/****************************************************************************** $Id: qt/src/widgets/qdial.h   2.3.12   edited 2005-10-27 $**** 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 QTimer;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 );    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 * );    void wheelEvent( QWheelEvent * );    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