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+/* -*- 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 <vector>
+#include <functional>
+
+#include <basegfx/point/b3dpoint.hxx>
+#include <basegfx/vector/b3dvector.hxx>
+#include <basegfx/basegfxdllapi.h>
+
+namespace basegfx
+{
+ class B3DPolyPolygon;
+ class B3DPolygon;
+ class B3DRange;
+}
+
+namespace basegfx::utils
+{
+ // B3DPolygon tools
+
+ /** Check if given polygon is closed. This is kind of a
+ 'classic' method to support old polygon definitions.
+ Those old polygon definitions define the closed state
+ of the polygon using identical start and endpoints. This
+ method corrects this (removes double start/end points)
+ and sets the Closed()-state of the polygon correctly.
+ */
+ BASEGFX_DLLPUBLIC void checkClosed(B3DPolygon& rCandidate);
+
+ // Get successor and predecessor indices. Returning the same index means there
+ // is none. Same for successor.
+ BASEGFX_DLLPUBLIC sal_uInt32 getIndexOfSuccessor(sal_uInt32 nIndex, const B3DPolygon& rCandidate);
+
+ // get size of polygon. Control vectors are included in that ranges.
+ BASEGFX_DLLPUBLIC B3DRange getRange(const B3DPolygon& rCandidate);
+
+ // get length of polygon
+ BASEGFX_DLLPUBLIC double getLength(const B3DPolygon& rCandidate);
+
+ /** Apply given LineDashing to given polygon
+
+ For a description see applyLineDashing in b2dpolygontoos.hxx
+ Also 2nd version with callbacks, see comments in 2D version
+ */
+ void applyLineDashing(
+ const B3DPolygon& rCandidate,
+ const std::vector<double>& rDotDashArray,
+ std::function<void(const basegfx::B3DPolygon& rSnippet)> aLineTargetCallback,
+ double fDotDashLength = 0.0);
+ BASEGFX_DLLPUBLIC void applyLineDashing(
+ const B3DPolygon& rCandidate,
+ const ::std::vector<double>& rDotDashArray,
+ B3DPolyPolygon* pLineTarget,
+ double fDotDashLength = 0.0);
+
+ /** Create/replace normals for given 3d geometry with default normals from given center to outside.
+ rCandidate: the 3d geometry to change
+ rCenter: the center of the 3d geometry
+ */
+ B3DPolygon applyDefaultNormalsSphere( const B3DPolygon& rCandidate, const B3DPoint& rCenter);
+
+ /** invert normals for given 3d geometry.
+ */
+ BASEGFX_DLLPUBLIC B3DPolygon invertNormals( const B3DPolygon& rCandidate);
+
+ /** Create/replace texture coordinates for given 3d geometry with parallel projected one
+ rRange: the full range of the 3d geometry
+ If bChangeX, x texture coordinate will be recalculated.
+ If bChangeY, y texture coordinate will be recalculated.
+ */
+ B3DPolygon applyDefaultTextureCoordinatesParallel( const B3DPolygon& rCandidate, const B3DRange& rRange, bool bChangeX, bool bChangeY);
+
+ /** Create/replace texture coordinates for given 3d geometry with spherical one
+ rCenter: the centre of the used 3d geometry
+ If bChangeX, x texture coordinate will be recalculated.
+ If bChangeY, y texture coordinate will be recalculated.
+ */
+ B3DPolygon applyDefaultTextureCoordinatesSphere( const B3DPolygon& rCandidate, const B3DPoint& rCenter, bool bChangeX, bool bChangeY);
+
+ // isInside tests for B3DPoint. On border is not inside as long as not true is given in bWithBorder flag.
+ BASEGFX_DLLPUBLIC bool isInside(const B3DPolygon& rCandidate, const B3DPoint& rPoint, bool bWithBorder);
+
+ // calculates if given point is on given line, taking care of the numerical epsilon
+ BASEGFX_DLLPUBLIC bool isPointOnLine(const B3DPoint& rStart, const B3DPoint& rEnd, const B3DPoint& rCandidate, bool bWithPoints);
+
+ // calculates if given point is on given polygon, taking care of the numerical epsilon. Uses
+ // isPointOnLine internally
+ BASEGFX_DLLPUBLIC bool isPointOnPolygon(const B3DPolygon& rCandidate, const B3DPoint& rPoint);
+
+ // helper to get a fCut position between a plane (given with normal and a point)
+ // and a line given by start and end point
+ BASEGFX_DLLPUBLIC bool getCutBetweenLineAndPlane(const B3DVector& rPlaneNormal, const B3DPoint& rPlanePoint, const B3DPoint& rEdgeStart, const B3DPoint& rEdgeEnd, double& fCut);
+
+ /** snap some polygon coordinates to discrete coordinates
+
+ This method allows to snap some polygon points to discrete (integer) values
+ which equals e.g. a snap to discrete coordinates. It will snap points of
+ horizontal and vertical edges
+
+ @param rCandidate
+ The source polygon
+
+ @return
+ The modified version of the source polygon
+ */
+ BASEGFX_DLLPUBLIC B3DPolygon snapPointsOfHorizontalOrVerticalEdges(const B3DPolygon& rCandidate);
+
+} // end of namespace basegfx::utils
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */