diff options
Diffstat (limited to 'basegfx/inc/basegfx/polygon/b2dpolypolygoncutter.hxx')
| -rw-r--r-- | basegfx/inc/basegfx/polygon/b2dpolypolygoncutter.hxx | 51 |
1 files changed, 27 insertions, 24 deletions
diff --git a/basegfx/inc/basegfx/polygon/b2dpolypolygoncutter.hxx b/basegfx/inc/basegfx/polygon/b2dpolypolygoncutter.hxx index 7bf821cb6640..dcd4841f82bc 100644 --- a/basegfx/inc/basegfx/polygon/b2dpolypolygoncutter.hxx +++ b/basegfx/inc/basegfx/polygon/b2dpolypolygoncutter.hxx @@ -1,30 +1,21 @@ /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/************************************************************************* +/* + * This file is part of the LibreOffice project. * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. * - * Copyright 2000, 2010 Oracle and/or its affiliates. + * This file incorporates work covered by the following license notice: * - * 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. - * - ************************************************************************/ + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ #ifndef _BGFX_POLYGON_B2DPOLYPOLYGONCUTTER_HXX #define _BGFX_POLYGON_B2DPOLYPOLYGONCUTTER_HXX @@ -47,6 +38,11 @@ namespace basegfx // contained sub-polygons in a preparing step and to explicitly correct their orientations. BASEGFX_DLLPUBLIC B2DPolyPolygon solveCrossovers(const B2DPolyPolygon& rCandidate); + // Version for single polygons. This is for solving self-intersections. Result will be free of + // crossovers. When result contains multiple polygons, it may be necessary to rearrange their + // orientations since holes may have been created (use correctOrientations eventually). + BASEGFX_DLLPUBLIC B2DPolyPolygon solveCrossovers(const B2DPolygon& rCandidate); + // Neutral polygons will be stripped. Neutral polygons are ones who's orientation is // neutral, so normally they have no volume -> just closed paths. A polygon with the same // positive and negative oriented volume is also neutral, so this may not be wanted. It is @@ -66,6 +62,13 @@ namespace basegfx // can be combined for logical polygon operations or polygon clipping. BASEGFX_DLLPUBLIC B2DPolyPolygon stripDispensablePolygons(const B2DPolyPolygon& rCandidate, bool bKeepAboveZero = false); + // geometrically convert PolyPolygons which are proposed to use nonzero fill rule + // to a representation where evenodd paint will give the same result. To do this + // all intersections and self-intersections get solved (the polygons will be rearranged + // if needed). Then all polygons which are inside another one with the same orientation + // get deleted + BASEGFX_DLLPUBLIC B2DPolyPolygon createNonzeroConform(const B2DPolyPolygon& rCandidate); + // For convenience: The four basic operations OR, XOR, AND and DIFF for // two PolyPolygons. These are combinations of the above methods. To not be forced // to do evtl. already done preparations twice, You have to do the operations Yourself. @@ -105,7 +108,7 @@ namespace basegfx @return A single PolyPolygon containing the Or-merged result */ - BASEGFX_DLLPUBLIC B2DPolyPolygon mergeToSinglePolyPolygon(const std::vector< basegfx::B2DPolyPolygon >& rInput); + BASEGFX_DLLPUBLIC B2DPolyPolygon mergeToSinglePolyPolygon(const B2DPolyPolygonVector& rInput); } // end of namespace tools } // end of namespace basegfx |