htmlinfo.hpp Example File

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    #ifndef HTMLINFO_HPP
    #define HTMLINFO_HPP

    #include <QtCore/QObject>

    /**
     * The HtmlInfo object contains the business logic of this application.
     *
     * It parses a given XML (XHTML) file with a QXmlStreamReader and extracts
     * information about the document. These information are available to the UI
     * via properties.
     */
    class HtmlInfo : public QObject
    {
        Q_OBJECT

        // Makes the title of the document available to the UI
        Q_PROPERTY(QString title READ title NOTIFY infoChanged)

        // Makes the number of paragraphs in the document available to the UI
        Q_PROPERTY(int paragraphs READ paragraphs NOTIFY infoChanged)

        // Makes the number of links in the document available to the UI
        Q_PROPERTY(int links READ links NOTIFY infoChanged)

        // Makes the link content (everything between <a> and </a>) available to the UI
        Q_PROPERTY(QString linksContent READ linksContent NOTIFY infoChanged)

        // Makes the error message available to the UI
        Q_PROPERTY(QString error READ error NOTIFY errorChanged)

    public:
        HtmlInfo(QObject *parent = 0);

    public Q_SLOTS:
        // This method starts the actual information extraction
        void parseHtmlFile(const QString &fileName);

    Q_SIGNALS:
        // The change notification signals of the properties
        void infoChanged();
        void errorChanged();

    private:
        // The accessor methods of the properties
        QString title() const;
        int paragraphs() const;
        int links() const;
        QString linksContent() const;
        QString error() const;

        // The property values
        QString m_title;
        int m_paragraphs;
        int m_links;
        QString m_linksContent;
        QString m_error;
    };

    #endif