qwt_compass_rose.h
/******************************************************************************
* 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_ROSE_H
#define QWT_COMPASS_ROSE_H
#include "qwt_global.h"
#include <qpalette.h>
class QPainter;
class QWT_EXPORT QwtCompassRose
{
public:
QwtCompassRose();
virtual ~QwtCompassRose();
virtual void setPalette( const QPalette& );
const QPalette& palette() const;
virtual void draw( QPainter* painter,
const QPointF& center, double radius, double north,
QPalette::ColorGroup colorGroup = QPalette::Active ) const = 0;
private:
Q_DISABLE_COPY(QwtCompassRose)
QPalette m_palette;
};
class QWT_EXPORT QwtSimpleCompassRose : public QwtCompassRose
{
public:
QwtSimpleCompassRose( int numThorns = 8, int numThornLevels = -1 );
virtual ~QwtSimpleCompassRose();
void setWidth( double );
double width() const;
void setNumThorns( int );
int numThorns() const;
void setNumThornLevels( int );
int numThornLevels() const;
void setShrinkFactor( double factor );
double shrinkFactor() const;
virtual void draw( QPainter*,
const QPointF& center, double radius, double north,
QPalette::ColorGroup = QPalette::Active ) const QWT_OVERRIDE;
static void drawRose( QPainter*, const QPalette&,
const QPointF& center, double radius, double north, double width,
int numThorns, int numThornLevels, double shrinkFactor );
private:
class PrivateData;
PrivateData* m_data;
};
#endif
QwtCompassRose
Abstract base class for a compass rose.
Definition: qwt_compass_rose.h:22
QwtCompassRose::draw
virtual void draw(QPainter *painter, const QPointF &center, double radius, double north, QPalette::ColorGroup colorGroup=QPalette::Active) const =0
QwtSimpleCompassRose
A simple rose for QwtCompass.
Definition: qwt_compass_rose.h:53