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Diffstat (limited to 'vcl/inc/vcl/region.hxx')
| -rw-r--r-- | vcl/inc/vcl/region.hxx | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/vcl/inc/vcl/region.hxx b/vcl/inc/vcl/region.hxx new file mode 100644 index 000000000000..f21cca472252 --- /dev/null +++ b/vcl/inc/vcl/region.hxx @@ -0,0 +1,163 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _SV_REGION_HXX +#define _SV_REGION_HXX + +#include <tools/gen.hxx> +#include <vcl/sv.h> +#include <vcl/dllapi.h> + +#include <basegfx/polygon/b2dpolypolygon.hxx> + +class ImplRegion; +class ImplRegionBand; +class Polygon; +class PolyPolygon; +struct ImplRegionInfo; + +// -------------- +// - RegionType - +// -------------- + +enum RegionType { REGION_NULL, REGION_EMPTY, REGION_RECTANGLE, REGION_COMPLEX }; +enum RegionOverlapType { REGION_INSIDE, REGION_OVER, REGION_OUTSIDE }; + +typedef long RegionHandle; + +// ---------- +// - Region - +// ---------- + +class VCL_DLLPUBLIC Region +{ + friend class OutputDevice; + friend class Window; + friend class Bitmap; + +private: + ImplRegion* mpImplRegion; + + SAL_DLLPRIVATE void ImplCopyData(); + SAL_DLLPRIVATE void ImplCreateRectRegion( const Rectangle& rRect ); + SAL_DLLPRIVATE void ImplCreatePolyPolyRegion( const PolyPolygon& rPolyPoly ); + SAL_DLLPRIVATE void ImplPolyPolyRegionToBandRegionFunc(); + SAL_DLLPRIVATE inline void ImplPolyPolyRegionToBandRegion(); + SAL_DLLPRIVATE const ImplRegion* ImplGetImplRegion() const { return mpImplRegion; } + SAL_DLLPRIVATE ImplRegion* ImplGetImplRegion() { return mpImplRegion; } + SAL_DLLPRIVATE void ImplBeginAddRect( ); + SAL_DLLPRIVATE sal_Bool ImplAddRect( const Rectangle& rRect ); + SAL_DLLPRIVATE void ImplEndAddRect( ); + SAL_DLLPRIVATE void ImplIntersectWithPolyPolygon( const Region& ); + SAL_DLLPRIVATE void ImplExcludePolyPolygon( const Region& ); + SAL_DLLPRIVATE void ImplUnionPolyPolygon( const Region& ); + SAL_DLLPRIVATE void ImplXOrPolyPolygon( const Region& ); + +public: // public within vcl + VCL_PLUGIN_PUBLIC bool ImplGetFirstRect( ImplRegionInfo& rImplRegionInfo, + long& nX, long& nY, long& nWidth, long& nHeight ) const; + VCL_PLUGIN_PUBLIC bool ImplGetNextRect( ImplRegionInfo& rImplRegionInfo, + long& nX, long& nY, long& nWidth, long& nHeight ) const; +#ifdef DBG_UTIL + friend const char* ImplDbgTestRegion( const void* pObj ); +#endif + +public: + Region(); + Region( RegionType eType ); + Region( const Rectangle& rRect ); + Region( const Polygon& rPolygon ); + Region( const PolyPolygon& rPolyPoly ); + Region( const basegfx::B2DPolyPolygon& ); + Region( const Region& rRegion ); + ~Region(); + + void Move( long nHorzMove, long nVertMove ); + void Scale( double fScaleX, double fScaleY ); + sal_Bool Union( const Rectangle& rRegion ); + sal_Bool Intersect( const Rectangle& rRegion ); + sal_Bool Exclude( const Rectangle& rRegion ); + sal_Bool XOr( const Rectangle& rRegion ); + sal_Bool Union( const Region& rRegion ); + sal_Bool Intersect( const Region& rRegion ); + sal_Bool Exclude( const Region& rRegion ); + sal_Bool XOr( const Region& rRegion ); + + RegionType GetType() const; + sal_Bool IsEmpty() const { return GetType() == REGION_EMPTY; }; + sal_Bool IsNull() const { return GetType() == REGION_NULL; }; + + void SetEmpty(); + void SetNull(); + + Rectangle GetBoundRect() const; + + sal_Bool HasPolyPolygon() const; + PolyPolygon GetPolyPolygon() const; + // returns an empty polypolygon in case HasPolyPolygon is sal_False + const basegfx::B2DPolyPolygon GetB2DPolyPolygon() const; + // returns a PolyPolygon either copied from the set PolyPolygon region + // or created from the constituent rectangles + basegfx::B2DPolyPolygon ConvertToB2DPolyPolygon(); + + sal_uLong GetRectCount() const; + RegionHandle BeginEnumRects(); + sal_Bool GetEnumRects( RegionHandle hRegionHandle, Rectangle& rRect ); + sal_Bool GetNextEnumRect( RegionHandle hRegionHandle, Rectangle& rRect ) + { return GetEnumRects( hRegionHandle, rRect ); } + void EndEnumRects( RegionHandle hRegionHandle ); + + sal_Bool IsInside( const Point& rPoint ) const; + sal_Bool IsInside( const Rectangle& rRect ) const; + sal_Bool IsOver( const Rectangle& rRect ) const; + + Region& operator=( const Region& rRegion ); + Region& operator=( const Rectangle& rRect ); + + sal_Bool operator==( const Region& rRegion ) const; + sal_Bool operator!=( const Region& rRegion ) const + { return !(Region::operator==( rRegion )); } + + friend VCL_DLLPUBLIC SvStream& operator>>( SvStream& rIStm, Region& rRegion ); + friend VCL_DLLPUBLIC SvStream& operator<<( SvStream& rOStm, const Region& rRegion ); + + /* workaround: faster conversion for PolyPolygons + * if half of the Polygons contained in rPolyPoly are actually + * rectangles, then the returned Region will be constructed by + * XOr'ing the contained Polygons together; in the case of + * only Rectangles this can be up to eight times faster than + * Region( const PolyPolygon& ). + * Caution: this is only useful if the Region is known to be + * changed to rectangles; e.g. if being set as clip region + */ + static Region GetRegionFromPolyPolygon( const PolyPolygon& rPolyPoly ); +}; + +#endif // _SV_REGION_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |