302 lines
11 KiB
C++
302 lines
11 KiB
C++
#include "./resources.h"
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#include "resources/config.h"
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#include <QDir>
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#include <QFile>
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#include <QFont>
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#include <QIcon>
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#include <QLibraryInfo>
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#include <QLocale>
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#include <QSettings>
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#include <QString>
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#include <QStringBuilder>
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#include <QTranslator>
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#if defined(QT_UTILITIES_GUI_QTWIDGETS)
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#include <QApplication>
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#elif defined(QT_UTILITIES_GUI_QTQUICK)
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#include <QGuiApplication>
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#else
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#include <QCoreApplication>
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#endif
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#include <iostream>
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using namespace std;
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///! \cond
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inline void initResources()
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{
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Q_INIT_RESOURCE(qtutilsicons);
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}
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inline void cleanupResources()
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{
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Q_CLEANUP_RESOURCE(qtutilsicons);
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}
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///! \endcond
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namespace QtUtilities {
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/*!
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* \brief Functions for using the resources provided by this library.
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* \deprecated Replaced by ENABLE_QT_RESOURCES_OF_STATIC_DEPENDENCIES macro.
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*/
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namespace QtUtilitiesResources {
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/*!
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* \brief Initiates the resources used and provided by this library.
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* \deprecated Replaced by ENABLE_QT_RESOURCES_OF_STATIC_DEPENDENCIES macro.
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*/
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void init()
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{
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initResources();
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}
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/*!
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* \brief Frees the resources used and provided by this library.
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* \deprecated Replaced by ENABLE_QT_RESOURCES_OF_STATIC_DEPENDENCIES macro.
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*/
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void cleanup()
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{
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cleanupResources();
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}
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} // namespace QtUtilitiesResources
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/*!
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* \brief Convenience functions to load translations for Qt and the application.
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*/
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namespace TranslationFiles {
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/*!
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* \brief Allows to set an additional search path for translation files.
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* \remarks This path is considered *before* the default directories.
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*/
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QString &additionalTranslationFilePath()
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{
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static QString path;
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return path;
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}
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/*!
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* \brief Loads and installs the appropriate Qt translation file for the current
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* locale.
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* \param repositoryNames Specifies the names of the Qt repositories to load
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* translations for (eg. qtbase, qtscript, ...).
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* \remarks
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* - Translation files have to be placed in one of the following locations:
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* * QLibraryInfo::location(QLibraryInfo::TranslationsPath) (used in UNIX)
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* * ../share/qt/translations (used in Windows)
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* - Translation files can also be built-in using by setting the CMake variable
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* BUILTIN_TRANSLATIONS.
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* In this case it is also necessary to load the translations using this
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* function.
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*/
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void loadQtTranslationFile(std::initializer_list<QString> repositoryNames)
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{
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loadQtTranslationFile(repositoryNames, QLocale().name());
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}
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/*!
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* \brief Loads and installs the appropriate Qt translation file for the
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* specified locale.
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* \param repositoryNames Specifies the names of the Qt repositories to load
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* translations for (eg. qtbase, qtscript, ...).
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* \param localeName Specifies the name of the locale.
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* \remarks
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* - Translation files have to be placed in one of the following locations:
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* * QLibraryInfo::location(QLibraryInfo::TranslationsPath) (used in UNIX)
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* * ../share/qt/translations (used in Windows)
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* - Translation files can also be built-in using by setting the CMake variable
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* BUILTIN_TRANSLATIONS.
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* In this case it is also necessary to load the translations using this
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* function.
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*/
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void loadQtTranslationFile(initializer_list<QString> repositoryNames, const QString &localeName)
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{
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const auto debugTranslations = qEnvironmentVariableIsSet("QT_DEBUG_TRANSLATIONS");
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for (const auto &repoName : repositoryNames) {
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auto *const qtTranslator = new QTranslator;
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const auto fileName = QString(repoName % QChar('_') % localeName);
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QString path;
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if ((!additionalTranslationFilePath().isEmpty() && qtTranslator->load(fileName, path = additionalTranslationFilePath()))
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|| qtTranslator->load(fileName, path = QLibraryInfo::location(QLibraryInfo::TranslationsPath))
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|| qtTranslator->load(fileName, path = QStringLiteral("../share/qt/translations"))
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|| qtTranslator->load(fileName, path = QStringLiteral(":/translations"))) {
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QCoreApplication::installTranslator(qtTranslator);
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if (debugTranslations) {
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cerr << "Loading translation file for Qt repository \"" << repoName.toLocal8Bit().data() << "\" and the locale \""
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<< localeName.toLocal8Bit().data() << "\" from \"" << path.toLocal8Bit().data() << "\"." << endl;
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}
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} else {
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delete qtTranslator;
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if (localeName.startsWith(QLatin1String("en"))) {
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// the translation file is probably just empty (English is built-in and usually only used for plural forms)
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continue;
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}
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cerr << "Unable to load translation file for Qt repository \"" << repoName.toLocal8Bit().data() << "\" and locale "
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<< localeName.toLocal8Bit().data() << "." << endl;
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}
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}
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}
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/*!
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* \brief Loads and installs the appropriate application translation file for
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* the current locale.
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* \param applicationName Specifies the name of the application.
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* \remarks
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* - Translation files have to be placed in one of the following locations:
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* * ./
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* * ../$application
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* * ../../$application
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* * ./translations
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* * ../share/$application/translations
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* * $install_prefix/share/$application/translations
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* - Translation files must be named using the following scheme:
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* * $application_$language.qm
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* - Translation files can also be built-in using by setting the CMake variable
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* BUILTIN_TRANSLATIONS.
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* In this case it is also necessary to load the translations using this
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* function.
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*/
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void loadApplicationTranslationFile(const QString &configName, const QString &applicationName)
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{
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// load English translation files as fallback
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loadApplicationTranslationFile(configName, applicationName, QStringLiteral("en_US"));
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// load translation files for current locale
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const auto defaultLocale(QLocale().name());
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if (defaultLocale != QLatin1String("en_US")) {
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loadApplicationTranslationFile(configName, applicationName, defaultLocale);
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}
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}
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/// \cond
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void logTranslationEvent(
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const char *event, const QString &configName, const QString &applicationName, const QString &localeName, const QString &path = QString())
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{
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cerr << event << " translation file for \"" << applicationName.toLocal8Bit().data() << "\"";
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if (!configName.isEmpty()) {
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cerr << " (config \"" << configName.toLocal8Bit().data() << "\")";
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}
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cerr << " and locale \"" << localeName.toLocal8Bit().data() << '\"';
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if (!path.isEmpty()) {
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cerr << " from \"" << path.toLocal8Bit().data() << '\"';
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}
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cerr << '.' << endl;
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}
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/// \endcond
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/*!
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* \brief Loads and installs the appropriate application translation file for
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* the specified locale.
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* \param applicationName Specifies the name of the application.
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* \param localeName Specifies the name of the locale.
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* \remarks
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* - Translation files have to be placed in one of the following locations:
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* * ./
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* * ../$application
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* * ../../$application
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* * ./translations
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* * ../share/$application/translations
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* * $install_prefix/share/$application/translations
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* - Translation files must be named using the following scheme:
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* * $application_$language.qm
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* - Translation files can also be built-in using by setting the CMake variable
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* BUILTIN_TRANSLATIONS.
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* In this case it is also necessary to load the translations using this
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* function.
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*/
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void loadApplicationTranslationFile(const QString &configName, const QString &applicationName, const QString &localeName)
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{
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auto *const appTranslator = new QTranslator;
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const auto fileName = QString(applicationName % QChar('_') % localeName);
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const auto directoryName = configName.isEmpty() ? applicationName : QString(applicationName % QChar('-') % configName);
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QString path;
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if ((!additionalTranslationFilePath().isEmpty() && appTranslator->load(fileName, path = additionalTranslationFilePath()))
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|| appTranslator->load(fileName, path = QStringLiteral(".")) || appTranslator->load(fileName, path = QStringLiteral("../") % directoryName)
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|| appTranslator->load(fileName, path = QStringLiteral("../") % directoryName)
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|| appTranslator->load(fileName, path = QStringLiteral("../../") % directoryName)
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|| appTranslator->load(fileName, path = QStringLiteral("./translations"))
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|| appTranslator->load(fileName, path = QStringLiteral("../share/") % directoryName % QStringLiteral("/translations"))
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|| appTranslator->load(fileName, path = QStringLiteral(APP_INSTALL_PREFIX "/share/") % directoryName % QStringLiteral("/translations"))
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|| appTranslator->load(fileName, path = QStringLiteral(":/translations"))) {
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QCoreApplication::installTranslator(appTranslator);
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if (qEnvironmentVariableIsSet("QT_DEBUG_TRANSLATIONS")) {
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logTranslationEvent("Loading", configName, applicationName, localeName, path);
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}
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} else {
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delete appTranslator;
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if (localeName.startsWith(QLatin1String("en"))) {
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// the translation file is probably just empty (English is built-in and usually only used for plural forms)
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return;
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}
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logTranslationEvent("Unable to load", configName, applicationName, localeName);
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}
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}
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/*!
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* \brief Loads and installs the appropriate application translation file for
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* the current locale.
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* \param applicationNames Specifies the names of the applications.
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*/
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void loadApplicationTranslationFile(const QString &configName, const std::initializer_list<QString> &applicationNames)
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{
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for (const QString &applicationName : applicationNames) {
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loadApplicationTranslationFile(configName, applicationName);
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}
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}
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/*!
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* \brief Loads and installs the appropriate application translation file for
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* the specified locale.
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* \param applicationNames Specifies the names of the applications.
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* \param localeName Specifies the name of the locale.
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*/
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void loadApplicationTranslationFile(const QString &configName, const std::initializer_list<QString> &applicationNames, const QString &localeName)
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{
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for (const QString &applicationName : applicationNames) {
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loadApplicationTranslationFile(configName, applicationName, localeName);
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}
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}
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} // namespace TranslationFiles
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/*!
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* \brief Convenience functions to check whether a
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* QCoreApplication/QGuiApplication/QApplication singleton has been instantiated
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* yet.
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*/
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namespace ApplicationInstances {
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#if defined(QT_UTILITIES_GUI_QTWIDGETS)
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/*!
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* \brief Returns whether a QApplication has been instantiated yet.
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*/
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bool hasWidgetsApp()
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{
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return qobject_cast<QApplication *>(QCoreApplication::instance()) != nullptr;
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}
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#endif
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#if defined(QT_UTILITIES_GUI_QTWIDGETS) || defined(QT_UTILITIES_GUI_QTQUICK)
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/*!
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* \brief Returns whether a QGuiApplication has been instantiated yet.
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*/
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bool hasGuiApp()
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{
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return qobject_cast<QGuiApplication *>(QCoreApplication::instance()) != nullptr;
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}
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#endif
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/*!
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* \brief Returns whether a QCoreApplication has been instantiated yet.
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*/
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bool hasCoreApp()
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{
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return qobject_cast<QCoreApplication *>(QCoreApplication::instance()) != nullptr;
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}
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} // namespace ApplicationInstances
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} // namespace QtUtilities
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