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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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Qt Toolkit - qscrollbar.h include file
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<h1 align=center>qscrollbar.h</h1><br clear="all">
This is the verbatim text of the qscrollbar.h include file. It is
provided only for illustration; the copyright
remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id: qt/src/widgets/qscrollbar.h 2.3.2 edited 2001-01-26 $
**
** Definition of QScrollBar class
**
** Created : 940427
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of the widgets module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef QSCROLLBAR_H
#define QSCROLLBAR_H
class <a href="qtimer.html">QTimer</a>;
#ifndef QT_H
#include "qwidget.h"
#include "qrangecontrol.h"
#include "qdrawutil.h" // REMOVE THIS IN 3.0
#endif // QT_H
#ifndef QT_NO_SCROLLBAR
class Q_EXPORT <a href="qscrollbar.html">QScrollBar</a> : public <a href="qwidget.html">QWidget</a>, public <a href="qrangecontrol.html">QRangeControl</a>
{
Q_OBJECT
Q_PROPERTY( int minValue READ minValue WRITE setMinValue )
Q_PROPERTY( int maxValue READ maxValue WRITE setMaxValue )
Q_PROPERTY( int lineStep READ lineStep WRITE setLineStep )
Q_PROPERTY( int pageStep READ pageStep WRITE setPageStep )
Q_PROPERTY( int value READ value WRITE setValue )
Q_PROPERTY( bool tracking READ tracking WRITE setTracking )
Q_PROPERTY( bool draggingSlider READ draggingSlider )
Q_PROPERTY( Orientation orientation READ orientation WRITE setOrientation )
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;
int minValue() const;
int maxValue() const;
void setMinValue( int );
void setMaxValue( int );
int lineStep() const;
int pageStep() const;
void setLineStep( int );
void setPageStep( int );
int value() const;
void setValue( int );
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 // QT_NO_SCROLLBAR
#endif // QSCROLLBAR_H
</pre>
<p><address><hr><div align="center">
<table width="100%" cellspacing="0" border="0"><tr>
<td>Copyright 2001 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.2</div>
</table></div></address></body></html>
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