qwt_abstract_slider.h
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_ABSTRACT_SLIDER_H
#define QWT_ABSTRACT_SLIDER_H
#include "qwt_global.h"
#include "qwt_abstract_scale.h"
class QWT_EXPORT QwtAbstractSlider: public QwtAbstractScale
{
Q_OBJECT
Q_PROPERTY( double value READ value WRITE setValue )
Q_PROPERTY( uint totalSteps READ totalSteps WRITE setTotalSteps )
Q_PROPERTY( uint singleSteps READ singleSteps WRITE setSingleSteps )
Q_PROPERTY( uint pageSteps READ pageSteps WRITE setPageSteps )
Q_PROPERTY( bool stepAlignment READ stepAlignment WRITE setStepAlignment )
Q_PROPERTY( bool readOnly READ isReadOnly WRITE setReadOnly )
Q_PROPERTY( bool tracking READ isTracking WRITE setTracking )
Q_PROPERTY( bool wrapping READ wrapping WRITE setWrapping )
Q_PROPERTY( bool invertedControls READ invertedControls WRITE setInvertedControls )
public:
explicit QwtAbstractSlider( QWidget *parent = NULL );
virtual ~QwtAbstractSlider();
void setValid( bool );
bool isValid() const;
double value() const;
void setWrapping( bool );
bool wrapping() const;
void setTotalSteps( uint );
uint totalSteps() const;
void setSingleSteps( uint );
uint singleSteps() const;
void setPageSteps( uint );
uint pageSteps() const;
void setStepAlignment( bool );
bool stepAlignment() const;
void setTracking( bool );
bool isTracking() const;
void setReadOnly( bool );
bool isReadOnly() const;
void setInvertedControls( bool );
bool invertedControls() const;
public Q_SLOTS:
void setValue( double value );
Q_SIGNALS:
void valueChanged( double value );
void sliderPressed();
void sliderReleased();
void sliderMoved( double value );
protected:
virtual void mousePressEvent( QMouseEvent * );
virtual void mouseReleaseEvent( QMouseEvent * );
virtual void mouseMoveEvent( QMouseEvent * );
virtual void keyPressEvent( QKeyEvent * );
virtual void wheelEvent( QWheelEvent * );
virtual bool isScrollPosition( const QPoint &pos ) const = 0;
virtual double scrolledTo( const QPoint &pos ) const = 0;
void incrementValue( int stepCount );
virtual void scaleChange();
protected:
virtual void sliderChange();
double incrementedValue(
double value, int stepCount ) const;
private:
double alignedValue( double ) const;
double boundedValue( double ) const;
class PrivateData;
PrivateData *d_data;
};
#endif
QwtAbstractSlider::valueChanged
void valueChanged(double value)
Notify a change of value.
QwtAbstractSlider::isScrollPosition
virtual bool isScrollPosition(const QPoint &pos) const =0
Determine what to do when the user presses a mouse button.
QwtAbstractSlider::sliderReleased
void sliderReleased()
QwtAbstractSlider
An abstract base class for slider widgets with a scale.
Definition: qwt_abstract_slider.h:33
QwtAbstractSlider::sliderPressed
void sliderPressed()
QwtAbstractScale::scaleChange
virtual void scaleChange()
Notify changed scale.
Definition: qwt_abstract_scale.cpp:414
QwtAbstractSlider::scrolledTo
virtual double scrolledTo(const QPoint &pos) const =0
Determine the value for a new position of the movable part of the slider.
QwtAbstractSlider::sliderMoved
void sliderMoved(double value)
QwtAbstractScale
An abstract base class for widgets having a scale.
Definition: qwt_abstract_scale.h:37