Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 243 insertions, 0 deletions

diff --git a/svgio/source/svgreader/svgtextnode.cxx b/svgio/source/svgreader/svgtextnode.cxx
new file mode 100644
index 0000000000..ca17c2fc42
--- /dev/null
+++ b/svgio/source/svgreader/svgtextnode.cxx
@@ -0,0 +1,243 @@
+/* -*- 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 <svgtextnode.hxx>
+#include <svgcharacternode.hxx>
+#include <svgstyleattributes.hxx>
+#include <svgtrefnode.hxx>
+#include <svgtextpathnode.hxx>
+#include <svgtspannode.hxx>
+#include <osl/diagnose.h>
+
+namespace svgio::svgreader
+{
+        SvgTextNode::SvgTextNode(
+            SvgDocument& rDocument,
+            SvgNode* pParent)
+        :   SvgTspanNode(SVGToken::Text, rDocument, pParent)
+        {
+        }
+
+        SvgTextNode::~SvgTextNode()
+        {
+        }
+
+        void SvgTextNode::parseAttribute(SVGToken aSVGToken, const OUString& aContent)
+        {
+            // call parent
+            SvgTspanNode::parseAttribute(aSVGToken, aContent);
+
+            // parse own
+            switch(aSVGToken)
+            {
+                case SVGToken::Transform:
+                {
+                    const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
+
+                    if(!aMatrix.isIdentity())
+                    {
+                        setTransform(aMatrix);
+                    }
+                    break;
+                }
+                default:
+                {
+                    break;
+                }
+            }
+        }
+
+        void SvgTextNode::addTextPrimitives(
+            const SvgNode& rCandidate,
+            drawinglayer::primitive2d::Primitive2DContainer& rTarget,
+            drawinglayer::primitive2d::Primitive2DContainer&& rSource)
+        {
+            if(rSource.empty())
+                return;
+
+            const SvgStyleAttributes* pAttributes = rCandidate.getSvgStyleAttributes();
+
+            if(pAttributes)
+            {
+                // add text with taking all Fill/Stroke attributes into account
+                pAttributes->add_text(rTarget, std::move(rSource));
+            }
+            else
+            {
+                // should not happen, every subnode from SvgTextNode will at least
+                // return the attributes from SvgTextNode. Nonetheless, add text
+                rTarget.append(std::move(rSource));
+            }
+        }
+
+        void SvgTextNode::DecomposeChild(const SvgNode& rCandidate, drawinglayer::primitive2d::Primitive2DContainer& rTarget, SvgTextPosition& rSvgTextPosition) const
+        {
+            switch(rCandidate.getType())
+            {
+                case SVGToken::Character:
+                {
+                    // direct SvgTextPathNode derivates, decompose them
+                    const SvgCharacterNode& rSvgCharacterNode = static_cast< const SvgCharacterNode& >(rCandidate);
+                    rSvgCharacterNode.decomposeText(rTarget, rSvgTextPosition);
+                    break;
+                }
+                case SVGToken::TextPath:
+                {
+                    // direct TextPath decompose
+                    const SvgTextPathNode& rSvgTextPathNode = static_cast< const SvgTextPathNode& >(rCandidate);
+                    const auto& rChildren = rSvgTextPathNode.getChildren();
+                    const sal_uInt32 nCount(rChildren.size());
+
+                    if(nCount && rSvgTextPathNode.isValid())
+                    {
+                        // remember original TextStart to later detect hor/ver offsets
+                        const basegfx::B2DPoint aTextStart(rSvgTextPosition.getPosition());
+                        drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
+
+                        // decompose to regular TextPrimitives
+                        for(sal_uInt32 a(0); a < nCount; a++)
+                        {
+                            DecomposeChild(*rChildren[a], aNewTarget, rSvgTextPosition);
+                        }
+
+                        if(!aNewTarget.empty())
+                        {
+                            const drawinglayer::primitive2d::Primitive2DContainer aPathContent(aNewTarget);
+                            aNewTarget.clear();
+
+                            // dismantle TextPrimitives and map them on curve/path
+                            rSvgTextPathNode.decomposePathNode(aPathContent, aNewTarget, aTextStart);
+                        }
+
+                        if(!aNewTarget.empty())
+                        {
+                            addTextPrimitives(rCandidate, rTarget, std::move(aNewTarget));
+                        }
+                    }
+
+                    break;
+                }
+                case SVGToken::Tspan:
+                {
+                    // Tspan may have children, call recursively
+                    const SvgTspanNode& rSvgTspanNode = static_cast< const SvgTspanNode& >(rCandidate);
+                    const auto& rChildren = rSvgTspanNode.getChildren();
+                    const sal_uInt32 nCount(rChildren.size());
+
+                    if(nCount)
+                    {
+                        SvgTextPosition aSvgTextPosition(&rSvgTextPosition, rSvgTspanNode);
+                        drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
+
+                        for(sal_uInt32 a(0); a < nCount; a++)
+                        {
+                            DecomposeChild(*rChildren[a], aNewTarget, aSvgTextPosition);
+                        }
+
+                        rSvgTextPosition.setPosition(aSvgTextPosition.getPosition());
+
+                        if(!aNewTarget.empty())
+                        {
+                            addTextPrimitives(rCandidate, rTarget, std::move(aNewTarget));
+                        }
+                    }
+                    break;
+                }
+                case SVGToken::Tref:
+                {
+                    const SvgTrefNode& rSvgTrefNode = static_cast< const SvgTrefNode& >(rCandidate);
+                    const SvgTextNode* pRefText = rSvgTrefNode.getReferencedSvgTextNode();
+
+                    if(pRefText)
+                    {
+                        const auto& rChildren = pRefText->getChildren();
+                        const sal_uInt32 nCount(rChildren.size());
+                        drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
+
+                        if(nCount)
+                        {
+                            for(sal_uInt32 a(0); a < nCount; a++)
+                            {
+                                const SvgNode& rChildCandidate = *rChildren[a];
+                                const_cast< SvgNode& >(rChildCandidate).setAlternativeParent(this);
+
+                                DecomposeChild(rChildCandidate, aNewTarget, rSvgTextPosition);
+                                const_cast< SvgNode& >(rChildCandidate).setAlternativeParent();
+                            }
+
+                            if(!aNewTarget.empty())
+                            {
+                                addTextPrimitives(rCandidate, rTarget, std::move(aNewTarget));
+                            }
+                        }
+                    }
+
+                    break;
+                }
+                default:
+                {
+                    OSL_ENSURE(false, "Unexpected node in text token (!)");
+                    break;
+                }
+            }
+        }
+
+        void SvgTextNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DContainer& rTarget, bool /*bReferenced`*/) const
+        {
+            // text has a group of child nodes, allowed are SVGToken::Character, SVGToken::Tspan,
+            // SVGToken::Tref and SVGToken::TextPath. These increase a given current text position
+            const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
+
+            if(!pStyle || getChildren().empty())
+                return;
+
+            const double fOpacity(pStyle->getOpacity().getNumber());
+
+            if(fOpacity <= 0.0)
+                return;
+
+            SvgTextPosition aSvgTextPosition(nullptr, *this);
+            drawinglayer::primitive2d::Primitive2DContainer aNewTarget;
+            const auto& rChildren = getChildren();
+            const sal_uInt32 nCount(rChildren.size());
+
+            for(sal_uInt32 a(0); a < nCount; a++)
+            {
+                const SvgNode& rCandidate = *rChildren[a];
+
+                DecomposeChild(rCandidate, aNewTarget, aSvgTextPosition);
+            }
+
+            if(!aNewTarget.empty())
+            {
+                drawinglayer::primitive2d::Primitive2DContainer aNewTarget2;
+
+                addTextPrimitives(*this, aNewTarget2, std::move(aNewTarget));
+                aNewTarget = aNewTarget2;
+            }
+
+            if(!aNewTarget.empty())
+            {
+                pStyle->add_postProcess(rTarget, std::move(aNewTarget), getTransform());
+            }
+        }
+
+} // end of namespace svgio::svgreader
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */