192 lines
6.2 KiB
C++
192 lines
6.2 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2023 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "translationhandler.h"
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#include "config.h"
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#include "common.h"
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#include <QApplication>
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#include <QCoreApplication>
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#include <QFile>
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#include <QFileInfo>
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#include <QLocale>
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#include <QMessageBox>
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#include <QTranslator>
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#include <QtGlobal>
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// Provide own translations for standard buttons. This (garbage) code is needed to enforce them to appear in .ts files even after "lupdate gui.pro"
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static UNUSED void unused()
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{
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Q_UNUSED(QT_TRANSLATE_NOOP("QPlatformTheme", "OK"))
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Q_UNUSED(QT_TRANSLATE_NOOP("QPlatformTheme", "Cancel"))
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Q_UNUSED(QT_TRANSLATE_NOOP("QPlatformTheme", "Close"))
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Q_UNUSED(QT_TRANSLATE_NOOP("QPlatformTheme", "Save"))
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}
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TranslationHandler::TranslationHandler(QObject *parent) :
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QObject(parent),
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mCurrentLanguage("en"),
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mTranslator(nullptr)
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{
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// Add our available languages
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// Keep this list sorted
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addTranslation("Chinese (Simplified)", "cppcheck_zh_CN");
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addTranslation("Chinese (Traditional)", "cppcheck_zh_TW");
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addTranslation("Dutch", "cppcheck_nl");
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addTranslation("English", "cppcheck_en");
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addTranslation("Finnish", "cppcheck_fi");
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addTranslation("French", "cppcheck_fr");
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addTranslation("German", "cppcheck_de");
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addTranslation("Italian", "cppcheck_it");
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addTranslation("Japanese", "cppcheck_ja");
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addTranslation("Korean", "cppcheck_ko");
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addTranslation("Russian", "cppcheck_ru");
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addTranslation("Serbian", "cppcheck_sr");
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addTranslation("Spanish", "cppcheck_es");
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addTranslation("Swedish", "cppcheck_sv");
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}
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TranslationHandler::~TranslationHandler()
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{}
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bool TranslationHandler::setLanguage(const QString &code)
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{
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bool failure = false;
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QString error;
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//If English is the language. Code can be e.g. en_US
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if (code.indexOf("en") == 0) {
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//Just remove all extra translators
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if (mTranslator) {
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qApp->removeTranslator(mTranslator);
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delete mTranslator;
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mTranslator = nullptr;
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}
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mCurrentLanguage = code;
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return true;
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}
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//Make sure the translator is otherwise valid
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const int index = getLanguageIndexByCode(code);
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if (index == -1) {
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error = QObject::tr("Unknown language specified!");
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failure = true;
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} else {
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// Make sure there is a translator
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if (!mTranslator)
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mTranslator = new QTranslator(this);
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//Load the new language
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const QString appPath = QFileInfo(QCoreApplication::applicationFilePath()).canonicalPath();
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QString datadir = getDataDir();
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QString translationFile;
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if (QFile::exists(datadir + "/lang/" + mTranslations[index].mFilename + ".qm"))
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translationFile = datadir + "/lang/" + mTranslations[index].mFilename + ".qm";
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else if (QFile::exists(datadir + "/" + mTranslations[index].mFilename + ".qm"))
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translationFile = datadir + "/" + mTranslations[index].mFilename + ".qm";
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else
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translationFile = appPath + "/" + mTranslations[index].mFilename + ".qm";
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if (!mTranslator->load(translationFile)) {
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failure = true;
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//If it failed, lets check if the default file exists
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if (!QFile::exists(translationFile)) {
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error = QObject::tr("Language file %1 not found!");
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error = error.arg(translationFile);
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}
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else {
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//If file exists, there's something wrong with it
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error = QObject::tr("Failed to load translation for language %1 from file %2");
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error = error.arg(mTranslations[index].mName);
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error = error.arg(translationFile);
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}
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}
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}
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if (failure) {
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const QString msg(tr("Failed to change the user interface language:"
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"\n\n%1\n\n"
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"The user interface language has been reset to English. Open "
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"the Preferences-dialog to select any of the available "
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"languages.").arg(error));
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QMessageBox msgBox(QMessageBox::Warning,
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tr("Cppcheck"),
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msg,
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QMessageBox::Ok);
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msgBox.exec();
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return false;
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}
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qApp->installTranslator(mTranslator);
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mCurrentLanguage = code;
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return true;
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}
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QString TranslationHandler::getCurrentLanguage() const
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{
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return mCurrentLanguage;
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}
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QString TranslationHandler::suggestLanguage() const
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{
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//Get language from system locale's name ie sv_SE or zh_CN
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QString language = QLocale::system().name();
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//qDebug()<<"Your language is"<<language;
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//And see if we can find it from our list of language files
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const int index = getLanguageIndexByCode(language);
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//If nothing found, return English
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if (index < 0) {
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return "en";
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}
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return language;
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}
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void TranslationHandler::addTranslation(const char *name, const char *filename)
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{
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TranslationInfo info;
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info.mName = name;
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info.mFilename = filename;
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const int codeLength = QString(filename).length() - QString(filename).indexOf('_') - 1;
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info.mCode = QString(filename).right(codeLength);
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mTranslations.append(info);
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}
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int TranslationHandler::getLanguageIndexByCode(const QString &code) const
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{
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int index = -1;
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for (int i = 0; i < mTranslations.size(); i++) {
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if (mTranslations[i].mCode == code || mTranslations[i].mCode == code.left(2)) {
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index = i;
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break;
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}
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}
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return index;
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}
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