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annotate libgui/src/dw-main-window.cc @ 25411:ad3d018e595f

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provide shortcuts for switching between widgets in var. editor (bug #53002) * dw-main-window.cc (dw_main_window): add new actions for switching to next/previous widget, collect all actions that are required in floating widgets in a list; (notice_settings): set the shortcuts for the new actions; (request_close_file, request_close_other_files, request_close_all_files): renamed, dropping term file, and using the new class variable storing the list of current dock widgets; (request_switch_left, request_switch_right): new slots for the new actions; (request_switch): function with common part for switching widgets; (event): re-implementation of the event method, updating the list of all dock widgets when widget was added or removed, and adding actions to floating widgets when floating status has changed. * dw_main-window.h: re-implemented event, new actions wit new slots for switching between widgets, new class variables for widget list and list of actions for floating widgets
author Torsten <mttl@mailbox.org>
date Sat, 26 May 2018 20:50:46 +0200
parents a78e5b8d5ee7
children 00f796120a6d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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25398
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1 /*
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2
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3 Copyright (C) 2013-2018 Torsten <mttl@mailbox.org>
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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 /* This is the main window derived from QMainWindow for being used
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24 as the main window in dock widgets like the variable editor or
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25 the file editor
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26 */
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27
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28 #if defined (HAVE_CONFIG_H)
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29 # include "config.h"
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30 #endif
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31
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32 #include <QMenu>
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33 #include <QDockWidget>
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34
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35 #include "resource-manager.h"
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36 #include "shortcut-manager.h"
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37 #include "dw-main-window.h"
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38
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39 namespace octave
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40 {
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41
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42 dw_main_window::dw_main_window (QWidget *p)
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43 : QMainWindow (p)
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44 {
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45 // Adding the actions for closing the dock widgets
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46 m_close_action
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47 = add_action (nullptr,
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48 resource_manager::icon ("window-close",false),
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49 tr ("&Close"),
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50 SLOT (request_close ()), this);
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51
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52 m_close_all_action
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53 = add_action (nullptr,
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54 resource_manager::icon ("window-close",false),
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55 tr ("Close &All"),
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56 SLOT (request_close_all ()), this);
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57
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58 m_close_others_action
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59 = add_action (nullptr,
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60 resource_manager::icon ("window-close",false),
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61 tr ("Close &Other"),
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62 SLOT (request_close_other ()), this);
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63
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64 m_switch_left_action
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65 = add_action (nullptr, QIcon (), tr ("Switch to &Left Widget"),
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66 SLOT (request_switch_left ()), this);
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67
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68 m_switch_right_action
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69 = add_action (nullptr, QIcon (), tr ("Switch to &Right Widget"),
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70 SLOT (request_switch_right ()), this);
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71
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72 // The list of actions for floating widgets
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73 m_actions_list << m_close_action;
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74 m_actions_list << m_close_others_action;
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75 m_actions_list << m_close_all_action;
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76 m_actions_list << m_switch_left_action;
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77 m_actions_list << m_switch_right_action;
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78
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79 notice_settings (resource_manager::get_settings ());
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80 }
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81
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82
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83 // Re-implementing the popup menu of the main window
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84 QMenu *dw_main_window::createPopupMenu ()
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85 {
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86 QList<QAction *> new_actions = QList<QAction *> ();
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87 new_actions.append (m_close_action);
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88 new_actions.append (m_close_others_action);
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89 new_actions.append (m_close_all_action);
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90
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91 QMenu *menu = QMainWindow::createPopupMenu ();
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92 QList<QAction *> actions = menu->actions();
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93
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94 if (actions.length () > 0)
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95 {
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96 QAction *sep = menu->insertSeparator (actions.at (0));
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97 menu->insertActions (sep, new_actions);
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98 }
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99 else
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100 menu->addActions (new_actions);
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101
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102 return menu;
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103 }
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104
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105
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106 // Adding an action to the main window
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107 QAction * dw_main_window::add_action (QMenu *menu, const QIcon& icon,
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108 const QString& text, const char *member,
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109 QWidget *receiver)
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110 {
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111 QAction *a;
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112 QWidget *r = this;
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113
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114 if (receiver != nullptr)
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115 r = receiver;
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116
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117 if (menu)
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118 a = menu->addAction (icon, text, r, member);
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119 else
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120 {
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121 a = new QAction (icon, text, this);
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122 a->setEnabled (true);
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123 connect (a, SIGNAL (triggered ()), r, member);
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124 }
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125
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126 addAction (a); // important for shortcut context
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127 a->setShortcutContext (Qt::WidgetWithChildrenShortcut);
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128
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129 return a;
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130 }
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131
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132 // Update the settings
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133 void dw_main_window::notice_settings (const QSettings*)
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134 {
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135 shortcut_manager::set_shortcut (m_close_action, "editor_file:close");
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136 shortcut_manager::set_shortcut (m_close_all_action, "editor_file:close_all");
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137 shortcut_manager::set_shortcut (m_close_others_action, "editor_file:close_other");
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138
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139 shortcut_manager::set_shortcut (m_switch_left_action, "editor_tabs:switch_left_tab");
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140 shortcut_manager::set_shortcut (m_switch_right_action, "editor_tabs:switch_right_tab");
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141 }
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142
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143
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144 // Slots for handling actions
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145
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146 // Close current widget
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147 void dw_main_window::request_close ()
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148 {
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149 for (int i = 0; i < m_dw_list.length (); i++)
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150 {
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151 if (m_dw_list.at (i)->hasFocus ())
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152 {
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153 m_dw_list.at (i)->close ();
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154 if (i > 0)
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155 m_dw_list.at (i-1)->setFocus ();
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156 break;
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157 }
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158 }
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159 }
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160
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161 // Close other widgets
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162 void dw_main_window::request_close_other ()
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163 {
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164 for (int i = m_dw_list.length () - 1; i >= 0; i--)
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165 {
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166 if (! m_dw_list.at (i)->hasFocus ())
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167 m_dw_list.at (i)->close ();
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168 }
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169 }
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170
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171 // Close all widgets
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172 void dw_main_window::request_close_all ()
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173 {
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174 for (int i = m_dw_list.length () - 1; i >= 0; i--)
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175 m_dw_list.at (i)->close ();
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176 }
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177
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178 // Switch to left widget
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179 void dw_main_window::request_switch_left ()
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180 {
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181 request_switch (-1);
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182 }
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183
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184 // Switch to right widget
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185 void dw_main_window::request_switch_right ()
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186 {
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187 request_switch (1);
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188 }
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189
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190 // Switch to left/right widget
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191 void dw_main_window::request_switch (int direction)
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192 {
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193 int active = -1, next;
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194
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195 for (int i = m_dw_list.length () - 1; i >= 0; i--)
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196 {
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197 if (m_dw_list.at (i)->hasFocus ())
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198 {
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199 active = i;
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200 break;
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201 }
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202 }
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203
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204 if (active == -1)
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205 return;
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206
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207 if (direction == -1 && active == 0)
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208 next = m_dw_list.length () - 1;
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209 else if (direction == 1 && active == m_dw_list.length () - 1)
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210 next = 0;
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211 else
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212 next = active + direction;
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213
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214 m_dw_list.at (next)->raise ();
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215 m_dw_list.at (next)->activateWindow ();
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216 m_dw_list.at (next)->setFocus ();
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217 }
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218
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219
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220 // Reimplemented Event
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221 bool dw_main_window::event (QEvent *ev)
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222 {
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223 if (ev->type () == QEvent::ChildAdded ||
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224 ev->type () == QEvent::ChildRemoved)
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225 {
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226 // Adding or Removing a child indicates that a dock widget was
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227 // created or removed.
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228 // In all cases, the list of dock widgets has to be updated.
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229 m_dw_list = findChildren<QDockWidget *>();
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230 }
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231
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232 if (ev->type () == QEvent::StyleChange)
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233 {
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234 // This might indicate un- or re-docking a widget: Make sure
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235 // floating widget get a copy of our actions
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236 for (int i = m_dw_list.length () - 1; i >= 0; i--)
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237 {
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238 // First remove possibly existing actions
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239 for (int j = m_actions_list.length () - 1; j >0; j--)
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240 m_dw_list.at (i)->removeAction (m_actions_list.at (j));
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241
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242 // Then add our actions for floating widgets
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243 if (m_dw_list.at (i)->isFloating ())
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244 m_dw_list.at (i)->addActions (m_actions_list);
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245 }
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246 }
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247
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248 return QMainWindow::event (ev);
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249 }
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250
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251 }
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252