rootsrenderer.h

#ifndef xmpsolve_ROOTSRENDERER_H
#define xmpsolve_ROOTSRENDERER_H
 
#include "root.h"
#include "rootsmodel.h"
#include <QPainter>
#include <QPaintEvent>
 
namespace xmpsolve {
 
class RootsRenderer
{
 
public:
    explicit RootsRenderer();
 
    void handlePaintEvent(QPainter& painter, int w, int h, QPaintEvent *);

    void zoomIn();

    void zoomOut();

    void setCenter(double x, double y);

    QPointF center() { return mCenter; }
 
protected:

    void reloadRoots();

    QPointF scalePoint(QPointF point, int width, int height);
 
    QPointF scaleVector(QPointF point, int width, int height);
    QPointF scaleVectorInverse(QPointF point, int width, int height);

    void drawTicks(QPainter& painter, double w, double h);

    QList<QPointF> m_roots;

    double m_maxRealModule;

    double m_maxImagModule;

    RootsModel* m_model;
 
private:
    QPointF mCenter;
    
};
 
} // namespace xmpsolve
 
#endif // xmpsolve_ROOTSRENDERER_H