LimeReport/limereport/lrgraphicsviewzoom.h

#ifndef LRGRAPHICSVIEWZOOM_H
#define LRGRAPHICSVIEWZOOM_H

#include <QGraphicsView>
#include <QObject>

namespace LimeReport {

class GraphicsViewZoomer: public QObject {
    Q_OBJECT
public:
    GraphicsViewZoomer(QGraphicsView* view);
    void gentleZoom(double factor);
    void setModifiers(Qt::KeyboardModifiers modifiers);
    void setZoomFactorBase(double value);
    void setView(QGraphicsView* view);

private:
    QGraphicsView* m_view;
    Qt::KeyboardModifiers m_modifiers;
    double m_zoomFactorBase;
    QPointF m_targetScenePos, m_targetViewportPos;
    bool eventFilter(QObject* object, QEvent* event);
signals:
    void zoomed(double factor);
};

} // namespace LimeReport

#endif // GRAPHICSVIEWZOOM_H