a195477470
Building with enhanced clang warnings indicated a large number of instances with the warning: `warning: zero as null pointer constant` Recommended practice in C++11 is to use `nullptr` as value for a NULL or empty pointer value. All instances where this warning was encountered were corrected in this commit. Where warning was encountered in dependency code (i.e. external library) no chnages were made. Patching will be offered upstream.
149 lines
3.6 KiB
C++
149 lines
3.6 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2017 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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#ifndef TRANSLATIONHANDLER_H
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#define TRANSLATIONHANDLER_H
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#include <QStringList>
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#include <QTranslator>
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#include <QObject>
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#include <QList>
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/// @addtogroup GUI
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/// @{
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/**
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* @brief Information for one translation.
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*
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*/
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struct TranslationInfo {
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/**
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* @brief Readable name for the translation (e.g. "English").
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*
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*/
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QString mName;
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/**
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* @brief Filename for the translation.
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*
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*/
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QString mFilename;
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/**
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* @brief ISO 639 language code for the translation (e.g. "en").
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*
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*/
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QString mCode;
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};
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/**
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* @brief A class handling the available translations.
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*
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* This class contains a list of available translations. The class also keeps
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* track which translation is the currently active translation.
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*
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*/
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class TranslationHandler : QObject {
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Q_OBJECT
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public:
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explicit TranslationHandler(QObject *parent = nullptr);
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virtual ~TranslationHandler();
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/**
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* @brief Get a list of available translation names.
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* @return List of available translation names.
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*
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*/
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const QStringList getNames() const;
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/**
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* @brief Get a list of available translations.
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* @return List of available translations.
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*
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*/
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QList<TranslationInfo> getTranslations() const {
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return mTranslations;
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}
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/**
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* @brief Set active translation.
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* @param code ISO 639 language code for new selected translation.
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* @return true if succeeds, false otherwise.
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*
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*/
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bool setLanguage(const QString &code);
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/**
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* @brief Get currently selected translation.
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* @return ISO 639 language code for current translation.
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*
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*/
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QString getCurrentLanguage() const;
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/**
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* @brief Get translation suggestion for the system.
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* This function checks the current system locale and determines which of
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* the available translations is best as current translation. If none of
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* the available translations is good then it returns English ("en").
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* @return Suggested translation ISO 639 language code.
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*
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*/
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QString suggestLanguage() const;
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protected:
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/**
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* @brief Add new translation to list of available translations.
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* @param name Name of the translation ("English").
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* @param filename Filename of the translation.
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*
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*/
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void addTranslation(const char *name, const char *filename);
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/**
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* @brief Find language in the list and return its index.
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* @param code ISO 639 language code.
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* @return Index at list, or -1 if not found.
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*
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*/
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int getLanguageIndexByCode(const QString &code) const;
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private:
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/**
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* @brief ISO 639 language code of the currently selected translation.
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*
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*/
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QString mCurrentLanguage;
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/**
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* @brief List of available translations.
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*
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*/
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QList<TranslationInfo> mTranslations;
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/**
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* @brief Translator class instance.
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*
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*/
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QTranslator *mTranslator;
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};
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/// @}
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#endif // TRANSLATIONHANDLER_H
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