#ifndef WAVEFORMRENDERERABSTRACT_H
#define WAVEFORMRENDERERABSTRACT_H

#include <QDomNode>
#include <QPaintEvent>
#include <QPainter>

#include "skin/skincontext.h"

class WaveformWidgetRenderer;

class WaveformRendererAbstract {
  public:
    explicit WaveformRendererAbstract(
            WaveformWidgetRenderer* waveformWidgetRenderer);
    virtual ~WaveformRendererAbstract();

    virtual bool init() {return true; }
    virtual void setup(const QDomNode& node, const SkinContext& context) = 0;
    virtual void draw(QPainter* painter, QPaintEvent* event) = 0;

    virtual void onResize() {}
    virtual void onSetTrack() {}

  protected:
    bool isDirty() const {
        return m_dirty;
    }
    void setDirty(bool dirty = true) {
        m_dirty = dirty;
    }

    double scaleFactor() const {
        return m_scaleFactor;
    }
    void setScaleFactor(double scaleFactor) {
        m_scaleFactor = scaleFactor;
    }

    WaveformWidgetRenderer* m_waveformRenderer;

  private:

    bool m_dirty;
    double m_scaleFactor;

    friend class WaveformWidgetRenderer;
};

#endif // WAVEFORMRENDERERABSTRACT_H