cppcheck/gui/translationhandler.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2010 Daniel Marjamäki and Cppcheck team.
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*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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. If not, see <http://www.gnu.org/licenses/>.
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*/
#include "translationhandler.h"
#include <QApplication>
#include <QFile>
#include <QDebug>
#include <QLocale>
TranslationHandler::TranslationHandler(QObject *parent) :
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QObject(parent),
mCurrentLanguage(-1),
mTranslator(new QTranslator(this))
{
//Add our default languages
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mNames << QT_TRANSLATE_NOOP("MainWindow", "English")
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<< QT_TRANSLATE_NOOP("MainWindow", "Dutch")
<< QT_TRANSLATE_NOOP("MainWindow", "Finnish")
<< QT_TRANSLATE_NOOP("MainWindow", "Swedish")
<< QT_TRANSLATE_NOOP("MainWindow", "German")
<< QT_TRANSLATE_NOOP("MainWindow", "Russian")
<< QT_TRANSLATE_NOOP("MainWindow", "Polish")
<< QT_TRANSLATE_NOOP("MainWindow", "Japanese");
mFiles << "cppcheck_en"
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<< "cppcheck_nl"
<< "cppcheck_fi"
<< "cppcheck_se"
<< "cppcheck_de"
<< "cppcheck_ru"
<< "cppcheck_pl"
<< "cppcheck_ja";
//Load english as a fallback language
QTranslator *english = new QTranslator();
if (english->load("cppcheck_en"))
{
qApp->installTranslator(english);
}
else
{
qDebug() << "Failed to load English translation!";
delete english;
}
}
TranslationHandler::~TranslationHandler()
{
}
const QStringList TranslationHandler::GetNames() const
{
return mNames;
}
const QStringList TranslationHandler::GetFiles() const
{
return mFiles;
}
bool TranslationHandler::SetLanguage(const int index, QString &error)
{
//If english is the language
if (index == 0)
{
//Just remove all extra translators
if (mTranslator)
{
qApp->removeTranslator(mTranslator);
}
mCurrentLanguage = index;
return true;
}
//Make sure the translator is otherwise valid
if (index >= mNames.size())
{
error = QObject::tr("Incorrect language specified!");
return false;
}
//Load the new language
if (!mTranslator->load(mFiles[index]))
{
//If it failed, lets check if the default file exists
if (!QFile::exists(mFiles[index] + ".qm"))
{
error = QObject::tr("Language file %1 not found!");
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error = error.arg(mFiles[index] + ".qm");
return false;
}
//If file exists, there's something wrong with it
error = QObject::tr("Failed to load translation for language %1 from file %2");
error = error.arg(mNames[index]);
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error = error.arg(mFiles[index] + ".qm");
return false;
}
qApp->installTranslator(mTranslator);
mCurrentLanguage = index;
return true;
}
int TranslationHandler::GetCurrentLanguage() const
{
return mCurrentLanguage;
}
int TranslationHandler::SuggestLanguage() const
{
/*
Get language from system locale's name
QLocale::languageToString would return the languages full name and we
only want two-letter ISO 639 language code so we'll get it from
locale's name.
*/
QString language = QLocale::system().name().left(2);
//qDebug()<<"Your language is"<<language;
//catenate that to the default language filename
QString file = QString("cppcheck_%1").arg(language);
//qDebug()<<"Language file could be"<<file;
//And see if we can find it from our list of language files
int index = mFiles.indexOf(file);
//If nothing found, return english
if (index < 0)
{
return 0;
}
return index;
}