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annotate libgui/graphics/Backend.cc @ 20038:f0e61a67ad9f

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Update copyright year in Qt graphics code.
author John W. Eaton <jwe@octave.org>
date Fri, 20 Mar 2015 16:18:10 -0400
parents 3cc0734283dc
children 0fc9b572e566
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1 /*
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2
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3 Copyright (C) 2011-2015 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
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52 toolkitObjectProperty (const graphics_object& go)
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53 {
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54 if (go.isa ("figure"))
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55 return std::string ("__plot_stream__");
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56 else if (go.isa ("uicontrol")
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57 || go.isa ("uipanel")
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58 || go.isa ("uimenu")
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59 || go.isa ("uicontextmenu")
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60 || go.isa ("uitoolbar")
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61 || go.isa ("uipushtool")
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62 || go.isa ("uitoggletool"))
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63 return std::string ("__object__");
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64 else
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65 qCritical ("QtHandles::Backend: no __object__ property known for object "
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66 "of type %s", go.type ().c_str ());
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67
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68 return std::string ();
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69 }
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70
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71 Backend::Backend (void)
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72 : QObject (), base_graphics_toolkit ("qt")
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73 {
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74 ObjectFactory* factory = ObjectFactory::instance ();
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75
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76 connect (this, SIGNAL (createObject (double)),
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77 factory, SLOT (createObject (double)));
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78 }
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79
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80 Backend::~Backend (void)
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81 {
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82 }
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83
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84 bool
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85 Backend::initialize (const graphics_object& go)
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86 {
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87 if (go.isa ("figure")
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88 || go.isa ("uicontrol")
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89 || go.isa ("uipanel")
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90 || go.isa ("uimenu")
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91 || go.isa ("uicontextmenu")
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92 || go.isa ("uitoolbar")
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93 || go.isa ("uipushtool")
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94 || go.isa ("uitoggletool"))
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95 {
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96 Logger::debug ("Backend::initialize %s from thread %08x",
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97 go.type ().c_str (), QThread::currentThreadId ());
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98
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99 ObjectProxy* proxy = new ObjectProxy ();
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100 graphics_object gObj (go);
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101
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102 OCTAVE_PTR_TYPE tmp (reinterpret_cast <OCTAVE_INTPTR_TYPE> (proxy));
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103 gObj.get_properties ().set(toolkitObjectProperty (go), tmp);
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104
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105 emit createObject (go.get_handle ().value ());
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106
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107 return true;
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108 }
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109
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110 return false;
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111 }
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112
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113 void
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114 Backend::update (const graphics_object& go, int pId)
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115 {
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116 // Rule out obvious properties we want to ignore.
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117 if (pId == figure::properties::ID___PLOT_STREAM__
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118 || pId == uicontrol::properties::ID___OBJECT__
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119 || pId == uipanel::properties::ID___OBJECT__
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120 || pId == uimenu::properties::ID___OBJECT__
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121 || pId == uicontextmenu::properties::ID___OBJECT__
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122 || pId == uitoolbar::properties::ID___OBJECT__
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123 || pId == uipushtool::properties::ID___OBJECT__
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124 || pId == uitoggletool::properties::ID___OBJECT__
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125 || pId == base_properties::ID___MODIFIED__)
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126 return;
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127
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128 Logger::debug ("Backend::update %s(%d) from thread %08x",
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129 go.type ().c_str (), pId, QThread::currentThreadId ());
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130
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131 ObjectProxy* proxy = toolkitObjectProxy (go);
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132
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133 if (proxy)
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134 {
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135 if (go.isa ("uicontrol")
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136 && pId == uicontrol::properties::ID_STYLE)
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137 {
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138 // Special case: we need to recreate the control widget
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139 // associated with the octave graphics_object
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140
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141 finalize (go);
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142 initialize (go);
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143 }
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144 else
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145 proxy->update (pId);
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146 }
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147 }
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148
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149 void
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150 Backend::finalize (const graphics_object& go)
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151 {
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152 Logger::debug ("Backend::finalize %s from thread %08x",
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153 go.type ().c_str (), QThread::currentThreadId ());
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154
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155 ObjectProxy* proxy = toolkitObjectProxy (go);
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156
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157 if (proxy)
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158 {
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159 proxy->finalize ();
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160 delete proxy;
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161
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162 graphics_object gObj (go);
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163
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164 gObj.get_properties ().set (toolkitObjectProperty (go), Matrix ());
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165 }
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166 }
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167
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168 void
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169 Backend::redraw_figure (const graphics_object& go) const
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170 {
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171 if (go.get_properties ().is_visible ())
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172 {
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173 ObjectProxy* proxy = toolkitObjectProxy (go);
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174
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175 if (proxy)
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176 proxy->redraw ();
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177 }
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178 }
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179
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180 void
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181 Backend::print_figure (const graphics_object& go,
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182 const std::string& term,
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183 const std::string& file_cmd, bool /*mono*/,
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184 const std::string& /*debug_file*/) const
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185 {
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186 if (go.get_properties ().is_visible ())
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187 {
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188 ObjectProxy* proxy = toolkitObjectProxy (go);
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189
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190 if (proxy)
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191 proxy->print (QString::fromStdString (file_cmd),
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192 QString::fromStdString (term));
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193 }
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194 }
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195
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196 Object*
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197 Backend::toolkitObject (const graphics_object& go)
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198 {
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199 ObjectProxy* proxy = toolkitObjectProxy (go);
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200
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201 if (proxy)
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202 return proxy->object ();
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203
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204 return 0;
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205 }
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206
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207 ObjectProxy*
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208 Backend::toolkitObjectProxy (const graphics_object& go)
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209 {
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210 if (go)
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211 {
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212 octave_value ov = go.get (toolkitObjectProperty (go));
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213
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214 if (ov.is_defined () && ! ov.is_empty ())
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215 {
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216 OCTAVE_INTPTR_TYPE ptr = ov.OCTAVE_PTR_SCALAR ().value ();
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217
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218 if (! error_state)
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219 return reinterpret_cast<ObjectProxy*> (ptr);
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220 }
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221 }
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222
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223 return 0;
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224 }
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225
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226 };