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authorArmin Weiss <aw@openoffice.org>2003-10-28 10:26:57 +0000
committerArmin Weiss <aw@openoffice.org>2003-10-28 10:26:57 +0000
commit5c35c4ae404294fede343dc4668d0b57c580b485 (patch)
treeb46c73fca4ec3d4b3a8b330bfc2a412fd1eb6749 /basegfx/source/polygon/b2dpolygontools.cxx
parent999a109d17bdce1000f7a69417de51668334c7fc (diff)
basegfx reorganization
Diffstat (limited to 'basegfx/source/polygon/b2dpolygontools.cxx')
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+/*************************************************************************
+ *
+ * $RCSfile: b2dpolygontools.cxx,v $
+ *
+ * $Revision: 1.1 $
+ *
+ * last change: $Author: aw $ $Date: 2003-10-28 11:23:54 $
+ *
+ * The Contents of this file are made available subject to the terms of
+ * either of the following licenses
+ *
+ * - GNU Lesser General Public License Version 2.1
+ * - Sun Industry Standards Source License Version 1.1
+ *
+ * Sun Microsystems Inc., October, 2000
+ *
+ * GNU Lesser General Public License Version 2.1
+ * =============================================
+ * Copyright 2000 by Sun Microsystems, Inc.
+ * 901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software Foundation.
+ *
+ * This library 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 for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ *
+ * Sun Industry Standards Source License Version 1.1
+ * =================================================
+ * The contents of this file are subject to the Sun Industry Standards
+ * Source License Version 1.1 (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.openoffice.org/license.html.
+ *
+ * Software provided under this License is provided on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ * See the License for the specific provisions governing your rights and
+ * obligations concerning the Software.
+ *
+ * The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ * Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ * All Rights Reserved.
+ *
+ * Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#ifndef _BGFX_POLYGON_B2DPOLYGONTOOLS_HXX
+#include <basegfx/inc/polygon/b2dpolygontools.hxx>
+#endif
+
+#ifndef _BGFX_POLYGON_B2DPOLYGON_HXX
+#include <basegfx/inc/polygon/b2dpolygon.hxx>
+#endif
+
+#ifndef _BGFX_CURVE_B2DCUBICBEZIER_HXX
+#include <basegfx/inc/curve/b2dcubicbezier.hxx>
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace basegfx
+{
+ namespace polygon
+ {
+ namespace tools
+ {
+ // B2DPolygon tools
+ void checkClosed(polygon::B2DPolygon& rCandidate)
+ {
+ while(rCandidate.count() > 1L)
+ {
+ bool bFirstLastPointEqual(
+ rCandidate.getB2DPoint(0L) == rCandidate.getB2DPoint(rCandidate.count() - 1L));
+
+ if(bFirstLastPointEqual)
+ {
+ rCandidate.setClosed(true);
+ rCandidate.remove(rCandidate.count() - 1L);
+ }
+ }
+ }
+
+ // Checks if one of the control vectors is used
+ bool isEdgeBezier(const polygon::B2DPolygon& rPolygon, sal_uInt32 nEdgeIndex)
+ {
+ if(rPolygon.areControlPointsUsed())
+ {
+ DBG_ASSERT(nEdgeIndex < rPolygon.count(), "EdgeIndex out of range (!)");
+
+ if(!rPolygon.getControlPointA(nEdgeIndex).equalZero())
+ return true;
+
+ if(!rPolygon.getControlPointB(nEdgeIndex).equalZero())
+ return true;
+ }
+
+ return false;
+ }
+
+ bool isEdgeTrivialBezier(const polygon::B2DPolygon& rPolygon, sal_uInt32 nEdgeIndex)
+ {
+ if(rPolygon.areControlPointsUsed())
+ {
+ DBG_ASSERT(nEdgeIndex < rPolygon.count(), "EdgeIndex out of range (!)");
+ const sal_uInt32 nEndIndex((nEdgeIndex + 1L) % rPolygon.count());
+
+ curve::B2DCubicBezier aCubicBezier(
+ rPolygon.getB2DPoint(nEdgeIndex),
+ rPolygon.getControlPointA(nEdgeIndex),
+ rPolygon.getControlPointB(nEdgeIndex),
+ rPolygon.getB2DPoint(nEndIndex));
+
+ aCubicBezier.testAndSolveTrivialBezier();
+
+ return !aCubicBezier.isBezier();
+ }
+
+ return true;
+ }
+ } // end of namespace tools
+ } // end of namespace polygon
+} // end of namespace basegfx
+
+//////////////////////////////////////////////////////////////////////////////
+
+// eof