qwt_point_mapper.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_POINT_MAPPER_H
#define QWT_POINT_MAPPER_H
#include "qwt_global.h"
#include "qwt_series_data.h"
#include <qimage.h>
class QwtScaleMap;
class QPolygonF;
class QPolygon;
class QWT_EXPORT QwtPointMapper
{
public:
enum TransformationFlag
{
RoundPoints = 0x01,
WeedOutPoints = 0x02
};
typedef QFlags<TransformationFlag> TransformationFlags;
QwtPointMapper();
~QwtPointMapper();
void setFlags( TransformationFlags );
TransformationFlags flags() const;
void setFlag( TransformationFlag, bool on = true );
bool testFlag( TransformationFlag ) const;
void setBoundingRect( const QRectF & );
QRectF boundingRect() const;
QPolygonF toPolygonF( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QwtSeriesData<QPointF> *series, int from, int to ) const;
QPolygon toPolygon( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QwtSeriesData<QPointF> *series, int from, int to ) const;
QPolygon toPoints( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QwtSeriesData<QPointF> *series, int from, int to ) const;
QPolygonF toPointsF( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QwtSeriesData<QPointF> *series, int from, int to ) const;
QImage toImage( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QwtSeriesData<QPointF> *series, int from, int to,
const QPen &, bool antialiased, uint numThreads ) const;
private:
class PrivateData;
PrivateData *d_data;
};
Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPointMapper::TransformationFlags )
#endif
QwtScaleMap
A scale map.
Definition: qwt_scale_map.h:30
QwtPointMapper::TransformationFlags
QFlags< TransformationFlag > TransformationFlags
Flags affecting the transformation process.
Definition: qwt_point_mapper.h:52
QwtSeriesData< QPointF >
QwtPointMapper::TransformationFlag
TransformationFlag
Flags affecting the transformation process.
Definition: qwt_point_mapper.h:36
QwtPointMapper
A helper class for translating a series of points.
Definition: qwt_point_mapper.h:29