Quelle svgpatternnode.hxx Sprache: C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
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* 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 "svgnode.hxx"
#include "svgstyleattributes.hxx"
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <memory>

namespace svgio::svgreader
    {
        class SvgPatternNode final : public SvgNode
        {
        private:
            /// buffered decomposition
            drawinglayer::primitive2d::Primitive2DContainer aPrimitives;

            /// use styles
            SvgStyleAttributes      maSvgStyleAttributes;

            /// variable scan values, dependent of given XAttributeList
            std::unique_ptr<basegfx::B2DRange>
                                    mpViewBox;
            SvgAspectRatio          maSvgAspectRatio;
            SvgNumber               maX;
            SvgNumber               maY;
            SvgNumber               maWidth;
            SvgNumber               maHeight;
            std::optional<SvgUnits>
                                    moPatternUnits;
            std::optional<SvgUnits>
                                    moPatternContentUnits;
            std::optional<basegfx::B2DHomMatrix>
                                    mpaPatternTransform;

            /// link to another pattern used as style. If maXLink
            /// is set, the node can be fetched on demand by using
            // tryToFindLink (buffered)
            mutable bool mbResolvingLink; // protect against infinite link recursion
            OUString           maXLink;
            const SvgPatternNode*   mpXLink;

            /// link on demand
            void tryToFindLink();

        public:
            SvgPatternNode(
                SvgDocument& rDocument,
                SvgNode* pParent);
            virtual ~SvgPatternNode() override;

            virtual const SvgStyleAttributes* getSvgStyleAttributes() const override;
            virtual void parseAttribute(SVGToken aSVGToken, const OUString& aContent) override;

            /// global helpers
            void getValuesRelative(double& rfX, double& rfY, double& rfW, double& rfH, const basegfx::B2DRange& rGeoRange, SvgNode const & rUser) const;

            /// get pattern primitives buffered, uses decomposeSvgNode internally
            const drawinglayer::primitive2d::Primitive2DContainer& getPatternPrimitives() const;

            /// InfoProvider support for % values
            virtual basegfx::B2DRange getCurrentViewPort() const override;

            /// viewBox content
            const basegfx::B2DRange* getViewBox() const;
            void setViewBox(const basegfx::B2DRange* pViewBox) { mpViewBox.reset(); if(pViewBox) mpViewBox.reset(new basegfx::B2DRange(*pViewBox)); }

            /// SvgAspectRatio content
            const SvgAspectRatio& getSvgAspectRatio() const;

            /// X content, set if found in current context
            const SvgNumber& getX() const;

            /// Y content, set if found in current context
            const SvgNumber& getY() const;

            /// Width content, set if found in current context
            const SvgNumber& getWidth() const;

            /// Height content, set if found in current context
            const SvgNumber& getHeight() const;

            /// PatternUnits content
            const SvgUnits* getPatternUnits() const;
            void setPatternUnits(const SvgUnits aPatternUnits) { moPatternUnits = aPatternUnits; }

            /// PatternContentUnits content
            const SvgUnits* getPatternContentUnits() const;
            void setPatternContentUnits(const SvgUnits aPatternContentUnits) { moPatternContentUnits = aPatternContentUnits; }

            /// PatternTransform content
            std::optional<basegfx::B2DHomMatrix> getPatternTransform() const;
            void setPatternTransform(const std::optional<basegfx::B2DHomMatrix>& pMatrix) { mpaPatternTransform = pMatrix; }

        };

} // end of namespace svgio::svgreader

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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