#ifndef FM_DRAG_ZOOM_WIDGET_H
#define FM_DRAG_ZOOM_WIDGET_H
#if (USE_DRAG_ZOOM)

#include <QWidget>
#include <QPainter>
class FMDragZoomWidget : public QWidget
{
    Q_OBJECT
public:
#if (DRAG_ZOOM_BY_RATIO)
    QSize ratio;
#endif //

private:

    bool _mousePressed;
    bool _drawStarted;
    bool _ROIEnabled;


    QCursor* _magnify;
    QPixmap _pixmap;
    QRect _rect;
    QPainter _painter;

    QPoint filterPoint(QPoint point);
    void sendSelectedSignal();
public:

#if  (USE_DRAG_ZOOM)
    bool _disabled;
    bool _block;
#endif // USE_DRAG_ZOOM

    explicit FMDragZoomWidget(QWidget *parent = 0);

    void mousePressEvent(QMouseEvent *e);
    void mouseMoveEvent(QMouseEvent *e);
    void mouseReleaseEvent(QMouseEvent *e);
    void mouseDoubleClickEvent(QMouseEvent *e);

    void paintEvent(QPaintEvent *event);

    void setROIEnabled(bool enabled);
    void ROIReset();    // fullscreen

public slots:
#if  (USE_DRAG_ZOOM)
    void onReleaseDisabled();
#endif

signals:
    void ROISelected(double x, double y, double width, double height);
    void ROICleared();
#if (CLICK_PAUSE_PLAY)
    void clicked(); ///! DRAG 없이 CLICK 발생?
#endif // CLICK_PAUSE_PLAY
public slots:
};
#endif // #if (USE_DRAG_ZOOM)
#endif // FM_DRAG_ZOOM_WIDGET_H