Mercurial > octave
annotate libgui/graphics/Object.h @ 27376:1952e110d346
Allow Qt graphics callbacks to work again (bug #56857)
* Object.h, Object.cc (Object::do_connections): New virtual method. Do
connections that were previously done in qt_graphics_toolkit::create_object
* qt_graphics_toolkit.cc (qt_graphics_toolkit::create_object): Let
Object::do_connections do the signal/slot connections.
* Figure.h, Figure.cc (Figure::do_connection): Overload Object::do_connections
to also make connections on peer Canvas object.
* Panel.h, Panel.cc (Panel::do_connection): Overload Object::do_connections
to also make connections on peer Canvas object.
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
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date | Thu, 05 Sep 2019 10:13:39 +0200 |
parents | 6b2d20317b26 |
children | 2a506bc4a7af |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2011-2019 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 <https://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 (octave_Object_h) |
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24 #define octave_Object_h 1 |
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25 |
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26 #include <QObject> |
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27 |
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28 #include "event-manager.h" |
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29 #include "graphics.h" |
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30 |
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31 class QObject; |
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32 class QString; |
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33 class QWidget; |
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34 |
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35 namespace QtHandles |
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36 { |
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37 |
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38 class Container; |
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39 class ObjectProxy; |
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40 |
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41 class Object : public QObject |
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42 { |
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43 Q_OBJECT |
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44 |
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45 public: |
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46 Object (const graphics_object& go, QObject *obj = nullptr); |
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47 |
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48 virtual ~Object (void); |
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49 |
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50 base_properties& properties (void) |
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51 { return object ().get_properties (); } |
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52 |
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53 const base_properties& properties (void) const |
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54 { return object ().get_properties (); } |
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55 |
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56 template <typename T> |
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57 typename T::properties& properties (void) |
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58 { |
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59 return dynamic_cast<typename T::properties&> |
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60 (object ().get_properties ()); |
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61 } |
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62 |
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63 template <typename T> |
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64 const typename T::properties& properties (void) const |
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65 { |
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66 return dynamic_cast<const typename T::properties&> |
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67 (object ().get_properties ()); |
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68 } |
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69 |
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70 graphics_object object (void) const; |
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71 |
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72 virtual QObject * qObject (void) { return m_qobject; } |
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73 |
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74 template <typename T> |
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75 T * qWidget (void) { return qobject_cast<T *>(qObject ()); } |
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76 |
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77 virtual Container * innerContainer (void) = 0; |
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78 |
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79 static Object * fromQObject (QObject *obj); |
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80 |
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81 virtual void do_connections (const QObject *receiver, |
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82 const QObject *emitter = nullptr); |
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83 |
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84 signals: |
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85 |
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86 void interpreter_event (const octave::fcn_callback& fcn); |
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87 void interpreter_event (const octave::meth_callback& meth); |
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88 |
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89 void gh_callback_event (const graphics_handle& h, const std::string& name); |
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90 |
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91 void gh_callback_event (const graphics_handle& h, const std::string& name, |
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92 const octave_value& data); |
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93 |
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94 void gh_set_event (const graphics_handle& h, const std::string& name, |
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95 const octave_value& value); |
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96 |
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97 void gh_set_event (const graphics_handle& h, const std::string& name, |
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98 const octave_value& value, bool notify_toolkit); |
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99 |
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100 void gh_set_event (const graphics_handle& h, const std::string& name, |
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101 const octave_value& value, bool notify_toolkit, |
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102 bool redraw_figure); |
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103 |
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104 public slots: |
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105 void slotUpdate (int pId); |
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106 void slotFinalize (void); |
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107 void slotRedraw (void); |
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108 void slotShow (void); |
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109 void slotPrint (const QString& file_cmd, const QString& term); |
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110 |
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111 void objectDestroyed (QObject *obj = nullptr); |
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112 |
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113 protected: |
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114 static Object * parentObject (const graphics_object& go); |
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115 void init (QObject *obj, bool callBase = false); |
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116 |
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117 virtual void update (int pId); |
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118 virtual void finalize (void); |
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119 virtual void redraw (void); |
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120 virtual void show (void); |
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121 virtual void print (const QString& file_cmd, const QString& term); |
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122 |
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123 virtual void beingDeleted (void); |
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124 |
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125 protected: |
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126 |
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127 // Store the graphics object directly so that it will exist when |
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128 // we need it. Previously, it was possible for the graphics |
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129 // toolkit to get a handle to a figure, then have the interpreter |
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130 // thread delete the corresponding object before the graphics |
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131 // toolkit (GUI) thread had a chance to display it. It should be OK |
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132 // to store this object and use it in both threads (graphics_object |
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133 // uses a std::shared_ptr) provided that we protect access with |
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134 // mutex locks. |
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135 graphics_object m_go; |
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136 |
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137 // Handle to the graphics object. This may be redundant now. |
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138 // Also, the whole ObjectProxy thing may not need to store a |
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139 // pointer now? Maybe we can just have a lookup table from figure |
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140 // handle to Object? What does the FLTK toolkit do? Why does |
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141 // this seem to be so complicated? |
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142 graphics_handle m_handle; |
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143 |
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144 QObject *m_qobject; |
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145 }; |
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146 |
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147 } |
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148 |
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149 #endif |