1 files changed, 104 insertions, 0 deletions
diff --git a/include/drawinglayer/primitive2d/patternfillprimitive2d.hxx b/include/drawinglayer/primitive2d/patternfillprimitive2d.hxx
new file mode 100644
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+++ b/include/drawinglayer/primitive2d/patternfillprimitive2d.hxx
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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 <drawinglayer/drawinglayerdllapi.h>
+#include <drawinglayer/primitive2d/BufferedDecompositionPrimitive2D.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <vcl/bitmapex.hxx>
+
+
+namespace drawinglayer::primitive2d
+{
+        /** PatternFillPrimitive2D class
+
+            This primitive allows filling a given tools::PolyPolygon with a pattern
+            defined by a sequence of primitives which are mapped to  the unit range.
+            The pattern is defined using a reference range which defines a rectangular
+            area relative to the tools::PolyPolygon (in unit coordinates) which is virtually
+            infinitely repeated.
+         */
+        class DRAWINGLAYER_DLLPUBLIC PatternFillPrimitive2D final : public BufferedDecompositionPrimitive2D
+        {
+        private:
+            const basegfx::B2DPolyPolygon       maMask;
+            const Primitive2DContainer          maChildren;
+            const basegfx::B2DRange             maReferenceRange;
+
+            /// values holding the discrete buffer size
+            sal_uInt32                          mnDiscreteWidth;
+            sal_uInt32                          mnDiscreteHeight;
+
+            /// helper that is capable to calculate the needed discrete buffer size for
+            /// eventually buffered content
+            void calculateNeededDiscreteBufferSize(
+                sal_uInt32& rWidth,
+                sal_uInt32& rHeight,
+                const geometry::ViewInformation2D& rViewInformation) const;
+
+            /// helper which creates the content - checks if clipping is needed and eventually
+            /// creates buffered content to speed up rendering
+            Primitive2DContainer createContent(const geometry::ViewInformation2D& rViewInformation) const;
+
+            /// create local decomposition
+            virtual void create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const override;
+
+        public:
+            /// constructor
+            PatternFillPrimitive2D(
+                const basegfx::B2DPolyPolygon& rMask,
+                Primitive2DContainer&& rChildren,
+                const basegfx::B2DRange& rReferenceRange);
+
+            /// data read access
+            const basegfx::B2DPolyPolygon& getMask() const { return maMask; }
+            const Primitive2DContainer& getChildren() const { return maChildren; }
+            const basegfx::B2DRange& getReferenceRange() const { return maReferenceRange; }
+
+            /// compare operator
+            virtual bool operator==(const BasePrimitive2D& rPrimitive) const override;
+
+            /// get range
+            virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
+
+            /// overload to react on evtl. buffered content
+            virtual void get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const override;
+
+            /// provide unique ID
+            virtual sal_uInt32 getPrimitive2DID() const override;
+
+            // XAccounting
+            virtual sal_Int64 estimateUsage() override;
+
+            /// helper which creates the content - checks if clipping is needed and eventually
+            /// creates buffered content to speed up rendering
+            BitmapEx createTileImage(sal_uInt32 nWidth, sal_uInt32 nHeight) const;
+
+            /// helper that is capable to calculate the needed discrete buffer size for
+            /// eventually buffered content
+            void getTileSize(
+                sal_uInt32& rWidth,
+                sal_uInt32& rHeight,
+                const geometry::ViewInformation2D& rViewInformation) const;
+        };
+} // end of namespace drawinglayer::primitive2d
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */