Mercurial > octave
annotate libgui/graphics/Menu.cc @ 29542:3d34b70b5a49
connect many Qt signals and slots without SIGNAL and SLOT macros
This changes switches most code in the libgui/src and libgui/graphics
directories to use the new Qt style of connecting signals and slots
that uses pointers to member functions or function objects instead of
strings to refer to the signal and slot functions. For an
introduction, see https://wiki.qt.io/New_Signal_Slot_Syntax.
There are many connections left to adapt. In some cases, there are
overloaded functions (or default parameters) that need to be handled.
Use of QOverload<> or an anonymous function should fix these. In
others, we are connecting to parent objects where we only have a
pointer to QWidget instead of a specific type of object. To fix
those, we need to either move the code that makes th connection to a
place where the actual types of both objects are known or pass more
specific types as the parent object. In a few cases, there appear to
real mismatches in the types of objects and the signal/slot
functions.
Files affected: ButtonControl.cc, ButtonGroup.cc, ContextMenu.cc,
EditControl.cc, Figure.cc, ListBoxControl.cc, Menu.cc, Object.cc,
ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushTool.cc,
SliderControl.cc, Table.cc, ToggleTool.cc, ToolBar.cc,
annotation-dialog.cc, qt-graphics-toolkit.cc, color-picker.cc,
command-widget.cc, dialog.cc, documentation-bookmarks.cc,
documentation.cc, files-dock-widget.cc, find-files-dialog.cc,
history-dock-widget.cc, interpreter-qobject.cc, file-editor-tab.cc,
file-editor-tab.h, file-editor.cc, find-dialog.cc,
octave-qscintilla.cc, main-window.cc, octave-dock-widget.cc,
octave-qobject.cc, qt-interpreter-events.cc, set-path-dialog.cc,
set-path-model.cc, settings-dialog.cc, shortcut-manager.cc,
tab-bar.cc, variable-editor-model.cc, variable-editor.cc,
welcome-wizard.cc, welcome-wizard.h, workspace-view.cc, and
workspace-view.h.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 16 Apr 2021 23:06:32 -0400 |
parents | 0a5b15007766 |
children | 3eca54836f97 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2011-2021 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
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25 |
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26 #if defined (HAVE_CONFIG_H) |
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27 # include "config.h" |
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28 #endif |
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29 |
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30 #include <QAction> |
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31 #include <QMainWindow> |
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32 #include <QMenu> |
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33 #include <QMenuBar> |
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34 |
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35 #include "Figure.h" |
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36 #include "Menu.h" |
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37 #include "QtHandlesUtils.h" |
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38 |
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39 #include "octave-qobject.h" |
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40 |
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41 namespace QtHandles |
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42 { |
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43 |
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44 static QKeySequence |
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45 accelSequence (const uimenu::properties& up) |
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46 { |
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47 std::string s (up.get_accelerator ()); |
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48 |
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49 if (! s.empty ()) |
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50 { |
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51 char c = s[0]; |
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52 int keyMod = Qt::CTRL; |
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53 |
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54 if (c >= 'A' && c <= 'Z') |
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55 keyMod |= Qt::SHIFT; |
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56 if (c >= 'a' && c <= 'z') |
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57 c -= ('a' - 'A'); |
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58 if (c >= 'A' && c <= 'Z') |
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59 return QKeySequence (keyMod | static_cast<int> (c)); |
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60 } |
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61 |
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62 return QKeySequence (); |
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63 } |
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64 |
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65 Menu* |
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66 Menu::create (octave::base_qobject& oct_qobj, octave::interpreter& interp, |
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67 const graphics_object& go) |
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68 { |
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69 Object *parent_obj = parentObject (interp, go); |
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70 |
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71 if (parent_obj) |
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72 { |
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73 QObject *qObj = parent_obj->qObject (); |
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74 |
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75 if (qObj) |
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76 return new Menu (oct_qobj, interp, go, new QAction (qObj), |
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77 parent_obj); |
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78 } |
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79 |
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80 return nullptr; |
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81 } |
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82 |
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83 Menu::Menu (octave::base_qobject& oct_qobj, octave::interpreter& interp, |
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84 const graphics_object& go, QAction *action, Object *xparent) |
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85 : Object (oct_qobj, interp, go, action), m_parent (nullptr), |
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86 m_separator (nullptr) |
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87 { |
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88 uimenu::properties& up = properties<uimenu> (); |
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89 |
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90 action->setText (Utils::fromStdString (up.get_label ())); |
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91 |
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92 if (up.is_checked ()) |
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93 { |
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94 action->setCheckable (true); |
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95 action->setChecked (up.is_checked ()); |
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96 } |
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97 |
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98 action->setEnabled (up.is_enable ()); |
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99 action->setShortcut (accelSequence (up)); |
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100 action->setVisible (up.is_visible ()); |
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101 |
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102 if (up.is_separator ()) |
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103 { |
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104 m_separator = new QAction (action); |
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105 m_separator->setSeparator (true); |
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106 m_separator->setVisible (up.is_visible ()); |
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107 } |
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108 |
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109 MenuContainer *menuContainer = dynamic_cast<MenuContainer *> (xparent); |
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110 |
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111 if (menuContainer) |
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112 m_parent = menuContainer->menu (); |
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113 |
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114 if (m_parent) |
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115 { |
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116 int pos = static_cast<int> (up.get_position ()); |
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117 |
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118 if (pos <= 0) |
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119 { |
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120 if (m_separator) |
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121 m_parent->insertAction (nullptr, m_separator); |
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122 m_parent->insertAction (nullptr, action); |
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123 |
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124 int count = 0; |
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125 |
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126 for (auto *a : m_parent->actions ()) |
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127 if (! a->isSeparator ()) |
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128 count++; |
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129 |
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130 up.get_property ("position").set |
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131 (octave_value (static_cast<double> (count)), true, false); |
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132 } |
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133 else |
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134 { |
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135 |
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136 int count = 0; |
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137 QAction *before = nullptr; |
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138 |
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139 for (auto *a : m_parent->actions ()) |
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140 { |
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141 if (! a->isSeparator ()) |
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142 { |
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143 count++; |
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144 if (pos <= count) |
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145 { |
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146 before = a; |
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147 break; |
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148 } |
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149 } |
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150 } |
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151 |
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152 if (m_separator) |
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153 m_parent->insertAction (before, m_separator); |
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154 m_parent->insertAction (before, action); |
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155 |
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156 if (before) |
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157 updateSiblingPositions (); |
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158 else |
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159 up.get_property ("position").set |
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160 (octave_value (static_cast<double> (count+1)), true, false); |
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161 } |
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162 } |
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163 |
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164 connect (action, &QAction::triggered, this, &Menu::actionTriggered); |
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165 } |
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166 |
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167 Menu::~Menu (void) |
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168 { } |
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169 |
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170 void |
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171 Menu::update (int pId) |
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172 { |
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173 uimenu::properties& up = properties<uimenu> (); |
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174 QAction *action = qWidget<QAction> (); |
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175 |
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176 switch (pId) |
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177 { |
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178 case uimenu::properties::ID_LABEL: |
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179 action->setText (Utils::fromStdString (up.get_label ())); |
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180 break; |
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181 |
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182 case uimenu::properties::ID_CHECKED: |
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183 if (up.is_checked ()) |
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184 { |
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185 action->setCheckable (true); |
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186 action->setChecked (up.is_checked ()); |
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187 } |
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188 else |
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189 { |
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190 action->setChecked (false); |
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191 action->setCheckable (false); |
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192 } |
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193 break; |
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194 |
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195 case uimenu::properties::ID_ENABLE: |
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196 action->setEnabled (up.is_enable ()); |
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197 break; |
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198 |
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199 case uimenu::properties::ID_ACCELERATOR: |
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200 if (! action->menu ()) |
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201 action->setShortcut (accelSequence (up)); |
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202 break; |
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203 |
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204 case uimenu::properties::ID_SEPARATOR: |
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205 if (up.is_separator ()) |
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206 { |
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207 if (! m_separator) |
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208 { |
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209 m_separator = new QAction (action); |
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210 m_separator->setSeparator (true); |
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211 m_separator->setVisible (up.is_visible ()); |
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212 if (m_parent) |
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213 m_parent->insertAction (action, m_separator); |
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214 } |
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215 } |
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216 else |
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217 { |
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218 if (m_separator) |
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219 delete m_separator; |
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220 m_separator = nullptr; |
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221 } |
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222 break; |
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223 |
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224 case uimenu::properties::ID_VISIBLE: |
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225 action->setVisible (up.is_visible ()); |
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226 if (m_separator) |
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227 m_separator->setVisible (up.is_visible ()); |
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228 break; |
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229 |
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230 case uimenu::properties::ID_POSITION: |
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231 { |
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232 if (m_separator) |
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233 m_parent->removeAction (m_separator); |
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234 |
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235 m_parent->removeAction (action); |
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236 |
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237 int pos = static_cast<int> (up.get_position ()); |
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238 QAction *before = nullptr; |
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239 |
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240 if (pos > 0) |
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241 { |
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242 int count = 0; |
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243 |
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244 for (auto *a : m_parent->actions ()) |
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245 { |
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246 if (! a->isSeparator ()) |
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247 { |
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248 count++; |
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249 if (pos <= count) |
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250 { |
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251 before = a; |
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252 break; |
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253 } |
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254 } |
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255 } |
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256 } |
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257 |
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258 if (m_separator) |
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259 m_parent->insertAction (before, m_separator); |
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260 |
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261 m_parent->insertAction (before, action); |
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262 |
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263 updateSiblingPositions (); |
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264 } |
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265 break; |
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266 |
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267 default: |
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268 Object::update (pId); |
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269 break; |
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270 } |
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271 } |
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272 |
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273 QWidget* |
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274 Menu::menu (void) |
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275 { |
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276 QAction *action = qWidget<QAction> (); |
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277 QMenu *_menu = action->menu (); |
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278 |
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279 if (! _menu) |
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280 { |
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281 _menu = new QMenu (action->parentWidget ()); |
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282 action->setMenu (_menu); |
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283 action->setShortcut (QKeySequence ()); |
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284 connect (_menu, &QMenu::aboutToShow, this, &Menu::actionHovered); |
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285 } |
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286 |
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287 return _menu; |
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288 } |
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289 |
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290 void |
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291 Menu::actionTriggered (void) |
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292 { |
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293 QAction *action = qWidget<QAction> (); |
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294 |
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295 if (action->isCheckable ()) |
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296 action->setChecked (! action->isChecked ()); |
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297 emit gh_callback_event (m_handle, "callback"); |
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298 } |
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299 |
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300 void |
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301 Menu::actionHovered (void) |
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302 { |
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303 emit gh_callback_event (m_handle, "callback"); |
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304 } |
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305 |
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306 void |
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307 Menu::updateSiblingPositions (void) |
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308 { |
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309 if (m_parent) |
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310 { |
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311 double count = 1.0; |
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312 |
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313 for (auto *a : m_parent->actions ()) |
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314 { |
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315 if (! a->isSeparator ()) |
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316 { |
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317 Object *aObj = Object::fromQObject (a); |
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318 |
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319 if (aObj) |
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320 { |
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321 graphics_object go = aObj->object (); |
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322 |
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323 // Probably overkill as a uimenu child can only be another |
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324 // uimenu object. |
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325 if (go.isa ("uimenu")) |
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326 { |
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327 uimenu::properties& up = Utils::properties<uimenu> (go); |
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328 |
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329 up.get_property ("position").set |
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330 (octave_value (count), true, false); |
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331 } |
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332 } |
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333 |
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334 count++; |
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335 } |
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336 } |
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337 } |
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338 } |
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339 |
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340 } |