slider.h

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// $Id: slider.h,v 1.2 2005/06/13 13:12:29 rcr_muc Exp $
// slider with a coloured background
// 2005-05-31 rcr

#ifndef SLIDER_H
#define SLIDER_H

#include "rcolor.h"
#include <qpixmap.h>
#include <qframe.h>

class QPainter;

class Slider : public QFrame
{
  Q_OBJECT

  int maxValue, curValue;
  QPixmap bg, txt;

  rColor curCol;
  int iwidth, iheight;
  int triang;
  bool mouseMoving;
  int displacement;
  void useVal( int ); // extra func, used by mouseMove and mouseUp
public:
  enum mode { hue, sat, val, red, green, blue, alpha };
  Slider( mode m = hue, QWidget* parent = 0, const char* name = 0, WFlags f = 0 );
  ~Slider();
  void setColor( const rColor& );
  void setValue( int n ) { curValue = n; update(); }

private:
  mode Mode;

protected:
  void drawContents( QPainter* );
  void mouseMoveEvent( QMouseEvent* );
  void mousePressEvent( QMouseEvent* );
  void mouseReleaseEvent( QMouseEvent* );

signals:
  void colorChanged( const rColor& );
};


#endif // SLIDER_H

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