Qwt User's Guide  6.1.6
qwt_clipper.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2  * Qwt Widget Library
3  * Copyright (C) 1997 Josef Wilgen
4  * Copyright (C) 2002 Uwe Rathmann
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the Qwt License, Version 1.0
8  *****************************************************************************/
9 
10 #ifndef QWT_CLIPPER_H
11 #define QWT_CLIPPER_H
12 
13 #include "qwt_global.h"
14 #include "qwt_interval.h"
15 #include <qpolygon.h>
16 #include <qvector.h>
17 
18 class QRect;
19 class QRectF;
20 
25 class QWT_EXPORT QwtClipper
26 {
27 public:
28  static QPolygon clipPolygon( const QRect &,
29  const QPolygon &, bool closePolygon = false );
30  static QPolygon clipPolygon( const QRectF &,
31  const QPolygon &, bool closePolygon = false );
32 
33  static QPolygonF clipPolygonF( const QRectF &,
34  const QPolygonF &, bool closePolygon = false );
35 
36  static QVector<QwtInterval> clipCircle(
37  const QRectF &, const QPointF &, double radius );
38 };
39 
40 #endif
QwtClipper
Some clipping algorithms.
Definition: qwt_clipper.h:26