// QT includes
#include <QTimer>

// Hyperion-Dispmanx includes
#include <grabber/DispmanxFrameGrabber.h>

class DispmanxWrapper : public QObject
{
    Q_OBJECT
public:
    DispmanxWrapper(const unsigned grabWidth, const unsigned grabHeight, const unsigned updateRate_Hz);

    const Image<ColorRgb> & getScreenshot();

    ///
    /// Starts the timed capturing of screenshots
    ///
    void start();

    void stop();

signals:
    void sig_screenshot(const Image<ColorRgb> & screenshot);

private slots:
    ///
    /// Performs a single screenshot capture and publishes the capture screenshot on the screenshot
    /// signal.
    ///
    void capture();

private:
    /// The QT timer to generate capture-publish events
    QTimer _timer;

    /// The grabber for creating screenshots
    DispmanxFrameGrabber _grabber;
    Image<ColorRgb>   _screenshot_rgb;
    Image<ColorRgba>  _screenshot;

};