/* -*- 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 "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

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