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annotate libgui/graphics/GLCanvas.cc @ 20002:3cc0734283dc

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style fixes in Qt graphics code * Backend.cc, BaseControl.cc, ButtonControl.cc, Canvas.cc, CheckBoxControl.cc, Container.cc, ContextMenu.cc, EditControl.cc, Figure.cc, FigureWindow.cc, GLCanvas.cc, KeyMap.cc, ListBoxControl.cc, Logger.cc, Menu.cc, MouseModeActionGroup.cc, Object.cc, ObjectFactory.cc, ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc, PushTool.cc, QtHandlesUtils.cc, RadioButtonControl.cc, SliderControl.cc, TextControl.cc, TextEdit.cc, ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, ToolBarButton.cc, __init_qt__.cc: Follow a few more Octave coding conventions.
author John W. Eaton <jwe@octave.org>
date Thu, 19 Mar 2015 12:27:54 -0400
parents b6061813a693
children f0e61a67ad9f
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1 /*
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2
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3 Copyright (C) 2011-2014 Michael Goffioul
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #ifdef HAVE_CONFIG_H
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28 #include <config.h>
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29 #endif
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30
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31 #include "gl-render.h"
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32 #include "graphics.h"
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33
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34 #include "GLCanvas.h"
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35 #include "gl-select.h"
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36
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37 namespace QtHandles
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38 {
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39
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40 GLCanvas::GLCanvas (QWidget* xparent, const graphics_handle& gh)
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41 : QGLWidget (QGLFormat(QGL::SampleBuffers), xparent), Canvas (gh)
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42 {
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43 setFocusPolicy (Qt::ClickFocus);
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44 }
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45
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46 GLCanvas::~GLCanvas (void)
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47 {
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48 }
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49
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50 void
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51 GLCanvas::draw (const graphics_handle& gh)
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52 {
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53 gh_manager::auto_lock lock;
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54 graphics_object go = gh_manager::get_object (gh);
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55
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56 if (go)
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57 {
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58 opengl_renderer r;
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59
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60 r.set_viewport (width (), height ());
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61 r.draw(go);
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62 }
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63 }
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64
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65 void
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66 GLCanvas::toggleAxes (const graphics_handle& gh)
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67 {
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68 canvasToggleAxes (gh);
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69 }
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70
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71 void
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72 GLCanvas::toggleGrid (const graphics_handle& gh)
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73 {
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74 canvasToggleGrid (gh);
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75 }
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76
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77 void
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78 GLCanvas::autoAxes (const graphics_handle& gh)
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79 {
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80 canvasAutoAxes (gh);
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81 }
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82
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83 graphics_object
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84 GLCanvas::selectFromAxes (const graphics_object& ax, const QPoint& pt)
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85 {
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86 makeCurrent ();
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87
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88 if (ax)
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89 {
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90 opengl_selector s;
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91
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92 s.set_viewport (width (), height ());
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93 return s.select (ax, pt.x (), height () - pt.y ());
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94 }
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95
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96 return graphics_object ();
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97 }
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98
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99 inline void
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100 glDrawZoomBox (const QPoint& p1, const QPoint& p2)
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101 {
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102 glVertex2d (p1.x (), p1.y ());
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103 glVertex2d (p2.x (), p1.y ());
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104 glVertex2d (p2.x (), p2.y ());
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105 glVertex2d (p1.x (), p2.y ());
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106 glVertex2d (p1.x (), p1.y ());
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107 }
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108
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109 void
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110 GLCanvas::drawZoomBox (const QPoint& p1, const QPoint& p2)
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111 {
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112 glPushMatrix ();
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113
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114 glMatrixMode (GL_MODELVIEW);
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115 glLoadIdentity ();
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116
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117 glMatrixMode (GL_PROJECTION);
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118 glLoadIdentity ();
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119 glOrtho (0, width (), height (), 0, 1, -1);
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120
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121 glPushAttrib (GL_DEPTH_BUFFER_BIT | GL_CURRENT_BIT);
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122 glDisable (GL_DEPTH_TEST);
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123
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124 glBegin (GL_POLYGON);
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125 glColor4f (0.45, 0.62, 0.81, 0.1);
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126 glDrawZoomBox (p1, p2);
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127 glEnd ();
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128
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129 glBegin (GL_LINE_STRIP);
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130 glLineWidth (1.5);
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131 glColor4f (0.45, 0.62, 0.81, 0.9);
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132 glDrawZoomBox (p1, p2);
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133 glEnd ();
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134
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135 glPopAttrib ();
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136 glPopMatrix ();
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137 }
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138
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139 void
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140 GLCanvas::paintGL (void)
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141 {
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142 canvasPaintEvent ();
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143 }
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144
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145 void
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146 GLCanvas::mouseDoubleClickEvent (QMouseEvent* xevent)
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147 {
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148 canvasMouseDoubleClickEvent (xevent);
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149 }
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150
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151 void
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152 GLCanvas::mouseMoveEvent (QMouseEvent* xevent)
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153 {
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154 canvasMouseMoveEvent (xevent);
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155 }
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156
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157 void
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158 GLCanvas::mousePressEvent (QMouseEvent* xevent)
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159 {
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160 canvasMousePressEvent (xevent);
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161 }
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162
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163 void
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164 GLCanvas::mouseReleaseEvent (QMouseEvent* xevent)
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165 {
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166 canvasMouseReleaseEvent (xevent);
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167 }
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168
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169 void
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170 GLCanvas::wheelEvent (QWheelEvent* xevent)
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171 {
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172 canvasWheelEvent (xevent);
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173 }
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174
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175 void
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176 GLCanvas::keyPressEvent (QKeyEvent* xevent)
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177 {
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178 if (! canvasKeyPressEvent (xevent))
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179 QGLWidget::keyPressEvent (xevent);
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180 }
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181
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182 void
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183 GLCanvas::keyReleaseEvent (QKeyEvent* xevent)
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184 {
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185 if (! canvasKeyReleaseEvent (xevent))
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186 QGLWidget::keyReleaseEvent (xevent);
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187 }
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188
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189 }; // namespace QtHandles