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@@ -1,339 +1,345 b'' | |||
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1 | 1 | #!/usr/bin/env python |
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2 | 2 | # coding: utf-8 |
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3 | 3 | """ |
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4 | 4 | Inputhook management for GUI event loop integration. |
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5 | 5 | """ |
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6 | 6 | |
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7 | 7 | #----------------------------------------------------------------------------- |
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8 | 8 | # Copyright (C) 2008-2009 The IPython Development Team |
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9 | 9 | # |
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10 | 10 | # Distributed under the terms of the BSD License. The full license is in |
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11 | 11 | # the file COPYING, distributed as part of this software. |
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12 | 12 | #----------------------------------------------------------------------------- |
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13 | 13 | |
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14 | 14 | #----------------------------------------------------------------------------- |
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15 | 15 | # Imports |
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16 | 16 | #----------------------------------------------------------------------------- |
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17 | 17 | |
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18 | 18 | import ctypes |
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19 | 19 | import sys |
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20 | 20 | import warnings |
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21 | 21 | |
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22 | 22 | #----------------------------------------------------------------------------- |
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23 | 23 | # Constants |
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24 | 24 | #----------------------------------------------------------------------------- |
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25 | 25 | |
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26 | 26 | # Constants for identifying the GUI toolkits. |
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27 | 27 | GUI_WX = 'wx' |
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28 | 28 | GUI_QT = 'qt' |
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29 | 29 | GUI_QT4 = 'qt4' |
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30 | 30 | GUI_GTK = 'gtk' |
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31 | 31 | GUI_TK = 'tk' |
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32 | 32 | GUI_OSX = 'osx' |
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33 | 33 | |
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34 | 34 | #----------------------------------------------------------------------------- |
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35 | 35 | # Utility classes |
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36 | 36 | #----------------------------------------------------------------------------- |
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37 | 37 | |
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38 | 38 | |
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39 | 39 | #----------------------------------------------------------------------------- |
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40 | 40 | # Main InputHookManager class |
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41 | 41 | #----------------------------------------------------------------------------- |
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42 | 42 | |
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43 | 43 | |
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44 | 44 | class InputHookManager(object): |
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45 | 45 | """Manage PyOS_InputHook for different GUI toolkits. |
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46 | 46 | |
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47 | 47 | This class installs various hooks under ``PyOSInputHook`` to handle |
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48 | 48 | GUI event loop integration. |
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49 | 49 | """ |
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50 | 50 | |
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51 | 51 | def __init__(self): |
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52 | 52 | self.PYFUNC = ctypes.PYFUNCTYPE(ctypes.c_int) |
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53 | 53 | self._apps = {} |
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54 | 54 | self._reset() |
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55 | 55 | |
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56 | 56 | def _reset(self): |
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57 | 57 | self._callback_pyfunctype = None |
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58 | 58 | self._callback = None |
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59 | 59 | self._installed = False |
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60 | 60 | self._current_gui = None |
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61 | 61 | |
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62 | 62 | def get_pyos_inputhook(self): |
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63 | 63 | """Return the current PyOS_InputHook as a ctypes.c_void_p.""" |
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64 | 64 | return ctypes.c_void_p.in_dll(ctypes.pythonapi,"PyOS_InputHook") |
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65 | 65 | |
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66 | 66 | def get_pyos_inputhook_as_func(self): |
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67 | 67 | """Return the current PyOS_InputHook as a ctypes.PYFUNCYPE.""" |
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68 | 68 | return self.PYFUNC.in_dll(ctypes.pythonapi,"PyOS_InputHook") |
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69 | 69 | |
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70 | 70 | def set_inputhook(self, callback): |
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71 | 71 | """Set PyOS_InputHook to callback and return the previous one.""" |
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72 | 72 | self._callback = callback |
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73 | 73 | self._callback_pyfunctype = self.PYFUNC(callback) |
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74 | 74 | pyos_inputhook_ptr = self.get_pyos_inputhook() |
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75 | 75 | original = self.get_pyos_inputhook_as_func() |
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76 | 76 | pyos_inputhook_ptr.value = \ |
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77 | 77 | ctypes.cast(self._callback_pyfunctype, ctypes.c_void_p).value |
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78 | 78 | self._installed = True |
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79 | 79 | return original |
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80 | 80 | |
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81 | 81 | def clear_inputhook(self, app=None): |
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82 | 82 | """Set PyOS_InputHook to NULL and return the previous one. |
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83 | 83 | |
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84 | 84 | Parameters |
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85 | 85 | ---------- |
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86 | 86 | app : optional, ignored |
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87 | 87 | This parameter is allowed only so that clear_inputhook() can be |
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88 | 88 | called with a similar interface as all the ``enable_*`` methods. But |
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89 | 89 | the actual value of the parameter is ignored. This uniform interface |
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90 | 90 | makes it easier to have user-level entry points in the main IPython |
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91 | 91 | app like :meth:`enable_gui`.""" |
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92 | 92 | pyos_inputhook_ptr = self.get_pyos_inputhook() |
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93 | 93 | original = self.get_pyos_inputhook_as_func() |
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94 | 94 | pyos_inputhook_ptr.value = ctypes.c_void_p(None).value |
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95 | 95 | self._reset() |
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96 | 96 | return original |
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97 | 97 | |
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98 | 98 | def clear_app_refs(self, gui=None): |
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99 | 99 | """Clear IPython's internal reference to an application instance. |
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100 | 100 | |
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101 | 101 | Whenever we create an app for a user on qt4 or wx, we hold a |
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102 | 102 | reference to the app. This is needed because in some cases bad things |
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103 | 103 | can happen if a user doesn't hold a reference themselves. This |
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104 | 104 | method is provided to clear the references we are holding. |
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105 | 105 | |
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106 | 106 | Parameters |
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107 | 107 | ---------- |
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108 | 108 | gui : None or str |
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109 | 109 | If None, clear all app references. If ('wx', 'qt4') clear |
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110 | 110 | the app for that toolkit. References are not held for gtk or tk |
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111 | 111 | as those toolkits don't have the notion of an app. |
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112 | 112 | """ |
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113 | 113 | if gui is None: |
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114 | 114 | self._apps = {} |
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115 | 115 | elif self._apps.has_key(gui): |
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116 | 116 | del self._apps[gui] |
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117 | 117 | |
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118 | def enable_wx(self): | |
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118 | def enable_wx(self, app=None): | |
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119 | 119 | """Enable event loop integration with wxPython. |
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120 | 120 | |
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121 | 121 | Parameters |
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122 | 122 | ---------- |
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123 | app : bool | |
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124 | Create a running application object or not. | |
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123 | app : WX Application, optional. | |
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124 | Running application to use. If not given, we probe WX for an | |
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125 | existing application object, and create a new one if none is found. | |
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125 | 126 | |
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126 | 127 | Notes |
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127 | 128 | ----- |
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128 | 129 | This methods sets the ``PyOS_InputHook`` for wxPython, which allows |
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129 | 130 | the wxPython to integrate with terminal based applications like |
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130 | 131 | IPython. |
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131 | 132 | |
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132 | If ``app`` is True, we create an :class:`wx.App` as follows:: | |
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133 | If ``app`` is not given we probe for an existing one, and return it if | |
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134 | found. If no existing app is found, we create an :class:`wx.App` as | |
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135 | follows:: | |
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133 | 136 | |
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134 | 137 | import wx |
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135 | 138 | app = wx.App(redirect=False, clearSigInt=False) |
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136 | ||
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137 | Both options this constructor are important for things to work | |
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138 | properly in an interactive context. | |
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139 | ||
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140 | But, we first check to see if an application has already been | |
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141 | created. If so, we simply return that instance. | |
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142 | 139 | """ |
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143 | 140 | from IPython.lib.inputhookwx import inputhook_wx |
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144 | 141 | self.set_inputhook(inputhook_wx) |
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145 | 142 | self._current_gui = GUI_WX |
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146 | 143 | import wx |
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147 | app = wx.GetApp() | |
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144 | if app is None: | |
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145 | app = wx.GetApp() | |
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148 | 146 | if app is None: |
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149 | 147 | app = wx.App(redirect=False, clearSigInt=False) |
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150 | 148 | app._in_event_loop = True |
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151 | 149 | self._apps[GUI_WX] = app |
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152 | 150 | return app |
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153 | 151 | |
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154 | 152 | def disable_wx(self): |
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155 | 153 | """Disable event loop integration with wxPython. |
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156 | 154 | |
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157 | 155 | This merely sets PyOS_InputHook to NULL. |
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158 | 156 | """ |
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159 | 157 | if self._apps.has_key(GUI_WX): |
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160 | 158 | self._apps[GUI_WX]._in_event_loop = False |
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161 | 159 | self.clear_inputhook() |
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162 | 160 | |
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163 | def enable_qt4(self): | |
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161 | def enable_qt4(self, app=None): | |
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164 | 162 | """Enable event loop integration with PyQt4. |
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165 | 163 | |
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166 | 164 | Parameters |
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167 | 165 | ---------- |
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168 | app : bool | |
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169 | Create a running application object or not. | |
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166 | app : Qt Application, optional. | |
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167 | Running application to use. If not given, we probe Qt for an | |
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168 | existing application object, and create a new one if none is found. | |
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170 | 169 | |
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171 | 170 | Notes |
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172 | 171 | ----- |
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173 | 172 | This methods sets the PyOS_InputHook for PyQt4, which allows |
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174 | 173 | the PyQt4 to integrate with terminal based applications like |
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175 | 174 | IPython. |
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176 | 175 | |
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177 | If ``app`` is True, we create an :class:`QApplication` as follows:: | |
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176 | If ``app`` is not given we probe for an existing one, and return it if | |
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177 | found. If no existing app is found, we create an :class:`QApplication` | |
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178 | as follows:: | |
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178 | 179 | |
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179 | 180 | from PyQt4 import QtCore |
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180 | 181 | app = QtGui.QApplication(sys.argv) |
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181 | ||
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182 | But, we first check to see if an application has already been | |
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183 | created. If so, we simply return that instance. | |
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184 | 182 | """ |
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185 | 183 | from IPython.external.qt_for_kernel import QtCore, QtGui |
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186 | 184 | |
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187 | 185 | if 'pyreadline' in sys.modules: |
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188 | 186 | # see IPython GitHub Issue #281 for more info on this issue |
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189 | 187 | # Similar intermittent behavior has been reported on OSX, |
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190 | 188 | # but not consistently reproducible |
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191 | 189 | warnings.warn("""PyReadline's inputhook can conflict with Qt, causing delays |
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192 | 190 | in interactive input. If you do see this issue, we recommend using another GUI |
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193 | 191 | toolkit if you can, or disable readline with the configuration option |
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194 | 192 | 'TerminalInteractiveShell.readline_use=False', specified in a config file or |
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195 | 193 | at the command-line""", |
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196 | 194 | RuntimeWarning) |
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197 | 195 | |
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198 | 196 | # PyQt4 has had this since 4.3.1. In version 4.2, PyOS_InputHook |
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199 | 197 | # was set when QtCore was imported, but if it ever got removed, |
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200 | 198 | # you couldn't reset it. For earlier versions we can |
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201 | 199 | # probably implement a ctypes version. |
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202 | 200 | try: |
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203 | 201 | QtCore.pyqtRestoreInputHook() |
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204 | 202 | except AttributeError: |
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205 | 203 | pass |
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206 | 204 | |
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207 | 205 | self._current_gui = GUI_QT4 |
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208 | app = QtCore.QCoreApplication.instance() | |
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206 | if app is None: | |
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207 | app = QtCore.QCoreApplication.instance() | |
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209 | 208 | if app is None: |
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210 | 209 | app = QtGui.QApplication([" "]) |
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211 | 210 | app._in_event_loop = True |
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212 | 211 | self._apps[GUI_QT4] = app |
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213 | 212 | return app |
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214 | 213 | |
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215 | 214 | def disable_qt4(self): |
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216 | 215 | """Disable event loop integration with PyQt4. |
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217 | 216 | |
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218 | 217 | This merely sets PyOS_InputHook to NULL. |
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219 | 218 | """ |
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220 | 219 | if self._apps.has_key(GUI_QT4): |
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221 | 220 | self._apps[GUI_QT4]._in_event_loop = False |
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222 | 221 | self.clear_inputhook() |
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223 | 222 | |
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224 |
def enable_gtk(self, app= |
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223 | def enable_gtk(self, app=None): | |
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225 | 224 | """Enable event loop integration with PyGTK. |
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226 | 225 | |
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227 | 226 | Parameters |
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228 | 227 | ---------- |
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229 |
app : |
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230 | Create a running application object or not. Because gtk does't | |
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231 | have an app class, this does nothing. | |
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228 | app : ignored | |
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229 | Ignored, it's only a placeholder to keep the call signature of all | |
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230 | gui activation methods consistent, which simplifies the logic of | |
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231 | supporting magics. | |
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232 | 232 | |
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233 | 233 | Notes |
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234 | 234 | ----- |
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235 | 235 | This methods sets the PyOS_InputHook for PyGTK, which allows |
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236 | 236 | the PyGTK to integrate with terminal based applications like |
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237 | 237 | IPython. |
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238 | 238 | """ |
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239 | 239 | import gtk |
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240 | 240 | try: |
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241 | 241 | gtk.set_interactive(True) |
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242 | 242 | self._current_gui = GUI_GTK |
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243 | 243 | except AttributeError: |
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244 | 244 | # For older versions of gtk, use our own ctypes version |
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245 | 245 | from IPython.lib.inputhookgtk import inputhook_gtk |
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246 | 246 | self.set_inputhook(inputhook_gtk) |
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247 | 247 | self._current_gui = GUI_GTK |
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248 | 248 | |
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249 | 249 | def disable_gtk(self): |
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250 | 250 | """Disable event loop integration with PyGTK. |
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251 | 251 | |
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252 | 252 | This merely sets PyOS_InputHook to NULL. |
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253 | 253 | """ |
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254 | 254 | self.clear_inputhook() |
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255 | 255 | |
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256 |
def enable_tk(self, app= |
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256 | def enable_tk(self, app=None): | |
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257 | 257 | """Enable event loop integration with Tk. |
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258 | 258 | |
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259 | 259 | Parameters |
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260 | 260 | ---------- |
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261 | app : bool | |
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262 | Create a running application object or not. | |
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261 | app : toplevel :class:`Tkinter.Tk` widget, optional. | |
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262 | Running application to use. If not given, we probe Qt for an | |
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263 | existing application object, and create a new one if none is found. | |
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263 | 264 | |
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264 | 265 | Notes |
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265 | 266 | ----- |
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266 |
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267 | If you have already created a :class:`Tkinter.Tk` object, the only | |
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268 | thing done by this method is to register with the | |
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269 | :class:`InputHookManager`, since creating that object automatically | |
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267 | 270 | sets ``PyOS_InputHook``. |
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268 | 271 | """ |
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269 | 272 | self._current_gui = GUI_TK |
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270 | if app: | |
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273 | if app is None: | |
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271 | 274 | import Tkinter |
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272 | 275 | app = Tkinter.Tk() |
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273 | 276 | app.withdraw() |
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274 | 277 | self._apps[GUI_TK] = app |
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275 | 278 | return app |
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276 | 279 | |
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277 | 280 | def disable_tk(self): |
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278 | 281 | """Disable event loop integration with Tkinter. |
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279 | 282 | |
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280 | 283 | This merely sets PyOS_InputHook to NULL. |
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281 | 284 | """ |
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282 | 285 | self.clear_inputhook() |
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283 | 286 | |
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284 | 287 | def current_gui(self): |
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285 | 288 | """Return a string indicating the currently active GUI or None.""" |
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286 | 289 | return self._current_gui |
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287 | 290 | |
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288 | 291 | inputhook_manager = InputHookManager() |
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289 | 292 | |
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290 | 293 | enable_wx = inputhook_manager.enable_wx |
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291 | 294 | disable_wx = inputhook_manager.disable_wx |
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292 | 295 | enable_qt4 = inputhook_manager.enable_qt4 |
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293 | 296 | disable_qt4 = inputhook_manager.disable_qt4 |
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294 | 297 | enable_gtk = inputhook_manager.enable_gtk |
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295 | 298 | disable_gtk = inputhook_manager.disable_gtk |
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296 | 299 | enable_tk = inputhook_manager.enable_tk |
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297 | 300 | disable_tk = inputhook_manager.disable_tk |
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298 | 301 | clear_inputhook = inputhook_manager.clear_inputhook |
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299 | 302 | set_inputhook = inputhook_manager.set_inputhook |
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300 | 303 | current_gui = inputhook_manager.current_gui |
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301 | 304 | clear_app_refs = inputhook_manager.clear_app_refs |
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302 | 305 | |
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303 | 306 | |
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304 | 307 | # Convenience function to switch amongst them |
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305 | def enable_gui(gui=None): | |
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308 | def enable_gui(gui=None, app=None): | |
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306 | 309 | """Switch amongst GUI input hooks by name. |
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307 | 310 | |
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308 | 311 | This is just a utility wrapper around the methods of the InputHookManager |
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309 | 312 | object. |
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310 | 313 | |
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311 | 314 | Parameters |
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312 | 315 | ---------- |
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313 | 316 | gui : optional, string or None |
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314 | 317 | If None, clears input hook, otherwise it must be one of the recognized |
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315 | 318 | GUI names (see ``GUI_*`` constants in module). |
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316 | 319 | |
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317 | app : optional, bool | |
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318 | If true, create an app object and return it. | |
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320 | app : optional, existing application object. | |
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321 | For toolkits that have the concept of a global app, you can supply an | |
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322 | existing one. If not given, the toolkit will be probed for one, and if | |
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323 | none is found, a new one will be created. Note that GTK does not have | |
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324 | this concept, and passing an app if `gui`=="GTK" will raise an error. | |
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319 | 325 | |
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320 | 326 | Returns |
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321 | 327 | ------- |
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322 | 328 | The output of the underlying gui switch routine, typically the actual |
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323 | 329 | PyOS_InputHook wrapper object or the GUI toolkit app created, if there was |
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324 | 330 | one. |
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325 | 331 | """ |
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326 | 332 | guis = {None: clear_inputhook, |
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327 | 333 | GUI_OSX: lambda app=False: None, |
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328 | 334 | GUI_TK: enable_tk, |
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329 | 335 | GUI_GTK: enable_gtk, |
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330 | 336 | GUI_WX: enable_wx, |
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331 | 337 | GUI_QT: enable_qt4, # qt3 not supported |
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332 | 338 | GUI_QT4: enable_qt4 } |
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333 | 339 | try: |
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334 | 340 | gui_hook = guis[gui] |
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335 | 341 | except KeyError: |
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336 | e="Invalid GUI request %r, valid ones are:%s" % (gui, guis.keys()) | |
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342 | e = "Invalid GUI request %r, valid ones are:%s" % (gui, guis.keys()) | |
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337 | 343 | raise ValueError(e) |
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338 | return gui_hook() | |
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344 | return gui_hook(app) | |
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339 | 345 |
@@ -1,43 +1,40 b'' | |||
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1 | 1 | #!/usr/bin/env python |
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2 | 2 | """Simple GTK example to manually test event loop integration. |
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3 | 3 | |
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4 | 4 | This is meant to run tests manually in ipython as: |
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5 | 5 | |
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6 | 6 | In [5]: %gui gtk |
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7 | 7 | |
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8 | 8 | In [6]: %run gui-gtk.py |
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9 | 9 | """ |
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10 | 10 | |
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11 | 11 | |
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12 | 12 | import pygtk |
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13 | 13 | pygtk.require('2.0') |
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14 | 14 | import gtk |
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15 | 15 | |
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16 | 16 | |
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17 | 17 | def hello_world(wigdet, data=None): |
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18 | 18 | print "Hello World" |
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19 | 19 | |
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20 | 20 | def delete_event(widget, event, data=None): |
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21 | 21 | return False |
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22 | 22 | |
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23 | 23 | def destroy(widget, data=None): |
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24 | 24 | gtk.main_quit() |
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25 | 25 | |
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26 | 26 | window = gtk.Window(gtk.WINDOW_TOPLEVEL) |
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27 | 27 | window.connect("delete_event", delete_event) |
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28 | 28 | window.connect("destroy", destroy) |
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29 | 29 | button = gtk.Button("Hello World") |
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30 | 30 | button.connect("clicked", hello_world, None) |
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31 | 31 | |
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32 | 32 | window.add(button) |
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33 | 33 | button.show() |
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34 | 34 | window.show() |
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35 | 35 | |
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36 | 36 | try: |
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37 | 37 | from IPython.lib.inputhook import enable_gtk |
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38 | 38 | enable_gtk() |
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39 | 39 | except ImportError: |
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40 | 40 | gtk.main() |
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41 | ||
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42 | ||
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43 |
@@ -1,41 +1,49 b'' | |||
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1 | 1 | #!/usr/bin/env python |
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2 | 2 | """Simple Qt4 example to manually test event loop integration. |
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3 | 3 | |
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4 | 4 | This is meant to run tests manually in ipython as: |
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5 | 5 | |
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6 | 6 | In [5]: %gui qt |
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7 | 7 | |
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8 | 8 | In [6]: %run gui-qt.py |
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9 | 9 | |
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10 | 10 | Ref: Modified from http://zetcode.com/tutorials/pyqt4/firstprograms/ |
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11 | 11 | """ |
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12 | 12 | |
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13 | 13 | import sys |
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14 | 14 | from PyQt4 import QtGui, QtCore |
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15 | 15 | |
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16 | 16 | class SimpleWindow(QtGui.QWidget): |
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17 | 17 | def __init__(self, parent=None): |
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18 | 18 | QtGui.QWidget.__init__(self, parent) |
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19 | 19 | |
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20 | 20 | self.setGeometry(300, 300, 200, 80) |
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21 | 21 | self.setWindowTitle('Hello World') |
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22 | 22 | |
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23 | 23 | quit = QtGui.QPushButton('Close', self) |
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24 | 24 | quit.setGeometry(10, 10, 60, 35) |
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25 | 25 | |
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26 | 26 | self.connect(quit, QtCore.SIGNAL('clicked()'), |
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27 | 27 | self, QtCore.SLOT('close()')) |
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28 | 28 | |
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29 | 29 | if __name__ == '__main__': |
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30 | 30 | app = QtCore.QCoreApplication.instance() |
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31 | 31 | if app is None: |
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32 | 32 | app = QtGui.QApplication([]) |
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33 | 33 | |
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34 | 34 | sw = SimpleWindow() |
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35 | 35 | sw.show() |
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36 | 36 | |
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37 | 37 | try: |
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38 | from IPython.lib.inputhook import enable_qt4 | |
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39 | enable_qt4() | |
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38 | # Note: the following form allows this script to work both inside | |
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39 | # ipython and without it, but `%gui qt` MUST be run first (or | |
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40 | # equivalently, ipython could have been started with `--gui=qt`). | |
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41 | from IPython.lib.guisupport import start_event_loop_qt4 | |
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42 | start_event_loop_qt4(app) | |
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43 | ||
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44 | # This from doesn't require the gui support to have been enabled in | |
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45 | # advance, but it won't work if the script is run as a standalone app | |
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46 | # outside of IPython while the user does have IPython available. | |
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47 | #from IPython.lib.inputhook import enable_qt4; enable_qt4(app) | |
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40 | 48 | except ImportError: |
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41 | 49 | app.exec_() |
@@ -1,32 +1,32 b'' | |||
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1 | 1 | #!/usr/bin/env python |
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2 | 2 | """Simple Tk example to manually test event loop integration. |
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3 | 3 | |
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4 | 4 | This is meant to run tests manually in ipython as: |
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5 | 5 | |
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6 | 6 | In [5]: %gui tk |
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7 | 7 | |
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8 | 8 | In [6]: %run gui-tk.py |
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9 | 9 | """ |
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10 | 10 | |
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11 | 11 | from Tkinter import * |
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12 | 12 | |
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13 | 13 | class MyApp: |
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14 | 14 | |
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15 | 15 | def __init__(self, root): |
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16 | 16 | frame = Frame(root) |
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17 | 17 | frame.pack() |
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18 | 18 | |
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19 | 19 | self.button = Button(frame, text="Hello", command=self.hello_world) |
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20 | 20 | self.button.pack(side=LEFT) |
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21 | 21 | |
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22 | 22 | def hello_world(self): |
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23 | 23 | print "Hello World!" |
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24 | 24 | |
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25 | 25 | root = Tk() |
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26 | 26 | |
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27 | 27 | app = MyApp(root) |
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28 | 28 | |
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29 | 29 | try: |
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30 | from IPython import enable_tk; enable_tk(root) | |
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30 | from IPython.lib.inputhook import enable_tk; enable_tk(root) | |
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31 | 31 | except ImportError: |
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32 | 32 | root.mainloop() |
@@ -1,109 +1,111 b'' | |||
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1 | #!/usr/bin/env python | |
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1 | 2 | """A Simple wx example to test IPython's event loop integration. |
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2 | 3 | |
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3 | 4 | To run this do: |
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4 | 5 | |
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5 | 6 | In [5]: %gui wx |
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6 | 7 | |
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7 | 8 | In [6]: %run gui-wx.py |
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8 | 9 | |
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9 | 10 | Ref: Modified from wxPython source code wxPython/samples/simple/simple.py |
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10 | 11 | |
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11 | 12 | This example can only be run once in a given IPython session because when |
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12 | 13 | the frame is closed, wx goes through its shutdown sequence, killing further |
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13 | 14 | attempts. I am sure someone who knows wx can fix this issue. |
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14 | 15 | |
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15 | 16 | Furthermore, once this example is run, the Wx event loop is mostly dead, so |
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16 | 17 | even other new uses of Wx may not work correctly. If you know how to better |
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17 | 18 | handle this, please contact the ipython developers and let us know. |
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18 | 19 | |
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19 | 20 | Note however that we will work with the Matplotlib and Enthought developers so |
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20 | 21 | that the main interactive uses of Wx we are aware of, namely these tools, will |
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21 | 22 | continue to work well with IPython interactively. |
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22 | 23 | """ |
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23 | 24 | |
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24 | 25 | import wx |
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25 | 26 | |
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26 | 27 | |
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27 | 28 | class MyFrame(wx.Frame): |
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28 | 29 | """ |
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29 | 30 | This is MyFrame. It just shows a few controls on a wxPanel, |
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30 | 31 | and has a simple menu. |
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31 | 32 | """ |
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32 | 33 | def __init__(self, parent, title): |
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33 | 34 | wx.Frame.__init__(self, parent, -1, title, |
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34 | 35 | pos=(150, 150), size=(350, 200)) |
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35 | 36 | |
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36 | 37 | # Create the menubar |
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37 | 38 | menuBar = wx.MenuBar() |
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38 | 39 | |
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39 | 40 | # and a menu |
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40 | 41 | menu = wx.Menu() |
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41 | 42 | |
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42 | 43 | # add an item to the menu, using \tKeyName automatically |
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43 | 44 | # creates an accelerator, the third param is some help text |
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44 | 45 | # that will show up in the statusbar |
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45 | 46 | menu.Append(wx.ID_EXIT, "E&xit\tAlt-X", "Exit this simple sample") |
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46 | 47 | |
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47 | 48 | # bind the menu event to an event handler |
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48 | 49 | self.Bind(wx.EVT_MENU, self.OnTimeToClose, id=wx.ID_EXIT) |
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49 | 50 | |
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50 | 51 | # and put the menu on the menubar |
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51 | 52 | menuBar.Append(menu, "&File") |
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52 | 53 | self.SetMenuBar(menuBar) |
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53 | 54 | |
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54 | 55 | self.CreateStatusBar() |
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55 | 56 | |
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56 | 57 | # Now create the Panel to put the other controls on. |
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57 | 58 | panel = wx.Panel(self) |
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58 | 59 | |
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59 | 60 | # and a few controls |
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60 | 61 | text = wx.StaticText(panel, -1, "Hello World!") |
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61 | 62 | text.SetFont(wx.Font(14, wx.SWISS, wx.NORMAL, wx.BOLD)) |
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62 | 63 | text.SetSize(text.GetBestSize()) |
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63 | 64 | btn = wx.Button(panel, -1, "Close") |
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64 | 65 | funbtn = wx.Button(panel, -1, "Just for fun...") |
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65 | 66 | |
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66 | 67 | # bind the button events to handlers |
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67 | 68 | self.Bind(wx.EVT_BUTTON, self.OnTimeToClose, btn) |
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68 | 69 | self.Bind(wx.EVT_BUTTON, self.OnFunButton, funbtn) |
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69 | 70 | |
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70 | 71 | # Use a sizer to layout the controls, stacked vertically and with |
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71 | 72 | # a 10 pixel border around each |
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72 | 73 | sizer = wx.BoxSizer(wx.VERTICAL) |
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73 | 74 | sizer.Add(text, 0, wx.ALL, 10) |
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74 | 75 | sizer.Add(btn, 0, wx.ALL, 10) |
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75 | 76 | sizer.Add(funbtn, 0, wx.ALL, 10) |
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76 | 77 | panel.SetSizer(sizer) |
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77 | 78 | panel.Layout() |
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78 | 79 | |
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79 | 80 | |
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80 | 81 | def OnTimeToClose(self, evt): |
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81 | 82 | """Event handler for the button click.""" |
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82 | 83 | print "See ya later!" |
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83 | 84 | self.Close() |
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84 | 85 | |
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85 | 86 | def OnFunButton(self, evt): |
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86 | 87 | """Event handler for the button click.""" |
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87 | 88 | print "Having fun yet?" |
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88 | 89 | |
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89 | 90 | |
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90 | 91 | class MyApp(wx.App): |
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91 | 92 | def OnInit(self): |
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92 | 93 | frame = MyFrame(None, "Simple wxPython App") |
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93 | 94 | self.SetTopWindow(frame) |
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94 | 95 | |
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95 | 96 | print "Print statements go to this stdout window by default." |
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96 | 97 | |
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97 | 98 | frame.Show(True) |
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98 | 99 | return True |
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99 | 100 | |
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100 | app = wx.GetApp() | |
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101 | if app is None: | |
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102 | app = MyApp(redirect=False, clearSigInt=False) | |
|
101 | if __name__ == '__main__': | |
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102 | app = wx.GetApp() | |
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103 | if app is None: | |
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104 | app = MyApp(redirect=False, clearSigInt=False) | |
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103 | 105 | |
|
104 | try: | |
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105 | from IPython.lib.inputhook import enable_wx | |
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106 | enable_wx(app) | |
|
107 | except ImportError: | |
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108 | app.MainLoop() | |
|
106 | try: | |
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107 | from IPython.lib.inputhook import enable_wx | |
|
108 | enable_wx(app) | |
|
109 | except ImportError: | |
|
110 | app.MainLoop() | |
|
109 | 111 |
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