Only override the default if there is a collision. |
|
232 | # Only override the default if there is a collision. | |
233 | # Qt ctrl = cmd on OSX, so the match gets a false positive on OSX. |
|
233 | # Qt ctrl = cmd on OSX, so the match gets a false positive on OSX. | |
234 | printkey = "Ctrl+Shift+P" |
|
234 | printkey = "Ctrl+Shift+P" | |
235 | action.setShortcut(printkey) |
|
235 | action.setShortcut(printkey) | |
236 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) |
|
236 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) | |
237 | action.triggered.connect(self.print_) |
|
237 | action.triggered.connect(self.print_) | |
238 | self.addAction(action) |
|
238 | self.addAction(action) | |
239 | self.print_action = action |
|
239 | self.print_action = action | |
240 |
|
240 | |||
241 | action = QtGui.QAction('Save as HTML/XML', None) |
|
241 | action = QtGui.QAction('Save as HTML/XML', None) | |
242 | action.setShortcut(QtGui.QKeySequence.Save) |
|
242 | action.setShortcut(QtGui.QKeySequence.Save) | |
243 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) |
|
243 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) | |
244 | action.triggered.connect(self.export_html) |
|
244 | action.triggered.connect(self.export_html) | |
245 | self.addAction(action) |
|
245 | self.addAction(action) | |
246 | self.export_action = action |
|
246 | self.export_action = action | |
247 |
|
247 | |||
248 | action = QtGui.QAction('Select All', None) |
|
248 | action = QtGui.QAction('Select All', None) | |
249 | action.setEnabled(True) |
|
249 | action.setEnabled(True) | |
250 | selectall = QtGui.QKeySequence(QtGui.QKeySequence.SelectAll) |
|
250 | selectall = QtGui.QKeySequence(QtGui.QKeySequence.SelectAll) | |
251 | if selectall.matches("Ctrl+A") and sys.platform != 'darwin': |
|
251 | if selectall.matches("Ctrl+A") and sys.platform != 'darwin': | |
252 | # Only override the default if there is a collision. |
|
252 | # Only override the default if there is a collision. | |
253 | # Qt ctrl = cmd on OSX, so the match gets a false positive on OSX. |
|
253 | # Qt ctrl = cmd on OSX, so the match gets a false positive on OSX. | |
254 | selectall = "Ctrl+Shift+A" |
|
254 | selectall = "Ctrl+Shift+A" | |
255 | action.setShortcut(selectall) |
|
255 | action.setShortcut(selectall) | |
256 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) |
|
256 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) | |
257 | action.triggered.connect(self.select_all) |
|
257 | action.triggered.connect(self.select_all) | |
258 | self.addAction(action) |
|
258 | self.addAction(action) | |
259 | self.select_all_action = action |
|
259 | self.select_all_action = action | |
260 |
|
260 | |||
261 | self.increase_font_size = QtGui.QAction("Bigger Font", |
|
261 | self.increase_font_size = QtGui.QAction("Bigger Font", | |
262 | self, |
|
262 | self, | |
263 | shortcut=QtGui.QKeySequence.ZoomIn, |
|
263 | shortcut=QtGui.QKeySequence.ZoomIn, | |
264 | shortcutContext=QtCore.Qt.WidgetWithChildrenShortcut, |
|
264 | shortcutContext=QtCore.Qt.WidgetWithChildrenShortcut, | |
265 | statusTip="Increase the font size by one point", |
|
265 | statusTip="Increase the font size by one point", | |
266 | triggered=self._increase_font_size) |
|
266 | triggered=self._increase_font_size) | |
267 | self.addAction(self.increase_font_size) |
|
267 | self.addAction(self.increase_font_size) | |
268 |
|
268 | |||
269 | self.decrease_font_size = QtGui.QAction("Smaller Font", |
|
269 | self.decrease_font_size = QtGui.QAction("Smaller Font", | |
270 | self, |
|
270 | self, | |
271 | shortcut=QtGui.QKeySequence.ZoomOut, |
|
271 | shortcut=QtGui.QKeySequence.ZoomOut, | |
272 | shortcutContext=QtCore.Qt.WidgetWithChildrenShortcut, |
|
272 | shortcutContext=QtCore.Qt.WidgetWithChildrenShortcut, | |
273 | statusTip="Decrease the font size by one point", |
|
273 | statusTip="Decrease the font size by one point", | |
274 | triggered=self._decrease_font_size) |
|
274 | triggered=self._decrease_font_size) | |
275 | self.addAction(self.decrease_font_size) |
|
275 | self.addAction(self.decrease_font_size) | |
276 |
|
276 | |||
277 | self.reset_font_size = QtGui.QAction("Normal Font", |
|
277 | self.reset_font_size = QtGui.QAction("Normal Font", | |
278 | self, |
|
278 | self, | |
279 | shortcut="Ctrl+0", |
|
279 | shortcut="Ctrl+0", | |
280 | shortcutContext=QtCore.Qt.WidgetWithChildrenShortcut, |
|
280 | shortcutContext=QtCore.Qt.WidgetWithChildrenShortcut, | |
281 | statusTip="Restore the Normal font size", |
|
281 | statusTip="Restore the Normal font size", | |
282 | triggered=self.reset_font) |
|
282 | triggered=self.reset_font) | |
283 | self.addAction(self.reset_font_size) |
|
283 | self.addAction(self.reset_font_size) | |
284 |
|
284 | |||
285 |
|
285 | |||
286 |
|
286 | |||
287 | def eventFilter(self, obj, event): |
|
287 | def eventFilter(self, obj, event): | |
288 | """ Reimplemented to ensure a console-like behavior in the underlying |
|
288 | """ Reimplemented to ensure a console-like behavior in the underlying | |
289 | text widgets. |
|
289 | text widgets. | |
290 | """ |
|
290 | """ | |
291 | etype = event.type() |
|
291 | etype = event.type() | |
292 | if etype == QtCore.QEvent.KeyPress: |
|
292 | if etype == QtCore.QEvent.KeyPress: | |
293 |
|
293 | |||
294 | # Re-map keys for all filtered widgets. |
|
294 | # Re-map keys for all filtered widgets. | |
295 | key = event.key() |
|
295 | key = event.key() | |
296 | if self._control_key_down(event.modifiers()) and \ |
|
296 | if self._control_key_down(event.modifiers()) and \ | |
297 | key in self._ctrl_down_remap: |
|
297 | key in self._ctrl_down_remap: | |
298 | new_event = QtGui.QKeyEvent(QtCore.QEvent.KeyPress, |
|
298 | new_event = QtGui.QKeyEvent(QtCore.QEvent.KeyPress, | |
299 | self._ctrl_down_remap[key], |
|
299 | self._ctrl_down_remap[key], | |
300 | QtCore.Qt.NoModifier) |
|
300 | QtCore.Qt.NoModifier) | |
301 | QtGui.qApp.sendEvent(obj, new_event) |
|
301 | QtGui.qApp.sendEvent(obj, new_event) | |
302 | return True |
|
302 | return True | |
303 |
|
303 | |||
304 | elif obj == self._control: |
|
304 | elif obj == self._control: | |
305 | return self._event_filter_console_keypress(event) |
|
305 | return self._event_filter_console_keypress(event) | |
306 |
|
306 | |||
307 | elif obj == self._page_control: |
|
307 | elif obj == self._page_control: | |
308 | return self._event_filter_page_keypress(event) |
|
308 | return self._event_filter_page_keypress(event) | |
309 |
|
309 | |||
310 | # Make middle-click paste safe. |
|
310 | # Make middle-click paste safe. | |
311 | elif etype == QtCore.QEvent.MouseButtonRelease and \ |
|
311 | elif etype == QtCore.QEvent.MouseButtonRelease and \ | |
312 | event.button() == QtCore.Qt.MidButton and \ |
|
312 | event.button() == QtCore.Qt.MidButton and \ | |
313 | obj == self._control.viewport(): |
|
313 | obj == self._control.viewport(): | |
314 | cursor = self._control.cursorForPosition(event.pos()) |
|
314 | cursor = self._control.cursorForPosition(event.pos()) | |
315 | self._control.setTextCursor(cursor) |
|
315 | self._control.setTextCursor(cursor) | |
316 | self.paste(QtGui.QClipboard.Selection) |
|
316 | self.paste(QtGui.QClipboard.Selection) | |
317 | return True |
|
317 | return True | |
318 |
|
318 | |||
319 | # Manually adjust the scrollbars *after* a resize event is dispatched. |
|
319 | # Manually adjust the scrollbars *after* a resize event is dispatched. | |
320 | elif etype == QtCore.QEvent.Resize and not self._filter_resize: |
|
320 | elif etype == QtCore.QEvent.Resize and not self._filter_resize: | |
321 | self._filter_resize = True |
|
321 | self._filter_resize = True | |
322 | QtGui.qApp.sendEvent(obj, event) |
|
322 | QtGui.qApp.sendEvent(obj, event) | |
323 | self._adjust_scrollbars() |
|
323 | self._adjust_scrollbars() | |
324 | self._filter_resize = False |
|
324 | self._filter_resize = False | |
325 | return True |
|
325 | return True | |
326 |
|
326 | |||
327 | # Override shortcuts for all filtered widgets. |
|
327 | # Override shortcuts for all filtered widgets. | |
328 | elif etype == QtCore.QEvent.ShortcutOverride and \ |
|
328 | elif etype == QtCore.QEvent.ShortcutOverride and \ | |
329 | self.override_shortcuts and \ |
|
329 | self.override_shortcuts and \ | |
330 | self._control_key_down(event.modifiers()) and \ |
|
330 | self._control_key_down(event.modifiers()) and \ | |
331 | event.key() in self._shortcuts: |
|
331 | event.key() in self._shortcuts: | |
332 | event.accept() |
|
332 | event.accept() | |
333 |
|
333 | |||
334 | # Ensure that drags are safe. The problem is that the drag starting |
|
334 | # Ensure that drags are safe. The problem is that the drag starting | |
335 | # logic, which determines whether the drag is a Copy or Move, is locked |
|
335 | # logic, which determines whether the drag is a Copy or Move, is locked | |
336 | # down in QTextControl. If the widget is editable, which it must be if |
|
336 | # down in QTextControl. If the widget is editable, which it must be if | |
337 | # we're not executing, the drag will be a Move. The following hack |
|
337 | # we're not executing, the drag will be a Move. The following hack | |
338 | # prevents QTextControl from deleting the text by clearing the selection |
|
338 | # prevents QTextControl from deleting the text by clearing the selection | |
339 | # when a drag leave event originating from this widget is dispatched. |
|
339 | # when a drag leave event originating from this widget is dispatched. | |
340 | # The fact that we have to clear the user's selection is unfortunate, |
|
340 | # The fact that we have to clear the user's selection is unfortunate, | |
341 | # but the alternative--trying to prevent Qt from using its hardwired |
|
341 | # but the alternative--trying to prevent Qt from using its hardwired | |
342 | # drag logic and writing our own--is worse. |
|
342 | # drag logic and writing our own--is worse. | |
343 | elif etype == QtCore.QEvent.DragEnter and \ |
|
343 | elif etype == QtCore.QEvent.DragEnter and \ | |
344 | obj == self._control.viewport() and \ |
|
344 | obj == self._control.viewport() and \ | |
345 | event.source() == self._control.viewport(): |
|
345 | event.source() == self._control.viewport(): | |
346 | self._filter_drag = True |
|
346 | self._filter_drag = True | |
347 | elif etype == QtCore.QEvent.DragLeave and \ |
|
347 | elif etype == QtCore.QEvent.DragLeave and \ | |
348 | obj == self._control.viewport() and \ |
|
348 | obj == self._control.viewport() and \ | |
349 | self._filter_drag: |
|
349 | self._filter_drag: | |
350 | cursor = self._control.textCursor() |
|
350 | cursor = self._control.textCursor() | |
351 | cursor.clearSelection() |
|
351 | cursor.clearSelection() | |
352 | self._control.setTextCursor(cursor) |
|
352 | self._control.setTextCursor(cursor) | |
353 | self._filter_drag = False |
|
353 | self._filter_drag = False | |
354 |
|
354 | |||
355 | # Ensure that drops are safe. |
|
355 | # Ensure that drops are safe. | |
356 | elif etype == QtCore.QEvent.Drop and obj == self._control.viewport(): |
|
356 | elif etype == QtCore.QEvent.Drop and obj == self._control.viewport(): | |
357 | cursor = self._control.cursorForPosition(event.pos()) |
|
357 | cursor = self._control.cursorForPosition(event.pos()) | |
358 | if self._in_buffer(cursor.position()): |
|
358 | if self._in_buffer(cursor.position()): | |
359 | text = event.mimeData().text() |
|
359 | text = event.mimeData().text() | |
360 | self._insert_plain_text_into_buffer(cursor, text) |
|
360 | self._insert_plain_text_into_buffer(cursor, text) | |
361 |
|
361 | |||
362 | # Qt is expecting to get something here--drag and drop occurs in its |
|
362 | # Qt is expecting to get something here--drag and drop occurs in its | |
363 | # own event loop. Send a DragLeave event to end it. |
|
363 | # own event loop. Send a DragLeave event to end it. | |
364 | QtGui.qApp.sendEvent(obj, QtGui.QDragLeaveEvent()) |
|
364 | QtGui.qApp.sendEvent(obj, QtGui.QDragLeaveEvent()) | |
365 | return True |
|
365 | return True | |
366 |
|
366 | |||
367 | return super(ConsoleWidget, self).eventFilter(obj, event) |
|
367 | return super(ConsoleWidget, self).eventFilter(obj, event) | |
368 |
|
368 | |||
369 | #--------------------------------------------------------------------------- |
|
369 | #--------------------------------------------------------------------------- | |
370 | # 'QWidget' interface |
|
370 | # 'QWidget' interface | |
371 | #--------------------------------------------------------------------------- |
|
371 | #--------------------------------------------------------------------------- | |
372 |
|
372 | |||
373 | def sizeHint(self): |
|
373 | def sizeHint(self): | |
374 | """ Reimplemented to suggest a size that is 80 characters wide and |
|
374 | """ Reimplemented to suggest a size that is 80 characters wide and | |
375 | 25 lines high. |
|
375 | 25 lines high. | |
376 | """ |
|
376 | """ | |
377 | font_metrics = QtGui.QFontMetrics(self.font) |
|
377 | font_metrics = QtGui.QFontMetrics(self.font) | |
378 | margin = (self._control.frameWidth() + |
|
378 | margin = (self._control.frameWidth() + | |
379 | self._control.document().documentMargin()) * 2 |
|
379 | self._control.document().documentMargin()) * 2 | |
380 | style = self.style() |
|
380 | style = self.style() | |
381 | splitwidth = style.pixelMetric(QtGui.QStyle.PM_SplitterWidth) |
|
381 | splitwidth = style.pixelMetric(QtGui.QStyle.PM_SplitterWidth) | |
382 |
|
382 | |||
383 | # Note 1: Despite my best efforts to take the various margins into |
|
383 | # Note 1: Despite my best efforts to take the various margins into | |
384 | # account, the width is still coming out a bit too small, so we include |
|
384 | # account, the width is still coming out a bit too small, so we include | |
385 | # a fudge factor of one character here. |
|
385 | # a fudge factor of one character here. | |
386 | # Note 2: QFontMetrics.maxWidth is not used here or anywhere else due |
|
386 | # Note 2: QFontMetrics.maxWidth is not used here or anywhere else due | |
387 | # to a Qt bug on certain Mac OS systems where it returns 0. |
|
387 | # to a Qt bug on certain Mac OS systems where it returns 0. | |
388 | width = font_metrics.width(' ') * 81 + margin |
|
388 | width = font_metrics.width(' ') * 81 + margin | |
389 | width += style.pixelMetric(QtGui.QStyle.PM_ScrollBarExtent) |
|
389 | width += style.pixelMetric(QtGui.QStyle.PM_ScrollBarExtent) | |
390 | if self.paging == 'hsplit': |
|
390 | if self.paging == 'hsplit': | |
391 | width = width * 2 + splitwidth |
|
391 | width = width * 2 + splitwidth | |
392 |
|
392 | |||
393 | height = font_metrics.height() * 25 + margin |
|
393 | height = font_metrics.height() * 25 + margin | |
394 | if self.paging == 'vsplit': |
|
394 | if self.paging == 'vsplit': | |
395 | height = height * 2 + splitwidth |
|
395 | height = height * 2 + splitwidth | |
396 |
|
396 | |||
397 | return QtCore.QSize(width, height) |
|
397 | return QtCore.QSize(width, height) | |
398 |
|
398 | |||
399 | #--------------------------------------------------------------------------- |
|
399 | #--------------------------------------------------------------------------- | |
400 | # 'ConsoleWidget' public interface |
|
400 | # 'ConsoleWidget' public interface | |
401 | #--------------------------------------------------------------------------- |
|
401 | #--------------------------------------------------------------------------- | |
402 |
|
402 | |||
403 | def can_copy(self): |
|
403 | def can_copy(self): | |
404 | """ Returns whether text can be copied to the clipboard. |
|
404 | """ Returns whether text can be copied to the clipboard. | |
405 | """ |
|
405 | """ | |
406 | return self._control.textCursor().hasSelection() |
|
406 | return self._control.textCursor().hasSelection() | |
407 |
|
407 | |||
408 | def can_cut(self): |
|
408 | def can_cut(self): | |
409 | """ Returns whether text can be cut to the clipboard. |
|
409 | """ Returns whether text can be cut to the clipboard. | |
410 | """ |
|
410 | """ | |
411 | cursor = self._control.textCursor() |
|
411 | cursor = self._control.textCursor() | |
412 | return (cursor.hasSelection() and |
|
412 | return (cursor.hasSelection() and | |
413 | self._in_buffer(cursor.anchor()) and |
|
413 | self._in_buffer(cursor.anchor()) and | |
414 | self._in_buffer(cursor.position())) |
|
414 | self._in_buffer(cursor.position())) | |
415 |
|
415 | |||
416 | def can_paste(self): |
|
416 | def can_paste(self): | |
417 | """ Returns whether text can be pasted from the clipboard. |
|
417 | """ Returns whether text can be pasted from the clipboard. | |
418 | """ |
|
418 | """ | |
419 | if self._control.textInteractionFlags() & QtCore.Qt.TextEditable: |
|
419 | if self._control.textInteractionFlags() & QtCore.Qt.TextEditable: | |
420 | return bool(QtGui.QApplication.clipboard().text()) |
|
420 | return bool(QtGui.QApplication.clipboard().text()) | |
421 | return False |
|
421 | return False | |
422 |
|
422 | |||
423 | def clear(self, keep_input=True): |
|
423 | def clear(self, keep_input=True): | |
424 | """ Clear the console. |
|
424 | """ Clear the console. | |
425 |
|
425 | |||
426 | Parameters: |
|
426 | Parameters: | |
427 | ----------- |
|
427 | ----------- | |
428 | keep_input : bool, optional (default True) |
|
428 | keep_input : bool, optional (default True) | |
429 | If set, restores the old input buffer if a new prompt is written. |
|
429 | If set, restores the old input buffer if a new prompt is written. | |
430 | """ |
|
430 | """ | |
431 | if self._executing: |
|
431 | if self._executing: | |
432 | self._control.clear() |
|
432 | self._control.clear() | |
433 | else: |
|
433 | else: | |
434 | if keep_input: |
|
434 | if keep_input: | |
435 | input_buffer = self.input_buffer |
|
435 | input_buffer = self.input_buffer | |
436 | self._control.clear() |
|
436 | self._control.clear() | |
437 | self._show_prompt() |
|
437 | self._show_prompt() | |
438 | if keep_input: |
|
438 | if keep_input: | |
439 | self.input_buffer = input_buffer |
|
439 | self.input_buffer = input_buffer | |
440 |
|
440 | |||
441 | def copy(self): |
|
441 | def copy(self): | |
442 | """ Copy the currently selected text to the clipboard. |
|
442 | """ Copy the currently selected text to the clipboard. | |
443 | """ |
|
443 | """ | |
444 | self._control.copy() |
|
444 | if self.layout().currentWidget() == self._page_control : | |
|
445 | self._page_control.copy() | |||
|
446 | elif self.layout().currentWidget() == self._control : | |||
|
447 | self._control.copy() | |||
|
448 | else : | |||
|
449 | self.log.debug("console widget: unknown copy target") | |||
445 |
|
450 | |||
446 | def cut(self): |
|
451 | def cut(self): | |
447 | """ Copy the currently selected text to the clipboard and delete it |
|
452 | """ Copy the currently selected text to the clipboard and delete it | |
448 | if it's inside the input buffer. |
|
453 | if it's inside the input buffer. | |
449 | """ |
|
454 | """ | |
450 | self.copy() |
|
455 | self.copy() | |
451 | if self.can_cut(): |
|
456 | if self.can_cut(): | |
452 | self._control.textCursor().removeSelectedText() |
|
457 | self._control.textCursor().removeSelectedText() | |
453 |
|
458 | |||
454 | def execute(self, source=None, hidden=False, interactive=False): |
|
459 | def execute(self, source=None, hidden=False, interactive=False): | |
455 | """ Executes source or the input buffer, possibly prompting for more |
|
460 | """ Executes source or the input buffer, possibly prompting for more | |
456 | input. |
|
461 | input. | |
457 |
|
462 | |||
458 | Parameters: |
|
463 | Parameters: | |
459 | ----------- |
|
464 | ----------- | |
460 | source : str, optional |
|
465 | source : str, optional | |
461 |
|
466 | |||
462 | The source to execute. If not specified, the input buffer will be |
|
467 | The source to execute. If not specified, the input buffer will be | |
463 | used. If specified and 'hidden' is False, the input buffer will be |
|
468 | used. If specified and 'hidden' is False, the input buffer will be | |
464 | replaced with the source before execution. |
|
469 | replaced with the source before execution. | |
465 |
|
470 | |||
466 | hidden : bool, optional (default False) |
|
471 | hidden : bool, optional (default False) | |
467 |
|
472 | |||
468 | If set, no output will be shown and the prompt will not be modified. |
|
473 | If set, no output will be shown and the prompt will not be modified. | |
469 | In other words, it will be completely invisible to the user that |
|
474 | In other words, it will be completely invisible to the user that | |
470 | an execution has occurred. |
|
475 | an execution has occurred. | |
471 |
|
476 | |||
472 | interactive : bool, optional (default False) |
|
477 | interactive : bool, optional (default False) | |
473 |
|
478 | |||
474 | Whether the console is to treat the source as having been manually |
|
479 | Whether the console is to treat the source as having been manually | |
475 | entered by the user. The effect of this parameter depends on the |
|
480 | entered by the user. The effect of this parameter depends on the | |
476 | subclass implementation. |
|
481 | subclass implementation. | |
477 |
|
482 | |||
478 | Raises: |
|
483 | Raises: | |
479 | ------- |
|
484 | ------- | |
480 | RuntimeError |
|
485 | RuntimeError | |
481 | If incomplete input is given and 'hidden' is True. In this case, |
|
486 | If incomplete input is given and 'hidden' is True. In this case, | |
482 | it is not possible to prompt for more input. |
|
487 | it is not possible to prompt for more input. | |
483 |
|
488 | |||
484 | Returns: |
|
489 | Returns: | |
485 | -------- |
|
490 | -------- | |
486 | A boolean indicating whether the source was executed. |
|
491 | A boolean indicating whether the source was executed. | |
487 | """ |
|
492 | """ | |
488 | # WARNING: The order in which things happen here is very particular, in |
|
493 | # WARNING: The order in which things happen here is very particular, in | |
489 | # large part because our syntax highlighting is fragile. If you change |
|
494 | # large part because our syntax highlighting is fragile. If you change | |
490 | # something, test carefully! |
|
495 | # something, test carefully! | |
491 |
|
496 | |||
492 | # Decide what to execute. |
|
497 | # Decide what to execute. | |
493 | if source is None: |
|
498 | if source is None: | |
494 | source = self.input_buffer |
|
499 | source = self.input_buffer | |
495 | if not hidden: |
|
500 | if not hidden: | |
496 | # A newline is appended later, but it should be considered part |
|
501 | # A newline is appended later, but it should be considered part | |
497 | # of the input buffer. |
|
502 | # of the input buffer. | |
498 | source += '\n' |
|
503 | source += '\n' | |
499 | elif not hidden: |
|
504 | elif not hidden: | |
500 | self.input_buffer = source |
|
505 | self.input_buffer = source | |
501 |
|
506 | |||
502 | # Execute the source or show a continuation prompt if it is incomplete. |
|
507 | # Execute the source or show a continuation prompt if it is incomplete. | |
503 | complete = self._is_complete(source, interactive) |
|
508 | complete = self._is_complete(source, interactive) | |
504 | if hidden: |
|
509 | if hidden: | |
505 | if complete: |
|
510 | if complete: | |
506 | self._execute(source, hidden) |
|
511 | self._execute(source, hidden) | |
507 | else: |
|
512 | else: | |
508 | error = 'Incomplete noninteractive input: "%s"' |
|
513 | error = 'Incomplete noninteractive input: "%s"' | |
509 | raise RuntimeError(error % source) |
|
514 | raise RuntimeError(error % source) | |
510 | else: |
|
515 | else: | |
511 | if complete: |
|
516 | if complete: | |
512 | self._append_plain_text('\n') |
|
517 | self._append_plain_text('\n') | |
513 | self._input_buffer_executing = self.input_buffer |
|
518 | self._input_buffer_executing = self.input_buffer | |
514 | self._executing = True |
|
519 | self._executing = True | |
515 | self._prompt_finished() |
|
520 | self._prompt_finished() | |
516 |
|
521 | |||
517 | # The maximum block count is only in effect during execution. |
|
522 | # The maximum block count is only in effect during execution. | |
518 | # This ensures that _prompt_pos does not become invalid due to |
|
523 | # This ensures that _prompt_pos does not become invalid due to | |
519 | # text truncation. |
|
524 | # text truncation. | |
520 | self._control.document().setMaximumBlockCount(self.buffer_size) |
|
525 | self._control.document().setMaximumBlockCount(self.buffer_size) | |
521 |
|
526 | |||
522 | # Setting a positive maximum block count will automatically |
|
527 | # Setting a positive maximum block count will automatically | |
523 | # disable the undo/redo history, but just to be safe: |
|
528 | # disable the undo/redo history, but just to be safe: | |
524 | self._control.setUndoRedoEnabled(False) |
|
529 | self._control.setUndoRedoEnabled(False) | |
525 |
|
530 | |||
526 | # Perform actual execution. |
|
531 | # Perform actual execution. | |
527 | self._execute(source, hidden) |
|
532 | self._execute(source, hidden) | |
528 |
|
533 | |||
529 | else: |
|
534 | else: | |
530 | # Do this inside an edit block so continuation prompts are |
|
535 | # Do this inside an edit block so continuation prompts are | |
531 | # removed seamlessly via undo/redo. |
|
536 | # removed seamlessly via undo/redo. | |
532 | cursor = self._get_end_cursor() |
|
537 | cursor = self._get_end_cursor() | |
533 | cursor.beginEditBlock() |
|
538 | cursor.beginEditBlock() | |
534 | cursor.insertText('\n') |
|
539 | cursor.insertText('\n') | |
535 | self._insert_continuation_prompt(cursor) |
|
540 | self._insert_continuation_prompt(cursor) | |
536 | cursor.endEditBlock() |
|
541 | cursor.endEditBlock() | |
537 |
|
542 | |||
538 | # Do not do this inside the edit block. It works as expected |
|
543 | # Do not do this inside the edit block. It works as expected | |
539 | # when using a QPlainTextEdit control, but does not have an |
|
544 | # when using a QPlainTextEdit control, but does not have an | |
540 | # effect when using a QTextEdit. I believe this is a Qt bug. |
|
545 | # effect when using a QTextEdit. I believe this is a Qt bug. | |
541 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
546 | self._control.moveCursor(QtGui.QTextCursor.End) | |
542 |
|
547 | |||
543 | return complete |
|
548 | return complete | |
544 |
|
549 | |||
545 | def export_html(self): |
|
550 | def export_html(self): | |
546 | """ Shows a dialog to export HTML/XML in various formats. |
|
551 | """ Shows a dialog to export HTML/XML in various formats. | |
547 | """ |
|
552 | """ | |
548 | self._html_exporter.export() |
|
553 | self._html_exporter.export() | |
549 |
|
554 | |||
550 | def _get_input_buffer(self, force=False): |
|
555 | def _get_input_buffer(self, force=False): | |
551 | """ The text that the user has entered entered at the current prompt. |
|
556 | """ The text that the user has entered entered at the current prompt. | |
552 |
|
557 | |||
553 | If the console is currently executing, the text that is executing will |
|
558 | If the console is currently executing, the text that is executing will | |
554 | always be returned. |
|
559 | always be returned. | |
555 | """ |
|
560 | """ | |
556 | # If we're executing, the input buffer may not even exist anymore due to |
|
561 | # If we're executing, the input buffer may not even exist anymore due to | |
557 | # the limit imposed by 'buffer_size'. Therefore, we store it. |
|
562 | # the limit imposed by 'buffer_size'. Therefore, we store it. | |
558 | if self._executing and not force: |
|
563 | if self._executing and not force: | |
559 | return self._input_buffer_executing |
|
564 | return self._input_buffer_executing | |
560 |
|
565 | |||
561 | cursor = self._get_end_cursor() |
|
566 | cursor = self._get_end_cursor() | |
562 | cursor.setPosition(self._prompt_pos, QtGui.QTextCursor.KeepAnchor) |
|
567 | cursor.setPosition(self._prompt_pos, QtGui.QTextCursor.KeepAnchor) | |
563 | input_buffer = cursor.selection().toPlainText() |
|
568 | input_buffer = cursor.selection().toPlainText() | |
564 |
|
569 | |||
565 | # Strip out continuation prompts. |
|
570 | # Strip out continuation prompts. | |
566 | return input_buffer.replace('\n' + self._continuation_prompt, '\n') |
|
571 | return input_buffer.replace('\n' + self._continuation_prompt, '\n') | |
567 |
|
572 | |||
568 | def _set_input_buffer(self, string): |
|
573 | def _set_input_buffer(self, string): | |
569 | """ Sets the text in the input buffer. |
|
574 | """ Sets the text in the input buffer. | |
570 |
|
575 | |||
571 | If the console is currently executing, this call has no *immediate* |
|
576 | If the console is currently executing, this call has no *immediate* | |
572 | effect. When the execution is finished, the input buffer will be updated |
|
577 | effect. When the execution is finished, the input buffer will be updated | |
573 | appropriately. |
|
578 | appropriately. | |
574 | """ |
|
579 | """ | |
575 | # If we're executing, store the text for later. |
|
580 | # If we're executing, store the text for later. | |
576 | if self._executing: |
|
581 | if self._executing: | |
577 | self._input_buffer_pending = string |
|
582 | self._input_buffer_pending = string | |
578 | return |
|
583 | return | |
579 |
|
584 | |||
580 | # Remove old text. |
|
585 | # Remove old text. | |
581 | cursor = self._get_end_cursor() |
|
586 | cursor = self._get_end_cursor() | |
582 | cursor.beginEditBlock() |
|
587 | cursor.beginEditBlock() | |
583 | cursor.setPosition(self._prompt_pos, QtGui.QTextCursor.KeepAnchor) |
|
588 | cursor.setPosition(self._prompt_pos, QtGui.QTextCursor.KeepAnchor) | |
584 | cursor.removeSelectedText() |
|
589 | cursor.removeSelectedText() | |
585 |
|
590 | |||
586 | # Insert new text with continuation prompts. |
|
591 | # Insert new text with continuation prompts. | |
587 | self._insert_plain_text_into_buffer(self._get_prompt_cursor(), string) |
|
592 | self._insert_plain_text_into_buffer(self._get_prompt_cursor(), string) | |
588 | cursor.endEditBlock() |
|
593 | cursor.endEditBlock() | |
589 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
594 | self._control.moveCursor(QtGui.QTextCursor.End) | |
590 |
|
595 | |||
591 | input_buffer = property(_get_input_buffer, _set_input_buffer) |
|
596 | input_buffer = property(_get_input_buffer, _set_input_buffer) | |
592 |
|
597 | |||
593 | def _get_font(self): |
|
598 | def _get_font(self): | |
594 | """ The base font being used by the ConsoleWidget. |
|
599 | """ The base font being used by the ConsoleWidget. | |
595 | """ |
|
600 | """ | |
596 | return self._control.document().defaultFont() |
|
601 | return self._control.document().defaultFont() | |
597 |
|
602 | |||
598 | def _set_font(self, font): |
|
603 | def _set_font(self, font): | |
599 | """ Sets the base font for the ConsoleWidget to the specified QFont. |
|
604 | """ Sets the base font for the ConsoleWidget to the specified QFont. | |
600 | """ |
|
605 | """ | |
601 | font_metrics = QtGui.QFontMetrics(font) |
|
606 | font_metrics = QtGui.QFontMetrics(font) | |
602 | self._control.setTabStopWidth(self.tab_width * font_metrics.width(' ')) |
|
607 | self._control.setTabStopWidth(self.tab_width * font_metrics.width(' ')) | |
603 |
|
608 | |||
604 | self._completion_widget.setFont(font) |
|
609 | self._completion_widget.setFont(font) | |
605 | self._control.document().setDefaultFont(font) |
|
610 | self._control.document().setDefaultFont(font) | |
606 | if self._page_control: |
|
611 | if self._page_control: | |
607 | self._page_control.document().setDefaultFont(font) |
|
612 | self._page_control.document().setDefaultFont(font) | |
608 |
|
613 | |||
609 | self.font_changed.emit(font) |
|
614 | self.font_changed.emit(font) | |
610 |
|
615 | |||
611 | font = property(_get_font, _set_font) |
|
616 | font = property(_get_font, _set_font) | |
612 |
|
617 | |||
613 | def paste(self, mode=QtGui.QClipboard.Clipboard): |
|
618 | def paste(self, mode=QtGui.QClipboard.Clipboard): | |
614 | """ Paste the contents of the clipboard into the input region. |
|
619 | """ Paste the contents of the clipboard into the input region. | |
615 |
|
620 | |||
616 | Parameters: |
|
621 | Parameters: | |
617 | ----------- |
|
622 | ----------- | |
618 | mode : QClipboard::Mode, optional [default QClipboard::Clipboard] |
|
623 | mode : QClipboard::Mode, optional [default QClipboard::Clipboard] | |
619 |
|
624 | |||
620 | Controls which part of the system clipboard is used. This can be |
|
625 | Controls which part of the system clipboard is used. This can be | |
621 | used to access the selection clipboard in X11 and the Find buffer |
|
626 | used to access the selection clipboard in X11 and the Find buffer | |
622 | in Mac OS. By default, the regular clipboard is used. |
|
627 | in Mac OS. By default, the regular clipboard is used. | |
623 | """ |
|
628 | """ | |
624 | if self._control.textInteractionFlags() & QtCore.Qt.TextEditable: |
|
629 | if self._control.textInteractionFlags() & QtCore.Qt.TextEditable: | |
625 | # Make sure the paste is safe. |
|
630 | # Make sure the paste is safe. | |
626 | self._keep_cursor_in_buffer() |
|
631 | self._keep_cursor_in_buffer() | |
627 | cursor = self._control.textCursor() |
|
632 | cursor = self._control.textCursor() | |
628 |
|
633 | |||
629 | # Remove any trailing newline, which confuses the GUI and forces the |
|
634 | # Remove any trailing newline, which confuses the GUI and forces the | |
630 | # user to backspace. |
|
635 | # user to backspace. | |
631 | text = QtGui.QApplication.clipboard().text(mode).rstrip() |
|
636 | text = QtGui.QApplication.clipboard().text(mode).rstrip() | |
632 | self._insert_plain_text_into_buffer(cursor, dedent(text)) |
|
637 | self._insert_plain_text_into_buffer(cursor, dedent(text)) | |
633 |
|
638 | |||
634 | def print_(self, printer = None): |
|
639 | def print_(self, printer = None): | |
635 | """ Print the contents of the ConsoleWidget to the specified QPrinter. |
|
640 | """ Print the contents of the ConsoleWidget to the specified QPrinter. | |
636 | """ |
|
641 | """ | |
637 | if (not printer): |
|
642 | if (not printer): | |
638 | printer = QtGui.QPrinter() |
|
643 | printer = QtGui.QPrinter() | |
639 | if(QtGui.QPrintDialog(printer).exec_() != QtGui.QDialog.Accepted): |
|
644 | if(QtGui.QPrintDialog(printer).exec_() != QtGui.QDialog.Accepted): | |
640 | return |
|
645 | return | |
641 | self._control.print_(printer) |
|
646 | self._control.print_(printer) | |
642 |
|
647 | |||
643 | def prompt_to_top(self): |
|
648 | def prompt_to_top(self): | |
644 | """ Moves the prompt to the top of the viewport. |
|
649 | """ Moves the prompt to the top of the viewport. | |
645 | """ |
|
650 | """ | |
646 | if not self._executing: |
|
651 | if not self._executing: | |
647 | prompt_cursor = self._get_prompt_cursor() |
|
652 | prompt_cursor = self._get_prompt_cursor() | |
648 | if self._get_cursor().blockNumber() < prompt_cursor.blockNumber(): |
|
653 | if self._get_cursor().blockNumber() < prompt_cursor.blockNumber(): | |
649 | self._set_cursor(prompt_cursor) |
|
654 | self._set_cursor(prompt_cursor) | |
650 | self._set_top_cursor(prompt_cursor) |
|
655 | self._set_top_cursor(prompt_cursor) | |
651 |
|
656 | |||
652 | def redo(self): |
|
657 | def redo(self): | |
653 | """ Redo the last operation. If there is no operation to redo, nothing |
|
658 | """ Redo the last operation. If there is no operation to redo, nothing | |
654 | happens. |
|
659 | happens. | |
655 | """ |
|
660 | """ | |
656 | self._control.redo() |
|
661 | self._control.redo() | |
657 |
|
662 | |||
658 | def reset_font(self): |
|
663 | def reset_font(self): | |
659 | """ Sets the font to the default fixed-width font for this platform. |
|
664 | """ Sets the font to the default fixed-width font for this platform. | |
660 | """ |
|
665 | """ | |
661 | if sys.platform == 'win32': |
|
666 | if sys.platform == 'win32': | |
662 | # Consolas ships with Vista/Win7, fallback to Courier if needed |
|
667 | # Consolas ships with Vista/Win7, fallback to Courier if needed | |
663 | fallback = 'Courier' |
|
668 | fallback = 'Courier' | |
664 | elif sys.platform == 'darwin': |
|
669 | elif sys.platform == 'darwin': | |
665 | # OSX always has Monaco |
|
670 | # OSX always has Monaco | |
666 | fallback = 'Monaco' |
|
671 | fallback = 'Monaco' | |
667 | else: |
|
672 | else: | |
668 | # Monospace should always exist |
|
673 | # Monospace should always exist | |
669 | fallback = 'Monospace' |
|
674 | fallback = 'Monospace' | |
670 | font = get_font(self.font_family, fallback) |
|
675 | font = get_font(self.font_family, fallback) | |
671 | if self.font_size: |
|
676 | if self.font_size: | |
672 | font.setPointSize(self.font_size) |
|
677 | font.setPointSize(self.font_size) | |
673 | else: |
|
678 | else: | |
674 | font.setPointSize(QtGui.qApp.font().pointSize()) |
|
679 | font.setPointSize(QtGui.qApp.font().pointSize()) | |
675 | font.setStyleHint(QtGui.QFont.TypeWriter) |
|
680 | font.setStyleHint(QtGui.QFont.TypeWriter) | |
676 | self._set_font(font) |
|
681 | self._set_font(font) | |
677 |
|
682 | |||
678 | def change_font_size(self, delta): |
|
683 | def change_font_size(self, delta): | |
679 | """Change the font size by the specified amount (in points). |
|
684 | """Change the font size by the specified amount (in points). | |
680 | """ |
|
685 | """ | |
681 | font = self.font |
|
686 | font = self.font | |
682 | size = max(font.pointSize() + delta, 1) # minimum 1 point |
|
687 | size = max(font.pointSize() + delta, 1) # minimum 1 point | |
683 | font.setPointSize(size) |
|
688 | font.setPointSize(size) | |
684 | self._set_font(font) |
|
689 | self._set_font(font) | |
685 |
|
690 | |||
686 | def _increase_font_size(self): |
|
691 | def _increase_font_size(self): | |
687 | self.change_font_size(1) |
|
692 | self.change_font_size(1) | |
688 |
|
693 | |||
689 | def _decrease_font_size(self): |
|
694 | def _decrease_font_size(self): | |
690 | self.change_font_size(-1) |
|
695 | self.change_font_size(-1) | |
691 |
|
696 | |||
692 | def select_all(self): |
|
697 | def select_all(self): | |
693 | """ Selects all the text in the buffer. |
|
698 | """ Selects all the text in the buffer. | |
694 | """ |
|
699 | """ | |
695 | self._control.selectAll() |
|
700 | self._control.selectAll() | |
696 |
|
701 | |||
697 | def _get_tab_width(self): |
|
702 | def _get_tab_width(self): | |
698 | """ The width (in terms of space characters) for tab characters. |
|
703 | """ The width (in terms of space characters) for tab characters. | |
699 | """ |
|
704 | """ | |
700 | return self._tab_width |
|
705 | return self._tab_width | |
701 |
|
706 | |||
702 | def _set_tab_width(self, tab_width): |
|
707 | def _set_tab_width(self, tab_width): | |
703 | """ Sets the width (in terms of space characters) for tab characters. |
|
708 | """ Sets the width (in terms of space characters) for tab characters. | |
704 | """ |
|
709 | """ | |
705 | font_metrics = QtGui.QFontMetrics(self.font) |
|
710 | font_metrics = QtGui.QFontMetrics(self.font) | |
706 | self._control.setTabStopWidth(tab_width * font_metrics.width(' ')) |
|
711 | self._control.setTabStopWidth(tab_width * font_metrics.width(' ')) | |
707 |
|
712 | |||
708 | self._tab_width = tab_width |
|
713 | self._tab_width = tab_width | |
709 |
|
714 | |||
710 | tab_width = property(_get_tab_width, _set_tab_width) |
|
715 | tab_width = property(_get_tab_width, _set_tab_width) | |
711 |
|
716 | |||
712 | def undo(self): |
|
717 | def undo(self): | |
713 | """ Undo the last operation. If there is no operation to undo, nothing |
|
718 | """ Undo the last operation. If there is no operation to undo, nothing | |
714 | happens. |
|
719 | happens. | |
715 | """ |
|
720 | """ | |
716 | self._control.undo() |
|
721 | self._control.undo() | |
717 |
|
722 | |||
718 | #--------------------------------------------------------------------------- |
|
723 | #--------------------------------------------------------------------------- | |
719 | # 'ConsoleWidget' abstract interface |
|
724 | # 'ConsoleWidget' abstract interface | |
720 | #--------------------------------------------------------------------------- |
|
725 | #--------------------------------------------------------------------------- | |
721 |
|
726 | |||
722 | def _is_complete(self, source, interactive): |
|
727 | def _is_complete(self, source, interactive): | |
723 | """ Returns whether 'source' can be executed. When triggered by an |
|
728 | """ Returns whether 'source' can be executed. When triggered by an | |
724 | Enter/Return key press, 'interactive' is True; otherwise, it is |
|
729 | Enter/Return key press, 'interactive' is True; otherwise, it is | |
725 | False. |
|
730 | False. | |
726 | """ |
|
731 | """ | |
727 | raise NotImplementedError |
|
732 | raise NotImplementedError | |
728 |
|
733 | |||
729 | def _execute(self, source, hidden): |
|
734 | def _execute(self, source, hidden): | |
730 | """ Execute 'source'. If 'hidden', do not show any output. |
|
735 | """ Execute 'source'. If 'hidden', do not show any output. | |
731 | """ |
|
736 | """ | |
732 | raise NotImplementedError |
|
737 | raise NotImplementedError | |
733 |
|
738 | |||
734 | def _prompt_started_hook(self): |
|
739 | def _prompt_started_hook(self): | |
735 | """ Called immediately after a new prompt is displayed. |
|
740 | """ Called immediately after a new prompt is displayed. | |
736 | """ |
|
741 | """ | |
737 | pass |
|
742 | pass | |
738 |
|
743 | |||
739 | def _prompt_finished_hook(self): |
|
744 | def _prompt_finished_hook(self): | |
740 | """ Called immediately after a prompt is finished, i.e. when some input |
|
745 | """ Called immediately after a prompt is finished, i.e. when some input | |
741 | will be processed and a new prompt displayed. |
|
746 | will be processed and a new prompt displayed. | |
742 | """ |
|
747 | """ | |
743 | pass |
|
748 | pass | |
744 |
|
749 | |||
745 | def _up_pressed(self, shift_modifier): |
|
750 | def _up_pressed(self, shift_modifier): | |
746 | """ Called when the up key is pressed. Returns whether to continue |
|
751 | """ Called when the up key is pressed. Returns whether to continue | |
747 | processing the event. |
|
752 | processing the event. | |
748 | """ |
|
753 | """ | |
749 | return True |
|
754 | return True | |
750 |
|
755 | |||
751 | def _down_pressed(self, shift_modifier): |
|
756 | def _down_pressed(self, shift_modifier): | |
752 | """ Called when the down key is pressed. Returns whether to continue |
|
757 | """ Called when the down key is pressed. Returns whether to continue | |
753 | processing the event. |
|
758 | processing the event. | |
754 | """ |
|
759 | """ | |
755 | return True |
|
760 | return True | |
756 |
|
761 | |||
757 | def _tab_pressed(self): |
|
762 | def _tab_pressed(self): | |
758 | """ Called when the tab key is pressed. Returns whether to continue |
|
763 | """ Called when the tab key is pressed. Returns whether to continue | |
759 | processing the event. |
|
764 | processing the event. | |
760 | """ |
|
765 | """ | |
761 | return False |
|
766 | return False | |
762 |
|
767 | |||
763 | #-------------------------------------------------------------------------- |
|
768 | #-------------------------------------------------------------------------- | |
764 | # 'ConsoleWidget' protected interface |
|
769 | # 'ConsoleWidget' protected interface | |
765 | #-------------------------------------------------------------------------- |
|
770 | #-------------------------------------------------------------------------- | |
766 |
|
771 | |||
767 | def _append_custom(self, insert, input, before_prompt=False): |
|
772 | def _append_custom(self, insert, input, before_prompt=False): | |
768 | """ A low-level method for appending content to the end of the buffer. |
|
773 | """ A low-level method for appending content to the end of the buffer. | |
769 |
|
774 | |||
770 | If 'before_prompt' is enabled, the content will be inserted before the |
|
775 | If 'before_prompt' is enabled, the content will be inserted before the | |
771 | current prompt, if there is one. |
|
776 | current prompt, if there is one. | |
772 | """ |
|
777 | """ | |
773 | # Determine where to insert the content. |
|
778 | # Determine where to insert the content. | |
774 | cursor = self._control.textCursor() |
|
779 | cursor = self._control.textCursor() | |
775 | if before_prompt and not self._executing: |
|
780 | if before_prompt and not self._executing: | |
776 | cursor.setPosition(self._append_before_prompt_pos) |
|
781 | cursor.setPosition(self._append_before_prompt_pos) | |
777 | else: |
|
782 | else: | |
778 | cursor.movePosition(QtGui.QTextCursor.End) |
|
783 | cursor.movePosition(QtGui.QTextCursor.End) | |
779 | start_pos = cursor.position() |
|
784 | start_pos = cursor.position() | |
780 |
|
785 | |||
781 | # Perform the insertion. |
|
786 | # Perform the insertion. | |
782 | result = insert(cursor, input) |
|
787 | result = insert(cursor, input) | |
783 |
|
788 | |||
784 | # Adjust the prompt position if we have inserted before it. This is safe |
|
789 | # Adjust the prompt position if we have inserted before it. This is safe | |
785 | # because buffer truncation is disabled when not executing. |
|
790 | # because buffer truncation is disabled when not executing. | |
786 | if before_prompt and not self._executing: |
|
791 | if before_prompt and not self._executing: | |
787 | diff = cursor.position() - start_pos |
|
792 | diff = cursor.position() - start_pos | |
788 | self._append_before_prompt_pos += diff |
|
793 | self._append_before_prompt_pos += diff | |
789 | self._prompt_pos += diff |
|
794 | self._prompt_pos += diff | |
790 |
|
795 | |||
791 | return result |
|
796 | return result | |
792 |
|
797 | |||
793 | def _append_html(self, html, before_prompt=False): |
|
798 | def _append_html(self, html, before_prompt=False): | |
794 | """ Appends HTML at the end of the console buffer. |
|
799 | """ Appends HTML at the end of the console buffer. | |
795 | """ |
|
800 | """ | |
796 | self._append_custom(self._insert_html, html, before_prompt) |
|
801 | self._append_custom(self._insert_html, html, before_prompt) | |
797 |
|
802 | |||
798 | def _append_html_fetching_plain_text(self, html, before_prompt=False): |
|
803 | def _append_html_fetching_plain_text(self, html, before_prompt=False): | |
799 | """ Appends HTML, then returns the plain text version of it. |
|
804 | """ Appends HTML, then returns the plain text version of it. | |
800 | """ |
|
805 | """ | |
801 | return self._append_custom(self._insert_html_fetching_plain_text, |
|
806 | return self._append_custom(self._insert_html_fetching_plain_text, | |
802 | html, before_prompt) |
|
807 | html, before_prompt) | |
803 |
|
808 | |||
804 | def _append_plain_text(self, text, before_prompt=False): |
|
809 | def _append_plain_text(self, text, before_prompt=False): | |
805 | """ Appends plain text, processing ANSI codes if enabled. |
|
810 | """ Appends plain text, processing ANSI codes if enabled. | |
806 | """ |
|
811 | """ | |
807 | self._append_custom(self._insert_plain_text, text, before_prompt) |
|
812 | self._append_custom(self._insert_plain_text, text, before_prompt) | |
808 |
|
813 | |||
809 | def _cancel_text_completion(self): |
|
814 | def _cancel_text_completion(self): | |
810 | """ If text completion is progress, cancel it. |
|
815 | """ If text completion is progress, cancel it. | |
811 | """ |
|
816 | """ | |
812 | if self._text_completing_pos: |
|
817 | if self._text_completing_pos: | |
813 | self._clear_temporary_buffer() |
|
818 | self._clear_temporary_buffer() | |
814 | self._text_completing_pos = 0 |
|
819 | self._text_completing_pos = 0 | |
815 |
|
820 | |||
816 | def _clear_temporary_buffer(self): |
|
821 | def _clear_temporary_buffer(self): | |
817 | """ Clears the "temporary text" buffer, i.e. all the text following |
|
822 | """ Clears the "temporary text" buffer, i.e. all the text following | |
818 | the prompt region. |
|
823 | the prompt region. | |
819 | """ |
|
824 | """ | |
820 | # Select and remove all text below the input buffer. |
|
825 | # Select and remove all text below the input buffer. | |
821 | cursor = self._get_prompt_cursor() |
|
826 | cursor = self._get_prompt_cursor() | |
822 | prompt = self._continuation_prompt.lstrip() |
|
827 | prompt = self._continuation_prompt.lstrip() | |
823 | while cursor.movePosition(QtGui.QTextCursor.NextBlock): |
|
828 | while cursor.movePosition(QtGui.QTextCursor.NextBlock): | |
824 | temp_cursor = QtGui.QTextCursor(cursor) |
|
829 | temp_cursor = QtGui.QTextCursor(cursor) | |
825 | temp_cursor.select(QtGui.QTextCursor.BlockUnderCursor) |
|
830 | temp_cursor.select(QtGui.QTextCursor.BlockUnderCursor) | |
826 | text = temp_cursor.selection().toPlainText().lstrip() |
|
831 | text = temp_cursor.selection().toPlainText().lstrip() | |
827 | if not text.startswith(prompt): |
|
832 | if not text.startswith(prompt): | |
828 | break |
|
833 | break | |
829 | else: |
|
834 | else: | |
830 | # We've reached the end of the input buffer and no text follows. |
|
835 | # We've reached the end of the input buffer and no text follows. | |
831 | return |
|
836 | return | |
832 | cursor.movePosition(QtGui.QTextCursor.Left) # Grab the newline. |
|
837 | cursor.movePosition(QtGui.QTextCursor.Left) # Grab the newline. | |
833 | cursor.movePosition(QtGui.QTextCursor.End, |
|
838 | cursor.movePosition(QtGui.QTextCursor.End, | |
834 | QtGui.QTextCursor.KeepAnchor) |
|
839 | QtGui.QTextCursor.KeepAnchor) | |
835 | cursor.removeSelectedText() |
|
840 | cursor.removeSelectedText() | |
836 |
|
841 | |||
837 | # After doing this, we have no choice but to clear the undo/redo |
|
842 | # After doing this, we have no choice but to clear the undo/redo | |
838 | # history. Otherwise, the text is not "temporary" at all, because it |
|
843 | # history. Otherwise, the text is not "temporary" at all, because it | |
839 | # can be recalled with undo/redo. Unfortunately, Qt does not expose |
|
844 | # can be recalled with undo/redo. Unfortunately, Qt does not expose | |
840 | # fine-grained control to the undo/redo system. |
|
845 | # fine-grained control to the undo/redo system. | |
841 | if self._control.isUndoRedoEnabled(): |
|
846 | if self._control.isUndoRedoEnabled(): | |
842 | self._control.setUndoRedoEnabled(False) |
|
847 | self._control.setUndoRedoEnabled(False) | |
843 | self._control.setUndoRedoEnabled(True) |
|
848 | self._control.setUndoRedoEnabled(True) | |
844 |
|
849 | |||
845 | def _complete_with_items(self, cursor, items): |
|
850 | def _complete_with_items(self, cursor, items): | |
846 | """ Performs completion with 'items' at the specified cursor location. |
|
851 | """ Performs completion with 'items' at the specified cursor location. | |
847 | """ |
|
852 | """ | |
848 | self._cancel_text_completion() |
|
853 | self._cancel_text_completion() | |
849 |
|
854 | |||
850 | if len(items) == 1: |
|
855 | if len(items) == 1: | |
851 | cursor.setPosition(self._control.textCursor().position(), |
|
856 | cursor.setPosition(self._control.textCursor().position(), | |
852 | QtGui.QTextCursor.KeepAnchor) |
|
857 | QtGui.QTextCursor.KeepAnchor) | |
853 | cursor.insertText(items[0]) |
|
858 | cursor.insertText(items[0]) | |
854 |
|
859 | |||
855 | elif len(items) > 1: |
|
860 | elif len(items) > 1: | |
856 | current_pos = self._control.textCursor().position() |
|
861 | current_pos = self._control.textCursor().position() | |
857 | prefix = commonprefix(items) |
|
862 | prefix = commonprefix(items) | |
858 | if prefix: |
|
863 | if prefix: | |
859 | cursor.setPosition(current_pos, QtGui.QTextCursor.KeepAnchor) |
|
864 | cursor.setPosition(current_pos, QtGui.QTextCursor.KeepAnchor) | |
860 | cursor.insertText(prefix) |
|
865 | cursor.insertText(prefix) | |
861 | current_pos = cursor.position() |
|
866 | current_pos = cursor.position() | |
862 |
|
867 | |||
863 | if self.gui_completion: |
|
868 | if self.gui_completion: | |
864 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(prefix)) |
|
869 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(prefix)) | |
865 | self._completion_widget.show_items(cursor, items) |
|
870 | self._completion_widget.show_items(cursor, items) | |
866 | else: |
|
871 | else: | |
867 | cursor.beginEditBlock() |
|
872 | cursor.beginEditBlock() | |
868 | self._append_plain_text('\n') |
|
873 | self._append_plain_text('\n') | |
869 | self._page(self._format_as_columns(items)) |
|
874 | self._page(self._format_as_columns(items)) | |
870 | cursor.endEditBlock() |
|
875 | cursor.endEditBlock() | |
871 |
|
876 | |||
872 | cursor.setPosition(current_pos) |
|
877 | cursor.setPosition(current_pos) | |
873 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
878 | self._control.moveCursor(QtGui.QTextCursor.End) | |
874 | self._control.setTextCursor(cursor) |
|
879 | self._control.setTextCursor(cursor) | |
875 | self._text_completing_pos = current_pos |
|
880 | self._text_completing_pos = current_pos | |
876 |
|
881 | |||
877 | def _context_menu_make(self, pos): |
|
882 | def _context_menu_make(self, pos): | |
878 | """ Creates a context menu for the given QPoint (in widget coordinates). |
|
883 | """ Creates a context menu for the given QPoint (in widget coordinates). | |
879 | """ |
|
884 | """ | |
880 | menu = QtGui.QMenu(self) |
|
885 | menu = QtGui.QMenu(self) | |
881 |
|
886 | |||
882 | self.cut_action = menu.addAction('Cut', self.cut) |
|
887 | self.cut_action = menu.addAction('Cut', self.cut) | |
883 | self.cut_action.setEnabled(self.can_cut()) |
|
888 | self.cut_action.setEnabled(self.can_cut()) | |
884 | self.cut_action.setShortcut(QtGui.QKeySequence.Cut) |
|
889 | self.cut_action.setShortcut(QtGui.QKeySequence.Cut) | |
885 |
|
890 | |||
886 | self.copy_action = menu.addAction('Copy', self.copy) |
|
891 | self.copy_action = menu.addAction('Copy', self.copy) | |
887 | self.copy_action.setEnabled(self.can_copy()) |
|
892 | self.copy_action.setEnabled(self.can_copy()) | |
888 | self.copy_action.setShortcut(QtGui.QKeySequence.Copy) |
|
893 | self.copy_action.setShortcut(QtGui.QKeySequence.Copy) | |
889 |
|
894 | |||
890 | self.paste_action = menu.addAction('Paste', self.paste) |
|
895 | self.paste_action = menu.addAction('Paste', self.paste) | |
891 | self.paste_action.setEnabled(self.can_paste()) |
|
896 | self.paste_action.setEnabled(self.can_paste()) | |
892 | self.paste_action.setShortcut(QtGui.QKeySequence.Paste) |
|
897 | self.paste_action.setShortcut(QtGui.QKeySequence.Paste) | |
893 |
|
898 | |||
894 | menu.addSeparator() |
|
899 | menu.addSeparator() | |
895 | menu.addAction(self.select_all_action) |
|
900 | menu.addAction(self.select_all_action) | |
896 |
|
901 | |||
897 | menu.addSeparator() |
|
902 | menu.addSeparator() | |
898 | menu.addAction(self.export_action) |
|
903 | menu.addAction(self.export_action) | |
899 | menu.addAction(self.print_action) |
|
904 | menu.addAction(self.print_action) | |
900 |
|
905 | |||
901 | return menu |
|
906 | return menu | |
902 |
|
907 | |||
903 | def _control_key_down(self, modifiers, include_command=False): |
|
908 | def _control_key_down(self, modifiers, include_command=False): | |
904 | """ Given a KeyboardModifiers flags object, return whether the Control |
|
909 | """ Given a KeyboardModifiers flags object, return whether the Control | |
905 | key is down. |
|
910 | key is down. | |
906 |
|
911 | |||
907 | Parameters: |
|
912 | Parameters: | |
908 | ----------- |
|
913 | ----------- | |
909 | include_command : bool, optional (default True) |
|
914 | include_command : bool, optional (default True) | |
910 | Whether to treat the Command key as a (mutually exclusive) synonym |
|
915 | Whether to treat the Command key as a (mutually exclusive) synonym | |
911 | for Control when in Mac OS. |
|
916 | for Control when in Mac OS. | |
912 | """ |
|
917 | """ | |
913 | # Note that on Mac OS, ControlModifier corresponds to the Command key |
|
918 | # Note that on Mac OS, ControlModifier corresponds to the Command key | |
914 | # while MetaModifier corresponds to the Control key. |
|
919 | # while MetaModifier corresponds to the Control key. | |
915 | if sys.platform == 'darwin': |
|
920 | if sys.platform == 'darwin': | |
916 | down = include_command and (modifiers & QtCore.Qt.ControlModifier) |
|
921 | down = include_command and (modifiers & QtCore.Qt.ControlModifier) | |
917 | return bool(down) ^ bool(modifiers & QtCore.Qt.MetaModifier) |
|
922 | return bool(down) ^ bool(modifiers & QtCore.Qt.MetaModifier) | |
918 | else: |
|
923 | else: | |
919 | return bool(modifiers & QtCore.Qt.ControlModifier) |
|
924 | return bool(modifiers & QtCore.Qt.ControlModifier) | |
920 |
|
925 | |||
921 | def _create_control(self): |
|
926 | def _create_control(self): | |
922 | """ Creates and connects the underlying text widget. |
|
927 | """ Creates and connects the underlying text widget. | |
923 | """ |
|
928 | """ | |
924 | # Create the underlying control. |
|
929 | # Create the underlying control. | |
925 | if self.kind == 'plain': |
|
930 | if self.kind == 'plain': | |
926 | control = QtGui.QPlainTextEdit() |
|
931 | control = QtGui.QPlainTextEdit() | |
927 | elif self.kind == 'rich': |
|
932 | elif self.kind == 'rich': | |
928 | control = QtGui.QTextEdit() |
|
933 | control = QtGui.QTextEdit() | |
929 | control.setAcceptRichText(False) |
|
934 | control.setAcceptRichText(False) | |
930 |
|
935 | |||
931 | # Install event filters. The filter on the viewport is needed for |
|
936 | # Install event filters. The filter on the viewport is needed for | |
932 | # mouse events and drag events. |
|
937 | # mouse events and drag events. | |
933 | control.installEventFilter(self) |
|
938 | control.installEventFilter(self) | |
934 | control.viewport().installEventFilter(self) |
|
939 | control.viewport().installEventFilter(self) | |
935 |
|
940 | |||
936 | # Connect signals. |
|
941 | # Connect signals. | |
937 | control.cursorPositionChanged.connect(self._cursor_position_changed) |
|
942 | control.cursorPositionChanged.connect(self._cursor_position_changed) | |
938 | control.customContextMenuRequested.connect( |
|
943 | control.customContextMenuRequested.connect( | |
939 | self._custom_context_menu_requested) |
|
944 | self._custom_context_menu_requested) | |
940 | control.copyAvailable.connect(self.copy_available) |
|
945 | control.copyAvailable.connect(self.copy_available) | |
941 | control.redoAvailable.connect(self.redo_available) |
|
946 | control.redoAvailable.connect(self.redo_available) | |
942 | control.undoAvailable.connect(self.undo_available) |
|
947 | control.undoAvailable.connect(self.undo_available) | |
943 |
|
948 | |||
944 | # Hijack the document size change signal to prevent Qt from adjusting |
|
949 | # Hijack the document size change signal to prevent Qt from adjusting | |
945 | # the viewport's scrollbar. We are relying on an implementation detail |
|
950 | # the viewport's scrollbar. We are relying on an implementation detail | |
946 | # of Q(Plain)TextEdit here, which is potentially dangerous, but without |
|
951 | # of Q(Plain)TextEdit here, which is potentially dangerous, but without | |
947 | # this functionality we cannot create a nice terminal interface. |
|
952 | # this functionality we cannot create a nice terminal interface. | |
948 | layout = control.document().documentLayout() |
|
953 | layout = control.document().documentLayout() | |
949 | layout.documentSizeChanged.disconnect() |
|
954 | layout.documentSizeChanged.disconnect() | |
950 | layout.documentSizeChanged.connect(self._adjust_scrollbars) |
|
955 | layout.documentSizeChanged.connect(self._adjust_scrollbars) | |
951 |
|
956 | |||
952 | # Configure the control. |
|
957 | # Configure the control. | |
953 | control.setAttribute(QtCore.Qt.WA_InputMethodEnabled, True) |
|
958 | control.setAttribute(QtCore.Qt.WA_InputMethodEnabled, True) | |
954 | control.setContextMenuPolicy(QtCore.Qt.CustomContextMenu) |
|
959 | control.setContextMenuPolicy(QtCore.Qt.CustomContextMenu) | |
955 | control.setReadOnly(True) |
|
960 | control.setReadOnly(True) | |
956 | control.setUndoRedoEnabled(False) |
|
961 | control.setUndoRedoEnabled(False) | |
957 | control.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn) |
|
962 | control.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn) | |
958 | return control |
|
963 | return control | |
959 |
|
964 | |||
960 | def _create_page_control(self): |
|
965 | def _create_page_control(self): | |
961 | """ Creates and connects the underlying paging widget. |
|
966 | """ Creates and connects the underlying paging widget. | |
962 | """ |
|
967 | """ | |
963 | if self.kind == 'plain': |
|
968 | if self.kind == 'plain': | |
964 | control = QtGui.QPlainTextEdit() |
|
969 | control = QtGui.QPlainTextEdit() | |
965 | elif self.kind == 'rich': |
|
970 | elif self.kind == 'rich': | |
966 | control = QtGui.QTextEdit() |
|
971 | control = QtGui.QTextEdit() | |
967 | control.installEventFilter(self) |
|
972 | control.installEventFilter(self) | |
968 | control.setReadOnly(True) |
|
973 | control.setReadOnly(True) | |
969 | control.setUndoRedoEnabled(False) |
|
974 | control.setUndoRedoEnabled(False) | |
970 | control.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn) |
|
975 | control.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn) | |
971 | return control |
|
976 | return control | |
972 |
|
977 | |||
973 | def _event_filter_console_keypress(self, event): |
|
978 | def _event_filter_console_keypress(self, event): | |
974 | """ Filter key events for the underlying text widget to create a |
|
979 | """ Filter key events for the underlying text widget to create a | |
975 | console-like interface. |
|
980 | console-like interface. | |
976 | """ |
|
981 | """ | |
977 | intercepted = False |
|
982 | intercepted = False | |
978 | cursor = self._control.textCursor() |
|
983 | cursor = self._control.textCursor() | |
979 | position = cursor.position() |
|
984 | position = cursor.position() | |
980 | key = event.key() |
|
985 | key = event.key() | |
981 | ctrl_down = self._control_key_down(event.modifiers()) |
|
986 | ctrl_down = self._control_key_down(event.modifiers()) | |
982 | alt_down = event.modifiers() & QtCore.Qt.AltModifier |
|
987 | alt_down = event.modifiers() & QtCore.Qt.AltModifier | |
983 | shift_down = event.modifiers() & QtCore.Qt.ShiftModifier |
|
988 | shift_down = event.modifiers() & QtCore.Qt.ShiftModifier | |
984 |
|
989 | |||
985 | #------ Special sequences ---------------------------------------------- |
|
990 | #------ Special sequences ---------------------------------------------- | |
986 |
|
991 | |||
987 | if event.matches(QtGui.QKeySequence.Copy): |
|
992 | if event.matches(QtGui.QKeySequence.Copy): | |
988 | self.copy() |
|
993 | self.copy() | |
989 | intercepted = True |
|
994 | intercepted = True | |
990 |
|
995 | |||
991 | elif event.matches(QtGui.QKeySequence.Cut): |
|
996 | elif event.matches(QtGui.QKeySequence.Cut): | |
992 | self.cut() |
|
997 | self.cut() | |
993 | intercepted = True |
|
998 | intercepted = True | |
994 |
|
999 | |||
995 | elif event.matches(QtGui.QKeySequence.Paste): |
|
1000 | elif event.matches(QtGui.QKeySequence.Paste): | |
996 | self.paste() |
|
1001 | self.paste() | |
997 | intercepted = True |
|
1002 | intercepted = True | |
998 |
|
1003 | |||
999 | #------ Special modifier logic ----------------------------------------- |
|
1004 | #------ Special modifier logic ----------------------------------------- | |
1000 |
|
1005 | |||
1001 | elif key in (QtCore.Qt.Key_Return, QtCore.Qt.Key_Enter): |
|
1006 | elif key in (QtCore.Qt.Key_Return, QtCore.Qt.Key_Enter): | |
1002 | intercepted = True |
|
1007 | intercepted = True | |
1003 |
|
1008 | |||
1004 | # Special handling when tab completing in text mode. |
|
1009 | # Special handling when tab completing in text mode. | |
1005 | self._cancel_text_completion() |
|
1010 | self._cancel_text_completion() | |
1006 |
|
1011 | |||
1007 | if self._in_buffer(position): |
|
1012 | if self._in_buffer(position): | |
1008 | # Special handling when a reading a line of raw input. |
|
1013 | # Special handling when a reading a line of raw input. | |
1009 | if self._reading: |
|
1014 | if self._reading: | |
1010 | self._append_plain_text('\n') |
|
1015 | self._append_plain_text('\n') | |
1011 | self._reading = False |
|
1016 | self._reading = False | |
1012 | if self._reading_callback: |
|
1017 | if self._reading_callback: | |
1013 | self._reading_callback() |
|
1018 | self._reading_callback() | |
1014 |
|
1019 | |||
1015 | # If the input buffer is a single line or there is only |
|
1020 | # If the input buffer is a single line or there is only | |
1016 | # whitespace after the cursor, execute. Otherwise, split the |
|
1021 | # whitespace after the cursor, execute. Otherwise, split the | |
1017 | # line with a continuation prompt. |
|
1022 | # line with a continuation prompt. | |
1018 | elif not self._executing: |
|
1023 | elif not self._executing: | |
1019 | cursor.movePosition(QtGui.QTextCursor.End, |
|
1024 | cursor.movePosition(QtGui.QTextCursor.End, | |
1020 | QtGui.QTextCursor.KeepAnchor) |
|
1025 | QtGui.QTextCursor.KeepAnchor) | |
1021 | at_end = len(cursor.selectedText().strip()) == 0 |
|
1026 | at_end = len(cursor.selectedText().strip()) == 0 | |
1022 | single_line = (self._get_end_cursor().blockNumber() == |
|
1027 | single_line = (self._get_end_cursor().blockNumber() == | |
1023 | self._get_prompt_cursor().blockNumber()) |
|
1028 | self._get_prompt_cursor().blockNumber()) | |
1024 | if (at_end or shift_down or single_line) and not ctrl_down: |
|
1029 | if (at_end or shift_down or single_line) and not ctrl_down: | |
1025 | self.execute(interactive = not shift_down) |
|
1030 | self.execute(interactive = not shift_down) | |
1026 | else: |
|
1031 | else: | |
1027 | # Do this inside an edit block for clean undo/redo. |
|
1032 | # Do this inside an edit block for clean undo/redo. | |
1028 | cursor.beginEditBlock() |
|
1033 | cursor.beginEditBlock() | |
1029 | cursor.setPosition(position) |
|
1034 | cursor.setPosition(position) | |
1030 | cursor.insertText('\n') |
|
1035 | cursor.insertText('\n') | |
1031 | self._insert_continuation_prompt(cursor) |
|
1036 | self._insert_continuation_prompt(cursor) | |
1032 | cursor.endEditBlock() |
|
1037 | cursor.endEditBlock() | |
1033 |
|
1038 | |||
1034 | # Ensure that the whole input buffer is visible. |
|
1039 | # Ensure that the whole input buffer is visible. | |
1035 | # FIXME: This will not be usable if the input buffer is |
|
1040 | # FIXME: This will not be usable if the input buffer is | |
1036 | # taller than the console widget. |
|
1041 | # taller than the console widget. | |
1037 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
1042 | self._control.moveCursor(QtGui.QTextCursor.End) | |
1038 | self._control.setTextCursor(cursor) |
|
1043 | self._control.setTextCursor(cursor) | |
1039 |
|
1044 | |||
1040 | #------ Control/Cmd modifier ------------------------------------------- |
|
1045 | #------ Control/Cmd modifier ------------------------------------------- | |
1041 |
|
1046 | |||
1042 | elif ctrl_down: |
|
1047 | elif ctrl_down: | |
1043 | if key == QtCore.Qt.Key_G: |
|
1048 | if key == QtCore.Qt.Key_G: | |
1044 | self._keyboard_quit() |
|
1049 | self._keyboard_quit() | |
1045 | intercepted = True |
|
1050 | intercepted = True | |
1046 |
|
1051 | |||
1047 | elif key == QtCore.Qt.Key_K: |
|
1052 | elif key == QtCore.Qt.Key_K: | |
1048 | if self._in_buffer(position): |
|
1053 | if self._in_buffer(position): | |
1049 | cursor.movePosition(QtGui.QTextCursor.EndOfLine, |
|
1054 | cursor.movePosition(QtGui.QTextCursor.EndOfLine, | |
1050 | QtGui.QTextCursor.KeepAnchor) |
|
1055 | QtGui.QTextCursor.KeepAnchor) | |
1051 | if not cursor.hasSelection(): |
|
1056 | if not cursor.hasSelection(): | |
1052 | # Line deletion (remove continuation prompt) |
|
1057 | # Line deletion (remove continuation prompt) | |
1053 | cursor.movePosition(QtGui.QTextCursor.NextBlock, |
|
1058 | cursor.movePosition(QtGui.QTextCursor.NextBlock, | |
1054 | QtGui.QTextCursor.KeepAnchor) |
|
1059 | QtGui.QTextCursor.KeepAnchor) | |
1055 | cursor.movePosition(QtGui.QTextCursor.Right, |
|
1060 | cursor.movePosition(QtGui.QTextCursor.Right, | |
1056 | QtGui.QTextCursor.KeepAnchor, |
|
1061 | QtGui.QTextCursor.KeepAnchor, | |
1057 | len(self._continuation_prompt)) |
|
1062 | len(self._continuation_prompt)) | |
1058 | self._kill_ring.kill_cursor(cursor) |
|
1063 | self._kill_ring.kill_cursor(cursor) | |
1059 | intercepted = True |
|
1064 | intercepted = True | |
1060 |
|
1065 | |||
1061 | elif key == QtCore.Qt.Key_L: |
|
1066 | elif key == QtCore.Qt.Key_L: | |
1062 | self.prompt_to_top() |
|
1067 | self.prompt_to_top() | |
1063 | intercepted = True |
|
1068 | intercepted = True | |
1064 |
|
1069 | |||
1065 | elif key == QtCore.Qt.Key_O: |
|
1070 | elif key == QtCore.Qt.Key_O: | |
1066 | if self._page_control and self._page_control.isVisible(): |
|
1071 | if self._page_control and self._page_control.isVisible(): | |
1067 | self._page_control.setFocus() |
|
1072 | self._page_control.setFocus() | |
1068 | intercepted = True |
|
1073 | intercepted = True | |
1069 |
|
1074 | |||
1070 | elif key == QtCore.Qt.Key_U: |
|
1075 | elif key == QtCore.Qt.Key_U: | |
1071 | if self._in_buffer(position): |
|
1076 | if self._in_buffer(position): | |
1072 | start_line = cursor.blockNumber() |
|
1077 | start_line = cursor.blockNumber() | |
1073 | if start_line == self._get_prompt_cursor().blockNumber(): |
|
1078 | if start_line == self._get_prompt_cursor().blockNumber(): | |
1074 | offset = len(self._prompt) |
|
1079 | offset = len(self._prompt) | |
1075 | else: |
|
1080 | else: | |
1076 | offset = len(self._continuation_prompt) |
|
1081 | offset = len(self._continuation_prompt) | |
1077 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, |
|
1082 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, | |
1078 | QtGui.QTextCursor.KeepAnchor) |
|
1083 | QtGui.QTextCursor.KeepAnchor) | |
1079 | cursor.movePosition(QtGui.QTextCursor.Right, |
|
1084 | cursor.movePosition(QtGui.QTextCursor.Right, | |
1080 | QtGui.QTextCursor.KeepAnchor, offset) |
|
1085 | QtGui.QTextCursor.KeepAnchor, offset) | |
1081 | self._kill_ring.kill_cursor(cursor) |
|
1086 | self._kill_ring.kill_cursor(cursor) | |
1082 | intercepted = True |
|
1087 | intercepted = True | |
1083 |
|
1088 | |||
1084 | elif key == QtCore.Qt.Key_Y: |
|
1089 | elif key == QtCore.Qt.Key_Y: | |
1085 | self._keep_cursor_in_buffer() |
|
1090 | self._keep_cursor_in_buffer() | |
1086 | self._kill_ring.yank() |
|
1091 | self._kill_ring.yank() | |
1087 | intercepted = True |
|
1092 | intercepted = True | |
1088 |
|
1093 | |||
1089 | elif key in (QtCore.Qt.Key_Backspace, QtCore.Qt.Key_Delete): |
|
1094 | elif key in (QtCore.Qt.Key_Backspace, QtCore.Qt.Key_Delete): | |
1090 | if key == QtCore.Qt.Key_Backspace: |
|
1095 | if key == QtCore.Qt.Key_Backspace: | |
1091 | cursor = self._get_word_start_cursor(position) |
|
1096 | cursor = self._get_word_start_cursor(position) | |
1092 | else: # key == QtCore.Qt.Key_Delete |
|
1097 | else: # key == QtCore.Qt.Key_Delete | |
1093 | cursor = self._get_word_end_cursor(position) |
|
1098 | cursor = self._get_word_end_cursor(position) | |
1094 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) |
|
1099 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) | |
1095 | self._kill_ring.kill_cursor(cursor) |
|
1100 | self._kill_ring.kill_cursor(cursor) | |
1096 | intercepted = True |
|
1101 | intercepted = True | |
1097 |
|
1102 | |||
1098 | #------ Alt modifier --------------------------------------------------- |
|
1103 | #------ Alt modifier --------------------------------------------------- | |
1099 |
|
1104 | |||
1100 | elif alt_down: |
|
1105 | elif alt_down: | |
1101 | if key == QtCore.Qt.Key_B: |
|
1106 | if key == QtCore.Qt.Key_B: | |
1102 | self._set_cursor(self._get_word_start_cursor(position)) |
|
1107 | self._set_cursor(self._get_word_start_cursor(position)) | |
1103 | intercepted = True |
|
1108 | intercepted = True | |
1104 |
|
1109 | |||
1105 | elif key == QtCore.Qt.Key_F: |
|
1110 | elif key == QtCore.Qt.Key_F: | |
1106 | self._set_cursor(self._get_word_end_cursor(position)) |
|
1111 | self._set_cursor(self._get_word_end_cursor(position)) | |
1107 | intercepted = True |
|
1112 | intercepted = True | |
1108 |
|
1113 | |||
1109 | elif key == QtCore.Qt.Key_Y: |
|
1114 | elif key == QtCore.Qt.Key_Y: | |
1110 | self._kill_ring.rotate() |
|
1115 | self._kill_ring.rotate() | |
1111 | intercepted = True |
|
1116 | intercepted = True | |
1112 |
|
1117 | |||
1113 | elif key == QtCore.Qt.Key_Backspace: |
|
1118 | elif key == QtCore.Qt.Key_Backspace: | |
1114 | cursor = self._get_word_start_cursor(position) |
|
1119 | cursor = self._get_word_start_cursor(position) | |
1115 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) |
|
1120 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) | |
1116 | self._kill_ring.kill_cursor(cursor) |
|
1121 | self._kill_ring.kill_cursor(cursor) | |
1117 | intercepted = True |
|
1122 | intercepted = True | |
1118 |
|
1123 | |||
1119 | elif key == QtCore.Qt.Key_D: |
|
1124 | elif key == QtCore.Qt.Key_D: | |
1120 | cursor = self._get_word_end_cursor(position) |
|
1125 | cursor = self._get_word_end_cursor(position) | |
1121 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) |
|
1126 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) | |
1122 | self._kill_ring.kill_cursor(cursor) |
|
1127 | self._kill_ring.kill_cursor(cursor) | |
1123 | intercepted = True |
|
1128 | intercepted = True | |
1124 |
|
1129 | |||
1125 | elif key == QtCore.Qt.Key_Delete: |
|
1130 | elif key == QtCore.Qt.Key_Delete: | |
1126 | intercepted = True |
|
1131 | intercepted = True | |
1127 |
|
1132 | |||
1128 | elif key == QtCore.Qt.Key_Greater: |
|
1133 | elif key == QtCore.Qt.Key_Greater: | |
1129 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
1134 | self._control.moveCursor(QtGui.QTextCursor.End) | |
1130 | intercepted = True |
|
1135 | intercepted = True | |
1131 |
|
1136 | |||
1132 | elif key == QtCore.Qt.Key_Less: |
|
1137 | elif key == QtCore.Qt.Key_Less: | |
1133 | self._control.setTextCursor(self._get_prompt_cursor()) |
|
1138 | self._control.setTextCursor(self._get_prompt_cursor()) | |
1134 | intercepted = True |
|
1139 | intercepted = True | |
1135 |
|
1140 | |||
1136 | #------ No modifiers --------------------------------------------------- |
|
1141 | #------ No modifiers --------------------------------------------------- | |
1137 |
|
1142 | |||
1138 | else: |
|
1143 | else: | |
1139 | if shift_down: |
|
1144 | if shift_down: | |
1140 | anchormode = QtGui.QTextCursor.KeepAnchor |
|
1145 | anchormode = QtGui.QTextCursor.KeepAnchor | |
1141 | else: |
|
1146 | else: | |
1142 | anchormode = QtGui.QTextCursor.MoveAnchor |
|
1147 | anchormode = QtGui.QTextCursor.MoveAnchor | |
1143 |
|
1148 | |||
1144 | if key == QtCore.Qt.Key_Escape: |
|
1149 | if key == QtCore.Qt.Key_Escape: | |
1145 | self._keyboard_quit() |
|
1150 | self._keyboard_quit() | |
1146 | intercepted = True |
|
1151 | intercepted = True | |
1147 |
|
1152 | |||
1148 | elif key == QtCore.Qt.Key_Up: |
|
1153 | elif key == QtCore.Qt.Key_Up: | |
1149 | if self._reading or not self._up_pressed(shift_down): |
|
1154 | if self._reading or not self._up_pressed(shift_down): | |
1150 | intercepted = True |
|
1155 | intercepted = True | |
1151 | else: |
|
1156 | else: | |
1152 | prompt_line = self._get_prompt_cursor().blockNumber() |
|
1157 | prompt_line = self._get_prompt_cursor().blockNumber() | |
1153 | intercepted = cursor.blockNumber() <= prompt_line |
|
1158 | intercepted = cursor.blockNumber() <= prompt_line | |
1154 |
|
1159 | |||
1155 | elif key == QtCore.Qt.Key_Down: |
|
1160 | elif key == QtCore.Qt.Key_Down: | |
1156 | if self._reading or not self._down_pressed(shift_down): |
|
1161 | if self._reading or not self._down_pressed(shift_down): | |
1157 | intercepted = True |
|
1162 | intercepted = True | |
1158 | else: |
|
1163 | else: | |
1159 | end_line = self._get_end_cursor().blockNumber() |
|
1164 | end_line = self._get_end_cursor().blockNumber() | |
1160 | intercepted = cursor.blockNumber() == end_line |
|
1165 | intercepted = cursor.blockNumber() == end_line | |
1161 |
|
1166 | |||
1162 | elif key == QtCore.Qt.Key_Tab: |
|
1167 | elif key == QtCore.Qt.Key_Tab: | |
1163 | if not self._reading: |
|
1168 | if not self._reading: | |
1164 | if self._tab_pressed(): |
|
1169 | if self._tab_pressed(): | |
1165 | # real tab-key, insert four spaces |
|
1170 | # real tab-key, insert four spaces | |
1166 | cursor.insertText(' '*4) |
|
1171 | cursor.insertText(' '*4) | |
1167 | intercepted = True |
|
1172 | intercepted = True | |
1168 |
|
1173 | |||
1169 | elif key == QtCore.Qt.Key_Left: |
|
1174 | elif key == QtCore.Qt.Key_Left: | |
1170 |
|
1175 | |||
1171 | # Move to the previous line |
|
1176 | # Move to the previous line | |
1172 | line, col = cursor.blockNumber(), cursor.columnNumber() |
|
1177 | line, col = cursor.blockNumber(), cursor.columnNumber() | |
1173 | if line > self._get_prompt_cursor().blockNumber() and \ |
|
1178 | if line > self._get_prompt_cursor().blockNumber() and \ | |
1174 | col == len(self._continuation_prompt): |
|
1179 | col == len(self._continuation_prompt): | |
1175 | self._control.moveCursor(QtGui.QTextCursor.PreviousBlock, |
|
1180 | self._control.moveCursor(QtGui.QTextCursor.PreviousBlock, | |
1176 | mode=anchormode) |
|
1181 | mode=anchormode) | |
1177 | self._control.moveCursor(QtGui.QTextCursor.EndOfBlock, |
|
1182 | self._control.moveCursor(QtGui.QTextCursor.EndOfBlock, | |
1178 | mode=anchormode) |
|
1183 | mode=anchormode) | |
1179 | intercepted = True |
|
1184 | intercepted = True | |
1180 |
|
1185 | |||
1181 | # Regular left movement |
|
1186 | # Regular left movement | |
1182 | else: |
|
1187 | else: | |
1183 | intercepted = not self._in_buffer(position - 1) |
|
1188 | intercepted = not self._in_buffer(position - 1) | |
1184 |
|
1189 | |||
1185 | elif key == QtCore.Qt.Key_Right: |
|
1190 | elif key == QtCore.Qt.Key_Right: | |
1186 | original_block_number = cursor.blockNumber() |
|
1191 | original_block_number = cursor.blockNumber() | |
1187 | cursor.movePosition(QtGui.QTextCursor.Right, |
|
1192 | cursor.movePosition(QtGui.QTextCursor.Right, | |
1188 | mode=anchormode) |
|
1193 | mode=anchormode) | |
1189 | if cursor.blockNumber() != original_block_number: |
|
1194 | if cursor.blockNumber() != original_block_number: | |
1190 | cursor.movePosition(QtGui.QTextCursor.Right, |
|
1195 | cursor.movePosition(QtGui.QTextCursor.Right, | |
1191 | n=len(self._continuation_prompt), |
|
1196 | n=len(self._continuation_prompt), | |
1192 | mode=anchormode) |
|
1197 | mode=anchormode) | |
1193 | self._set_cursor(cursor) |
|
1198 | self._set_cursor(cursor) | |
1194 | intercepted = True |
|
1199 | intercepted = True | |
1195 |
|
1200 | |||
1196 | elif key == QtCore.Qt.Key_Home: |
|
1201 | elif key == QtCore.Qt.Key_Home: | |
1197 | start_line = cursor.blockNumber() |
|
1202 | start_line = cursor.blockNumber() | |
1198 | if start_line == self._get_prompt_cursor().blockNumber(): |
|
1203 | if start_line == self._get_prompt_cursor().blockNumber(): | |
1199 | start_pos = self._prompt_pos |
|
1204 | start_pos = self._prompt_pos | |
1200 | else: |
|
1205 | else: | |
1201 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, |
|
1206 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, | |
1202 | QtGui.QTextCursor.KeepAnchor) |
|
1207 | QtGui.QTextCursor.KeepAnchor) | |
1203 | start_pos = cursor.position() |
|
1208 | start_pos = cursor.position() | |
1204 | start_pos += len(self._continuation_prompt) |
|
1209 | start_pos += len(self._continuation_prompt) | |
1205 | cursor.setPosition(position) |
|
1210 | cursor.setPosition(position) | |
1206 | if shift_down and self._in_buffer(position): |
|
1211 | if shift_down and self._in_buffer(position): | |
1207 | cursor.setPosition(start_pos, QtGui.QTextCursor.KeepAnchor) |
|
1212 | cursor.setPosition(start_pos, QtGui.QTextCursor.KeepAnchor) | |
1208 | else: |
|
1213 | else: | |
1209 | cursor.setPosition(start_pos) |
|
1214 | cursor.setPosition(start_pos) | |
1210 | self._set_cursor(cursor) |
|
1215 | self._set_cursor(cursor) | |
1211 | intercepted = True |
|
1216 | intercepted = True | |
1212 |
|
1217 | |||
1213 | elif key == QtCore.Qt.Key_Backspace: |
|
1218 | elif key == QtCore.Qt.Key_Backspace: | |
1214 |
|
1219 | |||
1215 | # Line deletion (remove continuation prompt) |
|
1220 | # Line deletion (remove continuation prompt) | |
1216 | line, col = cursor.blockNumber(), cursor.columnNumber() |
|
1221 | line, col = cursor.blockNumber(), cursor.columnNumber() | |
1217 | if not self._reading and \ |
|
1222 | if not self._reading and \ | |
1218 | col == len(self._continuation_prompt) and \ |
|
1223 | col == len(self._continuation_prompt) and \ | |
1219 | line > self._get_prompt_cursor().blockNumber(): |
|
1224 | line > self._get_prompt_cursor().blockNumber(): | |
1220 | cursor.beginEditBlock() |
|
1225 | cursor.beginEditBlock() | |
1221 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, |
|
1226 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, | |
1222 | QtGui.QTextCursor.KeepAnchor) |
|
1227 | QtGui.QTextCursor.KeepAnchor) | |
1223 | cursor.removeSelectedText() |
|
1228 | cursor.removeSelectedText() | |
1224 | cursor.deletePreviousChar() |
|
1229 | cursor.deletePreviousChar() | |
1225 | cursor.endEditBlock() |
|
1230 | cursor.endEditBlock() | |
1226 | intercepted = True |
|
1231 | intercepted = True | |
1227 |
|
1232 | |||
1228 | # Regular backwards deletion |
|
1233 | # Regular backwards deletion | |
1229 | else: |
|
1234 | else: | |
1230 | anchor = cursor.anchor() |
|
1235 | anchor = cursor.anchor() | |
1231 | if anchor == position: |
|
1236 | if anchor == position: | |
1232 | intercepted = not self._in_buffer(position - 1) |
|
1237 | intercepted = not self._in_buffer(position - 1) | |
1233 | else: |
|
1238 | else: | |
1234 | intercepted = not self._in_buffer(min(anchor, position)) |
|
1239 | intercepted = not self._in_buffer(min(anchor, position)) | |
1235 |
|
1240 | |||
1236 | elif key == QtCore.Qt.Key_Delete: |
|
1241 | elif key == QtCore.Qt.Key_Delete: | |
1237 |
|
1242 | |||
1238 | # Line deletion (remove continuation prompt) |
|
1243 | # Line deletion (remove continuation prompt) | |
1239 | if not self._reading and self._in_buffer(position) and \ |
|
1244 | if not self._reading and self._in_buffer(position) and \ | |
1240 | cursor.atBlockEnd() and not cursor.hasSelection(): |
|
1245 | cursor.atBlockEnd() and not cursor.hasSelection(): | |
1241 | cursor.movePosition(QtGui.QTextCursor.NextBlock, |
|
1246 | cursor.movePosition(QtGui.QTextCursor.NextBlock, | |
1242 | QtGui.QTextCursor.KeepAnchor) |
|
1247 | QtGui.QTextCursor.KeepAnchor) | |
1243 | cursor.movePosition(QtGui.QTextCursor.Right, |
|
1248 | cursor.movePosition(QtGui.QTextCursor.Right, | |
1244 | QtGui.QTextCursor.KeepAnchor, |
|
1249 | QtGui.QTextCursor.KeepAnchor, | |
1245 | len(self._continuation_prompt)) |
|
1250 | len(self._continuation_prompt)) | |
1246 | cursor.removeSelectedText() |
|
1251 | cursor.removeSelectedText() | |
1247 | intercepted = True |
|
1252 | intercepted = True | |
1248 |
|
1253 | |||
1249 | # Regular forwards deletion: |
|
1254 | # Regular forwards deletion: | |
1250 | else: |
|
1255 | else: | |
1251 | anchor = cursor.anchor() |
|
1256 | anchor = cursor.anchor() | |
1252 | intercepted = (not self._in_buffer(anchor) or |
|
1257 | intercepted = (not self._in_buffer(anchor) or | |
1253 | not self._in_buffer(position)) |
|
1258 | not self._in_buffer(position)) | |
1254 |
|
1259 | |||
1255 | # Don't move the cursor if Control/Cmd is pressed to allow copy-paste |
|
1260 | # Don't move the cursor if Control/Cmd is pressed to allow copy-paste | |
1256 | # using the keyboard in any part of the buffer. Also, permit scrolling |
|
1261 | # using the keyboard in any part of the buffer. Also, permit scrolling | |
1257 | # with Page Up/Down keys. Finally, if we're executing, don't move the |
|
1262 | # with Page Up/Down keys. Finally, if we're executing, don't move the | |
1258 | # cursor (if even this made sense, we can't guarantee that the prompt |
|
1263 | # cursor (if even this made sense, we can't guarantee that the prompt | |
1259 | # position is still valid due to text truncation). |
|
1264 | # position is still valid due to text truncation). | |
1260 | if not (self._control_key_down(event.modifiers(), include_command=True) |
|
1265 | if not (self._control_key_down(event.modifiers(), include_command=True) | |
1261 | or key in (QtCore.Qt.Key_PageUp, QtCore.Qt.Key_PageDown) |
|
1266 | or key in (QtCore.Qt.Key_PageUp, QtCore.Qt.Key_PageDown) | |
1262 | or (self._executing and not self._reading)): |
|
1267 | or (self._executing and not self._reading)): | |
1263 | self._keep_cursor_in_buffer() |
|
1268 | self._keep_cursor_in_buffer() | |
1264 |
|
1269 | |||
1265 | return intercepted |
|
1270 | return intercepted | |
1266 |
|
1271 | |||
1267 | def _event_filter_page_keypress(self, event): |
|
1272 | def _event_filter_page_keypress(self, event): | |
1268 | """ Filter key events for the paging widget to create console-like |
|
1273 | """ Filter key events for the paging widget to create console-like | |
1269 | interface. |
|
1274 | interface. | |
1270 | """ |
|
1275 | """ | |
1271 | key = event.key() |
|
1276 | key = event.key() | |
1272 | ctrl_down = self._control_key_down(event.modifiers()) |
|
1277 | ctrl_down = self._control_key_down(event.modifiers()) | |
1273 | alt_down = event.modifiers() & QtCore.Qt.AltModifier |
|
1278 | alt_down = event.modifiers() & QtCore.Qt.AltModifier | |
1274 |
|
1279 | |||
1275 | if ctrl_down: |
|
1280 | if ctrl_down: | |
1276 | if key == QtCore.Qt.Key_O: |
|
1281 | if key == QtCore.Qt.Key_O: | |
1277 | self._control.setFocus() |
|
1282 | self._control.setFocus() | |
1278 | intercept = True |
|
1283 | intercept = True | |
1279 |
|
1284 | |||
1280 | elif alt_down: |
|
1285 | elif alt_down: | |
1281 | if key == QtCore.Qt.Key_Greater: |
|
1286 | if key == QtCore.Qt.Key_Greater: | |
1282 | self._page_control.moveCursor(QtGui.QTextCursor.End) |
|
1287 | self._page_control.moveCursor(QtGui.QTextCursor.End) | |
1283 | intercepted = True |
|
1288 | intercepted = True | |
1284 |
|
1289 | |||
1285 | elif key == QtCore.Qt.Key_Less: |
|
1290 | elif key == QtCore.Qt.Key_Less: | |
1286 | self._page_control.moveCursor(QtGui.QTextCursor.Start) |
|
1291 | self._page_control.moveCursor(QtGui.QTextCursor.Start) | |
1287 | intercepted = True |
|
1292 | intercepted = True | |
1288 |
|
1293 | |||
1289 | elif key in (QtCore.Qt.Key_Q, QtCore.Qt.Key_Escape): |
|
1294 | elif key in (QtCore.Qt.Key_Q, QtCore.Qt.Key_Escape): | |
1290 | if self._splitter: |
|
1295 | if self._splitter: | |
1291 | self._page_control.hide() |
|
1296 | self._page_control.hide() | |
1292 | self._control.setFocus() |
|
1297 | self._control.setFocus() | |
1293 | else: |
|
1298 | else: | |
1294 | self.layout().setCurrentWidget(self._control) |
|
1299 | self.layout().setCurrentWidget(self._control) | |
1295 | return True |
|
1300 | return True | |
1296 |
|
1301 | |||
1297 | elif key in (QtCore.Qt.Key_Enter, QtCore.Qt.Key_Return, |
|
1302 | elif key in (QtCore.Qt.Key_Enter, QtCore.Qt.Key_Return, | |
1298 | QtCore.Qt.Key_Tab): |
|
1303 | QtCore.Qt.Key_Tab): | |
1299 | new_event = QtGui.QKeyEvent(QtCore.QEvent.KeyPress, |
|
1304 | new_event = QtGui.QKeyEvent(QtCore.QEvent.KeyPress, | |
1300 | QtCore.Qt.Key_PageDown, |
|
1305 | QtCore.Qt.Key_PageDown, | |
1301 | QtCore.Qt.NoModifier) |
|
1306 | QtCore.Qt.NoModifier) | |
1302 | QtGui.qApp.sendEvent(self._page_control, new_event) |
|
1307 | QtGui.qApp.sendEvent(self._page_control, new_event) | |
1303 | return True |
|
1308 | return True | |
1304 |
|
1309 | |||
1305 | elif key == QtCore.Qt.Key_Backspace: |
|
1310 | elif key == QtCore.Qt.Key_Backspace: | |
1306 | new_event = QtGui.QKeyEvent(QtCore.QEvent.KeyPress, |
|
1311 | new_event = QtGui.QKeyEvent(QtCore.QEvent.KeyPress, | |
1307 | QtCore.Qt.Key_PageUp, |
|
1312 | QtCore.Qt.Key_PageUp, | |
1308 | QtCore.Qt.NoModifier) |
|
1313 | QtCore.Qt.NoModifier) | |
1309 | QtGui.qApp.sendEvent(self._page_control, new_event) |
|
1314 | QtGui.qApp.sendEvent(self._page_control, new_event) | |
1310 | return True |
|
1315 | return True | |
1311 |
|
1316 | |||
1312 | return False |
|
1317 | return False | |
1313 |
|
1318 | |||
1314 | def _format_as_columns(self, items, separator=' '): |
|
1319 | def _format_as_columns(self, items, separator=' '): | |
1315 | """ Transform a list of strings into a single string with columns. |
|
1320 | """ Transform a list of strings into a single string with columns. | |
1316 |
|
1321 | |||
1317 | Parameters |
|
1322 | Parameters | |
1318 | ---------- |
|
1323 | ---------- | |
1319 | items : sequence of strings |
|
1324 | items : sequence of strings | |
1320 | The strings to process. |
|
1325 | The strings to process. | |
1321 |
|
1326 | |||
1322 | separator : str, optional [default is two spaces] |
|
1327 | separator : str, optional [default is two spaces] | |
1323 | The string that separates columns. |
|
1328 | The string that separates columns. | |
1324 |
|
1329 | |||
1325 | Returns |
|
1330 | Returns | |
1326 | ------- |
|
1331 | ------- | |
1327 | The formatted string. |
|
1332 | The formatted string. | |
1328 | """ |
|
1333 | """ | |
1329 | # Calculate the number of characters available. |
|
1334 | # Calculate the number of characters available. | |
1330 | width = self._control.viewport().width() |
|
1335 | width = self._control.viewport().width() | |
1331 | char_width = QtGui.QFontMetrics(self.font).width(' ') |
|
1336 | char_width = QtGui.QFontMetrics(self.font).width(' ') | |
1332 | displaywidth = max(10, (width / char_width) - 1) |
|
1337 | displaywidth = max(10, (width / char_width) - 1) | |
1333 |
|
1338 | |||
1334 | return columnize(items, separator, displaywidth) |
|
1339 | return columnize(items, separator, displaywidth) | |
1335 |
|
1340 | |||
1336 | def _get_block_plain_text(self, block): |
|
1341 | def _get_block_plain_text(self, block): | |
1337 | """ Given a QTextBlock, return its unformatted text. |
|
1342 | """ Given a QTextBlock, return its unformatted text. | |
1338 | """ |
|
1343 | """ | |
1339 | cursor = QtGui.QTextCursor(block) |
|
1344 | cursor = QtGui.QTextCursor(block) | |
1340 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock) |
|
1345 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock) | |
1341 | cursor.movePosition(QtGui.QTextCursor.EndOfBlock, |
|
1346 | cursor.movePosition(QtGui.QTextCursor.EndOfBlock, | |
1342 | QtGui.QTextCursor.KeepAnchor) |
|
1347 | QtGui.QTextCursor.KeepAnchor) | |
1343 | return cursor.selection().toPlainText() |
|
1348 | return cursor.selection().toPlainText() | |
1344 |
|
1349 | |||
1345 | def _get_cursor(self): |
|
1350 | def _get_cursor(self): | |
1346 | """ Convenience method that returns a cursor for the current position. |
|
1351 | """ Convenience method that returns a cursor for the current position. | |
1347 | """ |
|
1352 | """ | |
1348 | return self._control.textCursor() |
|
1353 | return self._control.textCursor() | |
1349 |
|
1354 | |||
1350 | def _get_end_cursor(self): |
|
1355 | def _get_end_cursor(self): | |
1351 | """ Convenience method that returns a cursor for the last character. |
|
1356 | """ Convenience method that returns a cursor for the last character. | |
1352 | """ |
|
1357 | """ | |
1353 | cursor = self._control.textCursor() |
|
1358 | cursor = self._control.textCursor() | |
1354 | cursor.movePosition(QtGui.QTextCursor.End) |
|
1359 | cursor.movePosition(QtGui.QTextCursor.End) | |
1355 | return cursor |
|
1360 | return cursor | |
1356 |
|
1361 | |||
1357 | def _get_input_buffer_cursor_column(self): |
|
1362 | def _get_input_buffer_cursor_column(self): | |
1358 | """ Returns the column of the cursor in the input buffer, excluding the |
|
1363 | """ Returns the column of the cursor in the input buffer, excluding the | |
1359 | contribution by the prompt, or -1 if there is no such column. |
|
1364 | contribution by the prompt, or -1 if there is no such column. | |
1360 | """ |
|
1365 | """ | |
1361 | prompt = self._get_input_buffer_cursor_prompt() |
|
1366 | prompt = self._get_input_buffer_cursor_prompt() | |
1362 | if prompt is None: |
|
1367 | if prompt is None: | |
1363 | return -1 |
|
1368 | return -1 | |
1364 | else: |
|
1369 | else: | |
1365 | cursor = self._control.textCursor() |
|
1370 | cursor = self._control.textCursor() | |
1366 | return cursor.columnNumber() - len(prompt) |
|
1371 | return cursor.columnNumber() - len(prompt) | |
1367 |
|
1372 | |||
1368 | def _get_input_buffer_cursor_line(self): |
|
1373 | def _get_input_buffer_cursor_line(self): | |
1369 | """ Returns the text of the line of the input buffer that contains the |
|
1374 | """ Returns the text of the line of the input buffer that contains the | |
1370 | cursor, or None if there is no such line. |
|
1375 | cursor, or None if there is no such line. | |
1371 | """ |
|
1376 | """ | |
1372 | prompt = self._get_input_buffer_cursor_prompt() |
|
1377 | prompt = self._get_input_buffer_cursor_prompt() | |
1373 | if prompt is None: |
|
1378 | if prompt is None: | |
1374 | return None |
|
1379 | return None | |
1375 | else: |
|
1380 | else: | |
1376 | cursor = self._control.textCursor() |
|
1381 | cursor = self._control.textCursor() | |
1377 | text = self._get_block_plain_text(cursor.block()) |
|
1382 | text = self._get_block_plain_text(cursor.block()) | |
1378 | return text[len(prompt):] |
|
1383 | return text[len(prompt):] | |
1379 |
|
1384 | |||
1380 | def _get_input_buffer_cursor_prompt(self): |
|
1385 | def _get_input_buffer_cursor_prompt(self): | |
1381 | """ Returns the (plain text) prompt for line of the input buffer that |
|
1386 | """ Returns the (plain text) prompt for line of the input buffer that | |
1382 | contains the cursor, or None if there is no such line. |
|
1387 | contains the cursor, or None if there is no such line. | |
1383 | """ |
|
1388 | """ | |
1384 | if self._executing: |
|
1389 | if self._executing: | |
1385 | return None |
|
1390 | return None | |
1386 | cursor = self._control.textCursor() |
|
1391 | cursor = self._control.textCursor() | |
1387 | if cursor.position() >= self._prompt_pos: |
|
1392 | if cursor.position() >= self._prompt_pos: | |
1388 | if cursor.blockNumber() == self._get_prompt_cursor().blockNumber(): |
|
1393 | if cursor.blockNumber() == self._get_prompt_cursor().blockNumber(): | |
1389 | return self._prompt |
|
1394 | return self._prompt | |
1390 | else: |
|
1395 | else: | |
1391 | return self._continuation_prompt |
|
1396 | return self._continuation_prompt | |
1392 | else: |
|
1397 | else: | |
1393 | return None |
|
1398 | return None | |
1394 |
|
1399 | |||
1395 | def _get_prompt_cursor(self): |
|
1400 | def _get_prompt_cursor(self): | |
1396 | """ Convenience method that returns a cursor for the prompt position. |
|
1401 | """ Convenience method that returns a cursor for the prompt position. | |
1397 | """ |
|
1402 | """ | |
1398 | cursor = self._control.textCursor() |
|
1403 | cursor = self._control.textCursor() | |
1399 | cursor.setPosition(self._prompt_pos) |
|
1404 | cursor.setPosition(self._prompt_pos) | |
1400 | return cursor |
|
1405 | return cursor | |
1401 |
|
1406 | |||
1402 | def _get_selection_cursor(self, start, end): |
|
1407 | def _get_selection_cursor(self, start, end): | |
1403 | """ Convenience method that returns a cursor with text selected between |
|
1408 | """ Convenience method that returns a cursor with text selected between | |
1404 | the positions 'start' and 'end'. |
|
1409 | the positions 'start' and 'end'. | |
1405 | """ |
|
1410 | """ | |
1406 | cursor = self._control.textCursor() |
|
1411 | cursor = self._control.textCursor() | |
1407 | cursor.setPosition(start) |
|
1412 | cursor.setPosition(start) | |
1408 | cursor.setPosition(end, QtGui.QTextCursor.KeepAnchor) |
|
1413 | cursor.setPosition(end, QtGui.QTextCursor.KeepAnchor) | |
1409 | return cursor |
|
1414 | return cursor | |
1410 |
|
1415 | |||
1411 | def _get_word_start_cursor(self, position): |
|
1416 | def _get_word_start_cursor(self, position): | |
1412 | """ Find the start of the word to the left the given position. If a |
|
1417 | """ Find the start of the word to the left the given position. If a | |
1413 | sequence of non-word characters precedes the first word, skip over |
|
1418 | sequence of non-word characters precedes the first word, skip over | |
1414 | them. (This emulates the behavior of bash, emacs, etc.) |
|
1419 | them. (This emulates the behavior of bash, emacs, etc.) | |
1415 | """ |
|
1420 | """ | |
1416 | document = self._control.document() |
|
1421 | document = self._control.document() | |
1417 | position -= 1 |
|
1422 | position -= 1 | |
1418 | while position >= self._prompt_pos and \ |
|
1423 | while position >= self._prompt_pos and \ | |
1419 | not is_letter_or_number(document.characterAt(position)): |
|
1424 | not is_letter_or_number(document.characterAt(position)): | |
1420 | position -= 1 |
|
1425 | position -= 1 | |
1421 | while position >= self._prompt_pos and \ |
|
1426 | while position >= self._prompt_pos and \ | |
1422 | is_letter_or_number(document.characterAt(position)): |
|
1427 | is_letter_or_number(document.characterAt(position)): | |
1423 | position -= 1 |
|
1428 | position -= 1 | |
1424 | cursor = self._control.textCursor() |
|
1429 | cursor = self._control.textCursor() | |
1425 | cursor.setPosition(position + 1) |
|
1430 | cursor.setPosition(position + 1) | |
1426 | return cursor |
|
1431 | return cursor | |
1427 |
|
1432 | |||
1428 | def _get_word_end_cursor(self, position): |
|
1433 | def _get_word_end_cursor(self, position): | |
1429 | """ Find the end of the word to the right the given position. If a |
|
1434 | """ Find the end of the word to the right the given position. If a | |
1430 | sequence of non-word characters precedes the first word, skip over |
|
1435 | sequence of non-word characters precedes the first word, skip over | |
1431 | them. (This emulates the behavior of bash, emacs, etc.) |
|
1436 | them. (This emulates the behavior of bash, emacs, etc.) | |
1432 | """ |
|
1437 | """ | |
1433 | document = self._control.document() |
|
1438 | document = self._control.document() | |
1434 | end = self._get_end_cursor().position() |
|
1439 | end = self._get_end_cursor().position() | |
1435 | while position < end and \ |
|
1440 | while position < end and \ | |
1436 | not is_letter_or_number(document.characterAt(position)): |
|
1441 | not is_letter_or_number(document.characterAt(position)): | |
1437 | position += 1 |
|
1442 | position += 1 | |
1438 | while position < end and \ |
|
1443 | while position < end and \ | |
1439 | is_letter_or_number(document.characterAt(position)): |
|
1444 | is_letter_or_number(document.characterAt(position)): | |
1440 | position += 1 |
|
1445 | position += 1 | |
1441 | cursor = self._control.textCursor() |
|
1446 | cursor = self._control.textCursor() | |
1442 | cursor.setPosition(position) |
|
1447 | cursor.setPosition(position) | |
1443 | return cursor |
|
1448 | return cursor | |
1444 |
|
1449 | |||
1445 | def _insert_continuation_prompt(self, cursor): |
|
1450 | def _insert_continuation_prompt(self, cursor): | |
1446 | """ Inserts new continuation prompt using the specified cursor. |
|
1451 | """ Inserts new continuation prompt using the specified cursor. | |
1447 | """ |
|
1452 | """ | |
1448 | if self._continuation_prompt_html is None: |
|
1453 | if self._continuation_prompt_html is None: | |
1449 | self._insert_plain_text(cursor, self._continuation_prompt) |
|
1454 | self._insert_plain_text(cursor, self._continuation_prompt) | |
1450 | else: |
|
1455 | else: | |
1451 | self._continuation_prompt = self._insert_html_fetching_plain_text( |
|
1456 | self._continuation_prompt = self._insert_html_fetching_plain_text( | |
1452 | cursor, self._continuation_prompt_html) |
|
1457 | cursor, self._continuation_prompt_html) | |
1453 |
|
1458 | |||
1454 | def _insert_html(self, cursor, html): |
|
1459 | def _insert_html(self, cursor, html): | |
1455 | """ Inserts HTML using the specified cursor in such a way that future |
|
1460 | """ Inserts HTML using the specified cursor in such a way that future | |
1456 | formatting is unaffected. |
|
1461 | formatting is unaffected. | |
1457 | """ |
|
1462 | """ | |
1458 | cursor.beginEditBlock() |
|
1463 | cursor.beginEditBlock() | |
1459 | cursor.insertHtml(html) |
|
1464 | cursor.insertHtml(html) | |
1460 |
|
1465 | |||
1461 | # After inserting HTML, the text document "remembers" it's in "html |
|
1466 | # After inserting HTML, the text document "remembers" it's in "html | |
1462 | # mode", which means that subsequent calls adding plain text will result |
|
1467 | # mode", which means that subsequent calls adding plain text will result | |
1463 | # in unwanted formatting, lost tab characters, etc. The following code |
|
1468 | # in unwanted formatting, lost tab characters, etc. The following code | |
1464 | # hacks around this behavior, which I consider to be a bug in Qt, by |
|
1469 | # hacks around this behavior, which I consider to be a bug in Qt, by | |
1465 | # (crudely) resetting the document's style state. |
|
1470 | # (crudely) resetting the document's style state. | |
1466 | cursor.movePosition(QtGui.QTextCursor.Left, |
|
1471 | cursor.movePosition(QtGui.QTextCursor.Left, | |
1467 | QtGui.QTextCursor.KeepAnchor) |
|
1472 | QtGui.QTextCursor.KeepAnchor) | |
1468 | if cursor.selection().toPlainText() == ' ': |
|
1473 | if cursor.selection().toPlainText() == ' ': | |
1469 | cursor.removeSelectedText() |
|
1474 | cursor.removeSelectedText() | |
1470 | else: |
|
1475 | else: | |
1471 | cursor.movePosition(QtGui.QTextCursor.Right) |
|
1476 | cursor.movePosition(QtGui.QTextCursor.Right) | |
1472 | cursor.insertText(' ', QtGui.QTextCharFormat()) |
|
1477 | cursor.insertText(' ', QtGui.QTextCharFormat()) | |
1473 | cursor.endEditBlock() |
|
1478 | cursor.endEditBlock() | |
1474 |
|
1479 | |||
1475 | def _insert_html_fetching_plain_text(self, cursor, html): |
|
1480 | def _insert_html_fetching_plain_text(self, cursor, html): | |
1476 | """ Inserts HTML using the specified cursor, then returns its plain text |
|
1481 | """ Inserts HTML using the specified cursor, then returns its plain text | |
1477 | version. |
|
1482 | version. | |
1478 | """ |
|
1483 | """ | |
1479 | cursor.beginEditBlock() |
|
1484 | cursor.beginEditBlock() | |
1480 | cursor.removeSelectedText() |
|
1485 | cursor.removeSelectedText() | |
1481 |
|
1486 | |||
1482 | start = cursor.position() |
|
1487 | start = cursor.position() | |
1483 | self._insert_html(cursor, html) |
|
1488 | self._insert_html(cursor, html) | |
1484 | end = cursor.position() |
|
1489 | end = cursor.position() | |
1485 | cursor.setPosition(start, QtGui.QTextCursor.KeepAnchor) |
|
1490 | cursor.setPosition(start, QtGui.QTextCursor.KeepAnchor) | |
1486 | text = cursor.selection().toPlainText() |
|
1491 | text = cursor.selection().toPlainText() | |
1487 |
|
1492 | |||
1488 | cursor.setPosition(end) |
|
1493 | cursor.setPosition(end) | |
1489 | cursor.endEditBlock() |
|
1494 | cursor.endEditBlock() | |
1490 | return text |
|
1495 | return text | |
1491 |
|
1496 | |||
1492 | def _insert_plain_text(self, cursor, text): |
|
1497 | def _insert_plain_text(self, cursor, text): | |
1493 | """ Inserts plain text using the specified cursor, processing ANSI codes |
|
1498 | """ Inserts plain text using the specified cursor, processing ANSI codes | |
1494 | if enabled. |
|
1499 | if enabled. | |
1495 | """ |
|
1500 | """ | |
1496 | cursor.beginEditBlock() |
|
1501 | cursor.beginEditBlock() | |
1497 | if self.ansi_codes: |
|
1502 | if self.ansi_codes: | |
1498 | for substring in self._ansi_processor.split_string(text): |
|
1503 | for substring in self._ansi_processor.split_string(text): | |
1499 | for act in self._ansi_processor.actions: |
|
1504 | for act in self._ansi_processor.actions: | |
1500 |
|
1505 | |||
1501 | # Unlike real terminal emulators, we don't distinguish |
|
1506 | # Unlike real terminal emulators, we don't distinguish | |
1502 | # between the screen and the scrollback buffer. A screen |
|
1507 | # between the screen and the scrollback buffer. A screen | |
1503 | # erase request clears everything. |
|
1508 | # erase request clears everything. | |
1504 | if act.action == 'erase' and act.area == 'screen': |
|
1509 | if act.action == 'erase' and act.area == 'screen': | |
1505 | cursor.select(QtGui.QTextCursor.Document) |
|
1510 | cursor.select(QtGui.QTextCursor.Document) | |
1506 | cursor.removeSelectedText() |
|
1511 | cursor.removeSelectedText() | |
1507 |
|
1512 | |||
1508 | # Simulate a form feed by scrolling just past the last line. |
|
1513 | # Simulate a form feed by scrolling just past the last line. | |
1509 | elif act.action == 'scroll' and act.unit == 'page': |
|
1514 | elif act.action == 'scroll' and act.unit == 'page': | |
1510 | cursor.insertText('\n') |
|
1515 | cursor.insertText('\n') | |
1511 | cursor.endEditBlock() |
|
1516 | cursor.endEditBlock() | |
1512 | self._set_top_cursor(cursor) |
|
1517 | self._set_top_cursor(cursor) | |
1513 | cursor.joinPreviousEditBlock() |
|
1518 | cursor.joinPreviousEditBlock() | |
1514 | cursor.deletePreviousChar() |
|
1519 | cursor.deletePreviousChar() | |
1515 |
|
1520 | |||
1516 | format = self._ansi_processor.get_format() |
|
1521 | format = self._ansi_processor.get_format() | |
1517 | cursor.insertText(substring, format) |
|
1522 | cursor.insertText(substring, format) | |
1518 | else: |
|
1523 | else: | |
1519 | cursor.insertText(text) |
|
1524 | cursor.insertText(text) | |
1520 | cursor.endEditBlock() |
|
1525 | cursor.endEditBlock() | |
1521 |
|
1526 | |||
1522 | def _insert_plain_text_into_buffer(self, cursor, text): |
|
1527 | def _insert_plain_text_into_buffer(self, cursor, text): | |
1523 | """ Inserts text into the input buffer using the specified cursor (which |
|
1528 | """ Inserts text into the input buffer using the specified cursor (which | |
1524 | must be in the input buffer), ensuring that continuation prompts are |
|
1529 | must be in the input buffer), ensuring that continuation prompts are | |
1525 | inserted as necessary. |
|
1530 | inserted as necessary. | |
1526 | """ |
|
1531 | """ | |
1527 | lines = text.splitlines(True) |
|
1532 | lines = text.splitlines(True) | |
1528 | if lines: |
|
1533 | if lines: | |
1529 | cursor.beginEditBlock() |
|
1534 | cursor.beginEditBlock() | |
1530 | cursor.insertText(lines[0]) |
|
1535 | cursor.insertText(lines[0]) | |
1531 | for line in lines[1:]: |
|
1536 | for line in lines[1:]: | |
1532 | if self._continuation_prompt_html is None: |
|
1537 | if self._continuation_prompt_html is None: | |
1533 | cursor.insertText(self._continuation_prompt) |
|
1538 | cursor.insertText(self._continuation_prompt) | |
1534 | else: |
|
1539 | else: | |
1535 | self._continuation_prompt = \ |
|
1540 | self._continuation_prompt = \ | |
1536 | self._insert_html_fetching_plain_text( |
|
1541 | self._insert_html_fetching_plain_text( | |
1537 | cursor, self._continuation_prompt_html) |
|
1542 | cursor, self._continuation_prompt_html) | |
1538 | cursor.insertText(line) |
|
1543 | cursor.insertText(line) | |
1539 | cursor.endEditBlock() |
|
1544 | cursor.endEditBlock() | |
1540 |
|
1545 | |||
1541 | def _in_buffer(self, position=None): |
|
1546 | def _in_buffer(self, position=None): | |
1542 | """ Returns whether the current cursor (or, if specified, a position) is |
|
1547 | """ Returns whether the current cursor (or, if specified, a position) is | |
1543 | inside the editing region. |
|
1548 | inside the editing region. | |
1544 | """ |
|
1549 | """ | |
1545 | cursor = self._control.textCursor() |
|
1550 | cursor = self._control.textCursor() | |
1546 | if position is None: |
|
1551 | if position is None: | |
1547 | position = cursor.position() |
|
1552 | position = cursor.position() | |
1548 | else: |
|
1553 | else: | |
1549 | cursor.setPosition(position) |
|
1554 | cursor.setPosition(position) | |
1550 | line = cursor.blockNumber() |
|
1555 | line = cursor.blockNumber() | |
1551 | prompt_line = self._get_prompt_cursor().blockNumber() |
|
1556 | prompt_line = self._get_prompt_cursor().blockNumber() | |
1552 | if line == prompt_line: |
|
1557 | if line == prompt_line: | |
1553 | return position >= self._prompt_pos |
|
1558 | return position >= self._prompt_pos | |
1554 | elif line > prompt_line: |
|
1559 | elif line > prompt_line: | |
1555 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock) |
|
1560 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock) | |
1556 | prompt_pos = cursor.position() + len(self._continuation_prompt) |
|
1561 | prompt_pos = cursor.position() + len(self._continuation_prompt) | |
1557 | return position >= prompt_pos |
|
1562 | return position >= prompt_pos | |
1558 | return False |
|
1563 | return False | |
1559 |
|
1564 | |||
1560 | def _keep_cursor_in_buffer(self): |
|
1565 | def _keep_cursor_in_buffer(self): | |
1561 | """ Ensures that the cursor is inside the editing region. Returns |
|
1566 | """ Ensures that the cursor is inside the editing region. Returns | |
1562 | whether the cursor was moved. |
|
1567 | whether the cursor was moved. | |
1563 | """ |
|
1568 | """ | |
1564 | moved = not self._in_buffer() |
|
1569 | moved = not self._in_buffer() | |
1565 | if moved: |
|
1570 | if moved: | |
1566 | cursor = self._control.textCursor() |
|
1571 | cursor = self._control.textCursor() | |
1567 | cursor.movePosition(QtGui.QTextCursor.End) |
|
1572 | cursor.movePosition(QtGui.QTextCursor.End) | |
1568 | self._control.setTextCursor(cursor) |
|
1573 | self._control.setTextCursor(cursor) | |
1569 | return moved |
|
1574 | return moved | |
1570 |
|
1575 | |||
1571 | def _keyboard_quit(self): |
|
1576 | def _keyboard_quit(self): | |
1572 | """ Cancels the current editing task ala Ctrl-G in Emacs. |
|
1577 | """ Cancels the current editing task ala Ctrl-G in Emacs. | |
1573 | """ |
|
1578 | """ | |
1574 | if self._text_completing_pos: |
|
1579 | if self._text_completing_pos: | |
1575 | self._cancel_text_completion() |
|
1580 | self._cancel_text_completion() | |
1576 | else: |
|
1581 | else: | |
1577 | self.input_buffer = '' |
|
1582 | self.input_buffer = '' | |
1578 |
|
1583 | |||
1579 | def _page(self, text, html=False): |
|
1584 | def _page(self, text, html=False): | |
1580 | """ Displays text using the pager if it exceeds the height of the |
|
1585 | """ Displays text using the pager if it exceeds the height of the | |
1581 | viewport. |
|
1586 | viewport. | |
1582 |
|
1587 | |||
1583 | Parameters: |
|
1588 | Parameters: | |
1584 | ----------- |
|
1589 | ----------- | |
1585 | html : bool, optional (default False) |
|
1590 | html : bool, optional (default False) | |
1586 | If set, the text will be interpreted as HTML instead of plain text. |
|
1591 | If set, the text will be interpreted as HTML instead of plain text. | |
1587 | """ |
|
1592 | """ | |
1588 | line_height = QtGui.QFontMetrics(self.font).height() |
|
1593 | line_height = QtGui.QFontMetrics(self.font).height() | |
1589 | minlines = self._control.viewport().height() / line_height |
|
1594 | minlines = self._control.viewport().height() / line_height | |
1590 | if self.paging != 'none' and \ |
|
1595 | if self.paging != 'none' and \ | |
1591 | re.match("(?:[^\n]*\n){%i}" % minlines, text): |
|
1596 | re.match("(?:[^\n]*\n){%i}" % minlines, text): | |
1592 | if self.paging == 'custom': |
|
1597 | if self.paging == 'custom': | |
1593 | self.custom_page_requested.emit(text) |
|
1598 | self.custom_page_requested.emit(text) | |
1594 | else: |
|
1599 | else: | |
1595 | self._page_control.clear() |
|
1600 | self._page_control.clear() | |
1596 | cursor = self._page_control.textCursor() |
|
1601 | cursor = self._page_control.textCursor() | |
1597 | if html: |
|
1602 | if html: | |
1598 | self._insert_html(cursor, text) |
|
1603 | self._insert_html(cursor, text) | |
1599 | else: |
|
1604 | else: | |
1600 | self._insert_plain_text(cursor, text) |
|
1605 | self._insert_plain_text(cursor, text) | |
1601 | self._page_control.moveCursor(QtGui.QTextCursor.Start) |
|
1606 | self._page_control.moveCursor(QtGui.QTextCursor.Start) | |
1602 |
|
1607 | |||
1603 | self._page_control.viewport().resize(self._control.size()) |
|
1608 | self._page_control.viewport().resize(self._control.size()) | |
1604 | if self._splitter: |
|
1609 | if self._splitter: | |
1605 | self._page_control.show() |
|
1610 | self._page_control.show() | |
1606 | self._page_control.setFocus() |
|
1611 | self._page_control.setFocus() | |
1607 | else: |
|
1612 | else: | |
1608 | self.layout().setCurrentWidget(self._page_control) |
|
1613 | self.layout().setCurrentWidget(self._page_control) | |
1609 | elif html: |
|
1614 | elif html: | |
1610 | self._append_plain_html(text) |
|
1615 | self._append_plain_html(text) | |
1611 | else: |
|
1616 | else: | |
1612 | self._append_plain_text(text) |
|
1617 | self._append_plain_text(text) | |
1613 |
|
1618 | |||
1614 | def _prompt_finished(self): |
|
1619 | def _prompt_finished(self): | |
1615 | """ Called immediately after a prompt is finished, i.e. when some input |
|
1620 | """ Called immediately after a prompt is finished, i.e. when some input | |
1616 | will be processed and a new prompt displayed. |
|
1621 | will be processed and a new prompt displayed. | |
1617 | """ |
|
1622 | """ | |
1618 | self._control.setReadOnly(True) |
|
1623 | self._control.setReadOnly(True) | |
1619 | self._prompt_finished_hook() |
|
1624 | self._prompt_finished_hook() | |
1620 |
|
1625 | |||
1621 | def _prompt_started(self): |
|
1626 | def _prompt_started(self): | |
1622 | """ Called immediately after a new prompt is displayed. |
|
1627 | """ Called immediately after a new prompt is displayed. | |
1623 | """ |
|
1628 | """ | |
1624 | # Temporarily disable the maximum block count to permit undo/redo and |
|
1629 | # Temporarily disable the maximum block count to permit undo/redo and | |
1625 | # to ensure that the prompt position does not change due to truncation. |
|
1630 | # to ensure that the prompt position does not change due to truncation. | |
1626 | self._control.document().setMaximumBlockCount(0) |
|
1631 | self._control.document().setMaximumBlockCount(0) | |
1627 | self._control.setUndoRedoEnabled(True) |
|
1632 | self._control.setUndoRedoEnabled(True) | |
1628 |
|
1633 | |||
1629 | # Work around bug in QPlainTextEdit: input method is not re-enabled |
|
1634 | # Work around bug in QPlainTextEdit: input method is not re-enabled | |
1630 | # when read-only is disabled. |
|
1635 | # when read-only is disabled. | |
1631 | self._control.setReadOnly(False) |
|
1636 | self._control.setReadOnly(False) | |
1632 | self._control.setAttribute(QtCore.Qt.WA_InputMethodEnabled, True) |
|
1637 | self._control.setAttribute(QtCore.Qt.WA_InputMethodEnabled, True) | |
1633 |
|
1638 | |||
1634 | if not self._reading: |
|
1639 | if not self._reading: | |
1635 | self._executing = False |
|
1640 | self._executing = False | |
1636 | self._prompt_started_hook() |
|
1641 | self._prompt_started_hook() | |
1637 |
|
1642 | |||
1638 | # If the input buffer has changed while executing, load it. |
|
1643 | # If the input buffer has changed while executing, load it. | |
1639 | if self._input_buffer_pending: |
|
1644 | if self._input_buffer_pending: | |
1640 | self.input_buffer = self._input_buffer_pending |
|
1645 | self.input_buffer = self._input_buffer_pending | |
1641 | self._input_buffer_pending = '' |
|
1646 | self._input_buffer_pending = '' | |
1642 |
|
1647 | |||
1643 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
1648 | self._control.moveCursor(QtGui.QTextCursor.End) | |
1644 |
|
1649 | |||
1645 | def _readline(self, prompt='', callback=None): |
|
1650 | def _readline(self, prompt='', callback=None): | |
1646 | """ Reads one line of input from the user. |
|
1651 | """ Reads one line of input from the user. | |
1647 |
|
1652 | |||
1648 | Parameters |
|
1653 | Parameters | |
1649 | ---------- |
|
1654 | ---------- | |
1650 | prompt : str, optional |
|
1655 | prompt : str, optional | |
1651 | The prompt to print before reading the line. |
|
1656 | The prompt to print before reading the line. | |
1652 |
|
1657 | |||
1653 | callback : callable, optional |
|
1658 | callback : callable, optional | |
1654 | A callback to execute with the read line. If not specified, input is |
|
1659 | A callback to execute with the read line. If not specified, input is | |
1655 | read *synchronously* and this method does not return until it has |
|
1660 | read *synchronously* and this method does not return until it has | |
1656 | been read. |
|
1661 | been read. | |
1657 |
|
1662 | |||
1658 | Returns |
|
1663 | Returns | |
1659 | ------- |
|
1664 | ------- | |
1660 | If a callback is specified, returns nothing. Otherwise, returns the |
|
1665 | If a callback is specified, returns nothing. Otherwise, returns the | |
1661 | input string with the trailing newline stripped. |
|
1666 | input string with the trailing newline stripped. | |
1662 | """ |
|
1667 | """ | |
1663 | if self._reading: |
|
1668 | if self._reading: | |
1664 | raise RuntimeError('Cannot read a line. Widget is already reading.') |
|
1669 | raise RuntimeError('Cannot read a line. Widget is already reading.') | |
1665 |
|
1670 | |||
1666 | if not callback and not self.isVisible(): |
|
1671 | if not callback and not self.isVisible(): | |
1667 | # If the user cannot see the widget, this function cannot return. |
|
1672 | # If the user cannot see the widget, this function cannot return. | |
1668 | raise RuntimeError('Cannot synchronously read a line if the widget ' |
|
1673 | raise RuntimeError('Cannot synchronously read a line if the widget ' | |
1669 | 'is not visible!') |
|
1674 | 'is not visible!') | |
1670 |
|
1675 | |||
1671 | self._reading = True |
|
1676 | self._reading = True | |
1672 | self._show_prompt(prompt, newline=False) |
|
1677 | self._show_prompt(prompt, newline=False) | |
1673 |
|
1678 | |||
1674 | if callback is None: |
|
1679 | if callback is None: | |
1675 | self._reading_callback = None |
|
1680 | self._reading_callback = None | |
1676 | while self._reading: |
|
1681 | while self._reading: | |
1677 | QtCore.QCoreApplication.processEvents() |
|
1682 | QtCore.QCoreApplication.processEvents() | |
1678 | return self._get_input_buffer(force=True).rstrip('\n') |
|
1683 | return self._get_input_buffer(force=True).rstrip('\n') | |
1679 |
|
1684 | |||
1680 | else: |
|
1685 | else: | |
1681 | self._reading_callback = lambda: \ |
|
1686 | self._reading_callback = lambda: \ | |
1682 | callback(self._get_input_buffer(force=True).rstrip('\n')) |
|
1687 | callback(self._get_input_buffer(force=True).rstrip('\n')) | |
1683 |
|
1688 | |||
1684 | def _set_continuation_prompt(self, prompt, html=False): |
|
1689 | def _set_continuation_prompt(self, prompt, html=False): | |
1685 | """ Sets the continuation prompt. |
|
1690 | """ Sets the continuation prompt. | |
1686 |
|
1691 | |||
1687 | Parameters |
|
1692 | Parameters | |
1688 | ---------- |
|
1693 | ---------- | |
1689 | prompt : str |
|
1694 | prompt : str | |
1690 | The prompt to show when more input is needed. |
|
1695 | The prompt to show when more input is needed. | |
1691 |
|
1696 | |||
1692 | html : bool, optional (default False) |
|
1697 | html : bool, optional (default False) | |
1693 | If set, the prompt will be inserted as formatted HTML. Otherwise, |
|
1698 | If set, the prompt will be inserted as formatted HTML. Otherwise, | |
1694 | the prompt will be treated as plain text, though ANSI color codes |
|
1699 | the prompt will be treated as plain text, though ANSI color codes | |
1695 | will be handled. |
|
1700 | will be handled. | |
1696 | """ |
|
1701 | """ | |
1697 | if html: |
|
1702 | if html: | |
1698 | self._continuation_prompt_html = prompt |
|
1703 | self._continuation_prompt_html = prompt | |
1699 | else: |
|
1704 | else: | |
1700 | self._continuation_prompt = prompt |
|
1705 | self._continuation_prompt = prompt | |
1701 | self._continuation_prompt_html = None |
|
1706 | self._continuation_prompt_html = None | |
1702 |
|
1707 | |||
1703 | def _set_cursor(self, cursor): |
|
1708 | def _set_cursor(self, cursor): | |
1704 | """ Convenience method to set the current cursor. |
|
1709 | """ Convenience method to set the current cursor. | |
1705 | """ |
|
1710 | """ | |
1706 | self._control.setTextCursor(cursor) |
|
1711 | self._control.setTextCursor(cursor) | |
1707 |
|
1712 | |||
1708 | def _set_top_cursor(self, cursor): |
|
1713 | def _set_top_cursor(self, cursor): | |
1709 | """ Scrolls the viewport so that the specified cursor is at the top. |
|
1714 | """ Scrolls the viewport so that the specified cursor is at the top. | |
1710 | """ |
|
1715 | """ | |
1711 | scrollbar = self._control.verticalScrollBar() |
|
1716 | scrollbar = self._control.verticalScrollBar() | |
1712 | scrollbar.setValue(scrollbar.maximum()) |
|
1717 | scrollbar.setValue(scrollbar.maximum()) | |
1713 | original_cursor = self._control.textCursor() |
|
1718 | original_cursor = self._control.textCursor() | |
1714 | self._control.setTextCursor(cursor) |
|
1719 | self._control.setTextCursor(cursor) | |
1715 | self._control.ensureCursorVisible() |
|
1720 | self._control.ensureCursorVisible() | |
1716 | self._control.setTextCursor(original_cursor) |
|
1721 | self._control.setTextCursor(original_cursor) | |
1717 |
|
1722 | |||
1718 | def _show_prompt(self, prompt=None, html=False, newline=True): |
|
1723 | def _show_prompt(self, prompt=None, html=False, newline=True): | |
1719 | """ Writes a new prompt at the end of the buffer. |
|
1724 | """ Writes a new prompt at the end of the buffer. | |
1720 |
|
1725 | |||
1721 | Parameters |
|
1726 | Parameters | |
1722 | ---------- |
|
1727 | ---------- | |
1723 | prompt : str, optional |
|
1728 | prompt : str, optional | |
1724 | The prompt to show. If not specified, the previous prompt is used. |
|
1729 | The prompt to show. If not specified, the previous prompt is used. | |
1725 |
|
1730 | |||
1726 | html : bool, optional (default False) |
|
1731 | html : bool, optional (default False) | |
1727 | Only relevant when a prompt is specified. If set, the prompt will |
|
1732 | Only relevant when a prompt is specified. If set, the prompt will | |
1728 | be inserted as formatted HTML. Otherwise, the prompt will be treated |
|
1733 | be inserted as formatted HTML. Otherwise, the prompt will be treated | |
1729 | as plain text, though ANSI color codes will be handled. |
|
1734 | as plain text, though ANSI color codes will be handled. | |
1730 |
|
1735 | |||
1731 | newline : bool, optional (default True) |
|
1736 | newline : bool, optional (default True) | |
1732 | If set, a new line will be written before showing the prompt if |
|
1737 | If set, a new line will be written before showing the prompt if | |
1733 | there is not already a newline at the end of the buffer. |
|
1738 | there is not already a newline at the end of the buffer. | |
1734 | """ |
|
1739 | """ | |
1735 | # Save the current end position to support _append*(before_prompt=True). |
|
1740 | # Save the current end position to support _append*(before_prompt=True). | |
1736 | cursor = self._get_end_cursor() |
|
1741 | cursor = self._get_end_cursor() | |
1737 | self._append_before_prompt_pos = cursor.position() |
|
1742 | self._append_before_prompt_pos = cursor.position() | |
1738 |
|
1743 | |||
1739 | # Insert a preliminary newline, if necessary. |
|
1744 | # Insert a preliminary newline, if necessary. | |
1740 | if newline and cursor.position() > 0: |
|
1745 | if newline and cursor.position() > 0: | |
1741 | cursor.movePosition(QtGui.QTextCursor.Left, |
|
1746 | cursor.movePosition(QtGui.QTextCursor.Left, | |
1742 | QtGui.QTextCursor.KeepAnchor) |
|
1747 | QtGui.QTextCursor.KeepAnchor) | |
1743 | if cursor.selection().toPlainText() != '\n': |
|
1748 | if cursor.selection().toPlainText() != '\n': | |
1744 | self._append_plain_text('\n') |
|
1749 | self._append_plain_text('\n') | |
1745 |
|
1750 | |||
1746 | # Write the prompt. |
|
1751 | # Write the prompt. | |
1747 | self._append_plain_text(self._prompt_sep) |
|
1752 | self._append_plain_text(self._prompt_sep) | |
1748 | if prompt is None: |
|
1753 | if prompt is None: | |
1749 | if self._prompt_html is None: |
|
1754 | if self._prompt_html is None: | |
1750 | self._append_plain_text(self._prompt) |
|
1755 | self._append_plain_text(self._prompt) | |
1751 | else: |
|
1756 | else: | |
1752 | self._append_html(self._prompt_html) |
|
1757 | self._append_html(self._prompt_html) | |
1753 | else: |
|
1758 | else: | |
1754 | if html: |
|
1759 | if html: | |
1755 | self._prompt = self._append_html_fetching_plain_text(prompt) |
|
1760 | self._prompt = self._append_html_fetching_plain_text(prompt) | |
1756 | self._prompt_html = prompt |
|
1761 | self._prompt_html = prompt | |
1757 | else: |
|
1762 | else: | |
1758 | self._append_plain_text(prompt) |
|
1763 | self._append_plain_text(prompt) | |
1759 | self._prompt = prompt |
|
1764 | self._prompt = prompt | |
1760 | self._prompt_html = None |
|
1765 | self._prompt_html = None | |
1761 |
|
1766 | |||
1762 | self._prompt_pos = self._get_end_cursor().position() |
|
1767 | self._prompt_pos = self._get_end_cursor().position() | |
1763 | self._prompt_started() |
|
1768 | self._prompt_started() | |
1764 |
|
1769 | |||
1765 | #------ Signal handlers ---------------------------------------------------- |
|
1770 | #------ Signal handlers ---------------------------------------------------- | |
1766 |
|
1771 | |||
1767 | def _adjust_scrollbars(self): |
|
1772 | def _adjust_scrollbars(self): | |
1768 | """ Expands the vertical scrollbar beyond the range set by Qt. |
|
1773 | """ Expands the vertical scrollbar beyond the range set by Qt. | |
1769 | """ |
|
1774 | """ | |
1770 | # This code is adapted from _q_adjustScrollbars in qplaintextedit.cpp |
|
1775 | # This code is adapted from _q_adjustScrollbars in qplaintextedit.cpp | |
1771 | # and qtextedit.cpp. |
|
1776 | # and qtextedit.cpp. | |
1772 | document = self._control.document() |
|
1777 | document = self._control.document() | |
1773 | scrollbar = self._control.verticalScrollBar() |
|
1778 | scrollbar = self._control.verticalScrollBar() | |
1774 | viewport_height = self._control.viewport().height() |
|
1779 | viewport_height = self._control.viewport().height() | |
1775 | if isinstance(self._control, QtGui.QPlainTextEdit): |
|
1780 | if isinstance(self._control, QtGui.QPlainTextEdit): | |
1776 | maximum = max(0, document.lineCount() - 1) |
|
1781 | maximum = max(0, document.lineCount() - 1) | |
1777 | step = viewport_height / self._control.fontMetrics().lineSpacing() |
|
1782 | step = viewport_height / self._control.fontMetrics().lineSpacing() | |
1778 | else: |
|
1783 | else: | |
1779 | # QTextEdit does not do line-based layout and blocks will not in |
|
1784 | # QTextEdit does not do line-based layout and blocks will not in | |
1780 | # general have the same height. Therefore it does not make sense to |
|
1785 | # general have the same height. Therefore it does not make sense to | |
1781 | # attempt to scroll in line height increments. |
|
1786 | # attempt to scroll in line height increments. | |
1782 | maximum = document.size().height() |
|
1787 | maximum = document.size().height() | |
1783 | step = viewport_height |
|
1788 | step = viewport_height | |
1784 | diff = maximum - scrollbar.maximum() |
|
1789 | diff = maximum - scrollbar.maximum() | |
1785 | scrollbar.setRange(0, maximum) |
|
1790 | scrollbar.setRange(0, maximum) | |
1786 | scrollbar.setPageStep(step) |
|
1791 | scrollbar.setPageStep(step) | |
1787 |
|
1792 | |||
1788 | # Compensate for undesirable scrolling that occurs automatically due to |
|
1793 | # Compensate for undesirable scrolling that occurs automatically due to | |
1789 | # maximumBlockCount() text truncation. |
|
1794 | # maximumBlockCount() text truncation. | |
1790 | if diff < 0 and document.blockCount() == document.maximumBlockCount(): |
|
1795 | if diff < 0 and document.blockCount() == document.maximumBlockCount(): | |
1791 | scrollbar.setValue(scrollbar.value() + diff) |
|
1796 | scrollbar.setValue(scrollbar.value() + diff) | |
1792 |
|
1797 | |||
1793 | def _cursor_position_changed(self): |
|
1798 | def _cursor_position_changed(self): | |
1794 | """ Clears the temporary buffer based on the cursor position. |
|
1799 | """ Clears the temporary buffer based on the cursor position. | |
1795 | """ |
|
1800 | """ | |
1796 | if self._text_completing_pos: |
|
1801 | if self._text_completing_pos: | |
1797 | document = self._control.document() |
|
1802 | document = self._control.document() | |
1798 | if self._text_completing_pos < document.characterCount(): |
|
1803 | if self._text_completing_pos < document.characterCount(): | |
1799 | cursor = self._control.textCursor() |
|
1804 | cursor = self._control.textCursor() | |
1800 | pos = cursor.position() |
|
1805 | pos = cursor.position() | |
1801 | text_cursor = self._control.textCursor() |
|
1806 | text_cursor = self._control.textCursor() | |
1802 | text_cursor.setPosition(self._text_completing_pos) |
|
1807 | text_cursor.setPosition(self._text_completing_pos) | |
1803 | if pos < self._text_completing_pos or \ |
|
1808 | if pos < self._text_completing_pos or \ | |
1804 | cursor.blockNumber() > text_cursor.blockNumber(): |
|
1809 | cursor.blockNumber() > text_cursor.blockNumber(): | |
1805 | self._clear_temporary_buffer() |
|
1810 | self._clear_temporary_buffer() | |
1806 | self._text_completing_pos = 0 |
|
1811 | self._text_completing_pos = 0 | |
1807 | else: |
|
1812 | else: | |
1808 | self._clear_temporary_buffer() |
|
1813 | self._clear_temporary_buffer() | |
1809 | self._text_completing_pos = 0 |
|
1814 | self._text_completing_pos = 0 | |
1810 |
|
1815 | |||
1811 | def _custom_context_menu_requested(self, pos): |
|
1816 | def _custom_context_menu_requested(self, pos): | |
1812 | """ Shows a context menu at the given QPoint (in widget coordinates). |
|
1817 | """ Shows a context menu at the given QPoint (in widget coordinates). | |
1813 | """ |
|
1818 | """ | |
1814 | menu = self._context_menu_make(pos) |
|
1819 | menu = self._context_menu_make(pos) | |
1815 | menu.exec_(self._control.mapToGlobal(pos)) |
|
1820 | menu.exec_(self._control.mapToGlobal(pos)) |
@@ -1,730 +1,735 b'' | |||||
1 | from __future__ import print_function |
|
1 | from __future__ import print_function | |
2 |
|
2 | |||
3 | # Standard library imports |
|
3 | # Standard library imports | |
4 | from collections import namedtuple |
|
4 | from collections import namedtuple | |
5 | import sys |
|
5 | import sys | |
6 | import time |
|
6 | import time | |
7 | import uuid |
|
7 | import uuid | |
8 |
|
8 | |||
9 | # System library imports |
|
9 | # System library imports | |
10 | from pygments.lexers import PythonLexer |
|
10 | from pygments.lexers import PythonLexer | |
11 | from IPython.external import qt |
|
11 | from IPython.external import qt | |
12 | from IPython.external.qt import QtCore, QtGui |
|
12 | from IPython.external.qt import QtCore, QtGui | |
13 |
|
13 | |||
14 | # Local imports |
|
14 | # Local imports | |
15 | from IPython.core.inputsplitter import InputSplitter, transform_classic_prompt |
|
15 | from IPython.core.inputsplitter import InputSplitter, transform_classic_prompt | |
16 | from IPython.core.oinspect import call_tip |
|
16 | from IPython.core.oinspect import call_tip | |
17 | from IPython.frontend.qt.base_frontend_mixin import BaseFrontendMixin |
|
17 | from IPython.frontend.qt.base_frontend_mixin import BaseFrontendMixin | |
18 | from IPython.utils.traitlets import Bool, Instance, Unicode |
|
18 | from IPython.utils.traitlets import Bool, Instance, Unicode | |
19 | from bracket_matcher import BracketMatcher |
|
19 | from bracket_matcher import BracketMatcher | |
20 | from call_tip_widget import CallTipWidget |
|
20 | from call_tip_widget import CallTipWidget | |
21 | from completion_lexer import CompletionLexer |
|
21 | from completion_lexer import CompletionLexer | |
22 | from history_console_widget import HistoryConsoleWidget |
|
22 | from history_console_widget import HistoryConsoleWidget | |
23 | from pygments_highlighter import PygmentsHighlighter |
|
23 | from pygments_highlighter import PygmentsHighlighter | |
24 |
|
24 | |||
25 |
|
25 | |||
26 | class FrontendHighlighter(PygmentsHighlighter): |
|
26 | class FrontendHighlighter(PygmentsHighlighter): | |
27 | """ A PygmentsHighlighter that understands and ignores prompts. |
|
27 | """ A PygmentsHighlighter that understands and ignores prompts. | |
28 | """ |
|
28 | """ | |
29 |
|
29 | |||
30 | def __init__(self, frontend): |
|
30 | def __init__(self, frontend): | |
31 | super(FrontendHighlighter, self).__init__(frontend._control.document()) |
|
31 | super(FrontendHighlighter, self).__init__(frontend._control.document()) | |
32 | self._current_offset = 0 |
|
32 | self._current_offset = 0 | |
33 | self._frontend = frontend |
|
33 | self._frontend = frontend | |
34 | self.highlighting_on = False |
|
34 | self.highlighting_on = False | |
35 |
|
35 | |||
36 | def highlightBlock(self, string): |
|
36 | def highlightBlock(self, string): | |
37 | """ Highlight a block of text. Reimplemented to highlight selectively. |
|
37 | """ Highlight a block of text. Reimplemented to highlight selectively. | |
38 | """ |
|
38 | """ | |
39 | if not self.highlighting_on: |
|
39 | if not self.highlighting_on: | |
40 | return |
|
40 | return | |
41 |
|
41 | |||
42 | # The input to this function is a unicode string that may contain |
|
42 | # The input to this function is a unicode string that may contain | |
43 | # paragraph break characters, non-breaking spaces, etc. Here we acquire |
|
43 | # paragraph break characters, non-breaking spaces, etc. Here we acquire | |
44 | # the string as plain text so we can compare it. |
|
44 | # the string as plain text so we can compare it. | |
45 | current_block = self.currentBlock() |
|
45 | current_block = self.currentBlock() | |
46 | string = self._frontend._get_block_plain_text(current_block) |
|
46 | string = self._frontend._get_block_plain_text(current_block) | |
47 |
|
47 | |||
48 | # Decide whether to check for the regular or continuation prompt. |
|
48 | # Decide whether to check for the regular or continuation prompt. | |
49 | if current_block.contains(self._frontend._prompt_pos): |
|
49 | if current_block.contains(self._frontend._prompt_pos): | |
50 | prompt = self._frontend._prompt |
|
50 | prompt = self._frontend._prompt | |
51 | else: |
|
51 | else: | |
52 | prompt = self._frontend._continuation_prompt |
|
52 | prompt = self._frontend._continuation_prompt | |
53 |
|
53 | |||
54 | # Only highlight if we can identify a prompt, but make sure not to |
|
54 | # Only highlight if we can identify a prompt, but make sure not to | |
55 | # highlight the prompt. |
|
55 | # highlight the prompt. | |
56 | if string.startswith(prompt): |
|
56 | if string.startswith(prompt): | |
57 | self._current_offset = len(prompt) |
|
57 | self._current_offset = len(prompt) | |
58 | string = string[len(prompt):] |
|
58 | string = string[len(prompt):] | |
59 | super(FrontendHighlighter, self).highlightBlock(string) |
|
59 | super(FrontendHighlighter, self).highlightBlock(string) | |
60 |
|
60 | |||
61 | def rehighlightBlock(self, block): |
|
61 | def rehighlightBlock(self, block): | |
62 | """ Reimplemented to temporarily enable highlighting if disabled. |
|
62 | """ Reimplemented to temporarily enable highlighting if disabled. | |
63 | """ |
|
63 | """ | |
64 | old = self.highlighting_on |
|
64 | old = self.highlighting_on | |
65 | self.highlighting_on = True |
|
65 | self.highlighting_on = True | |
66 | super(FrontendHighlighter, self).rehighlightBlock(block) |
|
66 | super(FrontendHighlighter, self).rehighlightBlock(block) | |
67 | self.highlighting_on = old |
|
67 | self.highlighting_on = old | |
68 |
|
68 | |||
69 | def setFormat(self, start, count, format): |
|
69 | def setFormat(self, start, count, format): | |
70 | """ Reimplemented to highlight selectively. |
|
70 | """ Reimplemented to highlight selectively. | |
71 | """ |
|
71 | """ | |
72 | start += self._current_offset |
|
72 | start += self._current_offset | |
73 | super(FrontendHighlighter, self).setFormat(start, count, format) |
|
73 | super(FrontendHighlighter, self).setFormat(start, count, format) | |
74 |
|
74 | |||
75 |
|
75 | |||
76 | class FrontendWidget(HistoryConsoleWidget, BaseFrontendMixin): |
|
76 | class FrontendWidget(HistoryConsoleWidget, BaseFrontendMixin): | |
77 | """ A Qt frontend for a generic Python kernel. |
|
77 | """ A Qt frontend for a generic Python kernel. | |
78 | """ |
|
78 | """ | |
79 |
|
79 | |||
80 | # The text to show when the kernel is (re)started. |
|
80 | # The text to show when the kernel is (re)started. | |
81 | banner = Unicode() |
|
81 | banner = Unicode() | |
82 |
|
82 | |||
83 | # An option and corresponding signal for overriding the default kernel |
|
83 | # An option and corresponding signal for overriding the default kernel | |
84 | # interrupt behavior. |
|
84 | # interrupt behavior. | |
85 | custom_interrupt = Bool(False) |
|
85 | custom_interrupt = Bool(False) | |
86 | custom_interrupt_requested = QtCore.Signal() |
|
86 | custom_interrupt_requested = QtCore.Signal() | |
87 |
|
87 | |||
88 | # An option and corresponding signals for overriding the default kernel |
|
88 | # An option and corresponding signals for overriding the default kernel | |
89 | # restart behavior. |
|
89 | # restart behavior. | |
90 | custom_restart = Bool(False) |
|
90 | custom_restart = Bool(False) | |
91 | custom_restart_kernel_died = QtCore.Signal(float) |
|
91 | custom_restart_kernel_died = QtCore.Signal(float) | |
92 | custom_restart_requested = QtCore.Signal() |
|
92 | custom_restart_requested = QtCore.Signal() | |
93 |
|
93 | |||
94 | # Whether to automatically show calltips on open-parentheses. |
|
94 | # Whether to automatically show calltips on open-parentheses. | |
95 | enable_calltips = Bool(True, config=True, |
|
95 | enable_calltips = Bool(True, config=True, | |
96 | help="Whether to draw information calltips on open-parentheses.") |
|
96 | help="Whether to draw information calltips on open-parentheses.") | |
97 |
|
97 | |||
98 | # Emitted when a user visible 'execute_request' has been submitted to the |
|
98 | # Emitted when a user visible 'execute_request' has been submitted to the | |
99 | # kernel from the FrontendWidget. Contains the code to be executed. |
|
99 | # kernel from the FrontendWidget. Contains the code to be executed. | |
100 | executing = QtCore.Signal(object) |
|
100 | executing = QtCore.Signal(object) | |
101 |
|
101 | |||
102 | # Emitted when a user-visible 'execute_reply' has been received from the |
|
102 | # Emitted when a user-visible 'execute_reply' has been received from the | |
103 | # kernel and processed by the FrontendWidget. Contains the response message. |
|
103 | # kernel and processed by the FrontendWidget. Contains the response message. | |
104 | executed = QtCore.Signal(object) |
|
104 | executed = QtCore.Signal(object) | |
105 |
|
105 | |||
106 | # Emitted when an exit request has been received from the kernel. |
|
106 | # Emitted when an exit request has been received from the kernel. | |
107 | exit_requested = QtCore.Signal(object) |
|
107 | exit_requested = QtCore.Signal(object) | |
108 |
|
108 | |||
109 | # Protected class variables. |
|
109 | # Protected class variables. | |
110 | _CallTipRequest = namedtuple('_CallTipRequest', ['id', 'pos']) |
|
110 | _CallTipRequest = namedtuple('_CallTipRequest', ['id', 'pos']) | |
111 | _CompletionRequest = namedtuple('_CompletionRequest', ['id', 'pos']) |
|
111 | _CompletionRequest = namedtuple('_CompletionRequest', ['id', 'pos']) | |
112 | _ExecutionRequest = namedtuple('_ExecutionRequest', ['id', 'kind']) |
|
112 | _ExecutionRequest = namedtuple('_ExecutionRequest', ['id', 'kind']) | |
113 | _input_splitter_class = InputSplitter |
|
113 | _input_splitter_class = InputSplitter | |
114 | _local_kernel = False |
|
114 | _local_kernel = False | |
115 | _highlighter = Instance(FrontendHighlighter) |
|
115 | _highlighter = Instance(FrontendHighlighter) | |
116 |
|
116 | |||
117 | #--------------------------------------------------------------------------- |
|
117 | #--------------------------------------------------------------------------- | |
118 | # 'object' interface |
|
118 | # 'object' interface | |
119 | #--------------------------------------------------------------------------- |
|
119 | #--------------------------------------------------------------------------- | |
120 |
|
120 | |||
121 | def __init__(self, *args, **kw): |
|
121 | def __init__(self, *args, **kw): | |
122 | super(FrontendWidget, self).__init__(*args, **kw) |
|
122 | super(FrontendWidget, self).__init__(*args, **kw) | |
123 | # FIXME: remove this when PySide min version is updated past 1.0.7 |
|
123 | # FIXME: remove this when PySide min version is updated past 1.0.7 | |
124 | # forcefully disable calltips if PySide is < 1.0.7, because they crash |
|
124 | # forcefully disable calltips if PySide is < 1.0.7, because they crash | |
125 | if qt.QT_API == qt.QT_API_PYSIDE: |
|
125 | if qt.QT_API == qt.QT_API_PYSIDE: | |
126 | import PySide |
|
126 | import PySide | |
127 | if PySide.__version_info__ < (1,0,7): |
|
127 | if PySide.__version_info__ < (1,0,7): | |
128 | self.log.warn("PySide %s < 1.0.7 detected, disabling calltips" % PySide.__version__) |
|
128 | self.log.warn("PySide %s < 1.0.7 detected, disabling calltips" % PySide.__version__) | |
129 | self.enable_calltips = False |
|
129 | self.enable_calltips = False | |
130 |
|
130 | |||
131 | # FrontendWidget protected variables. |
|
131 | # FrontendWidget protected variables. | |
132 | self._bracket_matcher = BracketMatcher(self._control) |
|
132 | self._bracket_matcher = BracketMatcher(self._control) | |
133 | self._call_tip_widget = CallTipWidget(self._control) |
|
133 | self._call_tip_widget = CallTipWidget(self._control) | |
134 | self._completion_lexer = CompletionLexer(PythonLexer()) |
|
134 | self._completion_lexer = CompletionLexer(PythonLexer()) | |
135 | self._copy_raw_action = QtGui.QAction('Copy (Raw Text)', None) |
|
135 | self._copy_raw_action = QtGui.QAction('Copy (Raw Text)', None) | |
136 | self._hidden = False |
|
136 | self._hidden = False | |
137 | self._highlighter = FrontendHighlighter(self) |
|
137 | self._highlighter = FrontendHighlighter(self) | |
138 | self._input_splitter = self._input_splitter_class(input_mode='cell') |
|
138 | self._input_splitter = self._input_splitter_class(input_mode='cell') | |
139 | self._kernel_manager = None |
|
139 | self._kernel_manager = None | |
140 | self._request_info = {} |
|
140 | self._request_info = {} | |
141 | self._request_info['execute'] = {}; |
|
141 | self._request_info['execute'] = {}; | |
142 | self._callback_dict = {} |
|
142 | self._callback_dict = {} | |
143 |
|
143 | |||
144 | # Configure the ConsoleWidget. |
|
144 | # Configure the ConsoleWidget. | |
145 | self.tab_width = 4 |
|
145 | self.tab_width = 4 | |
146 | self._set_continuation_prompt('... ') |
|
146 | self._set_continuation_prompt('... ') | |
147 |
|
147 | |||
148 | # Configure the CallTipWidget. |
|
148 | # Configure the CallTipWidget. | |
149 | self._call_tip_widget.setFont(self.font) |
|
149 | self._call_tip_widget.setFont(self.font) | |
150 | self.font_changed.connect(self._call_tip_widget.setFont) |
|
150 | self.font_changed.connect(self._call_tip_widget.setFont) | |
151 |
|
151 | |||
152 | # Configure actions. |
|
152 | # Configure actions. | |
153 | action = self._copy_raw_action |
|
153 | action = self._copy_raw_action | |
154 | key = QtCore.Qt.CTRL | QtCore.Qt.SHIFT | QtCore.Qt.Key_C |
|
154 | key = QtCore.Qt.CTRL | QtCore.Qt.SHIFT | QtCore.Qt.Key_C | |
155 | action.setEnabled(False) |
|
155 | action.setEnabled(False) | |
156 | action.setShortcut(QtGui.QKeySequence(key)) |
|
156 | action.setShortcut(QtGui.QKeySequence(key)) | |
157 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) |
|
157 | action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut) | |
158 | action.triggered.connect(self.copy_raw) |
|
158 | action.triggered.connect(self.copy_raw) | |
159 | self.copy_available.connect(action.setEnabled) |
|
159 | self.copy_available.connect(action.setEnabled) | |
160 | self.addAction(action) |
|
160 | self.addAction(action) | |
161 |
|
161 | |||
162 | # Connect signal handlers. |
|
162 | # Connect signal handlers. | |
163 | document = self._control.document() |
|
163 | document = self._control.document() | |
164 | document.contentsChange.connect(self._document_contents_change) |
|
164 | document.contentsChange.connect(self._document_contents_change) | |
165 |
|
165 | |||
166 | # Set flag for whether we are connected via localhost. |
|
166 | # Set flag for whether we are connected via localhost. | |
167 | self._local_kernel = kw.get('local_kernel', |
|
167 | self._local_kernel = kw.get('local_kernel', | |
168 | FrontendWidget._local_kernel) |
|
168 | FrontendWidget._local_kernel) | |
169 |
|
169 | |||
170 | #--------------------------------------------------------------------------- |
|
170 | #--------------------------------------------------------------------------- | |
171 | # 'ConsoleWidget' public interface |
|
171 | # 'ConsoleWidget' public interface | |
172 | #--------------------------------------------------------------------------- |
|
172 | #--------------------------------------------------------------------------- | |
173 |
|
173 | |||
174 | def copy(self): |
|
174 | def copy(self): | |
175 | """ Copy the currently selected text to the clipboard, removing prompts. |
|
175 | """ Copy the currently selected text to the clipboard, removing prompts. | |
176 | """ |
|
176 | """ | |
177 | text = self._control.textCursor().selection().toPlainText() |
|
177 | if self.layout().currentWidget() == self._page_control : | |
178 | if text: |
|
178 | self._page_control.copy() | |
179 | lines = map(transform_classic_prompt, text.splitlines()) |
|
179 | elif self.layout().currentWidget() == self._control : | |
180 | text = '\n'.join(lines) |
|
180 | text = self._control.textCursor().selection().toPlainText() | |
181 | QtGui.QApplication.clipboard().setText(text) |
|
181 | if text: | |
|
182 | lines = map(transform_classic_prompt, text.splitlines()) | |||
|
183 | text = '\n'.join(lines) | |||
|
184 | QtGui.QApplication.clipboard().setText(text) | |||
|
185 | else: | |||
|
186 | self.log.debug("frontend widget : unknown copy target") | |||
182 |
|
187 | |||
183 | #--------------------------------------------------------------------------- |
|
188 | #--------------------------------------------------------------------------- | |
184 | # 'ConsoleWidget' abstract interface |
|
189 | # 'ConsoleWidget' abstract interface | |
185 | #--------------------------------------------------------------------------- |
|
190 | #--------------------------------------------------------------------------- | |
186 |
|
191 | |||
187 | def _is_complete(self, source, interactive): |
|
192 | def _is_complete(self, source, interactive): | |
188 | """ Returns whether 'source' can be completely processed and a new |
|
193 | """ Returns whether 'source' can be completely processed and a new | |
189 | prompt created. When triggered by an Enter/Return key press, |
|
194 | prompt created. When triggered by an Enter/Return key press, | |
190 | 'interactive' is True; otherwise, it is False. |
|
195 | 'interactive' is True; otherwise, it is False. | |
191 | """ |
|
196 | """ | |
192 | complete = self._input_splitter.push(source) |
|
197 | complete = self._input_splitter.push(source) | |
193 | if interactive: |
|
198 | if interactive: | |
194 | complete = not self._input_splitter.push_accepts_more() |
|
199 | complete = not self._input_splitter.push_accepts_more() | |
195 | return complete |
|
200 | return complete | |
196 |
|
201 | |||
197 | def _execute(self, source, hidden): |
|
202 | def _execute(self, source, hidden): | |
198 | """ Execute 'source'. If 'hidden', do not show any output. |
|
203 | """ Execute 'source'. If 'hidden', do not show any output. | |
199 |
|
204 | |||
200 | See parent class :meth:`execute` docstring for full details. |
|
205 | See parent class :meth:`execute` docstring for full details. | |
201 | """ |
|
206 | """ | |
202 | msg_id = self.kernel_manager.shell_channel.execute(source, hidden) |
|
207 | msg_id = self.kernel_manager.shell_channel.execute(source, hidden) | |
203 | self._request_info['execute'][msg_id] = self._ExecutionRequest(msg_id, 'user') |
|
208 | self._request_info['execute'][msg_id] = self._ExecutionRequest(msg_id, 'user') | |
204 | self._hidden = hidden |
|
209 | self._hidden = hidden | |
205 | if not hidden: |
|
210 | if not hidden: | |
206 | self.executing.emit(source) |
|
211 | self.executing.emit(source) | |
207 |
|
212 | |||
208 | def _prompt_started_hook(self): |
|
213 | def _prompt_started_hook(self): | |
209 | """ Called immediately after a new prompt is displayed. |
|
214 | """ Called immediately after a new prompt is displayed. | |
210 | """ |
|
215 | """ | |
211 | if not self._reading: |
|
216 | if not self._reading: | |
212 | self._highlighter.highlighting_on = True |
|
217 | self._highlighter.highlighting_on = True | |
213 |
|
218 | |||
214 | def _prompt_finished_hook(self): |
|
219 | def _prompt_finished_hook(self): | |
215 | """ Called immediately after a prompt is finished, i.e. when some input |
|
220 | """ Called immediately after a prompt is finished, i.e. when some input | |
216 | will be processed and a new prompt displayed. |
|
221 | will be processed and a new prompt displayed. | |
217 | """ |
|
222 | """ | |
218 | # Flush all state from the input splitter so the next round of |
|
223 | # Flush all state from the input splitter so the next round of | |
219 | # reading input starts with a clean buffer. |
|
224 | # reading input starts with a clean buffer. | |
220 | self._input_splitter.reset() |
|
225 | self._input_splitter.reset() | |
221 |
|
226 | |||
222 | if not self._reading: |
|
227 | if not self._reading: | |
223 | self._highlighter.highlighting_on = False |
|
228 | self._highlighter.highlighting_on = False | |
224 |
|
229 | |||
225 | def _tab_pressed(self): |
|
230 | def _tab_pressed(self): | |
226 | """ Called when the tab key is pressed. Returns whether to continue |
|
231 | """ Called when the tab key is pressed. Returns whether to continue | |
227 | processing the event. |
|
232 | processing the event. | |
228 | """ |
|
233 | """ | |
229 | # Perform tab completion if: |
|
234 | # Perform tab completion if: | |
230 | # 1) The cursor is in the input buffer. |
|
235 | # 1) The cursor is in the input buffer. | |
231 | # 2) There is a non-whitespace character before the cursor. |
|
236 | # 2) There is a non-whitespace character before the cursor. | |
232 | text = self._get_input_buffer_cursor_line() |
|
237 | text = self._get_input_buffer_cursor_line() | |
233 | if text is None: |
|
238 | if text is None: | |
234 | return False |
|
239 | return False | |
235 | complete = bool(text[:self._get_input_buffer_cursor_column()].strip()) |
|
240 | complete = bool(text[:self._get_input_buffer_cursor_column()].strip()) | |
236 | if complete: |
|
241 | if complete: | |
237 | self._complete() |
|
242 | self._complete() | |
238 | return not complete |
|
243 | return not complete | |
239 |
|
244 | |||
240 | #--------------------------------------------------------------------------- |
|
245 | #--------------------------------------------------------------------------- | |
241 | # 'ConsoleWidget' protected interface |
|
246 | # 'ConsoleWidget' protected interface | |
242 | #--------------------------------------------------------------------------- |
|
247 | #--------------------------------------------------------------------------- | |
243 |
|
248 | |||
244 | def _context_menu_make(self, pos): |
|
249 | def _context_menu_make(self, pos): | |
245 | """ Reimplemented to add an action for raw copy. |
|
250 | """ Reimplemented to add an action for raw copy. | |
246 | """ |
|
251 | """ | |
247 | menu = super(FrontendWidget, self)._context_menu_make(pos) |
|
252 | menu = super(FrontendWidget, self)._context_menu_make(pos) | |
248 | for before_action in menu.actions(): |
|
253 | for before_action in menu.actions(): | |
249 | if before_action.shortcut().matches(QtGui.QKeySequence.Paste) == \ |
|
254 | if before_action.shortcut().matches(QtGui.QKeySequence.Paste) == \ | |
250 | QtGui.QKeySequence.ExactMatch: |
|
255 | QtGui.QKeySequence.ExactMatch: | |
251 | menu.insertAction(before_action, self._copy_raw_action) |
|
256 | menu.insertAction(before_action, self._copy_raw_action) | |
252 | break |
|
257 | break | |
253 | return menu |
|
258 | return menu | |
254 |
|
259 | |||
255 | def request_interrupt_kernel(self): |
|
260 | def request_interrupt_kernel(self): | |
256 | if self._executing: |
|
261 | if self._executing: | |
257 | self.interrupt_kernel() |
|
262 | self.interrupt_kernel() | |
258 |
|
263 | |||
259 | def request_restart_kernel(self): |
|
264 | def request_restart_kernel(self): | |
260 | message = 'Are you sure you want to restart the kernel?' |
|
265 | message = 'Are you sure you want to restart the kernel?' | |
261 | self.restart_kernel(message, now=False) |
|
266 | self.restart_kernel(message, now=False) | |
262 |
|
267 | |||
263 | def _event_filter_console_keypress(self, event): |
|
268 | def _event_filter_console_keypress(self, event): | |
264 | """ Reimplemented for execution interruption and smart backspace. |
|
269 | """ Reimplemented for execution interruption and smart backspace. | |
265 | """ |
|
270 | """ | |
266 | key = event.key() |
|
271 | key = event.key() | |
267 | if self._control_key_down(event.modifiers(), include_command=False): |
|
272 | if self._control_key_down(event.modifiers(), include_command=False): | |
268 |
|
273 | |||
269 | if key == QtCore.Qt.Key_C and self._executing: |
|
274 | if key == QtCore.Qt.Key_C and self._executing: | |
270 | self.request_interrupt_kernel() |
|
275 | self.request_interrupt_kernel() | |
271 | return True |
|
276 | return True | |
272 |
|
277 | |||
273 | elif key == QtCore.Qt.Key_Period: |
|
278 | elif key == QtCore.Qt.Key_Period: | |
274 | self.request_restart_kernel() |
|
279 | self.request_restart_kernel() | |
275 | return True |
|
280 | return True | |
276 |
|
281 | |||
277 | elif not event.modifiers() & QtCore.Qt.AltModifier: |
|
282 | elif not event.modifiers() & QtCore.Qt.AltModifier: | |
278 |
|
283 | |||
279 | # Smart backspace: remove four characters in one backspace if: |
|
284 | # Smart backspace: remove four characters in one backspace if: | |
280 | # 1) everything left of the cursor is whitespace |
|
285 | # 1) everything left of the cursor is whitespace | |
281 | # 2) the four characters immediately left of the cursor are spaces |
|
286 | # 2) the four characters immediately left of the cursor are spaces | |
282 | if key == QtCore.Qt.Key_Backspace: |
|
287 | if key == QtCore.Qt.Key_Backspace: | |
283 | col = self._get_input_buffer_cursor_column() |
|
288 | col = self._get_input_buffer_cursor_column() | |
284 | cursor = self._control.textCursor() |
|
289 | cursor = self._control.textCursor() | |
285 | if col > 3 and not cursor.hasSelection(): |
|
290 | if col > 3 and not cursor.hasSelection(): | |
286 | text = self._get_input_buffer_cursor_line()[:col] |
|
291 | text = self._get_input_buffer_cursor_line()[:col] | |
287 | if text.endswith(' ') and not text.strip(): |
|
292 | if text.endswith(' ') and not text.strip(): | |
288 | cursor.movePosition(QtGui.QTextCursor.Left, |
|
293 | cursor.movePosition(QtGui.QTextCursor.Left, | |
289 | QtGui.QTextCursor.KeepAnchor, 4) |
|
294 | QtGui.QTextCursor.KeepAnchor, 4) | |
290 | cursor.removeSelectedText() |
|
295 | cursor.removeSelectedText() | |
291 | return True |
|
296 | return True | |
292 |
|
297 | |||
293 | return super(FrontendWidget, self)._event_filter_console_keypress(event) |
|
298 | return super(FrontendWidget, self)._event_filter_console_keypress(event) | |
294 |
|
299 | |||
295 | def _insert_continuation_prompt(self, cursor): |
|
300 | def _insert_continuation_prompt(self, cursor): | |
296 | """ Reimplemented for auto-indentation. |
|
301 | """ Reimplemented for auto-indentation. | |
297 | """ |
|
302 | """ | |
298 | super(FrontendWidget, self)._insert_continuation_prompt(cursor) |
|
303 | super(FrontendWidget, self)._insert_continuation_prompt(cursor) | |
299 | cursor.insertText(' ' * self._input_splitter.indent_spaces) |
|
304 | cursor.insertText(' ' * self._input_splitter.indent_spaces) | |
300 |
|
305 | |||
301 | #--------------------------------------------------------------------------- |
|
306 | #--------------------------------------------------------------------------- | |
302 | # 'BaseFrontendMixin' abstract interface |
|
307 | # 'BaseFrontendMixin' abstract interface | |
303 | #--------------------------------------------------------------------------- |
|
308 | #--------------------------------------------------------------------------- | |
304 |
|
309 | |||
305 | def _handle_complete_reply(self, rep): |
|
310 | def _handle_complete_reply(self, rep): | |
306 | """ Handle replies for tab completion. |
|
311 | """ Handle replies for tab completion. | |
307 | """ |
|
312 | """ | |
308 | self.log.debug("complete: %s", rep.get('content', '')) |
|
313 | self.log.debug("complete: %s", rep.get('content', '')) | |
309 | cursor = self._get_cursor() |
|
314 | cursor = self._get_cursor() | |
310 | info = self._request_info.get('complete') |
|
315 | info = self._request_info.get('complete') | |
311 | if info and info.id == rep['parent_header']['msg_id'] and \ |
|
316 | if info and info.id == rep['parent_header']['msg_id'] and \ | |
312 | info.pos == cursor.position(): |
|
317 | info.pos == cursor.position(): | |
313 | text = '.'.join(self._get_context()) |
|
318 | text = '.'.join(self._get_context()) | |
314 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(text)) |
|
319 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(text)) | |
315 | self._complete_with_items(cursor, rep['content']['matches']) |
|
320 | self._complete_with_items(cursor, rep['content']['matches']) | |
316 |
|
321 | |||
317 | def _silent_exec_callback(self, expr, callback): |
|
322 | def _silent_exec_callback(self, expr, callback): | |
318 | """Silently execute `expr` in the kernel and call `callback` with reply |
|
323 | """Silently execute `expr` in the kernel and call `callback` with reply | |
319 |
|
324 | |||
320 | the `expr` is evaluated silently in the kernel (without) output in |
|
325 | the `expr` is evaluated silently in the kernel (without) output in | |
321 | the frontend. Call `callback` with the |
|
326 | the frontend. Call `callback` with the | |
322 | `repr <http://docs.python.org/library/functions.html#repr> `_ as first argument |
|
327 | `repr <http://docs.python.org/library/functions.html#repr> `_ as first argument | |
323 |
|
328 | |||
324 | Parameters |
|
329 | Parameters | |
325 | ---------- |
|
330 | ---------- | |
326 | expr : string |
|
331 | expr : string | |
327 | valid string to be executed by the kernel. |
|
332 | valid string to be executed by the kernel. | |
328 | callback : function |
|
333 | callback : function | |
329 | function accepting one arguement, as a string. The string will be |
|
334 | function accepting one arguement, as a string. The string will be | |
330 | the `repr` of the result of evaluating `expr` |
|
335 | the `repr` of the result of evaluating `expr` | |
331 |
|
336 | |||
332 | The `callback` is called with the 'repr()' of the result of `expr` as |
|
337 | The `callback` is called with the 'repr()' of the result of `expr` as | |
333 | first argument. To get the object, do 'eval()' onthe passed value. |
|
338 | first argument. To get the object, do 'eval()' onthe passed value. | |
334 |
|
339 | |||
335 | See Also |
|
340 | See Also | |
336 | -------- |
|
341 | -------- | |
337 | _handle_exec_callback : private method, deal with calling callback with reply |
|
342 | _handle_exec_callback : private method, deal with calling callback with reply | |
338 |
|
343 | |||
339 | """ |
|
344 | """ | |
340 |
|
345 | |||
341 | # generate uuid, which would be used as a indication of wether or not |
|
346 | # generate uuid, which would be used as a indication of wether or not | |
342 | # the unique request originate from here (can use msg id ?) |
|
347 | # the unique request originate from here (can use msg id ?) | |
343 | local_uuid = str(uuid.uuid1()) |
|
348 | local_uuid = str(uuid.uuid1()) | |
344 | msg_id = self.kernel_manager.shell_channel.execute('', |
|
349 | msg_id = self.kernel_manager.shell_channel.execute('', | |
345 | silent=True, user_expressions={ local_uuid:expr }) |
|
350 | silent=True, user_expressions={ local_uuid:expr }) | |
346 | self._callback_dict[local_uuid] = callback |
|
351 | self._callback_dict[local_uuid] = callback | |
347 | self._request_info['execute'][msg_id] = self._ExecutionRequest(msg_id, 'silent_exec_callback') |
|
352 | self._request_info['execute'][msg_id] = self._ExecutionRequest(msg_id, 'silent_exec_callback') | |
348 |
|
353 | |||
349 | def _handle_exec_callback(self, msg): |
|
354 | def _handle_exec_callback(self, msg): | |
350 | """Execute `callback` corresonding to `msg` reply, after ``_silent_exec_callback`` |
|
355 | """Execute `callback` corresonding to `msg` reply, after ``_silent_exec_callback`` | |
351 |
|
356 | |||
352 | Parameters |
|
357 | Parameters | |
353 | ---------- |
|
358 | ---------- | |
354 | msg : raw message send by the kernel containing an `user_expressions` |
|
359 | msg : raw message send by the kernel containing an `user_expressions` | |
355 | and having a 'silent_exec_callback' kind. |
|
360 | and having a 'silent_exec_callback' kind. | |
356 |
|
361 | |||
357 | Notes |
|
362 | Notes | |
358 | ----- |
|
363 | ----- | |
359 | This fonction will look for a `callback` associated with the |
|
364 | This fonction will look for a `callback` associated with the | |
360 | corresponding message id. Association has been made by |
|
365 | corresponding message id. Association has been made by | |
361 | `_silent_exec_callback`. `callback` is then called with the `repr()` |
|
366 | `_silent_exec_callback`. `callback` is then called with the `repr()` | |
362 | of the value of corresponding `user_expressions` as argument. |
|
367 | of the value of corresponding `user_expressions` as argument. | |
363 | `callback` is then removed from the known list so that any message |
|
368 | `callback` is then removed from the known list so that any message | |
364 | coming again with the same id won't trigger it. |
|
369 | coming again with the same id won't trigger it. | |
365 |
|
370 | |||
366 | """ |
|
371 | """ | |
367 |
|
372 | |||
368 | user_exp = msg['content']['user_expressions'] |
|
373 | user_exp = msg['content']['user_expressions'] | |
369 | for expression in user_exp: |
|
374 | for expression in user_exp: | |
370 | if expression in self._callback_dict: |
|
375 | if expression in self._callback_dict: | |
371 | self._callback_dict.pop(expression)(user_exp[expression]) |
|
376 | self._callback_dict.pop(expression)(user_exp[expression]) | |
372 |
|
377 | |||
373 | def _handle_execute_reply(self, msg): |
|
378 | def _handle_execute_reply(self, msg): | |
374 | """ Handles replies for code execution. |
|
379 | """ Handles replies for code execution. | |
375 | """ |
|
380 | """ | |
376 | self.log.debug("execute: %s", msg.get('content', '')) |
|
381 | self.log.debug("execute: %s", msg.get('content', '')) | |
377 | msg_id = msg['parent_header']['msg_id'] |
|
382 | msg_id = msg['parent_header']['msg_id'] | |
378 | info = self._request_info['execute'].get(msg_id) |
|
383 | info = self._request_info['execute'].get(msg_id) | |
379 | # unset reading flag, because if execute finished, raw_input can't |
|
384 | # unset reading flag, because if execute finished, raw_input can't | |
380 | # still be pending. |
|
385 | # still be pending. | |
381 | self._reading = False |
|
386 | self._reading = False | |
382 | if info and info.kind == 'user' and not self._hidden: |
|
387 | if info and info.kind == 'user' and not self._hidden: | |
383 | # Make sure that all output from the SUB channel has been processed |
|
388 | # Make sure that all output from the SUB channel has been processed | |
384 | # before writing a new prompt. |
|
389 | # before writing a new prompt. | |
385 | self.kernel_manager.sub_channel.flush() |
|
390 | self.kernel_manager.sub_channel.flush() | |
386 |
|
391 | |||
387 | # Reset the ANSI style information to prevent bad text in stdout |
|
392 | # Reset the ANSI style information to prevent bad text in stdout | |
388 | # from messing up our colors. We're not a true terminal so we're |
|
393 | # from messing up our colors. We're not a true terminal so we're | |
389 | # allowed to do this. |
|
394 | # allowed to do this. | |
390 | if self.ansi_codes: |
|
395 | if self.ansi_codes: | |
391 | self._ansi_processor.reset_sgr() |
|
396 | self._ansi_processor.reset_sgr() | |
392 |
|
397 | |||
393 | content = msg['content'] |
|
398 | content = msg['content'] | |
394 | status = content['status'] |
|
399 | status = content['status'] | |
395 | if status == 'ok': |
|
400 | if status == 'ok': | |
396 | self._process_execute_ok(msg) |
|
401 | self._process_execute_ok(msg) | |
397 | elif status == 'error': |
|
402 | elif status == 'error': | |
398 | self._process_execute_error(msg) |
|
403 | self._process_execute_error(msg) | |
399 | elif status == 'aborted': |
|
404 | elif status == 'aborted': | |
400 | self._process_execute_abort(msg) |
|
405 | self._process_execute_abort(msg) | |
401 |
|
406 | |||
402 | self._show_interpreter_prompt_for_reply(msg) |
|
407 | self._show_interpreter_prompt_for_reply(msg) | |
403 | self.executed.emit(msg) |
|
408 | self.executed.emit(msg) | |
404 | self._request_info['execute'].pop(msg_id) |
|
409 | self._request_info['execute'].pop(msg_id) | |
405 | elif info and info.kind == 'silent_exec_callback' and not self._hidden: |
|
410 | elif info and info.kind == 'silent_exec_callback' and not self._hidden: | |
406 | self._handle_exec_callback(msg) |
|
411 | self._handle_exec_callback(msg) | |
407 | self._request_info['execute'].pop(msg_id) |
|
412 | self._request_info['execute'].pop(msg_id) | |
408 | else: |
|
413 | else: | |
409 | super(FrontendWidget, self)._handle_execute_reply(msg) |
|
414 | super(FrontendWidget, self)._handle_execute_reply(msg) | |
410 |
|
415 | |||
411 | def _handle_input_request(self, msg): |
|
416 | def _handle_input_request(self, msg): | |
412 | """ Handle requests for raw_input. |
|
417 | """ Handle requests for raw_input. | |
413 | """ |
|
418 | """ | |
414 | self.log.debug("input: %s", msg.get('content', '')) |
|
419 | self.log.debug("input: %s", msg.get('content', '')) | |
415 | if self._hidden: |
|
420 | if self._hidden: | |
416 | raise RuntimeError('Request for raw input during hidden execution.') |
|
421 | raise RuntimeError('Request for raw input during hidden execution.') | |
417 |
|
422 | |||
418 | # Make sure that all output from the SUB channel has been processed |
|
423 | # Make sure that all output from the SUB channel has been processed | |
419 | # before entering readline mode. |
|
424 | # before entering readline mode. | |
420 | self.kernel_manager.sub_channel.flush() |
|
425 | self.kernel_manager.sub_channel.flush() | |
421 |
|
426 | |||
422 | def callback(line): |
|
427 | def callback(line): | |
423 | self.kernel_manager.stdin_channel.input(line) |
|
428 | self.kernel_manager.stdin_channel.input(line) | |
424 | if self._reading: |
|
429 | if self._reading: | |
425 | self.log.debug("Got second input request, assuming first was interrupted.") |
|
430 | self.log.debug("Got second input request, assuming first was interrupted.") | |
426 | self._reading = False |
|
431 | self._reading = False | |
427 | self._readline(msg['content']['prompt'], callback=callback) |
|
432 | self._readline(msg['content']['prompt'], callback=callback) | |
428 |
|
433 | |||
429 | def _handle_kernel_died(self, since_last_heartbeat): |
|
434 | def _handle_kernel_died(self, since_last_heartbeat): | |
430 | """ Handle the kernel's death by asking if the user wants to restart. |
|
435 | """ Handle the kernel's death by asking if the user wants to restart. | |
431 | """ |
|
436 | """ | |
432 | self.log.debug("kernel died: %s", since_last_heartbeat) |
|
437 | self.log.debug("kernel died: %s", since_last_heartbeat) | |
433 | if self.custom_restart: |
|
438 | if self.custom_restart: | |
434 | self.custom_restart_kernel_died.emit(since_last_heartbeat) |
|
439 | self.custom_restart_kernel_died.emit(since_last_heartbeat) | |
435 | else: |
|
440 | else: | |
436 | message = 'The kernel heartbeat has been inactive for %.2f ' \ |
|
441 | message = 'The kernel heartbeat has been inactive for %.2f ' \ | |
437 | 'seconds. Do you want to restart the kernel? You may ' \ |
|
442 | 'seconds. Do you want to restart the kernel? You may ' \ | |
438 | 'first want to check the network connection.' % \ |
|
443 | 'first want to check the network connection.' % \ | |
439 | since_last_heartbeat |
|
444 | since_last_heartbeat | |
440 | self.restart_kernel(message, now=True) |
|
445 | self.restart_kernel(message, now=True) | |
441 |
|
446 | |||
442 | def _handle_object_info_reply(self, rep): |
|
447 | def _handle_object_info_reply(self, rep): | |
443 | """ Handle replies for call tips. |
|
448 | """ Handle replies for call tips. | |
444 | """ |
|
449 | """ | |
445 | self.log.debug("oinfo: %s", rep.get('content', '')) |
|
450 | self.log.debug("oinfo: %s", rep.get('content', '')) | |
446 | cursor = self._get_cursor() |
|
451 | cursor = self._get_cursor() | |
447 | info = self._request_info.get('call_tip') |
|
452 | info = self._request_info.get('call_tip') | |
448 | if info and info.id == rep['parent_header']['msg_id'] and \ |
|
453 | if info and info.id == rep['parent_header']['msg_id'] and \ | |
449 | info.pos == cursor.position(): |
|
454 | info.pos == cursor.position(): | |
450 | # Get the information for a call tip. For now we format the call |
|
455 | # Get the information for a call tip. For now we format the call | |
451 | # line as string, later we can pass False to format_call and |
|
456 | # line as string, later we can pass False to format_call and | |
452 | # syntax-highlight it ourselves for nicer formatting in the |
|
457 | # syntax-highlight it ourselves for nicer formatting in the | |
453 | # calltip. |
|
458 | # calltip. | |
454 | content = rep['content'] |
|
459 | content = rep['content'] | |
455 | # if this is from pykernel, 'docstring' will be the only key |
|
460 | # if this is from pykernel, 'docstring' will be the only key | |
456 | if content.get('ismagic', False): |
|
461 | if content.get('ismagic', False): | |
457 | # Don't generate a call-tip for magics. Ideally, we should |
|
462 | # Don't generate a call-tip for magics. Ideally, we should | |
458 | # generate a tooltip, but not on ( like we do for actual |
|
463 | # generate a tooltip, but not on ( like we do for actual | |
459 | # callables. |
|
464 | # callables. | |
460 | call_info, doc = None, None |
|
465 | call_info, doc = None, None | |
461 | else: |
|
466 | else: | |
462 | call_info, doc = call_tip(content, format_call=True) |
|
467 | call_info, doc = call_tip(content, format_call=True) | |
463 | if call_info or doc: |
|
468 | if call_info or doc: | |
464 | self._call_tip_widget.show_call_info(call_info, doc) |
|
469 | self._call_tip_widget.show_call_info(call_info, doc) | |
465 |
|
470 | |||
466 | def _handle_pyout(self, msg): |
|
471 | def _handle_pyout(self, msg): | |
467 | """ Handle display hook output. |
|
472 | """ Handle display hook output. | |
468 | """ |
|
473 | """ | |
469 | self.log.debug("pyout: %s", msg.get('content', '')) |
|
474 | self.log.debug("pyout: %s", msg.get('content', '')) | |
470 | if not self._hidden and self._is_from_this_session(msg): |
|
475 | if not self._hidden and self._is_from_this_session(msg): | |
471 | text = msg['content']['data'] |
|
476 | text = msg['content']['data'] | |
472 | self._append_plain_text(text + '\n', before_prompt=True) |
|
477 | self._append_plain_text(text + '\n', before_prompt=True) | |
473 |
|
478 | |||
474 | def _handle_stream(self, msg): |
|
479 | def _handle_stream(self, msg): | |
475 | """ Handle stdout, stderr, and stdin. |
|
480 | """ Handle stdout, stderr, and stdin. | |
476 | """ |
|
481 | """ | |
477 | self.log.debug("stream: %s", msg.get('content', '')) |
|
482 | self.log.debug("stream: %s", msg.get('content', '')) | |
478 | if not self._hidden and self._is_from_this_session(msg): |
|
483 | if not self._hidden and self._is_from_this_session(msg): | |
479 | # Most consoles treat tabs as being 8 space characters. Convert tabs |
|
484 | # Most consoles treat tabs as being 8 space characters. Convert tabs | |
480 | # to spaces so that output looks as expected regardless of this |
|
485 | # to spaces so that output looks as expected regardless of this | |
481 | # widget's tab width. |
|
486 | # widget's tab width. | |
482 | text = msg['content']['data'].expandtabs(8) |
|
487 | text = msg['content']['data'].expandtabs(8) | |
483 |
|
488 | |||
484 | self._append_plain_text(text, before_prompt=True) |
|
489 | self._append_plain_text(text, before_prompt=True) | |
485 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
490 | self._control.moveCursor(QtGui.QTextCursor.End) | |
486 |
|
491 | |||
487 | def _handle_shutdown_reply(self, msg): |
|
492 | def _handle_shutdown_reply(self, msg): | |
488 | """ Handle shutdown signal, only if from other console. |
|
493 | """ Handle shutdown signal, only if from other console. | |
489 | """ |
|
494 | """ | |
490 | self.log.debug("shutdown: %s", msg.get('content', '')) |
|
495 | self.log.debug("shutdown: %s", msg.get('content', '')) | |
491 | if not self._hidden and not self._is_from_this_session(msg): |
|
496 | if not self._hidden and not self._is_from_this_session(msg): | |
492 | if self._local_kernel: |
|
497 | if self._local_kernel: | |
493 | if not msg['content']['restart']: |
|
498 | if not msg['content']['restart']: | |
494 | self.exit_requested.emit(self) |
|
499 | self.exit_requested.emit(self) | |
495 | else: |
|
500 | else: | |
496 | # we just got notified of a restart! |
|
501 | # we just got notified of a restart! | |
497 | time.sleep(0.25) # wait 1/4 sec to reset |
|
502 | time.sleep(0.25) # wait 1/4 sec to reset | |
498 | # lest the request for a new prompt |
|
503 | # lest the request for a new prompt | |
499 | # goes to the old kernel |
|
504 | # goes to the old kernel | |
500 | self.reset() |
|
505 | self.reset() | |
501 | else: # remote kernel, prompt on Kernel shutdown/reset |
|
506 | else: # remote kernel, prompt on Kernel shutdown/reset | |
502 | title = self.window().windowTitle() |
|
507 | title = self.window().windowTitle() | |
503 | if not msg['content']['restart']: |
|
508 | if not msg['content']['restart']: | |
504 | reply = QtGui.QMessageBox.question(self, title, |
|
509 | reply = QtGui.QMessageBox.question(self, title, | |
505 | "Kernel has been shutdown permanently. " |
|
510 | "Kernel has been shutdown permanently. " | |
506 | "Close the Console?", |
|
511 | "Close the Console?", | |
507 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) |
|
512 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) | |
508 | if reply == QtGui.QMessageBox.Yes: |
|
513 | if reply == QtGui.QMessageBox.Yes: | |
509 | self.exit_requested.emit(self) |
|
514 | self.exit_requested.emit(self) | |
510 | else: |
|
515 | else: | |
511 | reply = QtGui.QMessageBox.question(self, title, |
|
516 | reply = QtGui.QMessageBox.question(self, title, | |
512 | "Kernel has been reset. Clear the Console?", |
|
517 | "Kernel has been reset. Clear the Console?", | |
513 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) |
|
518 | QtGui.QMessageBox.Yes,QtGui.QMessageBox.No) | |
514 | if reply == QtGui.QMessageBox.Yes: |
|
519 | if reply == QtGui.QMessageBox.Yes: | |
515 | time.sleep(0.25) # wait 1/4 sec to reset |
|
520 | time.sleep(0.25) # wait 1/4 sec to reset | |
516 | # lest the request for a new prompt |
|
521 | # lest the request for a new prompt | |
517 | # goes to the old kernel |
|
522 | # goes to the old kernel | |
518 | self.reset() |
|
523 | self.reset() | |
519 |
|
524 | |||
520 | def _started_channels(self): |
|
525 | def _started_channels(self): | |
521 | """ Called when the KernelManager channels have started listening or |
|
526 | """ Called when the KernelManager channels have started listening or | |
522 | when the frontend is assigned an already listening KernelManager. |
|
527 | when the frontend is assigned an already listening KernelManager. | |
523 | """ |
|
528 | """ | |
524 | self.reset() |
|
529 | self.reset() | |
525 |
|
530 | |||
526 | #--------------------------------------------------------------------------- |
|
531 | #--------------------------------------------------------------------------- | |
527 | # 'FrontendWidget' public interface |
|
532 | # 'FrontendWidget' public interface | |
528 | #--------------------------------------------------------------------------- |
|
533 | #--------------------------------------------------------------------------- | |
529 |
|
534 | |||
530 | def copy_raw(self): |
|
535 | def copy_raw(self): | |
531 | """ Copy the currently selected text to the clipboard without attempting |
|
536 | """ Copy the currently selected text to the clipboard without attempting | |
532 | to remove prompts or otherwise alter the text. |
|
537 | to remove prompts or otherwise alter the text. | |
533 | """ |
|
538 | """ | |
534 | self._control.copy() |
|
539 | self._control.copy() | |
535 |
|
540 | |||
536 | def execute_file(self, path, hidden=False): |
|
541 | def execute_file(self, path, hidden=False): | |
537 | """ Attempts to execute file with 'path'. If 'hidden', no output is |
|
542 | """ Attempts to execute file with 'path'. If 'hidden', no output is | |
538 | shown. |
|
543 | shown. | |
539 | """ |
|
544 | """ | |
540 | self.execute('execfile(%r)' % path, hidden=hidden) |
|
545 | self.execute('execfile(%r)' % path, hidden=hidden) | |
541 |
|
546 | |||
542 | def interrupt_kernel(self): |
|
547 | def interrupt_kernel(self): | |
543 | """ Attempts to interrupt the running kernel. |
|
548 | """ Attempts to interrupt the running kernel. | |
544 |
|
549 | |||
545 | Also unsets _reading flag, to avoid runtime errors |
|
550 | Also unsets _reading flag, to avoid runtime errors | |
546 | if raw_input is called again. |
|
551 | if raw_input is called again. | |
547 | """ |
|
552 | """ | |
548 | if self.custom_interrupt: |
|
553 | if self.custom_interrupt: | |
549 | self._reading = False |
|
554 | self._reading = False | |
550 | self.custom_interrupt_requested.emit() |
|
555 | self.custom_interrupt_requested.emit() | |
551 | elif self.kernel_manager.has_kernel: |
|
556 | elif self.kernel_manager.has_kernel: | |
552 | self._reading = False |
|
557 | self._reading = False | |
553 | self.kernel_manager.interrupt_kernel() |
|
558 | self.kernel_manager.interrupt_kernel() | |
554 | else: |
|
559 | else: | |
555 | self._append_plain_text('Kernel process is either remote or ' |
|
560 | self._append_plain_text('Kernel process is either remote or ' | |
556 | 'unspecified. Cannot interrupt.\n') |
|
561 | 'unspecified. Cannot interrupt.\n') | |
557 |
|
562 | |||
558 | def reset(self): |
|
563 | def reset(self): | |
559 | """ Resets the widget to its initial state. Similar to ``clear``, but |
|
564 | """ Resets the widget to its initial state. Similar to ``clear``, but | |
560 | also re-writes the banner and aborts execution if necessary. |
|
565 | also re-writes the banner and aborts execution if necessary. | |
561 | """ |
|
566 | """ | |
562 | if self._executing: |
|
567 | if self._executing: | |
563 | self._executing = False |
|
568 | self._executing = False | |
564 | self._request_info['execute'] = {} |
|
569 | self._request_info['execute'] = {} | |
565 | self._reading = False |
|
570 | self._reading = False | |
566 | self._highlighter.highlighting_on = False |
|
571 | self._highlighter.highlighting_on = False | |
567 |
|
572 | |||
568 | self._control.clear() |
|
573 | self._control.clear() | |
569 | self._append_plain_text(self.banner) |
|
574 | self._append_plain_text(self.banner) | |
570 | # update output marker for stdout/stderr, so that startup |
|
575 | # update output marker for stdout/stderr, so that startup | |
571 | # messages appear after banner: |
|
576 | # messages appear after banner: | |
572 | self._append_before_prompt_pos = self._get_cursor().position() |
|
577 | self._append_before_prompt_pos = self._get_cursor().position() | |
573 | self._show_interpreter_prompt() |
|
578 | self._show_interpreter_prompt() | |
574 |
|
579 | |||
575 | def restart_kernel(self, message, now=False): |
|
580 | def restart_kernel(self, message, now=False): | |
576 | """ Attempts to restart the running kernel. |
|
581 | """ Attempts to restart the running kernel. | |
577 | """ |
|
582 | """ | |
578 | # FIXME: now should be configurable via a checkbox in the dialog. Right |
|
583 | # FIXME: now should be configurable via a checkbox in the dialog. Right | |
579 | # now at least the heartbeat path sets it to True and the manual restart |
|
584 | # now at least the heartbeat path sets it to True and the manual restart | |
580 | # to False. But those should just be the pre-selected states of a |
|
585 | # to False. But those should just be the pre-selected states of a | |
581 | # checkbox that the user could override if so desired. But I don't know |
|
586 | # checkbox that the user could override if so desired. But I don't know | |
582 | # enough Qt to go implementing the checkbox now. |
|
587 | # enough Qt to go implementing the checkbox now. | |
583 |
|
588 | |||
584 | if self.custom_restart: |
|
589 | if self.custom_restart: | |
585 | self.custom_restart_requested.emit() |
|
590 | self.custom_restart_requested.emit() | |
586 |
|
591 | |||
587 | elif self.kernel_manager.has_kernel: |
|
592 | elif self.kernel_manager.has_kernel: | |
588 | # Pause the heart beat channel to prevent further warnings. |
|
593 | # Pause the heart beat channel to prevent further warnings. | |
589 | self.kernel_manager.hb_channel.pause() |
|
594 | self.kernel_manager.hb_channel.pause() | |
590 |
|
595 | |||
591 | # Prompt the user to restart the kernel. Un-pause the heartbeat if |
|
596 | # Prompt the user to restart the kernel. Un-pause the heartbeat if | |
592 | # they decline. (If they accept, the heartbeat will be un-paused |
|
597 | # they decline. (If they accept, the heartbeat will be un-paused | |
593 | # automatically when the kernel is restarted.) |
|
598 | # automatically when the kernel is restarted.) | |
594 | buttons = QtGui.QMessageBox.Yes | QtGui.QMessageBox.No |
|
599 | buttons = QtGui.QMessageBox.Yes | QtGui.QMessageBox.No | |
595 | result = QtGui.QMessageBox.question(self, 'Restart kernel?', |
|
600 | result = QtGui.QMessageBox.question(self, 'Restart kernel?', | |
596 | message, buttons) |
|
601 | message, buttons) | |
597 | if result == QtGui.QMessageBox.Yes: |
|
602 | if result == QtGui.QMessageBox.Yes: | |
598 | try: |
|
603 | try: | |
599 | self.kernel_manager.restart_kernel(now=now) |
|
604 | self.kernel_manager.restart_kernel(now=now) | |
600 | except RuntimeError: |
|
605 | except RuntimeError: | |
601 | self._append_plain_text('Kernel started externally. ' |
|
606 | self._append_plain_text('Kernel started externally. ' | |
602 | 'Cannot restart.\n') |
|
607 | 'Cannot restart.\n') | |
603 | else: |
|
608 | else: | |
604 | self.reset() |
|
609 | self.reset() | |
605 | else: |
|
610 | else: | |
606 | self.kernel_manager.hb_channel.unpause() |
|
611 | self.kernel_manager.hb_channel.unpause() | |
607 |
|
612 | |||
608 | else: |
|
613 | else: | |
609 | self._append_plain_text('Kernel process is either remote or ' |
|
614 | self._append_plain_text('Kernel process is either remote or ' | |
610 | 'unspecified. Cannot restart.\n') |
|
615 | 'unspecified. Cannot restart.\n') | |
611 |
|
616 | |||
612 | #--------------------------------------------------------------------------- |
|
617 | #--------------------------------------------------------------------------- | |
613 | # 'FrontendWidget' protected interface |
|
618 | # 'FrontendWidget' protected interface | |
614 | #--------------------------------------------------------------------------- |
|
619 | #--------------------------------------------------------------------------- | |
615 |
|
620 | |||
616 | def _call_tip(self): |
|
621 | def _call_tip(self): | |
617 | """ Shows a call tip, if appropriate, at the current cursor location. |
|
622 | """ Shows a call tip, if appropriate, at the current cursor location. | |
618 | """ |
|
623 | """ | |
619 | # Decide if it makes sense to show a call tip |
|
624 | # Decide if it makes sense to show a call tip | |
620 | if not self.enable_calltips: |
|
625 | if not self.enable_calltips: | |
621 | return False |
|
626 | return False | |
622 | cursor = self._get_cursor() |
|
627 | cursor = self._get_cursor() | |
623 | cursor.movePosition(QtGui.QTextCursor.Left) |
|
628 | cursor.movePosition(QtGui.QTextCursor.Left) | |
624 | if cursor.document().characterAt(cursor.position()) != '(': |
|
629 | if cursor.document().characterAt(cursor.position()) != '(': | |
625 | return False |
|
630 | return False | |
626 | context = self._get_context(cursor) |
|
631 | context = self._get_context(cursor) | |
627 | if not context: |
|
632 | if not context: | |
628 | return False |
|
633 | return False | |
629 |
|
634 | |||
630 | # Send the metadata request to the kernel |
|
635 | # Send the metadata request to the kernel | |
631 | name = '.'.join(context) |
|
636 | name = '.'.join(context) | |
632 | msg_id = self.kernel_manager.shell_channel.object_info(name) |
|
637 | msg_id = self.kernel_manager.shell_channel.object_info(name) | |
633 | pos = self._get_cursor().position() |
|
638 | pos = self._get_cursor().position() | |
634 | self._request_info['call_tip'] = self._CallTipRequest(msg_id, pos) |
|
639 | self._request_info['call_tip'] = self._CallTipRequest(msg_id, pos) | |
635 | return True |
|
640 | return True | |
636 |
|
641 | |||
637 | def _complete(self): |
|
642 | def _complete(self): | |
638 | """ Performs completion at the current cursor location. |
|
643 | """ Performs completion at the current cursor location. | |
639 | """ |
|
644 | """ | |
640 | context = self._get_context() |
|
645 | context = self._get_context() | |
641 | if context: |
|
646 | if context: | |
642 | # Send the completion request to the kernel |
|
647 | # Send the completion request to the kernel | |
643 | msg_id = self.kernel_manager.shell_channel.complete( |
|
648 | msg_id = self.kernel_manager.shell_channel.complete( | |
644 | '.'.join(context), # text |
|
649 | '.'.join(context), # text | |
645 | self._get_input_buffer_cursor_line(), # line |
|
650 | self._get_input_buffer_cursor_line(), # line | |
646 | self._get_input_buffer_cursor_column(), # cursor_pos |
|
651 | self._get_input_buffer_cursor_column(), # cursor_pos | |
647 | self.input_buffer) # block |
|
652 | self.input_buffer) # block | |
648 | pos = self._get_cursor().position() |
|
653 | pos = self._get_cursor().position() | |
649 | info = self._CompletionRequest(msg_id, pos) |
|
654 | info = self._CompletionRequest(msg_id, pos) | |
650 | self._request_info['complete'] = info |
|
655 | self._request_info['complete'] = info | |
651 |
|
656 | |||
652 | def _get_context(self, cursor=None): |
|
657 | def _get_context(self, cursor=None): | |
653 | """ Gets the context for the specified cursor (or the current cursor |
|
658 | """ Gets the context for the specified cursor (or the current cursor | |
654 | if none is specified). |
|
659 | if none is specified). | |
655 | """ |
|
660 | """ | |
656 | if cursor is None: |
|
661 | if cursor is None: | |
657 | cursor = self._get_cursor() |
|
662 | cursor = self._get_cursor() | |
658 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, |
|
663 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, | |
659 | QtGui.QTextCursor.KeepAnchor) |
|
664 | QtGui.QTextCursor.KeepAnchor) | |
660 | text = cursor.selection().toPlainText() |
|
665 | text = cursor.selection().toPlainText() | |
661 | return self._completion_lexer.get_context(text) |
|
666 | return self._completion_lexer.get_context(text) | |
662 |
|
667 | |||
663 | def _process_execute_abort(self, msg): |
|
668 | def _process_execute_abort(self, msg): | |
664 | """ Process a reply for an aborted execution request. |
|
669 | """ Process a reply for an aborted execution request. | |
665 | """ |
|
670 | """ | |
666 | self._append_plain_text("ERROR: execution aborted\n") |
|
671 | self._append_plain_text("ERROR: execution aborted\n") | |
667 |
|
672 | |||
668 | def _process_execute_error(self, msg): |
|
673 | def _process_execute_error(self, msg): | |
669 | """ Process a reply for an execution request that resulted in an error. |
|
674 | """ Process a reply for an execution request that resulted in an error. | |
670 | """ |
|
675 | """ | |
671 | content = msg['content'] |
|
676 | content = msg['content'] | |
672 | # If a SystemExit is passed along, this means exit() was called - also |
|
677 | # If a SystemExit is passed along, this means exit() was called - also | |
673 | # all the ipython %exit magic syntax of '-k' to be used to keep |
|
678 | # all the ipython %exit magic syntax of '-k' to be used to keep | |
674 | # the kernel running |
|
679 | # the kernel running | |
675 | if content['ename']=='SystemExit': |
|
680 | if content['ename']=='SystemExit': | |
676 | keepkernel = content['evalue']=='-k' or content['evalue']=='True' |
|
681 | keepkernel = content['evalue']=='-k' or content['evalue']=='True' | |
677 | self._keep_kernel_on_exit = keepkernel |
|
682 | self._keep_kernel_on_exit = keepkernel | |
678 | self.exit_requested.emit(self) |
|
683 | self.exit_requested.emit(self) | |
679 | else: |
|
684 | else: | |
680 | traceback = ''.join(content['traceback']) |
|
685 | traceback = ''.join(content['traceback']) | |
681 | self._append_plain_text(traceback) |
|
686 | self._append_plain_text(traceback) | |
682 |
|
687 | |||
683 | def _process_execute_ok(self, msg): |
|
688 | def _process_execute_ok(self, msg): | |
684 | """ Process a reply for a successful execution equest. |
|
689 | """ Process a reply for a successful execution equest. | |
685 | """ |
|
690 | """ | |
686 | payload = msg['content']['payload'] |
|
691 | payload = msg['content']['payload'] | |
687 | for item in payload: |
|
692 | for item in payload: | |
688 | if not self._process_execute_payload(item): |
|
693 | if not self._process_execute_payload(item): | |
689 | warning = 'Warning: received unknown payload of type %s' |
|
694 | warning = 'Warning: received unknown payload of type %s' | |
690 | print(warning % repr(item['source'])) |
|
695 | print(warning % repr(item['source'])) | |
691 |
|
696 | |||
692 | def _process_execute_payload(self, item): |
|
697 | def _process_execute_payload(self, item): | |
693 | """ Process a single payload item from the list of payload items in an |
|
698 | """ Process a single payload item from the list of payload items in an | |
694 | execution reply. Returns whether the payload was handled. |
|
699 | execution reply. Returns whether the payload was handled. | |
695 | """ |
|
700 | """ | |
696 | # The basic FrontendWidget doesn't handle payloads, as they are a |
|
701 | # The basic FrontendWidget doesn't handle payloads, as they are a | |
697 | # mechanism for going beyond the standard Python interpreter model. |
|
702 | # mechanism for going beyond the standard Python interpreter model. | |
698 | return False |
|
703 | return False | |
699 |
|
704 | |||
700 | def _show_interpreter_prompt(self): |
|
705 | def _show_interpreter_prompt(self): | |
701 | """ Shows a prompt for the interpreter. |
|
706 | """ Shows a prompt for the interpreter. | |
702 | """ |
|
707 | """ | |
703 | self._show_prompt('>>> ') |
|
708 | self._show_prompt('>>> ') | |
704 |
|
709 | |||
705 | def _show_interpreter_prompt_for_reply(self, msg): |
|
710 | def _show_interpreter_prompt_for_reply(self, msg): | |
706 | """ Shows a prompt for the interpreter given an 'execute_reply' message. |
|
711 | """ Shows a prompt for the interpreter given an 'execute_reply' message. | |
707 | """ |
|
712 | """ | |
708 | self._show_interpreter_prompt() |
|
713 | self._show_interpreter_prompt() | |
709 |
|
714 | |||
710 | #------ Signal handlers ---------------------------------------------------- |
|
715 | #------ Signal handlers ---------------------------------------------------- | |
711 |
|
716 | |||
712 | def _document_contents_change(self, position, removed, added): |
|
717 | def _document_contents_change(self, position, removed, added): | |
713 | """ Called whenever the document's content changes. Display a call tip |
|
718 | """ Called whenever the document's content changes. Display a call tip | |
714 | if appropriate. |
|
719 | if appropriate. | |
715 | """ |
|
720 | """ | |
716 | # Calculate where the cursor should be *after* the change: |
|
721 | # Calculate where the cursor should be *after* the change: | |
717 | position += added |
|
722 | position += added | |
718 |
|
723 | |||
719 | document = self._control.document() |
|
724 | document = self._control.document() | |
720 | if position == self._get_cursor().position(): |
|
725 | if position == self._get_cursor().position(): | |
721 | self._call_tip() |
|
726 | self._call_tip() | |
722 |
|
727 | |||
723 | #------ Trait default initializers ----------------------------------------- |
|
728 | #------ Trait default initializers ----------------------------------------- | |
724 |
|
729 | |||
725 | def _banner_default(self): |
|
730 | def _banner_default(self): | |
726 | """ Returns the standard Python banner. |
|
731 | """ Returns the standard Python banner. | |
727 | """ |
|
732 | """ | |
728 | banner = 'Python %s on %s\nType "help", "copyright", "credits" or ' \ |
|
733 | banner = 'Python %s on %s\nType "help", "copyright", "credits" or ' \ | |
729 | '"license" for more information.' |
|
734 | '"license" for more information.' | |
730 | return banner % (sys.version, sys.platform) |
|
735 | return banner % (sys.version, sys.platform) |
@@ -1,563 +1,569 b'' | |||||
1 | """ A FrontendWidget that emulates the interface of the console IPython and |
|
1 | """ A FrontendWidget that emulates the interface of the console IPython and | |
2 | supports the additional functionality provided by the IPython kernel. |
|
2 | supports the additional functionality provided by the IPython kernel. | |
3 | """ |
|
3 | """ | |
4 |
|
4 | |||
5 | #----------------------------------------------------------------------------- |
|
5 | #----------------------------------------------------------------------------- | |
6 | # Imports |
|
6 | # Imports | |
7 | #----------------------------------------------------------------------------- |
|
7 | #----------------------------------------------------------------------------- | |
8 |
|
8 | |||
9 | # Standard library imports |
|
9 | # Standard library imports | |
10 | from collections import namedtuple |
|
10 | from collections import namedtuple | |
11 | import os.path |
|
11 | import os.path | |
12 | import re |
|
12 | import re | |
13 | from subprocess import Popen |
|
13 | from subprocess import Popen | |
14 | import sys |
|
14 | import sys | |
15 | import time |
|
15 | import time | |
16 | from textwrap import dedent |
|
16 | from textwrap import dedent | |
17 |
|
17 | |||
18 | # System library imports |
|
18 | # System library imports | |
19 | from IPython.external.qt import QtCore, QtGui |
|
19 | from IPython.external.qt import QtCore, QtGui | |
20 |
|
20 | |||
21 | # Local imports |
|
21 | # Local imports | |
22 | from IPython.core.inputsplitter import IPythonInputSplitter, \ |
|
22 | from IPython.core.inputsplitter import IPythonInputSplitter, \ | |
23 | transform_ipy_prompt |
|
23 | transform_ipy_prompt | |
24 | from IPython.utils.traitlets import Bool, Unicode |
|
24 | from IPython.utils.traitlets import Bool, Unicode | |
25 | from frontend_widget import FrontendWidget |
|
25 | from frontend_widget import FrontendWidget | |
26 | import styles |
|
26 | import styles | |
27 |
|
27 | |||
28 | #----------------------------------------------------------------------------- |
|
28 | #----------------------------------------------------------------------------- | |
29 | # Constants |
|
29 | # Constants | |
30 | #----------------------------------------------------------------------------- |
|
30 | #----------------------------------------------------------------------------- | |
31 |
|
31 | |||
32 | # Default strings to build and display input and output prompts (and separators |
|
32 | # Default strings to build and display input and output prompts (and separators | |
33 | # in between) |
|
33 | # in between) | |
34 | default_in_prompt = 'In [<span class="in-prompt-number">%i</span>]: ' |
|
34 | default_in_prompt = 'In [<span class="in-prompt-number">%i</span>]: ' | |
35 | default_out_prompt = 'Out[<span class="out-prompt-number">%i</span>]: ' |
|
35 | default_out_prompt = 'Out[<span class="out-prompt-number">%i</span>]: ' | |
36 | default_input_sep = '\n' |
|
36 | default_input_sep = '\n' | |
37 | default_output_sep = '' |
|
37 | default_output_sep = '' | |
38 | default_output_sep2 = '' |
|
38 | default_output_sep2 = '' | |
39 |
|
39 | |||
40 | # Base path for most payload sources. |
|
40 | # Base path for most payload sources. | |
41 | zmq_shell_source = 'IPython.zmq.zmqshell.ZMQInteractiveShell' |
|
41 | zmq_shell_source = 'IPython.zmq.zmqshell.ZMQInteractiveShell' | |
42 |
|
42 | |||
43 | if sys.platform.startswith('win'): |
|
43 | if sys.platform.startswith('win'): | |
44 | default_editor = 'notepad' |
|
44 | default_editor = 'notepad' | |
45 | else: |
|
45 | else: | |
46 | default_editor = '' |
|
46 | default_editor = '' | |
47 |
|
47 | |||
48 | #----------------------------------------------------------------------------- |
|
48 | #----------------------------------------------------------------------------- | |
49 | # IPythonWidget class |
|
49 | # IPythonWidget class | |
50 | #----------------------------------------------------------------------------- |
|
50 | #----------------------------------------------------------------------------- | |
51 |
|
51 | |||
52 | class IPythonWidget(FrontendWidget): |
|
52 | class IPythonWidget(FrontendWidget): | |
53 | """ A FrontendWidget for an IPython kernel. |
|
53 | """ A FrontendWidget for an IPython kernel. | |
54 | """ |
|
54 | """ | |
55 |
|
55 | |||
56 | # If set, the 'custom_edit_requested(str, int)' signal will be emitted when |
|
56 | # If set, the 'custom_edit_requested(str, int)' signal will be emitted when | |
57 | # an editor is needed for a file. This overrides 'editor' and 'editor_line' |
|
57 | # an editor is needed for a file. This overrides 'editor' and 'editor_line' | |
58 | # settings. |
|
58 | # settings. | |
59 | custom_edit = Bool(False) |
|
59 | custom_edit = Bool(False) | |
60 | custom_edit_requested = QtCore.Signal(object, object) |
|
60 | custom_edit_requested = QtCore.Signal(object, object) | |
61 |
|
61 | |||
62 | editor = Unicode(default_editor, config=True, |
|
62 | editor = Unicode(default_editor, config=True, | |
63 | help=""" |
|
63 | help=""" | |
64 | A command for invoking a system text editor. If the string contains a |
|
64 | A command for invoking a system text editor. If the string contains a | |
65 | {filename} format specifier, it will be used. Otherwise, the filename |
|
65 | {filename} format specifier, it will be used. Otherwise, the filename | |
66 | will be appended to the end the command. |
|
66 | will be appended to the end the command. | |
67 | """) |
|
67 | """) | |
68 |
|
68 | |||
69 | editor_line = Unicode(config=True, |
|
69 | editor_line = Unicode(config=True, | |
70 | help=""" |
|
70 | help=""" | |
71 | The editor command to use when a specific line number is requested. The |
|
71 | The editor command to use when a specific line number is requested. The | |
72 | string should contain two format specifiers: {line} and {filename}. If |
|
72 | string should contain two format specifiers: {line} and {filename}. If | |
73 | this parameter is not specified, the line number option to the %edit |
|
73 | this parameter is not specified, the line number option to the %edit | |
74 | magic will be ignored. |
|
74 | magic will be ignored. | |
75 | """) |
|
75 | """) | |
76 |
|
76 | |||
77 | style_sheet = Unicode(config=True, |
|
77 | style_sheet = Unicode(config=True, | |
78 | help=""" |
|
78 | help=""" | |
79 | A CSS stylesheet. The stylesheet can contain classes for: |
|
79 | A CSS stylesheet. The stylesheet can contain classes for: | |
80 | 1. Qt: QPlainTextEdit, QFrame, QWidget, etc |
|
80 | 1. Qt: QPlainTextEdit, QFrame, QWidget, etc | |
81 | 2. Pygments: .c, .k, .o, etc. (see PygmentsHighlighter) |
|
81 | 2. Pygments: .c, .k, .o, etc. (see PygmentsHighlighter) | |
82 | 3. IPython: .error, .in-prompt, .out-prompt, etc |
|
82 | 3. IPython: .error, .in-prompt, .out-prompt, etc | |
83 | """) |
|
83 | """) | |
84 |
|
84 | |||
85 | syntax_style = Unicode(config=True, |
|
85 | syntax_style = Unicode(config=True, | |
86 | help=""" |
|
86 | help=""" | |
87 | If not empty, use this Pygments style for syntax highlighting. |
|
87 | If not empty, use this Pygments style for syntax highlighting. | |
88 | Otherwise, the style sheet is queried for Pygments style |
|
88 | Otherwise, the style sheet is queried for Pygments style | |
89 | information. |
|
89 | information. | |
90 | """) |
|
90 | """) | |
91 |
|
91 | |||
92 | # Prompts. |
|
92 | # Prompts. | |
93 | in_prompt = Unicode(default_in_prompt, config=True) |
|
93 | in_prompt = Unicode(default_in_prompt, config=True) | |
94 | out_prompt = Unicode(default_out_prompt, config=True) |
|
94 | out_prompt = Unicode(default_out_prompt, config=True) | |
95 | input_sep = Unicode(default_input_sep, config=True) |
|
95 | input_sep = Unicode(default_input_sep, config=True) | |
96 | output_sep = Unicode(default_output_sep, config=True) |
|
96 | output_sep = Unicode(default_output_sep, config=True) | |
97 | output_sep2 = Unicode(default_output_sep2, config=True) |
|
97 | output_sep2 = Unicode(default_output_sep2, config=True) | |
98 |
|
98 | |||
99 | # FrontendWidget protected class variables. |
|
99 | # FrontendWidget protected class variables. | |
100 | _input_splitter_class = IPythonInputSplitter |
|
100 | _input_splitter_class = IPythonInputSplitter | |
101 |
|
101 | |||
102 | # IPythonWidget protected class variables. |
|
102 | # IPythonWidget protected class variables. | |
103 | _PromptBlock = namedtuple('_PromptBlock', ['block', 'length', 'number']) |
|
103 | _PromptBlock = namedtuple('_PromptBlock', ['block', 'length', 'number']) | |
104 | _payload_source_edit = zmq_shell_source + '.edit_magic' |
|
104 | _payload_source_edit = zmq_shell_source + '.edit_magic' | |
105 | _payload_source_exit = zmq_shell_source + '.ask_exit' |
|
105 | _payload_source_exit = zmq_shell_source + '.ask_exit' | |
106 | _payload_source_next_input = zmq_shell_source + '.set_next_input' |
|
106 | _payload_source_next_input = zmq_shell_source + '.set_next_input' | |
107 | _payload_source_page = 'IPython.zmq.page.page' |
|
107 | _payload_source_page = 'IPython.zmq.page.page' | |
108 | _retrying_history_request = False |
|
108 | _retrying_history_request = False | |
109 |
|
109 | |||
110 | #--------------------------------------------------------------------------- |
|
110 | #--------------------------------------------------------------------------- | |
111 | # 'object' interface |
|
111 | # 'object' interface | |
112 | #--------------------------------------------------------------------------- |
|
112 | #--------------------------------------------------------------------------- | |
113 |
|
113 | |||
114 | def __init__(self, *args, **kw): |
|
114 | def __init__(self, *args, **kw): | |
115 | super(IPythonWidget, self).__init__(*args, **kw) |
|
115 | super(IPythonWidget, self).__init__(*args, **kw) | |
116 |
|
116 | |||
117 | # IPythonWidget protected variables. |
|
117 | # IPythonWidget protected variables. | |
118 | self._payload_handlers = { |
|
118 | self._payload_handlers = { | |
119 | self._payload_source_edit : self._handle_payload_edit, |
|
119 | self._payload_source_edit : self._handle_payload_edit, | |
120 | self._payload_source_exit : self._handle_payload_exit, |
|
120 | self._payload_source_exit : self._handle_payload_exit, | |
121 | self._payload_source_page : self._handle_payload_page, |
|
121 | self._payload_source_page : self._handle_payload_page, | |
122 | self._payload_source_next_input : self._handle_payload_next_input } |
|
122 | self._payload_source_next_input : self._handle_payload_next_input } | |
123 | self._previous_prompt_obj = None |
|
123 | self._previous_prompt_obj = None | |
124 | self._keep_kernel_on_exit = None |
|
124 | self._keep_kernel_on_exit = None | |
125 |
|
125 | |||
126 | # Initialize widget styling. |
|
126 | # Initialize widget styling. | |
127 | if self.style_sheet: |
|
127 | if self.style_sheet: | |
128 | self._style_sheet_changed() |
|
128 | self._style_sheet_changed() | |
129 | self._syntax_style_changed() |
|
129 | self._syntax_style_changed() | |
130 | else: |
|
130 | else: | |
131 | self.set_default_style() |
|
131 | self.set_default_style() | |
132 |
|
132 | |||
133 | #--------------------------------------------------------------------------- |
|
133 | #--------------------------------------------------------------------------- | |
134 | # 'BaseFrontendMixin' abstract interface |
|
134 | # 'BaseFrontendMixin' abstract interface | |
135 | #--------------------------------------------------------------------------- |
|
135 | #--------------------------------------------------------------------------- | |
136 |
|
136 | |||
137 | def _handle_complete_reply(self, rep): |
|
137 | def _handle_complete_reply(self, rep): | |
138 | """ Reimplemented to support IPython's improved completion machinery. |
|
138 | """ Reimplemented to support IPython's improved completion machinery. | |
139 | """ |
|
139 | """ | |
140 | self.log.debug("complete: %s", rep.get('content', '')) |
|
140 | self.log.debug("complete: %s", rep.get('content', '')) | |
141 | cursor = self._get_cursor() |
|
141 | cursor = self._get_cursor() | |
142 | info = self._request_info.get('complete') |
|
142 | info = self._request_info.get('complete') | |
143 | if info and info.id == rep['parent_header']['msg_id'] and \ |
|
143 | if info and info.id == rep['parent_header']['msg_id'] and \ | |
144 | info.pos == cursor.position(): |
|
144 | info.pos == cursor.position(): | |
145 | matches = rep['content']['matches'] |
|
145 | matches = rep['content']['matches'] | |
146 | text = rep['content']['matched_text'] |
|
146 | text = rep['content']['matched_text'] | |
147 | offset = len(text) |
|
147 | offset = len(text) | |
148 |
|
148 | |||
149 | # Clean up matches with period and path separators if the matched |
|
149 | # Clean up matches with period and path separators if the matched | |
150 | # text has not been transformed. This is done by truncating all |
|
150 | # text has not been transformed. This is done by truncating all | |
151 | # but the last component and then suitably decreasing the offset |
|
151 | # but the last component and then suitably decreasing the offset | |
152 | # between the current cursor position and the start of completion. |
|
152 | # between the current cursor position and the start of completion. | |
153 | if len(matches) > 1 and matches[0][:offset] == text: |
|
153 | if len(matches) > 1 and matches[0][:offset] == text: | |
154 | parts = re.split(r'[./\\]', text) |
|
154 | parts = re.split(r'[./\\]', text) | |
155 | sep_count = len(parts) - 1 |
|
155 | sep_count = len(parts) - 1 | |
156 | if sep_count: |
|
156 | if sep_count: | |
157 | chop_length = sum(map(len, parts[:sep_count])) + sep_count |
|
157 | chop_length = sum(map(len, parts[:sep_count])) + sep_count | |
158 | matches = [ match[chop_length:] for match in matches ] |
|
158 | matches = [ match[chop_length:] for match in matches ] | |
159 | offset -= chop_length |
|
159 | offset -= chop_length | |
160 |
|
160 | |||
161 | # Move the cursor to the start of the match and complete. |
|
161 | # Move the cursor to the start of the match and complete. | |
162 | cursor.movePosition(QtGui.QTextCursor.Left, n=offset) |
|
162 | cursor.movePosition(QtGui.QTextCursor.Left, n=offset) | |
163 | self._complete_with_items(cursor, matches) |
|
163 | self._complete_with_items(cursor, matches) | |
164 |
|
164 | |||
165 | def _handle_execute_reply(self, msg): |
|
165 | def _handle_execute_reply(self, msg): | |
166 | """ Reimplemented to support prompt requests. |
|
166 | """ Reimplemented to support prompt requests. | |
167 | """ |
|
167 | """ | |
168 | msg_id = msg['parent_header'].get('msg_id') |
|
168 | msg_id = msg['parent_header'].get('msg_id') | |
169 | info = self._request_info['execute'].get(msg_id) |
|
169 | info = self._request_info['execute'].get(msg_id) | |
170 | if info and info.kind == 'prompt': |
|
170 | if info and info.kind == 'prompt': | |
171 | number = msg['content']['execution_count'] + 1 |
|
171 | number = msg['content']['execution_count'] + 1 | |
172 | self._show_interpreter_prompt(number) |
|
172 | self._show_interpreter_prompt(number) | |
173 | self._request_info['execute'].pop(msg_id) |
|
173 | self._request_info['execute'].pop(msg_id) | |
174 | else: |
|
174 | else: | |
175 | super(IPythonWidget, self)._handle_execute_reply(msg) |
|
175 | super(IPythonWidget, self)._handle_execute_reply(msg) | |
176 |
|
176 | |||
177 | def _handle_history_reply(self, msg): |
|
177 | def _handle_history_reply(self, msg): | |
178 | """ Implemented to handle history tail replies, which are only supported |
|
178 | """ Implemented to handle history tail replies, which are only supported | |
179 | by the IPython kernel. |
|
179 | by the IPython kernel. | |
180 | """ |
|
180 | """ | |
181 | self.log.debug("history: %s", msg.get('content', '')) |
|
181 | self.log.debug("history: %s", msg.get('content', '')) | |
182 | content = msg['content'] |
|
182 | content = msg['content'] | |
183 | if 'history' not in content: |
|
183 | if 'history' not in content: | |
184 | self.log.error("History request failed: %r"%content) |
|
184 | self.log.error("History request failed: %r"%content) | |
185 | if content.get('status', '') == 'aborted' and \ |
|
185 | if content.get('status', '') == 'aborted' and \ | |
186 | not self._retrying_history_request: |
|
186 | not self._retrying_history_request: | |
187 | # a *different* action caused this request to be aborted, so |
|
187 | # a *different* action caused this request to be aborted, so | |
188 | # we should try again. |
|
188 | # we should try again. | |
189 | self.log.error("Retrying aborted history request") |
|
189 | self.log.error("Retrying aborted history request") | |
190 | # prevent multiple retries of aborted requests: |
|
190 | # prevent multiple retries of aborted requests: | |
191 | self._retrying_history_request = True |
|
191 | self._retrying_history_request = True | |
192 | # wait out the kernel's queue flush, which is currently timed at 0.1s |
|
192 | # wait out the kernel's queue flush, which is currently timed at 0.1s | |
193 | time.sleep(0.25) |
|
193 | time.sleep(0.25) | |
194 | self.kernel_manager.shell_channel.history(hist_access_type='tail',n=1000) |
|
194 | self.kernel_manager.shell_channel.history(hist_access_type='tail',n=1000) | |
195 | else: |
|
195 | else: | |
196 | self._retrying_history_request = False |
|
196 | self._retrying_history_request = False | |
197 | return |
|
197 | return | |
198 | # reset retry flag |
|
198 | # reset retry flag | |
199 | self._retrying_history_request = False |
|
199 | self._retrying_history_request = False | |
200 | history_items = content['history'] |
|
200 | history_items = content['history'] | |
201 | items = [] |
|
201 | items = [] | |
202 | last_cell = u"" |
|
202 | last_cell = u"" | |
203 | for _, _, cell in history_items: |
|
203 | for _, _, cell in history_items: | |
204 | cell = cell.rstrip() |
|
204 | cell = cell.rstrip() | |
205 | if cell != last_cell: |
|
205 | if cell != last_cell: | |
206 | items.append(cell) |
|
206 | items.append(cell) | |
207 | last_cell = cell |
|
207 | last_cell = cell | |
208 | self._set_history(items) |
|
208 | self._set_history(items) | |
209 |
|
209 | |||
210 | def _handle_pyout(self, msg): |
|
210 | def _handle_pyout(self, msg): | |
211 | """ Reimplemented for IPython-style "display hook". |
|
211 | """ Reimplemented for IPython-style "display hook". | |
212 | """ |
|
212 | """ | |
213 | self.log.debug("pyout: %s", msg.get('content', '')) |
|
213 | self.log.debug("pyout: %s", msg.get('content', '')) | |
214 | if not self._hidden and self._is_from_this_session(msg): |
|
214 | if not self._hidden and self._is_from_this_session(msg): | |
215 | content = msg['content'] |
|
215 | content = msg['content'] | |
216 | prompt_number = content['execution_count'] |
|
216 | prompt_number = content['execution_count'] | |
217 | data = content['data'] |
|
217 | data = content['data'] | |
218 | if data.has_key('text/html'): |
|
218 | if data.has_key('text/html'): | |
219 | self._append_plain_text(self.output_sep, True) |
|
219 | self._append_plain_text(self.output_sep, True) | |
220 | self._append_html(self._make_out_prompt(prompt_number), True) |
|
220 | self._append_html(self._make_out_prompt(prompt_number), True) | |
221 | html = data['text/html'] |
|
221 | html = data['text/html'] | |
222 | self._append_plain_text('\n', True) |
|
222 | self._append_plain_text('\n', True) | |
223 | self._append_html(html + self.output_sep2, True) |
|
223 | self._append_html(html + self.output_sep2, True) | |
224 | elif data.has_key('text/plain'): |
|
224 | elif data.has_key('text/plain'): | |
225 | self._append_plain_text(self.output_sep, True) |
|
225 | self._append_plain_text(self.output_sep, True) | |
226 | self._append_html(self._make_out_prompt(prompt_number), True) |
|
226 | self._append_html(self._make_out_prompt(prompt_number), True) | |
227 | text = data['text/plain'] |
|
227 | text = data['text/plain'] | |
228 | # If the repr is multiline, make sure we start on a new line, |
|
228 | # If the repr is multiline, make sure we start on a new line, | |
229 | # so that its lines are aligned. |
|
229 | # so that its lines are aligned. | |
230 | if "\n" in text and not self.output_sep.endswith("\n"): |
|
230 | if "\n" in text and not self.output_sep.endswith("\n"): | |
231 | self._append_plain_text('\n', True) |
|
231 | self._append_plain_text('\n', True) | |
232 | self._append_plain_text(text + self.output_sep2, True) |
|
232 | self._append_plain_text(text + self.output_sep2, True) | |
233 |
|
233 | |||
234 | def _handle_display_data(self, msg): |
|
234 | def _handle_display_data(self, msg): | |
235 | """ The base handler for the ``display_data`` message. |
|
235 | """ The base handler for the ``display_data`` message. | |
236 | """ |
|
236 | """ | |
237 | self.log.debug("display: %s", msg.get('content', '')) |
|
237 | self.log.debug("display: %s", msg.get('content', '')) | |
238 | # For now, we don't display data from other frontends, but we |
|
238 | # For now, we don't display data from other frontends, but we | |
239 | # eventually will as this allows all frontends to monitor the display |
|
239 | # eventually will as this allows all frontends to monitor the display | |
240 | # data. But we need to figure out how to handle this in the GUI. |
|
240 | # data. But we need to figure out how to handle this in the GUI. | |
241 | if not self._hidden and self._is_from_this_session(msg): |
|
241 | if not self._hidden and self._is_from_this_session(msg): | |
242 | source = msg['content']['source'] |
|
242 | source = msg['content']['source'] | |
243 | data = msg['content']['data'] |
|
243 | data = msg['content']['data'] | |
244 | metadata = msg['content']['metadata'] |
|
244 | metadata = msg['content']['metadata'] | |
245 | # In the regular IPythonWidget, we simply print the plain text |
|
245 | # In the regular IPythonWidget, we simply print the plain text | |
246 | # representation. |
|
246 | # representation. | |
247 | if data.has_key('text/html'): |
|
247 | if data.has_key('text/html'): | |
248 | html = data['text/html'] |
|
248 | html = data['text/html'] | |
249 | self._append_html(html, True) |
|
249 | self._append_html(html, True) | |
250 | elif data.has_key('text/plain'): |
|
250 | elif data.has_key('text/plain'): | |
251 | text = data['text/plain'] |
|
251 | text = data['text/plain'] | |
252 | self._append_plain_text(text, True) |
|
252 | self._append_plain_text(text, True) | |
253 | # This newline seems to be needed for text and html output. |
|
253 | # This newline seems to be needed for text and html output. | |
254 | self._append_plain_text(u'\n', True) |
|
254 | self._append_plain_text(u'\n', True) | |
255 |
|
255 | |||
256 | def _started_channels(self): |
|
256 | def _started_channels(self): | |
257 | """ Reimplemented to make a history request. |
|
257 | """ Reimplemented to make a history request. | |
258 | """ |
|
258 | """ | |
259 | super(IPythonWidget, self)._started_channels() |
|
259 | super(IPythonWidget, self)._started_channels() | |
260 | self.kernel_manager.shell_channel.history(hist_access_type='tail', |
|
260 | self.kernel_manager.shell_channel.history(hist_access_type='tail', | |
261 | n=1000) |
|
261 | n=1000) | |
262 | #--------------------------------------------------------------------------- |
|
262 | #--------------------------------------------------------------------------- | |
263 | # 'ConsoleWidget' public interface |
|
263 | # 'ConsoleWidget' public interface | |
264 | #--------------------------------------------------------------------------- |
|
264 | #--------------------------------------------------------------------------- | |
265 |
|
265 | |||
266 | def copy(self): |
|
266 | def copy(self): | |
267 | """ Copy the currently selected text to the clipboard, removing prompts |
|
267 | """ Copy the currently selected text to the clipboard, removing prompts | |
268 | if possible. |
|
268 | if possible. | |
269 | """ |
|
269 | """ | |
270 | text = self._control.textCursor().selection().toPlainText() |
|
270 | if self.layout().currentWidget() == self._page_control : | |
271 | if text: |
|
271 | self._page_control.copy() | |
272 | lines = map(transform_ipy_prompt, text.splitlines()) |
|
272 | elif self.layout().currentWidget() == self._control : | |
273 | text = '\n'.join(lines) |
|
273 | text = self._control.textCursor().selection().toPlainText() | |
274 | QtGui.QApplication.clipboard().setText(text) |
|
274 | if text: | |
|
275 | lines = map(transform_ipy_prompt, text.splitlines()) | |||
|
276 | text = '\n'.join(lines) | |||
|
277 | QtGui.QApplication.clipboard().setText(text) | |||
|
278 | else : | |||
|
279 | self.log.debug("ipython_widget : unknown copy taget") | |||
|
280 | ||||
275 |
|
281 | |||
276 | #--------------------------------------------------------------------------- |
|
282 | #--------------------------------------------------------------------------- | |
277 | # 'FrontendWidget' public interface |
|
283 | # 'FrontendWidget' public interface | |
278 | #--------------------------------------------------------------------------- |
|
284 | #--------------------------------------------------------------------------- | |
279 |
|
285 | |||
280 | def execute_file(self, path, hidden=False): |
|
286 | def execute_file(self, path, hidden=False): | |
281 | """ Reimplemented to use the 'run' magic. |
|
287 | """ Reimplemented to use the 'run' magic. | |
282 | """ |
|
288 | """ | |
283 | # Use forward slashes on Windows to avoid escaping each separator. |
|
289 | # Use forward slashes on Windows to avoid escaping each separator. | |
284 | if sys.platform == 'win32': |
|
290 | if sys.platform == 'win32': | |
285 | path = os.path.normpath(path).replace('\\', '/') |
|
291 | path = os.path.normpath(path).replace('\\', '/') | |
286 |
|
292 | |||
287 | # Perhaps we should not be using %run directly, but while we |
|
293 | # Perhaps we should not be using %run directly, but while we | |
288 | # are, it is necessary to quote filenames containing spaces or quotes. |
|
294 | # are, it is necessary to quote filenames containing spaces or quotes. | |
289 | # Escaping quotes in filename in %run seems tricky and inconsistent, |
|
295 | # Escaping quotes in filename in %run seems tricky and inconsistent, | |
290 | # so not trying it at present. |
|
296 | # so not trying it at present. | |
291 | if '"' in path: |
|
297 | if '"' in path: | |
292 | if "'" in path: |
|
298 | if "'" in path: | |
293 | raise ValueError("Can't run filename containing both single " |
|
299 | raise ValueError("Can't run filename containing both single " | |
294 | "and double quotes: %s" % path) |
|
300 | "and double quotes: %s" % path) | |
295 | path = "'%s'" % path |
|
301 | path = "'%s'" % path | |
296 | elif ' ' in path or "'" in path: |
|
302 | elif ' ' in path or "'" in path: | |
297 | path = '"%s"' % path |
|
303 | path = '"%s"' % path | |
298 |
|
304 | |||
299 | self.execute('%%run %s' % path, hidden=hidden) |
|
305 | self.execute('%%run %s' % path, hidden=hidden) | |
300 |
|
306 | |||
301 | #--------------------------------------------------------------------------- |
|
307 | #--------------------------------------------------------------------------- | |
302 | # 'FrontendWidget' protected interface |
|
308 | # 'FrontendWidget' protected interface | |
303 | #--------------------------------------------------------------------------- |
|
309 | #--------------------------------------------------------------------------- | |
304 |
|
310 | |||
305 | def _complete(self): |
|
311 | def _complete(self): | |
306 | """ Reimplemented to support IPython's improved completion machinery. |
|
312 | """ Reimplemented to support IPython's improved completion machinery. | |
307 | """ |
|
313 | """ | |
308 | # We let the kernel split the input line, so we *always* send an empty |
|
314 | # We let the kernel split the input line, so we *always* send an empty | |
309 | # text field. Readline-based frontends do get a real text field which |
|
315 | # text field. Readline-based frontends do get a real text field which | |
310 | # they can use. |
|
316 | # they can use. | |
311 | text = '' |
|
317 | text = '' | |
312 |
|
318 | |||
313 | # Send the completion request to the kernel |
|
319 | # Send the completion request to the kernel | |
314 | msg_id = self.kernel_manager.shell_channel.complete( |
|
320 | msg_id = self.kernel_manager.shell_channel.complete( | |
315 | text, # text |
|
321 | text, # text | |
316 | self._get_input_buffer_cursor_line(), # line |
|
322 | self._get_input_buffer_cursor_line(), # line | |
317 | self._get_input_buffer_cursor_column(), # cursor_pos |
|
323 | self._get_input_buffer_cursor_column(), # cursor_pos | |
318 | self.input_buffer) # block |
|
324 | self.input_buffer) # block | |
319 | pos = self._get_cursor().position() |
|
325 | pos = self._get_cursor().position() | |
320 | info = self._CompletionRequest(msg_id, pos) |
|
326 | info = self._CompletionRequest(msg_id, pos) | |
321 | self._request_info['complete'] = info |
|
327 | self._request_info['complete'] = info | |
322 |
|
328 | |||
323 | def _process_execute_error(self, msg): |
|
329 | def _process_execute_error(self, msg): | |
324 | """ Reimplemented for IPython-style traceback formatting. |
|
330 | """ Reimplemented for IPython-style traceback formatting. | |
325 | """ |
|
331 | """ | |
326 | content = msg['content'] |
|
332 | content = msg['content'] | |
327 | traceback = '\n'.join(content['traceback']) + '\n' |
|
333 | traceback = '\n'.join(content['traceback']) + '\n' | |
328 | if False: |
|
334 | if False: | |
329 | # FIXME: For now, tracebacks come as plain text, so we can't use |
|
335 | # FIXME: For now, tracebacks come as plain text, so we can't use | |
330 | # the html renderer yet. Once we refactor ultratb to produce |
|
336 | # the html renderer yet. Once we refactor ultratb to produce | |
331 | # properly styled tracebacks, this branch should be the default |
|
337 | # properly styled tracebacks, this branch should be the default | |
332 | traceback = traceback.replace(' ', ' ') |
|
338 | traceback = traceback.replace(' ', ' ') | |
333 | traceback = traceback.replace('\n', '<br/>') |
|
339 | traceback = traceback.replace('\n', '<br/>') | |
334 |
|
340 | |||
335 | ename = content['ename'] |
|
341 | ename = content['ename'] | |
336 | ename_styled = '<span class="error">%s</span>' % ename |
|
342 | ename_styled = '<span class="error">%s</span>' % ename | |
337 | traceback = traceback.replace(ename, ename_styled) |
|
343 | traceback = traceback.replace(ename, ename_styled) | |
338 |
|
344 | |||
339 | self._append_html(traceback) |
|
345 | self._append_html(traceback) | |
340 | else: |
|
346 | else: | |
341 | # This is the fallback for now, using plain text with ansi escapes |
|
347 | # This is the fallback for now, using plain text with ansi escapes | |
342 | self._append_plain_text(traceback) |
|
348 | self._append_plain_text(traceback) | |
343 |
|
349 | |||
344 | def _process_execute_payload(self, item): |
|
350 | def _process_execute_payload(self, item): | |
345 | """ Reimplemented to dispatch payloads to handler methods. |
|
351 | """ Reimplemented to dispatch payloads to handler methods. | |
346 | """ |
|
352 | """ | |
347 | handler = self._payload_handlers.get(item['source']) |
|
353 | handler = self._payload_handlers.get(item['source']) | |
348 | if handler is None: |
|
354 | if handler is None: | |
349 | # We have no handler for this type of payload, simply ignore it |
|
355 | # We have no handler for this type of payload, simply ignore it | |
350 | return False |
|
356 | return False | |
351 | else: |
|
357 | else: | |
352 | handler(item) |
|
358 | handler(item) | |
353 | return True |
|
359 | return True | |
354 |
|
360 | |||
355 | def _show_interpreter_prompt(self, number=None): |
|
361 | def _show_interpreter_prompt(self, number=None): | |
356 | """ Reimplemented for IPython-style prompts. |
|
362 | """ Reimplemented for IPython-style prompts. | |
357 | """ |
|
363 | """ | |
358 | # If a number was not specified, make a prompt number request. |
|
364 | # If a number was not specified, make a prompt number request. | |
359 | if number is None: |
|
365 | if number is None: | |
360 | msg_id = self.kernel_manager.shell_channel.execute('', silent=True) |
|
366 | msg_id = self.kernel_manager.shell_channel.execute('', silent=True) | |
361 | info = self._ExecutionRequest(msg_id, 'prompt') |
|
367 | info = self._ExecutionRequest(msg_id, 'prompt') | |
362 | self._request_info['execute'][msg_id] = info |
|
368 | self._request_info['execute'][msg_id] = info | |
363 | return |
|
369 | return | |
364 |
|
370 | |||
365 | # Show a new prompt and save information about it so that it can be |
|
371 | # Show a new prompt and save information about it so that it can be | |
366 | # updated later if the prompt number turns out to be wrong. |
|
372 | # updated later if the prompt number turns out to be wrong. | |
367 | self._prompt_sep = self.input_sep |
|
373 | self._prompt_sep = self.input_sep | |
368 | self._show_prompt(self._make_in_prompt(number), html=True) |
|
374 | self._show_prompt(self._make_in_prompt(number), html=True) | |
369 | block = self._control.document().lastBlock() |
|
375 | block = self._control.document().lastBlock() | |
370 | length = len(self._prompt) |
|
376 | length = len(self._prompt) | |
371 | self._previous_prompt_obj = self._PromptBlock(block, length, number) |
|
377 | self._previous_prompt_obj = self._PromptBlock(block, length, number) | |
372 |
|
378 | |||
373 | # Update continuation prompt to reflect (possibly) new prompt length. |
|
379 | # Update continuation prompt to reflect (possibly) new prompt length. | |
374 | self._set_continuation_prompt( |
|
380 | self._set_continuation_prompt( | |
375 | self._make_continuation_prompt(self._prompt), html=True) |
|
381 | self._make_continuation_prompt(self._prompt), html=True) | |
376 |
|
382 | |||
377 | def _show_interpreter_prompt_for_reply(self, msg): |
|
383 | def _show_interpreter_prompt_for_reply(self, msg): | |
378 | """ Reimplemented for IPython-style prompts. |
|
384 | """ Reimplemented for IPython-style prompts. | |
379 | """ |
|
385 | """ | |
380 | # Update the old prompt number if necessary. |
|
386 | # Update the old prompt number if necessary. | |
381 | content = msg['content'] |
|
387 | content = msg['content'] | |
382 | # abort replies do not have any keys: |
|
388 | # abort replies do not have any keys: | |
383 | if content['status'] == 'aborted': |
|
389 | if content['status'] == 'aborted': | |
384 | if self._previous_prompt_obj: |
|
390 | if self._previous_prompt_obj: | |
385 | previous_prompt_number = self._previous_prompt_obj.number |
|
391 | previous_prompt_number = self._previous_prompt_obj.number | |
386 | else: |
|
392 | else: | |
387 | previous_prompt_number = 0 |
|
393 | previous_prompt_number = 0 | |
388 | else: |
|
394 | else: | |
389 | previous_prompt_number = content['execution_count'] |
|
395 | previous_prompt_number = content['execution_count'] | |
390 | if self._previous_prompt_obj and \ |
|
396 | if self._previous_prompt_obj and \ | |
391 | self._previous_prompt_obj.number != previous_prompt_number: |
|
397 | self._previous_prompt_obj.number != previous_prompt_number: | |
392 | block = self._previous_prompt_obj.block |
|
398 | block = self._previous_prompt_obj.block | |
393 |
|
399 | |||
394 | # Make sure the prompt block has not been erased. |
|
400 | # Make sure the prompt block has not been erased. | |
395 | if block.isValid() and block.text(): |
|
401 | if block.isValid() and block.text(): | |
396 |
|
402 | |||
397 | # Remove the old prompt and insert a new prompt. |
|
403 | # Remove the old prompt and insert a new prompt. | |
398 | cursor = QtGui.QTextCursor(block) |
|
404 | cursor = QtGui.QTextCursor(block) | |
399 | cursor.movePosition(QtGui.QTextCursor.Right, |
|
405 | cursor.movePosition(QtGui.QTextCursor.Right, | |
400 | QtGui.QTextCursor.KeepAnchor, |
|
406 | QtGui.QTextCursor.KeepAnchor, | |
401 | self._previous_prompt_obj.length) |
|
407 | self._previous_prompt_obj.length) | |
402 | prompt = self._make_in_prompt(previous_prompt_number) |
|
408 | prompt = self._make_in_prompt(previous_prompt_number) | |
403 | self._prompt = self._insert_html_fetching_plain_text( |
|
409 | self._prompt = self._insert_html_fetching_plain_text( | |
404 | cursor, prompt) |
|
410 | cursor, prompt) | |
405 |
|
411 | |||
406 | # When the HTML is inserted, Qt blows away the syntax |
|
412 | # When the HTML is inserted, Qt blows away the syntax | |
407 | # highlighting for the line, so we need to rehighlight it. |
|
413 | # highlighting for the line, so we need to rehighlight it. | |
408 | self._highlighter.rehighlightBlock(cursor.block()) |
|
414 | self._highlighter.rehighlightBlock(cursor.block()) | |
409 |
|
415 | |||
410 | self._previous_prompt_obj = None |
|
416 | self._previous_prompt_obj = None | |
411 |
|
417 | |||
412 | # Show a new prompt with the kernel's estimated prompt number. |
|
418 | # Show a new prompt with the kernel's estimated prompt number. | |
413 | self._show_interpreter_prompt(previous_prompt_number + 1) |
|
419 | self._show_interpreter_prompt(previous_prompt_number + 1) | |
414 |
|
420 | |||
415 | #--------------------------------------------------------------------------- |
|
421 | #--------------------------------------------------------------------------- | |
416 | # 'IPythonWidget' interface |
|
422 | # 'IPythonWidget' interface | |
417 | #--------------------------------------------------------------------------- |
|
423 | #--------------------------------------------------------------------------- | |
418 |
|
424 | |||
419 | def set_default_style(self, colors='lightbg'): |
|
425 | def set_default_style(self, colors='lightbg'): | |
420 | """ Sets the widget style to the class defaults. |
|
426 | """ Sets the widget style to the class defaults. | |
421 |
|
427 | |||
422 | Parameters: |
|
428 | Parameters: | |
423 | ----------- |
|
429 | ----------- | |
424 | colors : str, optional (default lightbg) |
|
430 | colors : str, optional (default lightbg) | |
425 | Whether to use the default IPython light background or dark |
|
431 | Whether to use the default IPython light background or dark | |
426 | background or B&W style. |
|
432 | background or B&W style. | |
427 | """ |
|
433 | """ | |
428 | colors = colors.lower() |
|
434 | colors = colors.lower() | |
429 | if colors=='lightbg': |
|
435 | if colors=='lightbg': | |
430 | self.style_sheet = styles.default_light_style_sheet |
|
436 | self.style_sheet = styles.default_light_style_sheet | |
431 | self.syntax_style = styles.default_light_syntax_style |
|
437 | self.syntax_style = styles.default_light_syntax_style | |
432 | elif colors=='linux': |
|
438 | elif colors=='linux': | |
433 | self.style_sheet = styles.default_dark_style_sheet |
|
439 | self.style_sheet = styles.default_dark_style_sheet | |
434 | self.syntax_style = styles.default_dark_syntax_style |
|
440 | self.syntax_style = styles.default_dark_syntax_style | |
435 | elif colors=='nocolor': |
|
441 | elif colors=='nocolor': | |
436 | self.style_sheet = styles.default_bw_style_sheet |
|
442 | self.style_sheet = styles.default_bw_style_sheet | |
437 | self.syntax_style = styles.default_bw_syntax_style |
|
443 | self.syntax_style = styles.default_bw_syntax_style | |
438 | else: |
|
444 | else: | |
439 | raise KeyError("No such color scheme: %s"%colors) |
|
445 | raise KeyError("No such color scheme: %s"%colors) | |
440 |
|
446 | |||
441 | #--------------------------------------------------------------------------- |
|
447 | #--------------------------------------------------------------------------- | |
442 | # 'IPythonWidget' protected interface |
|
448 | # 'IPythonWidget' protected interface | |
443 | #--------------------------------------------------------------------------- |
|
449 | #--------------------------------------------------------------------------- | |
444 |
|
450 | |||
445 | def _edit(self, filename, line=None): |
|
451 | def _edit(self, filename, line=None): | |
446 | """ Opens a Python script for editing. |
|
452 | """ Opens a Python script for editing. | |
447 |
|
453 | |||
448 | Parameters: |
|
454 | Parameters: | |
449 | ----------- |
|
455 | ----------- | |
450 | filename : str |
|
456 | filename : str | |
451 | A path to a local system file. |
|
457 | A path to a local system file. | |
452 |
|
458 | |||
453 | line : int, optional |
|
459 | line : int, optional | |
454 | A line of interest in the file. |
|
460 | A line of interest in the file. | |
455 | """ |
|
461 | """ | |
456 | if self.custom_edit: |
|
462 | if self.custom_edit: | |
457 | self.custom_edit_requested.emit(filename, line) |
|
463 | self.custom_edit_requested.emit(filename, line) | |
458 | elif not self.editor: |
|
464 | elif not self.editor: | |
459 | self._append_plain_text('No default editor available.\n' |
|
465 | self._append_plain_text('No default editor available.\n' | |
460 | 'Specify a GUI text editor in the `IPythonWidget.editor` ' |
|
466 | 'Specify a GUI text editor in the `IPythonWidget.editor` ' | |
461 | 'configurable to enable the %edit magic') |
|
467 | 'configurable to enable the %edit magic') | |
462 | else: |
|
468 | else: | |
463 | try: |
|
469 | try: | |
464 | filename = '"%s"' % filename |
|
470 | filename = '"%s"' % filename | |
465 | if line and self.editor_line: |
|
471 | if line and self.editor_line: | |
466 | command = self.editor_line.format(filename=filename, |
|
472 | command = self.editor_line.format(filename=filename, | |
467 | line=line) |
|
473 | line=line) | |
468 | else: |
|
474 | else: | |
469 | try: |
|
475 | try: | |
470 | command = self.editor.format() |
|
476 | command = self.editor.format() | |
471 | except KeyError: |
|
477 | except KeyError: | |
472 | command = self.editor.format(filename=filename) |
|
478 | command = self.editor.format(filename=filename) | |
473 | else: |
|
479 | else: | |
474 | command += ' ' + filename |
|
480 | command += ' ' + filename | |
475 | except KeyError: |
|
481 | except KeyError: | |
476 | self._append_plain_text('Invalid editor command.\n') |
|
482 | self._append_plain_text('Invalid editor command.\n') | |
477 | else: |
|
483 | else: | |
478 | try: |
|
484 | try: | |
479 | Popen(command, shell=True) |
|
485 | Popen(command, shell=True) | |
480 | except OSError: |
|
486 | except OSError: | |
481 | msg = 'Opening editor with command "%s" failed.\n' |
|
487 | msg = 'Opening editor with command "%s" failed.\n' | |
482 | self._append_plain_text(msg % command) |
|
488 | self._append_plain_text(msg % command) | |
483 |
|
489 | |||
484 | def _make_in_prompt(self, number): |
|
490 | def _make_in_prompt(self, number): | |
485 | """ Given a prompt number, returns an HTML In prompt. |
|
491 | """ Given a prompt number, returns an HTML In prompt. | |
486 | """ |
|
492 | """ | |
487 | try: |
|
493 | try: | |
488 | body = self.in_prompt % number |
|
494 | body = self.in_prompt % number | |
489 | except TypeError: |
|
495 | except TypeError: | |
490 | # allow in_prompt to leave out number, e.g. '>>> ' |
|
496 | # allow in_prompt to leave out number, e.g. '>>> ' | |
491 | body = self.in_prompt |
|
497 | body = self.in_prompt | |
492 | return '<span class="in-prompt">%s</span>' % body |
|
498 | return '<span class="in-prompt">%s</span>' % body | |
493 |
|
499 | |||
494 | def _make_continuation_prompt(self, prompt): |
|
500 | def _make_continuation_prompt(self, prompt): | |
495 | """ Given a plain text version of an In prompt, returns an HTML |
|
501 | """ Given a plain text version of an In prompt, returns an HTML | |
496 | continuation prompt. |
|
502 | continuation prompt. | |
497 | """ |
|
503 | """ | |
498 | end_chars = '...: ' |
|
504 | end_chars = '...: ' | |
499 | space_count = len(prompt.lstrip('\n')) - len(end_chars) |
|
505 | space_count = len(prompt.lstrip('\n')) - len(end_chars) | |
500 | body = ' ' * space_count + end_chars |
|
506 | body = ' ' * space_count + end_chars | |
501 | return '<span class="in-prompt">%s</span>' % body |
|
507 | return '<span class="in-prompt">%s</span>' % body | |
502 |
|
508 | |||
503 | def _make_out_prompt(self, number): |
|
509 | def _make_out_prompt(self, number): | |
504 | """ Given a prompt number, returns an HTML Out prompt. |
|
510 | """ Given a prompt number, returns an HTML Out prompt. | |
505 | """ |
|
511 | """ | |
506 | body = self.out_prompt % number |
|
512 | body = self.out_prompt % number | |
507 | return '<span class="out-prompt">%s</span>' % body |
|
513 | return '<span class="out-prompt">%s</span>' % body | |
508 |
|
514 | |||
509 | #------ Payload handlers -------------------------------------------------- |
|
515 | #------ Payload handlers -------------------------------------------------- | |
510 |
|
516 | |||
511 | # Payload handlers with a generic interface: each takes the opaque payload |
|
517 | # Payload handlers with a generic interface: each takes the opaque payload | |
512 | # dict, unpacks it and calls the underlying functions with the necessary |
|
518 | # dict, unpacks it and calls the underlying functions with the necessary | |
513 | # arguments. |
|
519 | # arguments. | |
514 |
|
520 | |||
515 | def _handle_payload_edit(self, item): |
|
521 | def _handle_payload_edit(self, item): | |
516 | self._edit(item['filename'], item['line_number']) |
|
522 | self._edit(item['filename'], item['line_number']) | |
517 |
|
523 | |||
518 | def _handle_payload_exit(self, item): |
|
524 | def _handle_payload_exit(self, item): | |
519 | self._keep_kernel_on_exit = item['keepkernel'] |
|
525 | self._keep_kernel_on_exit = item['keepkernel'] | |
520 | self.exit_requested.emit(self) |
|
526 | self.exit_requested.emit(self) | |
521 |
|
527 | |||
522 | def _handle_payload_next_input(self, item): |
|
528 | def _handle_payload_next_input(self, item): | |
523 | self.input_buffer = dedent(item['text'].rstrip()) |
|
529 | self.input_buffer = dedent(item['text'].rstrip()) | |
524 |
|
530 | |||
525 | def _handle_payload_page(self, item): |
|
531 | def _handle_payload_page(self, item): | |
526 | # Since the plain text widget supports only a very small subset of HTML |
|
532 | # Since the plain text widget supports only a very small subset of HTML | |
527 | # and we have no control over the HTML source, we only page HTML |
|
533 | # and we have no control over the HTML source, we only page HTML | |
528 | # payloads in the rich text widget. |
|
534 | # payloads in the rich text widget. | |
529 | if item['html'] and self.kind == 'rich': |
|
535 | if item['html'] and self.kind == 'rich': | |
530 | self._page(item['html'], html=True) |
|
536 | self._page(item['html'], html=True) | |
531 | else: |
|
537 | else: | |
532 | self._page(item['text'], html=False) |
|
538 | self._page(item['text'], html=False) | |
533 |
|
539 | |||
534 | #------ Trait change handlers -------------------------------------------- |
|
540 | #------ Trait change handlers -------------------------------------------- | |
535 |
|
541 | |||
536 | def _style_sheet_changed(self): |
|
542 | def _style_sheet_changed(self): | |
537 | """ Set the style sheets of the underlying widgets. |
|
543 | """ Set the style sheets of the underlying widgets. | |
538 | """ |
|
544 | """ | |
539 | self.setStyleSheet(self.style_sheet) |
|
545 | self.setStyleSheet(self.style_sheet) | |
540 | self._control.document().setDefaultStyleSheet(self.style_sheet) |
|
546 | self._control.document().setDefaultStyleSheet(self.style_sheet) | |
541 | if self._page_control: |
|
547 | if self._page_control: | |
542 | self._page_control.document().setDefaultStyleSheet(self.style_sheet) |
|
548 | self._page_control.document().setDefaultStyleSheet(self.style_sheet) | |
543 |
|
549 | |||
544 | bg_color = self._control.palette().window().color() |
|
550 | bg_color = self._control.palette().window().color() | |
545 | self._ansi_processor.set_background_color(bg_color) |
|
551 | self._ansi_processor.set_background_color(bg_color) | |
546 |
|
552 | |||
547 |
|
553 | |||
548 | def _syntax_style_changed(self): |
|
554 | def _syntax_style_changed(self): | |
549 | """ Set the style for the syntax highlighter. |
|
555 | """ Set the style for the syntax highlighter. | |
550 | """ |
|
556 | """ | |
551 | if self._highlighter is None: |
|
557 | if self._highlighter is None: | |
552 | # ignore premature calls |
|
558 | # ignore premature calls | |
553 | return |
|
559 | return | |
554 | if self.syntax_style: |
|
560 | if self.syntax_style: | |
555 | self._highlighter.set_style(self.syntax_style) |
|
561 | self._highlighter.set_style(self.syntax_style) | |
556 | else: |
|
562 | else: | |
557 | self._highlighter.set_style_sheet(self.style_sheet) |
|
563 | self._highlighter.set_style_sheet(self.style_sheet) | |
558 |
|
564 | |||
559 | #------ Trait default initializers ----------------------------------------- |
|
565 | #------ Trait default initializers ----------------------------------------- | |
560 |
|
566 | |||
561 | def _banner_default(self): |
|
567 | def _banner_default(self): | |
562 | from IPython.core.usage import default_gui_banner |
|
568 | from IPython.core.usage import default_gui_banner | |
563 | return default_gui_banner |
|
569 | return default_gui_banner |
@@ -1,909 +1,908 b'' | |||||
1 | """The Qt MainWindow for the QtConsole |
|
1 | """The Qt MainWindow for the QtConsole | |
2 |
|
2 | |||
3 | This is a tabbed pseudo-terminal of IPython sessions, with a menu bar for |
|
3 | This is a tabbed pseudo-terminal of IPython sessions, with a menu bar for | |
4 | common actions. |
|
4 | common actions. | |
5 |
|
5 | |||
6 | Authors: |
|
6 | Authors: | |
7 |
|
7 | |||
8 | * Evan Patterson |
|
8 | * Evan Patterson | |
9 | * Min RK |
|
9 | * Min RK | |
10 | * Erik Tollerud |
|
10 | * Erik Tollerud | |
11 | * Fernando Perez |
|
11 | * Fernando Perez | |
12 | * Bussonnier Matthias |
|
12 | * Bussonnier Matthias | |
13 | * Thomas Kluyver |
|
13 | * Thomas Kluyver | |
14 |
|
14 | |||
15 | """ |
|
15 | """ | |
16 |
|
16 | |||
17 | #----------------------------------------------------------------------------- |
|
17 | #----------------------------------------------------------------------------- | |
18 | # Imports |
|
18 | # Imports | |
19 | #----------------------------------------------------------------------------- |
|
19 | #----------------------------------------------------------------------------- | |
20 |
|
20 | |||
21 | # stdlib imports |
|
21 | # stdlib imports | |
22 | import sys |
|
22 | import sys | |
23 | import re |
|
23 | import re | |
24 | import webbrowser |
|
24 | import webbrowser | |
25 | from threading import Thread |
|
25 | from threading import Thread | |
26 |
|
26 | |||
27 | # System library imports |
|
27 | # System library imports | |
28 | from IPython.external.qt import QtGui,QtCore |
|
28 | from IPython.external.qt import QtGui,QtCore | |
29 |
|
29 | |||
30 | def background(f): |
|
30 | def background(f): | |
31 | """call a function in a simple thread, to prevent blocking""" |
|
31 | """call a function in a simple thread, to prevent blocking""" | |
32 | t = Thread(target=f) |
|
32 | t = Thread(target=f) | |
33 | t.start() |
|
33 | t.start() | |
34 | return t |
|
34 | return t | |
35 |
|
35 | |||
36 | #----------------------------------------------------------------------------- |
|
36 | #----------------------------------------------------------------------------- | |
37 | # Classes |
|
37 | # Classes | |
38 | #----------------------------------------------------------------------------- |
|
38 | #----------------------------------------------------------------------------- | |
39 |
|
39 | |||
40 | class MainWindow(QtGui.QMainWindow): |
|
40 | class MainWindow(QtGui.QMainWindow): | |
41 |
|
41 | |||
42 | #--------------------------------------------------------------------------- |
|
42 | #--------------------------------------------------------------------------- | |
43 | # 'object' interface |
|
43 | # 'object' interface | |
44 | #--------------------------------------------------------------------------- |
|
44 | #--------------------------------------------------------------------------- | |
45 |
|
45 | |||
46 | def __init__(self, app, |
|
46 | def __init__(self, app, | |
47 | confirm_exit=True, |
|
47 | confirm_exit=True, | |
48 | new_frontend_factory=None, slave_frontend_factory=None, |
|
48 | new_frontend_factory=None, slave_frontend_factory=None, | |
49 | ): |
|
49 | ): | |
50 | """ Create a tabbed MainWindow for managing IPython FrontendWidgets |
|
50 | """ Create a tabbed MainWindow for managing IPython FrontendWidgets | |
51 |
|
51 | |||
52 | Parameters |
|
52 | Parameters | |
53 | ---------- |
|
53 | ---------- | |
54 |
|
54 | |||
55 | app : reference to QApplication parent |
|
55 | app : reference to QApplication parent | |
56 | confirm_exit : bool, optional |
|
56 | confirm_exit : bool, optional | |
57 | Whether we should prompt on close of tabs |
|
57 | Whether we should prompt on close of tabs | |
58 | new_frontend_factory : callable |
|
58 | new_frontend_factory : callable | |
59 | A callable that returns a new IPythonWidget instance, attached to |
|
59 | A callable that returns a new IPythonWidget instance, attached to | |
60 | its own running kernel. |
|
60 | its own running kernel. | |
61 | slave_frontend_factory : callable |
|
61 | slave_frontend_factory : callable | |
62 | A callable that takes an existing IPythonWidget, and returns a new |
|
62 | A callable that takes an existing IPythonWidget, and returns a new | |
63 | IPythonWidget instance, attached to the same kernel. |
|
63 | IPythonWidget instance, attached to the same kernel. | |
64 | """ |
|
64 | """ | |
65 |
|
65 | |||
66 | super(MainWindow, self).__init__() |
|
66 | super(MainWindow, self).__init__() | |
67 | self._kernel_counter = 0 |
|
67 | self._kernel_counter = 0 | |
68 | self._app = app |
|
68 | self._app = app | |
69 | self.confirm_exit = confirm_exit |
|
69 | self.confirm_exit = confirm_exit | |
70 | self.new_frontend_factory = new_frontend_factory |
|
70 | self.new_frontend_factory = new_frontend_factory | |
71 | self.slave_frontend_factory = slave_frontend_factory |
|
71 | self.slave_frontend_factory = slave_frontend_factory | |
72 |
|
72 | |||
73 | self.tab_widget = QtGui.QTabWidget(self) |
|
73 | self.tab_widget = QtGui.QTabWidget(self) | |
74 | self.tab_widget.setDocumentMode(True) |
|
74 | self.tab_widget.setDocumentMode(True) | |
75 | self.tab_widget.setTabsClosable(True) |
|
75 | self.tab_widget.setTabsClosable(True) | |
76 | self.tab_widget.tabCloseRequested[int].connect(self.close_tab) |
|
76 | self.tab_widget.tabCloseRequested[int].connect(self.close_tab) | |
77 |
|
77 | |||
78 | self.setCentralWidget(self.tab_widget) |
|
78 | self.setCentralWidget(self.tab_widget) | |
79 | # hide tab bar at first, since we have no tabs: |
|
79 | # hide tab bar at first, since we have no tabs: | |
80 | self.tab_widget.tabBar().setVisible(False) |
|
80 | self.tab_widget.tabBar().setVisible(False) | |
81 | # prevent focus in tab bar |
|
81 | # prevent focus in tab bar | |
82 | self.tab_widget.setFocusPolicy(QtCore.Qt.NoFocus) |
|
82 | self.tab_widget.setFocusPolicy(QtCore.Qt.NoFocus) | |
83 |
|
83 | |||
84 | def update_tab_bar_visibility(self): |
|
84 | def update_tab_bar_visibility(self): | |
85 | """ update visibility of the tabBar depending of the number of tab |
|
85 | """ update visibility of the tabBar depending of the number of tab | |
86 |
|
86 | |||
87 | 0 or 1 tab, tabBar hidden |
|
87 | 0 or 1 tab, tabBar hidden | |
88 | 2+ tabs, tabBar visible |
|
88 | 2+ tabs, tabBar visible | |
89 |
|
89 | |||
90 | send a self.close if number of tab ==0 |
|
90 | send a self.close if number of tab ==0 | |
91 |
|
91 | |||
92 | need to be called explicitely, or be connected to tabInserted/tabRemoved |
|
92 | need to be called explicitely, or be connected to tabInserted/tabRemoved | |
93 | """ |
|
93 | """ | |
94 | if self.tab_widget.count() <= 1: |
|
94 | if self.tab_widget.count() <= 1: | |
95 | self.tab_widget.tabBar().setVisible(False) |
|
95 | self.tab_widget.tabBar().setVisible(False) | |
96 | else: |
|
96 | else: | |
97 | self.tab_widget.tabBar().setVisible(True) |
|
97 | self.tab_widget.tabBar().setVisible(True) | |
98 | if self.tab_widget.count()==0 : |
|
98 | if self.tab_widget.count()==0 : | |
99 | self.close() |
|
99 | self.close() | |
100 |
|
100 | |||
101 | @property |
|
101 | @property | |
102 | def next_kernel_id(self): |
|
102 | def next_kernel_id(self): | |
103 | """constantly increasing counter for kernel IDs""" |
|
103 | """constantly increasing counter for kernel IDs""" | |
104 | c = self._kernel_counter |
|
104 | c = self._kernel_counter | |
105 | self._kernel_counter += 1 |
|
105 | self._kernel_counter += 1 | |
106 | return c |
|
106 | return c | |
107 |
|
107 | |||
108 | @property |
|
108 | @property | |
109 | def active_frontend(self): |
|
109 | def active_frontend(self): | |
110 | return self.tab_widget.currentWidget() |
|
110 | return self.tab_widget.currentWidget() | |
111 |
|
111 | |||
112 | def create_tab_with_new_frontend(self): |
|
112 | def create_tab_with_new_frontend(self): | |
113 | """create a new frontend and attach it to a new tab""" |
|
113 | """create a new frontend and attach it to a new tab""" | |
114 | widget = self.new_frontend_factory() |
|
114 | widget = self.new_frontend_factory() | |
115 | self.add_tab_with_frontend(widget) |
|
115 | self.add_tab_with_frontend(widget) | |
116 |
|
116 | |||
117 | def create_tab_with_current_kernel(self): |
|
117 | def create_tab_with_current_kernel(self): | |
118 | """create a new frontend attached to the same kernel as the current tab""" |
|
118 | """create a new frontend attached to the same kernel as the current tab""" | |
119 | current_widget = self.tab_widget.currentWidget() |
|
119 | current_widget = self.tab_widget.currentWidget() | |
120 | current_widget_index = self.tab_widget.indexOf(current_widget) |
|
120 | current_widget_index = self.tab_widget.indexOf(current_widget) | |
121 | current_widget_name = self.tab_widget.tabText(current_widget_index) |
|
121 | current_widget_name = self.tab_widget.tabText(current_widget_index) | |
122 | widget = self.slave_frontend_factory(current_widget) |
|
122 | widget = self.slave_frontend_factory(current_widget) | |
123 | if 'slave' in current_widget_name: |
|
123 | if 'slave' in current_widget_name: | |
124 | # don't keep stacking slaves |
|
124 | # don't keep stacking slaves | |
125 | name = current_widget_name |
|
125 | name = current_widget_name | |
126 | else: |
|
126 | else: | |
127 | name = '(%s) slave' % current_widget_name |
|
127 | name = '(%s) slave' % current_widget_name | |
128 | self.add_tab_with_frontend(widget,name=name) |
|
128 | self.add_tab_with_frontend(widget,name=name) | |
129 |
|
129 | |||
130 | def close_tab(self,current_tab): |
|
130 | def close_tab(self,current_tab): | |
131 | """ Called when you need to try to close a tab. |
|
131 | """ Called when you need to try to close a tab. | |
132 |
|
132 | |||
133 | It takes the number of the tab to be closed as argument, or a referece |
|
133 | It takes the number of the tab to be closed as argument, or a referece | |
134 | to the wiget insite this tab |
|
134 | to the wiget insite this tab | |
135 | """ |
|
135 | """ | |
136 |
|
136 | |||
137 | # let's be sure "tab" and "closing widget are respectivey the index of the tab to close |
|
137 | # let's be sure "tab" and "closing widget are respectivey the index of the tab to close | |
138 | # and a reference to the trontend to close |
|
138 | # and a reference to the trontend to close | |
139 | if type(current_tab) is not int : |
|
139 | if type(current_tab) is not int : | |
140 | current_tab = self.tab_widget.indexOf(current_tab) |
|
140 | current_tab = self.tab_widget.indexOf(current_tab) | |
141 | closing_widget=self.tab_widget.widget(current_tab) |
|
141 | closing_widget=self.tab_widget.widget(current_tab) | |
142 |
|
142 | |||
143 |
|
143 | |||
144 | # when trying to be closed, widget might re-send a request to be closed again, but will |
|
144 | # when trying to be closed, widget might re-send a request to be closed again, but will | |
145 | # be deleted when event will be processed. So need to check that widget still exist and |
|
145 | # be deleted when event will be processed. So need to check that widget still exist and | |
146 | # skip if not. One example of this is when 'exit' is send in a slave tab. 'exit' will be |
|
146 | # skip if not. One example of this is when 'exit' is send in a slave tab. 'exit' will be | |
147 | # re-send by this fonction on the master widget, which ask all slaves widget to exit |
|
147 | # re-send by this fonction on the master widget, which ask all slaves widget to exit | |
148 | if closing_widget==None: |
|
148 | if closing_widget==None: | |
149 | return |
|
149 | return | |
150 |
|
150 | |||
151 | #get a list of all slave widgets on the same kernel. |
|
151 | #get a list of all slave widgets on the same kernel. | |
152 | slave_tabs = self.find_slave_widgets(closing_widget) |
|
152 | slave_tabs = self.find_slave_widgets(closing_widget) | |
153 |
|
153 | |||
154 | keepkernel = None #Use the prompt by default |
|
154 | keepkernel = None #Use the prompt by default | |
155 | if hasattr(closing_widget,'_keep_kernel_on_exit'): #set by exit magic |
|
155 | if hasattr(closing_widget,'_keep_kernel_on_exit'): #set by exit magic | |
156 | keepkernel = closing_widget._keep_kernel_on_exit |
|
156 | keepkernel = closing_widget._keep_kernel_on_exit | |
157 | # If signal sent by exit magic (_keep_kernel_on_exit, exist and not None) |
|
157 | # If signal sent by exit magic (_keep_kernel_on_exit, exist and not None) | |
158 | # we set local slave tabs._hidden to True to avoid prompting for kernel |
|
158 | # we set local slave tabs._hidden to True to avoid prompting for kernel | |
159 | # restart when they get the signal. and then "forward" the 'exit' |
|
159 | # restart when they get the signal. and then "forward" the 'exit' | |
160 | # to the main window |
|
160 | # to the main window | |
161 | if keepkernel is not None: |
|
161 | if keepkernel is not None: | |
162 | for tab in slave_tabs: |
|
162 | for tab in slave_tabs: | |
163 | tab._hidden = True |
|
163 | tab._hidden = True | |
164 | if closing_widget in slave_tabs: |
|
164 | if closing_widget in slave_tabs: | |
165 | try : |
|
165 | try : | |
166 | self.find_master_tab(closing_widget).execute('exit') |
|
166 | self.find_master_tab(closing_widget).execute('exit') | |
167 | except AttributeError: |
|
167 | except AttributeError: | |
168 | self.log.info("Master already closed or not local, closing only current tab") |
|
168 | self.log.info("Master already closed or not local, closing only current tab") | |
169 | self.tab_widget.removeTab(current_tab) |
|
169 | self.tab_widget.removeTab(current_tab) | |
170 | self.update_tab_bar_visibility() |
|
170 | self.update_tab_bar_visibility() | |
171 | return |
|
171 | return | |
172 |
|
172 | |||
173 | kernel_manager = closing_widget.kernel_manager |
|
173 | kernel_manager = closing_widget.kernel_manager | |
174 |
|
174 | |||
175 | if keepkernel is None and not closing_widget._confirm_exit: |
|
175 | if keepkernel is None and not closing_widget._confirm_exit: | |
176 | # don't prompt, just terminate the kernel if we own it |
|
176 | # don't prompt, just terminate the kernel if we own it | |
177 | # or leave it alone if we don't |
|
177 | # or leave it alone if we don't | |
178 | keepkernel = closing_widget._existing |
|
178 | keepkernel = closing_widget._existing | |
179 | if keepkernel is None: #show prompt |
|
179 | if keepkernel is None: #show prompt | |
180 | if kernel_manager and kernel_manager.channels_running: |
|
180 | if kernel_manager and kernel_manager.channels_running: | |
181 | title = self.window().windowTitle() |
|
181 | title = self.window().windowTitle() | |
182 | cancel = QtGui.QMessageBox.Cancel |
|
182 | cancel = QtGui.QMessageBox.Cancel | |
183 | okay = QtGui.QMessageBox.Ok |
|
183 | okay = QtGui.QMessageBox.Ok | |
184 | if closing_widget._may_close: |
|
184 | if closing_widget._may_close: | |
185 | msg = "You are closing the tab : "+'"'+self.tab_widget.tabText(current_tab)+'"' |
|
185 | msg = "You are closing the tab : "+'"'+self.tab_widget.tabText(current_tab)+'"' | |
186 | info = "Would you like to quit the Kernel and close all attached Consoles as well?" |
|
186 | info = "Would you like to quit the Kernel and close all attached Consoles as well?" | |
187 | justthis = QtGui.QPushButton("&No, just this Tab", self) |
|
187 | justthis = QtGui.QPushButton("&No, just this Tab", self) | |
188 | justthis.setShortcut('N') |
|
188 | justthis.setShortcut('N') | |
189 | closeall = QtGui.QPushButton("&Yes, close all", self) |
|
189 | closeall = QtGui.QPushButton("&Yes, close all", self) | |
190 | closeall.setShortcut('Y') |
|
190 | closeall.setShortcut('Y') | |
191 | box = QtGui.QMessageBox(QtGui.QMessageBox.Question, |
|
191 | box = QtGui.QMessageBox(QtGui.QMessageBox.Question, | |
192 | title, msg) |
|
192 | title, msg) | |
193 | box.setInformativeText(info) |
|
193 | box.setInformativeText(info) | |
194 | box.addButton(cancel) |
|
194 | box.addButton(cancel) | |
195 | box.addButton(justthis, QtGui.QMessageBox.NoRole) |
|
195 | box.addButton(justthis, QtGui.QMessageBox.NoRole) | |
196 | box.addButton(closeall, QtGui.QMessageBox.YesRole) |
|
196 | box.addButton(closeall, QtGui.QMessageBox.YesRole) | |
197 | box.setDefaultButton(closeall) |
|
197 | box.setDefaultButton(closeall) | |
198 | box.setEscapeButton(cancel) |
|
198 | box.setEscapeButton(cancel) | |
199 | pixmap = QtGui.QPixmap(self._app.icon.pixmap(QtCore.QSize(64,64))) |
|
199 | pixmap = QtGui.QPixmap(self._app.icon.pixmap(QtCore.QSize(64,64))) | |
200 | box.setIconPixmap(pixmap) |
|
200 | box.setIconPixmap(pixmap) | |
201 | reply = box.exec_() |
|
201 | reply = box.exec_() | |
202 | if reply == 1: # close All |
|
202 | if reply == 1: # close All | |
203 | for slave in slave_tabs: |
|
203 | for slave in slave_tabs: | |
204 | background(slave.kernel_manager.stop_channels) |
|
204 | background(slave.kernel_manager.stop_channels) | |
205 | self.tab_widget.removeTab(self.tab_widget.indexOf(slave)) |
|
205 | self.tab_widget.removeTab(self.tab_widget.indexOf(slave)) | |
206 | closing_widget.execute("exit") |
|
206 | closing_widget.execute("exit") | |
207 | self.tab_widget.removeTab(current_tab) |
|
207 | self.tab_widget.removeTab(current_tab) | |
208 | background(kernel_manager.stop_channels) |
|
208 | background(kernel_manager.stop_channels) | |
209 | elif reply == 0: # close Console |
|
209 | elif reply == 0: # close Console | |
210 | if not closing_widget._existing: |
|
210 | if not closing_widget._existing: | |
211 | # Have kernel: don't quit, just close the tab |
|
211 | # Have kernel: don't quit, just close the tab | |
212 | closing_widget.execute("exit True") |
|
212 | closing_widget.execute("exit True") | |
213 | self.tab_widget.removeTab(current_tab) |
|
213 | self.tab_widget.removeTab(current_tab) | |
214 | background(kernel_manager.stop_channels) |
|
214 | background(kernel_manager.stop_channels) | |
215 | else: |
|
215 | else: | |
216 | reply = QtGui.QMessageBox.question(self, title, |
|
216 | reply = QtGui.QMessageBox.question(self, title, | |
217 | "Are you sure you want to close this Console?"+ |
|
217 | "Are you sure you want to close this Console?"+ | |
218 | "\nThe Kernel and other Consoles will remain active.", |
|
218 | "\nThe Kernel and other Consoles will remain active.", | |
219 | okay|cancel, |
|
219 | okay|cancel, | |
220 | defaultButton=okay |
|
220 | defaultButton=okay | |
221 | ) |
|
221 | ) | |
222 | if reply == okay: |
|
222 | if reply == okay: | |
223 | self.tab_widget.removeTab(current_tab) |
|
223 | self.tab_widget.removeTab(current_tab) | |
224 | elif keepkernel: #close console but leave kernel running (no prompt) |
|
224 | elif keepkernel: #close console but leave kernel running (no prompt) | |
225 | self.tab_widget.removeTab(current_tab) |
|
225 | self.tab_widget.removeTab(current_tab) | |
226 | background(kernel_manager.stop_channels) |
|
226 | background(kernel_manager.stop_channels) | |
227 | else: #close console and kernel (no prompt) |
|
227 | else: #close console and kernel (no prompt) | |
228 | self.tab_widget.removeTab(current_tab) |
|
228 | self.tab_widget.removeTab(current_tab) | |
229 | if kernel_manager and kernel_manager.channels_running: |
|
229 | if kernel_manager and kernel_manager.channels_running: | |
230 | for slave in slave_tabs: |
|
230 | for slave in slave_tabs: | |
231 | background(slave.kernel_manager.stop_channels) |
|
231 | background(slave.kernel_manager.stop_channels) | |
232 | self.tab_widget.removeTab(self.tab_widget.indexOf(slave)) |
|
232 | self.tab_widget.removeTab(self.tab_widget.indexOf(slave)) | |
233 | kernel_manager.shutdown_kernel() |
|
233 | kernel_manager.shutdown_kernel() | |
234 | background(kernel_manager.stop_channels) |
|
234 | background(kernel_manager.stop_channels) | |
235 |
|
235 | |||
236 | self.update_tab_bar_visibility() |
|
236 | self.update_tab_bar_visibility() | |
237 |
|
237 | |||
238 | def add_tab_with_frontend(self,frontend,name=None): |
|
238 | def add_tab_with_frontend(self,frontend,name=None): | |
239 | """ insert a tab with a given frontend in the tab bar, and give it a name |
|
239 | """ insert a tab with a given frontend in the tab bar, and give it a name | |
240 |
|
240 | |||
241 | """ |
|
241 | """ | |
242 | if not name: |
|
242 | if not name: | |
243 | name = 'kernel %i' % self.next_kernel_id |
|
243 | name = 'kernel %i' % self.next_kernel_id | |
244 | self.tab_widget.addTab(frontend,name) |
|
244 | self.tab_widget.addTab(frontend,name) | |
245 | self.update_tab_bar_visibility() |
|
245 | self.update_tab_bar_visibility() | |
246 | self.make_frontend_visible(frontend) |
|
246 | self.make_frontend_visible(frontend) | |
247 | frontend.exit_requested.connect(self.close_tab) |
|
247 | frontend.exit_requested.connect(self.close_tab) | |
248 |
|
248 | |||
249 | def next_tab(self): |
|
249 | def next_tab(self): | |
250 | self.tab_widget.setCurrentIndex((self.tab_widget.currentIndex()+1)) |
|
250 | self.tab_widget.setCurrentIndex((self.tab_widget.currentIndex()+1)) | |
251 |
|
251 | |||
252 | def prev_tab(self): |
|
252 | def prev_tab(self): | |
253 | self.tab_widget.setCurrentIndex((self.tab_widget.currentIndex()-1)) |
|
253 | self.tab_widget.setCurrentIndex((self.tab_widget.currentIndex()-1)) | |
254 |
|
254 | |||
255 | def make_frontend_visible(self,frontend): |
|
255 | def make_frontend_visible(self,frontend): | |
256 | widget_index=self.tab_widget.indexOf(frontend) |
|
256 | widget_index=self.tab_widget.indexOf(frontend) | |
257 | if widget_index > 0 : |
|
257 | if widget_index > 0 : | |
258 | self.tab_widget.setCurrentIndex(widget_index) |
|
258 | self.tab_widget.setCurrentIndex(widget_index) | |
259 |
|
259 | |||
260 | def find_master_tab(self,tab,as_list=False): |
|
260 | def find_master_tab(self,tab,as_list=False): | |
261 | """ |
|
261 | """ | |
262 | Try to return the frontend that own the kernel attached to the given widget/tab. |
|
262 | Try to return the frontend that own the kernel attached to the given widget/tab. | |
263 |
|
263 | |||
264 | Only find frontend owed by the current application. Selection |
|
264 | Only find frontend owed by the current application. Selection | |
265 | based on port of the kernel, might be inacurate if several kernel |
|
265 | based on port of the kernel, might be inacurate if several kernel | |
266 | on different ip use same port number. |
|
266 | on different ip use same port number. | |
267 |
|
267 | |||
268 | This fonction does the conversion tabNumber/widget if needed. |
|
268 | This fonction does the conversion tabNumber/widget if needed. | |
269 | Might return None if no master widget (non local kernel) |
|
269 | Might return None if no master widget (non local kernel) | |
270 | Will crash IPython if more than 1 masterWidget |
|
270 | Will crash IPython if more than 1 masterWidget | |
271 |
|
271 | |||
272 | When asList set to True, always return a list of widget(s) owning |
|
272 | When asList set to True, always return a list of widget(s) owning | |
273 | the kernel. The list might be empty or containing several Widget. |
|
273 | the kernel. The list might be empty or containing several Widget. | |
274 | """ |
|
274 | """ | |
275 |
|
275 | |||
276 | #convert from/to int/richIpythonWidget if needed |
|
276 | #convert from/to int/richIpythonWidget if needed | |
277 | if isinstance(tab, int): |
|
277 | if isinstance(tab, int): | |
278 | tab = self.tab_widget.widget(tab) |
|
278 | tab = self.tab_widget.widget(tab) | |
279 | km=tab.kernel_manager |
|
279 | km=tab.kernel_manager | |
280 |
|
280 | |||
281 | #build list of all widgets |
|
281 | #build list of all widgets | |
282 | widget_list = [self.tab_widget.widget(i) for i in range(self.tab_widget.count())] |
|
282 | widget_list = [self.tab_widget.widget(i) for i in range(self.tab_widget.count())] | |
283 |
|
283 | |||
284 | # widget that are candidate to be the owner of the kernel does have all the same port of the curent widget |
|
284 | # widget that are candidate to be the owner of the kernel does have all the same port of the curent widget | |
285 | # And should have a _may_close attribute |
|
285 | # And should have a _may_close attribute | |
286 | filtered_widget_list = [ widget for widget in widget_list if |
|
286 | filtered_widget_list = [ widget for widget in widget_list if | |
287 | widget.kernel_manager.connection_file == km.connection_file and |
|
287 | widget.kernel_manager.connection_file == km.connection_file and | |
288 | hasattr(widget,'_may_close') ] |
|
288 | hasattr(widget,'_may_close') ] | |
289 | # the master widget is the one that may close the kernel |
|
289 | # the master widget is the one that may close the kernel | |
290 | master_widget= [ widget for widget in filtered_widget_list if widget._may_close] |
|
290 | master_widget= [ widget for widget in filtered_widget_list if widget._may_close] | |
291 | if as_list: |
|
291 | if as_list: | |
292 | return master_widget |
|
292 | return master_widget | |
293 | assert(len(master_widget)<=1 ) |
|
293 | assert(len(master_widget)<=1 ) | |
294 | if len(master_widget)==0: |
|
294 | if len(master_widget)==0: | |
295 | return None |
|
295 | return None | |
296 |
|
296 | |||
297 | return master_widget[0] |
|
297 | return master_widget[0] | |
298 |
|
298 | |||
299 | def find_slave_widgets(self,tab): |
|
299 | def find_slave_widgets(self,tab): | |
300 | """return all the frontends that do not own the kernel attached to the given widget/tab. |
|
300 | """return all the frontends that do not own the kernel attached to the given widget/tab. | |
301 |
|
301 | |||
302 | Only find frontends owned by the current application. Selection |
|
302 | Only find frontends owned by the current application. Selection | |
303 | based on connection file of the kernel. |
|
303 | based on connection file of the kernel. | |
304 |
|
304 | |||
305 | This function does the conversion tabNumber/widget if needed. |
|
305 | This function does the conversion tabNumber/widget if needed. | |
306 | """ |
|
306 | """ | |
307 | #convert from/to int/richIpythonWidget if needed |
|
307 | #convert from/to int/richIpythonWidget if needed | |
308 | if isinstance(tab, int): |
|
308 | if isinstance(tab, int): | |
309 | tab = self.tab_widget.widget(tab) |
|
309 | tab = self.tab_widget.widget(tab) | |
310 | km=tab.kernel_manager |
|
310 | km=tab.kernel_manager | |
311 |
|
311 | |||
312 | #build list of all widgets |
|
312 | #build list of all widgets | |
313 | widget_list = [self.tab_widget.widget(i) for i in range(self.tab_widget.count())] |
|
313 | widget_list = [self.tab_widget.widget(i) for i in range(self.tab_widget.count())] | |
314 |
|
314 | |||
315 | # widget that are candidate not to be the owner of the kernel does have all the same port of the curent widget |
|
315 | # widget that are candidate not to be the owner of the kernel does have all the same port of the curent widget | |
316 | filtered_widget_list = ( widget for widget in widget_list if |
|
316 | filtered_widget_list = ( widget for widget in widget_list if | |
317 | widget.kernel_manager.connection_file == km.connection_file) |
|
317 | widget.kernel_manager.connection_file == km.connection_file) | |
318 | # Get a list of all widget owning the same kernel and removed it from |
|
318 | # Get a list of all widget owning the same kernel and removed it from | |
319 | # the previous cadidate. (better using sets ?) |
|
319 | # the previous cadidate. (better using sets ?) | |
320 | master_widget_list = self.find_master_tab(tab, as_list=True) |
|
320 | master_widget_list = self.find_master_tab(tab, as_list=True) | |
321 | slave_list = [widget for widget in filtered_widget_list if widget not in master_widget_list] |
|
321 | slave_list = [widget for widget in filtered_widget_list if widget not in master_widget_list] | |
322 |
|
322 | |||
323 | return slave_list |
|
323 | return slave_list | |
324 |
|
324 | |||
325 | # Populate the menu bar with common actions and shortcuts |
|
325 | # Populate the menu bar with common actions and shortcuts | |
326 | def add_menu_action(self, menu, action, defer_shortcut=False): |
|
326 | def add_menu_action(self, menu, action, defer_shortcut=False): | |
327 | """Add action to menu as well as self |
|
327 | """Add action to menu as well as self | |
328 |
|
328 | |||
329 | So that when the menu bar is invisible, its actions are still available. |
|
329 | So that when the menu bar is invisible, its actions are still available. | |
330 |
|
330 | |||
331 | If defer_shortcut is True, set the shortcut context to widget-only, |
|
331 | If defer_shortcut is True, set the shortcut context to widget-only, | |
332 | where it will avoid conflict with shortcuts already bound to the |
|
332 | where it will avoid conflict with shortcuts already bound to the | |
333 | widgets themselves. |
|
333 | widgets themselves. | |
334 | """ |
|
334 | """ | |
335 | menu.addAction(action) |
|
335 | menu.addAction(action) | |
336 | self.addAction(action) |
|
336 | self.addAction(action) | |
337 |
|
337 | |||
338 | if defer_shortcut: |
|
338 | if defer_shortcut: | |
339 | action.setShortcutContext(QtCore.Qt.WidgetShortcut) |
|
339 | action.setShortcutContext(QtCore.Qt.WidgetShortcut) | |
340 |
|
340 | |||
341 | def init_menu_bar(self): |
|
341 | def init_menu_bar(self): | |
342 | #create menu in the order they should appear in the menu bar |
|
342 | #create menu in the order they should appear in the menu bar | |
343 | self.init_file_menu() |
|
343 | self.init_file_menu() | |
344 | self.init_edit_menu() |
|
344 | self.init_edit_menu() | |
345 | self.init_view_menu() |
|
345 | self.init_view_menu() | |
346 | self.init_kernel_menu() |
|
346 | self.init_kernel_menu() | |
347 | self.init_magic_menu() |
|
347 | self.init_magic_menu() | |
348 | self.init_window_menu() |
|
348 | self.init_window_menu() | |
349 | self.init_help_menu() |
|
349 | self.init_help_menu() | |
350 |
|
350 | |||
351 | def init_file_menu(self): |
|
351 | def init_file_menu(self): | |
352 | self.file_menu = self.menuBar().addMenu("&File") |
|
352 | self.file_menu = self.menuBar().addMenu("&File") | |
353 |
|
353 | |||
354 | self.new_kernel_tab_act = QtGui.QAction("New Tab with &New kernel", |
|
354 | self.new_kernel_tab_act = QtGui.QAction("New Tab with &New kernel", | |
355 | self, |
|
355 | self, | |
356 | shortcut="Ctrl+T", |
|
356 | shortcut="Ctrl+T", | |
357 | triggered=self.create_tab_with_new_frontend) |
|
357 | triggered=self.create_tab_with_new_frontend) | |
358 | self.add_menu_action(self.file_menu, self.new_kernel_tab_act) |
|
358 | self.add_menu_action(self.file_menu, self.new_kernel_tab_act) | |
359 |
|
359 | |||
360 | self.slave_kernel_tab_act = QtGui.QAction("New Tab with Sa&me kernel", |
|
360 | self.slave_kernel_tab_act = QtGui.QAction("New Tab with Sa&me kernel", | |
361 | self, |
|
361 | self, | |
362 | shortcut="Ctrl+Shift+T", |
|
362 | shortcut="Ctrl+Shift+T", | |
363 | triggered=self.create_tab_with_current_kernel) |
|
363 | triggered=self.create_tab_with_current_kernel) | |
364 | self.add_menu_action(self.file_menu, self.slave_kernel_tab_act) |
|
364 | self.add_menu_action(self.file_menu, self.slave_kernel_tab_act) | |
365 |
|
365 | |||
366 | self.file_menu.addSeparator() |
|
366 | self.file_menu.addSeparator() | |
367 |
|
367 | |||
368 | self.close_action=QtGui.QAction("&Close Tab", |
|
368 | self.close_action=QtGui.QAction("&Close Tab", | |
369 | self, |
|
369 | self, | |
370 | shortcut=QtGui.QKeySequence.Close, |
|
370 | shortcut=QtGui.QKeySequence.Close, | |
371 | triggered=self.close_active_frontend |
|
371 | triggered=self.close_active_frontend | |
372 | ) |
|
372 | ) | |
373 | self.add_menu_action(self.file_menu, self.close_action) |
|
373 | self.add_menu_action(self.file_menu, self.close_action) | |
374 |
|
374 | |||
375 | self.export_action=QtGui.QAction("&Save to HTML/XHTML", |
|
375 | self.export_action=QtGui.QAction("&Save to HTML/XHTML", | |
376 | self, |
|
376 | self, | |
377 | shortcut=QtGui.QKeySequence.Save, |
|
377 | shortcut=QtGui.QKeySequence.Save, | |
378 | triggered=self.export_action_active_frontend |
|
378 | triggered=self.export_action_active_frontend | |
379 | ) |
|
379 | ) | |
380 | self.add_menu_action(self.file_menu, self.export_action, True) |
|
380 | self.add_menu_action(self.file_menu, self.export_action, True) | |
381 |
|
381 | |||
382 | self.file_menu.addSeparator() |
|
382 | self.file_menu.addSeparator() | |
383 |
|
383 | |||
384 | printkey = QtGui.QKeySequence(QtGui.QKeySequence.Print) |
|
384 | printkey = QtGui.QKeySequence(QtGui.QKeySequence.Print) | |
385 | if printkey.matches("Ctrl+P") and sys.platform != 'darwin': |
|
385 | if printkey.matches("Ctrl+P") and sys.platform != 'darwin': | |
386 | # Only override the default if there is a collision. |
|
386 | # Only override the default if there is a collision. | |
387 | # Qt ctrl = cmd on OSX, so the match gets a false positive on OSX. |
|
387 | # Qt ctrl = cmd on OSX, so the match gets a false positive on OSX. | |
388 | printkey = "Ctrl+Shift+P" |
|
388 | printkey = "Ctrl+Shift+P" | |
389 | self.print_action = QtGui.QAction("&Print", |
|
389 | self.print_action = QtGui.QAction("&Print", | |
390 | self, |
|
390 | self, | |
391 | shortcut=printkey, |
|
391 | shortcut=printkey, | |
392 | triggered=self.print_action_active_frontend) |
|
392 | triggered=self.print_action_active_frontend) | |
393 | self.add_menu_action(self.file_menu, self.print_action, True) |
|
393 | self.add_menu_action(self.file_menu, self.print_action, True) | |
394 |
|
394 | |||
395 | if sys.platform != 'darwin': |
|
395 | if sys.platform != 'darwin': | |
396 | # OSX always has Quit in the Application menu, only add it |
|
396 | # OSX always has Quit in the Application menu, only add it | |
397 | # to the File menu elsewhere. |
|
397 | # to the File menu elsewhere. | |
398 |
|
398 | |||
399 | self.file_menu.addSeparator() |
|
399 | self.file_menu.addSeparator() | |
400 |
|
400 | |||
401 | self.quit_action = QtGui.QAction("&Quit", |
|
401 | self.quit_action = QtGui.QAction("&Quit", | |
402 | self, |
|
402 | self, | |
403 | shortcut=QtGui.QKeySequence.Quit, |
|
403 | shortcut=QtGui.QKeySequence.Quit, | |
404 | triggered=self.close, |
|
404 | triggered=self.close, | |
405 | ) |
|
405 | ) | |
406 | self.add_menu_action(self.file_menu, self.quit_action) |
|
406 | self.add_menu_action(self.file_menu, self.quit_action) | |
407 |
|
407 | |||
408 |
|
408 | |||
409 | def init_edit_menu(self): |
|
409 | def init_edit_menu(self): | |
410 | self.edit_menu = self.menuBar().addMenu("&Edit") |
|
410 | self.edit_menu = self.menuBar().addMenu("&Edit") | |
411 |
|
411 | |||
412 | self.undo_action = QtGui.QAction("&Undo", |
|
412 | self.undo_action = QtGui.QAction("&Undo", | |
413 | self, |
|
413 | self, | |
414 | shortcut=QtGui.QKeySequence.Undo, |
|
414 | shortcut=QtGui.QKeySequence.Undo, | |
415 | statusTip="Undo last action if possible", |
|
415 | statusTip="Undo last action if possible", | |
416 | triggered=self.undo_active_frontend |
|
416 | triggered=self.undo_active_frontend | |
417 | ) |
|
417 | ) | |
418 | self.add_menu_action(self.edit_menu, self.undo_action) |
|
418 | self.add_menu_action(self.edit_menu, self.undo_action) | |
419 |
|
419 | |||
420 | self.redo_action = QtGui.QAction("&Redo", |
|
420 | self.redo_action = QtGui.QAction("&Redo", | |
421 | self, |
|
421 | self, | |
422 | shortcut=QtGui.QKeySequence.Redo, |
|
422 | shortcut=QtGui.QKeySequence.Redo, | |
423 | statusTip="Redo last action if possible", |
|
423 | statusTip="Redo last action if possible", | |
424 | triggered=self.redo_active_frontend) |
|
424 | triggered=self.redo_active_frontend) | |
425 | self.add_menu_action(self.edit_menu, self.redo_action) |
|
425 | self.add_menu_action(self.edit_menu, self.redo_action) | |
426 |
|
426 | |||
427 | self.edit_menu.addSeparator() |
|
427 | self.edit_menu.addSeparator() | |
428 |
|
428 | |||
429 | self.cut_action = QtGui.QAction("&Cut", |
|
429 | self.cut_action = QtGui.QAction("&Cut", | |
430 | self, |
|
430 | self, | |
431 | shortcut=QtGui.QKeySequence.Cut, |
|
431 | shortcut=QtGui.QKeySequence.Cut, | |
432 | triggered=self.cut_active_frontend |
|
432 | triggered=self.cut_active_frontend | |
433 | ) |
|
433 | ) | |
434 | self.add_menu_action(self.edit_menu, self.cut_action, True) |
|
434 | self.add_menu_action(self.edit_menu, self.cut_action, True) | |
435 |
|
435 | |||
436 | self.copy_action = QtGui.QAction("&Copy", |
|
436 | self.copy_action = QtGui.QAction("&Copy", | |
437 | self, |
|
437 | self, | |
438 | shortcut=QtGui.QKeySequence.Copy, |
|
438 | shortcut=QtGui.QKeySequence.Copy, | |
439 | triggered=self.copy_active_frontend |
|
439 | triggered=self.copy_active_frontend | |
440 | ) |
|
440 | ) | |
441 | self.add_menu_action(self.edit_menu, self.copy_action, True) |
|
441 | self.add_menu_action(self.edit_menu, self.copy_action, True) | |
442 |
|
442 | |||
443 | self.copy_raw_action = QtGui.QAction("Copy (&Raw Text)", |
|
443 | self.copy_raw_action = QtGui.QAction("Copy (&Raw Text)", | |
444 | self, |
|
444 | self, | |
445 | shortcut="Ctrl+Shift+C", |
|
445 | shortcut="Ctrl+Shift+C", | |
446 | triggered=self.copy_raw_active_frontend |
|
446 | triggered=self.copy_raw_active_frontend | |
447 | ) |
|
447 | ) | |
448 | self.add_menu_action(self.edit_menu, self.copy_raw_action, True) |
|
448 | self.add_menu_action(self.edit_menu, self.copy_raw_action, True) | |
449 |
|
449 | |||
450 | self.paste_action = QtGui.QAction("&Paste", |
|
450 | self.paste_action = QtGui.QAction("&Paste", | |
451 | self, |
|
451 | self, | |
452 | shortcut=QtGui.QKeySequence.Paste, |
|
452 | shortcut=QtGui.QKeySequence.Paste, | |
453 | triggered=self.paste_active_frontend |
|
453 | triggered=self.paste_active_frontend | |
454 | ) |
|
454 | ) | |
455 | self.add_menu_action(self.edit_menu, self.paste_action, True) |
|
455 | self.add_menu_action(self.edit_menu, self.paste_action, True) | |
456 |
|
456 | |||
457 | self.edit_menu.addSeparator() |
|
457 | self.edit_menu.addSeparator() | |
458 |
|
458 | |||
459 | selectall = QtGui.QKeySequence(QtGui.QKeySequence.SelectAll) |
|
459 | selectall = QtGui.QKeySequence(QtGui.QKeySequence.SelectAll) | |
460 | if selectall.matches("Ctrl+A") and sys.platform != 'darwin': |
|
460 | if selectall.matches("Ctrl+A") and sys.platform != 'darwin': | |
461 | # Only override the default if there is a collision. |
|
461 | # Only override the default if there is a collision. | |
462 | # Qt ctrl = cmd on OSX, so the match gets a false positive on OSX. |
|
462 | # Qt ctrl = cmd on OSX, so the match gets a false positive on OSX. | |
463 | selectall = "Ctrl+Shift+A" |
|
463 | selectall = "Ctrl+Shift+A" | |
464 | self.select_all_action = QtGui.QAction("Select &All", |
|
464 | self.select_all_action = QtGui.QAction("Select &All", | |
465 | self, |
|
465 | self, | |
466 | shortcut=selectall, |
|
466 | shortcut=selectall, | |
467 | triggered=self.select_all_active_frontend |
|
467 | triggered=self.select_all_active_frontend | |
468 | ) |
|
468 | ) | |
469 | self.add_menu_action(self.edit_menu, self.select_all_action, True) |
|
469 | self.add_menu_action(self.edit_menu, self.select_all_action, True) | |
470 |
|
470 | |||
471 |
|
471 | |||
472 | def init_view_menu(self): |
|
472 | def init_view_menu(self): | |
473 | self.view_menu = self.menuBar().addMenu("&View") |
|
473 | self.view_menu = self.menuBar().addMenu("&View") | |
474 |
|
474 | |||
475 | if sys.platform != 'darwin': |
|
475 | if sys.platform != 'darwin': | |
476 | # disable on OSX, where there is always a menu bar |
|
476 | # disable on OSX, where there is always a menu bar | |
477 | self.toggle_menu_bar_act = QtGui.QAction("Toggle &Menu Bar", |
|
477 | self.toggle_menu_bar_act = QtGui.QAction("Toggle &Menu Bar", | |
478 | self, |
|
478 | self, | |
479 | shortcut="Ctrl+Shift+M", |
|
479 | shortcut="Ctrl+Shift+M", | |
480 | statusTip="Toggle visibility of menubar", |
|
480 | statusTip="Toggle visibility of menubar", | |
481 | triggered=self.toggle_menu_bar) |
|
481 | triggered=self.toggle_menu_bar) | |
482 | self.add_menu_action(self.view_menu, self.toggle_menu_bar_act) |
|
482 | self.add_menu_action(self.view_menu, self.toggle_menu_bar_act) | |
483 |
|
483 | |||
484 | fs_key = "Ctrl+Meta+F" if sys.platform == 'darwin' else "F11" |
|
484 | fs_key = "Ctrl+Meta+F" if sys.platform == 'darwin' else "F11" | |
485 | self.full_screen_act = QtGui.QAction("&Full Screen", |
|
485 | self.full_screen_act = QtGui.QAction("&Full Screen", | |
486 | self, |
|
486 | self, | |
487 | shortcut=fs_key, |
|
487 | shortcut=fs_key, | |
488 | statusTip="Toggle between Fullscreen and Normal Size", |
|
488 | statusTip="Toggle between Fullscreen and Normal Size", | |
489 | triggered=self.toggleFullScreen) |
|
489 | triggered=self.toggleFullScreen) | |
490 | self.add_menu_action(self.view_menu, self.full_screen_act) |
|
490 | self.add_menu_action(self.view_menu, self.full_screen_act) | |
491 |
|
491 | |||
492 | self.view_menu.addSeparator() |
|
492 | self.view_menu.addSeparator() | |
493 |
|
493 | |||
494 | self.increase_font_size = QtGui.QAction("Zoom &In", |
|
494 | self.increase_font_size = QtGui.QAction("Zoom &In", | |
495 | self, |
|
495 | self, | |
496 | shortcut=QtGui.QKeySequence.ZoomIn, |
|
496 | shortcut=QtGui.QKeySequence.ZoomIn, | |
497 | triggered=self.increase_font_size_active_frontend |
|
497 | triggered=self.increase_font_size_active_frontend | |
498 | ) |
|
498 | ) | |
499 | self.add_menu_action(self.view_menu, self.increase_font_size, True) |
|
499 | self.add_menu_action(self.view_menu, self.increase_font_size, True) | |
500 |
|
500 | |||
501 | self.decrease_font_size = QtGui.QAction("Zoom &Out", |
|
501 | self.decrease_font_size = QtGui.QAction("Zoom &Out", | |
502 | self, |
|
502 | self, | |
503 | shortcut=QtGui.QKeySequence.ZoomOut, |
|
503 | shortcut=QtGui.QKeySequence.ZoomOut, | |
504 | triggered=self.decrease_font_size_active_frontend |
|
504 | triggered=self.decrease_font_size_active_frontend | |
505 | ) |
|
505 | ) | |
506 | self.add_menu_action(self.view_menu, self.decrease_font_size, True) |
|
506 | self.add_menu_action(self.view_menu, self.decrease_font_size, True) | |
507 |
|
507 | |||
508 | self.reset_font_size = QtGui.QAction("Zoom &Reset", |
|
508 | self.reset_font_size = QtGui.QAction("Zoom &Reset", | |
509 | self, |
|
509 | self, | |
510 | shortcut="Ctrl+0", |
|
510 | shortcut="Ctrl+0", | |
511 | triggered=self.reset_font_size_active_frontend |
|
511 | triggered=self.reset_font_size_active_frontend | |
512 | ) |
|
512 | ) | |
513 | self.add_menu_action(self.view_menu, self.reset_font_size, True) |
|
513 | self.add_menu_action(self.view_menu, self.reset_font_size, True) | |
514 |
|
514 | |||
515 | self.view_menu.addSeparator() |
|
515 | self.view_menu.addSeparator() | |
516 |
|
516 | |||
517 | self.clear_action = QtGui.QAction("&Clear Screen", |
|
517 | self.clear_action = QtGui.QAction("&Clear Screen", | |
518 | self, |
|
518 | self, | |
519 | shortcut='Ctrl+L', |
|
519 | shortcut='Ctrl+L', | |
520 | statusTip="Clear the console", |
|
520 | statusTip="Clear the console", | |
521 | triggered=self.clear_magic_active_frontend) |
|
521 | triggered=self.clear_magic_active_frontend) | |
522 | self.add_menu_action(self.view_menu, self.clear_action) |
|
522 | self.add_menu_action(self.view_menu, self.clear_action) | |
523 |
|
523 | |||
524 | def init_kernel_menu(self): |
|
524 | def init_kernel_menu(self): | |
525 | self.kernel_menu = self.menuBar().addMenu("&Kernel") |
|
525 | self.kernel_menu = self.menuBar().addMenu("&Kernel") | |
526 | # Qt on OSX maps Ctrl to Cmd, and Meta to Ctrl |
|
526 | # Qt on OSX maps Ctrl to Cmd, and Meta to Ctrl | |
527 | # keep the signal shortcuts to ctrl, rather than |
|
527 | # keep the signal shortcuts to ctrl, rather than | |
528 | # platform-default like we do elsewhere. |
|
528 | # platform-default like we do elsewhere. | |
529 |
|
529 | |||
530 | ctrl = "Meta" if sys.platform == 'darwin' else "Ctrl" |
|
530 | ctrl = "Meta" if sys.platform == 'darwin' else "Ctrl" | |
531 |
|
531 | |||
532 | self.interrupt_kernel_action = QtGui.QAction("Interrupt current Kernel", |
|
532 | self.interrupt_kernel_action = QtGui.QAction("Interrupt current Kernel", | |
533 | self, |
|
533 | self, | |
534 | triggered=self.interrupt_kernel_active_frontend, |
|
534 | triggered=self.interrupt_kernel_active_frontend, | |
535 | shortcut=ctrl+"+C", |
|
535 | shortcut=ctrl+"+C", | |
536 | ) |
|
536 | ) | |
537 | self.add_menu_action(self.kernel_menu, self.interrupt_kernel_action) |
|
537 | self.add_menu_action(self.kernel_menu, self.interrupt_kernel_action) | |
538 |
|
538 | |||
539 | self.restart_kernel_action = QtGui.QAction("Restart current Kernel", |
|
539 | self.restart_kernel_action = QtGui.QAction("Restart current Kernel", | |
540 | self, |
|
540 | self, | |
541 | triggered=self.restart_kernel_active_frontend, |
|
541 | triggered=self.restart_kernel_active_frontend, | |
542 | shortcut=ctrl+"+.", |
|
542 | shortcut=ctrl+"+.", | |
543 | ) |
|
543 | ) | |
544 | self.add_menu_action(self.kernel_menu, self.restart_kernel_action) |
|
544 | self.add_menu_action(self.kernel_menu, self.restart_kernel_action) | |
545 |
|
545 | |||
546 | self.kernel_menu.addSeparator() |
|
546 | self.kernel_menu.addSeparator() | |
547 |
|
547 | |||
548 | def _make_dynamic_magic(self,magic): |
|
548 | def _make_dynamic_magic(self,magic): | |
549 | """Return a function `fun` that will execute `magic` on active frontend. |
|
549 | """Return a function `fun` that will execute `magic` on active frontend. | |
550 |
|
550 | |||
551 | Parameters |
|
551 | Parameters | |
552 | ---------- |
|
552 | ---------- | |
553 | magic : string |
|
553 | magic : string | |
554 | string that will be executed as is when the returned function is called |
|
554 | string that will be executed as is when the returned function is called | |
555 |
|
555 | |||
556 | Returns |
|
556 | Returns | |
557 | ------- |
|
557 | ------- | |
558 | fun : function |
|
558 | fun : function | |
559 | function with no parameters, when called will execute `magic` on the |
|
559 | function with no parameters, when called will execute `magic` on the | |
560 | current active frontend at call time |
|
560 | current active frontend at call time | |
561 |
|
561 | |||
562 | See Also |
|
562 | See Also | |
563 | -------- |
|
563 | -------- | |
564 | populate_all_magic_menu : generate the "All Magics..." menu |
|
564 | populate_all_magic_menu : generate the "All Magics..." menu | |
565 |
|
565 | |||
566 | Notes |
|
566 | Notes | |
567 | ----- |
|
567 | ----- | |
568 | `fun` execute `magic` an active frontend at the moment it is triggerd, |
|
568 | `fun` execute `magic` an active frontend at the moment it is triggerd, | |
569 | not the active frontend at the moment it has been created. |
|
569 | not the active frontend at the moment it has been created. | |
570 |
|
570 | |||
571 | This function is mostly used to create the "All Magics..." Menu at run time. |
|
571 | This function is mostly used to create the "All Magics..." Menu at run time. | |
572 | """ |
|
572 | """ | |
573 | # need to level nested function to be sure to past magic |
|
573 | # need to level nested function to be sure to past magic | |
574 | # on active frontend **at run time**. |
|
574 | # on active frontend **at run time**. | |
575 | def inner_dynamic_magic(): |
|
575 | def inner_dynamic_magic(): | |
576 | self.active_frontend.execute(magic) |
|
576 | self.active_frontend.execute(magic) | |
577 | inner_dynamic_magic.__name__ = "dynamics_magic_s" |
|
577 | inner_dynamic_magic.__name__ = "dynamics_magic_s" | |
578 | return inner_dynamic_magic |
|
578 | return inner_dynamic_magic | |
579 |
|
579 | |||
580 | def populate_all_magic_menu(self, listofmagic=None): |
|
580 | def populate_all_magic_menu(self, listofmagic=None): | |
581 | """Clean "All Magics..." menu and repopulate it with `listofmagic` |
|
581 | """Clean "All Magics..." menu and repopulate it with `listofmagic` | |
582 |
|
582 | |||
583 | Parameters |
|
583 | Parameters | |
584 | ---------- |
|
584 | ---------- | |
585 | listofmagic : string, |
|
585 | listofmagic : string, | |
586 | repr() of a list of strings, send back by the kernel |
|
586 | repr() of a list of strings, send back by the kernel | |
587 |
|
587 | |||
588 | Notes |
|
588 | Notes | |
589 | ----- |
|
589 | ----- | |
590 | `listofmagic`is a repr() of list because it is fed with the result of |
|
590 | `listofmagic`is a repr() of list because it is fed with the result of | |
591 | a 'user_expression' |
|
591 | a 'user_expression' | |
592 | """ |
|
592 | """ | |
593 | alm_magic_menu = self.all_magic_menu |
|
593 | alm_magic_menu = self.all_magic_menu | |
594 | alm_magic_menu.clear() |
|
594 | alm_magic_menu.clear() | |
595 |
|
595 | |||
596 | # list of protected magic that don't like to be called without argument |
|
596 | # list of protected magic that don't like to be called without argument | |
597 | # append '?' to the end to print the docstring when called from the menu |
|
597 | # append '?' to the end to print the docstring when called from the menu | |
598 | protected_magic = set(["more","less","load_ext","pycat","loadpy","save"]) |
|
598 | protected_magic = set(["more","less","load_ext","pycat","loadpy","save"]) | |
599 | magics=re.findall('\w+', listofmagic) |
|
599 | magics=re.findall('\w+', listofmagic) | |
600 | for magic in magics: |
|
600 | for magic in magics: | |
601 | if magic in protected_magic: |
|
601 | if magic in protected_magic: | |
602 | pmagic = '%s%s%s'%('%',magic,'?') |
|
602 | pmagic = '%s%s%s'%('%',magic,'?') | |
603 | else: |
|
603 | else: | |
604 | pmagic = '%s%s'%('%',magic) |
|
604 | pmagic = '%s%s'%('%',magic) | |
605 | xaction = QtGui.QAction(pmagic, |
|
605 | xaction = QtGui.QAction(pmagic, | |
606 | self, |
|
606 | self, | |
607 | triggered=self._make_dynamic_magic(pmagic) |
|
607 | triggered=self._make_dynamic_magic(pmagic) | |
608 | ) |
|
608 | ) | |
609 | alm_magic_menu.addAction(xaction) |
|
609 | alm_magic_menu.addAction(xaction) | |
610 |
|
610 | |||
611 | def update_all_magic_menu(self): |
|
611 | def update_all_magic_menu(self): | |
612 | """ Update the list on magic in the "All Magics..." Menu |
|
612 | """ Update the list on magic in the "All Magics..." Menu | |
613 |
|
613 | |||
614 | Request the kernel with the list of availlable magic and populate the |
|
614 | Request the kernel with the list of availlable magic and populate the | |
615 | menu with the list received back |
|
615 | menu with the list received back | |
616 |
|
616 | |||
617 | """ |
|
617 | """ | |
618 | # first define a callback which will get the list of all magic and put it in the menu. |
|
618 | # first define a callback which will get the list of all magic and put it in the menu. | |
619 | self.active_frontend._silent_exec_callback('get_ipython().lsmagic()', self.populate_all_magic_menu) |
|
619 | self.active_frontend._silent_exec_callback('get_ipython().lsmagic()', self.populate_all_magic_menu) | |
620 |
|
620 | |||
621 | def init_magic_menu(self): |
|
621 | def init_magic_menu(self): | |
622 | self.magic_menu = self.menuBar().addMenu("&Magic") |
|
622 | self.magic_menu = self.menuBar().addMenu("&Magic") | |
623 | self.all_magic_menu = self.magic_menu.addMenu("&All Magics") |
|
623 | self.all_magic_menu = self.magic_menu.addMenu("&All Magics") | |
624 |
|
624 | |||
625 | # This action should usually not appear as it will be cleared when menu |
|
625 | # This action should usually not appear as it will be cleared when menu | |
626 | # is updated at first kernel response. Though, it is necessary when |
|
626 | # is updated at first kernel response. Though, it is necessary when | |
627 | # connecting through X-forwarding, as in this case, the menu is not |
|
627 | # connecting through X-forwarding, as in this case, the menu is not | |
628 | # auto updated, SO DO NOT DELETE. |
|
628 | # auto updated, SO DO NOT DELETE. | |
629 | self.pop = QtGui.QAction("&Update All Magic Menu ", |
|
629 | self.pop = QtGui.QAction("&Update All Magic Menu ", | |
630 | self, triggered=self.update_all_magic_menu) |
|
630 | self, triggered=self.update_all_magic_menu) | |
631 | self.add_menu_action(self.all_magic_menu, self.pop) |
|
631 | self.add_menu_action(self.all_magic_menu, self.pop) | |
632 | # we need to populate the 'Magic Menu' once the kernel has answer at |
|
632 | # we need to populate the 'Magic Menu' once the kernel has answer at | |
633 | # least once let's do it immedialy, but it's assured to works |
|
633 | # least once let's do it immedialy, but it's assured to works | |
634 | self.pop.trigger() |
|
634 | self.pop.trigger() | |
635 |
|
635 | |||
636 | self.reset_action = QtGui.QAction("&Reset", |
|
636 | self.reset_action = QtGui.QAction("&Reset", | |
637 | self, |
|
637 | self, | |
638 | statusTip="Clear all varible from workspace", |
|
638 | statusTip="Clear all varible from workspace", | |
639 | triggered=self.reset_magic_active_frontend) |
|
639 | triggered=self.reset_magic_active_frontend) | |
640 | self.add_menu_action(self.magic_menu, self.reset_action) |
|
640 | self.add_menu_action(self.magic_menu, self.reset_action) | |
641 |
|
641 | |||
642 | self.history_action = QtGui.QAction("&History", |
|
642 | self.history_action = QtGui.QAction("&History", | |
643 | self, |
|
643 | self, | |
644 | statusTip="show command history", |
|
644 | statusTip="show command history", | |
645 | triggered=self.history_magic_active_frontend) |
|
645 | triggered=self.history_magic_active_frontend) | |
646 | self.add_menu_action(self.magic_menu, self.history_action) |
|
646 | self.add_menu_action(self.magic_menu, self.history_action) | |
647 |
|
647 | |||
648 | self.save_action = QtGui.QAction("E&xport History ", |
|
648 | self.save_action = QtGui.QAction("E&xport History ", | |
649 | self, |
|
649 | self, | |
650 | statusTip="Export History as Python File", |
|
650 | statusTip="Export History as Python File", | |
651 | triggered=self.save_magic_active_frontend) |
|
651 | triggered=self.save_magic_active_frontend) | |
652 | self.add_menu_action(self.magic_menu, self.save_action) |
|
652 | self.add_menu_action(self.magic_menu, self.save_action) | |
653 |
|
653 | |||
654 | self.who_action = QtGui.QAction("&Who", |
|
654 | self.who_action = QtGui.QAction("&Who", | |
655 | self, |
|
655 | self, | |
656 | statusTip="List interactive variable", |
|
656 | statusTip="List interactive variable", | |
657 | triggered=self.who_magic_active_frontend) |
|
657 | triggered=self.who_magic_active_frontend) | |
658 | self.add_menu_action(self.magic_menu, self.who_action) |
|
658 | self.add_menu_action(self.magic_menu, self.who_action) | |
659 |
|
659 | |||
660 | self.who_ls_action = QtGui.QAction("Wh&o ls", |
|
660 | self.who_ls_action = QtGui.QAction("Wh&o ls", | |
661 | self, |
|
661 | self, | |
662 | statusTip="Return a list of interactive variable", |
|
662 | statusTip="Return a list of interactive variable", | |
663 | triggered=self.who_ls_magic_active_frontend) |
|
663 | triggered=self.who_ls_magic_active_frontend) | |
664 | self.add_menu_action(self.magic_menu, self.who_ls_action) |
|
664 | self.add_menu_action(self.magic_menu, self.who_ls_action) | |
665 |
|
665 | |||
666 | self.whos_action = QtGui.QAction("Who&s", |
|
666 | self.whos_action = QtGui.QAction("Who&s", | |
667 | self, |
|
667 | self, | |
668 | statusTip="List interactive variable with detail", |
|
668 | statusTip="List interactive variable with detail", | |
669 | triggered=self.whos_magic_active_frontend) |
|
669 | triggered=self.whos_magic_active_frontend) | |
670 | self.add_menu_action(self.magic_menu, self.whos_action) |
|
670 | self.add_menu_action(self.magic_menu, self.whos_action) | |
671 |
|
671 | |||
672 | def init_window_menu(self): |
|
672 | def init_window_menu(self): | |
673 | self.window_menu = self.menuBar().addMenu("&Window") |
|
673 | self.window_menu = self.menuBar().addMenu("&Window") | |
674 | if sys.platform == 'darwin': |
|
674 | if sys.platform == 'darwin': | |
675 | # add min/maximize actions to OSX, which lacks default bindings. |
|
675 | # add min/maximize actions to OSX, which lacks default bindings. | |
676 | self.minimizeAct = QtGui.QAction("Mini&mize", |
|
676 | self.minimizeAct = QtGui.QAction("Mini&mize", | |
677 | self, |
|
677 | self, | |
678 | shortcut="Ctrl+m", |
|
678 | shortcut="Ctrl+m", | |
679 | statusTip="Minimize the window/Restore Normal Size", |
|
679 | statusTip="Minimize the window/Restore Normal Size", | |
680 | triggered=self.toggleMinimized) |
|
680 | triggered=self.toggleMinimized) | |
681 | # maximize is called 'Zoom' on OSX for some reason |
|
681 | # maximize is called 'Zoom' on OSX for some reason | |
682 | self.maximizeAct = QtGui.QAction("&Zoom", |
|
682 | self.maximizeAct = QtGui.QAction("&Zoom", | |
683 | self, |
|
683 | self, | |
684 | shortcut="Ctrl+Shift+M", |
|
684 | shortcut="Ctrl+Shift+M", | |
685 | statusTip="Maximize the window/Restore Normal Size", |
|
685 | statusTip="Maximize the window/Restore Normal Size", | |
686 | triggered=self.toggleMaximized) |
|
686 | triggered=self.toggleMaximized) | |
687 |
|
687 | |||
688 | self.add_menu_action(self.window_menu, self.minimizeAct) |
|
688 | self.add_menu_action(self.window_menu, self.minimizeAct) | |
689 | self.add_menu_action(self.window_menu, self.maximizeAct) |
|
689 | self.add_menu_action(self.window_menu, self.maximizeAct) | |
690 | self.window_menu.addSeparator() |
|
690 | self.window_menu.addSeparator() | |
691 |
|
691 | |||
692 | prev_key = "Ctrl+Shift+Left" if sys.platform == 'darwin' else "Ctrl+PgUp" |
|
692 | prev_key = "Ctrl+Shift+Left" if sys.platform == 'darwin' else "Ctrl+PgUp" | |
693 | self.prev_tab_act = QtGui.QAction("Pre&vious Tab", |
|
693 | self.prev_tab_act = QtGui.QAction("Pre&vious Tab", | |
694 | self, |
|
694 | self, | |
695 | shortcut=prev_key, |
|
695 | shortcut=prev_key, | |
696 | statusTip="Select previous tab", |
|
696 | statusTip="Select previous tab", | |
697 | triggered=self.prev_tab) |
|
697 | triggered=self.prev_tab) | |
698 | self.add_menu_action(self.window_menu, self.prev_tab_act) |
|
698 | self.add_menu_action(self.window_menu, self.prev_tab_act) | |
699 |
|
699 | |||
700 | next_key = "Ctrl+Shift+Right" if sys.platform == 'darwin' else "Ctrl+PgDown" |
|
700 | next_key = "Ctrl+Shift+Right" if sys.platform == 'darwin' else "Ctrl+PgDown" | |
701 | self.next_tab_act = QtGui.QAction("Ne&xt Tab", |
|
701 | self.next_tab_act = QtGui.QAction("Ne&xt Tab", | |
702 | self, |
|
702 | self, | |
703 | shortcut=next_key, |
|
703 | shortcut=next_key, | |
704 | statusTip="Select next tab", |
|
704 | statusTip="Select next tab", | |
705 | triggered=self.next_tab) |
|
705 | triggered=self.next_tab) | |
706 | self.add_menu_action(self.window_menu, self.next_tab_act) |
|
706 | self.add_menu_action(self.window_menu, self.next_tab_act) | |
707 |
|
707 | |||
708 | def init_help_menu(self): |
|
708 | def init_help_menu(self): | |
709 | # please keep the Help menu in Mac Os even if empty. It will |
|
709 | # please keep the Help menu in Mac Os even if empty. It will | |
710 | # automatically contain a search field to search inside menus and |
|
710 | # automatically contain a search field to search inside menus and | |
711 | # please keep it spelled in English, as long as Qt Doesn't support |
|
711 | # please keep it spelled in English, as long as Qt Doesn't support | |
712 | # a QAction.MenuRole like HelpMenuRole otherwise it will loose |
|
712 | # a QAction.MenuRole like HelpMenuRole otherwise it will loose | |
713 | # this search field fonctionality |
|
713 | # this search field fonctionality | |
714 |
|
714 | |||
715 | self.help_menu = self.menuBar().addMenu("&Help") |
|
715 | self.help_menu = self.menuBar().addMenu("&Help") | |
716 |
|
716 | |||
717 |
|
717 | |||
718 | # Help Menu |
|
718 | # Help Menu | |
719 |
|
719 | |||
720 | self.intro_active_frontend_action = QtGui.QAction("&Intro to IPython", |
|
720 | self.intro_active_frontend_action = QtGui.QAction("&Intro to IPython", | |
721 | self, |
|
721 | self, | |
722 | triggered=self.intro_active_frontend |
|
722 | triggered=self.intro_active_frontend | |
723 | ) |
|
723 | ) | |
724 | self.add_menu_action(self.help_menu, self.intro_active_frontend_action) |
|
724 | self.add_menu_action(self.help_menu, self.intro_active_frontend_action) | |
725 |
|
725 | |||
726 | self.quickref_active_frontend_action = QtGui.QAction("IPython &Cheat Sheet", |
|
726 | self.quickref_active_frontend_action = QtGui.QAction("IPython &Cheat Sheet", | |
727 | self, |
|
727 | self, | |
728 | triggered=self.quickref_active_frontend |
|
728 | triggered=self.quickref_active_frontend | |
729 | ) |
|
729 | ) | |
730 | self.add_menu_action(self.help_menu, self.quickref_active_frontend_action) |
|
730 | self.add_menu_action(self.help_menu, self.quickref_active_frontend_action) | |
731 |
|
731 | |||
732 | self.guiref_active_frontend_action = QtGui.QAction("&Qt Console", |
|
732 | self.guiref_active_frontend_action = QtGui.QAction("&Qt Console", | |
733 | self, |
|
733 | self, | |
734 | triggered=self.guiref_active_frontend |
|
734 | triggered=self.guiref_active_frontend | |
735 | ) |
|
735 | ) | |
736 | self.add_menu_action(self.help_menu, self.guiref_active_frontend_action) |
|
736 | self.add_menu_action(self.help_menu, self.guiref_active_frontend_action) | |
737 |
|
737 | |||
738 | self.onlineHelpAct = QtGui.QAction("Open Online &Help", |
|
738 | self.onlineHelpAct = QtGui.QAction("Open Online &Help", | |
739 | self, |
|
739 | self, | |
740 | triggered=self._open_online_help) |
|
740 | triggered=self._open_online_help) | |
741 | self.add_menu_action(self.help_menu, self.onlineHelpAct) |
|
741 | self.add_menu_action(self.help_menu, self.onlineHelpAct) | |
742 |
|
742 | |||
743 | # minimize/maximize/fullscreen actions: |
|
743 | # minimize/maximize/fullscreen actions: | |
744 |
|
744 | |||
745 | def toggle_menu_bar(self): |
|
745 | def toggle_menu_bar(self): | |
746 | menu_bar = self.menuBar() |
|
746 | menu_bar = self.menuBar() | |
747 | if menu_bar.isVisible(): |
|
747 | if menu_bar.isVisible(): | |
748 | menu_bar.setVisible(False) |
|
748 | menu_bar.setVisible(False) | |
749 | else: |
|
749 | else: | |
750 | menu_bar.setVisible(True) |
|
750 | menu_bar.setVisible(True) | |
751 |
|
751 | |||
752 | def toggleMinimized(self): |
|
752 | def toggleMinimized(self): | |
753 | if not self.isMinimized(): |
|
753 | if not self.isMinimized(): | |
754 | self.showMinimized() |
|
754 | self.showMinimized() | |
755 | else: |
|
755 | else: | |
756 | self.showNormal() |
|
756 | self.showNormal() | |
757 |
|
757 | |||
758 | def _open_online_help(self): |
|
758 | def _open_online_help(self): | |
759 | filename="http://ipython.org/ipython-doc/stable/index.html" |
|
759 | filename="http://ipython.org/ipython-doc/stable/index.html" | |
760 | webbrowser.open(filename, new=1, autoraise=True) |
|
760 | webbrowser.open(filename, new=1, autoraise=True) | |
761 |
|
761 | |||
762 | def toggleMaximized(self): |
|
762 | def toggleMaximized(self): | |
763 | if not self.isMaximized(): |
|
763 | if not self.isMaximized(): | |
764 | self.showMaximized() |
|
764 | self.showMaximized() | |
765 | else: |
|
765 | else: | |
766 | self.showNormal() |
|
766 | self.showNormal() | |
767 |
|
767 | |||
768 | # Min/Max imizing while in full screen give a bug |
|
768 | # Min/Max imizing while in full screen give a bug | |
769 | # when going out of full screen, at least on OSX |
|
769 | # when going out of full screen, at least on OSX | |
770 | def toggleFullScreen(self): |
|
770 | def toggleFullScreen(self): | |
771 | if not self.isFullScreen(): |
|
771 | if not self.isFullScreen(): | |
772 | self.showFullScreen() |
|
772 | self.showFullScreen() | |
773 | if sys.platform == 'darwin': |
|
773 | if sys.platform == 'darwin': | |
774 | self.maximizeAct.setEnabled(False) |
|
774 | self.maximizeAct.setEnabled(False) | |
775 | self.minimizeAct.setEnabled(False) |
|
775 | self.minimizeAct.setEnabled(False) | |
776 | else: |
|
776 | else: | |
777 | self.showNormal() |
|
777 | self.showNormal() | |
778 | if sys.platform == 'darwin': |
|
778 | if sys.platform == 'darwin': | |
779 | self.maximizeAct.setEnabled(True) |
|
779 | self.maximizeAct.setEnabled(True) | |
780 | self.minimizeAct.setEnabled(True) |
|
780 | self.minimizeAct.setEnabled(True) | |
781 |
|
781 | |||
782 | def close_active_frontend(self): |
|
782 | def close_active_frontend(self): | |
783 | self.close_tab(self.active_frontend) |
|
783 | self.close_tab(self.active_frontend) | |
784 |
|
784 | |||
785 | def restart_kernel_active_frontend(self): |
|
785 | def restart_kernel_active_frontend(self): | |
786 | self.active_frontend.request_restart_kernel() |
|
786 | self.active_frontend.request_restart_kernel() | |
787 |
|
787 | |||
788 | def interrupt_kernel_active_frontend(self): |
|
788 | def interrupt_kernel_active_frontend(self): | |
789 | self.active_frontend.request_interrupt_kernel() |
|
789 | self.active_frontend.request_interrupt_kernel() | |
790 |
|
790 | |||
791 | def cut_active_frontend(self): |
|
791 | def cut_active_frontend(self): | |
792 | widget = self.active_frontend |
|
792 | widget = self.active_frontend | |
793 | if widget.can_cut(): |
|
793 | if widget.can_cut(): | |
794 | widget.cut() |
|
794 | widget.cut() | |
795 |
|
795 | |||
796 | def copy_active_frontend(self): |
|
796 | def copy_active_frontend(self): | |
797 | widget = self.active_frontend |
|
797 | widget = self.active_frontend | |
798 |
|
|
798 | widget.copy() | |
799 | widget.copy() |
|
|||
800 |
|
799 | |||
801 | def copy_raw_active_frontend(self): |
|
800 | def copy_raw_active_frontend(self): | |
802 | self.active_frontend._copy_raw_action.trigger() |
|
801 | self.active_frontend._copy_raw_action.trigger() | |
803 |
|
802 | |||
804 | def paste_active_frontend(self): |
|
803 | def paste_active_frontend(self): | |
805 | widget = self.active_frontend |
|
804 | widget = self.active_frontend | |
806 | if widget.can_paste(): |
|
805 | if widget.can_paste(): | |
807 | widget.paste() |
|
806 | widget.paste() | |
808 |
|
807 | |||
809 | def undo_active_frontend(self): |
|
808 | def undo_active_frontend(self): | |
810 | self.active_frontend.undo() |
|
809 | self.active_frontend.undo() | |
811 |
|
810 | |||
812 | def redo_active_frontend(self): |
|
811 | def redo_active_frontend(self): | |
813 | self.active_frontend.redo() |
|
812 | self.active_frontend.redo() | |
814 |
|
813 | |||
815 | def reset_magic_active_frontend(self): |
|
814 | def reset_magic_active_frontend(self): | |
816 | self.active_frontend.execute("%reset") |
|
815 | self.active_frontend.execute("%reset") | |
817 |
|
816 | |||
818 | def history_magic_active_frontend(self): |
|
817 | def history_magic_active_frontend(self): | |
819 | self.active_frontend.execute("%history") |
|
818 | self.active_frontend.execute("%history") | |
820 |
|
819 | |||
821 | def save_magic_active_frontend(self): |
|
820 | def save_magic_active_frontend(self): | |
822 | self.active_frontend.save_magic() |
|
821 | self.active_frontend.save_magic() | |
823 |
|
822 | |||
824 | def clear_magic_active_frontend(self): |
|
823 | def clear_magic_active_frontend(self): | |
825 | self.active_frontend.execute("%clear") |
|
824 | self.active_frontend.execute("%clear") | |
826 |
|
825 | |||
827 | def who_magic_active_frontend(self): |
|
826 | def who_magic_active_frontend(self): | |
828 | self.active_frontend.execute("%who") |
|
827 | self.active_frontend.execute("%who") | |
829 |
|
828 | |||
830 | def who_ls_magic_active_frontend(self): |
|
829 | def who_ls_magic_active_frontend(self): | |
831 | self.active_frontend.execute("%who_ls") |
|
830 | self.active_frontend.execute("%who_ls") | |
832 |
|
831 | |||
833 | def whos_magic_active_frontend(self): |
|
832 | def whos_magic_active_frontend(self): | |
834 | self.active_frontend.execute("%whos") |
|
833 | self.active_frontend.execute("%whos") | |
835 |
|
834 | |||
836 | def print_action_active_frontend(self): |
|
835 | def print_action_active_frontend(self): | |
837 | self.active_frontend.print_action.trigger() |
|
836 | self.active_frontend.print_action.trigger() | |
838 |
|
837 | |||
839 | def export_action_active_frontend(self): |
|
838 | def export_action_active_frontend(self): | |
840 | self.active_frontend.export_action.trigger() |
|
839 | self.active_frontend.export_action.trigger() | |
841 |
|
840 | |||
842 | def select_all_active_frontend(self): |
|
841 | def select_all_active_frontend(self): | |
843 | self.active_frontend.select_all_action.trigger() |
|
842 | self.active_frontend.select_all_action.trigger() | |
844 |
|
843 | |||
845 | def increase_font_size_active_frontend(self): |
|
844 | def increase_font_size_active_frontend(self): | |
846 | self.active_frontend.increase_font_size.trigger() |
|
845 | self.active_frontend.increase_font_size.trigger() | |
847 |
|
846 | |||
848 | def decrease_font_size_active_frontend(self): |
|
847 | def decrease_font_size_active_frontend(self): | |
849 | self.active_frontend.decrease_font_size.trigger() |
|
848 | self.active_frontend.decrease_font_size.trigger() | |
850 |
|
849 | |||
851 | def reset_font_size_active_frontend(self): |
|
850 | def reset_font_size_active_frontend(self): | |
852 | self.active_frontend.reset_font_size.trigger() |
|
851 | self.active_frontend.reset_font_size.trigger() | |
853 |
|
852 | |||
854 | def guiref_active_frontend(self): |
|
853 | def guiref_active_frontend(self): | |
855 | self.active_frontend.execute("%guiref") |
|
854 | self.active_frontend.execute("%guiref") | |
856 |
|
855 | |||
857 | def intro_active_frontend(self): |
|
856 | def intro_active_frontend(self): | |
858 | self.active_frontend.execute("?") |
|
857 | self.active_frontend.execute("?") | |
859 |
|
858 | |||
860 | def quickref_active_frontend(self): |
|
859 | def quickref_active_frontend(self): | |
861 | self.active_frontend.execute("%quickref") |
|
860 | self.active_frontend.execute("%quickref") | |
862 | #--------------------------------------------------------------------------- |
|
861 | #--------------------------------------------------------------------------- | |
863 | # QWidget interface |
|
862 | # QWidget interface | |
864 | #--------------------------------------------------------------------------- |
|
863 | #--------------------------------------------------------------------------- | |
865 |
|
864 | |||
866 | def closeEvent(self, event): |
|
865 | def closeEvent(self, event): | |
867 | """ Forward the close event to every tabs contained by the windows |
|
866 | """ Forward the close event to every tabs contained by the windows | |
868 | """ |
|
867 | """ | |
869 | if self.tab_widget.count() == 0: |
|
868 | if self.tab_widget.count() == 0: | |
870 | # no tabs, just close |
|
869 | # no tabs, just close | |
871 | event.accept() |
|
870 | event.accept() | |
872 | return |
|
871 | return | |
873 | # Do Not loop on the widget count as it change while closing |
|
872 | # Do Not loop on the widget count as it change while closing | |
874 | title = self.window().windowTitle() |
|
873 | title = self.window().windowTitle() | |
875 | cancel = QtGui.QMessageBox.Cancel |
|
874 | cancel = QtGui.QMessageBox.Cancel | |
876 | okay = QtGui.QMessageBox.Ok |
|
875 | okay = QtGui.QMessageBox.Ok | |
877 |
|
876 | |||
878 | if self.confirm_exit: |
|
877 | if self.confirm_exit: | |
879 | if self.tab_widget.count() > 1: |
|
878 | if self.tab_widget.count() > 1: | |
880 | msg = "Close all tabs, stop all kernels, and Quit?" |
|
879 | msg = "Close all tabs, stop all kernels, and Quit?" | |
881 | else: |
|
880 | else: | |
882 | msg = "Close console, stop kernel, and Quit?" |
|
881 | msg = "Close console, stop kernel, and Quit?" | |
883 | info = "Kernels not started here (e.g. notebooks) will be left alone." |
|
882 | info = "Kernels not started here (e.g. notebooks) will be left alone." | |
884 | closeall = QtGui.QPushButton("&Yes, quit everything", self) |
|
883 | closeall = QtGui.QPushButton("&Yes, quit everything", self) | |
885 | closeall.setShortcut('Y') |
|
884 | closeall.setShortcut('Y') | |
886 | box = QtGui.QMessageBox(QtGui.QMessageBox.Question, |
|
885 | box = QtGui.QMessageBox(QtGui.QMessageBox.Question, | |
887 | title, msg) |
|
886 | title, msg) | |
888 | box.setInformativeText(info) |
|
887 | box.setInformativeText(info) | |
889 | box.addButton(cancel) |
|
888 | box.addButton(cancel) | |
890 | box.addButton(closeall, QtGui.QMessageBox.YesRole) |
|
889 | box.addButton(closeall, QtGui.QMessageBox.YesRole) | |
891 | box.setDefaultButton(closeall) |
|
890 | box.setDefaultButton(closeall) | |
892 | box.setEscapeButton(cancel) |
|
891 | box.setEscapeButton(cancel) | |
893 | pixmap = QtGui.QPixmap(self._app.icon.pixmap(QtCore.QSize(64,64))) |
|
892 | pixmap = QtGui.QPixmap(self._app.icon.pixmap(QtCore.QSize(64,64))) | |
894 | box.setIconPixmap(pixmap) |
|
893 | box.setIconPixmap(pixmap) | |
895 | reply = box.exec_() |
|
894 | reply = box.exec_() | |
896 | else: |
|
895 | else: | |
897 | reply = okay |
|
896 | reply = okay | |
898 |
|
897 | |||
899 | if reply == cancel: |
|
898 | if reply == cancel: | |
900 | event.ignore() |
|
899 | event.ignore() | |
901 | return |
|
900 | return | |
902 | if reply == okay: |
|
901 | if reply == okay: | |
903 | while self.tab_widget.count() >= 1: |
|
902 | while self.tab_widget.count() >= 1: | |
904 | # prevent further confirmations: |
|
903 | # prevent further confirmations: | |
905 | widget = self.active_frontend |
|
904 | widget = self.active_frontend | |
906 | widget._confirm_exit = False |
|
905 | widget._confirm_exit = False | |
907 | self.close_tab(widget) |
|
906 | self.close_tab(widget) | |
908 | event.accept() |
|
907 | event.accept() | |
909 |
|
908 |
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