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33fc476d89
* require qwt >=6.2 (and fallback to internal 6.3 if system's qwt doesn't suffice) * debian doesn't have qwt for Qt6 and won't have it for trixie
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/******************************************************************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#ifndef QWT_CLIPPER_H
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#define QWT_CLIPPER_H
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#include "qwt_global.h"
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class QwtInterval;
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class QPointF;
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class QRect;
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class QRectF;
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class QPolygon;
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class QPolygonF;
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#if QT_VERSION < 0x060000
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template< typename T > class QVector;
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#endif
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/*!
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\brief Some clipping algorithms
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*/
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namespace QwtClipper
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{
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QWT_EXPORT void clipPolygon( const QRect&,
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QPolygon&, bool closePolygon = false );
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QWT_EXPORT void clipPolygon( const QRectF&,
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QPolygon&, bool closePolygon = false );
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QWT_EXPORT void clipPolygonF( const QRectF&,
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QPolygonF&, bool closePolygon = false );
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QWT_EXPORT QPolygon clippedPolygon( const QRect&,
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const QPolygon&, bool closePolygon = false );
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QWT_EXPORT QPolygon clippedPolygon( const QRectF&,
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const QPolygon&, bool closePolygon = false );
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QWT_EXPORT QPolygonF clippedPolygonF( const QRectF&,
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const QPolygonF&, bool closePolygon = false );
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QWT_EXPORT QVector< QwtInterval > clipCircle(
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const QRectF&, const QPointF&, double radius );
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};
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#endif
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