/****************************************************************************
** $Id: qscrollbar.h,v 2.20 1999/06/17 05:12:21 ettrich Exp $
**
** Definition of QScrollBar class
**
** Created : 940427
**
** Copyright (C) 1992-1999 Troll Tech AS. All rights reserved.
**
** This file is part of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Troll Tech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** Licensees holding valid Qt Professional Edition licenses may use this
** file in accordance with the Qt Professional Edition License Agreement
** provided with the Qt Professional Edition.
**
** See http://www.troll.no/pricing.html or email sales@troll.no for
** information about the Professional Edition licensing, or see
** http://www.troll.no/qpl/ for QPL licensing information.
**
*****************************************************************************/
#ifndef QSCROLLBAR_H
#define QSCROLLBAR_H
class QTimer;
#ifndef QT_H
#include "qwidget.h"
#include "qrangecontrol.h"
#include "qdrawutil.h"
#endif // QT_H
class Q_EXPORT QScrollBar : public QWidget, public QRangeControl
{
Q_OBJECT
public:
QScrollBar( QWidget *parent, const char *name=0 );
QScrollBar( Orientation, QWidget *parent, const char *name=0 );
QScrollBar( int minValue, int maxValue, int LineStep, int PageStep,
int value, Orientation,
QWidget *parent, const char *name=0 );
virtual void setOrientation( Orientation );
Orientation orientation() const;
virtual void setTracking( bool enable );
bool tracking() const;
bool draggingSlider() const;
virtual void setPalette( const QPalette & );
QSize sizeHint() const;
QSizePolicy sizePolicy() const;
signals:
void valueChanged( int value );
void sliderPressed();
void sliderMoved( int value );
void sliderReleased();
void nextLine();
void prevLine();
void nextPage();
void prevPage();
protected:
void wheelEvent( QWheelEvent * );
void keyPressEvent( QKeyEvent * );
void resizeEvent( QResizeEvent * );
void paintEvent( QPaintEvent * );
void mousePressEvent( QMouseEvent * );
void mouseReleaseEvent( QMouseEvent * );
void mouseMoveEvent( QMouseEvent * );
void valueChange();
void stepChange();
void rangeChange();
int sliderStart() const;
QRect sliderRect() const;
void styleChange( QStyle& );
private slots:
void doAutoRepeat();
private:
void init();
void positionSliderFromValue();
int calculateValueFromSlider() const;
void sliderMinMax( int &, int & ) const;
void metrics( int &, int &, int &, int& ) const;
void startAutoRepeat();
void stopAutoRepeat();
QStyle::ScrollControl pointOver( const QPoint &p ) const;
int rangeValueToSliderPos( int val ) const;
int sliderPosToRangeValue( int val ) const;
void action( QStyle::ScrollControl control );
void drawControls( uint controls, uint activeControl ) const;
void drawControls( uint controls, uint activeControl,
QPainter *p ) const;
uint pressedControl : 8;
uint track : 1;
uint clickedAt : 1;
uint orient : 1;
int slidePrevVal;
QCOORD sliderPos;
QCOORD clickOffset;
QTimer * repeater;
void * d;
private: // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
QScrollBar( const QScrollBar & );
QScrollBar &operator=( const QScrollBar & );
#endif
};
inline void QScrollBar::setTracking( bool t )
{
track = t;
}
inline bool QScrollBar::tracking() const
{
return track;
}
inline QScrollBar::Orientation QScrollBar::orientation() const
{
return (Orientation)orient;
}
inline int QScrollBar::sliderStart() const
{
return sliderPos;
}
#endif // QSCROLLBAR_H
| Copyright © 1999 Troll Tech | Trademarks | Qt version 2.0.2
|