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annotate libgui/graphics/Object.cc @ 19715:35bca657d74d

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printing for Qt plot widget (bug #42537) * Backend.h, Backend.cc (Backend::print_figure): New function. * Canvas.h, Canvas.cc (Canvas::print): New function. * Figure.h, Figure.cc (Figure:print): New function. * Object.h, Object.cc (Object::slotPrint, Object::print): New functions. * ObjectProxy.h, ObjectProxy.cc (ObjectProxy::print): New function. (ObjectProxy::sendPrint): New signal. (ObjectProxy::init): Connect sendPrint signal to slotPrint slot of current object.
author John W. Eaton <jwe@octave.org>
date Sun, 08 Feb 2015 16:25:06 -0500
parents fe0e34be5576
children 5fec783ffc6d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 <QString>
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28 #include <QVariant>
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29
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30 #include "Backend.h"
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31 #include "Object.h"
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32 #include "QtHandlesUtils.h"
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33
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34 namespace QtHandles
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35 {
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36
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37 Object::Object (const graphics_object& go, QObject* obj)
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38 : QObject (), m_handle (go.get_handle ()), m_qobject (0)
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39 {
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40 gh_manager::auto_lock lock (false);
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41
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42 if (! lock)
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43 qCritical ("QtHandles::Object::Object: "
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44 "creating Object (h=%g) without a valid lock!!!",
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45 m_handle.value ());
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46
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47 init (obj);
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48 }
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49
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50 void Object::init (QObject* obj, bool)
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51 {
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52 if (m_qobject)
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53 qCritical ("QtHandles::Object::init: "
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54 "resetting QObject while in invalid state");
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55
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56 m_qobject = obj;
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57
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58 if (m_qobject)
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59 {
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60 m_qobject->setProperty ("QtHandles::Object",
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61 qVariantFromValue<void*> (this));
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62 connect (m_qobject, SIGNAL (destroyed (QObject*)),
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63 SLOT (objectDestroyed (QObject*)));
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64 }
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65 }
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66
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67 Object::~Object (void)
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68 {
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69 }
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70
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71 graphics_object Object::object (void) const
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72 {
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73 gh_manager::auto_lock lock (false);
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74
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75 if (! lock)
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76 qCritical ("QtHandles::Object::object: "
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77 "accessing graphics object (h=%g) without a valid lock!!!",
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78 m_handle.value ());
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79
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80 return gh_manager::get_object (m_handle);
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81 }
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82
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83 void Object::slotUpdate (int pId)
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84 {
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85 gh_manager::auto_lock lock;
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86
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87 switch (pId)
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88 {
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89 // Special case for objects being deleted, as it's very likely
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90 // that the graphics_object already has been destroyed when this
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91 // is executed (because of the async behavior).
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92 case base_properties::ID_BEINGDELETED:
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93 beingDeleted ();
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94 break;
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95 default:
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96 if (object ().valid_object ())
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97 update (pId);
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98 break;
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99 }
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100 }
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101
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102 void Object::slotFinalize (void)
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103 {
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104 gh_manager::auto_lock lock;
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105
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106 finalize ();
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107 }
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108
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109 void Object::slotRedraw (void)
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110 {
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111 gh_manager::auto_lock lock;
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112
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113 if (object ().valid_object ())
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114 redraw ();
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115 }
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116
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117 void Object::slotPrint (const QString& file_cmd, const QString& term)
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118 {
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119 gh_manager::auto_lock lock;
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120
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121 if (object ().valid_object ())
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122 print (file_cmd, term);
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123 }
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124
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125 void Object::update (int /* pId */)
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126 {
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127 }
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128
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129 void Object::finalize (void)
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130 {
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131 if (m_qobject)
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132 {
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133 delete m_qobject;
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134 m_qobject = 0;
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135 }
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136 deleteLater ();
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137 }
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138
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139 void Object::redraw (void)
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140 {
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141 }
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142
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143 void Object::print (const QString& file_cmd, const QString& term)
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144 {
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145 }
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146
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147 void Object::beingDeleted (void)
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148 {
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149 }
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150
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151 void Object::objectDestroyed (QObject* obj)
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152 {
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153 if (obj && obj == m_qobject)
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154 m_qobject = 0;
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155 }
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156
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157 Object* Object::parentObject (const graphics_object& go)
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158 {
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159 Object* parent = Backend::toolkitObject
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160 (gh_manager::get_object (go.get_parent ()));
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161
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162 return parent;
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163 }
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164
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165 Object* Object::fromQObject (QObject* obj)
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166 {
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167 QVariant v = obj->property ("QtHandles::Object");
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168
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169 if (v.isValid ())
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170 return reinterpret_cast<Object*> (qVariantValue<void*> (v));
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171
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172 return 0;
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173 }
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174
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175 }; // namespace QtHandles