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#ifndef QWT_KNOB_H
#define QWT_KNOB_H
#include "sliderbase.h"
#include "sclif.h"
#include <QColor>
#include <QResizeEvent>
#include <QPaintEvent>
//---------------------------------------------------------
// Knob
//---------------------------------------------------------
class Knob : public SliderBase, public ScaleIf
{
Q_OBJECT
public:
enum Symbol { Line, Dot };
private:
bool hasScale;
int d_borderWidth;
int d_borderDist;
int d_scaleDist;
int d_maxScaleTicks;
int d_newVal;
int d_knobWidth;
int d_dotWidth;
Symbol d_symbol;
double d_angle;
double d_oldAngle;
double d_totalAngle;
double d_nTurns;
QRect kRect;
bool _faceColSel;
QColor d_faceColor;
QColor d_curFaceColor;
QColor d_altFaceColor;
QColor d_markerColor;
void recalcAngle();
void valueChange();
void rangeChange();
void drawKnob(QPainter *p, const QRect &r);
void drawMarker(QPainter *p, double arc, const QColor &c);
void paintEvent(QPaintEvent *);
void resizeEvent(QResizeEvent *e);
double getValue(const QPoint &p);
void getScrollMode( QPoint &p, const Qt::ButtonState &button, int &scrollMode, int &direction );
void scaleChange() { repaint(false); }
void fontChange(const QFont &) { repaint(false); }
public:
Knob(QWidget* parent = 0, const char *name = 0);
~Knob() {}
void setKnobWidth(int w);
void setTotalAngle (double angle);
void setBorderWidth(int bw);
void selectFaceColor(bool alt);
bool selectedFaceColor() { return _faceColSel; }
QColor faceColor() { return d_faceColor; }
void setFaceColor(const QColor c);
QColor altFaceColor() { return d_altFaceColor; }
void setAltFaceColor(const QColor c);
QColor markerColor() { return d_markerColor; }
void setMarkerColor(const QColor c);
};
#endif
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