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/***************************************************************************
* Copyright (C) 2006-2012 by Thomas Schweitzer *
* thomas-schweitzer(at)arcor.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License version 2.0 as *
* published by the Free Software Foundation. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program in the file LICENSE.GPL; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "UiGuiIniFileParser.h"
#include <QFile>
#include <QStringList>
#include <QVariant>
#include <QTextStream>
//! \defgroup grp_Settings All concerning applications settings.
/*!
\class UiGuiIniFileParser
\ingroup grp_Settings
\brief UiGuiIniFileParser is a simple ini file format parser.
These ini files need to have key-value pairs in the style
"keyname=keyvalue". Groups can be defined by writing the groupname
in the style [groupname] before some key-value pairs.
The reason why I use my own class instead of QSettings is mainly, that
QSettings always internally sorts the groups alphabetically and also
rewrites a settings file sorted. Very annoying for me.
*/
/*!
\brief Init and empty all needed lists and strings.
*/
UiGuiIniFileParser::UiGuiIniFileParser(void) {
init();
}
/*!
\brief Directly loads and parses the file with name \a iniFileName.
*/
UiGuiIniFileParser::UiGuiIniFileParser(const QString &iniFileName) {
init();
_iniFileName = iniFileName;
parseIniFile();
}
void UiGuiIniFileParser::init() {
_sections.clear();
_keyValueMap.clear();
_iniFileName = "";
}
UiGuiIniFileParser::~UiGuiIniFileParser(void) {
}
/*!
\brief Returns the group/section names in the same order as they occurr in the ini file as QStringList.
*/
QStringList UiGuiIniFileParser::childGroups() {
QStringList sectionsStringList;
for( unsigned int i = 0; i < _sections.size(); i++ ) {
sectionsStringList << _sections[i];
}
return sectionsStringList;
}
/*!
\brief Returns the value of the defined \a keyName as QVariant.
The \a keyName is assembled by a section name, a slash and the key name itself.
For example if you wish to access the value of the following setting:
<code>[NiceSection]</br>niceKeyName=2</code> you would have to call
value("NiceSection/niceKeyName").
*/
QVariant UiGuiIniFileParser::value(const QString &keyName, const QString &defaultValue) {
return _keyValueMap.value( keyName, defaultValue );
}
/*!
\brief Parses the ini file and stores the key value pairs in the internal vectors \a keys and \a values.
*/
void UiGuiIniFileParser::parseIniFile() {
QFile iniFile(_iniFileName);
if ( iniFile.open(QFile::ReadOnly) ) {
// Clear the vectors holding the keys and values.
_sections.clear();
_keyValueMap.clear();
QTextStream iniFileStream( &iniFile );
QString line;
QString currentSectionName = "";
QString keyName = "";
QString valueAsString = "";
while ( !iniFileStream.atEnd() ) {
line = iniFileStream.readLine().trimmed();
// Test if the read line is a section name and if so remeber it.
if ( line.startsWith("[") && line.endsWith("]") ) {
currentSectionName = line.remove(0, 1);
currentSectionName.chop(1);
// Store the section name.
_sections.push_back( currentSectionName );
}
// Otherwise test whether the line has a assign char
else if ( line.contains("=") ) {
int indexOfFirstAssign = line.indexOf("=");
keyName = line.left(indexOfFirstAssign);
if ( !keyName.isEmpty() ) {
valueAsString = line.remove(0, indexOfFirstAssign+1);
// Remove any existing double quotes from the value.
if ( valueAsString.startsWith("\"") && valueAsString.endsWith("\"") ) {
valueAsString = valueAsString.remove(0, 1);
valueAsString.chop(1);
}
// Prepend an eventually section name to the key name.
if ( !currentSectionName.isEmpty() ) {
keyName = currentSectionName + "/" + keyName;
}
// Store the key and value in the map.
_keyValueMap.insert(keyName, valueAsString );
}
}
}
}
}
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