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| 1 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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| 2 | * Qwt Widget Library
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| 3 | * Copyright (C) 1997 Josef Wilgen
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| 4 | * Copyright (C) 2002 Uwe Rathmann
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| 5 | *
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| 6 | * This library is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the Qwt License, Version 1.0
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| 8 | *****************************************************************************/
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| 9 |
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| 10 | #ifndef QWT_CLIPPER_H
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| 11 | #define QWT_CLIPPER_H
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| 12 |
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| 13 | #include "qwt_global.h"
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| 14 | #include "qwt_interval.h"
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| 15 | #include <qpolygon.h>
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| 16 | #include <qvector.h>
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| 17 |
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| 18 | class QRect;
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| 19 | class QRectF;
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| 20 |
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| 21 | /*!
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| 22 | \brief Some clipping algos
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| 23 | */
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| 24 |
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| 25 | class QWT_EXPORT QwtClipper
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| 26 | {
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| 27 | public:
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| 28 | static QPolygon clipPolygon( const QRect &,
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| 29 | const QPolygon &, bool closePolygon = false );
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| 30 | static QPolygonF clipPolygonF( const QRectF &,
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| 31 | const QPolygonF &, bool closePolygon = false );
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| 32 |
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| 33 | static QVector<QwtInterval> clipCircle(
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| 34 | const QRectF &, const QPointF &, double radius );
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| 35 | };
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| 36 |
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| 37 | #endif
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