#ifndef VHISTOWIDGET_H
  #define VHISTOWIGET_H
  
  #include <QWidget>
  #include <opencv2/core/core.hpp>
  #include "VideoFrameProcessor.h"
  
  class VHistoWidget: public QWidget
  {
    Q_OBJECT
  
   public:
    VHistoWidget(int scale, int width = 210, int height = 130, int paletteHeight = 10, QWidget *parent = 0);
    void setHisto(const cv::Mat &vHisto);
  
    public slots:
      void setScale(int scale);
    
   protected:
      void paintEvent(QPaintEvent *event);
  
   private:
      int m_width;
      int m_height;
      int m_paletteHeight;
      int m_scale;
      VideoFrameProcessor *m_processor;
      cv::Mat m_vHisto;
  };
  
  #endif