qt_demoe/qwtdemo/examples/realtime/scrollbar.h

54 lines
1.1 KiB
C++

#ifndef _SCROLLBAR_H
#define _SCROLLBAR_H 1
#include <qscrollbar.h>
class ScrollBar: public QScrollBar
{
Q_OBJECT
public:
ScrollBar( QWidget *parent = NULL );
ScrollBar( Qt::Orientation, QWidget *parent = NULL );
ScrollBar( double minBase, double maxBase,
Qt::Orientation o, QWidget *parent = NULL );
void setInverted( bool );
bool isInverted() const;
double minBaseValue() const;
double maxBaseValue() const;
double minSliderValue() const;
double maxSliderValue() const;
int extent() const;
Q_SIGNALS:
void sliderMoved( Qt::Orientation, double, double );
void valueChanged( Qt::Orientation, double, double );
public Q_SLOTS:
virtual void setBase( double min, double max );
virtual void moveSlider( double min, double max );
protected:
void sliderRange( int value, double &min, double &max ) const;
int mapToTick( double ) const;
double mapFromTick( int ) const;
private Q_SLOTS:
void catchValueChanged( int value );
void catchSliderMoved( int value );
private:
void init();
bool d_inverted;
double d_minBase;
double d_maxBase;
int d_baseTicks;
};
#endif