INTEGRATION: CWS canvas02 (1.1.6); FILE ADDED

2005/10/11 15:39:24 thb 1.1.6.5: #i54170# Corrected license headers
2005/10/10 21:45:41 thb 1.1.6.4: #i48939# Renamed triangle list on range clip method
2005/09/05 16:33:17 mbu 1.1.6.3: clipPolygonOnRange() for triangle lists
2005/08/01 13:49:11 thb 1.1.6.2: #i48939# 2nd merge from CWS aw024
2005/07/28 10:10:42 thb 1.1.6.1: Join from cws_src680_aw024: #i48939# and new rendering subsystem need AW's clipper changes

1 files changed, 102 insertions, 0 deletions

diff --git a/basegfx/inc/basegfx/polygon/b2dpolygonclipper.hxx b/basegfx/inc/basegfx/polygon/b2dpolygonclipper.hxx
new file mode 100644
index 000000000000..57a92c19b59e
--- /dev/null
+++ b/basegfx/inc/basegfx/polygon/b2dpolygonclipper.hxx
@@ -0,0 +1,102 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: b2dpolygonclipper.hxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: kz $ $Date: 2005-11-02 13:53:12 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2005 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
+ *
+ ************************************************************************/
+
+#ifndef _BGFX_POLYPOLYGON_B2DPOLYGONCLIPPER_HXX
+#define _BGFX_POLYPOLYGON_B2DPOLYGONCLIPPER_HXX
+
+#ifndef _BGFX_POLYGON_B2DPOLYPOLYGON_HXX
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#endif
+
+#ifndef _BGFX_POLYGON_B2DPOLYGON_HXX
+#include <basegfx/polygon/b2dpolygon.hxx>
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace basegfx
+{
+    // predefinitions
+    class B2DRange;
+
+    namespace tools
+    {
+        // This method clips the given PolyPolygon against a horizontal or vertical axis (parallell to X or Y axis). The axis is
+        // defined by bParallelToXAxis (true -> it's parallel to the X-Axis of the coordinate system, else to the Y-Axis) and the
+        // fValueOnOtherAxis (gives the translation to the coordinate system axis). For example, when You want to define
+        // a clip axis parallel to X.Axis and 100 above it, use bParallelToXAxis = true and fValueOnOtherAxis = 100.
+        // The value bAboveAxis defines on which side the return value will be (true -> above X, right of Y).
+        // The switch bStroke decides if the polygon is interpreted as area (false) or strokes (true).
+        B2DPolyPolygon clipPolyPolygonOnParallelAxis(const B2DPolyPolygon& rCandidate, bool bParallelToXAxis, bool bAboveAxis, double fValueOnOtherAxis, bool bStroke);
+
+        // version for Polygons
+        B2DPolyPolygon clipPolygonOnParallelAxis(const B2DPolygon& rCandidate, bool bParallelToXAxis, bool bAboveAxis, double fValueOnOtherAxis, bool bStroke);
+
+        // Clip the given PolyPolygon against the given range. bInside defines if the result will contain the
+        // parts which are contained in the range or vice versa.
+        // The switch bStroke decides if the polygon is interpreted as area (false) or strokes (true).
+        B2DPolyPolygon clipPolyPolygonOnRange(const B2DPolyPolygon& rCandidate, const B2DRange& rRange, bool bInside, bool bStroke);
+
+        // version for Polygons
+        B2DPolyPolygon clipPolygonOnRange(const B2DPolygon& rCandidate, const B2DRange& rRange, bool bInside, bool bStroke);
+
+        // Clip given PolyPolygon against the endless edge defined by the given two points. bAbove defines on which side
+        // of the edge the result will be together with the definition of the edge. If the edge is seen as a vector
+        // from A to B and bAbove is true, the result will contain the geometry left of the vector.
+        // The switch bStroke decides if the polygon is interpreted as area (false) or strokes (true).
+        B2DPolyPolygon clipPolyPolygonOnEdge(const B2DPolyPolygon& rCandidate, const B2DPoint& rPointA, const B2DPoint& rPointB, bool bAbove, bool bStroke);
+
+        // version for Polygons
+        B2DPolyPolygon clipPolygonOnEdge(const B2DPolygon& rCandidate, const B2DPoint& rPointA, const B2DPoint& rPointB, bool bAbove, bool bStroke);
+
+        // Clip given PolyPolygon against given clipping polygon.
+        // The switch bStroke decides if the polygon is interpreted as area (false) or strokes (true).
+        // With stroke polygons, You get all ine snippets inside rCip. For convenience, You may use bInvert to get everything outside rClip.
+        // With filled polygons, You get all PolyPolygon parts which were inside rClip. Those polygons are in no way reduced, so
+        // it may be necessary to clean them up using their overlapping information.
+        B2DPolyPolygon clipPolyPolygonOnPolyPolygon(const B2DPolyPolygon& rCandidate, const B2DPolyPolygon& rClip, bool bStroke, bool bInvert = false);
+
+        // version for Polygons
+        B2DPolyPolygon clipPolygonOnPolyPolygon(const B2DPolygon& rCandidate, const B2DPolyPolygon& rClip, bool bStroke, bool bInvert = false);
+
+        // clip the given polygon against the given range. the resulting polygon will always contain
+        // the inside parts which will always be interpreted as areas. the incoming polygon is expected
+        // to be a simple triangle list. the result is also a simple triangle list.
+        B2DPolygon clipTriangleListOnRange( const B2DPolygon& rCandidate, const B2DRange& rRange );
+
+    } // end of namespace tools
+} // end of namespace basegfx
+
+#endif /* _BGFX_POLYPOLYGON_B2DPOLYGONCLIPPER_HXX */