app.h Example File

    /* Copyright (c) 2012 Stuart MacMartin.
    *
    * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
    * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
    * PARTICULAR PURPOSE AND NONINFRINGEMENT.
    * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
    * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    */

    #ifndef APP_HPP
    #define APP_HPP

    #include <QtCore/QObject>

    #include <bb/cascades/Image>

    class App : public QObject
    {
        Q_OBJECT

        // The object that should be painted (either file name of 'circle' or 'square')
        Q_PROPERTY(QString object READ object WRITE setObject NOTIFY objectChanged)

        // The number of replicant rows
        Q_PROPERTY(QString rows READ rows WRITE setRows NOTIFY rowsChanged)

        // The number of replicant columns
        Q_PROPERTY(QString columns READ columns WRITE setColumns NOTIFY columnsChanged)

        // The final rendered image
        Q_PROPERTY(bb::cascades::Image image READ image NOTIFY imageChanged)

    public:
        App();

    Q_SIGNALS:
        // The change notification signals for the properties
        void objectChanged();
        void rowsChanged();
        void columnsChanged();
        void imageChanged();

    private:
        // The accessor methods for the properties
        void setObject(const QString &object);
        QString object() const;
        void setRows(const QString &rows);
        QString rows() const;
        void setColumns(const QString &columns);
        QString columns() const;
        bb::cascades::Image image() const;

        // A helper method that is called whenever an input parameter has changed
        void updateImage();

        // A helper method to calculate the size of a single replicant image
        QSize desiredReplicantSize() const;

    private:
        QString m_object;
        int m_rows;
        int m_columns;
        bb::cascades::Image m_image;
    };

    #endif