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/****************************************************************************
**
** Definition of the dial widget
**
** Created : 990104
**
** Copyright (C) 1999-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the widgets module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file. Licensees holding valid Qt
** Commercial 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 WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#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
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