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 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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#ifndef INCLUDED_SVGIO_SVGREADER_SVGPATTERNNODE_HXX
#define INCLUDED_SVGIO_SVGREADER_SVGPATTERNNODE_HXX

#include <svgio/svgiodllapi.h>
#include <svgio/svgreader/svgnode.hxx>
#include <svgio/svgreader/svgstyleattributes.hxx>

//////////////////////////////////////////////////////////////////////////////

namespace svgio
{
    namespace svgreader
    {
        class SvgPatternNode : public SvgNode
        {
        private:
            /// buffered decomposition
            drawinglayer::primitive2d::Primitive2DSequence aPrimitives;

            /// use styles
            SvgStyleAttributes      maSvgStyleAttributes;

            /// variable scan values, dependent of given XAttributeList
            basegfx::B2DRange*      mpViewBox;
            SvgAspectRatio          maSvgAspectRatio;
            SvgNumber               maX;
            SvgNumber               maY;
            SvgNumber               maWidth;
            SvgNumber               maHeight;
            SvgUnits*               mpPatternUnits;
            SvgUnits*               mpPatternContentUnits;
            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)
            rtl::OUString           maXLink;
            const SvgPatternNode*   mpXLink;

            /// link on demand
            void tryToFindLink();

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

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

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

            /// get pattern primitives buffered, uses decomposeSvgNode internally
            const drawinglayer::primitive2d::Primitive2DSequence& getPatternPrimitives() const;

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

            /// viewBox content
            const basegfx::B2DRange* getViewBox() const;
            void setViewBox(const basegfx::B2DRange* pViewBox = 0) { if(mpViewBox) delete mpViewBox; mpViewBox = 0; if(pViewBox) mpViewBox = new basegfx::B2DRange(*pViewBox); }

            /// SvgAspectRatio content
            const SvgAspectRatio& getSvgAspectRatio() const;
            void setSvgAspectRatio(const SvgAspectRatio& rSvgAspectRatio = SvgAspectRatio()) { maSvgAspectRatio = rSvgAspectRatio; }

            /// X content, set if found in current context
            const SvgNumber& getX() const;
            void setX(const SvgNumber& rX = SvgNumber()) { maX = rX; }

            /// Y content, set if found in current context
            const SvgNumber& getY() const;
            void setY(const SvgNumber& rY = SvgNumber()) { maY = rY; }

            /// Width content, set if found in current context
            const SvgNumber& getWidth() const;
            void setWidth(const SvgNumber& rWidth = SvgNumber()) { maWidth = rWidth; }

            /// Height content, set if found in current context
            const SvgNumber& getHeight() const;
            void setHeight(const SvgNumber& rHeight = SvgNumber()) { maHeight = rHeight; }

            /// PatternUnits content
            const SvgUnits* getPatternUnits() const;
            void setPatternUnits(const SvgUnits aPatternUnits) { if(mpPatternUnits) delete mpPatternUnits; mpPatternUnits = 0; mpPatternUnits = new SvgUnits(aPatternUnits); }

            /// PatternContentUnits content
            const SvgUnits* getPatternContentUnits() const;
            void setPatternContentUnits(const SvgUnits aPatternContentUnits) { if(mpPatternContentUnits) delete mpPatternContentUnits; mpPatternContentUnits = 0; mpPatternContentUnits = new SvgUnits(aPatternContentUnits); }

            /// PatternTransform content
            const basegfx::B2DHomMatrix* getPatternTransform() const;
            void setPatternTransform(const basegfx::B2DHomMatrix* pMatrix = 0) { if(mpaPatternTransform) delete mpaPatternTransform; mpaPatternTransform = 0; if(pMatrix) mpaPatternTransform = new basegfx::B2DHomMatrix(*pMatrix); }

        };
    } // end of namespace svgreader
} // end of namespace svgio

//////////////////////////////////////////////////////////////////////////////

#endif //INCLUDED_SVGIO_SVGREADER_SVGPATTERNNODE_HXX

// eof