qwt_clipper.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_CLIPPER_H
#define QWT_CLIPPER_H

#include "qwt_global.h"
#include "qwt_array.h"
#include "qwt_polygon.h"
#include "qwt_double_rect.h"
#include "qwt_double_interval.h"

class QRect;

/*!
  \brief Some clipping algos
*/

class QWT_EXPORT QwtClipper
{
public:
    static QwtPolygon clipPolygon(const QRect &, const QwtPolygon &);
    static QwtPolygonF clipPolygonF(const QwtDoubleRect &, const QwtPolygonF &);

#if QT_VERSION >= 0x040000
    static QwtArray<QwtDoubleInterval> clipCircle(
        const QwtDoubleRect &, const QwtDoublePoint &, double radius);
#endif
};

#endif