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annotate libgui/graphics/Backend.cc @ 19649:4c1f638a381e gui-release

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avoid old-style cast warning in libgui * graphics/Backend.cc: Replace C-style cast with reinterpret_cast.
author John W. Eaton <jwe@octave.org>
date Fri, 23 Jan 2015 14:37:43 -0500
parents 523878f76518
children af0399a5aae0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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 <QApplication>
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28 #include <QThread>
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29
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30 #include <stdint.h>
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31
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32 #include "Backend.h"
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33 #include "Logger.h"
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34 #include "Object.h"
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35 #include "ObjectFactory.h"
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36 #include "ObjectProxy.h"
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37
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38 //#if INTPTR_MAX == INT32_MAX
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39 //# define OCTAVE_PTR_TYPE octave_uint32
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40 //# define OCTAVE_INTPTR_TYPE uint32_t
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41 //# define OCTAVE_PTR_SCALAR uint32_scalar_value
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42 //#else
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43 # define OCTAVE_PTR_TYPE octave_uint64
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44 # define OCTAVE_INTPTR_TYPE uint64_t
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45 # define OCTAVE_PTR_SCALAR uint64_scalar_value
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46 //#endif
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47
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48 namespace QtHandles
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49 {
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50
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51 static std::string toolkitObjectProperty (const graphics_object& go)
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52 {
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53 if (go.isa ("figure"))
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54 return std::string ("__plot_stream__");
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55 else if (go.isa ("uicontrol")
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56 || go.isa ("uipanel")
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57 || go.isa ("uimenu")
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58 || go.isa ("uicontextmenu")
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59 || go.isa ("uitoolbar")
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60 || go.isa ("uipushtool")
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61 || go.isa ("uitoggletool"))
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62 return std::string ("__object__");
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63 else
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64 qCritical ("QtHandles::Backend: no __object__ property known for object "
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65 "of type %s", go.type ().c_str ());
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66
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67 return std::string ();
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68 }
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69
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70 Backend::Backend (void)
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71 : QObject (), base_graphics_toolkit ("qt")
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72 {
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73 ObjectFactory* factory = ObjectFactory::instance ();
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74
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75 connect (this, SIGNAL (createObject (double)),
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76 factory, SLOT (createObject (double)));
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77 }
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78
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79 Backend::~Backend (void)
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80 {
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81 }
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82
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83 bool Backend::initialize (const graphics_object& go)
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84 {
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85 if (go.isa ("figure")
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86 || go.isa ("uicontrol")
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87 || go.isa ("uipanel")
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88 || go.isa ("uimenu")
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89 || go.isa ("uicontextmenu")
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90 || go.isa ("uitoolbar")
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91 || go.isa ("uipushtool")
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92 || go.isa ("uitoggletool"))
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93 {
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94 Logger::debug ("Backend::initialize %s from thread %08x",
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95 go.type ().c_str (), QThread::currentThreadId ());
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96
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97 ObjectProxy* proxy = new ObjectProxy ();
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98 graphics_object gObj (go);
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99
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100 gObj.get_properties ().set(toolkitObjectProperty (go),
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101 OCTAVE_PTR_TYPE (reinterpret_cast <OCTAVE_INTPTR_TYPE> (proxy)));
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102
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103 emit createObject (go.get_handle ().value ());
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104
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105 return true;
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106 }
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107
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108 return false;
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109 }
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110
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111 void Backend::update (const graphics_object& go, int pId)
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112 {
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113 // Rule out obvious properties we want to ignore.
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114 if (pId == figure::properties::ID___PLOT_STREAM__
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115 || pId == uicontrol::properties::ID___OBJECT__
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116 || pId == uipanel::properties::ID___OBJECT__
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117 || pId == uimenu::properties::ID___OBJECT__
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118 || pId == uicontextmenu::properties::ID___OBJECT__
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119 || pId == uitoolbar::properties::ID___OBJECT__
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120 || pId == uipushtool::properties::ID___OBJECT__
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121 || pId == uitoggletool::properties::ID___OBJECT__
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122 || pId == base_properties::ID___MODIFIED__)
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123 return;
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124
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125 Logger::debug ("Backend::update %s(%d) from thread %08x",
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126 go.type ().c_str (), pId, QThread::currentThreadId ());
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127
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128 ObjectProxy* proxy = toolkitObjectProxy (go);
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129
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130 if (proxy)
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131 {
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132 if (go.isa ("uicontrol")
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133 && pId == uicontrol::properties::ID_STYLE)
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134 {
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135 // Special case: we need to recreate the control widget
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136 // associated with the octave graphics_object
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137
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138 finalize (go);
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139 initialize (go);
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140 }
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141 else
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142 proxy->update (pId);
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143 }
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144 }
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145
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146 void Backend::finalize (const graphics_object& go)
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147 {
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148 Logger::debug ("Backend::finalize %s from thread %08x",
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149 go.type ().c_str (), QThread::currentThreadId ());
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150
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151 ObjectProxy* proxy = toolkitObjectProxy (go);
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152
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153 if (proxy)
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154 {
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155 proxy->finalize ();
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156 delete proxy;
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157
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158 graphics_object gObj (go);
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159
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160 gObj.get_properties ().set (toolkitObjectProperty (go), Matrix ());
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161 }
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162 }
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163
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164 void Backend::redraw_figure (const graphics_object& go) const
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165 {
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166 if (go.get_properties ().is_visible ())
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167 {
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168 ObjectProxy* proxy = toolkitObjectProxy (go);
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169
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170 if (proxy)
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171 proxy->redraw ();
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172 }
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173 }
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174
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175 Object* Backend::toolkitObject (const graphics_object& go)
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176 {
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177 ObjectProxy* proxy = toolkitObjectProxy (go);
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178
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179 if (proxy)
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180 return proxy->object ();
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181
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182 return 0;
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John W. Eaton <jwe@octave.org>
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183 }
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John W. Eaton <jwe@octave.org>
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184
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185 ObjectProxy* Backend::toolkitObjectProxy (const graphics_object& go)
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186 {
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187 if (go)
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188 {
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189 octave_value ov = go.get (toolkitObjectProperty (go));
2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
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190
2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
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191 if (ov.is_defined () && ! ov.is_empty ())
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John W. Eaton <jwe@octave.org>
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192 {
2e7cad6f180c Initial integration of QtHandles.
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193 OCTAVE_INTPTR_TYPE ptr = ov.OCTAVE_PTR_SCALAR ().value ();
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John W. Eaton <jwe@octave.org>
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194
2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
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195 if (! error_state)
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196 return reinterpret_cast<ObjectProxy*> (ptr);
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197 }
2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
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198 }
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John W. Eaton <jwe@octave.org>
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199
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200 return 0;
2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
parents:
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201 }
2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
parents:
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202
2e7cad6f180c Initial integration of QtHandles.
John W. Eaton <jwe@octave.org>
parents:
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203 };