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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_RECT_H
#define QWT_RECT_H
#include <qrect.h>
#include "qwt_global.h"
class QPoint;
class QPointArray;
/*!
\brief Some extensions for QRect
*/
class QWT_EXPORT QwtRect : public QRect
{
public:
QwtRect();
QwtRect(const QRect &r);
QRect cutTop(int h , int distTop = 0, int distBottom = 0);
QRect cutBottom(int h, int distTop = 0, int distBottom = 0);
QRect cutLeft(int w, int distLeft = 0, int distRight = 0);
QRect cutRight(int w, int distLeft = 0, int distRight = 0);
const QwtRect &cutMargin(int mLeft, int mRight, int Top, int mBottom);
QPointArray clip(const QPointArray &) const;
private:
enum Edge { Left, Top, Right, Bottom, NEdges };
void clipEdge(Edge, const QPointArray &, QPointArray &) const;
bool insideEdge(const QPoint &, Edge edge) const;
QPoint intersectEdge(const QPoint &p1,
const QPoint &p2, Edge edge) const;
};
#endif
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