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Diffstat (limited to 'include/drawinglayer/primitive2d/fillgradientprimitive2d.hxx')
-rw-r--r-- | include/drawinglayer/primitive2d/fillgradientprimitive2d.hxx | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/include/drawinglayer/primitive2d/fillgradientprimitive2d.hxx b/include/drawinglayer/primitive2d/fillgradientprimitive2d.hxx new file mode 100644 index 000000000000..0f6c33ae8f95 --- /dev/null +++ b/include/drawinglayer/primitive2d/fillgradientprimitive2d.hxx @@ -0,0 +1,109 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_FILLGRADIENTPRIMITIVE2D_HXX +#define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_FILLGRADIENTPRIMITIVE2D_HXX + +#include <drawinglayer/drawinglayerdllapi.h> + +#include <drawinglayer/primitive2d/baseprimitive2d.hxx> +#include <drawinglayer/attribute/fillgradientattribute.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 DRAWINGLAYER_DLLPUBLIC 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 + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |