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annotate libgui/graphics/Container.cc @ 31649:deb553ac2c54

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maint: Merge stable to default.
author John W. Eaton <jwe@octave.org>
date Tue, 06 Dec 2022 15:45:27 -0500
parents 431f80aba37a 29d734430e5f
children 5f11de0e7440
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2011-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include <QChildEvent>
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31 #include <QVBoxLayout>
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32
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33 #include "Canvas.h"
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34 #include "Container.h"
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35 #include "Object.h"
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36 #include "QtHandlesUtils.h"
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37
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38 #include "graphics.h"
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39 #include "interpreter.h"
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40
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41 OCTAVE_BEGIN_NAMESPACE(octave)
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42
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43 Container::Container (QWidget *xparent, octave::interpreter& interp)
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44 : ContainerBase (xparent), m_interpreter (interp), m_canvas (nullptr)
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45 {
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46 setFocusPolicy (Qt::ClickFocus);
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47 }
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48
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49 Container::~Container (void)
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50 { }
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51
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52 Canvas *
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53 Container::canvas (const graphics_handle& gh, bool xcreate)
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54 {
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55 if (! m_canvas && xcreate)
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56 {
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57 gh_manager& gh_mgr = m_interpreter.get_gh_manager ();
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58
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59 octave::autolock guard (gh_mgr.graphics_lock ());
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60
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61 graphics_object go = gh_mgr.get_object (gh);
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62
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63 if (go)
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64 {
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65 graphics_object fig = go.get_ancestor ("figure");
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66
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67 m_canvas = Canvas::create (m_interpreter, gh, this,
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68 fig.get ("renderer").string_value ());
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69
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70 connect (m_canvas, QOverload<const octave::fcn_callback&>::of (&Canvas::interpreter_event),
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71 this, QOverload<const octave::fcn_callback&>::of (&Container::interpreter_event));
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73 connect (m_canvas, QOverload<const octave::meth_callback&>::of (&Canvas::interpreter_event),
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74 this, QOverload<const octave::meth_callback&>::of (&Container::interpreter_event));
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75
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76 connect (m_canvas,
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77 SIGNAL (gh_callback_event (const graphics_handle&,
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78 const std::string&)),
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79 this,
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80 SIGNAL (gh_callback_event (const graphics_handle&,
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81 const std::string&)));
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82
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83 connect (m_canvas,
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84 SIGNAL (gh_callback_event (const graphics_handle&,
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85 const std::string&,
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86 const octave_value&)),
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87 this,
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88 SIGNAL (gh_callback_event (const graphics_handle&,
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89 const std::string&,
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90 const octave_value&)));
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91
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92 connect (m_canvas,
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93 SIGNAL (gh_set_event (const graphics_handle&,
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94 const std::string&,
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95 const octave_value&)),
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96 this,
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97 SIGNAL (gh_set_event (const graphics_handle&,
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98 const std::string&,
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99 const octave_value&)));
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100
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101 connect (m_canvas,
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102 SIGNAL (gh_set_event (const graphics_handle&,
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103 const std::string&,
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104 const octave_value&, bool)),
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105 this,
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106 SIGNAL (gh_set_event (const graphics_handle&,
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107 const std::string&,
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108 const octave_value&, bool)));
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109
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110 connect (m_canvas,
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111 SIGNAL (gh_set_event (const graphics_handle&,
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112 const std::string&,
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113 const octave_value&, bool, bool)),
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114 this,
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115 SIGNAL (gh_set_event (const graphics_handle&,
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116 const std::string&,
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117 const octave_value&, bool, bool)));
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118
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119 QWidget *canvasWidget = m_canvas->qWidget ();
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120
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121 canvasWidget->lower ();
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122 canvasWidget->show ();
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123 canvasWidget->setGeometry (0, 0, width (), height ());
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124 }
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125 }
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126
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127 return m_canvas;
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128 }
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129
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130 void
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131 Container::resizeEvent (QResizeEvent * /* event */)
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132 {
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133 if (m_canvas)
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134 m_canvas->qWidget ()->setGeometry (0, 0, width (), height ());
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135
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136 gh_manager& gh_mgr = m_interpreter.get_gh_manager ();
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137
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138 octave::autolock guard (gh_mgr.graphics_lock ());
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139
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140 for (auto *qObj : children ())
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141 {
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142 if (qObj->isWidgetType ())
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143 {
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144 Object *obj = Object::fromQObject (qObj);
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145
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146 if (obj)
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147 {
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148 graphics_object go = obj->object ();
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149
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150 if (go.valid_object ())
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151 {
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152 Matrix bb = go.get_properties ().get_boundingbox (false);
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153
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154 obj->qWidget<QWidget> ()->setGeometry
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155 (octave::math::round (bb(0)),
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156 octave::math::round (bb(1)),
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157 octave::math::round (bb(2)),
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158 octave::math::round (bb(3)));
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159 }
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160 }
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161 }
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162 }
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163 }
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164
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165 void
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166 Container::childEvent (QChildEvent *xevent)
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167 {
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168 // Enable mouse tracking in child widgets as they are added if the
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169 // container also has mouse tracking enabled. There is no need to
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170 // do this when child objects are removed.
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171
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172 if (xevent->added ())
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173 {
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174 QObject *obj = xevent->child ();
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175
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176 if (obj && obj->isWidgetType ())
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177 {
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178 QWidget *widget = qobject_cast<QWidget *> (obj);
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179
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180 if (widget)
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181 widget->setMouseTracking (hasMouseTracking ());
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182 }
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183 }
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184 }
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185
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186 OCTAVE_END_NAMESPACE(octave)