tdf#98113: SVGIO: Add SvgANode class to handle transport ...

... attribute in anchor elements.

I used Svggnode class a a reference for this.

Change-Id: Id2a58bd913f9984dc91163ca0f333c016aa981f1
Reviewed-on: https://gerrit.libreoffice.org/22822Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Xisco Faulí <anistenis@gmail.com>

svgio/Library_svgio.mk

@@ -51,6 +51,7 @@ $(eval $(call gb_Library_add_exception_objects,svgio,\
     svgio/source/svgreader/svgdocumenthandler \
     svgio/source/svgreader/svgellipsenode \
     svgio/source/svgreader/svggnode \
+    svgio/source/svgreader/svganode \
     svgio/source/svgreader/svggradientnode \
     svgio/source/svgreader/svggradientstopnode \
     svgio/source/svgreader/svgimagenode \

svgio/inc/svgio/svgreader/svganode.hxx

+/* -*- 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_SVGIO_INC_SVGIO_SVGREADER_SVGANODE_HXX
+#define INCLUDED_SVGIO_INC_SVGIO_SVGREADER_SVGANODE_HXX
+
+#include <svgio/svgreader/svgnode.hxx>
+#include <svgio/svgreader/svgstyleattributes.hxx>
+
+namespace svgio
+{
+    namespace svgreader
+    {
+        class SvgANode : public SvgNode
+        {
+        private:
+            /// use styles
+            SvgStyleAttributes          maSvgStyleAttributes;
+
+            /// variable scan values, dependent of given XAttributeList
+            basegfx::B2DHomMatrix*      mpaTransform;
+
+        public:
+            SvgANode(
+                SvgDocument& rDocument,
+                SvgNode* pParent);
+            virtual ~SvgANode();
+
+            virtual const SvgStyleAttributes* getSvgStyleAttributes() const override;
+            virtual void parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent) override;
+            virtual void decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool bReferenced) const override;
+
+            /// transform content
+            const basegfx::B2DHomMatrix* getTransform() const { return mpaTransform; }
+            void setTransform(const basegfx::B2DHomMatrix* pMatrix = nullptr) { if(mpaTransform) delete mpaTransform; mpaTransform = nullptr; if(pMatrix) mpaTransform = new basegfx::B2DHomMatrix(*pMatrix); }
+        };
+    } // end of namespace svgreader
+} // end of namespace svgio
+
+#endif // INCLUDED_SVGIO_INC_SVGIO_SVGREADER_SVGANODE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

svgio/inc/svgio/svgreader/svgtoken.hxx

@@ -127,6 +127,7 @@ namespace svgio
             SVGTokenSvg,
             SVGTokenSymbol,
             SVGTokenUse,
+            SVGTokenA,
 
             // shape elements
             SVGTokenCircle,

svgio/source/svgreader/svganode.cxx

+/* -*- 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 .
+ */
+
+#include <svgio/svgreader/svganode.hxx>
+#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
+#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
+
+namespace svgio
+{
+    namespace svgreader
+    {
+        SvgANode::SvgANode(
+            SvgDocument& rDocument,
+            SvgNode* pParent)
+        :   SvgNode(SVGTokenA, rDocument, pParent),
+            maSvgStyleAttributes(*this),
+            mpaTransform(nullptr)
+        {
+        }
+
+        SvgANode::~SvgANode()
+        {
+            delete mpaTransform;
+        }
+
+        const SvgStyleAttributes* SvgANode::getSvgStyleAttributes() const
+        {
+            return checkForCssStyle("a", maSvgStyleAttributes);
+        }
+
+        void SvgANode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
+        {
+            // call parent
+            SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
+
+            // read style attributes
+            maSvgStyleAttributes.parseStyleAttribute(rTokenName, aSVGToken, aContent, false);
+
+            // parse own
+            switch(aSVGToken)
+            {
+                case SVGTokenStyle:
+                {
+                    readLocalCssStyle(aContent);
+                    break;
+                }
+                case SVGTokenTransform:
+                {
+                    const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
+
+                    if(!aMatrix.isIdentity())
+                    {
+                        setTransform(&aMatrix);
+                    }
+                    break;
+                }
+                case SVGTokenXlinkHref:
+                    //TODO: add support for xlink:href
+                    break;
+                default:
+                {
+                    break;
+                }
+            }
+        }
+
+        void SvgANode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool bReferenced) const
+        {
+            // #i125258# for SVGTokenA decompose children
+            const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
+
+            if(pStyle)
+            {
+                const double fOpacity(pStyle->getOpacity().getNumber());
+
+                if(fOpacity > 0.0 && Display_none != getDisplay())
+                {
+                    drawinglayer::primitive2d::Primitive2DContainer aContent;
+
+                    // decompose children
+                    SvgNode::decomposeSvgNode(aContent, bReferenced);
+
+                    if(!aContent.empty())
+                    {
+                        pStyle->add_postProcess(rTarget, aContent, getTransform());
+                    }
+                }
+            }
+        }
+    } // end of namespace svgreader
+} // end of namespace svgio
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

svgio/source/svgreader/svgdocumenthandler.cxx

@@ -21,6 +21,7 @@
 #include <svgio/svgreader/svgtoken.hxx>
 #include <svgio/svgreader/svgsvgnode.hxx>
 #include <svgio/svgreader/svggnode.hxx>
+#include <svgio/svgreader/svganode.hxx>
 #include <svgio/svgreader/svgnode.hxx>
 #include <svgio/svgreader/svgpathnode.hxx>
 #include <svgio/svgreader/svgrectnode.hxx>
@@ -206,6 +207,13 @@ namespace svgio
                         mpTarget->parseAttributes(xAttribs);
                         break;
                     }
+                    case SVGTokenA:
+                    {
+                        /// new node for A
+                        mpTarget = new SvgANode(maDocument, mpTarget);
+                        mpTarget->parseAttributes(xAttribs);
+                        break;
+                    }
 
                     /// shape elements
                     case SVGTokenCircle:
@@ -427,6 +435,7 @@ namespace svgio
                     case SVGTokenSvg:
                     case SVGTokenSymbol:
                     case SVGTokenUse:
+                    case SVGTokenA:
 
                     /// shape elements
                     case SVGTokenCircle:

svgio/source/svgreader/svgtoken.cxx

@@ -116,6 +116,7 @@ namespace svgio
         static const char aSVGStrSvg[] = "svg";
         static const char aSVGStrSymbol[] = "symbol";
         static const char aSVGStrUse[] = "use";
+        static const char aSVGStrA[] = "a";
 
         static const char aSVGStrCircle[] = "circle";
         static const char aSVGStrEllipse[] = "ellipse";
@@ -264,6 +265,7 @@ namespace svgio
                 aSVGTokenMapperList.insert(SVGTokenValueType(aSVGStrSvg, SVGTokenSvg));
                 aSVGTokenMapperList.insert(SVGTokenValueType(aSVGStrSymbol, SVGTokenSymbol));
                 aSVGTokenMapperList.insert(SVGTokenValueType(aSVGStrUse, SVGTokenUse));
+                aSVGTokenMapperList.insert(SVGTokenValueType(aSVGStrA, SVGTokenA));
 
                 aSVGTokenMapperList.insert(SVGTokenValueType(aSVGStrCircle, SVGTokenCircle));
                 aSVGTokenMapperList.insert(SVGTokenValueType(aSVGStrEllipse, SVGTokenEllipse));