Qt with Cascades UI Examples Documentation

xbelhandler.hpp Example File

saxbookmarks/src/xbelhandler.hpp
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    #ifndef XBELHANDLER_HPP
    #define XBELHANDLER_HPP

    #include <bb/cascades/Container>

    #include <QtXml/QXmlDefaultHandler>

    /**
     * The XbelHandler is responsible for generating controls, that represent
     * the bookmark entries, on the tree container.
     * Its reimplemented methods from QXmlDefaultHandler are invoked by the SAX parser.
     */
    class XbelHandler : public QXmlDefaultHandler
    {
    public:
        XbelHandler(bb::cascades::Container *treeContainer);

        // This method is called whenever the SAX parser processes a start element
        bool startElement(const QString &namespaceURI, const QString &localName,
                          const QString &qName, const QXmlAttributes &attributes);

        // This method is called whenever the SAX parser processes an end element
        bool endElement(const QString &namespaceURI, const QString &localName,
                        const QString &qName);

        // This method is called whenever the SAX parser processes characters inbetween an element
        bool characters(const QString &str);

        // This method is called whenever the SAX parser encounters an error
        bool fatalError(const QXmlParseException &exception);

        // Returns a textual representation of the error if one occurred
        QString errorString() const;

    private:
        // A helper method that generates a control for a specific XBEL element
        bb::cascades::Container *createChildItem(const QString &tagName);

        // The container object the controls are created in
        QPointer<bb::cascades::Container> m_treeContainer;

        // The control that is current processed
        bb::cascades::Container *m_item;

        // The characters that have been collected during the invokation of characters()
        QString m_currentText;

        // The textual representation of an error
        QString m_errorStr;

        // A flag for whether the xbel tag has been found already
        bool m_metXbelTag;
    };

    #endif