Mercurial > hg > forks > UniversalIndentGUI

annotate src/UiGuiIniFileParser.cpp @ 755:302411a51c00

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[fix] Bug ID 3006513: Calling the default constructor out of another constructor is forbidden and does not compile with recent GCC versions. Fixed this by introducing an init function. git-svn-id: svn://svn.code.sf.net/p/universalindent/code/trunk@1032 59b1889a-e5ac-428c-b0c7-476e01d41282
author thomas_-_s <thomas_-_s@59b1889a-e5ac-428c-b0c7-476e01d41282>
date Mon, 11 Apr 2011 20:27:30 +0000
parents ac165b6ae67e
children f3631db17328
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1 /***************************************************************************
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2 * Copyright (C) 2006-2010 by Thomas Schweitzer *
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3 * thomas-schweitzer(at)arcor.de *
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4 * *
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5 * This program is free software; you can redistribute it and/or modify *
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6 * it under the terms of the GNU General Public License version 2.0 as *
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7 * published by the Free Software Foundation. *
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8 * *
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9 * This program is distributed in the hope that it will be useful, *
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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12 * GNU General Public License for more details. *
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13 * *
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14 * You should have received a copy of the GNU General Public License *
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15 * along with this program in the file LICENSE.GPL; if not, write to the *
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16 * Free Software Foundation, Inc., *
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17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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18 ***************************************************************************/
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19
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20 #include "UiGuiIniFileParser.h"
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21
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22 #include <QFile>
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23 #include <QStringList>
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24 #include <QVariant>
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25 #include <QTextStream>
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27 //! \defgroup grp_Settings All concerning applications settings.
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28
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29 /*!
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30 \class UiGuiIniFileParser
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31 \ingroup grp_Settings
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32 \brief UiGuiIniFileParser is a simple ini file format parser.
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33
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34 These ini files need to have key-value pairs in the style
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35 "keyname=keyvalue". Groups can be defined by writing the groupname
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36 in the style [groupname] before some key-value pairs.
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37
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38 The reason why I use my own class instead of QSettings is mainly, that
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39 QSettings always internally sorts the groups alphabetically and also
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40 rewrites a settings file sorted. Very annoying for me.
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41 */
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42
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43 /*!
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44 \brief Init and empty all needed lists and strings.
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45 */
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46 UiGuiIniFileParser::UiGuiIniFileParser(void) {
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47 init();
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48 }
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49
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50
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51 /*!
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52 \brief Directly loads and parses the file with name \a iniFileName.
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53 */
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54 UiGuiIniFileParser::UiGuiIniFileParser(const QString &iniFileName) {
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55 init();
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56 _iniFileName = iniFileName;
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57 parseIniFile();
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58 }
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59
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60
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61 void UiGuiIniFileParser::init() {
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62 _sections.clear();
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63 _keyValueMap.clear();
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64 _iniFileName = "";
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65 }
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67
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68 UiGuiIniFileParser::~UiGuiIniFileParser(void) {
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69 }
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71
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72 /*!
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73 \brief Returns the group/section names in the same order as they occurr in the ini file as QStringList.
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74 */
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75 QStringList UiGuiIniFileParser::childGroups() {
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76 QStringList sectionsStringList;
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77
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78 for( unsigned int i = 0; i < _sections.size(); i++ ) {
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79 sectionsStringList << _sections[i];
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80 }
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81
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82 return sectionsStringList;
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83 }
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84
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85
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86 /*!
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87 \brief Returns the value of the defined \a keyName as QVariant.
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88
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89 The \a keyName is assembled by a section name, a slash and the key name itself.
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90 For example if you wish to access the value of the following setting:
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91 <code>[NiceSection]</br>niceKeyName=2</code> you would have to call
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92 value("NiceSection/niceKeyName").
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93 */
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94 QVariant UiGuiIniFileParser::value(const QString &keyName, const QString &defaultValue) {
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95 return _keyValueMap.value( keyName, defaultValue );
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96 }
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97
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98
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99 /*!
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100 \brief Parses the ini file and stores the key value pairs in the internal vectors \a keys and \a values.
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101 */
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102 void UiGuiIniFileParser::parseIniFile() {
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103 QFile iniFile(_iniFileName);
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104
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105 if ( iniFile.open(QFile::ReadOnly) ) {
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106 // Clear the vectors holding the keys and values.
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107 _sections.clear();
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108 _keyValueMap.clear();
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109
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110 QTextStream iniFileStream( &iniFile );
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111 QString line;
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112 QString currentSectionName = "";
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113 QString keyName = "";
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114 QString valueAsString = "";
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115
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116 while ( !iniFileStream.atEnd() ) {
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117 line = iniFileStream.readLine().trimmed();
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118
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119 // Test if the read line is a section name and if so remeber it.
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120 if ( line.startsWith("[") && line.endsWith("]") ) {
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121 currentSectionName = line.remove(0, 1);
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122 currentSectionName.chop(1);
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123
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124 // Store the section name.
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125 _sections.push_back( currentSectionName );
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126 }
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127 // Otherwise test whether the line has a assign char
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128 else if ( line.contains("=") ) {
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129 int indexOfFirstAssign = line.indexOf("=");
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130 keyName = line.left(indexOfFirstAssign);
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131
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132 if ( !keyName.isEmpty() ) {
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133 valueAsString = line.remove(0, indexOfFirstAssign+1);
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134 // Remove any existing double quotes from the value.
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135 if ( valueAsString.startsWith("\"") && valueAsString.endsWith("\"") ) {
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136 valueAsString = valueAsString.remove(0, 1);
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137 valueAsString.chop(1);
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138 }
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139
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140 // Prepend an eventually section name to the key name.
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141 if ( !currentSectionName.isEmpty() ) {
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142 keyName = currentSectionName + "/" + keyName;
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143 }
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144
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145 // Store the key and value in the map.
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146 _keyValueMap.insert(keyName, valueAsString );
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147 }
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148 }
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149 }
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150 }
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151 }