qwt_compass_rose.h
/* -*- 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_ROSE_H
#define QWT_COMPASS_ROSE_H 1
#include "qwt_global.h"
#include <qpalette.h>
class QPainter;
class QWT_EXPORT QwtCompassRose
{
public:
virtual ~QwtCompassRose() {};
virtual void setPalette( const QPalette &p )
{
d_palette = p;
}
const QPalette &palette() const
{
return d_palette;
}
virtual void draw( QPainter *painter,
const QPointF &center, double radius, double north,
QPalette::ColorGroup colorGroup = QPalette::Active ) const = 0;
private:
QPalette d_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;
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 *d_data;
};
#endif
QwtCompassRose
Abstract base class for a compass rose.
Definition: qwt_compass_rose.h:21
QwtCompassRose::draw
virtual void draw(QPainter *painter, const QPointF &center, double radius, double north, QPalette::ColorGroup colorGroup=QPalette::Active) const =0
QwtCompassRose::palette
const QPalette & palette() const
Definition: qwt_compass_rose.h:34
QwtCompassRose::setPalette
virtual void setPalette(const QPalette &p)
Assign a palette.
Definition: qwt_compass_rose.h:28
QwtCompassRose::~QwtCompassRose
virtual ~QwtCompassRose()
Destructor.
Definition: qwt_compass_rose.h:25
QwtSimpleCompassRose
A simple rose for QwtCompass.
Definition: qwt_compass_rose.h:59