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@@ -1,1083 +1,1103 b'' | |||||
1 | # Standard library imports |
|
1 | # Standard library imports | |
2 | import sys |
|
2 | import sys | |
3 | from textwrap import dedent |
|
3 | from textwrap import dedent | |
4 |
|
4 | |||
5 | # System library imports |
|
5 | # System library imports | |
6 | from PyQt4 import QtCore, QtGui |
|
6 | from PyQt4 import QtCore, QtGui | |
7 |
|
7 | |||
8 | # Local imports |
|
8 | # Local imports | |
9 | from ansi_code_processor import QtAnsiCodeProcessor |
|
9 | from ansi_code_processor import QtAnsiCodeProcessor | |
10 | from completion_widget import CompletionWidget |
|
10 | from completion_widget import CompletionWidget | |
11 |
|
11 | |||
12 |
|
12 | |||
13 | class ConsoleWidget(QtGui.QWidget): |
|
13 | class ConsoleWidget(QtGui.QWidget): | |
14 | """ Base class for console-type widgets. This class is mainly concerned with |
|
14 | """ Base class for console-type widgets. This class is mainly concerned with | |
15 | dealing with the prompt, keeping the cursor inside the editing line, and |
|
15 | dealing with the prompt, keeping the cursor inside the editing line, and | |
16 | handling ANSI escape sequences. |
|
16 | handling ANSI escape sequences. | |
17 | """ |
|
17 | """ | |
18 |
|
18 | |||
19 | # Whether to process ANSI escape codes. |
|
19 | # Whether to process ANSI escape codes. | |
20 | ansi_codes = True |
|
20 | ansi_codes = True | |
21 |
|
21 | |||
22 | # The maximum number of lines of text before truncation. |
|
22 | # The maximum number of lines of text before truncation. | |
23 | buffer_size = 500 |
|
23 | buffer_size = 500 | |
24 |
|
24 | |||
25 | # Whether to use a CompletionWidget or plain text output for tab completion. |
|
25 | # Whether to use a CompletionWidget or plain text output for tab completion. | |
26 | gui_completion = True |
|
26 | gui_completion = True | |
27 |
|
27 | |||
28 | # Whether to override ShortcutEvents for the keybindings defined by this |
|
28 | # Whether to override ShortcutEvents for the keybindings defined by this | |
29 | # widget (Ctrl+n, Ctrl+a, etc). Enable this if you want this widget to take |
|
29 | # widget (Ctrl+n, Ctrl+a, etc). Enable this if you want this widget to take | |
30 | # priority (when it has focus) over, e.g., window-level menu shortcuts. |
|
30 | # priority (when it has focus) over, e.g., window-level menu shortcuts. | |
31 | override_shortcuts = False |
|
31 | override_shortcuts = False | |
32 |
|
32 | |||
33 | # Signals that indicate ConsoleWidget state. |
|
33 | # Signals that indicate ConsoleWidget state. | |
34 | copy_available = QtCore.pyqtSignal(bool) |
|
34 | copy_available = QtCore.pyqtSignal(bool) | |
35 | redo_available = QtCore.pyqtSignal(bool) |
|
35 | redo_available = QtCore.pyqtSignal(bool) | |
36 | undo_available = QtCore.pyqtSignal(bool) |
|
36 | undo_available = QtCore.pyqtSignal(bool) | |
37 |
|
37 | |||
38 | # Protected class variables. |
|
38 | # Protected class variables. | |
39 | _ctrl_down_remap = { QtCore.Qt.Key_B : QtCore.Qt.Key_Left, |
|
39 | _ctrl_down_remap = { QtCore.Qt.Key_B : QtCore.Qt.Key_Left, | |
40 | QtCore.Qt.Key_F : QtCore.Qt.Key_Right, |
|
40 | QtCore.Qt.Key_F : QtCore.Qt.Key_Right, | |
41 | QtCore.Qt.Key_A : QtCore.Qt.Key_Home, |
|
41 | QtCore.Qt.Key_A : QtCore.Qt.Key_Home, | |
42 | QtCore.Qt.Key_E : QtCore.Qt.Key_End, |
|
42 | QtCore.Qt.Key_E : QtCore.Qt.Key_End, | |
43 | QtCore.Qt.Key_P : QtCore.Qt.Key_Up, |
|
43 | QtCore.Qt.Key_P : QtCore.Qt.Key_Up, | |
44 | QtCore.Qt.Key_N : QtCore.Qt.Key_Down, |
|
44 | QtCore.Qt.Key_N : QtCore.Qt.Key_Down, | |
45 | QtCore.Qt.Key_D : QtCore.Qt.Key_Delete, } |
|
45 | QtCore.Qt.Key_D : QtCore.Qt.Key_Delete, } | |
46 | _shortcuts = set(_ctrl_down_remap.keys() + |
|
46 | _shortcuts = set(_ctrl_down_remap.keys() + | |
47 | [ QtCore.Qt.Key_C, QtCore.Qt.Key_V ]) |
|
47 | [ QtCore.Qt.Key_C, QtCore.Qt.Key_V ]) | |
48 |
|
48 | |||
49 | #--------------------------------------------------------------------------- |
|
49 | #--------------------------------------------------------------------------- | |
50 | # 'QObject' interface |
|
50 | # 'QObject' interface | |
51 | #--------------------------------------------------------------------------- |
|
51 | #--------------------------------------------------------------------------- | |
52 |
|
52 | |||
53 | def __init__(self, kind='plain', parent=None): |
|
53 | def __init__(self, kind='plain', parent=None): | |
54 | """ Create a ConsoleWidget. |
|
54 | """ Create a ConsoleWidget. | |
55 |
|
55 | |||
56 | Parameters |
|
56 | Parameters | |
57 | ---------- |
|
57 | ---------- | |
58 | kind : str, optional [default 'plain'] |
|
58 | kind : str, optional [default 'plain'] | |
59 | The type of text widget to use. Valid values are 'plain', which |
|
59 | The type of text widget to use. Valid values are 'plain', which | |
60 | specifies a QPlainTextEdit, and 'rich', which specifies a QTextEdit. |
|
60 | specifies a QPlainTextEdit, and 'rich', which specifies a QTextEdit. | |
61 |
|
61 | |||
62 | parent : QWidget, optional [default None] |
|
62 | parent : QWidget, optional [default None] | |
63 | The parent for this widget. |
|
63 | The parent for this widget. | |
64 | """ |
|
64 | """ | |
65 | super(ConsoleWidget, self).__init__(parent) |
|
65 | super(ConsoleWidget, self).__init__(parent) | |
66 |
|
66 | |||
67 | # Create the underlying text widget. |
|
67 | # Create the underlying text widget. | |
68 | self._control = self._create_control(kind) |
|
68 | self._control = self._create_control(kind) | |
69 |
|
69 | |||
70 | # Initialize protected variables. Some variables contain useful state |
|
70 | # Initialize protected variables. Some variables contain useful state | |
71 | # information for subclasses; they should be considered read-only. |
|
71 | # information for subclasses; they should be considered read-only. | |
72 | self._ansi_processor = QtAnsiCodeProcessor() |
|
72 | self._ansi_processor = QtAnsiCodeProcessor() | |
73 | self._completion_widget = CompletionWidget(self._control) |
|
73 | self._completion_widget = CompletionWidget(self._control) | |
74 | self._continuation_prompt = '> ' |
|
74 | self._continuation_prompt = '> ' | |
75 | self._continuation_prompt_html = None |
|
75 | self._continuation_prompt_html = None | |
76 | self._executing = False |
|
76 | self._executing = False | |
77 | self._prompt = '' |
|
77 | self._prompt = '' | |
78 | self._prompt_html = None |
|
78 | self._prompt_html = None | |
79 | self._prompt_pos = 0 |
|
79 | self._prompt_pos = 0 | |
80 | self._reading = False |
|
80 | self._reading = False | |
81 | self._reading_callback = None |
|
81 | self._reading_callback = None | |
82 | self._tab_width = 8 |
|
82 | self._tab_width = 8 | |
83 |
|
83 | |||
84 | # Set a monospaced font. |
|
84 | # Set a monospaced font. | |
85 | self.reset_font() |
|
85 | self.reset_font() | |
86 |
|
86 | |||
87 | def eventFilter(self, obj, event): |
|
87 | def eventFilter(self, obj, event): | |
88 | """ Reimplemented to ensure a console-like behavior in the underlying |
|
88 | """ Reimplemented to ensure a console-like behavior in the underlying | |
89 | text widget. |
|
89 | text widget. | |
90 | """ |
|
90 | """ | |
91 | if obj == self._control: |
|
91 | if obj == self._control: | |
92 | etype = event.type() |
|
92 | etype = event.type() | |
93 |
|
93 | |||
94 | # Disable moving text by drag and drop. |
|
94 | # Disable moving text by drag and drop. | |
95 | if etype == QtCore.QEvent.DragMove: |
|
95 | if etype == QtCore.QEvent.DragMove: | |
96 | return True |
|
96 | return True | |
97 |
|
97 | |||
98 | elif etype == QtCore.QEvent.KeyPress: |
|
98 | elif etype == QtCore.QEvent.KeyPress: | |
99 | return self._event_filter_keypress(event) |
|
99 | return self._event_filter_keypress(event) | |
100 |
|
100 | |||
101 | # On Mac OS, it is always unnecessary to override shortcuts, hence |
|
101 | # On Mac OS, it is always unnecessary to override shortcuts, hence | |
102 | # the check below. Users should just use the Control key instead of |
|
102 | # the check below. Users should just use the Control key instead of | |
103 | # the Command key. |
|
103 | # the Command key. | |
104 | elif etype == QtCore.QEvent.ShortcutOverride: |
|
104 | elif etype == QtCore.QEvent.ShortcutOverride: | |
105 | if sys.platform != 'darwin' and \ |
|
105 | if sys.platform != 'darwin' and \ | |
106 | self._control_key_down(event.modifiers()) and \ |
|
106 | self._control_key_down(event.modifiers()) and \ | |
107 | event.key() in self._shortcuts: |
|
107 | event.key() in self._shortcuts: | |
108 | event.accept() |
|
108 | event.accept() | |
109 | return False |
|
109 | return False | |
110 |
|
110 | |||
111 | return super(ConsoleWidget, self).eventFilter(obj, event) |
|
111 | return super(ConsoleWidget, self).eventFilter(obj, event) | |
112 |
|
112 | |||
113 | #--------------------------------------------------------------------------- |
|
113 | #--------------------------------------------------------------------------- | |
114 | # 'ConsoleWidget' public interface |
|
114 | # 'ConsoleWidget' public interface | |
115 | #--------------------------------------------------------------------------- |
|
115 | #--------------------------------------------------------------------------- | |
116 |
|
116 | |||
117 | def can_paste(self): |
|
117 | def can_paste(self): | |
118 | """ Returns whether text can be pasted from the clipboard. |
|
118 | """ Returns whether text can be pasted from the clipboard. | |
119 | """ |
|
119 | """ | |
120 | # Accept only text that can be ASCII encoded. |
|
120 | # Accept only text that can be ASCII encoded. | |
121 | if self._control.textInteractionFlags() & QtCore.Qt.TextEditable: |
|
121 | if self._control.textInteractionFlags() & QtCore.Qt.TextEditable: | |
122 | text = QtGui.QApplication.clipboard().text() |
|
122 | text = QtGui.QApplication.clipboard().text() | |
123 | if not text.isEmpty(): |
|
123 | if not text.isEmpty(): | |
124 | try: |
|
124 | try: | |
125 | str(text) |
|
125 | str(text) | |
126 | return True |
|
126 | return True | |
127 | except UnicodeEncodeError: |
|
127 | except UnicodeEncodeError: | |
128 | pass |
|
128 | pass | |
129 | return False |
|
129 | return False | |
130 |
|
130 | |||
131 | def clear(self, keep_input=False): |
|
131 | def clear(self, keep_input=False): | |
132 | """ Clear the console, then write a new prompt. If 'keep_input' is set, |
|
132 | """ Clear the console, then write a new prompt. If 'keep_input' is set, | |
133 | restores the old input buffer when the new prompt is written. |
|
133 | restores the old input buffer when the new prompt is written. | |
134 | """ |
|
134 | """ | |
135 | self._control.clear() |
|
135 | self._control.clear() | |
136 | if keep_input: |
|
136 | if keep_input: | |
137 | input_buffer = self.input_buffer |
|
137 | input_buffer = self.input_buffer | |
138 | self._show_prompt() |
|
138 | self._show_prompt() | |
139 | if keep_input: |
|
139 | if keep_input: | |
140 | self.input_buffer = input_buffer |
|
140 | self.input_buffer = input_buffer | |
141 |
|
141 | |||
142 | def copy(self): |
|
142 | def copy(self): | |
143 | """ Copy the current selected text to the clipboard. |
|
143 | """ Copy the current selected text to the clipboard. | |
144 | """ |
|
144 | """ | |
145 | self._control.copy() |
|
145 | self._control.copy() | |
146 |
|
146 | |||
147 | def execute(self, source=None, hidden=False, interactive=False): |
|
147 | def execute(self, source=None, hidden=False, interactive=False): | |
148 | """ Executes source or the input buffer, possibly prompting for more |
|
148 | """ Executes source or the input buffer, possibly prompting for more | |
149 | input. |
|
149 | input. | |
150 |
|
150 | |||
151 | Parameters: |
|
151 | Parameters: | |
152 | ----------- |
|
152 | ----------- | |
153 | source : str, optional |
|
153 | source : str, optional | |
154 |
|
154 | |||
155 | The source to execute. If not specified, the input buffer will be |
|
155 | The source to execute. If not specified, the input buffer will be | |
156 | used. If specified and 'hidden' is False, the input buffer will be |
|
156 | used. If specified and 'hidden' is False, the input buffer will be | |
157 | replaced with the source before execution. |
|
157 | replaced with the source before execution. | |
158 |
|
158 | |||
159 | hidden : bool, optional (default False) |
|
159 | hidden : bool, optional (default False) | |
160 |
|
160 | |||
161 | If set, no output will be shown and the prompt will not be modified. |
|
161 | If set, no output will be shown and the prompt will not be modified. | |
162 | In other words, it will be completely invisible to the user that |
|
162 | In other words, it will be completely invisible to the user that | |
163 | an execution has occurred. |
|
163 | an execution has occurred. | |
164 |
|
164 | |||
165 | interactive : bool, optional (default False) |
|
165 | interactive : bool, optional (default False) | |
166 |
|
166 | |||
167 | Whether the console is to treat the source as having been manually |
|
167 | Whether the console is to treat the source as having been manually | |
168 | entered by the user. The effect of this parameter depends on the |
|
168 | entered by the user. The effect of this parameter depends on the | |
169 | subclass implementation. |
|
169 | subclass implementation. | |
170 |
|
170 | |||
171 | Raises: |
|
171 | Raises: | |
172 | ------- |
|
172 | ------- | |
173 | RuntimeError |
|
173 | RuntimeError | |
174 | If incomplete input is given and 'hidden' is True. In this case, |
|
174 | If incomplete input is given and 'hidden' is True. In this case, | |
175 | it not possible to prompt for more input. |
|
175 | it not possible to prompt for more input. | |
176 |
|
176 | |||
177 | Returns: |
|
177 | Returns: | |
178 | -------- |
|
178 | -------- | |
179 | A boolean indicating whether the source was executed. |
|
179 | A boolean indicating whether the source was executed. | |
180 | """ |
|
180 | """ | |
181 | if not hidden: |
|
181 | if not hidden: | |
182 | if source is not None: |
|
182 | if source is not None: | |
183 | self.input_buffer = source |
|
183 | self.input_buffer = source | |
184 |
|
184 | |||
185 | self._append_plain_text('\n') |
|
185 | self._append_plain_text('\n') | |
186 | self._executing_input_buffer = self.input_buffer |
|
186 | self._executing_input_buffer = self.input_buffer | |
187 | self._executing = True |
|
187 | self._executing = True | |
188 | self._prompt_finished() |
|
188 | self._prompt_finished() | |
189 |
|
189 | |||
190 | real_source = self.input_buffer if source is None else source |
|
190 | real_source = self.input_buffer if source is None else source | |
191 | complete = self._is_complete(real_source, interactive) |
|
191 | complete = self._is_complete(real_source, interactive) | |
192 | if complete: |
|
192 | if complete: | |
193 | if not hidden: |
|
193 | if not hidden: | |
194 | # The maximum block count is only in effect during execution. |
|
194 | # The maximum block count is only in effect during execution. | |
195 | # This ensures that _prompt_pos does not become invalid due to |
|
195 | # This ensures that _prompt_pos does not become invalid due to | |
196 | # text truncation. |
|
196 | # text truncation. | |
197 | self._control.document().setMaximumBlockCount(self.buffer_size) |
|
197 | self._control.document().setMaximumBlockCount(self.buffer_size) | |
198 | self._execute(real_source, hidden) |
|
198 | self._execute(real_source, hidden) | |
199 | elif hidden: |
|
199 | elif hidden: | |
200 | raise RuntimeError('Incomplete noninteractive input: "%s"' % source) |
|
200 | raise RuntimeError('Incomplete noninteractive input: "%s"' % source) | |
201 | else: |
|
201 | else: | |
202 | self._show_continuation_prompt() |
|
202 | self._show_continuation_prompt() | |
203 |
|
203 | |||
204 | return complete |
|
204 | return complete | |
205 |
|
205 | |||
206 | def _get_input_buffer(self): |
|
206 | def _get_input_buffer(self): | |
207 | """ The text that the user has entered entered at the current prompt. |
|
207 | """ The text that the user has entered entered at the current prompt. | |
208 | """ |
|
208 | """ | |
209 | # If we're executing, the input buffer may not even exist anymore due to |
|
209 | # If we're executing, the input buffer may not even exist anymore due to | |
210 | # the limit imposed by 'buffer_size'. Therefore, we store it. |
|
210 | # the limit imposed by 'buffer_size'. Therefore, we store it. | |
211 | if self._executing: |
|
211 | if self._executing: | |
212 | return self._executing_input_buffer |
|
212 | return self._executing_input_buffer | |
213 |
|
213 | |||
214 | cursor = self._get_end_cursor() |
|
214 | cursor = self._get_end_cursor() | |
215 | cursor.setPosition(self._prompt_pos, QtGui.QTextCursor.KeepAnchor) |
|
215 | cursor.setPosition(self._prompt_pos, QtGui.QTextCursor.KeepAnchor) | |
216 | input_buffer = str(cursor.selection().toPlainText()) |
|
216 | input_buffer = str(cursor.selection().toPlainText()) | |
217 |
|
217 | |||
218 | # Strip out continuation prompts. |
|
218 | # Strip out continuation prompts. | |
219 | return input_buffer.replace('\n' + self._continuation_prompt, '\n') |
|
219 | return input_buffer.replace('\n' + self._continuation_prompt, '\n') | |
220 |
|
220 | |||
221 | def _set_input_buffer(self, string): |
|
221 | def _set_input_buffer(self, string): | |
222 | """ Replaces the text in the input buffer with 'string'. |
|
222 | """ Replaces the text in the input buffer with 'string'. | |
223 | """ |
|
223 | """ | |
|
224 | # For now, it is an error to modify the input buffer during execution. | |||
|
225 | if self._executing: | |||
|
226 | raise RuntimeError("Cannot change input buffer during execution.") | |||
|
227 | ||||
224 | # Remove old text. |
|
228 | # Remove old text. | |
225 | cursor = self._get_end_cursor() |
|
229 | cursor = self._get_end_cursor() | |
|
230 | cursor.beginEditBlock() | |||
226 | cursor.setPosition(self._prompt_pos, QtGui.QTextCursor.KeepAnchor) |
|
231 | cursor.setPosition(self._prompt_pos, QtGui.QTextCursor.KeepAnchor) | |
227 | cursor.removeSelectedText() |
|
232 | cursor.removeSelectedText() | |
228 |
|
233 | |||
229 | # Insert new text with continuation prompts. |
|
234 | # Insert new text with continuation prompts. | |
230 | lines = string.splitlines(True) |
|
235 | lines = string.splitlines(True) | |
231 | if lines: |
|
236 | if lines: | |
232 | self._append_plain_text(lines[0]) |
|
237 | self._append_plain_text(lines[0]) | |
233 | for i in xrange(1, len(lines)): |
|
238 | for i in xrange(1, len(lines)): | |
234 | if self._continuation_prompt_html is None: |
|
239 | if self._continuation_prompt_html is None: | |
235 | self._append_plain_text(self._continuation_prompt) |
|
240 | self._append_plain_text(self._continuation_prompt) | |
236 | else: |
|
241 | else: | |
237 | self._append_html(self._continuation_prompt_html) |
|
242 | self._append_html(self._continuation_prompt_html) | |
238 | self._append_plain_text(lines[i]) |
|
243 | self._append_plain_text(lines[i]) | |
|
244 | cursor.endEditBlock() | |||
239 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
245 | self._control.moveCursor(QtGui.QTextCursor.End) | |
240 |
|
246 | |||
241 | input_buffer = property(_get_input_buffer, _set_input_buffer) |
|
247 | input_buffer = property(_get_input_buffer, _set_input_buffer) | |
242 |
|
248 | |||
243 | def _get_font(self): |
|
249 | def _get_font(self): | |
244 | """ The base font being used by the ConsoleWidget. |
|
250 | """ The base font being used by the ConsoleWidget. | |
245 | """ |
|
251 | """ | |
246 | return self._control.document().defaultFont() |
|
252 | return self._control.document().defaultFont() | |
247 |
|
253 | |||
248 | def _set_font(self, font): |
|
254 | def _set_font(self, font): | |
249 | """ Sets the base font for the ConsoleWidget to the specified QFont. |
|
255 | """ Sets the base font for the ConsoleWidget to the specified QFont. | |
250 | """ |
|
256 | """ | |
251 | font_metrics = QtGui.QFontMetrics(font) |
|
257 | font_metrics = QtGui.QFontMetrics(font) | |
252 | self._control.setTabStopWidth(self.tab_width * font_metrics.width(' ')) |
|
258 | self._control.setTabStopWidth(self.tab_width * font_metrics.width(' ')) | |
253 |
|
259 | |||
254 | self._completion_widget.setFont(font) |
|
260 | self._completion_widget.setFont(font) | |
255 | self._control.document().setDefaultFont(font) |
|
261 | self._control.document().setDefaultFont(font) | |
256 |
|
262 | |||
257 | font = property(_get_font, _set_font) |
|
263 | font = property(_get_font, _set_font) | |
258 |
|
264 | |||
259 | def paste(self): |
|
265 | def paste(self): | |
260 | """ Paste the contents of the clipboard into the input region. |
|
266 | """ Paste the contents of the clipboard into the input region. | |
261 | """ |
|
267 | """ | |
262 | if self._control.textInteractionFlags() & QtCore.Qt.TextEditable: |
|
268 | if self._control.textInteractionFlags() & QtCore.Qt.TextEditable: | |
263 | try: |
|
269 | try: | |
264 | text = str(QtGui.QApplication.clipboard().text()) |
|
270 | text = str(QtGui.QApplication.clipboard().text()) | |
265 | except UnicodeEncodeError: |
|
271 | except UnicodeEncodeError: | |
266 | pass |
|
272 | pass | |
267 | else: |
|
273 | else: | |
268 | self._insert_into_buffer(dedent(text)) |
|
274 | self._insert_into_buffer(dedent(text)) | |
269 |
|
275 | |||
270 | def print_(self, printer): |
|
276 | def print_(self, printer): | |
271 | """ Print the contents of the ConsoleWidget to the specified QPrinter. |
|
277 | """ Print the contents of the ConsoleWidget to the specified QPrinter. | |
272 | """ |
|
278 | """ | |
273 | self._control.print_(printer) |
|
279 | self._control.print_(printer) | |
274 |
|
280 | |||
275 | def redo(self): |
|
281 | def redo(self): | |
276 | """ Redo the last operation. If there is no operation to redo, nothing |
|
282 | """ Redo the last operation. If there is no operation to redo, nothing | |
277 | happens. |
|
283 | happens. | |
278 | """ |
|
284 | """ | |
279 | self._control.redo() |
|
285 | self._control.redo() | |
280 |
|
286 | |||
281 | def reset_font(self): |
|
287 | def reset_font(self): | |
282 | """ Sets the font to the default fixed-width font for this platform. |
|
288 | """ Sets the font to the default fixed-width font for this platform. | |
283 | """ |
|
289 | """ | |
284 | if sys.platform == 'win32': |
|
290 | if sys.platform == 'win32': | |
285 | name = 'Courier' |
|
291 | name = 'Courier' | |
286 | elif sys.platform == 'darwin': |
|
292 | elif sys.platform == 'darwin': | |
287 | name = 'Monaco' |
|
293 | name = 'Monaco' | |
288 | else: |
|
294 | else: | |
289 | name = 'Monospace' |
|
295 | name = 'Monospace' | |
290 | font = QtGui.QFont(name, QtGui.qApp.font().pointSize()) |
|
296 | font = QtGui.QFont(name, QtGui.qApp.font().pointSize()) | |
291 | font.setStyleHint(QtGui.QFont.TypeWriter) |
|
297 | font.setStyleHint(QtGui.QFont.TypeWriter) | |
292 | self._set_font(font) |
|
298 | self._set_font(font) | |
293 |
|
299 | |||
294 | def select_all(self): |
|
300 | def select_all(self): | |
295 | """ Selects all the text in the buffer. |
|
301 | """ Selects all the text in the buffer. | |
296 | """ |
|
302 | """ | |
297 | self._control.selectAll() |
|
303 | self._control.selectAll() | |
298 |
|
304 | |||
299 | def _get_tab_width(self): |
|
305 | def _get_tab_width(self): | |
300 | """ The width (in terms of space characters) for tab characters. |
|
306 | """ The width (in terms of space characters) for tab characters. | |
301 | """ |
|
307 | """ | |
302 | return self._tab_width |
|
308 | return self._tab_width | |
303 |
|
309 | |||
304 | def _set_tab_width(self, tab_width): |
|
310 | def _set_tab_width(self, tab_width): | |
305 | """ Sets the width (in terms of space characters) for tab characters. |
|
311 | """ Sets the width (in terms of space characters) for tab characters. | |
306 | """ |
|
312 | """ | |
307 | font_metrics = QtGui.QFontMetrics(self.font) |
|
313 | font_metrics = QtGui.QFontMetrics(self.font) | |
308 | self._control.setTabStopWidth(tab_width * font_metrics.width(' ')) |
|
314 | self._control.setTabStopWidth(tab_width * font_metrics.width(' ')) | |
309 |
|
315 | |||
310 | self._tab_width = tab_width |
|
316 | self._tab_width = tab_width | |
311 |
|
317 | |||
312 | tab_width = property(_get_tab_width, _set_tab_width) |
|
318 | tab_width = property(_get_tab_width, _set_tab_width) | |
313 |
|
319 | |||
314 | def undo(self): |
|
320 | def undo(self): | |
315 | """ Undo the last operation. If there is no operation to undo, nothing |
|
321 | """ Undo the last operation. If there is no operation to undo, nothing | |
316 | happens. |
|
322 | happens. | |
317 | """ |
|
323 | """ | |
318 | self._control.undo() |
|
324 | self._control.undo() | |
319 |
|
325 | |||
320 | #--------------------------------------------------------------------------- |
|
326 | #--------------------------------------------------------------------------- | |
321 | # 'ConsoleWidget' abstract interface |
|
327 | # 'ConsoleWidget' abstract interface | |
322 | #--------------------------------------------------------------------------- |
|
328 | #--------------------------------------------------------------------------- | |
323 |
|
329 | |||
324 | def _is_complete(self, source, interactive): |
|
330 | def _is_complete(self, source, interactive): | |
325 | """ Returns whether 'source' can be executed. When triggered by an |
|
331 | """ Returns whether 'source' can be executed. When triggered by an | |
326 | Enter/Return key press, 'interactive' is True; otherwise, it is |
|
332 | Enter/Return key press, 'interactive' is True; otherwise, it is | |
327 | False. |
|
333 | False. | |
328 | """ |
|
334 | """ | |
329 | raise NotImplementedError |
|
335 | raise NotImplementedError | |
330 |
|
336 | |||
331 | def _execute(self, source, hidden): |
|
337 | def _execute(self, source, hidden): | |
332 | """ Execute 'source'. If 'hidden', do not show any output. |
|
338 | """ Execute 'source'. If 'hidden', do not show any output. | |
333 | """ |
|
339 | """ | |
334 | raise NotImplementedError |
|
340 | raise NotImplementedError | |
335 |
|
341 | |||
336 | def _execute_interrupt(self): |
|
342 | def _execute_interrupt(self): | |
337 | """ Attempts to stop execution. Returns whether this method has an |
|
343 | """ Attempts to stop execution. Returns whether this method has an | |
338 | implementation. |
|
344 | implementation. | |
339 | """ |
|
345 | """ | |
340 | return False |
|
346 | return False | |
341 |
|
347 | |||
342 | def _prompt_started_hook(self): |
|
348 | def _prompt_started_hook(self): | |
343 | """ Called immediately after a new prompt is displayed. |
|
349 | """ Called immediately after a new prompt is displayed. | |
344 | """ |
|
350 | """ | |
345 | pass |
|
351 | pass | |
346 |
|
352 | |||
347 | def _prompt_finished_hook(self): |
|
353 | def _prompt_finished_hook(self): | |
348 | """ Called immediately after a prompt is finished, i.e. when some input |
|
354 | """ Called immediately after a prompt is finished, i.e. when some input | |
349 | will be processed and a new prompt displayed. |
|
355 | will be processed and a new prompt displayed. | |
350 | """ |
|
356 | """ | |
351 | pass |
|
357 | pass | |
352 |
|
358 | |||
353 | def _up_pressed(self): |
|
359 | def _up_pressed(self): | |
354 | """ Called when the up key is pressed. Returns whether to continue |
|
360 | """ Called when the up key is pressed. Returns whether to continue | |
355 | processing the event. |
|
361 | processing the event. | |
356 | """ |
|
362 | """ | |
357 | return True |
|
363 | return True | |
358 |
|
364 | |||
359 | def _down_pressed(self): |
|
365 | def _down_pressed(self): | |
360 | """ Called when the down key is pressed. Returns whether to continue |
|
366 | """ Called when the down key is pressed. Returns whether to continue | |
361 | processing the event. |
|
367 | processing the event. | |
362 | """ |
|
368 | """ | |
363 | return True |
|
369 | return True | |
364 |
|
370 | |||
365 | def _tab_pressed(self): |
|
371 | def _tab_pressed(self): | |
366 | """ Called when the tab key is pressed. Returns whether to continue |
|
372 | """ Called when the tab key is pressed. Returns whether to continue | |
367 | processing the event. |
|
373 | processing the event. | |
368 | """ |
|
374 | """ | |
369 | return False |
|
375 | return False | |
370 |
|
376 | |||
371 | #-------------------------------------------------------------------------- |
|
377 | #-------------------------------------------------------------------------- | |
372 | # 'ConsoleWidget' protected interface |
|
378 | # 'ConsoleWidget' protected interface | |
373 | #-------------------------------------------------------------------------- |
|
379 | #-------------------------------------------------------------------------- | |
374 |
|
380 | |||
375 | def _append_html(self, html): |
|
381 | def _append_html(self, html): | |
376 | """ Appends html at the end of the console buffer. |
|
382 | """ Appends html at the end of the console buffer. | |
377 | """ |
|
383 | """ | |
378 | cursor = self._get_end_cursor() |
|
384 | cursor = self._get_end_cursor() | |
379 | self._insert_html(cursor, html) |
|
385 | self._insert_html(cursor, html) | |
380 |
|
386 | |||
381 | def _append_html_fetching_plain_text(self, html): |
|
387 | def _append_html_fetching_plain_text(self, html): | |
382 | """ Appends 'html', then returns the plain text version of it. |
|
388 | """ Appends 'html', then returns the plain text version of it. | |
383 | """ |
|
389 | """ | |
384 | anchor = self._get_end_cursor().position() |
|
390 | anchor = self._get_end_cursor().position() | |
385 | self._append_html(html) |
|
391 | self._append_html(html) | |
386 | cursor = self._get_end_cursor() |
|
392 | cursor = self._get_end_cursor() | |
387 | cursor.setPosition(anchor, QtGui.QTextCursor.KeepAnchor) |
|
393 | cursor.setPosition(anchor, QtGui.QTextCursor.KeepAnchor) | |
388 | return str(cursor.selection().toPlainText()) |
|
394 | return str(cursor.selection().toPlainText()) | |
389 |
|
395 | |||
390 | def _append_plain_text(self, text): |
|
396 | def _append_plain_text(self, text): | |
391 | """ Appends plain text at the end of the console buffer, processing |
|
397 | """ Appends plain text at the end of the console buffer, processing | |
392 | ANSI codes if enabled. |
|
398 | ANSI codes if enabled. | |
393 | """ |
|
399 | """ | |
394 | cursor = self._get_end_cursor() |
|
400 | cursor = self._get_end_cursor() | |
|
401 | cursor.beginEditBlock() | |||
395 | if self.ansi_codes: |
|
402 | if self.ansi_codes: | |
396 | for substring in self._ansi_processor.split_string(text): |
|
403 | for substring in self._ansi_processor.split_string(text): | |
397 | format = self._ansi_processor.get_format() |
|
404 | format = self._ansi_processor.get_format() | |
398 | cursor.insertText(substring, format) |
|
405 | cursor.insertText(substring, format) | |
399 | else: |
|
406 | else: | |
400 | cursor.insertText(text) |
|
407 | cursor.insertText(text) | |
|
408 | cursor.endEditBlock() | |||
401 |
|
409 | |||
402 | def _append_plain_text_keeping_prompt(self, text): |
|
410 | def _append_plain_text_keeping_prompt(self, text): | |
403 | """ Writes 'text' after the current prompt, then restores the old prompt |
|
411 | """ Writes 'text' after the current prompt, then restores the old prompt | |
404 | with its old input buffer. |
|
412 | with its old input buffer. | |
405 | """ |
|
413 | """ | |
406 | input_buffer = self.input_buffer |
|
414 | input_buffer = self.input_buffer | |
407 | self._append_plain_text('\n') |
|
415 | self._append_plain_text('\n') | |
408 | self._prompt_finished() |
|
416 | self._prompt_finished() | |
409 |
|
417 | |||
410 | self._append_plain_text(text) |
|
418 | self._append_plain_text(text) | |
411 | self._show_prompt() |
|
419 | self._show_prompt() | |
412 | self.input_buffer = input_buffer |
|
420 | self.input_buffer = input_buffer | |
413 |
|
421 | |||
414 | def _complete_with_items(self, cursor, items): |
|
422 | def _complete_with_items(self, cursor, items): | |
415 | """ Performs completion with 'items' at the specified cursor location. |
|
423 | """ Performs completion with 'items' at the specified cursor location. | |
416 | """ |
|
424 | """ | |
417 | if len(items) == 1: |
|
425 | if len(items) == 1: | |
418 | cursor.setPosition(self._control.textCursor().position(), |
|
426 | cursor.setPosition(self._control.textCursor().position(), | |
419 | QtGui.QTextCursor.KeepAnchor) |
|
427 | QtGui.QTextCursor.KeepAnchor) | |
420 | cursor.insertText(items[0]) |
|
428 | cursor.insertText(items[0]) | |
421 | elif len(items) > 1: |
|
429 | elif len(items) > 1: | |
422 | if self.gui_completion: |
|
430 | if self.gui_completion: | |
423 | self._completion_widget.show_items(cursor, items) |
|
431 | self._completion_widget.show_items(cursor, items) | |
424 | else: |
|
432 | else: | |
425 | text = self._format_as_columns(items) |
|
433 | text = self._format_as_columns(items) | |
426 | self._append_plain_text_keeping_prompt(text) |
|
434 | self._append_plain_text_keeping_prompt(text) | |
427 |
|
435 | |||
428 | def _control_key_down(self, modifiers): |
|
436 | def _control_key_down(self, modifiers): | |
429 | """ Given a KeyboardModifiers flags object, return whether the Control |
|
437 | """ Given a KeyboardModifiers flags object, return whether the Control | |
430 | key is down (on Mac OS, treat the Command key as a synonym for |
|
438 | key is down (on Mac OS, treat the Command key as a synonym for | |
431 | Control). |
|
439 | Control). | |
432 | """ |
|
440 | """ | |
433 | down = bool(modifiers & QtCore.Qt.ControlModifier) |
|
441 | down = bool(modifiers & QtCore.Qt.ControlModifier) | |
434 |
|
442 | |||
435 | # Note: on Mac OS, ControlModifier corresponds to the Command key while |
|
443 | # Note: on Mac OS, ControlModifier corresponds to the Command key while | |
436 | # MetaModifier corresponds to the Control key. |
|
444 | # MetaModifier corresponds to the Control key. | |
437 | if sys.platform == 'darwin': |
|
445 | if sys.platform == 'darwin': | |
438 | down = down ^ bool(modifiers & QtCore.Qt.MetaModifier) |
|
446 | down = down ^ bool(modifiers & QtCore.Qt.MetaModifier) | |
439 |
|
447 | |||
440 | return down |
|
448 | return down | |
441 |
|
449 | |||
442 | def _create_control(self, kind): |
|
450 | def _create_control(self, kind): | |
443 | """ Creates and sets the underlying text widget. |
|
451 | """ Creates and sets the underlying text widget. | |
444 | """ |
|
452 | """ | |
445 | layout = QtGui.QVBoxLayout(self) |
|
453 | layout = QtGui.QVBoxLayout(self) | |
446 | layout.setMargin(0) |
|
454 | layout.setMargin(0) | |
447 | if kind == 'plain': |
|
455 | if kind == 'plain': | |
448 | control = QtGui.QPlainTextEdit() |
|
456 | control = QtGui.QPlainTextEdit() | |
449 | elif kind == 'rich': |
|
457 | elif kind == 'rich': | |
450 | control = QtGui.QTextEdit() |
|
458 | control = QtGui.QTextEdit() | |
451 | control.setAcceptRichText(False) |
|
459 | control.setAcceptRichText(False) | |
452 | else: |
|
460 | else: | |
453 | raise ValueError("Kind %s unknown." % repr(kind)) |
|
461 | raise ValueError("Kind %s unknown." % repr(kind)) | |
454 | layout.addWidget(control) |
|
462 | layout.addWidget(control) | |
455 |
|
463 | |||
456 | control.installEventFilter(self) |
|
464 | control.installEventFilter(self) | |
457 | control.setContextMenuPolicy(QtCore.Qt.CustomContextMenu) |
|
465 | control.setContextMenuPolicy(QtCore.Qt.CustomContextMenu) | |
458 | control.customContextMenuRequested.connect(self._show_context_menu) |
|
466 | control.customContextMenuRequested.connect(self._show_context_menu) | |
459 | control.copyAvailable.connect(self.copy_available) |
|
467 | control.copyAvailable.connect(self.copy_available) | |
460 | control.redoAvailable.connect(self.redo_available) |
|
468 | control.redoAvailable.connect(self.redo_available) | |
461 | control.undoAvailable.connect(self.undo_available) |
|
469 | control.undoAvailable.connect(self.undo_available) | |
462 |
|
470 | |||
463 | return control |
|
471 | return control | |
464 |
|
472 | |||
465 | def _event_filter_keypress(self, event): |
|
473 | def _event_filter_keypress(self, event): | |
466 | """ Filter key events for the underlying text widget to create a |
|
474 | """ Filter key events for the underlying text widget to create a | |
467 | console-like interface. |
|
475 | console-like interface. | |
468 | """ |
|
476 | """ | |
469 | key = event.key() |
|
477 | key = event.key() | |
470 | ctrl_down = self._control_key_down(event.modifiers()) |
|
478 | ctrl_down = self._control_key_down(event.modifiers()) | |
471 |
|
479 | |||
472 | # If the key is remapped, return immediately. |
|
480 | # If the key is remapped, return immediately. | |
473 | if ctrl_down and key in self._ctrl_down_remap: |
|
481 | if ctrl_down and key in self._ctrl_down_remap: | |
474 | new_event = QtGui.QKeyEvent(QtCore.QEvent.KeyPress, |
|
482 | new_event = QtGui.QKeyEvent(QtCore.QEvent.KeyPress, | |
475 | self._ctrl_down_remap[key], |
|
483 | self._ctrl_down_remap[key], | |
476 | QtCore.Qt.NoModifier) |
|
484 | QtCore.Qt.NoModifier) | |
477 | QtGui.qApp.sendEvent(self._control, new_event) |
|
485 | QtGui.qApp.sendEvent(self._control, new_event) | |
478 | return True |
|
486 | return True | |
479 |
|
487 | |||
480 | # Otherwise, proceed normally and do not return early. |
|
488 | # Otherwise, proceed normally and do not return early. | |
481 | intercepted = False |
|
489 | intercepted = False | |
482 | cursor = self._control.textCursor() |
|
490 | cursor = self._control.textCursor() | |
483 | position = cursor.position() |
|
491 | position = cursor.position() | |
484 | alt_down = event.modifiers() & QtCore.Qt.AltModifier |
|
492 | alt_down = event.modifiers() & QtCore.Qt.AltModifier | |
485 | shift_down = event.modifiers() & QtCore.Qt.ShiftModifier |
|
493 | shift_down = event.modifiers() & QtCore.Qt.ShiftModifier | |
486 |
|
494 | |||
487 | if event.matches(QtGui.QKeySequence.Paste): |
|
495 | if event.matches(QtGui.QKeySequence.Paste): | |
488 | # Call our paste instead of the underlying text widget's. |
|
496 | # Call our paste instead of the underlying text widget's. | |
489 | self.paste() |
|
497 | self.paste() | |
490 | intercepted = True |
|
498 | intercepted = True | |
491 |
|
499 | |||
492 | elif ctrl_down: |
|
500 | elif ctrl_down: | |
493 |
if key == QtCore.Qt.Key_C |
|
501 | if key == QtCore.Qt.Key_C: | |
494 | intercepted = self._execute_interrupt() |
|
502 | intercepted = self._executing and self._execute_interrupt() | |
495 |
|
503 | |||
496 | elif key == QtCore.Qt.Key_K: |
|
504 | elif key == QtCore.Qt.Key_K: | |
497 | if self._in_buffer(position): |
|
505 | if self._in_buffer(position): | |
498 | cursor.movePosition(QtGui.QTextCursor.EndOfLine, |
|
506 | cursor.movePosition(QtGui.QTextCursor.EndOfLine, | |
499 | QtGui.QTextCursor.KeepAnchor) |
|
507 | QtGui.QTextCursor.KeepAnchor) | |
500 | cursor.removeSelectedText() |
|
508 | cursor.removeSelectedText() | |
501 | intercepted = True |
|
509 | intercepted = True | |
502 |
|
510 | |||
503 | elif key == QtCore.Qt.Key_X: |
|
511 | elif key == QtCore.Qt.Key_X: | |
504 | intercepted = True |
|
512 | intercepted = True | |
505 |
|
513 | |||
506 | elif key == QtCore.Qt.Key_Y: |
|
514 | elif key == QtCore.Qt.Key_Y: | |
507 | self.paste() |
|
515 | self.paste() | |
508 | intercepted = True |
|
516 | intercepted = True | |
509 |
|
517 | |||
510 | elif alt_down: |
|
518 | elif alt_down: | |
511 | if key == QtCore.Qt.Key_B: |
|
519 | if key == QtCore.Qt.Key_B: | |
512 | self._set_cursor(self._get_word_start_cursor(position)) |
|
520 | self._set_cursor(self._get_word_start_cursor(position)) | |
513 | intercepted = True |
|
521 | intercepted = True | |
514 |
|
522 | |||
515 | elif key == QtCore.Qt.Key_F: |
|
523 | elif key == QtCore.Qt.Key_F: | |
516 | self._set_cursor(self._get_word_end_cursor(position)) |
|
524 | self._set_cursor(self._get_word_end_cursor(position)) | |
517 | intercepted = True |
|
525 | intercepted = True | |
518 |
|
526 | |||
519 | elif key == QtCore.Qt.Key_Backspace: |
|
527 | elif key == QtCore.Qt.Key_Backspace: | |
520 | cursor = self._get_word_start_cursor(position) |
|
528 | cursor = self._get_word_start_cursor(position) | |
521 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) |
|
529 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) | |
522 | cursor.removeSelectedText() |
|
530 | cursor.removeSelectedText() | |
523 | intercepted = True |
|
531 | intercepted = True | |
524 |
|
532 | |||
525 | elif key == QtCore.Qt.Key_D: |
|
533 | elif key == QtCore.Qt.Key_D: | |
526 | cursor = self._get_word_end_cursor(position) |
|
534 | cursor = self._get_word_end_cursor(position) | |
527 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) |
|
535 | cursor.setPosition(position, QtGui.QTextCursor.KeepAnchor) | |
528 | cursor.removeSelectedText() |
|
536 | cursor.removeSelectedText() | |
529 | intercepted = True |
|
537 | intercepted = True | |
530 |
|
538 | |||
531 | else: |
|
539 | else: | |
532 | if key in (QtCore.Qt.Key_Return, QtCore.Qt.Key_Enter): |
|
540 | if key in (QtCore.Qt.Key_Return, QtCore.Qt.Key_Enter): | |
533 | if self._reading: |
|
541 | if self._reading: | |
534 | self._append_plain_text('\n') |
|
542 | self._append_plain_text('\n') | |
535 | self._reading = False |
|
543 | self._reading = False | |
536 | if self._reading_callback: |
|
544 | if self._reading_callback: | |
537 | self._reading_callback() |
|
545 | self._reading_callback() | |
538 | elif not self._executing: |
|
546 | elif not self._executing: | |
539 | self.execute(interactive=True) |
|
547 | self.execute(interactive=True) | |
540 | intercepted = True |
|
548 | intercepted = True | |
541 |
|
549 | |||
542 | elif key == QtCore.Qt.Key_Up: |
|
550 | elif key == QtCore.Qt.Key_Up: | |
543 | if self._reading or not self._up_pressed(): |
|
551 | if self._reading or not self._up_pressed(): | |
544 | intercepted = True |
|
552 | intercepted = True | |
545 | else: |
|
553 | else: | |
546 | prompt_line = self._get_prompt_cursor().blockNumber() |
|
554 | prompt_line = self._get_prompt_cursor().blockNumber() | |
547 | intercepted = cursor.blockNumber() <= prompt_line |
|
555 | intercepted = cursor.blockNumber() <= prompt_line | |
548 |
|
556 | |||
549 | elif key == QtCore.Qt.Key_Down: |
|
557 | elif key == QtCore.Qt.Key_Down: | |
550 | if self._reading or not self._down_pressed(): |
|
558 | if self._reading or not self._down_pressed(): | |
551 | intercepted = True |
|
559 | intercepted = True | |
552 | else: |
|
560 | else: | |
553 | end_line = self._get_end_cursor().blockNumber() |
|
561 | end_line = self._get_end_cursor().blockNumber() | |
554 | intercepted = cursor.blockNumber() == end_line |
|
562 | intercepted = cursor.blockNumber() == end_line | |
555 |
|
563 | |||
556 | elif key == QtCore.Qt.Key_Tab: |
|
564 | elif key == QtCore.Qt.Key_Tab: | |
557 | if self._reading: |
|
565 | if self._reading: | |
558 | intercepted = False |
|
566 | intercepted = False | |
559 | else: |
|
567 | else: | |
560 | intercepted = not self._tab_pressed() |
|
568 | intercepted = not self._tab_pressed() | |
561 |
|
569 | |||
562 | elif key == QtCore.Qt.Key_Left: |
|
570 | elif key == QtCore.Qt.Key_Left: | |
563 | intercepted = not self._in_buffer(position - 1) |
|
571 | intercepted = not self._in_buffer(position - 1) | |
564 |
|
572 | |||
565 | elif key == QtCore.Qt.Key_Home: |
|
573 | elif key == QtCore.Qt.Key_Home: | |
566 |
cursor.movePosition(QtGui.QTextCursor.StartOf |
|
574 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock) | |
567 | start_line = cursor.blockNumber() |
|
575 | start_line = cursor.blockNumber() | |
568 | if start_line == self._get_prompt_cursor().blockNumber(): |
|
576 | if start_line == self._get_prompt_cursor().blockNumber(): | |
569 | start_pos = self._prompt_pos |
|
577 | start_pos = self._prompt_pos | |
570 | else: |
|
578 | else: | |
571 | start_pos = cursor.position() |
|
579 | start_pos = cursor.position() | |
572 | start_pos += len(self._continuation_prompt) |
|
580 | start_pos += len(self._continuation_prompt) | |
573 | if shift_down and self._in_buffer(position): |
|
581 | if shift_down and self._in_buffer(position): | |
574 | self._set_selection(position, start_pos) |
|
582 | self._set_selection(position, start_pos) | |
575 | else: |
|
583 | else: | |
576 | self._set_position(start_pos) |
|
584 | self._set_position(start_pos) | |
577 | intercepted = True |
|
585 | intercepted = True | |
578 |
|
586 | |||
579 |
elif key == QtCore.Qt.Key_Backspace |
|
587 | elif key == QtCore.Qt.Key_Backspace: | |
580 |
|
588 | |||
581 | # Line deletion (remove continuation prompt) |
|
589 | # Line deletion (remove continuation prompt) | |
582 | len_prompt = len(self._continuation_prompt) |
|
590 | len_prompt = len(self._continuation_prompt) | |
583 | if not self._reading and \ |
|
591 | if not self._reading and \ | |
584 | cursor.columnNumber() == len_prompt and \ |
|
592 | cursor.columnNumber() == len_prompt and \ | |
585 | position != self._prompt_pos: |
|
593 | position != self._prompt_pos: | |
586 |
cursor. |
|
594 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, | |
587 | QtGui.QTextCursor.KeepAnchor) |
|
595 | QtGui.QTextCursor.KeepAnchor) | |
588 | cursor.removeSelectedText() |
|
596 | cursor.removeSelectedText() | |
589 |
|
597 | |||
590 | # Regular backwards deletion |
|
598 | # Regular backwards deletion | |
591 | else: |
|
599 | else: | |
592 | anchor = cursor.anchor() |
|
600 | anchor = cursor.anchor() | |
593 | if anchor == position: |
|
601 | if anchor == position: | |
594 | intercepted = not self._in_buffer(position - 1) |
|
602 | intercepted = not self._in_buffer(position - 1) | |
595 | else: |
|
603 | else: | |
596 | intercepted = not self._in_buffer(min(anchor, position)) |
|
604 | intercepted = not self._in_buffer(min(anchor, position)) | |
597 |
|
605 | |||
598 | elif key == QtCore.Qt.Key_Delete: |
|
606 | elif key == QtCore.Qt.Key_Delete: | |
599 | anchor = cursor.anchor() |
|
607 | anchor = cursor.anchor() | |
600 | intercepted = not self._in_buffer(min(anchor, position)) |
|
608 | intercepted = not self._in_buffer(min(anchor, position)) | |
601 |
|
609 | |||
602 | # Don't move the cursor if control is down to allow copy-paste using |
|
610 | # Don't move the cursor if control is down to allow copy-paste using | |
603 | # the keyboard in any part of the buffer. |
|
611 | # the keyboard in any part of the buffer. | |
604 | if not ctrl_down: |
|
612 | if not ctrl_down: | |
605 | self._keep_cursor_in_buffer() |
|
613 | self._keep_cursor_in_buffer() | |
606 |
|
614 | |||
607 | return intercepted |
|
615 | return intercepted | |
608 |
|
616 | |||
609 | def _format_as_columns(self, items, separator=' '): |
|
617 | def _format_as_columns(self, items, separator=' '): | |
610 | """ Transform a list of strings into a single string with columns. |
|
618 | """ Transform a list of strings into a single string with columns. | |
611 |
|
619 | |||
612 | Parameters |
|
620 | Parameters | |
613 | ---------- |
|
621 | ---------- | |
614 | items : sequence of strings |
|
622 | items : sequence of strings | |
615 | The strings to process. |
|
623 | The strings to process. | |
616 |
|
624 | |||
617 | separator : str, optional [default is two spaces] |
|
625 | separator : str, optional [default is two spaces] | |
618 | The string that separates columns. |
|
626 | The string that separates columns. | |
619 |
|
627 | |||
620 | Returns |
|
628 | Returns | |
621 | ------- |
|
629 | ------- | |
622 | The formatted string. |
|
630 | The formatted string. | |
623 | """ |
|
631 | """ | |
624 | # Note: this code is adapted from columnize 0.3.2. |
|
632 | # Note: this code is adapted from columnize 0.3.2. | |
625 | # See http://code.google.com/p/pycolumnize/ |
|
633 | # See http://code.google.com/p/pycolumnize/ | |
626 |
|
634 | |||
627 | font_metrics = QtGui.QFontMetrics(self.font) |
|
635 | font_metrics = QtGui.QFontMetrics(self.font) | |
628 | displaywidth = max(5, (self.width() / font_metrics.width(' ')) - 1) |
|
636 | displaywidth = max(5, (self.width() / font_metrics.width(' ')) - 1) | |
629 |
|
637 | |||
630 | # Some degenerate cases. |
|
638 | # Some degenerate cases. | |
631 | size = len(items) |
|
639 | size = len(items) | |
632 | if size == 0: |
|
640 | if size == 0: | |
633 | return '\n' |
|
641 | return '\n' | |
634 | elif size == 1: |
|
642 | elif size == 1: | |
635 | return '%s\n' % str(items[0]) |
|
643 | return '%s\n' % str(items[0]) | |
636 |
|
644 | |||
637 | # Try every row count from 1 upwards |
|
645 | # Try every row count from 1 upwards | |
638 | array_index = lambda nrows, row, col: nrows*col + row |
|
646 | array_index = lambda nrows, row, col: nrows*col + row | |
639 | for nrows in range(1, size): |
|
647 | for nrows in range(1, size): | |
640 | ncols = (size + nrows - 1) // nrows |
|
648 | ncols = (size + nrows - 1) // nrows | |
641 | colwidths = [] |
|
649 | colwidths = [] | |
642 | totwidth = -len(separator) |
|
650 | totwidth = -len(separator) | |
643 | for col in range(ncols): |
|
651 | for col in range(ncols): | |
644 | # Get max column width for this column |
|
652 | # Get max column width for this column | |
645 | colwidth = 0 |
|
653 | colwidth = 0 | |
646 | for row in range(nrows): |
|
654 | for row in range(nrows): | |
647 | i = array_index(nrows, row, col) |
|
655 | i = array_index(nrows, row, col) | |
648 | if i >= size: break |
|
656 | if i >= size: break | |
649 | x = items[i] |
|
657 | x = items[i] | |
650 | colwidth = max(colwidth, len(x)) |
|
658 | colwidth = max(colwidth, len(x)) | |
651 | colwidths.append(colwidth) |
|
659 | colwidths.append(colwidth) | |
652 | totwidth += colwidth + len(separator) |
|
660 | totwidth += colwidth + len(separator) | |
653 | if totwidth > displaywidth: |
|
661 | if totwidth > displaywidth: | |
654 | break |
|
662 | break | |
655 | if totwidth <= displaywidth: |
|
663 | if totwidth <= displaywidth: | |
656 | break |
|
664 | break | |
657 |
|
665 | |||
658 | # The smallest number of rows computed and the max widths for each |
|
666 | # The smallest number of rows computed and the max widths for each | |
659 | # column has been obtained. Now we just have to format each of the rows. |
|
667 | # column has been obtained. Now we just have to format each of the rows. | |
660 | string = '' |
|
668 | string = '' | |
661 | for row in range(nrows): |
|
669 | for row in range(nrows): | |
662 | texts = [] |
|
670 | texts = [] | |
663 | for col in range(ncols): |
|
671 | for col in range(ncols): | |
664 | i = row + nrows*col |
|
672 | i = row + nrows*col | |
665 | if i >= size: |
|
673 | if i >= size: | |
666 | texts.append('') |
|
674 | texts.append('') | |
667 | else: |
|
675 | else: | |
668 | texts.append(items[i]) |
|
676 | texts.append(items[i]) | |
669 | while texts and not texts[-1]: |
|
677 | while texts and not texts[-1]: | |
670 | del texts[-1] |
|
678 | del texts[-1] | |
671 | for col in range(len(texts)): |
|
679 | for col in range(len(texts)): | |
672 | texts[col] = texts[col].ljust(colwidths[col]) |
|
680 | texts[col] = texts[col].ljust(colwidths[col]) | |
673 | string += '%s\n' % str(separator.join(texts)) |
|
681 | string += '%s\n' % str(separator.join(texts)) | |
674 | return string |
|
682 | return string | |
675 |
|
683 | |||
676 | def _get_block_plain_text(self, block): |
|
684 | def _get_block_plain_text(self, block): | |
677 | """ Given a QTextBlock, return its unformatted text. |
|
685 | """ Given a QTextBlock, return its unformatted text. | |
678 | """ |
|
686 | """ | |
679 | cursor = QtGui.QTextCursor(block) |
|
687 | cursor = QtGui.QTextCursor(block) | |
680 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock) |
|
688 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock) | |
681 | cursor.movePosition(QtGui.QTextCursor.EndOfBlock, |
|
689 | cursor.movePosition(QtGui.QTextCursor.EndOfBlock, | |
682 | QtGui.QTextCursor.KeepAnchor) |
|
690 | QtGui.QTextCursor.KeepAnchor) | |
683 | return str(cursor.selection().toPlainText()) |
|
691 | return str(cursor.selection().toPlainText()) | |
684 |
|
692 | |||
685 | def _get_cursor(self): |
|
693 | def _get_cursor(self): | |
686 | """ Convenience method that returns a cursor for the current position. |
|
694 | """ Convenience method that returns a cursor for the current position. | |
687 | """ |
|
695 | """ | |
688 | return self._control.textCursor() |
|
696 | return self._control.textCursor() | |
689 |
|
697 | |||
690 | def _get_end_cursor(self): |
|
698 | def _get_end_cursor(self): | |
691 | """ Convenience method that returns a cursor for the last character. |
|
699 | """ Convenience method that returns a cursor for the last character. | |
692 | """ |
|
700 | """ | |
693 | cursor = self._control.textCursor() |
|
701 | cursor = self._control.textCursor() | |
694 | cursor.movePosition(QtGui.QTextCursor.End) |
|
702 | cursor.movePosition(QtGui.QTextCursor.End) | |
695 | return cursor |
|
703 | return cursor | |
696 |
|
704 | |||
697 | def _get_input_buffer_cursor_line(self): |
|
705 | def _get_input_buffer_cursor_line(self): | |
698 | """ The text in the line of the input buffer in which the user's cursor |
|
706 | """ The text in the line of the input buffer in which the user's cursor | |
699 | rests. Returns a string if there is such a line; otherwise, None. |
|
707 | rests. Returns a string if there is such a line; otherwise, None. | |
700 | """ |
|
708 | """ | |
701 | if self._executing: |
|
709 | if self._executing: | |
702 | return None |
|
710 | return None | |
703 | cursor = self._control.textCursor() |
|
711 | cursor = self._control.textCursor() | |
704 | if cursor.position() >= self._prompt_pos: |
|
712 | if cursor.position() >= self._prompt_pos: | |
705 | text = self._get_block_plain_text(cursor.block()) |
|
713 | text = self._get_block_plain_text(cursor.block()) | |
706 | if cursor.blockNumber() == self._get_prompt_cursor().blockNumber(): |
|
714 | if cursor.blockNumber() == self._get_prompt_cursor().blockNumber(): | |
707 | return text[len(self._prompt):] |
|
715 | return text[len(self._prompt):] | |
708 | else: |
|
716 | else: | |
709 | return text[len(self._continuation_prompt):] |
|
717 | return text[len(self._continuation_prompt):] | |
710 | else: |
|
718 | else: | |
711 | return None |
|
719 | return None | |
712 |
|
720 | |||
713 | def _get_prompt_cursor(self): |
|
721 | def _get_prompt_cursor(self): | |
714 | """ Convenience method that returns a cursor for the prompt position. |
|
722 | """ Convenience method that returns a cursor for the prompt position. | |
715 | """ |
|
723 | """ | |
716 | cursor = self._control.textCursor() |
|
724 | cursor = self._control.textCursor() | |
717 | cursor.setPosition(self._prompt_pos) |
|
725 | cursor.setPosition(self._prompt_pos) | |
718 | return cursor |
|
726 | return cursor | |
719 |
|
727 | |||
720 | def _get_selection_cursor(self, start, end): |
|
728 | def _get_selection_cursor(self, start, end): | |
721 | """ Convenience method that returns a cursor with text selected between |
|
729 | """ Convenience method that returns a cursor with text selected between | |
722 | the positions 'start' and 'end'. |
|
730 | the positions 'start' and 'end'. | |
723 | """ |
|
731 | """ | |
724 | cursor = self._control.textCursor() |
|
732 | cursor = self._control.textCursor() | |
725 | cursor.setPosition(start) |
|
733 | cursor.setPosition(start) | |
726 | cursor.setPosition(end, QtGui.QTextCursor.KeepAnchor) |
|
734 | cursor.setPosition(end, QtGui.QTextCursor.KeepAnchor) | |
727 | return cursor |
|
735 | return cursor | |
728 |
|
736 | |||
729 | def _get_word_start_cursor(self, position): |
|
737 | def _get_word_start_cursor(self, position): | |
730 | """ Find the start of the word to the left the given position. If a |
|
738 | """ Find the start of the word to the left the given position. If a | |
731 | sequence of non-word characters precedes the first word, skip over |
|
739 | sequence of non-word characters precedes the first word, skip over | |
732 | them. (This emulates the behavior of bash, emacs, etc.) |
|
740 | them. (This emulates the behavior of bash, emacs, etc.) | |
733 | """ |
|
741 | """ | |
734 | document = self._control.document() |
|
742 | document = self._control.document() | |
735 | position -= 1 |
|
743 | position -= 1 | |
736 |
while self._ |
|
744 | while position >= self._prompt_pos and \ | |
737 | not document.characterAt(position).isLetterOrNumber(): |
|
745 | not document.characterAt(position).isLetterOrNumber(): | |
738 | position -= 1 |
|
746 | position -= 1 | |
739 |
while self._ |
|
747 | while position >= self._prompt_pos and \ | |
740 | document.characterAt(position).isLetterOrNumber(): |
|
748 | document.characterAt(position).isLetterOrNumber(): | |
741 | position -= 1 |
|
749 | position -= 1 | |
742 | cursor = self._control.textCursor() |
|
750 | cursor = self._control.textCursor() | |
743 | cursor.setPosition(position + 1) |
|
751 | cursor.setPosition(position + 1) | |
744 | return cursor |
|
752 | return cursor | |
745 |
|
753 | |||
746 | def _get_word_end_cursor(self, position): |
|
754 | def _get_word_end_cursor(self, position): | |
747 | """ Find the end of the word to the right the given position. If a |
|
755 | """ Find the end of the word to the right the given position. If a | |
748 | sequence of non-word characters precedes the first word, skip over |
|
756 | sequence of non-word characters precedes the first word, skip over | |
749 | them. (This emulates the behavior of bash, emacs, etc.) |
|
757 | them. (This emulates the behavior of bash, emacs, etc.) | |
750 | """ |
|
758 | """ | |
751 | document = self._control.document() |
|
759 | document = self._control.document() | |
752 | end = self._get_end_cursor().position() |
|
760 | end = self._get_end_cursor().position() | |
753 | while position < end and \ |
|
761 | while position < end and \ | |
754 | not document.characterAt(position).isLetterOrNumber(): |
|
762 | not document.characterAt(position).isLetterOrNumber(): | |
755 | position += 1 |
|
763 | position += 1 | |
756 | while position < end and \ |
|
764 | while position < end and \ | |
757 | document.characterAt(position).isLetterOrNumber(): |
|
765 | document.characterAt(position).isLetterOrNumber(): | |
758 | position += 1 |
|
766 | position += 1 | |
759 | cursor = self._control.textCursor() |
|
767 | cursor = self._control.textCursor() | |
760 | cursor.setPosition(position) |
|
768 | cursor.setPosition(position) | |
761 | return cursor |
|
769 | return cursor | |
762 |
|
770 | |||
763 | def _insert_html(self, cursor, html): |
|
771 | def _insert_html(self, cursor, html): | |
764 | """ Insert HTML using the specified cursor in such a way that future |
|
772 | """ Insert HTML using the specified cursor in such a way that future | |
765 | formatting is unaffected. |
|
773 | formatting is unaffected. | |
766 | """ |
|
774 | """ | |
|
775 | cursor.beginEditBlock() | |||
767 | cursor.insertHtml(html) |
|
776 | cursor.insertHtml(html) | |
768 |
|
777 | |||
769 | # After inserting HTML, the text document "remembers" it's in "html |
|
778 | # After inserting HTML, the text document "remembers" it's in "html | |
770 | # mode", which means that subsequent calls adding plain text will result |
|
779 | # mode", which means that subsequent calls adding plain text will result | |
771 | # in unwanted formatting, lost tab characters, etc. The following code |
|
780 | # in unwanted formatting, lost tab characters, etc. The following code | |
772 | # hacks around this behavior, which I consider to be a bug in Qt. |
|
781 | # hacks around this behavior, which I consider to be a bug in Qt. | |
773 | cursor.movePosition(QtGui.QTextCursor.Left, |
|
782 | cursor.movePosition(QtGui.QTextCursor.Left, | |
774 | QtGui.QTextCursor.KeepAnchor) |
|
783 | QtGui.QTextCursor.KeepAnchor) | |
775 | if cursor.selection().toPlainText() == ' ': |
|
784 | if cursor.selection().toPlainText() == ' ': | |
776 | cursor.removeSelectedText() |
|
785 | cursor.removeSelectedText() | |
777 | cursor.movePosition(QtGui.QTextCursor.Right) |
|
786 | cursor.movePosition(QtGui.QTextCursor.Right) | |
778 | cursor.insertText(' ', QtGui.QTextCharFormat()) |
|
787 | cursor.insertText(' ', QtGui.QTextCharFormat()) | |
|
788 | cursor.endEditBlock() | |||
779 |
|
789 | |||
780 | def _insert_into_buffer(self, text): |
|
790 | def _insert_into_buffer(self, text): | |
781 | """ Inserts text into the input buffer at the current cursor position, |
|
791 | """ Inserts text into the input buffer at the current cursor position, | |
782 | ensuring that continuation prompts are inserted as necessary. |
|
792 | ensuring that continuation prompts are inserted as necessary. | |
783 | """ |
|
793 | """ | |
784 | lines = str(text).splitlines(True) |
|
794 | lines = str(text).splitlines(True) | |
785 | if lines: |
|
795 | if lines: | |
786 | self._keep_cursor_in_buffer() |
|
796 | self._keep_cursor_in_buffer() | |
787 | cursor = self._control.textCursor() |
|
797 | cursor = self._control.textCursor() | |
788 | cursor.beginEditBlock() |
|
798 | cursor.beginEditBlock() | |
789 | cursor.insertText(lines[0]) |
|
799 | cursor.insertText(lines[0]) | |
790 | for line in lines[1:]: |
|
800 | for line in lines[1:]: | |
791 | if self._continuation_prompt_html is None: |
|
801 | if self._continuation_prompt_html is None: | |
792 | cursor.insertText(self._continuation_prompt) |
|
802 | cursor.insertText(self._continuation_prompt) | |
793 | else: |
|
803 | else: | |
794 | self._insert_html(cursor, self._continuation_prompt_html) |
|
804 | self._insert_html(cursor, self._continuation_prompt_html) | |
795 | cursor.insertText(line) |
|
805 | cursor.insertText(line) | |
796 | cursor.endEditBlock() |
|
806 | cursor.endEditBlock() | |
797 | self._control.setTextCursor(cursor) |
|
807 | self._control.setTextCursor(cursor) | |
798 |
|
808 | |||
799 | def _in_buffer(self, position): |
|
809 | def _in_buffer(self, position): | |
800 | """ Returns whether the given position is inside the editing region. |
|
810 | """ Returns whether the given position is inside the editing region. | |
801 | """ |
|
811 | """ | |
802 | return position >= self._prompt_pos |
|
812 | cursor = self._control.textCursor() | |
|
813 | cursor.setPosition(position) | |||
|
814 | line = cursor.blockNumber() | |||
|
815 | prompt_line = self._get_prompt_cursor().blockNumber() | |||
|
816 | if line == prompt_line: | |||
|
817 | return position >= self._prompt_pos | |||
|
818 | elif line > prompt_line: | |||
|
819 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock) | |||
|
820 | prompt_pos = cursor.position() + len(self._continuation_prompt) | |||
|
821 | return position >= prompt_pos | |||
|
822 | return False | |||
803 |
|
823 | |||
804 | def _keep_cursor_in_buffer(self): |
|
824 | def _keep_cursor_in_buffer(self): | |
805 | """ Ensures that the cursor is inside the editing region. Returns |
|
825 | """ Ensures that the cursor is inside the editing region. Returns | |
806 | whether the cursor was moved. |
|
826 | whether the cursor was moved. | |
807 | """ |
|
827 | """ | |
808 | cursor = self._control.textCursor() |
|
828 | cursor = self._control.textCursor() | |
809 |
if cursor.position() |
|
829 | if self._in_buffer(cursor.position()): | |
|
830 | return False | |||
|
831 | else: | |||
810 | cursor.movePosition(QtGui.QTextCursor.End) |
|
832 | cursor.movePosition(QtGui.QTextCursor.End) | |
811 | self._control.setTextCursor(cursor) |
|
833 | self._control.setTextCursor(cursor) | |
812 | return True |
|
834 | return True | |
813 | else: |
|
|||
814 | return False |
|
|||
815 |
|
835 | |||
816 | def _prompt_started(self): |
|
836 | def _prompt_started(self): | |
817 | """ Called immediately after a new prompt is displayed. |
|
837 | """ Called immediately after a new prompt is displayed. | |
818 | """ |
|
838 | """ | |
819 | # Temporarily disable the maximum block count to permit undo/redo and |
|
839 | # Temporarily disable the maximum block count to permit undo/redo and | |
820 | # to ensure that the prompt position does not change due to truncation. |
|
840 | # to ensure that the prompt position does not change due to truncation. | |
821 | self._control.document().setMaximumBlockCount(0) |
|
841 | self._control.document().setMaximumBlockCount(0) | |
822 | self._control.setUndoRedoEnabled(True) |
|
842 | self._control.setUndoRedoEnabled(True) | |
823 |
|
843 | |||
824 | self._control.setReadOnly(False) |
|
844 | self._control.setReadOnly(False) | |
825 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
845 | self._control.moveCursor(QtGui.QTextCursor.End) | |
826 |
|
846 | |||
827 | self._executing = False |
|
847 | self._executing = False | |
828 | self._prompt_started_hook() |
|
848 | self._prompt_started_hook() | |
829 |
|
849 | |||
830 | def _prompt_finished(self): |
|
850 | def _prompt_finished(self): | |
831 | """ Called immediately after a prompt is finished, i.e. when some input |
|
851 | """ Called immediately after a prompt is finished, i.e. when some input | |
832 | will be processed and a new prompt displayed. |
|
852 | will be processed and a new prompt displayed. | |
833 | """ |
|
853 | """ | |
834 | self._control.setUndoRedoEnabled(False) |
|
854 | self._control.setUndoRedoEnabled(False) | |
835 | self._control.setReadOnly(True) |
|
855 | self._control.setReadOnly(True) | |
836 | self._prompt_finished_hook() |
|
856 | self._prompt_finished_hook() | |
837 |
|
857 | |||
838 | def _readline(self, prompt='', callback=None): |
|
858 | def _readline(self, prompt='', callback=None): | |
839 | """ Reads one line of input from the user. |
|
859 | """ Reads one line of input from the user. | |
840 |
|
860 | |||
841 | Parameters |
|
861 | Parameters | |
842 | ---------- |
|
862 | ---------- | |
843 | prompt : str, optional |
|
863 | prompt : str, optional | |
844 | The prompt to print before reading the line. |
|
864 | The prompt to print before reading the line. | |
845 |
|
865 | |||
846 | callback : callable, optional |
|
866 | callback : callable, optional | |
847 | A callback to execute with the read line. If not specified, input is |
|
867 | A callback to execute with the read line. If not specified, input is | |
848 | read *synchronously* and this method does not return until it has |
|
868 | read *synchronously* and this method does not return until it has | |
849 | been read. |
|
869 | been read. | |
850 |
|
870 | |||
851 | Returns |
|
871 | Returns | |
852 | ------- |
|
872 | ------- | |
853 | If a callback is specified, returns nothing. Otherwise, returns the |
|
873 | If a callback is specified, returns nothing. Otherwise, returns the | |
854 | input string with the trailing newline stripped. |
|
874 | input string with the trailing newline stripped. | |
855 | """ |
|
875 | """ | |
856 | if self._reading: |
|
876 | if self._reading: | |
857 | raise RuntimeError('Cannot read a line. Widget is already reading.') |
|
877 | raise RuntimeError('Cannot read a line. Widget is already reading.') | |
858 |
|
878 | |||
859 | if not callback and not self.isVisible(): |
|
879 | if not callback and not self.isVisible(): | |
860 | # If the user cannot see the widget, this function cannot return. |
|
880 | # If the user cannot see the widget, this function cannot return. | |
861 | raise RuntimeError('Cannot synchronously read a line if the widget' |
|
881 | raise RuntimeError('Cannot synchronously read a line if the widget' | |
862 | 'is not visible!') |
|
882 | 'is not visible!') | |
863 |
|
883 | |||
864 | self._reading = True |
|
884 | self._reading = True | |
865 | self._show_prompt(prompt, newline=False) |
|
885 | self._show_prompt(prompt, newline=False) | |
866 |
|
886 | |||
867 | if callback is None: |
|
887 | if callback is None: | |
868 | self._reading_callback = None |
|
888 | self._reading_callback = None | |
869 | while self._reading: |
|
889 | while self._reading: | |
870 | QtCore.QCoreApplication.processEvents() |
|
890 | QtCore.QCoreApplication.processEvents() | |
871 | return self.input_buffer.rstrip('\n') |
|
891 | return self.input_buffer.rstrip('\n') | |
872 |
|
892 | |||
873 | else: |
|
893 | else: | |
874 | self._reading_callback = lambda: \ |
|
894 | self._reading_callback = lambda: \ | |
875 | callback(self.input_buffer.rstrip('\n')) |
|
895 | callback(self.input_buffer.rstrip('\n')) | |
876 |
|
896 | |||
877 | def _reset(self): |
|
897 | def _reset(self): | |
878 | """ Clears the console and resets internal state variables. |
|
898 | """ Clears the console and resets internal state variables. | |
879 | """ |
|
899 | """ | |
880 | self._control.clear() |
|
900 | self._control.clear() | |
881 | self._executing = self._reading = False |
|
901 | self._executing = self._reading = False | |
882 |
|
902 | |||
883 | def _set_continuation_prompt(self, prompt, html=False): |
|
903 | def _set_continuation_prompt(self, prompt, html=False): | |
884 | """ Sets the continuation prompt. |
|
904 | """ Sets the continuation prompt. | |
885 |
|
905 | |||
886 | Parameters |
|
906 | Parameters | |
887 | ---------- |
|
907 | ---------- | |
888 | prompt : str |
|
908 | prompt : str | |
889 | The prompt to show when more input is needed. |
|
909 | The prompt to show when more input is needed. | |
890 |
|
910 | |||
891 | html : bool, optional (default False) |
|
911 | html : bool, optional (default False) | |
892 | If set, the prompt will be inserted as formatted HTML. Otherwise, |
|
912 | If set, the prompt will be inserted as formatted HTML. Otherwise, | |
893 | the prompt will be treated as plain text, though ANSI color codes |
|
913 | the prompt will be treated as plain text, though ANSI color codes | |
894 | will be handled. |
|
914 | will be handled. | |
895 | """ |
|
915 | """ | |
896 | if html: |
|
916 | if html: | |
897 | self._continuation_prompt_html = prompt |
|
917 | self._continuation_prompt_html = prompt | |
898 | else: |
|
918 | else: | |
899 | self._continuation_prompt = prompt |
|
919 | self._continuation_prompt = prompt | |
900 | self._continuation_prompt_html = None |
|
920 | self._continuation_prompt_html = None | |
901 |
|
921 | |||
902 | def _set_cursor(self, cursor): |
|
922 | def _set_cursor(self, cursor): | |
903 | """ Convenience method to set the current cursor. |
|
923 | """ Convenience method to set the current cursor. | |
904 | """ |
|
924 | """ | |
905 | self._control.setTextCursor(cursor) |
|
925 | self._control.setTextCursor(cursor) | |
906 |
|
926 | |||
907 | def _set_position(self, position): |
|
927 | def _set_position(self, position): | |
908 | """ Convenience method to set the position of the cursor. |
|
928 | """ Convenience method to set the position of the cursor. | |
909 | """ |
|
929 | """ | |
910 | cursor = self._control.textCursor() |
|
930 | cursor = self._control.textCursor() | |
911 | cursor.setPosition(position) |
|
931 | cursor.setPosition(position) | |
912 | self._control.setTextCursor(cursor) |
|
932 | self._control.setTextCursor(cursor) | |
913 |
|
933 | |||
914 | def _set_selection(self, start, end): |
|
934 | def _set_selection(self, start, end): | |
915 | """ Convenience method to set the current selected text. |
|
935 | """ Convenience method to set the current selected text. | |
916 | """ |
|
936 | """ | |
917 | self._control.setTextCursor(self._get_selection_cursor(start, end)) |
|
937 | self._control.setTextCursor(self._get_selection_cursor(start, end)) | |
918 |
|
938 | |||
919 | def _show_context_menu(self, pos): |
|
939 | def _show_context_menu(self, pos): | |
920 | """ Shows a context menu at the given QPoint (in widget coordinates). |
|
940 | """ Shows a context menu at the given QPoint (in widget coordinates). | |
921 | """ |
|
941 | """ | |
922 | menu = QtGui.QMenu() |
|
942 | menu = QtGui.QMenu() | |
923 |
|
943 | |||
924 | copy_action = QtGui.QAction('Copy', menu) |
|
944 | copy_action = QtGui.QAction('Copy', menu) | |
925 | copy_action.triggered.connect(self.copy) |
|
945 | copy_action.triggered.connect(self.copy) | |
926 | copy_action.setEnabled(self._get_cursor().hasSelection()) |
|
946 | copy_action.setEnabled(self._get_cursor().hasSelection()) | |
927 | copy_action.setShortcut(QtGui.QKeySequence.Copy) |
|
947 | copy_action.setShortcut(QtGui.QKeySequence.Copy) | |
928 | menu.addAction(copy_action) |
|
948 | menu.addAction(copy_action) | |
929 |
|
949 | |||
930 | paste_action = QtGui.QAction('Paste', menu) |
|
950 | paste_action = QtGui.QAction('Paste', menu) | |
931 | paste_action.triggered.connect(self.paste) |
|
951 | paste_action.triggered.connect(self.paste) | |
932 | paste_action.setEnabled(self.can_paste()) |
|
952 | paste_action.setEnabled(self.can_paste()) | |
933 | paste_action.setShortcut(QtGui.QKeySequence.Paste) |
|
953 | paste_action.setShortcut(QtGui.QKeySequence.Paste) | |
934 | menu.addAction(paste_action) |
|
954 | menu.addAction(paste_action) | |
935 | menu.addSeparator() |
|
955 | menu.addSeparator() | |
936 |
|
956 | |||
937 | select_all_action = QtGui.QAction('Select All', menu) |
|
957 | select_all_action = QtGui.QAction('Select All', menu) | |
938 | select_all_action.triggered.connect(self.select_all) |
|
958 | select_all_action.triggered.connect(self.select_all) | |
939 | menu.addAction(select_all_action) |
|
959 | menu.addAction(select_all_action) | |
940 |
|
960 | |||
941 | menu.exec_(self._control.mapToGlobal(pos)) |
|
961 | menu.exec_(self._control.mapToGlobal(pos)) | |
942 |
|
962 | |||
943 | def _show_prompt(self, prompt=None, html=False, newline=True): |
|
963 | def _show_prompt(self, prompt=None, html=False, newline=True): | |
944 | """ Writes a new prompt at the end of the buffer. |
|
964 | """ Writes a new prompt at the end of the buffer. | |
945 |
|
965 | |||
946 | Parameters |
|
966 | Parameters | |
947 | ---------- |
|
967 | ---------- | |
948 | prompt : str, optional |
|
968 | prompt : str, optional | |
949 | The prompt to show. If not specified, the previous prompt is used. |
|
969 | The prompt to show. If not specified, the previous prompt is used. | |
950 |
|
970 | |||
951 | html : bool, optional (default False) |
|
971 | html : bool, optional (default False) | |
952 | Only relevant when a prompt is specified. If set, the prompt will |
|
972 | Only relevant when a prompt is specified. If set, the prompt will | |
953 | be inserted as formatted HTML. Otherwise, the prompt will be treated |
|
973 | be inserted as formatted HTML. Otherwise, the prompt will be treated | |
954 | as plain text, though ANSI color codes will be handled. |
|
974 | as plain text, though ANSI color codes will be handled. | |
955 |
|
975 | |||
956 | newline : bool, optional (default True) |
|
976 | newline : bool, optional (default True) | |
957 | If set, a new line will be written before showing the prompt if |
|
977 | If set, a new line will be written before showing the prompt if | |
958 | there is not already a newline at the end of the buffer. |
|
978 | there is not already a newline at the end of the buffer. | |
959 | """ |
|
979 | """ | |
960 | # Insert a preliminary newline, if necessary. |
|
980 | # Insert a preliminary newline, if necessary. | |
961 | if newline: |
|
981 | if newline: | |
962 | cursor = self._get_end_cursor() |
|
982 | cursor = self._get_end_cursor() | |
963 | if cursor.position() > 0: |
|
983 | if cursor.position() > 0: | |
964 | cursor.movePosition(QtGui.QTextCursor.Left, |
|
984 | cursor.movePosition(QtGui.QTextCursor.Left, | |
965 | QtGui.QTextCursor.KeepAnchor) |
|
985 | QtGui.QTextCursor.KeepAnchor) | |
966 | if str(cursor.selection().toPlainText()) != '\n': |
|
986 | if str(cursor.selection().toPlainText()) != '\n': | |
967 | self._append_plain_text('\n') |
|
987 | self._append_plain_text('\n') | |
968 |
|
988 | |||
969 | # Write the prompt. |
|
989 | # Write the prompt. | |
970 | if prompt is None: |
|
990 | if prompt is None: | |
971 | if self._prompt_html is None: |
|
991 | if self._prompt_html is None: | |
972 | self._append_plain_text(self._prompt) |
|
992 | self._append_plain_text(self._prompt) | |
973 | else: |
|
993 | else: | |
974 | self._append_html(self._prompt_html) |
|
994 | self._append_html(self._prompt_html) | |
975 | else: |
|
995 | else: | |
976 | if html: |
|
996 | if html: | |
977 | self._prompt = self._append_html_fetching_plain_text(prompt) |
|
997 | self._prompt = self._append_html_fetching_plain_text(prompt) | |
978 | self._prompt_html = prompt |
|
998 | self._prompt_html = prompt | |
979 | else: |
|
999 | else: | |
980 | self._append_plain_text(prompt) |
|
1000 | self._append_plain_text(prompt) | |
981 | self._prompt = prompt |
|
1001 | self._prompt = prompt | |
982 | self._prompt_html = None |
|
1002 | self._prompt_html = None | |
983 |
|
1003 | |||
984 | self._prompt_pos = self._get_end_cursor().position() |
|
1004 | self._prompt_pos = self._get_end_cursor().position() | |
985 | self._prompt_started() |
|
1005 | self._prompt_started() | |
986 |
|
1006 | |||
987 | def _show_continuation_prompt(self): |
|
1007 | def _show_continuation_prompt(self): | |
988 | """ Writes a new continuation prompt at the end of the buffer. |
|
1008 | """ Writes a new continuation prompt at the end of the buffer. | |
989 | """ |
|
1009 | """ | |
990 | if self._continuation_prompt_html is None: |
|
1010 | if self._continuation_prompt_html is None: | |
991 | self._append_plain_text(self._continuation_prompt) |
|
1011 | self._append_plain_text(self._continuation_prompt) | |
992 | else: |
|
1012 | else: | |
993 | self._continuation_prompt = self._append_html_fetching_plain_text( |
|
1013 | self._continuation_prompt = self._append_html_fetching_plain_text( | |
994 | self._continuation_prompt_html) |
|
1014 | self._continuation_prompt_html) | |
995 |
|
1015 | |||
996 | self._prompt_started() |
|
1016 | self._prompt_started() | |
997 |
|
1017 | |||
998 |
|
1018 | |||
999 | class HistoryConsoleWidget(ConsoleWidget): |
|
1019 | class HistoryConsoleWidget(ConsoleWidget): | |
1000 | """ A ConsoleWidget that keeps a history of the commands that have been |
|
1020 | """ A ConsoleWidget that keeps a history of the commands that have been | |
1001 | executed. |
|
1021 | executed. | |
1002 | """ |
|
1022 | """ | |
1003 |
|
1023 | |||
1004 | #--------------------------------------------------------------------------- |
|
1024 | #--------------------------------------------------------------------------- | |
1005 | # 'object' interface |
|
1025 | # 'object' interface | |
1006 | #--------------------------------------------------------------------------- |
|
1026 | #--------------------------------------------------------------------------- | |
1007 |
|
1027 | |||
1008 | def __init__(self, *args, **kw): |
|
1028 | def __init__(self, *args, **kw): | |
1009 | super(HistoryConsoleWidget, self).__init__(*args, **kw) |
|
1029 | super(HistoryConsoleWidget, self).__init__(*args, **kw) | |
1010 | self._history = [] |
|
1030 | self._history = [] | |
1011 | self._history_index = 0 |
|
1031 | self._history_index = 0 | |
1012 |
|
1032 | |||
1013 | #--------------------------------------------------------------------------- |
|
1033 | #--------------------------------------------------------------------------- | |
1014 | # 'ConsoleWidget' public interface |
|
1034 | # 'ConsoleWidget' public interface | |
1015 | #--------------------------------------------------------------------------- |
|
1035 | #--------------------------------------------------------------------------- | |
1016 |
|
1036 | |||
1017 | def execute(self, source=None, hidden=False, interactive=False): |
|
1037 | def execute(self, source=None, hidden=False, interactive=False): | |
1018 | """ Reimplemented to the store history. |
|
1038 | """ Reimplemented to the store history. | |
1019 | """ |
|
1039 | """ | |
1020 | if not hidden: |
|
1040 | if not hidden: | |
1021 | history = self.input_buffer if source is None else source |
|
1041 | history = self.input_buffer if source is None else source | |
1022 |
|
1042 | |||
1023 | executed = super(HistoryConsoleWidget, self).execute( |
|
1043 | executed = super(HistoryConsoleWidget, self).execute( | |
1024 | source, hidden, interactive) |
|
1044 | source, hidden, interactive) | |
1025 |
|
1045 | |||
1026 | if executed and not hidden: |
|
1046 | if executed and not hidden: | |
1027 | self._history.append(history.rstrip()) |
|
1047 | self._history.append(history.rstrip()) | |
1028 | self._history_index = len(self._history) |
|
1048 | self._history_index = len(self._history) | |
1029 |
|
1049 | |||
1030 | return executed |
|
1050 | return executed | |
1031 |
|
1051 | |||
1032 | #--------------------------------------------------------------------------- |
|
1052 | #--------------------------------------------------------------------------- | |
1033 | # 'ConsoleWidget' abstract interface |
|
1053 | # 'ConsoleWidget' abstract interface | |
1034 | #--------------------------------------------------------------------------- |
|
1054 | #--------------------------------------------------------------------------- | |
1035 |
|
1055 | |||
1036 | def _up_pressed(self): |
|
1056 | def _up_pressed(self): | |
1037 | """ Called when the up key is pressed. Returns whether to continue |
|
1057 | """ Called when the up key is pressed. Returns whether to continue | |
1038 | processing the event. |
|
1058 | processing the event. | |
1039 | """ |
|
1059 | """ | |
1040 | prompt_cursor = self._get_prompt_cursor() |
|
1060 | prompt_cursor = self._get_prompt_cursor() | |
1041 | if self._get_cursor().blockNumber() == prompt_cursor.blockNumber(): |
|
1061 | if self._get_cursor().blockNumber() == prompt_cursor.blockNumber(): | |
1042 | self.history_previous() |
|
1062 | self.history_previous() | |
1043 |
|
1063 | |||
1044 | # Go to the first line of prompt for seemless history scrolling. |
|
1064 | # Go to the first line of prompt for seemless history scrolling. | |
1045 | cursor = self._get_prompt_cursor() |
|
1065 | cursor = self._get_prompt_cursor() | |
1046 | cursor.movePosition(QtGui.QTextCursor.EndOfLine) |
|
1066 | cursor.movePosition(QtGui.QTextCursor.EndOfLine) | |
1047 | self._set_cursor(cursor) |
|
1067 | self._set_cursor(cursor) | |
1048 |
|
1068 | |||
1049 | return False |
|
1069 | return False | |
1050 | return True |
|
1070 | return True | |
1051 |
|
1071 | |||
1052 | def _down_pressed(self): |
|
1072 | def _down_pressed(self): | |
1053 | """ Called when the down key is pressed. Returns whether to continue |
|
1073 | """ Called when the down key is pressed. Returns whether to continue | |
1054 | processing the event. |
|
1074 | processing the event. | |
1055 | """ |
|
1075 | """ | |
1056 | end_cursor = self._get_end_cursor() |
|
1076 | end_cursor = self._get_end_cursor() | |
1057 | if self._get_cursor().blockNumber() == end_cursor.blockNumber(): |
|
1077 | if self._get_cursor().blockNumber() == end_cursor.blockNumber(): | |
1058 | self.history_next() |
|
1078 | self.history_next() | |
1059 | return False |
|
1079 | return False | |
1060 | return True |
|
1080 | return True | |
1061 |
|
1081 | |||
1062 | #--------------------------------------------------------------------------- |
|
1082 | #--------------------------------------------------------------------------- | |
1063 | # 'HistoryConsoleWidget' interface |
|
1083 | # 'HistoryConsoleWidget' interface | |
1064 | #--------------------------------------------------------------------------- |
|
1084 | #--------------------------------------------------------------------------- | |
1065 |
|
1085 | |||
1066 | def history_previous(self): |
|
1086 | def history_previous(self): | |
1067 | """ If possible, set the input buffer to the previous item in the |
|
1087 | """ If possible, set the input buffer to the previous item in the | |
1068 | history. |
|
1088 | history. | |
1069 | """ |
|
1089 | """ | |
1070 | if self._history_index > 0: |
|
1090 | if self._history_index > 0: | |
1071 | self._history_index -= 1 |
|
1091 | self._history_index -= 1 | |
1072 | self.input_buffer = self._history[self._history_index] |
|
1092 | self.input_buffer = self._history[self._history_index] | |
1073 |
|
1093 | |||
1074 | def history_next(self): |
|
1094 | def history_next(self): | |
1075 | """ Set the input buffer to the next item in the history, or a blank |
|
1095 | """ Set the input buffer to the next item in the history, or a blank | |
1076 | line if there is no subsequent item. |
|
1096 | line if there is no subsequent item. | |
1077 | """ |
|
1097 | """ | |
1078 | if self._history_index < len(self._history): |
|
1098 | if self._history_index < len(self._history): | |
1079 | self._history_index += 1 |
|
1099 | self._history_index += 1 | |
1080 | if self._history_index < len(self._history): |
|
1100 | if self._history_index < len(self._history): | |
1081 | self.input_buffer = self._history[self._history_index] |
|
1101 | self.input_buffer = self._history[self._history_index] | |
1082 | else: |
|
1102 | else: | |
1083 | self.input_buffer = '' |
|
1103 | self.input_buffer = '' |
@@ -1,376 +1,376 b'' | |||||
1 | # Standard library imports |
|
1 | # Standard library imports | |
2 | import signal |
|
2 | import signal | |
3 | import sys |
|
3 | import sys | |
4 |
|
4 | |||
5 | # System library imports |
|
5 | # System library imports | |
6 | from pygments.lexers import PythonLexer |
|
6 | from pygments.lexers import PythonLexer | |
7 | from PyQt4 import QtCore, QtGui |
|
7 | from PyQt4 import QtCore, QtGui | |
8 | import zmq |
|
8 | import zmq | |
9 |
|
9 | |||
10 | # Local imports |
|
10 | # Local imports | |
11 | from IPython.core.inputsplitter import InputSplitter |
|
11 | from IPython.core.inputsplitter import InputSplitter | |
12 | from call_tip_widget import CallTipWidget |
|
12 | from call_tip_widget import CallTipWidget | |
13 | from completion_lexer import CompletionLexer |
|
13 | from completion_lexer import CompletionLexer | |
14 | from console_widget import HistoryConsoleWidget |
|
14 | from console_widget import HistoryConsoleWidget | |
15 | from pygments_highlighter import PygmentsHighlighter |
|
15 | from pygments_highlighter import PygmentsHighlighter | |
16 |
|
16 | |||
17 |
|
17 | |||
18 | class FrontendHighlighter(PygmentsHighlighter): |
|
18 | class FrontendHighlighter(PygmentsHighlighter): | |
19 | """ A PygmentsHighlighter that can be turned on and off and that ignores |
|
19 | """ A PygmentsHighlighter that can be turned on and off and that ignores | |
20 | prompts. |
|
20 | prompts. | |
21 | """ |
|
21 | """ | |
22 |
|
22 | |||
23 | def __init__(self, frontend): |
|
23 | def __init__(self, frontend): | |
24 | super(FrontendHighlighter, self).__init__(frontend._control.document()) |
|
24 | super(FrontendHighlighter, self).__init__(frontend._control.document()) | |
25 | self._current_offset = 0 |
|
25 | self._current_offset = 0 | |
26 | self._frontend = frontend |
|
26 | self._frontend = frontend | |
27 | self.highlighting_on = False |
|
27 | self.highlighting_on = False | |
28 |
|
28 | |||
29 | def highlightBlock(self, qstring): |
|
29 | def highlightBlock(self, qstring): | |
30 | """ Highlight a block of text. Reimplemented to highlight selectively. |
|
30 | """ Highlight a block of text. Reimplemented to highlight selectively. | |
31 | """ |
|
31 | """ | |
32 | if not self.highlighting_on: |
|
32 | if not self.highlighting_on: | |
33 | return |
|
33 | return | |
34 |
|
34 | |||
35 | # The input to this function is unicode string that may contain |
|
35 | # The input to this function is unicode string that may contain | |
36 | # paragraph break characters, non-breaking spaces, etc. Here we acquire |
|
36 | # paragraph break characters, non-breaking spaces, etc. Here we acquire | |
37 | # the string as plain text so we can compare it. |
|
37 | # the string as plain text so we can compare it. | |
38 | current_block = self.currentBlock() |
|
38 | current_block = self.currentBlock() | |
39 | string = self._frontend._get_block_plain_text(current_block) |
|
39 | string = self._frontend._get_block_plain_text(current_block) | |
40 |
|
40 | |||
41 | # Decide whether to check for the regular or continuation prompt. |
|
41 | # Decide whether to check for the regular or continuation prompt. | |
42 | if current_block.contains(self._frontend._prompt_pos): |
|
42 | if current_block.contains(self._frontend._prompt_pos): | |
43 | prompt = self._frontend._prompt |
|
43 | prompt = self._frontend._prompt | |
44 | else: |
|
44 | else: | |
45 | prompt = self._frontend._continuation_prompt |
|
45 | prompt = self._frontend._continuation_prompt | |
46 |
|
46 | |||
47 | # Don't highlight the part of the string that contains the prompt. |
|
47 | # Don't highlight the part of the string that contains the prompt. | |
48 | if string.startswith(prompt): |
|
48 | if string.startswith(prompt): | |
49 | self._current_offset = len(prompt) |
|
49 | self._current_offset = len(prompt) | |
50 | qstring.remove(0, len(prompt)) |
|
50 | qstring.remove(0, len(prompt)) | |
51 | else: |
|
51 | else: | |
52 | self._current_offset = 0 |
|
52 | self._current_offset = 0 | |
53 |
|
53 | |||
54 | PygmentsHighlighter.highlightBlock(self, qstring) |
|
54 | PygmentsHighlighter.highlightBlock(self, qstring) | |
55 |
|
55 | |||
56 | def setFormat(self, start, count, format): |
|
56 | def setFormat(self, start, count, format): | |
57 | """ Reimplemented to highlight selectively. |
|
57 | """ Reimplemented to highlight selectively. | |
58 | """ |
|
58 | """ | |
59 | start += self._current_offset |
|
59 | start += self._current_offset | |
60 | PygmentsHighlighter.setFormat(self, start, count, format) |
|
60 | PygmentsHighlighter.setFormat(self, start, count, format) | |
61 |
|
61 | |||
62 |
|
62 | |||
63 | class FrontendWidget(HistoryConsoleWidget): |
|
63 | class FrontendWidget(HistoryConsoleWidget): | |
64 | """ A Qt frontend for a generic Python kernel. |
|
64 | """ A Qt frontend for a generic Python kernel. | |
65 | """ |
|
65 | """ | |
66 |
|
66 | |||
67 | # Emitted when an 'execute_reply' is received from the kernel. |
|
67 | # Emitted when an 'execute_reply' is received from the kernel. | |
68 | executed = QtCore.pyqtSignal(object) |
|
68 | executed = QtCore.pyqtSignal(object) | |
69 |
|
69 | |||
70 | #--------------------------------------------------------------------------- |
|
70 | #--------------------------------------------------------------------------- | |
71 | # 'object' interface |
|
71 | # 'object' interface | |
72 | #--------------------------------------------------------------------------- |
|
72 | #--------------------------------------------------------------------------- | |
73 |
|
73 | |||
74 | def __init__(self, *args, **kw): |
|
74 | def __init__(self, *args, **kw): | |
75 | super(FrontendWidget, self).__init__(*args, **kw) |
|
75 | super(FrontendWidget, self).__init__(*args, **kw) | |
76 |
|
76 | |||
77 | # FrontendWidget protected variables. |
|
77 | # FrontendWidget protected variables. | |
78 | self._call_tip_widget = CallTipWidget(self._control) |
|
78 | self._call_tip_widget = CallTipWidget(self._control) | |
79 | self._completion_lexer = CompletionLexer(PythonLexer()) |
|
79 | self._completion_lexer = CompletionLexer(PythonLexer()) | |
80 | self._hidden = True |
|
80 | self._hidden = True | |
81 | self._highlighter = FrontendHighlighter(self) |
|
81 | self._highlighter = FrontendHighlighter(self) | |
82 | self._input_splitter = InputSplitter(input_mode='replace') |
|
82 | self._input_splitter = InputSplitter(input_mode='replace') | |
83 | self._kernel_manager = None |
|
83 | self._kernel_manager = None | |
84 |
|
84 | |||
85 | # Configure the ConsoleWidget. |
|
85 | # Configure the ConsoleWidget. | |
86 | self.tab_width = 4 |
|
86 | self.tab_width = 4 | |
87 | self._set_continuation_prompt('... ') |
|
87 | self._set_continuation_prompt('... ') | |
88 |
|
88 | |||
89 | # Connect signal handlers. |
|
89 | # Connect signal handlers. | |
90 | document = self._control.document() |
|
90 | document = self._control.document() | |
91 | document.contentsChange.connect(self._document_contents_change) |
|
91 | document.contentsChange.connect(self._document_contents_change) | |
92 |
|
92 | |||
93 | #--------------------------------------------------------------------------- |
|
93 | #--------------------------------------------------------------------------- | |
94 | # 'ConsoleWidget' abstract interface |
|
94 | # 'ConsoleWidget' abstract interface | |
95 | #--------------------------------------------------------------------------- |
|
95 | #--------------------------------------------------------------------------- | |
96 |
|
96 | |||
97 | def _is_complete(self, source, interactive): |
|
97 | def _is_complete(self, source, interactive): | |
98 | """ Returns whether 'source' can be completely processed and a new |
|
98 | """ Returns whether 'source' can be completely processed and a new | |
99 | prompt created. When triggered by an Enter/Return key press, |
|
99 | prompt created. When triggered by an Enter/Return key press, | |
100 | 'interactive' is True; otherwise, it is False. |
|
100 | 'interactive' is True; otherwise, it is False. | |
101 | """ |
|
101 | """ | |
102 | complete = self._input_splitter.push(source.expandtabs(4)) |
|
102 | complete = self._input_splitter.push(source.expandtabs(4)) | |
103 | if interactive: |
|
103 | if interactive: | |
104 | complete = not self._input_splitter.push_accepts_more() |
|
104 | complete = not self._input_splitter.push_accepts_more() | |
105 | return complete |
|
105 | return complete | |
106 |
|
106 | |||
107 | def _execute(self, source, hidden): |
|
107 | def _execute(self, source, hidden): | |
108 | """ Execute 'source'. If 'hidden', do not show any output. |
|
108 | """ Execute 'source'. If 'hidden', do not show any output. | |
109 | """ |
|
109 | """ | |
110 | self.kernel_manager.xreq_channel.execute(source) |
|
110 | self.kernel_manager.xreq_channel.execute(source) | |
111 | self._hidden = hidden |
|
111 | self._hidden = hidden | |
112 |
|
112 | |||
113 | def _execute_interrupt(self): |
|
113 | def _execute_interrupt(self): | |
114 | """ Attempts to stop execution. Returns whether this method has an |
|
114 | """ Attempts to stop execution. Returns whether this method has an | |
115 | implementation. |
|
115 | implementation. | |
116 | """ |
|
116 | """ | |
117 | self._interrupt_kernel() |
|
117 | self._interrupt_kernel() | |
118 | return True |
|
118 | return True | |
119 |
|
119 | |||
120 | def _prompt_started_hook(self): |
|
120 | def _prompt_started_hook(self): | |
121 | """ Called immediately after a new prompt is displayed. |
|
121 | """ Called immediately after a new prompt is displayed. | |
122 | """ |
|
122 | """ | |
123 | if not self._reading: |
|
123 | if not self._reading: | |
124 | self._highlighter.highlighting_on = True |
|
124 | self._highlighter.highlighting_on = True | |
125 |
|
125 | |||
126 | # Auto-indent if this is a continuation prompt. |
|
126 | # Auto-indent if this is a continuation prompt. | |
127 | if self._get_prompt_cursor().blockNumber() != \ |
|
127 | if self._get_prompt_cursor().blockNumber() != \ | |
128 | self._get_end_cursor().blockNumber(): |
|
128 | self._get_end_cursor().blockNumber(): | |
129 | spaces = self._input_splitter.indent_spaces |
|
129 | spaces = self._input_splitter.indent_spaces | |
130 | self._append_plain_text('\t' * (spaces / self.tab_width)) |
|
130 | self._append_plain_text('\t' * (spaces / self.tab_width)) | |
131 | self._append_plain_text(' ' * (spaces % self.tab_width)) |
|
131 | self._append_plain_text(' ' * (spaces % self.tab_width)) | |
132 |
|
132 | |||
133 | def _prompt_finished_hook(self): |
|
133 | def _prompt_finished_hook(self): | |
134 | """ Called immediately after a prompt is finished, i.e. when some input |
|
134 | """ Called immediately after a prompt is finished, i.e. when some input | |
135 | will be processed and a new prompt displayed. |
|
135 | will be processed and a new prompt displayed. | |
136 | """ |
|
136 | """ | |
137 | if not self._reading: |
|
137 | if not self._reading: | |
138 | self._highlighter.highlighting_on = False |
|
138 | self._highlighter.highlighting_on = False | |
139 |
|
139 | |||
140 | def _tab_pressed(self): |
|
140 | def _tab_pressed(self): | |
141 | """ Called when the tab key is pressed. Returns whether to continue |
|
141 | """ Called when the tab key is pressed. Returns whether to continue | |
142 | processing the event. |
|
142 | processing the event. | |
143 | """ |
|
143 | """ | |
144 | self._keep_cursor_in_buffer() |
|
144 | self._keep_cursor_in_buffer() | |
145 | cursor = self._get_cursor() |
|
145 | cursor = self._get_cursor() | |
146 | return not self._complete() |
|
146 | return not self._complete() | |
147 |
|
147 | |||
148 | #--------------------------------------------------------------------------- |
|
148 | #--------------------------------------------------------------------------- | |
149 | # 'FrontendWidget' interface |
|
149 | # 'FrontendWidget' interface | |
150 | #--------------------------------------------------------------------------- |
|
150 | #--------------------------------------------------------------------------- | |
151 |
|
151 | |||
152 | def execute_file(self, path, hidden=False): |
|
152 | def execute_file(self, path, hidden=False): | |
153 | """ Attempts to execute file with 'path'. If 'hidden', no output is |
|
153 | """ Attempts to execute file with 'path'. If 'hidden', no output is | |
154 | shown. |
|
154 | shown. | |
155 | """ |
|
155 | """ | |
156 | self.execute('execfile("%s")' % path, hidden=hidden) |
|
156 | self.execute('execfile("%s")' % path, hidden=hidden) | |
157 |
|
157 | |||
158 | def _get_kernel_manager(self): |
|
158 | def _get_kernel_manager(self): | |
159 | """ Returns the current kernel manager. |
|
159 | """ Returns the current kernel manager. | |
160 | """ |
|
160 | """ | |
161 | return self._kernel_manager |
|
161 | return self._kernel_manager | |
162 |
|
162 | |||
163 | def _set_kernel_manager(self, kernel_manager): |
|
163 | def _set_kernel_manager(self, kernel_manager): | |
164 | """ Disconnect from the current kernel manager (if any) and set a new |
|
164 | """ Disconnect from the current kernel manager (if any) and set a new | |
165 | kernel manager. |
|
165 | kernel manager. | |
166 | """ |
|
166 | """ | |
167 | # Disconnect the old kernel manager, if necessary. |
|
167 | # Disconnect the old kernel manager, if necessary. | |
168 | if self._kernel_manager is not None: |
|
168 | if self._kernel_manager is not None: | |
169 | self._kernel_manager.started_channels.disconnect( |
|
169 | self._kernel_manager.started_channels.disconnect( | |
170 | self._started_channels) |
|
170 | self._started_channels) | |
171 | self._kernel_manager.stopped_channels.disconnect( |
|
171 | self._kernel_manager.stopped_channels.disconnect( | |
172 | self._stopped_channels) |
|
172 | self._stopped_channels) | |
173 |
|
173 | |||
174 | # Disconnect the old kernel manager's channels. |
|
174 | # Disconnect the old kernel manager's channels. | |
175 | sub = self._kernel_manager.sub_channel |
|
175 | sub = self._kernel_manager.sub_channel | |
176 | xreq = self._kernel_manager.xreq_channel |
|
176 | xreq = self._kernel_manager.xreq_channel | |
177 | rep = self._kernel_manager.rep_channel |
|
177 | rep = self._kernel_manager.rep_channel | |
178 | sub.message_received.disconnect(self._handle_sub) |
|
178 | sub.message_received.disconnect(self._handle_sub) | |
179 | xreq.execute_reply.disconnect(self._handle_execute_reply) |
|
179 | xreq.execute_reply.disconnect(self._handle_execute_reply) | |
180 | xreq.complete_reply.disconnect(self._handle_complete_reply) |
|
180 | xreq.complete_reply.disconnect(self._handle_complete_reply) | |
181 | xreq.object_info_reply.disconnect(self._handle_object_info_reply) |
|
181 | xreq.object_info_reply.disconnect(self._handle_object_info_reply) | |
182 | rep.input_requested.disconnect(self._handle_req) |
|
182 | rep.input_requested.disconnect(self._handle_req) | |
183 |
|
183 | |||
184 | # Handle the case where the old kernel manager is still listening. |
|
184 | # Handle the case where the old kernel manager is still listening. | |
185 | if self._kernel_manager.channels_running: |
|
185 | if self._kernel_manager.channels_running: | |
186 | self._stopped_channels() |
|
186 | self._stopped_channels() | |
187 |
|
187 | |||
188 | # Set the new kernel manager. |
|
188 | # Set the new kernel manager. | |
189 | self._kernel_manager = kernel_manager |
|
189 | self._kernel_manager = kernel_manager | |
190 | if kernel_manager is None: |
|
190 | if kernel_manager is None: | |
191 | return |
|
191 | return | |
192 |
|
192 | |||
193 | # Connect the new kernel manager. |
|
193 | # Connect the new kernel manager. | |
194 | kernel_manager.started_channels.connect(self._started_channels) |
|
194 | kernel_manager.started_channels.connect(self._started_channels) | |
195 | kernel_manager.stopped_channels.connect(self._stopped_channels) |
|
195 | kernel_manager.stopped_channels.connect(self._stopped_channels) | |
196 |
|
196 | |||
197 | # Connect the new kernel manager's channels. |
|
197 | # Connect the new kernel manager's channels. | |
198 | sub = kernel_manager.sub_channel |
|
198 | sub = kernel_manager.sub_channel | |
199 | xreq = kernel_manager.xreq_channel |
|
199 | xreq = kernel_manager.xreq_channel | |
200 | rep = kernel_manager.rep_channel |
|
200 | rep = kernel_manager.rep_channel | |
201 | sub.message_received.connect(self._handle_sub) |
|
201 | sub.message_received.connect(self._handle_sub) | |
202 | xreq.execute_reply.connect(self._handle_execute_reply) |
|
202 | xreq.execute_reply.connect(self._handle_execute_reply) | |
203 | xreq.complete_reply.connect(self._handle_complete_reply) |
|
203 | xreq.complete_reply.connect(self._handle_complete_reply) | |
204 | xreq.object_info_reply.connect(self._handle_object_info_reply) |
|
204 | xreq.object_info_reply.connect(self._handle_object_info_reply) | |
205 | rep.input_requested.connect(self._handle_req) |
|
205 | rep.input_requested.connect(self._handle_req) | |
206 |
|
206 | |||
207 | # Handle the case where the kernel manager started channels before |
|
207 | # Handle the case where the kernel manager started channels before | |
208 | # we connected. |
|
208 | # we connected. | |
209 | if kernel_manager.channels_running: |
|
209 | if kernel_manager.channels_running: | |
210 | self._started_channels() |
|
210 | self._started_channels() | |
211 |
|
211 | |||
212 | kernel_manager = property(_get_kernel_manager, _set_kernel_manager) |
|
212 | kernel_manager = property(_get_kernel_manager, _set_kernel_manager) | |
213 |
|
213 | |||
214 | #--------------------------------------------------------------------------- |
|
214 | #--------------------------------------------------------------------------- | |
215 | # 'FrontendWidget' protected interface |
|
215 | # 'FrontendWidget' protected interface | |
216 | #--------------------------------------------------------------------------- |
|
216 | #--------------------------------------------------------------------------- | |
217 |
|
217 | |||
218 | def _call_tip(self): |
|
218 | def _call_tip(self): | |
219 | """ Shows a call tip, if appropriate, at the current cursor location. |
|
219 | """ Shows a call tip, if appropriate, at the current cursor location. | |
220 | """ |
|
220 | """ | |
221 | # Decide if it makes sense to show a call tip |
|
221 | # Decide if it makes sense to show a call tip | |
222 | cursor = self._get_cursor() |
|
222 | cursor = self._get_cursor() | |
223 | cursor.movePosition(QtGui.QTextCursor.Left) |
|
223 | cursor.movePosition(QtGui.QTextCursor.Left) | |
224 | document = self._control.document() |
|
224 | document = self._control.document() | |
225 | if document.characterAt(cursor.position()).toAscii() != '(': |
|
225 | if document.characterAt(cursor.position()).toAscii() != '(': | |
226 | return False |
|
226 | return False | |
227 | context = self._get_context(cursor) |
|
227 | context = self._get_context(cursor) | |
228 | if not context: |
|
228 | if not context: | |
229 | return False |
|
229 | return False | |
230 |
|
230 | |||
231 | # Send the metadata request to the kernel |
|
231 | # Send the metadata request to the kernel | |
232 | name = '.'.join(context) |
|
232 | name = '.'.join(context) | |
233 | self._call_tip_id = self.kernel_manager.xreq_channel.object_info(name) |
|
233 | self._call_tip_id = self.kernel_manager.xreq_channel.object_info(name) | |
234 | self._call_tip_pos = self._get_cursor().position() |
|
234 | self._call_tip_pos = self._get_cursor().position() | |
235 | return True |
|
235 | return True | |
236 |
|
236 | |||
237 | def _complete(self): |
|
237 | def _complete(self): | |
238 | """ Performs completion at the current cursor location. |
|
238 | """ Performs completion at the current cursor location. | |
239 | """ |
|
239 | """ | |
240 | # Decide if it makes sense to do completion |
|
240 | # Decide if it makes sense to do completion | |
241 | context = self._get_context() |
|
241 | context = self._get_context() | |
242 | if not context: |
|
242 | if not context: | |
243 | return False |
|
243 | return False | |
244 |
|
244 | |||
245 | # Send the completion request to the kernel |
|
245 | # Send the completion request to the kernel | |
246 | text = '.'.join(context) |
|
246 | text = '.'.join(context) | |
247 | self._complete_id = self.kernel_manager.xreq_channel.complete( |
|
247 | self._complete_id = self.kernel_manager.xreq_channel.complete( | |
248 | text, self._get_input_buffer_cursor_line(), self.input_buffer) |
|
248 | text, self._get_input_buffer_cursor_line(), self.input_buffer) | |
249 | self._complete_pos = self._get_cursor().position() |
|
249 | self._complete_pos = self._get_cursor().position() | |
250 | return True |
|
250 | return True | |
251 |
|
251 | |||
252 | def _get_banner(self): |
|
252 | def _get_banner(self): | |
253 | """ Gets a banner to display at the beginning of a session. |
|
253 | """ Gets a banner to display at the beginning of a session. | |
254 | """ |
|
254 | """ | |
255 | banner = 'Python %s on %s\nType "help", "copyright", "credits" or ' \ |
|
255 | banner = 'Python %s on %s\nType "help", "copyright", "credits" or ' \ | |
256 | '"license" for more information.' |
|
256 | '"license" for more information.' | |
257 | return banner % (sys.version, sys.platform) |
|
257 | return banner % (sys.version, sys.platform) | |
258 |
|
258 | |||
259 | def _get_context(self, cursor=None): |
|
259 | def _get_context(self, cursor=None): | |
260 | """ Gets the context at the current cursor location. |
|
260 | """ Gets the context at the current cursor location. | |
261 | """ |
|
261 | """ | |
262 | if cursor is None: |
|
262 | if cursor is None: | |
263 | cursor = self._get_cursor() |
|
263 | cursor = self._get_cursor() | |
264 |
cursor.movePosition(QtGui.QTextCursor.StartOf |
|
264 | cursor.movePosition(QtGui.QTextCursor.StartOfBlock, | |
265 | QtGui.QTextCursor.KeepAnchor) |
|
265 | QtGui.QTextCursor.KeepAnchor) | |
266 | text = str(cursor.selection().toPlainText()) |
|
266 | text = str(cursor.selection().toPlainText()) | |
267 | return self._completion_lexer.get_context(text) |
|
267 | return self._completion_lexer.get_context(text) | |
268 |
|
268 | |||
269 | def _interrupt_kernel(self): |
|
269 | def _interrupt_kernel(self): | |
270 | """ Attempts to the interrupt the kernel. |
|
270 | """ Attempts to the interrupt the kernel. | |
271 | """ |
|
271 | """ | |
272 | if self.kernel_manager.has_kernel: |
|
272 | if self.kernel_manager.has_kernel: | |
273 | self.kernel_manager.signal_kernel(signal.SIGINT) |
|
273 | self.kernel_manager.signal_kernel(signal.SIGINT) | |
274 | else: |
|
274 | else: | |
275 | self._append_plain_text('Kernel process is either remote or ' |
|
275 | self._append_plain_text('Kernel process is either remote or ' | |
276 | 'unspecified. Cannot interrupt.\n') |
|
276 | 'unspecified. Cannot interrupt.\n') | |
277 |
|
277 | |||
278 | def _show_interpreter_prompt(self): |
|
278 | def _show_interpreter_prompt(self): | |
279 | """ Shows a prompt for the interpreter. |
|
279 | """ Shows a prompt for the interpreter. | |
280 | """ |
|
280 | """ | |
281 | self._show_prompt('>>> ') |
|
281 | self._show_prompt('>>> ') | |
282 |
|
282 | |||
283 | #------ Signal handlers ---------------------------------------------------- |
|
283 | #------ Signal handlers ---------------------------------------------------- | |
284 |
|
284 | |||
285 | def _started_channels(self): |
|
285 | def _started_channels(self): | |
286 | """ Called when the kernel manager has started listening. |
|
286 | """ Called when the kernel manager has started listening. | |
287 | """ |
|
287 | """ | |
288 | self._reset() |
|
288 | self._reset() | |
289 | self._append_plain_text(self._get_banner()) |
|
289 | self._append_plain_text(self._get_banner()) | |
290 | self._show_interpreter_prompt() |
|
290 | self._show_interpreter_prompt() | |
291 |
|
291 | |||
292 | def _stopped_channels(self): |
|
292 | def _stopped_channels(self): | |
293 | """ Called when the kernel manager has stopped listening. |
|
293 | """ Called when the kernel manager has stopped listening. | |
294 | """ |
|
294 | """ | |
295 | # FIXME: Print a message here? |
|
295 | # FIXME: Print a message here? | |
296 | pass |
|
296 | pass | |
297 |
|
297 | |||
298 | def _document_contents_change(self, position, removed, added): |
|
298 | def _document_contents_change(self, position, removed, added): | |
299 | """ Called whenever the document's content changes. Display a call tip |
|
299 | """ Called whenever the document's content changes. Display a call tip | |
300 | if appropriate. |
|
300 | if appropriate. | |
301 | """ |
|
301 | """ | |
302 | # Calculate where the cursor should be *after* the change: |
|
302 | # Calculate where the cursor should be *after* the change: | |
303 | position += added |
|
303 | position += added | |
304 |
|
304 | |||
305 | document = self._control.document() |
|
305 | document = self._control.document() | |
306 | if position == self._get_cursor().position(): |
|
306 | if position == self._get_cursor().position(): | |
307 | self._call_tip() |
|
307 | self._call_tip() | |
308 |
|
308 | |||
309 | def _handle_req(self, req): |
|
309 | def _handle_req(self, req): | |
310 | # Make sure that all output from the SUB channel has been processed |
|
310 | # Make sure that all output from the SUB channel has been processed | |
311 | # before entering readline mode. |
|
311 | # before entering readline mode. | |
312 | self.kernel_manager.sub_channel.flush() |
|
312 | self.kernel_manager.sub_channel.flush() | |
313 |
|
313 | |||
314 | def callback(line): |
|
314 | def callback(line): | |
315 | self.kernel_manager.rep_channel.input(line) |
|
315 | self.kernel_manager.rep_channel.input(line) | |
316 | self._readline(req['content']['prompt'], callback=callback) |
|
316 | self._readline(req['content']['prompt'], callback=callback) | |
317 |
|
317 | |||
318 | def _handle_sub(self, omsg): |
|
318 | def _handle_sub(self, omsg): | |
319 | if self._hidden: |
|
319 | if self._hidden: | |
320 | return |
|
320 | return | |
321 | handler = getattr(self, '_handle_%s' % omsg['msg_type'], None) |
|
321 | handler = getattr(self, '_handle_%s' % omsg['msg_type'], None) | |
322 | if handler is not None: |
|
322 | if handler is not None: | |
323 | handler(omsg) |
|
323 | handler(omsg) | |
324 |
|
324 | |||
325 | def _handle_pyout(self, omsg): |
|
325 | def _handle_pyout(self, omsg): | |
326 | self._append_plain_text(omsg['content']['data'] + '\n') |
|
326 | self._append_plain_text(omsg['content']['data'] + '\n') | |
327 |
|
327 | |||
328 | def _handle_stream(self, omsg): |
|
328 | def _handle_stream(self, omsg): | |
329 | self._append_plain_text(omsg['content']['data']) |
|
329 | self._append_plain_text(omsg['content']['data']) | |
330 | self._control.moveCursor(QtGui.QTextCursor.End) |
|
330 | self._control.moveCursor(QtGui.QTextCursor.End) | |
331 |
|
331 | |||
332 | def _handle_execute_reply(self, reply): |
|
332 | def _handle_execute_reply(self, reply): | |
333 | if self._hidden: |
|
333 | if self._hidden: | |
334 | return |
|
334 | return | |
335 |
|
335 | |||
336 | # Make sure that all output from the SUB channel has been processed |
|
336 | # Make sure that all output from the SUB channel has been processed | |
337 | # before writing a new prompt. |
|
337 | # before writing a new prompt. | |
338 | self.kernel_manager.sub_channel.flush() |
|
338 | self.kernel_manager.sub_channel.flush() | |
339 |
|
339 | |||
340 | content = reply['content'] |
|
340 | content = reply['content'] | |
341 | status = content['status'] |
|
341 | status = content['status'] | |
342 | if status == 'ok': |
|
342 | if status == 'ok': | |
343 | self._handle_execute_payload(content['payload']) |
|
343 | self._handle_execute_payload(content['payload']) | |
344 | elif status == 'error': |
|
344 | elif status == 'error': | |
345 | self._handle_execute_error(reply) |
|
345 | self._handle_execute_error(reply) | |
346 | elif status == 'aborted': |
|
346 | elif status == 'aborted': | |
347 | text = "ERROR: ABORTED\n" |
|
347 | text = "ERROR: ABORTED\n" | |
348 | self._append_plain_text(text) |
|
348 | self._append_plain_text(text) | |
349 |
|
349 | |||
350 | self._hidden = True |
|
350 | self._hidden = True | |
351 | self._show_interpreter_prompt() |
|
351 | self._show_interpreter_prompt() | |
352 | self.executed.emit(reply) |
|
352 | self.executed.emit(reply) | |
353 |
|
353 | |||
354 | def _handle_execute_error(self, reply): |
|
354 | def _handle_execute_error(self, reply): | |
355 | content = reply['content'] |
|
355 | content = reply['content'] | |
356 | traceback = ''.join(content['traceback']) |
|
356 | traceback = ''.join(content['traceback']) | |
357 | self._append_plain_text(traceback) |
|
357 | self._append_plain_text(traceback) | |
358 |
|
358 | |||
359 | def _handle_execute_payload(self, payload): |
|
359 | def _handle_execute_payload(self, payload): | |
360 | pass |
|
360 | pass | |
361 |
|
361 | |||
362 | def _handle_complete_reply(self, rep): |
|
362 | def _handle_complete_reply(self, rep): | |
363 | cursor = self._get_cursor() |
|
363 | cursor = self._get_cursor() | |
364 | if rep['parent_header']['msg_id'] == self._complete_id and \ |
|
364 | if rep['parent_header']['msg_id'] == self._complete_id and \ | |
365 | cursor.position() == self._complete_pos: |
|
365 | cursor.position() == self._complete_pos: | |
366 | text = '.'.join(self._get_context()) |
|
366 | text = '.'.join(self._get_context()) | |
367 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(text)) |
|
367 | cursor.movePosition(QtGui.QTextCursor.Left, n=len(text)) | |
368 | self._complete_with_items(cursor, rep['content']['matches']) |
|
368 | self._complete_with_items(cursor, rep['content']['matches']) | |
369 |
|
369 | |||
370 | def _handle_object_info_reply(self, rep): |
|
370 | def _handle_object_info_reply(self, rep): | |
371 | cursor = self._get_cursor() |
|
371 | cursor = self._get_cursor() | |
372 | if rep['parent_header']['msg_id'] == self._call_tip_id and \ |
|
372 | if rep['parent_header']['msg_id'] == self._call_tip_id and \ | |
373 | cursor.position() == self._call_tip_pos: |
|
373 | cursor.position() == self._call_tip_pos: | |
374 | doc = rep['content']['docstring'] |
|
374 | doc = rep['content']['docstring'] | |
375 | if doc: |
|
375 | if doc: | |
376 | self._call_tip_widget.show_docstring(doc) |
|
376 | self._call_tip_widget.show_docstring(doc) |
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