Mercurial > octave
annotate libgui/src/resource-manager.cc @ 26369:0249ba4c9589
Fix static analyzer detected V668 issues (bug #55347).
This patch adresses all V668 (check return value of "new"
against NULL) except the following files:
utils.cc:188 (keep the check in expression for clarity)
* file-editor.cc, resource-manager.cc, shortcut-manager.cc, display.cc,
file-editor-tab.cc, ft-text-renderer.cc, graphics.cc, oct-errno.in.cc,
pager.cc, __init_fltk__.cc, audiodevinfo.cc, oct-parse.yy, oct-fftw.cc,
oct-rand.cc, oct-spparms.cc, oct-env.cc, singleton-cleanup.cc:
Remove checking for nullptr when pointer was created with new() which will
throw an exception.
author | Andreas Weber <octave@josoansi.de> |
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date | Wed, 02 Jan 2019 14:13:59 +0100 |
parents | f73bcf1d0b5a |
children | fff643eb3514 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2011-2018 Jacob Dawid |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software: you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation, either version 3 of the License, or |
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10 (at your option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, see |
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19 <https://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #if defined (HAVE_CONFIG_H) |
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24 # include "config.h" |
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25 #endif |
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26 |
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27 #include <string> |
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28 |
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29 #include <QFile> |
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30 #include <QDir> |
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31 #include <QNetworkProxy> |
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32 #include <QLibraryInfo> |
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33 #include <QMessageBox> |
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34 #if defined (HAVE_QSTANDARDPATHS) |
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35 # include <QStandardPaths> |
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36 #endif |
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37 #include <QTextCodec> |
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38 |
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39 #include "error.h" |
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40 #include "file-ops.h" |
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41 #include "help.h" |
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42 #include "oct-env.h" |
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43 |
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44 #include "defaults.h" |
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45 |
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46 #include "QTerminal.h" |
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47 #include "workspace-model.h" |
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48 #include "variable-editor.h" |
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49 #include "resource-manager.h" |
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50 #include "gui-preferences.h" |
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51 |
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52 namespace octave |
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53 { |
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54 resource_manager *resource_manager::instance = nullptr; |
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55 |
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56 static QString |
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57 default_qt_settings_file (void) |
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58 { |
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59 std::string dsf = sys::env::getenv ("OCTAVE_DEFAULT_QT_SETTINGS"); |
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60 |
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61 if (dsf.empty ()) |
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62 dsf = (config::oct_etc_dir () |
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63 + sys::file_ops::dir_sep_str () |
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64 + "default-qt-settings"); |
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65 |
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66 return QString::fromStdString (dsf); |
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67 } |
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68 |
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69 resource_manager::resource_manager (void) |
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70 : m_settings_directory (), m_settings_file (), m_settings (nullptr), |
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71 m_default_settings (nullptr) |
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72 { |
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73 #if defined (HAVE_QSTANDARDPATHS) |
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74 QString home_path |
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75 = QStandardPaths::writableLocation (QStandardPaths::HomeLocation); |
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76 #else |
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77 QString home_path |
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78 = QDesktopServices::storageLocation (QDesktopServices::HomeLocation); |
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79 #endif |
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80 |
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81 m_settings_directory = home_path + "/.config/octave"; |
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82 |
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83 m_settings_file = m_settings_directory + "/qt-settings"; |
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84 |
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85 m_default_settings = new QSettings (default_qt_settings_file (), |
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86 QSettings::IniFormat); |
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87 } |
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88 |
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89 resource_manager::~resource_manager (void) |
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90 { |
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91 delete m_settings; |
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92 delete m_default_settings; |
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93 } |
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94 |
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95 QString resource_manager::get_gui_translation_dir (void) |
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96 { |
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97 // get environment variable for the locale dir (e.g. from run-octave) |
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98 std::string dldir = sys::env::getenv ("OCTAVE_LOCALE_DIR"); |
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99 if (dldir.empty ()) |
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100 dldir = config::oct_locale_dir (); // env-var empty, load the default location |
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101 return QString::fromStdString (dldir); |
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102 } |
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103 |
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104 void resource_manager::config_translators (QTranslator *qt_tr, |
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105 QTranslator *qsci_tr, |
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106 QTranslator *gui_tr) |
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107 { |
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108 bool loaded; |
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109 |
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110 QString qt_trans_dir |
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111 = QLibraryInfo::location (QLibraryInfo::TranslationsPath); |
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112 |
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113 QString language = "SYSTEM"; // take system language per default |
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114 |
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115 QSettings *settings = resource_manager::get_settings (); |
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116 |
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117 if (settings) |
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118 { |
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119 // get the locale from the settings if already available |
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120 language = settings->value ("language", "SYSTEM").toString (); |
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121 } |
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122 |
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123 if (language == "SYSTEM") |
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124 language = QLocale::system ().name (); // get system wide locale |
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125 |
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126 // load the translator file for qt strings |
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127 loaded = qt_tr->load ("qt_" + language, qt_trans_dir); |
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128 |
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129 if (! loaded) // try lower case |
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130 qt_tr->load ("qt_" + language.toLower (), qt_trans_dir); |
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131 |
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132 // load the translator file for qscintilla settings |
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133 loaded = qsci_tr->load ("qscintilla_" + language, qt_trans_dir); |
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134 |
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135 if (! loaded) // try lower case |
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136 qsci_tr->load ("qscintilla_" + language.toLower (), qt_trans_dir); |
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137 |
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138 // load the translator file for gui strings |
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139 gui_tr->load (language, get_gui_translation_dir ()); |
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140 } |
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141 |
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142 QStringList resource_manager::storage_class_names (void) |
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143 { |
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144 return workspace_model::storage_class_names (); |
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145 } |
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146 |
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147 QList<QColor> resource_manager::storage_class_default_colors (void) |
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148 { |
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149 return workspace_model::storage_class_default_colors (); |
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150 } |
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151 |
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152 QStringList resource_manager::terminal_color_names (void) |
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153 { |
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154 return QTerminal::color_names (); |
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155 } |
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156 |
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157 QList<QColor> resource_manager::terminal_default_colors (void) |
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158 { |
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159 return QTerminal::default_colors (); |
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160 } |
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161 |
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162 QList<QColor> resource_manager::varedit_default_colors(void) |
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163 { |
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164 return variable_editor::default_colors (); |
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165 } |
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166 |
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167 QStringList resource_manager::varedit_color_names(void) |
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168 { |
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169 return variable_editor::color_names (); |
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170 } |
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171 |
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172 bool resource_manager::instance_ok (void) |
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173 { |
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174 bool retval = true; |
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175 |
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176 if (! instance) |
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177 instance = new resource_manager (); |
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178 |
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179 return retval; |
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180 } |
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181 |
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182 QSettings * resource_manager::do_get_settings (void) const |
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183 { |
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184 return m_settings; |
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185 } |
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186 |
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187 QSettings * resource_manager::do_get_default_settings (void) const |
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188 { |
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189 return m_default_settings; |
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190 } |
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191 |
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192 QString resource_manager::do_get_settings_directory (void) |
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193 { |
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194 return m_settings_directory; |
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195 } |
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196 |
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197 QString resource_manager::do_get_settings_file (void) |
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198 { |
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199 return m_settings_file; |
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200 } |
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201 |
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202 QString resource_manager::do_get_default_font_family (void) |
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203 { |
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204 // Get the default monospaced font |
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205 #if defined (HAVE_QFONT_MONOSPACE) |
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206 QFont fixed_font; |
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207 fixed_font.setStyleHint (QFont::Monospace); |
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208 QString default_family = fixed_font.defaultFamily (); |
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209 #else |
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210 QString default_family = global_font_family; |
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211 #endif |
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212 |
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213 std::string env_default_family = sys::env::getenv ("OCTAVE_DEFAULT_FONT"); |
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214 if (! env_default_family.empty ()) |
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215 default_family = QString::fromStdString (env_default_family); |
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216 |
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217 return default_family; |
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218 } |
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219 |
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220 void resource_manager::do_reload_settings (void) |
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221 { |
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222 QString default_family = do_get_default_font_family (); |
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223 |
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224 if (! QFile::exists (m_settings_file)) |
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225 { |
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226 QDir ("/").mkpath (m_settings_directory); |
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227 QFile qt_settings (default_qt_settings_file ()); |
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228 |
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229 if (! qt_settings.open (QFile::ReadOnly)) |
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230 return; |
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231 |
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232 QTextStream in (&qt_settings); |
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233 QString settings_text = in.readAll (); |
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234 qt_settings.close (); |
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235 |
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236 default_family = do_get_default_font_family (); |
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237 |
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238 QString default_font_size = "10"; |
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239 |
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240 std::string env_default_font_size |
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241 = sys::env::getenv ("OCTAVE_DEFAULT_FONT_SIZE"); |
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242 |
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243 if (! env_default_font_size.empty ()) |
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244 default_font_size = QString::fromStdString (env_default_font_size); |
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245 |
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246 // Get the default custom editor |
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247 #if defined (Q_OS_WIN32) |
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248 QString custom_editor = "notepad++ -n%l %f"; |
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249 #else |
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250 QString custom_editor = "emacs +%l %f"; |
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251 #endif |
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252 |
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253 std::string env_default_editor |
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254 = sys::env::getenv ("OCTAVE_DEFAULT_EDITOR"); |
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255 |
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256 if (! env_default_editor.empty ()) |
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257 custom_editor = QString::fromStdString (env_default_editor); |
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258 |
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259 // Replace placeholders |
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260 settings_text.replace ("__default_custom_editor__", custom_editor); |
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261 settings_text.replace ("__default_font__", default_family); |
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262 settings_text.replace ("__default_font_size__", default_font_size); |
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263 |
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264 QFile user_settings (m_settings_file); |
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265 |
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266 if (! user_settings.open (QIODevice::WriteOnly)) |
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267 return; |
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268 |
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269 QTextStream out (&user_settings); |
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270 |
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271 out << settings_text; |
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272 |
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273 user_settings.close (); |
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274 } |
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275 |
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276 do_set_settings (m_settings_file); |
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277 |
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278 // Write the default monospace font into the settings for later use by |
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279 // console and editor as fallbacks of their font prefernces. |
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280 if (m_settings) |
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281 m_settings->setValue (global_mono_font.key, default_family); |
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282 |
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283 } |
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284 |
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285 void resource_manager::do_set_settings (const QString& file) |
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286 { |
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287 delete m_settings; |
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288 m_settings = new QSettings (file, QSettings::IniFormat); |
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289 |
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290 if (! (QFile::exists (m_settings->fileName ()) |
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291 && m_settings->isWritable () |
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292 && m_settings->status () == QSettings::NoError)) |
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293 { |
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294 QString msg = QString (QT_TR_NOOP ( |
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295 "The settings file\n%1\n" |
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296 "does not exist and can not be created.\n" |
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297 "Make sure you have read and write permissions to\n%2\n\n" |
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298 "Octave GUI must be closed now.")); |
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299 QMessageBox::critical (nullptr, QString (QT_TR_NOOP ("Octave Critical Error")), |
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300 msg.arg (do_get_settings_file ()).arg (do_get_settings_directory ())); |
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301 exit (1); |
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302 } |
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303 } |
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304 |
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305 bool resource_manager::do_update_settings_key (const QString& old_key, |
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306 const QString& new_key) |
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307 { |
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308 if (m_settings->contains (old_key)) |
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309 { |
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310 QVariant preference = m_settings->value (old_key); |
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311 m_settings->setValue (new_key, preference); |
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312 m_settings->remove (old_key); |
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313 return true; |
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314 } |
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315 |
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316 return false; |
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317 } |
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318 |
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319 bool resource_manager::do_is_first_run (void) const |
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320 { |
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321 return ! QFile::exists (m_settings_file); |
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322 } |
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323 |
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324 void resource_manager::do_update_network_settings (void) |
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325 { |
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326 if (m_settings) |
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327 { |
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328 QNetworkProxy::ProxyType proxyType = QNetworkProxy::NoProxy; |
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329 |
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330 if (m_settings->value ("useProxyServer",false).toBool ()) |
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331 { |
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332 QString proxyTypeString = m_settings->value ("proxyType").toString (); |
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333 |
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334 if (proxyTypeString == "Socks5Proxy") |
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335 proxyType = QNetworkProxy::Socks5Proxy; |
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336 else if (proxyTypeString == "HttpProxy") |
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337 proxyType = QNetworkProxy::HttpProxy; |
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338 } |
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339 |
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340 QNetworkProxy proxy; |
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341 |
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342 proxy.setType (proxyType); |
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343 proxy.setHostName (m_settings->value ("proxyHostName").toString ()); |
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344 proxy.setPort (m_settings->value ("proxyPort",80).toInt ()); |
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345 proxy.setUser (m_settings->value ("proxyUserName").toString ()); |
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346 proxy.setPassword (m_settings->value ("proxyPassword").toString ()); |
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347 |
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348 QNetworkProxy::setApplicationProxy (proxy); |
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349 } |
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350 else |
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351 { |
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352 // FIXME: Is this an error? If so, what should we do? |
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353 } |
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354 } |
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355 |
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356 QIcon resource_manager::do_icon (const QString& icon_name, bool fallback) |
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357 { |
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358 // If system icon theme is not desired, take own icon files |
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359 if (! m_settings->value (global_icon_theme.key, global_icon_theme.def).toBool ()) |
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360 return QIcon (":/actions/icons/" + icon_name + ".png"); |
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361 |
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362 // Use system icon theme with own files as fallback except the fallback is |
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363 // explicitly disabled (fallback=false) |
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364 if (fallback) |
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365 return QIcon::fromTheme (icon_name, |
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366 QIcon (":/actions/icons/" + icon_name + ".png")); |
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367 else |
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368 return QIcon::fromTheme (icon_name); |
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369 } |
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370 |
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371 // get a list of all available encodings |
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372 void resource_manager::do_get_codecs (QStringList *codecs) |
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373 { |
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374 // get the codec name for each mib |
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375 QList<int> all_mibs = QTextCodec::availableMibs (); |
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376 foreach (int mib, all_mibs) |
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377 { |
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378 QTextCodec *c = QTextCodec::codecForMib (mib); |
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379 codecs->append (c->name ().toUpper ()); |
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380 } |
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381 |
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382 // If on windows append SYSTEM even if not supported |
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383 if (ed_default_enc.def.toString () == "SYSTEM") |
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384 codecs->append (ed_default_enc.def.toString ()); |
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385 |
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386 // Clean up and sort list of codecs |
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387 codecs->removeDuplicates (); |
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388 qSort (*codecs); |
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389 } |
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390 |
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391 // initialize a given combo box with available text encodings |
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392 void resource_manager::do_combo_encoding (QComboBox *combo, QString current) |
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393 { |
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394 QStringList all_codecs; |
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395 do_get_codecs (&all_codecs); |
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396 |
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397 // get the value from the settings file if no current encoding is given |
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398 QString enc = current; |
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399 |
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400 // Check for valid codec for the default. Allow "SYSTEM" even no valid |
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401 // codec exists, since codecForLocale will be chosen in this case |
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402 bool default_exists = false; |
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403 if (QTextCodec::codecForName (ed_default_enc.def.toString ().toLatin1 ()) |
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404 || (ed_default_enc.def.toString () == "SYSTEM")) |
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405 default_exists = true; |
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406 |
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407 if (enc.isEmpty ()) |
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408 { |
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409 enc = m_settings->value (ed_default_enc.key, ed_default_enc.def).toString (); |
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410 |
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411 if (enc.isEmpty ()) // still empty? |
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412 { |
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413 if (default_exists) |
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414 enc = ed_default_enc.def.toString (); |
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415 else |
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416 enc = QTextCodec::codecForLocale ()->name ().toUpper (); |
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417 } |
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418 } |
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419 |
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420 // fill the combo box |
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421 foreach (QString c, all_codecs) |
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422 combo->addItem (c); |
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423 |
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424 // prepend the default item |
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425 combo->insertSeparator (0); |
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426 if (default_exists) |
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427 combo->insertItem (0, ed_default_enc.def.toString ()); |
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428 else |
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429 combo->insertItem (0, QTextCodec::codecForLocale ()->name ().toUpper ()); |
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430 |
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431 // select the default or the current one |
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432 int idx = combo->findText (enc, Qt::MatchExactly); |
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433 if (idx >= 0) |
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434 combo->setCurrentIndex (idx); |
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435 else |
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436 combo->setCurrentIndex (0); |
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437 |
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438 combo->setMaxVisibleItems (12); |
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439 } |
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440 } |