Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

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

1 files changed, 198 insertions, 0 deletions

diff --git a/svgio/source/svguno/xsvgparser.cxx b/svgio/source/svguno/xsvgparser.cxx
new file mode 100644
index 000000000..32db2bc77
--- /dev/null
+++ b/svgio/source/svguno/xsvgparser.cxx
@@ -0,0 +1,198 @@
+/* -*- 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 <sal/config.h>
+
+#include <com/sun/star/graphic/XSvgParser.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <cppuhelper/implbase2.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <com/sun/star/xml/sax/XParser.hpp>
+#include <com/sun/star/xml/sax/Parser.hpp>
+#include <com/sun/star/xml/sax/InputSource.hpp>
+#include <svgdocumenthandler.hxx>
+#include <tools/diagnose_ex.h>
+#include <rtl/ref.hxx>
+
+#include <svgvisitor.hxx>
+
+using namespace ::com::sun::star;
+
+namespace svgio::svgreader
+{
+        namespace {
+
+        class XSvgParser : public ::cppu::WeakAggImplHelper2< graphic::XSvgParser, lang::XServiceInfo >
+        {
+        private:
+            std::shared_ptr<SvgDrawVisitor> mpVisitor;
+
+            uno::Reference< uno::XComponentContext > context_;
+            bool parseSvgXML(uno::Reference<io::XInputStream> const & xSVGStream,
+                             uno::Reference<xml::sax::XDocumentHandler> const & xSvgDocHdl);
+        public:
+            explicit XSvgParser(
+                uno::Reference< uno::XComponentContext > const & context);
+            XSvgParser(const XSvgParser&) = delete;
+            XSvgParser& operator=(const XSvgParser&) = delete;
+
+            // XSvgParser
+            virtual uno::Sequence< uno::Reference< ::graphic::XPrimitive2D > > SAL_CALL getDecomposition(
+                const uno::Reference< ::io::XInputStream >& xSVGStream,
+                const OUString& aAbsolutePath) override;
+
+            virtual uno::Any SAL_CALL getDrawCommands(
+                uno::Reference<io::XInputStream> const & xSvgStream,
+                const OUString& aAbsolutePath) override;
+
+            // XServiceInfo
+            virtual OUString SAL_CALL getImplementationName() override;
+            virtual sal_Bool SAL_CALL supportsService(const OUString&) override;
+            virtual uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+        };
+
+        }
+
+        XSvgParser::XSvgParser(
+            uno::Reference< uno::XComponentContext > const & context):
+            context_(context)
+        {
+        }
+
+        bool XSvgParser::parseSvgXML(uno::Reference<io::XInputStream> const & xSVGStream, uno::Reference<xml::sax::XDocumentHandler> const & xSvgDocHdl)
+        {
+            try
+            {
+                // prepare ParserInputSource
+                xml::sax::InputSource myInputSource;
+                myInputSource.aInputStream = xSVGStream;
+
+                // get parser
+                uno::Reference< xml::sax::XParser > xParser(
+                    xml::sax::Parser::create(context_));
+                // fdo#60471 need to enable internal entities because
+                // certain ... popular proprietary products write SVG files
+                // that use entities to define XML namespaces.
+                uno::Reference<lang::XInitialization> const xInit(xParser,
+                        uno::UNO_QUERY_THROW);
+                uno::Sequence<uno::Any> args{ uno::Any(OUString("DoSmeplease")) };
+                xInit->initialize(args);
+
+                // connect parser and filter
+                xParser->setDocumentHandler(xSvgDocHdl);
+
+                // finally, parse the stream to a hierarchy of
+                // SVGGraphicPrimitive2D which will be embedded to the
+                // primitive sequence. Their decompositions will in the
+                // end create local low-level primitives, thus SVG will
+                // be processable from all our processors
+                xParser->parseStream(myInputSource);
+            }
+            catch(const uno::Exception&)
+            {
+                TOOLS_INFO_EXCEPTION( "svg", "Parse error");
+                return false;
+            }
+
+            return true;
+        }
+
+        uno::Sequence< uno::Reference< ::graphic::XPrimitive2D > > XSvgParser::getDecomposition(
+            const uno::Reference< ::io::XInputStream >& xSVGStream,
+            const OUString& aAbsolutePath )
+        {
+            drawinglayer::primitive2d::Primitive2DContainer aRetval;
+
+            if(xSVGStream.is())
+            {
+                // local document handler
+                rtl::Reference<SvgDocHdl> pSvgDocHdl = new SvgDocHdl(aAbsolutePath);
+                parseSvgXML(xSVGStream, pSvgDocHdl);
+
+                // decompose to primitives
+                for(std::unique_ptr<SvgNode> const & pCandidate : pSvgDocHdl->getSvgDocument().getSvgNodeVector())
+                {
+                    if (Display::None != pCandidate->getDisplay())
+                    {
+                        pCandidate->decomposeSvgNode(aRetval, false);
+                    }
+                }
+            }
+            else
+            {
+                OSL_ENSURE(false, "Invalid stream (!)");
+            }
+
+            return aRetval.toSequence();
+        }
+
+        uno::Any SAL_CALL XSvgParser::getDrawCommands(
+                uno::Reference<io::XInputStream> const & xSvgStream,
+                const OUString& aAbsolutePath)
+        {
+            uno::Any aAnyResult;
+
+            if (!xSvgStream.is())
+                return aAnyResult;
+
+            rtl::Reference<SvgDocHdl> pSvgDocHdl = new SvgDocHdl(aAbsolutePath);
+            parseSvgXML(xSvgStream, pSvgDocHdl);
+
+            // decompose to primitives
+            for (std::unique_ptr<SvgNode> const & pCandidate : pSvgDocHdl->getSvgDocument().getSvgNodeVector())
+            {
+                if (Display::None != pCandidate->getDisplay())
+                {
+                    mpVisitor = std::make_shared<SvgDrawVisitor>();
+                    pCandidate->accept(*mpVisitor);
+                    std::shared_ptr<gfx::DrawRoot> pDrawRoot(mpVisitor->getDrawRoot());
+                    sal_uInt64 nPointer = reinterpret_cast<sal_uInt64>(pDrawRoot.get());
+                    aAnyResult <<= sal_uInt64(nPointer);
+                }
+            }
+
+            return aAnyResult;
+        }
+
+        OUString SAL_CALL XSvgParser::getImplementationName()
+        {
+            return "svgio::svgreader::XSvgParser";
+        }
+
+        sal_Bool SAL_CALL XSvgParser::supportsService(const OUString& rServiceName)
+        {
+            return cppu::supportsService(this, rServiceName);
+        }
+
+        uno::Sequence< OUString > SAL_CALL XSvgParser::getSupportedServiceNames()
+        {
+            return { "com.sun.star.graphic.SvgTools" };
+        }
+
+} // end of namespace svgio::svgreader
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+svgio_XSvgParser_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new svgio::svgreader::XSvgParser(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */