1 files changed, 47 insertions, 0 deletions
diff --git a/include/basegfx/polygon/b2dpolygoncutandtouch.hxx b/include/basegfx/polygon/b2dpolygoncutandtouch.hxx
new file mode 100644
index 000000000..600ad1c5c
--- /dev/null
+++ b/include/basegfx/polygon/b2dpolygoncutandtouch.hxx
@@ -0,0 +1,47 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+#pragma once
+
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+
+namespace basegfx::utils
+{
+
+// look for self-intersections and self-touches (points on an edge) in given polygon and add
+// extra points there. Result will have no touches or intersections on an edge, only on points
+B2DPolygon addPointsAtCutsAndTouches(const B2DPolygon& rCandidate, size_t* pPointLimit = nullptr);
+
+// look for polypolygon-intersections and polypolygon-touches (point of poly A on an edge of poly B) in given tools::PolyPolygon and add
+// extra points there. Result will have no touches or intersections between contained polygons on an edge, only on points. For
+// convenience, the correction for self-intersections for each member polygon will be used, too.
+B2DPolyPolygon addPointsAtCutsAndTouches(const B2DPolyPolygon& rCandidate, size_t* pPointLimit = nullptr);
+
+// look for intersections of rCandidate with the edge from rStart to rEnd and add extra points there.
+// Points are only added in the range of the edge, not on the endless vector.
+B2DPolygon addPointsAtCuts(const B2DPolygon& rCandidate, const B2DPoint& rStart, const B2DPoint& rEnd);
+
+// look for intersections of rCandidate with the mask Polygon and add extra points there.
+// The mask polygon is assumed to be closed, even when it's not explicitly.
+B2DPolygon addPointsAtCuts(const B2DPolygon& rCandidate, const B2DPolyPolygon& rMask);
+
+} // end of namespace basegfx
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */