cppcheck/gui/translationhandler.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2012 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 <QApplication>
#include <QFile>
#include <QDebug>
#include <QLocale>
#include "translationhandler.h"
TranslationHandler::TranslationHandler(QObject *parent) :
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QObject(parent),
mCurrentLanguage("en"),
mTranslator(NULL)
{
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// Add our available languages
// Keep this list sorted
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "Dutch"), "cppcheck_nl");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "English"), "cppcheck_en");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "Finnish"), "cppcheck_fi");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "French"), "cppcheck_fr");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "German"), "cppcheck_de");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "Japanese"), "cppcheck_ja");
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AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "Korean"), "cppcheck_ko");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "Russian"), "cppcheck_ru");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "Serbian"), "cppcheck_sr");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "Spanish"), "cppcheck_es");
AddTranslation(QT_TRANSLATE_NOOP("MainWindow", "Swedish"), "cppcheck_sv");
}
TranslationHandler::~TranslationHandler()
{
}
const QStringList TranslationHandler::GetNames() const
{
QStringList names;
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foreach(TranslationInfo translation, mTranslations) {
names.append(translation.mName);
}
return names;
}
bool TranslationHandler::SetLanguage(const QString &code, QString &error)
{
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//If English is the language
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if (code == "en") {
//Just remove all extra translators
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if (mTranslator) {
qApp->removeTranslator(mTranslator);
delete mTranslator;
mTranslator = NULL;
}
mCurrentLanguage = code;
return true;
}
//Make sure the translator is otherwise valid
int index = GetLanguageIndexByCode(code);
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if (index == -1) {
error = QObject::tr("Unknown language specified!");
return false;
}
// Make sure there is a translator
if (!mTranslator)
mTranslator = new QTranslator(this);
//Load the new language
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if (!mTranslator->load(mTranslations[index].mFilename)) {
//If it failed, lets check if the default file exists
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if (!QFile::exists(mTranslations[index].mFilename + ".qm")) {
error = QObject::tr("Language file %1 not found!");
error = error.arg(mTranslations[index].mFilename + ".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(mTranslations[index].mName);
error = error.arg(mTranslations[index].mFilename + ".qm");
return false;
}
qApp->installTranslator(mTranslator);
mCurrentLanguage = code;
return true;
}
QString TranslationHandler::GetCurrentLanguage() const
{
return mCurrentLanguage;
}
QString 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;
//And see if we can find it from our list of language files
int index = GetLanguageIndexByCode(language);
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//If nothing found, return English
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if (index < 0) {
return "en";
}
return language;
}
void TranslationHandler::AddTranslation(const char *name, const char *filename)
{
TranslationInfo info;
info.mName = name;
info.mFilename = filename;
info.mCode = QString(filename).right(2);
mTranslations.append(info);
}
int TranslationHandler::GetLanguageIndexByCode(const QString &code) const
{
int index = -1;
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for (int i = 0; i < mTranslations.size(); i++) {
if (mTranslations[i].mCode == code) {
index = i;
break;
}
}
return index;
}