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#include <QtGui/qgraphicsview.h>

QT_BEGIN_NAMESPACE
class QTimeLine;
class Ui_BackSide;
QT_END_NAMESPACE

class RoundRectItem;

class Panel : public QGraphicsView
{
    Q_OBJECT
public:
    Panel(int width, int height);
    ~Panel();

protected:
    void keyPressEvent(QKeyEvent *event);
    void resizeEvent(QResizeEvent *event);

private Q_SLOTS:
    void updateSelectionStep(qreal val);
    void updateFlipStep(qreal val);
    void flip();

private:
    QPointF posForLocation(int x, int y) const;

    QGraphicsScene *scene;
    RoundRectItem *selectionItem;
    RoundRectItem *baseItem;
    RoundRectItem *backItem;
    QGraphicsWidget *splash;
    QTimeLine *selectionTimeLine;
    QTimeLine *flipTimeLine;
    int selectedX, selectedY;

    QGraphicsItem ***grid;
    
    QPointF startPos;
    QPointF endPos;
    qreal xrot, yrot;
    qreal xrot2, yrot2;

    int width;
    int height;
    bool flipped;
    bool flipLeft;

    Ui_BackSide *ui;
};