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annotate libgui/src/gui-settings.cc @ 31638:474e184321d3

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move some functions from resource_manager to gui_settings * gui-settings.h, gui-settings.cc (gui_settings::get_default_font_family, gui_settings::get_default_font, gui_settings::reload, gui_settings::check): Rename and move here from resource-manager.h and resource-manager.cc. Change all uses. * resource-manager.h, resource-manager.cc (resource_manager::is_first_run): Delete. * gui-preferences-global.h (global_skip_welcome_wizard): New gui_pref object. * main-window.cc (main_window::main_window): Check this setting to determine whether to display welcome wizard.
author John W. Eaton <jwe@octave.org>
date Sun, 04 Dec 2022 22:56:23 -0500
parents 0645ea65ca6b
children ab33554f97d2
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2019-2022 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 <cmath>
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31
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32 #include <QApplication>
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33 #include <QFile>
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34 #include <QFileInfo>
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35 #include <QFontComboBox>
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36 #include <QFontDatabase>
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37 #include <QMessageBox>
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38 #include <QSettings>
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39 #include <QString>
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40 #include <QStringList>
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41
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42 #include "gui-preferences-cs.h"
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43 #include "gui-preferences-global.h"
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44 #include "gui-settings.h"
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45
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46 #include "oct-env.h"
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47
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48 namespace octave
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49 {
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50 QString gui_settings::file_name (void) const
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51 {
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52 return fileName ();
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53 }
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54
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55 QString gui_settings::directory_name (void) const
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56 {
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57 QFileInfo sfile (fileName ());
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58
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59 return sfile.absolutePath ();
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60 }
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61
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62 QColor gui_settings::get_color_value (const QVariant& def, int mode) const
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63 {
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64 QColor default_color;
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65
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66 // Determine whether the default value in pref is given as
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67 // QPalette::ColorRole or as QColor
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68 if (def.canConvert (QMetaType::QColor))
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69 default_color = def.value<QColor> ();
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70 else
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71 {
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72 // The default colors are given as color roles for
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73 // the application's palette
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74 default_color = QApplication::palette ().color
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75 (static_cast<QPalette::ColorRole> (def.toInt ()));
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76 // FIXME: use value<QPalette::ColorRole> instead of static cast after
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77 // dropping support of Qt 5.4
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78 }
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79
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80 if ((mode == 1) && (default_color != settings_color_no_change))
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81 {
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82 // In second mode, determine the default color from the first mode
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83 qreal h, s, l, a;
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84 default_color.getHslF (&h, &s, &l, &a);
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85 qreal l_new = 1.0-l*0.85;
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86 if (l < 0.3)
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87 l_new = 1.0-l*0.7; // convert darker into lighter colors
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88 default_color.setHslF (h, s, l_new, a);
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89 }
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90
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91 return default_color;
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92 }
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93
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94 QColor gui_settings::color_value (const gui_pref& pref, int mode) const
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95 {
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96 QColor default_color = get_color_value (pref.def, mode);
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97
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98 return value (pref.key + settings_color_modes_ext[mode],
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99 QVariant (default_color)).value<QColor> ();
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100 }
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101
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102 void gui_settings::set_color_value (const gui_pref& pref,
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103 const QColor& color, int mode)
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104 {
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105 int m = mode;
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106 if (m > 1)
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107 m = 1;
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108
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109 setValue (pref.key + settings_color_modes_ext[m], QVariant (color));
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110 }
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111
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112 QString gui_settings::sc_value (const sc_pref& pref) const
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113 {
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114 QKeySequence key_seq = sc_def_value (pref);
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115
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116 // Get the value from the settings where the key sequences are stored
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117 // as strings
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118 return value (sc_group + pref.key, key_seq.toString ()).toString ();
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119 }
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120
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121 QKeySequence gui_settings::sc_def_value (const sc_pref& pref) const
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122 {
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123 QKeySequence key_seq = QKeySequence ();
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124
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125 // Check, which of the elements for the default value in the sc_pref
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126 // structure has a valid value and take this as default. If both
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127 // elements are not valid, leave the key sequence empty
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128 if (pref.def)
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129 key_seq = QKeySequence (pref.def);
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130 else if (pref.def_std != QKeySequence::UnknownKey)
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131 key_seq = QKeySequence (pref.def_std);
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132
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133 return key_seq;
27724
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parents: 27611
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134 }
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parents: 27611
diff changeset
135
31621
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136 void gui_settings::config_icon_theme (void)
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137 {
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138 int theme = global_icon_theme_index.def.toInt ();
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139
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140 // check for new and old setting and use old if required
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141 if (! contains (global_icon_theme_index.key))
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142 {
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143 // new pref does not exist
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144 if (value (global_icon_theme).toBool ())
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145 theme = ICON_THEME_SYSTEM;
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146 else
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147 theme = ICON_THEME_OCTAVE;
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148 setValue (global_icon_theme_index.key, theme); // add new
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149 remove (global_icon_theme.key); // remove deprecated key
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150 }
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151
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152 QIcon::setThemeName (global_all_icon_themes.at (theme));
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153
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154 QStringList icon_fallbacks;
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155
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156 // set the required fallback search paths
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157 switch (theme)
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158 {
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159 case ICON_THEME_SYSTEM:
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160 icon_fallbacks << global_icon_paths.at (ICON_THEME_OCTAVE);
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161 icon_fallbacks << global_icon_paths.at (ICON_THEME_TANGO);
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162 break;
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163 case ICON_THEME_TANGO:
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164 icon_fallbacks << global_icon_paths.at (ICON_THEME_OCTAVE);
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165 break;
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166 case ICON_THEME_OCTAVE:
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167 icon_fallbacks << global_icon_paths.at (ICON_THEME_TANGO);
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168 break;
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169 }
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170
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171 icon_fallbacks << global_icon_paths.at (ICON_THEME_CURSORS);
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172
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173 setValue (global_icon_fallbacks.key, icon_fallbacks);
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174 }
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175
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176 QIcon gui_settings::icon (const QString& icon_name, bool octave_only,
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177 const QString& icon_alt_name)
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178 {
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179 if (octave_only)
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180 return QIcon (global_icon_paths.at (ICON_THEME_OCTAVE) + icon_name + ".png");
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181
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182 if (QIcon::hasThemeIcon (icon_name))
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183 return QIcon (QIcon::fromTheme (icon_name));
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184 else if ((! icon_alt_name.isEmpty ()) && QIcon::hasThemeIcon (icon_alt_name))
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185 return QIcon (QIcon::fromTheme (icon_alt_name));
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186
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187 QStringList icon_fallbacks
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188 = value (global_icon_fallbacks.key).toStringList ();
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189
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190 for (int i = 0; i < icon_fallbacks.length (); i++ )
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191 {
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192 QString icon_file (icon_fallbacks.at (i) + icon_name + ".png");
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193 if (QFile (icon_file).exists ())
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194 return QIcon (icon_file);
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195 }
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196
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197 //QIcon::setThemeName (current_theme);
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198 return QIcon ();
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199 }
31638
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200
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201 QString gui_settings::get_default_font_family (void)
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202 {
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203 QString default_family;
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204
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205 // Get all available fixed width fonts via a font combobox
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206 QFontComboBox font_combo_box;
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207 font_combo_box.setFontFilters (QFontComboBox::MonospacedFonts);
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208 QStringList fonts;
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209
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210 for (int index = 0; index < font_combo_box.count(); index++)
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211 fonts << font_combo_box.itemText(index);
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212
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213 #if defined (Q_OS_MAC)
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214 // Use hard coded default on macOS, since selection of fixed width
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215 // default font is unreliable (see bug #59128).
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216 // Test for macOS default fixed width font
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217 if (fonts.contains (global_mono_font.def.toString ()))
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218 default_family = global_mono_font.def.toString ();
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219 #endif
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220
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221 // If default font is still empty (on all other platforms or
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222 // if macOS default font is not available): use QFontDatabase
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223 if (default_family.isEmpty ())
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224 {
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225 // Get the system's default monospaced font
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226 QFont fixed_font = QFontDatabase::systemFont (QFontDatabase::FixedFont);
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227 default_family = fixed_font.defaultFamily ();
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228
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229 // Since this might be unreliable, test all available fixed width fonts
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230 if (! fonts.contains (default_family))
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231 {
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232 // Font returned by QFontDatabase is not in fixed fonts list.
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233 // Fallback: take first from this list
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234 default_family = fonts[0];
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235 }
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236 }
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237
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238 // Test env variable which has preference
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239 std::string env_default_family = sys::env::getenv ("OCTAVE_DEFAULT_FONT");
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240 if (! env_default_family.empty ())
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241 default_family = QString::fromStdString (env_default_family);
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242
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243 return default_family;
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244 }
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245
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246 QStringList gui_settings::get_default_font (void)
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247 {
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248 QString default_family = get_default_font_family ();
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249
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250 // determine the fefault font size of the system
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251 // FIXME: QApplication::font () does not return the monospace font,
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252 // but the size should be probably near to the monospace font
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253 QFont font = QApplication::font ();
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254
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255 int font_size = font.pointSize ();
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256 if (font_size == -1)
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257 font_size = static_cast <int> (std::floor(font.pointSizeF ()));
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258
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259 // check for valid font size, otherwise take default 10
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260 QString default_font_size = "10";
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261 if (font_size > 0)
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262 default_font_size = QString::number (font_size);
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263
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264 std::string env_default_font_size
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265 = sys::env::getenv ("OCTAVE_DEFAULT_FONT_SIZE");
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266
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267 if (! env_default_font_size.empty ())
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268 default_font_size = QString::fromStdString (env_default_font_size);
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269
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270 QStringList result;
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271 result << default_family;
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272 result << default_font_size;
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273 return result;
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274 }
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275
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276 void gui_settings::reload (void)
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277 {
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278 // Declare some empty options, which may be set at first startup for
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279 // writing them into the newly created settings file
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280 QString custom_editor;
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281 QStringList def_font;
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282
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283 // Check whether the settings file does not yet exist
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284 if (! QFile::exists (file_name ()))
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285 {
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286 // Get the default font (for terminal)
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287 def_font = get_default_font ();
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288
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289 // Get a custom editor defined as env variable
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290 std::string env_default_editor
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291 = sys::env::getenv ("OCTAVE_DEFAULT_EDITOR");
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292
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293 if (! env_default_editor.empty ())
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294 custom_editor = QString::fromStdString (env_default_editor);
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295 }
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296
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297 check ();
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298
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299 // Write some settings that were dynamically determined at first startup
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300
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301 // Custom editor
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302 if (! custom_editor.isEmpty ())
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303 setValue (global_custom_editor.key, custom_editor);
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304
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305 // Default monospace font for the terminal
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306 if (def_font.count () > 1)
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307 {
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308 setValue (cs_font.key, def_font[0]);
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309 setValue (cs_font_size.key, def_font[1].toInt ());
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310 }
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311
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312 // Write the default monospace font into the settings for later use by
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313 // console and editor as fallbacks of their font preferences.
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314 setValue (global_mono_font.key, get_default_font_family ());
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315 }
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316
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317 void gui_settings::check (void)
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318 {
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319 if (status () == QSettings::NoError)
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320 {
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321 // Test usability (force file to be really created)
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322 setValue ("dummy", 0);
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323 sync ();
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324 }
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325
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326 if (! (QFile::exists (file_name ())
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327 && isWritable ()
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328 && status () == QSettings::NoError))
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329 {
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330 QString msg
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331 = QString (QT_TR_NOOP ("Error %1 creating the settings file\n%2\n"
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332 "Make sure you have read and write permissions to\n%3\n\n"
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333 "Octave GUI must be closed now."));
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334
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335 QMessageBox::critical (nullptr,
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336 QString (QT_TR_NOOP ("Octave Critical Error")),
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337 msg.arg (status ())
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338 .arg (file_name ())
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339 .arg (directory_name ()));
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340
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341 exit (1);
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342 }
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343 else
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344 remove ("dummy"); // Remove test entry
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345 }
27611
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346 }