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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qdial.h</h1>
<p>This is the verbatim text of the qdial.h include file. It is provided only for illustration; the copyright remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id: qt/qdial.h 3.1.1 edited Nov 7 16:55 $
**
** Definition of the dial widget
**
** Created : 990104
**
** Copyright (C) 1999-2000 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 QDIAL_H
#define QDIAL_H
#ifndef QT_H
#include "qwidget.h"
#include "qrangecontrol.h"
#endif // QT_H
#ifndef QT_NO_DIAL
class QDialPrivate;
class Q_EXPORT QDial: public QWidget, public QRangeControl
{
Q_OBJECT
Q_PROPERTY( bool tracking READ tracking WRITE setTracking )
Q_PROPERTY( bool wrapping READ wrapping WRITE setWrapping )
Q_PROPERTY( int notchSize READ notchSize )
Q_PROPERTY( double notchTarget READ notchTarget WRITE setNotchTarget )
Q_PROPERTY( bool notchesVisible READ notchesVisible WRITE setNotchesVisible )
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 )
public:
QDial( QWidget* parent=0, const char* name=0, WFlags f = 0 );
QDial( int minValue, int maxValue, int pageStep, int value,
QWidget* parent=0, const char* name=0 );
~QDial();
bool tracking() const;
bool wrapping() const;
int notchSize() const;
virtual void setNotchTarget( double );
double notchTarget() const;
bool notchesVisible() const;
QSize sizeHint() const;
QSize minimumSizeHint() 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;
public slots:
virtual void setValue( int );
void addLine();
void subtractLine();
void addPage();
void subtractPage();
virtual void setNotchesVisible( bool b );
virtual void setWrapping( bool on );
virtual void setTracking( bool enable );
signals:
void valueChanged( int value );
void dialPressed();
void dialMoved( int value );
void dialReleased();
protected:
void resizeEvent( QResizeEvent * );
void paintEvent( QPaintEvent * );
void keyPressEvent( QKeyEvent * );
void mousePressEvent( QMouseEvent * );
void mouseReleaseEvent( QMouseEvent * );
void mouseMoveEvent( QMouseEvent * );
#ifndef QT_NO_WHEELEVENT
void wheelEvent( QWheelEvent * );
#endif
void focusInEvent( QFocusEvent * );
void focusOutEvent( QFocusEvent * );
void valueChange();
void rangeChange();
virtual void repaintScreen( const QRect *cr = 0 );
private:
QDialPrivate * d;
int valueFromPoint( const QPoint & ) const;
double angle( const QPoint &, const QPoint & ) const;
QPointArray calcArrow( double &a ) const;
QRect calcDial() const;
int calcBigLineSize() const;
void calcLines();
private: // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
QDial( const QDial & );
QDial &operator=( const QDial & );
#endif
};
#endif // QT_NO_DIAL
#endif
</pre>
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