qwt_compass.h
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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_COMPASS_H
#define QWT_COMPASS_H 1
#include "qwt_global.h"
#include "qwt_dial.h"
#include <qstring.h>
#include <qmap.h>
class QwtCompassRose;
/*!
\brief A Compass Widget
QwtCompass is a widget to display and enter directions. It consists
of a scale, an optional needle and rose.
\image html dials1.png
\note The examples/dials example shows how to use QwtCompass.
*/
class QWT_EXPORT QwtCompass: public QwtDial
{
Q_OBJECT
public:
explicit QwtCompass( QWidget* parent = NULL );
virtual ~QwtCompass();
void setRose( QwtCompassRose *rose );
const QwtCompassRose *rose() const;
QwtCompassRose *rose();
const QMap<double, QString> &labelMap() const;
QMap<double, QString> &labelMap();
void setLabelMap( const QMap<double, QString> &map );
protected:
virtual QwtText scaleLabel( double value ) const;
virtual void drawRose( QPainter *, const QPointF ¢er,
double radius, double north, QPalette::ColorGroup ) const;
virtual void drawScaleContents( QPainter *,
const QPointF ¢er, double radius ) const;
virtual void keyPressEvent( QKeyEvent * );
private:
void initCompass();
class PrivateData;
PrivateData *d_data;
};
#endif