11c5023a77
* Added a new class BAffineTransform, currently in the BPrivate namespace and the inofficial "shared kit". * Extended BPolygon to be transformable by a BAffineTransform. Thanks a lot! Minor fixes by myself: * The class accidentally still derived from agg::trans_affine. * Added then missing comparator operators. * Swapped the BPoint* and count arguments of Apply(), since that seems to be the more common order in the other Be API. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28176 a95241bf-73f2-0310-859d-f6bbb57e9c96
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/*
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* Copyright 2001-2007, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Marc Flerackers, mflerackers@androme.be
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*/
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#ifndef _POLYGON_H
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#define _POLYGON_H
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#include <BeBuild.h>
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#include <InterfaceDefs.h>
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#include <Rect.h>
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namespace BPrivate { class BAffineTransform; }
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using namespace BPrivate;
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class BPolygon {
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public:
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BPolygon(const BPoint *ptArray, int32 numPoints);
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BPolygon(const BPolygon *polygon);
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BPolygon();
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virtual ~BPolygon();
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BPolygon &operator=(const BPolygon &from);
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BRect Frame() const;
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void AddPoints(const BPoint *ptArray, int32 numPoints);
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int32 CountPoints() const;
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void MapTo(BRect srcRect, BRect dstRect);
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void PrintToStream() const;
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void Transform(const BAffineTransform& transform);
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BPolygon& TransformBySelf(const BAffineTransform& transform);
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BPolygon* TransformByCopy(const BAffineTransform& transform) const;
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private:
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friend class BView;
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void _ComputeBounds();
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void _MapPoint(BPoint *point, BRect srcRect, BRect dstRect);
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void _MapRectangle(BRect *rect, BRect srcRect, BRect dstRect);
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private:
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BRect fBounds;
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uint32 fCount;
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BPoint *fPoints;
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};
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#endif // _POLYGON_H_
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