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annotate libgui/graphics/Object.cc @ 18569:523878f76518 gui-release

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author John W. Eaton <jwe@octave.org>
date Thu, 20 Feb 2014 15:10:07 -0500
parents 49877d3be064
children fb96b7f55242
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rev   line source
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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 #include <QVariant>
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28
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29 #include "Backend.h"
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30 #include "Object.h"
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31 #include "Utils.h"
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32
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33 namespace QtHandles
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34 {
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35
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36 Object::Object (const graphics_object& go, QObject* obj)
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37 : QObject (), m_handle (go.get_handle ()), m_qobject (0)
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38 {
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39 gh_manager::auto_lock lock (false);
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40
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41 if (! lock)
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42 qCritical ("QtHandles::Object::Object: "
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43 "creating Object (h=%g) without a valid lock!!!",
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44 m_handle.value ());
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45
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46 init (obj);
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47 }
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48
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49 void Object::init (QObject* obj, bool)
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50 {
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51 if (m_qobject)
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52 qCritical ("QtHandles::Object::init: "
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53 "resetting QObject while in invalid state");
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54
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55 m_qobject = obj;
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56
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57 if (m_qobject)
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58 {
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59 m_qobject->setProperty ("QtHandles::Object",
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60 qVariantFromValue<void*> (this));
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61 connect (m_qobject, SIGNAL (destroyed (QObject*)),
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62 SLOT (objectDestroyed (QObject*)));
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63 }
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64 }
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65
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66 Object::~Object (void)
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67 {
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68 }
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69
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70 graphics_object Object::object (void) const
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71 {
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72 gh_manager::auto_lock lock (false);
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73
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74 if (! lock)
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75 qCritical ("QtHandles::Object::object: "
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76 "accessing graphics object (h=%g) without a valid lock!!!",
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77 m_handle.value ());
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78
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79 return gh_manager::get_object (m_handle);
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80 }
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81
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82 void Object::slotUpdate (int pId)
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83 {
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84 gh_manager::auto_lock lock;
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85
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86 switch (pId)
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87 {
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88 // Special case for objects being deleted, as it's very likely
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89 // that the graphics_object already has been destroyed when this
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90 // is executed (because of the async behavior).
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91 case base_properties::ID_BEINGDELETED:
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92 beingDeleted ();
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93 break;
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94 default:
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95 if (object ().valid_object ())
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96 update (pId);
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97 break;
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98 }
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99 }
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100
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101 void Object::slotFinalize (void)
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102 {
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103 gh_manager::auto_lock lock;
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104
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105 finalize ();
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106 }
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107
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108 void Object::slotRedraw (void)
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109 {
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110 gh_manager::auto_lock lock;
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111
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112 if (object ().valid_object ())
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113 redraw ();
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114 }
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115
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116 void Object::update (int /* pId */)
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117 {
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118 }
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119
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120 void Object::finalize (void)
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121 {
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122 if (m_qobject)
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123 {
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124 delete m_qobject;
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125 m_qobject = 0;
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126 }
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127 deleteLater ();
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128 }
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129
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130 void Object::redraw (void)
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131 {
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132 }
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133
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134 void Object::beingDeleted (void)
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135 {
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136 }
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137
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138 void Object::objectDestroyed (QObject* obj)
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139 {
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140 if (obj && obj == m_qobject)
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141 m_qobject = 0;
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142 }
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143
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144 Object* Object::parentObject (const graphics_object& go)
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145 {
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146 Object* parent = Backend::toolkitObject
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147 (gh_manager::get_object (go.get_parent ()));
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148
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149 return parent;
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150 }
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151
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152 Object* Object::fromQObject (QObject* obj)
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153 {
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154 QVariant v = obj->property ("QtHandles::Object");
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155
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156 if (v.isValid ())
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157 return reinterpret_cast<Object*> (qVariantValue<void*> (v));
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158
2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
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159 return 0;
2e7cad6f180c Initial integration of QtHandles.
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160 }
2e7cad6f180c Initial integration of QtHandles.
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161
2e7cad6f180c Initial integration of QtHandles.
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162 }; // namespace QtHandles