Qt with Cascades UI Examples Documentation

app.hpp Example File

i18n/src/app.hpp
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    #ifndef APP_HPP
    #define APP_HPP

    #include <bb/cascades/Control>
    #include <bb/cascades/QListDataModel>
    #include <bb/cascades/TextArea>

    #include <QtCore/QObject>
    #include <QtCore/QMap>

    class QStringList;

    /**
     * This sample application shows how to use the internationalization infrastructure of Qt
     * to translate an application to multiple language.
     */
    class App : public QObject
    {
        Q_OBJECT

        Q_PROPERTY(QString message READ message NOTIFY messageChanged)

    public:
        App();

        // This method is called when the user selects a different language in the UI
        Q_INVOKABLE void setCurrentLanguage(const QVariantList &indexPath);

    Q_SIGNALS:
        // This signal is emitted to trigger a re-translation of the UI
        void retranslate();

        // The change notification signal of the property
        void messageChanged();

    private:
        // The accessor method of the property
        QString message() const;

        // A helper method that creates the model for the language list view
        void setupLanguageModel();

        // A helper method that finds all available translation catalogs
        QStringList findQmFiles() const;

        // A helper method that returns the name of a language for a given catalog file
        QString languageName(const QString &qmFile) const;

        // The list model that contains the language names of all available catalogs
        bb::cascades::QListDataModel<QString> m_model;

        // The property value
        QString m_message;

        // The map that maps language names to catalog file names
        QMap<QString, QString> m_languageMap;

        // The translator object
        QTranslator *m_translator;
    };

    #endif