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annotate libgui/graphics/Backend.cc @ 23795:980f39c3ab90

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Use C++11 nullptr rather than 0 in code (bug #51565). * Backend.cc, BaseControl.h, ButtonGroup.cc, CheckBoxControl.cc, Container.cc, ContextMenu.cc, ContextMenu.h, EditControl.cc, Figure.cc, FigureWindow.cc, ListBoxControl.cc, Menu.cc, Menu.h, MouseModeActionGroup.cc, Object.cc, ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc, PushTool.cc, RadioButtonControl.cc, SliderControl.cc, TextControl.cc, ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, ToolBar.h, ToolBarButton.cc, ToolBarButton.h, QTerminal.h, BlockArray.cpp, Emulation.cpp, Filter.cpp, Filter.h, History.cpp, KeyboardTranslator.cpp, QUnixTerminalImpl.h, Screen.cpp, ScreenWindow.cpp, ScreenWindow.h, SelfListener.h, TerminalCharacterDecoder.cpp, TerminalModel.cpp, TerminalView.cpp, TerminalView.h, kpty.cpp, dialog.cc, dialog.h, files-dock-widget.cc, find-files-model.h, file-editor-tab.cc, file-editor.cc, main-window.cc, octave-dock-widget.cc, octave-gui.cc, parser.cc, resource-manager.cc, resource-manager.h, shortcut-manager.cc, shortcut-manager.h, workspace-model.cc, workspace-view.cc, __magick_read__.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h, call-stack.cc, call-stack.h, daspk.cc, dasrt.cc, dassl.cc, det.cc, display.h, error.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc, graphics.in.h, help.cc, input.cc, interpreter.cc, load-path.cc, load-save.cc, ls-hdf5.cc, ls-hdf5.h, ls-mat5.cc, lsode.cc, mex.cc, mxarray.in.h, oct-errno.h, oct-hist.cc, oct-iostrm.h, oct-procbuf.cc, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, oct-tex-parser.in.yy, octave-link.h, pager.cc, pager.h, pr-output.cc, procstream.h, qz.cc, sighandlers.cc, svd.cc, symtab.cc, symtab.h, text-renderer.cc, txt-eng.h, utils.cc, variables.cc, zfstream.cc, zfstream.h, __glpk__.cc, __init_fltk__.cc, __ode15__.cc, audiodevinfo.cc, ccolamd.cc, colamd.cc, dmperm.cc, gzip.cc, symbfact.cc, ov-base-int.cc, ov-base-int.h, ov-base-mat.h, ov-base.cc, ov-base.h, ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-builtin.h, ov-cell.cc, ov-class.cc, ov-complex.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-fcn.cc, ov-fcn.h, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-java.cc, ov-java.h, ov-mex-fcn.cc, ov-oncleanup.cc, ov-range.cc, ov-range.h, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, octave.cc, bp-table.cc, bp-table.h, jit-ir.h, jit-typeinfo.cc, lex.h, profiler.cc, pt-arg-list.cc, pt-array-list.cc, pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-cell.cc, pt-classdef.cc, pt-classdef.h, pt-colon.cc, pt-colon.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-idx.cc, pt-jit.cc, pt-loop.h, pt-mat.cc, pt-select.h, pt-stmt.h, pt-tm-const.h, pt-unop.cc, pt-unop.h, pt.cc, Array-C.cc, Array-d.cc, Array-f.cc, Array-fC.cc, Array-util.cc, Array.cc, Array.h, CMatrix.cc, CSparse.cc, DiagArray2.h, MArray.h, MDiagArray2.h, MatrixType.cc, Sparse.cc, Sparse.h, dMatrix.cc, dSparse.cc, fMatrix.cc, idx-vector.cc, idx-vector.h, DAEFunc.h, DAERTFunc.h, ODEFunc.h, ODESFunc.h, eigs-base.cc, oct-fftw.cc, oct-fftw.h, oct-rand.h, oct-spparms.h, schur.cc, sparse-chol.cc, sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, lo-sysdep.cc, oct-env.h, oct-time.cc, cmd-edit.cc, cmd-edit.h, cmd-hist.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, oct-shlib.cc, oct-shlib.h, oct-sort.cc, oct-sort.h, quit.cc, singleton-cleanup.h, str-vec.cc: Use C++11 nullptr rather than 0 in code (bug #51565).
author Rik <rik@octave.org>
date Tue, 25 Jul 2017 14:54:10 -0700
parents 80c42f4cca13
children 01899bdd2a3a
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) 2011-2017 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
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your 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
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 #if defined (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 <cstdint>
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28
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29 #include <QApplication>
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30 #include <QThread>
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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 ("uibuttongroup")
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59 || go.isa ("uimenu")
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60 || go.isa ("uicontextmenu")
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61 || go.isa ("uitoolbar")
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62 || go.isa ("uipushtool")
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63 || go.isa ("uitoggletool"))
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64 return std::string ("__object__");
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65 else
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66 qCritical ("QtHandles::Backend: no __object__ property known for object "
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67 "of type %s", go.type ().c_str ());
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68
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69 return "";
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70 }
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71
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72 Backend::Backend (void)
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73 : QObject (), base_graphics_toolkit ("qt")
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74 {
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75 ObjectFactory *factory = ObjectFactory::instance ();
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76
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77 connect (this, SIGNAL (createObject (double)),
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78 factory, SLOT (createObject (double)));
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79 }
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80
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81 Backend::~Backend (void)
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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 ("uibuttongroup")
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91 || go.isa ("uimenu")
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92 || go.isa ("uicontextmenu")
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93 || go.isa ("uitoolbar")
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94 || go.isa ("uipushtool")
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95 || go.isa ("uitoggletool"))
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96 {
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97 Logger::debug ("Backend::initialize %s from thread %08x",
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98 go.type ().c_str (), QThread::currentThreadId ());
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99
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100 ObjectProxy *proxy = new ObjectProxy ();
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101 graphics_object gObj (go);
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102
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103 OCTAVE_PTR_TYPE tmp (reinterpret_cast<OCTAVE_INTPTR_TYPE> (proxy));
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104 gObj.get_properties ().set (toolkitObjectProperty (go), tmp);
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105
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106 emit createObject (go.get_handle ().value ());
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107
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108 return true;
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109 }
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110
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111 return false;
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112 }
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113
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114 void
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115 Backend::update (const graphics_object& go, int pId)
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116 {
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117 // Rule out obvious properties we want to ignore.
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118 if (pId == figure::properties::ID___PLOT_STREAM__
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119 || pId == uicontrol::properties::ID___OBJECT__
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120 || pId == uipanel::properties::ID___OBJECT__
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121 || pId == uibuttongroup::properties::ID___OBJECT__
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122 || pId == uimenu::properties::ID___OBJECT__
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123 || pId == uicontextmenu::properties::ID___OBJECT__
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124 || pId == uitoolbar::properties::ID___OBJECT__
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125 || pId == uipushtool::properties::ID___OBJECT__
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126 || pId == uitoggletool::properties::ID___OBJECT__
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127 || pId == base_properties::ID___MODIFIED__)
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128 return;
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129
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130 Logger::debug ("Backend::update %s(%d) from thread %08x",
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131 go.type ().c_str (), pId, QThread::currentThreadId ());
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132
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133 ObjectProxy *proxy = toolkitObjectProxy (go);
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134
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135 if (proxy)
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136 {
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137 if (go.isa ("uicontrol")
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138 && pId == uicontrol::properties::ID_STYLE)
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139 {
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140 // Special case: we need to recreate the control widget
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141 // associated with the octave graphics_object
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142
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143 finalize (go);
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144 initialize (go);
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145 }
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146 else
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147 proxy->update (pId);
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148 }
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149 }
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150
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151 void
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152 Backend::finalize (const graphics_object& go)
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153 {
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154 Logger::debug ("Backend::finalize %s from thread %08x",
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155 go.type ().c_str (), QThread::currentThreadId ());
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156
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157 ObjectProxy *proxy = toolkitObjectProxy (go);
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158
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159 if (proxy)
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160 {
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161 proxy->finalize ();
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162 delete proxy;
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163
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164 graphics_object gObj (go);
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165
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166 gObj.get_properties ().set (toolkitObjectProperty (go), Matrix ());
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167 }
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168 }
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169
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170 void
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171 Backend::redraw_figure (const graphics_object& go) const
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172 {
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173 if (go.get_properties ().is_visible ())
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174 {
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175 ObjectProxy *proxy = toolkitObjectProxy (go);
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176
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177 if (proxy)
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178 proxy->redraw ();
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179 }
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180 }
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181
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182 void
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183 Backend::print_figure (const graphics_object& go,
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184 const std::string& term,
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185 const std::string& file_cmd,
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186 const std::string& /*debug_file*/) const
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187 {
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188 if (go.get_properties ().is_visible ())
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189 {
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190 ObjectProxy *proxy = toolkitObjectProxy (go);
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191
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192 if (proxy)
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193 proxy->print (QString::fromStdString (file_cmd),
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194 QString::fromStdString (term));
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195 }
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196 }
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197
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198 uint8NDArray
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199 Backend::get_pixels (const graphics_object& go) const
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200 {
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201 uint8NDArray retval;
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202
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203 if (go.get_properties ().is_visible () && go.isa ("figure"))
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204 {
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205 ObjectProxy *proxy = toolkitObjectProxy (go);
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206
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207 if (proxy)
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208 retval = proxy->get_pixels ();
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209 }
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210
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211 return retval;
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212 }
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213
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214 Object*
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215 Backend::toolkitObject (const graphics_object& go)
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216 {
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217 ObjectProxy *proxy = toolkitObjectProxy (go);
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218
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219 if (proxy)
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220 return proxy->object ();
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221
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222 return nullptr;
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223 }
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224
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225 ObjectProxy*
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226 Backend::toolkitObjectProxy (const graphics_object& go)
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227 {
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228 if (go)
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229 {
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230 octave_value ov = go.get (toolkitObjectProperty (go));
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231
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232 if (ov.is_defined () && ! ov.isempty ())
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233 {
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234 OCTAVE_INTPTR_TYPE ptr = ov.OCTAVE_PTR_SCALAR ().value ();
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235
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236 return reinterpret_cast<ObjectProxy *> (ptr);
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237 }
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238 }
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239
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240 return nullptr;
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241 }
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242
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243 };