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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2016 Cppcheck team.
*
* 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/>.
*/
#include <QApplication>
#include <QFile>
#include <QDebug>
#include <QLocale>
#include <QMessageBox>
#include <QSettings>
#include <QFileInfo>
#include "translationhandler.h"
// Provide own translations for standard buttons. This (garbage) code is needed to enforce them to appear in .ts files even after "lupdate gui.pro"
static void unused()
{
#if ((QT_VERSION >= 0x040000)&&(QT_VERSION < 0x050000))
Q_UNUSED(QT_TRANSLATE_NOOP("QDialogButtonBox", "OK"));
Q_UNUSED(QT_TRANSLATE_NOOP("QDialogButtonBox", "Cancel"));
Q_UNUSED(QT_TRANSLATE_NOOP("QDialogButtonBox", "Close"));
Q_UNUSED(QT_TRANSLATE_NOOP("QDialogButtonBox", "Save"));
#elif ((QT_VERSION >= 0x050000)&&(QT_VERSION < 0x060000))
Q_UNUSED(QT_TRANSLATE_NOOP("QPlatformTheme", "OK"));
Q_UNUSED(QT_TRANSLATE_NOOP("QPlatformTheme", "Cancel"));
Q_UNUSED(QT_TRANSLATE_NOOP("QPlatformTheme", "Close"));
Q_UNUSED(QT_TRANSLATE_NOOP("QPlatformTheme", "Save"));
#else
#error Unsupported Qt version.
#endif
}
TranslationHandler::TranslationHandler(QObject *parent) :
QObject(parent),
mCurrentLanguage("en"),
mTranslator(NULL)
{
// Add our available languages
// Keep this list sorted
AddTranslation("Chinese (Simplified)", "cppcheck_zh_CN");
AddTranslation("Dutch", "cppcheck_nl");
AddTranslation("English", "cppcheck_en");
AddTranslation("Finnish", "cppcheck_fi");
AddTranslation("French", "cppcheck_fr");
AddTranslation("German", "cppcheck_de");
AddTranslation("Italian", "cppcheck_it");
AddTranslation("Japanese", "cppcheck_ja");
AddTranslation("Korean", "cppcheck_ko");
AddTranslation("Russian", "cppcheck_ru");
AddTranslation("Serbian", "cppcheck_sr");
AddTranslation("Spanish", "cppcheck_es");
AddTranslation("Swedish", "cppcheck_sv");
}
TranslationHandler::~TranslationHandler()
{
}
const QStringList TranslationHandler::GetNames() const
{
QStringList names;
foreach (TranslationInfo translation, mTranslations) {
names.append(translation.mName);
}
return names;
}
bool TranslationHandler::SetLanguage(const QString &code)
{
bool failure = false;
QString error;
//If English is the language
if (code == "en") {
//Just remove all extra translators
if (mTranslator) {
qApp->removeTranslator(mTranslator);
delete mTranslator;
mTranslator = NULL;
}
mCurrentLanguage = code;
return true;
}
//Make sure the translator is otherwise valid
int index = GetLanguageIndexByCode(code);
if (index == -1) {
error = QObject::tr("Unknown language specified!");
failure = true;
}
// Make sure there is a translator
if (!mTranslator && !failure)
mTranslator = new QTranslator(this);
//Load the new language
const QString appPath = QFileInfo(QCoreApplication::applicationFilePath()).canonicalPath();
QSettings settings;
QString datadir = settings.value("DATADIR").toString();
if (datadir.isEmpty())
datadir = appPath;
QString translationFile;
if (QFile::exists(datadir + "/lang/" + mTranslations[index].mFilename + ".qm"))
translationFile = datadir + "/lang/" + mTranslations[index].mFilename + ".qm";
else if (QFile::exists(datadir + "/" + mTranslations[index].mFilename + ".qm"))
translationFile = datadir + "/" + mTranslations[index].mFilename + ".qm";
else
translationFile = appPath + "/" + mTranslations[index].mFilename + ".qm";
if (!mTranslator->load(translationFile) && !failure) {
translationFile += ".qm";
//If it failed, lets check if the default file exists
if (!QFile::exists(translationFile)) {
error = QObject::tr("Language file %1 not found!");
error = error.arg(translationFile);
failure = true;
}
//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(translationFile);
}
if (failure) {
const QString msg(tr("Failed to change the user interface language:"
"\n\n%1\n\n"
"The user interface language has been reset to English. Open "
"the Preferences-dialog to select any of the available "
"languages.").arg(error));
QMessageBox msgBox(QMessageBox::Warning,
tr("Cppcheck"),
msg,
QMessageBox::Ok);
msgBox.exec();
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 ie sv_SE or zh_CN
QString language = QLocale::system().name();
//qDebug()<<"Your language is"<<language;
//And see if we can find it from our list of language files
int index = GetLanguageIndexByCode(language);
//If nothing found, return English
if (index < 0) {
return "en";
}
return language;
}
void TranslationHandler::AddTranslation(const char *name, const char *filename)
{
TranslationInfo info;
info.mName = name;
info.mFilename = filename;
int codeLength = QString(filename).length() - QString(filename).indexOf('_') - 1;
info.mCode = QString(filename).right(codeLength);
mTranslations.append(info);
}
int TranslationHandler::GetLanguageIndexByCode(const QString &code) const
{
int index = -1;
for (int i = 0; i < mTranslations.size(); i++) {
if (mTranslations[i].mCode == code) {
index = i;
break;
} else if (mTranslations[i].mCode == code.left(2)) {
index = i;
break;
}
}
return index;
}
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