mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-15 16:42:12 -05:00
219 lines
8.6 KiB
C++
219 lines
8.6 KiB
C++
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#include "L10nLoader.hpp"
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#include <vector>
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#include <memory>
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#include <QApplication>
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#include <QLocale>
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#include <QTranslator>
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#include <QRegularExpression>
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#include <QDebug>
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#include "pimpl_impl.hpp"
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class L10nLoader::impl final
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{
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public:
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explicit impl(QApplication * app)
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: app_ {app}
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{
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}
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bool load_translator (QString const& filename
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, QString const& directory = QString {}
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, QString const& search_delimiters = QString {}
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, QString const& suffix = QString {})
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{
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std::unique_ptr<QTranslator> translator {new QTranslator};
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if (translator->load (filename, directory, search_delimiters, suffix))
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{
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install (std::move (translator));
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return true;
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}
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return false;
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}
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bool load_translator (QLocale const& locale, QString const& filename
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, QString const& prefix = QString {}
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, QString const& directory = QString {}
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, QString const& suffix = QString {})
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{
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std::unique_ptr<QTranslator> translator {new QTranslator};
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if (translator->load (locale, filename, prefix, directory, suffix))
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{
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install (std::move (translator));
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return true;
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}
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return false;
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}
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void install (std::unique_ptr<QTranslator> translator)
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{
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app_->installTranslator (translator.get ());
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translators_.push_back (std::move (translator));
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}
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QApplication * app_;
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std::vector<std::unique_ptr<QTranslator>> translators_;
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};
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L10nLoader::L10nLoader (QApplication * app, QLocale const& locale, QString const& language_override)
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: m_ {app}
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{
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qDebug () << QString {"locale: language: %1 script: %2 country: %3 ui-languages: %4"}
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.arg (QLocale::languageToString (locale.language ()))
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.arg (QLocale::scriptToString (locale.script ()))
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.arg (QLocale::countryToString (locale.country ()))
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.arg (locale.uiLanguages ().join (", "));
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// we don't load translators if the language override is 'en',
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// 'en_US', or 'en-US'. In these cases we assume the user is trying
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// to disable translations loaded because of their locale. We cannot
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// load any locale based translations in this case.
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auto skip_locale = language_override.contains (QRegularExpression {"^(?:en|en[-_]US)$"});
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//
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// Enable base i18n
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//
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QString translations_dir {":/Translations"};
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if (!skip_locale)
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{
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qDebug () << "Looking for locale based Qt translations in resources filesystem";
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if (m_->load_translator (locale, "qt", "_", translations_dir))
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{
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qDebug () << "Loaded Qt translations for current locale from resources";
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}
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// Default translations for releases use translations stored in
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// the resources file system under the Translations
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// directory. These are built by the CMake build system from .ts
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// files in the translations source directory. New languages are
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// added by enabling the UPDATE_TRANSLATIONS CMake option and
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// building with the new language added to the LANGUAGES CMake
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// list variable. UPDATE_TRANSLATIONS will preserve existing
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// translations but should only be set when adding new
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// languages. The resulting .ts files should be checked info
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// source control for translators to access and update.
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// try and load the base translation
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qDebug () << "Looking for WSJT-X translations based on UI languages in the resources filesystem";
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for (QString locale_name : locale.uiLanguages ())
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{
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auto language = locale_name.left (2);
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if (locale.uiLanguages ().front ().left (2) == language)
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{
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qDebug () << QString {"Trying %1"}.arg (language);
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if (m_->load_translator ("wsjtx_" + language, translations_dir))
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{
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qDebug () << QString {"Loaded WSJT-X base translation file from %1 based on language %2"}
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.arg (translations_dir)
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.arg (language);
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break;
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}
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}
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}
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// now try and load the most specific translations (may be a
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// duplicate but we shouldn't care)
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qDebug () << "Looking for WSJT-X translations based on locale in the resources filesystem";
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if (m_->load_translator (locale, "wsjtx", "_", translations_dir))
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{
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qDebug () << "Loaded WSJT-X translations for current locale from resources";
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}
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}
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// Load any matching translation from the current directory
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// using the command line option language override. This allows
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// translators to easily test their translations by releasing
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// (lrelease) a .qm file into the current directory with a
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// suitable name (e.g. wsjtx_en_GB.qm), then running wsjtx to
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// view the results.
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if (language_override.size ())
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{
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auto language = language_override;
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language.replace ('-', '_');
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// try and load the base translation
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auto base_language = language.left (2);
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qDebug () << "Looking for WSJT-X translations based on command line region override in the resources filesystem";
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if (m_->load_translator ("wsjtx_" + base_language, translations_dir))
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{
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qDebug () << QString {"Loaded base translation file from %1 based on language %2"}
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.arg (translations_dir)
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.arg (base_language);
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}
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// now load the requested translations (may be a duplicate
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// but we shouldn't care)
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qDebug () << "Looking for WSJT-X translations based on command line override country in the resources filesystem";
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if (m_->load_translator ("wsjtx_" + language, translations_dir))
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{
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qDebug () << QString {"Loaded translation file from %1 based on language %2"}
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.arg (translations_dir)
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.arg (language);
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}
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}
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// Load any matching translation from the current directory using
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// the current locale. This allows translators to easily test their
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// translations by releasing (lrelease) a .qm file into the current
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// directory with a suitable name (e.g. wsjtx_en_GB.qm), then
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// running wsjtx to view the results. The system locale setting will
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// be used to select the translation file which can be overridden by
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// the LANG environment variable on non-Windows system.
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// try and load the base translation
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qDebug () << "Looking for WSJT-X translations based on command line override country in the current directory";
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for (QString locale_name : locale.uiLanguages ())
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{
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auto language = locale_name.left (2);
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if (locale.uiLanguages ().front ().left (2) == language)
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{
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qDebug () << QString {"Trying %1"}.arg (language);
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if (m_->load_translator ("wsjtx_" + language))
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{
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qDebug () << QString {"Loaded base translation file from $cwd based on language %1"}.arg (language);
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break;
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}
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}
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}
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if (!skip_locale)
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{
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// now try and load the most specific translations (may be a
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// duplicate but we shouldn't care)
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qDebug () << "Looking for WSJT-X translations based on locale in the resources filesystem";
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if (m_->load_translator (locale, "wsjtx", "_"))
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{
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qDebug () << "loaded translations for current locale from a file";
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}
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}
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// Load any matching translation from the current directory using
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// the command line option language override. This allows
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// translators to easily test their translations on Windows by
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// releasing (lrelease) a .qm file into the current directory with a
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// suitable name (e.g. wsjtx_en_GB.qm), then running wsjtx to view
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// the results.
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if (language_override.size ())
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{
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auto language = language_override;
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language.replace ('-', '_');
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// try and load the base translation
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auto base_language = language.left (2);
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qDebug () << "Looking for WSJT-X translations based on command line override country in the current directory";
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if (m_->load_translator ("wsjtx_" + base_language))
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{
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qDebug () << QString {"Loaded base translation file from $cwd based on language %1"}.arg (base_language);
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}
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// now load the requested translations (may be a duplicate
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// but we shouldn't care)
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qDebug () << "Looking for WSJT-X translations based on command line region in the current directory";
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if (m_->load_translator ("wsjtx_" + language))
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{
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qDebug () << QString {"loaded translation file from $cwd based on language %1"}.arg (language);
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}
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}
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}
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L10nLoader::~L10nLoader ()
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{
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}
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