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maint: Remove trailing spaces from code. * NEWS.10.md, files-dock-widget.cc, data.cc, uifigure.m, assert.m: Remove trailing spaces from code.
author Rik <rik@octave.org>
date Fri, 14 Jun 2024 16:05:56 -0700
parents 7f18c537e101
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2018-2024 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 // This file implements a tab bar derived from QTabBar with a contextmenu
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27 // and possibility to close a tab via double-left or middle mouse click.
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28
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29 #if defined (HAVE_CONFIG_H)
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30 # include "config.h"
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31 #endif
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32
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33 #include "tab-bar.h"
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34
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35 OCTAVE_BEGIN_NAMESPACE(octave)
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36
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37 //
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38 // Reimplemented QTabbar
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39 //
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40
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41 tab_bar::tab_bar (QWidget *p)
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42 : QTabBar (p), m_context_menu (new QMenu (this))
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43 { }
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44
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45 void
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46 tab_bar::set_rotated (int rotated)
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47 {
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48 m_rotated = rotated;
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49 }
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50
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51 // slots for tab navigation
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52 void
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53 tab_bar::switch_left_tab ()
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54 {
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55 switch_tab (-1);
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56 }
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57
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58 void
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59 tab_bar::switch_right_tab ()
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60 {
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61 switch_tab (1);
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62 }
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63
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64 void
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65 tab_bar::move_tab_left ()
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66 {
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67 switch_tab (-1, true);
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68 }
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69
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70 void
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71 tab_bar::move_tab_right ()
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72 {
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73 switch_tab (1, true);
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74 }
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75
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76 void
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77 tab_bar::switch_tab (int direction, bool movetab)
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78 {
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79 int tabs = count ();
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80
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81 if (tabs < 2)
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82 return;
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83
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84 int old_pos = currentIndex ();
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85 int new_pos = currentIndex () + direction;
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86
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87 if (new_pos < 0 || new_pos >= tabs)
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88 new_pos = new_pos - direction*tabs;
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89
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90 if (movetab)
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91 {
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92 moveTab (old_pos, new_pos);
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93 setCurrentIndex (old_pos);
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94 setCurrentIndex (new_pos);
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95 }
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96 else
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97 setCurrentIndex (new_pos);
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98 }
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99
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100 void
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101 tab_bar::sort_tabs_alph ()
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102 {
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103 QString current_title = tabText (currentIndex ());
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104 int tab_with_focus = 0;
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105
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106 // Get all tab title and sort
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107 QStringList tab_texts;
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108
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109 for (int i = 0; i < count (); i++)
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110 tab_texts.append (tabText (i));
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111
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112 tab_texts.sort ();
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113
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114 // Move tab into the order of the generated string list
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115 for (int title = 0; title < tab_texts.count (); title++)
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116 {
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117 // Target tab is same as place of title in QStringList.
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118 // Find index of next title in string list, leaving out the
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119 // tabs (or titles) that were already moved.
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120 for (int tab = title; tab < count (); tab++)
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121 {
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122 if (tabText (tab) == tab_texts.at (title))
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123 {
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124 // Index of next tile found, so move tab into next position
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125 moveTab (tab, title);
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126
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127 if (tab_texts.at (title) == current_title)
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128 tab_with_focus = title;
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129
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130 break;
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131 }
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132 }
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133 }
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134
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135 setCurrentIndex (tab_with_focus);
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136 }
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137
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138 // The following two functions are reimplemented for allowing rotated
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139 // tabs and are based on this answer on stack overflow:
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140 // https://stackoverflow.com/a/50579369
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141
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142 // Reimplemented size hint allowing rotated tabs
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143 QSize
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144 tab_bar::tabSizeHint (int idx) const
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145 {
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146 QSize s = QTabBar::tabSizeHint (idx);
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147 if (m_rotated)
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148 s.transpose ();
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149
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150 return s;
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151 }
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152
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153 // Reimplemented paint event allowing rotated tabs
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154 void
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155 tab_bar::paintEvent (QPaintEvent *e)
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156 {
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157 // Just process the original event if not rotated
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158 if (! m_rotated)
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159 return QTabBar::paintEvent (e);
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160
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161 // Process the event for rotated tabs
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162 QStylePainter painter (this);
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163 QStyleOptionTab opt;
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164
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165 for (int idx = 0; idx < count (); idx++)
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166 {
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167 initStyleOption (&opt, idx);
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168 painter.drawControl (QStyle::CE_TabBarTabShape, opt);
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169 painter.save ();
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170
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171 QSize s = opt.rect.size ();
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172 s.transpose ();
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173 QRect rect (QPoint (), s);
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174 rect.moveCenter (opt.rect.center ());
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175 opt.rect = rect;
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176
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177 QPoint p = tabRect (idx).center ();
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178 painter.translate (p);
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179 painter.rotate (-m_rotated*90);
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180 painter.translate (-p);
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181 painter.drawControl (QStyle::CE_TabBarTabLabel, opt);
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182 painter.restore ();
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183 }
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184 }
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185
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186 // Reimplement mouse event for filtering out the desired mouse clicks
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187 void
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188 tab_bar::mousePressEvent (QMouseEvent *me)
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189 {
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190 QPoint click_pos;
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191 int clicked_idx = -1;
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192
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193 // detect the tab where the click occurred
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194 for (int i = 0; i < count (); i++)
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195 {
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196 click_pos = mapToGlobal (me->pos ());
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197 if (tabRect (i).contains (mapFromGlobal (click_pos)))
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198 {
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199 clicked_idx = 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 a tab was clicked
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205 if (clicked_idx >= 0)
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206 {
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207 int current_idx = currentIndex ();
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208 int current_count = count ();
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209
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210 // detect the mouse click
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211 if ((me->type () == QEvent::MouseButtonDblClick
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212 && me->button () == Qt::LeftButton)
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213 || (me->type () != QEvent::MouseButtonDblClick
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214 && me->button () == Qt::MiddleButton))
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215 {
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216 // Middle click or double click -> close the tab
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217 // Make the clicked tab the current one and close it
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218 setCurrentIndex (clicked_idx);
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219 Q_EMIT close_current_tab_signal (true);
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220 // Was the closed tab before or after the previously current tab?
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221 // According to the result, use previous index or reduce it by one
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222 if (current_idx - clicked_idx > 0)
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223 setCurrentIndex (current_idx - 1);
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224 else if (current_idx - clicked_idx < 0)
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225 setCurrentIndex (current_idx);
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226 }
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227 else if (me->type () != QEvent::MouseButtonDblClick
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228 && me->button () == Qt::RightButton)
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229 {
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230 // Right click, show context menu
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231 setCurrentIndex (clicked_idx);
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232
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233 // Fill context menu with actions for selecting current tabs
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234 m_ctx_actions = m_context_menu->actions (); // Copy of basic actions
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235 QMenu ctx_menu; // The menu actually used
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236 connect (&ctx_menu, &QMenu::triggered,
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237 this, &tab_bar::ctx_menu_activated);
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238
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239 for (int i = count () - 1; i >= 0; i--)
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240 {
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241 // Prepend an action for each tab
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242 QAction *a = new QAction (tabIcon (i), tabText (i), &ctx_menu);
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243 m_ctx_actions.prepend (a);
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244 }
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245 // Add all actions to our menu
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246 ctx_menu.insertActions (nullptr, m_ctx_actions);
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247
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248 if (! ctx_menu.exec (click_pos))
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249 {
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250 // No action selected, back to previous tab
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251 setCurrentIndex (current_idx);
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252 }
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253 else if (count () < current_count)
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254 {
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255 // A tab was closed:
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256 // Was the possibly only closed tab before or after the
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257 // previously current tab? According to the result, use previous
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258 // index or reduce it by one. Also prevent using a too large
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259 // index if other or all files were closed.
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260 int new_idx = count () - 1;
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261 if (new_idx > 0)
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262 {
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263 if (current_idx - clicked_idx > 0)
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264 new_idx = current_idx - 1;
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265 else if (current_idx - clicked_idx < 0)
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266 new_idx = current_idx;
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267 }
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268 if (new_idx >= 0)
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269 setCurrentIndex (new_idx);
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270 }
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271 }
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272 else
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273 {
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274 // regular handling of the mouse event
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275 QTabBar::mousePressEvent (me);
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276 }
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277 }
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278 else
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279 {
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280 // regular handling of the mouse event
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281 QTabBar::mousePressEvent (me);
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282 }
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283 }
29465
0e9319d40977 add all open tabs to the context menu of the editor tabs (bug #60276)
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284
31648
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285 // Slot if a menu entry in the context menu is activated
32592
094a296b3ba1 maint: C++ style check for libgui/ directory.
Rik <rik@octave.org>
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286 void
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287 tab_bar::ctx_menu_activated (QAction *a)
31648
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288 {
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289 // If the index of the activated action is in the range of
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290 // the current tabs, set the related current tab. The basic actions
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291 // are handled by the editor
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292 int i = m_ctx_actions.indexOf (a);
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293 if ((i > -1) && (i < count ()))
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294 setCurrentIndex (i);
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295 }
29465
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Torsten Lilge <ttl-octave@mailbox.org>
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296
31646
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297 OCTAVE_END_NAMESPACE(octave)