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+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: fillgradientprimitive2d.hxx,v $
+ *
+ *  $Revision: 1.3 $
+ *
+ *  last change: $Author: aw $ $Date: 2008-05-27 14:11:17 $
+ *
+ *  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 INCLUDED_DRAWINGLAYER_PRIMITIVE2D_FILLGRADIENTPRIMITIVE2D_HXX
+#define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_FILLGRADIENTPRIMITIVE2D_HXX
+
+#include <drawinglayer/primitive2d/baseprimitive2d.hxx>
+#include <drawinglayer/attribute/fillattribute.hxx>
+
+//////////////////////////////////////////////////////////////////////////////
+// predefines
+
+namespace basegfx { class B2DPolygon; }
+
+//////////////////////////////////////////////////////////////////////////////
+// FillGradientPrimitive2D class
+
+namespace drawinglayer
+{
+    namespace primitive2d
+    {
+        /** FillGradientPrimitive2D class
+
+            This class defines a gradient filling for a rectangular area. The
+            Range is defined by the Transformation, the gradient by the FillGradientAttribute.
+
+            The decomposition will deliver the decomposed gradient, e.g. for an ellipse
+            gradient the various ellipses in various color steps will be created.
+
+            I have added functionality to create both versions of filled decompositions:
+            Those who overlap and non-overlapping ones. The overlapping version is the
+            default one since it works with and without AntiAliasing. The non-overlapping
+            version is used in the MetafilePrimitive2D decomposition when the old XOR
+            paint was recorded.
+         */
+        class FillGradientPrimitive2D : public BufferedDecompositionPrimitive2D
+        {
+        private:
+            /// the geometric definition
+            basegfx::B2DRange                       maObjectRange;
+
+            /// the gradient definition
+            attribute::FillGradientAttribute        maFillGradient;
+
+            /// local helpers
+            void generateMatricesAndColors(
+                std::vector< basegfx::B2DHomMatrix >& rMatrices,
+                std::vector< basegfx::BColor >& rColors) const;
+            Primitive2DSequence createOverlappingFill(
+                const std::vector< basegfx::B2DHomMatrix >& rMatrices,
+                const std::vector< basegfx::BColor >& rColors,
+                const basegfx::B2DPolygon& rUnitPolygon) const;
+            Primitive2DSequence createNonOverlappingFill(
+                const std::vector< basegfx::B2DHomMatrix >& rMatrices,
+                const std::vector< basegfx::BColor >& rColors,
+                const basegfx::B2DPolygon& rUnitPolygon) const;
+
+        protected:
+            /// local helper
+            Primitive2DSequence createFill(bool bOverlapping) const;
+
+            /// local decomposition.
+            virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
+
+        public:
+            /// constructor
+            FillGradientPrimitive2D(
+                const basegfx::B2DRange& rObjectRange,
+                const attribute::FillGradientAttribute& rFillGradient);
+
+            /// data read access
+            const basegfx::B2DRange& getObjectRange() const { return maObjectRange; }
+            const attribute::FillGradientAttribute& getFillGradient() const { return maFillGradient; }
+
+            /// compare operator
+            virtual bool operator==(const BasePrimitive2D& rPrimitive) const;
+
+            /// get range
+            virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const;
+
+            /// provide unique ID
+            DeclPrimitrive2DIDBlock()
+        };
+    } // end of namespace primitive2d
+} // end of namespace drawinglayer
+
+//////////////////////////////////////////////////////////////////////////////
+
+#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_FILLGRADIENTPRIMITIVE2D_HXX
+
+//////////////////////////////////////////////////////////////////////////////
+// eof