paintarea.h

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#ifndef PAINTAREA_H
#define PAINTAREA_H
 
#include <QWidget>
 
class PaintArea : public QWidget
 {
     Q_OBJECT
 
 public:
     PaintArea(QWidget *parent = 0);
     QImage &drawImage() { return m_bitmap; }
 
signals:
     void needsPainting(QPainter &painter);
     void mouseClick(const QPoint &pos);
     void mouseDrag(const QPoint &from, const QPoint &to, Qt::MouseButton mouseButton);
     void mouseMove(const QPoint &pos);
     void mouseWheel(const QPoint &pos, int wheel_steps);
 
 protected:
     void paintEvent(QPaintEvent *event);
     void mousePressEvent ( QMouseEvent * event );
     void mouseReleaseEvent ( QMouseEvent * event );
     void resizeEvent ( QResizeEvent * event );
     void mouseMoveEvent(QMouseEvent *event);
     void wheelEvent ( QWheelEvent * event );
 private:
     QImage m_bitmap;
     QPoint m_lastDown;
 };
 
 
#endif // PAINTAREA_H