Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

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

1 files changed, 1120 insertions, 0 deletions

diff --git a/svx/source/xml/xmlgrhlp.cxx b/svx/source/xml/xmlgrhlp.cxx
new file mode 100644
index 000000000..f9839c38b
--- /dev/null
+++ b/svx/source/xml/xmlgrhlp.cxx
@@ -0,0 +1,1120 @@
+/* -*- 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 <sal/log.hxx>
+
+#include <com/sun/star/embed/XTransactedObject.hpp>
+#include <com/sun/star/embed/ElementModes.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/io/NotConnectedException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <comphelper/fileformat.h>
+#include <comphelper/graphicmimetype.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <rtl/ref.hxx>
+#include <unotools/ucbstreamhelper.hxx>
+#include <unotools/streamwrap.hxx>
+#include <unotools/tempfile.hxx>
+#include <unotools/saveopt.hxx>
+#include <vcl/gfxlink.hxx>
+#include <vcl/metaact.hxx>
+#include <tools/zcodec.hxx>
+
+#include <vcl/GraphicObject.hxx>
+#include <vcl/graphicfilter.hxx>
+#include <svx/xmlgrhlp.hxx>
+#include <svx/xmleohlp.hxx>
+
+#include <algorithm>
+#include <memory>
+#include <utility>
+
+using namespace com::sun::star;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::io;
+
+namespace com::sun::star::uno { class XComponentContext; }
+
+#define XML_GRAPHICSTORAGE_NAME     "Pictures"
+#define XML_GRAPHICOBJECT_URL_BASE  "vnd.sun.star.GraphicObject:"
+
+namespace {
+
+const MetaCommentAction* ImplCheckForEPS( GDIMetaFile const & rMtf )
+{
+    const MetaCommentAction* pComment = nullptr;
+
+    if ( rMtf.GetActionSize() >= 2
+            && rMtf.GetAction(0)->GetType() == MetaActionType::EPS
+            && rMtf.GetAction(1)->GetType() == MetaActionType::COMMENT
+            && ( static_cast<const MetaCommentAction*>(rMtf.GetAction( 1 ))->GetComment() == "EPSReplacementGraphic" ) )
+        pComment = static_cast<const MetaCommentAction*>(rMtf.GetAction( 1 ));
+
+    return pComment;
+}
+
+class GraphicInputStream : public cppu::WeakImplHelper<XInputStream>
+{
+private:
+    virtual sal_Int32 SAL_CALL readBytes(Sequence<sal_Int8> & aData, sal_Int32 nBytesToRead) override;
+    virtual sal_Int32 SAL_CALL readSomeBytes(Sequence<sal_Int8> & aData, sal_Int32 nMaxBytesToRead) override;
+    virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) override;
+    virtual sal_Int32 SAL_CALL available() override;
+    virtual void SAL_CALL closeInput() override;
+
+private:
+    utl::TempFile maTempFile;
+    Reference<XInputStream> mxStreamWrapper;
+
+public:
+
+    explicit GraphicInputStream(GraphicObject const & raGraphicObject, const OUString & rMimeType);
+    GraphicInputStream(const GraphicInputStream&) = delete;
+
+    GraphicInputStream& operator=(const GraphicInputStream&) = delete;
+
+    bool exists() const
+    {
+        return mxStreamWrapper.is();
+    }
+};
+
+
+GraphicInputStream::GraphicInputStream(GraphicObject const & aGraphicObject, const OUString & rMimeType)
+{
+    maTempFile.EnableKillingFile();
+
+    if (aGraphicObject.GetType() != GraphicType::NONE)
+    {
+        std::unique_ptr<SvStream> pStream = ::utl::UcbStreamHelper::CreateStream(maTempFile.GetURL(), StreamMode::WRITE | StreamMode::TRUNC);
+
+        if (pStream)
+        {
+            const Graphic& aGraphic(aGraphicObject.GetGraphic());
+            const GfxLink aGfxLink(aGraphic.GetGfxLink());
+            bool bRet = false;
+
+            if (aGfxLink.GetDataSize() && aGfxLink.GetData())
+            {
+                if (rMimeType.isEmpty())
+                {
+                    pStream->WriteBytes(aGfxLink.GetData(), aGfxLink.GetDataSize());
+                    bRet = (pStream->GetError() == ERRCODE_NONE);
+                }
+                else
+                {
+                    GraphicFilter &rFilter = GraphicFilter::GetGraphicFilter();
+                    bRet = (rFilter.ExportGraphic(aGraphic, "", *pStream, rFilter.GetExportFormatNumberForMediaType(rMimeType)) == ERRCODE_NONE);
+                }
+            }
+            else
+            {
+                if (aGraphic.GetType() == GraphicType::Bitmap)
+                {
+                    GraphicFilter & rFilter = GraphicFilter::GetGraphicFilter();
+                    OUString aFormat = rMimeType;
+
+                    if (aGraphic.IsAnimated())
+                        aFormat = "image/gif";
+                    else if (aFormat.isEmpty())
+                        aFormat = "image/png";
+
+                    bRet = (rFilter.ExportGraphic(aGraphic, "", *pStream, rFilter.GetExportFormatNumberForMediaType(aFormat)) == ERRCODE_NONE);
+                }
+                else if (rMimeType.isEmpty() && aGraphic.GetType() == GraphicType::GdiMetafile)
+                {
+                    pStream->SetVersion(SOFFICE_FILEFORMAT_8);
+                    pStream->SetCompressMode(SvStreamCompressFlags::ZBITMAP);
+                    const_cast<GDIMetaFile&>(aGraphic.GetGDIMetaFile()).Write(*pStream);
+                    bRet = (pStream->GetError() == ERRCODE_NONE);
+                }
+                else if (!rMimeType.isEmpty())
+                {
+                    GraphicFilter & rFilter = GraphicFilter::GetGraphicFilter();
+                    bRet = ( rFilter.ExportGraphic( aGraphic, "", *pStream, rFilter.GetExportFormatNumberForMediaType( rMimeType ) ) == ERRCODE_NONE );
+                }
+            }
+
+            if (bRet)
+            {
+                pStream->Seek( 0 );
+                mxStreamWrapper = new ::utl::OInputStreamWrapper(std::move(pStream));
+            }
+        }
+    }
+}
+
+sal_Int32 SAL_CALL GraphicInputStream::readBytes(Sequence<sal_Int8> & rData, sal_Int32 nBytesToRead)
+{
+    if (!mxStreamWrapper.is())
+        throw NotConnectedException();
+
+    return mxStreamWrapper->readBytes(rData, nBytesToRead);
+}
+
+sal_Int32 SAL_CALL GraphicInputStream::readSomeBytes(Sequence<sal_Int8>& rData, sal_Int32 nMaxBytesToRead )
+{
+    if (!mxStreamWrapper.is())
+        throw NotConnectedException() ;
+
+    return mxStreamWrapper->readSomeBytes(rData, nMaxBytesToRead);
+}
+
+void SAL_CALL GraphicInputStream::skipBytes(sal_Int32 nBytesToSkip)
+{
+    if (!mxStreamWrapper.is())
+        throw NotConnectedException();
+
+    mxStreamWrapper->skipBytes(nBytesToSkip);
+}
+
+sal_Int32 SAL_CALL GraphicInputStream::available()
+{
+    if (!mxStreamWrapper.is())
+        throw NotConnectedException();
+
+    return mxStreamWrapper->available();
+}
+
+void SAL_CALL GraphicInputStream::closeInput()
+{
+    if (!mxStreamWrapper.is())
+        throw NotConnectedException();
+
+    mxStreamWrapper->closeInput();
+}
+
+class SvXMLGraphicOutputStream:
+    public cppu::WeakImplHelper<XOutputStream>
+{
+private:
+
+    // XOutputStream
+    virtual void SAL_CALL           writeBytes( const Sequence< sal_Int8 >& rData ) override;
+    virtual void SAL_CALL           flush() override;
+    virtual void SAL_CALL           closeOutput() override;
+
+private:
+
+    std::unique_ptr<::utl::TempFile> mpTmp;
+    std::unique_ptr<SvStream>        mpOStm;
+    Reference< XOutputStream >       mxStmWrapper;
+    std::unique_ptr<GraphicObject>   mxGrfObj;
+    bool                             mbClosed;
+
+public:
+
+                                    SvXMLGraphicOutputStream();
+    virtual                         ~SvXMLGraphicOutputStream() override;
+                                    SvXMLGraphicOutputStream(const SvXMLGraphicOutputStream&) = delete;
+    SvXMLGraphicOutputStream&       operator=(const SvXMLGraphicOutputStream&) = delete;
+
+    bool                            Exists() const { return mxStmWrapper.is(); }
+    const GraphicObject&            GetGraphicObject();
+    Graphic GetGraphic();
+};
+
+SvXMLGraphicOutputStream::SvXMLGraphicOutputStream()
+    : mpTmp(new ::utl::TempFile)
+    , mxGrfObj(new GraphicObject)
+    , mbClosed(false)
+{
+    mpTmp->EnableKillingFile();
+
+    mpOStm = ::utl::UcbStreamHelper::CreateStream( mpTmp->GetURL(), StreamMode::WRITE | StreamMode::TRUNC );
+
+    if( mpOStm )
+        mxStmWrapper = new ::utl::OOutputStreamWrapper( *mpOStm );
+}
+
+SvXMLGraphicOutputStream::~SvXMLGraphicOutputStream()
+{
+    mpTmp.reset();
+    mpOStm.reset();
+}
+
+void SAL_CALL SvXMLGraphicOutputStream::writeBytes( const Sequence< sal_Int8 >& rData )
+{
+    if( !mxStmWrapper.is() )
+        throw NotConnectedException() ;
+
+    mxStmWrapper->writeBytes( rData );
+}
+
+void SAL_CALL SvXMLGraphicOutputStream::flush()
+{
+    if( !mxStmWrapper.is() )
+        throw NotConnectedException() ;
+
+    mxStmWrapper->flush();
+}
+
+void SAL_CALL SvXMLGraphicOutputStream::closeOutput()
+{
+    if( !mxStmWrapper.is() )
+        throw NotConnectedException() ;
+
+    mxStmWrapper->closeOutput();
+    mxStmWrapper.clear();
+
+    mbClosed = true;
+}
+
+Graphic SvXMLGraphicOutputStream::GetGraphic()
+{
+    Graphic aGraphic;
+
+    if (mbClosed && mxGrfObj->GetType() == GraphicType::NONE && mpOStm)
+    {
+        mpOStm->Seek( 0 );
+        sal_uInt16 nFormat = GRFILTER_FORMAT_DONTKNOW;
+        sal_uInt16 nDeterminedFormat = GRFILTER_FORMAT_DONTKNOW;
+        GraphicFilter::GetGraphicFilter().ImportGraphic( aGraphic, "", *mpOStm ,nFormat,&nDeterminedFormat);
+
+        if (nDeterminedFormat == GRFILTER_FORMAT_DONTKNOW)
+        {
+            //Read the first two byte to check whether it is a gzipped stream, is so it may be in wmz or emz format
+            //unzip them and try again
+
+            sal_uInt8    sFirstBytes[ 2 ];
+
+            sal_uInt64 nStreamLen = mpOStm->TellEnd();
+            mpOStm->Seek( 0 );
+
+            if ( nStreamLen == 0 )
+            {
+                SvLockBytes* pLockBytes = mpOStm->GetLockBytes();
+                if ( pLockBytes  )
+                    pLockBytes->SetSynchronMode();
+
+                nStreamLen = mpOStm->TellEnd();
+                mpOStm->Seek( 0 );
+            }
+            if( nStreamLen >= 2 )
+            {
+                //read two byte
+                mpOStm->ReadBytes(sFirstBytes, 2);
+
+                if( sFirstBytes[0] == 0x1f && sFirstBytes[1] == 0x8b )
+                {
+                    std::unique_ptr<SvMemoryStream> pDest(new SvMemoryStream);
+                    ZCodec aZCodec( 0x8000, 0x8000 );
+                    aZCodec.BeginCompression(ZCODEC_DEFAULT_COMPRESSION, /*gzLib*/true);
+                    mpOStm->Seek( 0 );
+                    aZCodec.Decompress( *mpOStm, *pDest );
+
+                    if (aZCodec.EndCompression())
+                    {
+                        sal_uInt64 nStreamLen_ = pDest->TellEnd();
+                        if (nStreamLen_ > 0)
+                        {
+                            pDest->Seek(0);
+                            GraphicFilter::GetGraphicFilter().ImportGraphic( aGraphic, "", *pDest ,nFormat,&nDeterminedFormat );
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    if (aGraphic.GetType() != GraphicType::NONE)
+    {
+        mpOStm.reset();
+        mpTmp.reset();
+     }
+    return aGraphic;
+}
+
+const GraphicObject& SvXMLGraphicOutputStream::GetGraphicObject()
+{
+    Graphic aGraphic(GetGraphic());
+    if (aGraphic.GetType() != GraphicType::NONE)
+    {
+        mxGrfObj.reset(new GraphicObject(aGraphic));
+    }
+    return *mxGrfObj;
+}
+
+}
+
+SvXMLGraphicHelper::SvXMLGraphicHelper(SvXMLGraphicHelperMode eCreateMode)
+    : cppu::WeakComponentImplHelper<document::XGraphicObjectResolver,
+                                    document::XGraphicStorageHandler,
+                                    document::XBinaryStreamResolver>(maMutex)
+{
+    Init( nullptr, eCreateMode );
+}
+
+SvXMLGraphicHelper::SvXMLGraphicHelper()
+    : cppu::WeakComponentImplHelper<document::XGraphicObjectResolver,
+                                    document::XGraphicStorageHandler,
+                                    document::XBinaryStreamResolver>(maMutex)
+    , meCreateMode(SvXMLGraphicHelperMode::Read)
+{
+}
+
+SvXMLGraphicHelper::~SvXMLGraphicHelper()
+{
+}
+
+void SAL_CALL SvXMLGraphicHelper::disposing()
+{
+}
+
+bool SvXMLGraphicHelper::ImplGetStreamNames( const OUString& rURLStr,
+                                                 OUString& rPictureStorageName,
+                                                 OUString& rPictureStreamName )
+{
+    if (rURLStr.isEmpty())
+        return false;
+
+    const OUString aURLStr {rURLStr.copy(rURLStr.lastIndexOf(':')+1)};
+
+    if( !aURLStr.isEmpty() && aURLStr.indexOf('/')<0 ) // just one token?
+    {
+        rPictureStorageName = XML_GRAPHICSTORAGE_NAME;
+        rPictureStreamName = aURLStr;
+    }
+    else
+        SvXMLEmbeddedObjectHelper::splitObjectURL(aURLStr, rPictureStorageName, rPictureStreamName);
+
+    SAL_WARN_IF(rPictureStreamName.isEmpty(), "svx", "SvXMLGraphicHelper::ImplInsertGraphicURL: invalid scheme: " << rURLStr);
+
+    return !rPictureStreamName.isEmpty();
+}
+
+uno::Reference < embed::XStorage > SvXMLGraphicHelper::ImplGetGraphicStorage( const OUString& rStorageName )
+{
+    uno::Reference < embed::XStorage > xRetStorage;
+    if( mxRootStorage.is() )
+    {
+        try
+        {
+            maCurStorageName = rStorageName;
+            xRetStorage = mxRootStorage->openStorageElement(
+                maCurStorageName,
+                ( SvXMLGraphicHelperMode::Write == meCreateMode )
+                    ? embed::ElementModes::READWRITE
+                    : embed::ElementModes::READ );
+        }
+        catch ( uno::Exception& )
+        {
+        }
+        //#i43196# try again to open the storage element - this time readonly
+        if(!xRetStorage.is())
+        {
+            try
+            {
+                maCurStorageName = rStorageName;
+                xRetStorage = mxRootStorage->openStorageElement( maCurStorageName, embed::ElementModes::READ );
+            }
+            catch ( uno::Exception& )
+            {
+            }
+        }
+    }
+
+    return xRetStorage;
+}
+
+SvxGraphicHelperStream_Impl SvXMLGraphicHelper::ImplGetGraphicStream( const OUString& rPictureStorageName,
+                                                              const OUString& rPictureStreamName )
+{
+    SvxGraphicHelperStream_Impl aRet;
+    aRet.xStorage = ImplGetGraphicStorage( rPictureStorageName );
+
+    if( aRet.xStorage.is() )
+    {
+        sal_Int32 nMode = embed::ElementModes::READ;
+        if ( SvXMLGraphicHelperMode::Write == meCreateMode )
+        {
+            nMode = embed::ElementModes::READWRITE;
+        }
+
+        aRet.xStream = aRet.xStorage->openStreamElement( rPictureStreamName, nMode );
+        if( aRet.xStream.is() && ( SvXMLGraphicHelperMode::Write == meCreateMode ) )
+        {
+            uno::Reference < beans::XPropertySet > xProps( aRet.xStream, uno::UNO_QUERY );
+            xProps->setPropertyValue( "UseCommonStoragePasswordEncryption", uno::makeAny( true) );
+        }
+    }
+
+    return aRet;
+}
+
+OUString SvXMLGraphicHelper::ImplGetGraphicMimeType( const OUString& rFileName )
+{
+    if( ( rFileName.getLength() >= 4 ) && ( rFileName[ rFileName.getLength() - 4 ] == '.' ) )
+    {
+        const OString aExt(OUStringToOString(rFileName.copy(rFileName.getLength() - 3),
+            RTL_TEXTENCODING_ASCII_US));
+        return comphelper::GraphicMimeTypeHelper::GetMimeTypeForExtension( aExt );
+    }
+
+    return OUString();
+}
+
+Graphic SvXMLGraphicHelper::ImplReadGraphic( const OUString& rPictureStorageName,
+                                             const OUString& rPictureStreamName )
+{
+    Graphic aReturnGraphic;
+    SvxGraphicHelperStream_Impl aStream( ImplGetGraphicStream( rPictureStorageName, rPictureStreamName ) );
+    if (aStream.xStream.is())
+    {
+        GraphicFilter& rGraphicFilter = GraphicFilter::GetGraphicFilter();
+        std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(aStream.xStream));
+        Graphic aGraphic = rGraphicFilter.ImportUnloadedGraphic(*pStream);
+        if (!aGraphic.IsNone())
+            aReturnGraphic = aGraphic;
+        else
+            rGraphicFilter.ImportGraphic(aReturnGraphic, "", *pStream);
+    }
+
+    return aReturnGraphic;
+}
+
+void SvXMLGraphicHelper::Init( const uno::Reference < embed::XStorage >& rXMLStorage,
+                               SvXMLGraphicHelperMode eCreateMode,
+                               const OUString& rGraphicMimeType )
+{
+    mxRootStorage = rXMLStorage;
+    meCreateMode = eCreateMode;
+    maOutputMimeType = rGraphicMimeType;
+}
+
+rtl::Reference<SvXMLGraphicHelper> SvXMLGraphicHelper::Create( const uno::Reference < embed::XStorage >& rXMLStorage,
+                                                SvXMLGraphicHelperMode eCreateMode )
+{
+    rtl::Reference<SvXMLGraphicHelper> pThis = new SvXMLGraphicHelper;
+    pThis->Init( rXMLStorage, eCreateMode, OUString() );
+
+    return pThis;
+}
+
+rtl::Reference<SvXMLGraphicHelper> SvXMLGraphicHelper::Create( SvXMLGraphicHelperMode eCreateMode,
+                                              const OUString& rGraphicMimeType )
+{
+    rtl::Reference<SvXMLGraphicHelper> pThis = new SvXMLGraphicHelper;
+
+    pThis->Init( nullptr, eCreateMode, rGraphicMimeType );
+
+    return pThis;
+}
+
+namespace
+{
+
+void splitUserDataFromURL(OUString const & rWholeURL, OUString & rJustURL, OUString & rUserData)
+{
+    sal_Int32 nUser = rWholeURL.indexOf('?');
+    if (nUser >= 0)
+    {
+        rJustURL = rWholeURL.copy(0, nUser);
+        nUser++;
+        rUserData = rWholeURL.copy(nUser);
+    }
+    else
+    {
+        rJustURL = rWholeURL;
+    }
+}
+
+} // end anonymous namespace
+
+// XGraphicObjectResolver
+OUString SAL_CALL SvXMLGraphicHelper::resolveGraphicObjectURL( const OUString& /*rURL*/ )
+{
+    throw uno::RuntimeException("XGraphicObjectResolver has been removed in LibreOffice 6.1");
+}
+
+// XGraphicStorageHandler
+uno::Reference<graphic::XGraphic> SAL_CALL SvXMLGraphicHelper::loadGraphic(OUString const & rURL)
+{
+    osl::MutexGuard aGuard(maMutex);
+
+    uno::Reference<graphic::XGraphic> xGraphic;
+
+    OUString aURLOnly;
+    OUString aUserData;
+    splitUserDataFromURL(rURL, aURLOnly, aUserData);
+
+    auto aIterator = maGraphicObjects.find(aURLOnly);
+    if (aIterator != maGraphicObjects.end())
+    {
+        return aIterator->second;
+    }
+
+    OUString aPictureStorageName, aPictureStreamName;
+
+    if (ImplGetStreamNames(aURLOnly, aPictureStorageName, aPictureStreamName))
+    {
+        const GraphicObject aGraphicObject(ImplReadGraphic(aPictureStorageName, aPictureStreamName));
+
+        if (aGraphicObject.GetType() != GraphicType::NONE)
+        {
+            xGraphic = aGraphicObject.GetGraphic().GetXGraphic();
+            maGraphicObjects[aURLOnly] = xGraphic;
+        }
+    }
+
+    return xGraphic;
+}
+
+uno::Reference<graphic::XGraphic> SAL_CALL SvXMLGraphicHelper::loadGraphicFromOutputStream(uno::Reference<io::XOutputStream> const & rxOutputStream)
+{
+    osl::MutexGuard aGuard(maMutex);
+
+    uno::Reference<graphic::XGraphic> xGraphic;
+
+    if ((SvXMLGraphicHelperMode::Read == meCreateMode) && rxOutputStream.is())
+    {
+
+        SvXMLGraphicOutputStream* pGraphicOutputStream = static_cast<SvXMLGraphicOutputStream*>(rxOutputStream.get());
+        if (pGraphicOutputStream)
+        {
+            xGraphic = pGraphicOutputStream->GetGraphic().GetXGraphic();
+        }
+    }
+    return xGraphic;
+}
+
+OUString SAL_CALL SvXMLGraphicHelper::saveGraphicByName(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic,
+                                                        OUString & rOutSavedMimeType, OUString const & rRequestName)
+{
+    return implSaveGraphic(rxGraphic, rOutSavedMimeType, rRequestName);
+}
+
+OUString SAL_CALL SvXMLGraphicHelper::saveGraphic(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic)
+{
+    OUString aOutMimeType;
+    return implSaveGraphic(rxGraphic, aOutMimeType, OUString());
+}
+
+OUString SvXMLGraphicHelper::implSaveGraphic(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic,
+                                             OUString & rOutSavedMimeType, OUString const & rRequestName)
+{
+    Graphic aGraphic(rxGraphic);
+
+    auto aIterator = maExportGraphics.find(aGraphic);
+    if (aIterator != maExportGraphics.end())
+    {
+        auto const & aURLAndMimePair = aIterator->second;
+        rOutSavedMimeType = aURLAndMimePair.second;
+        return aURLAndMimePair.first;
+    }
+
+    GraphicObject aGraphicObject(aGraphic);
+
+    if (aGraphicObject.GetType() != GraphicType::NONE)
+    {
+        const GfxLink aGfxLink(aGraphic.GetGfxLink());
+        OUString aExtension;
+        bool bUseGfxLink = true;
+
+        if (aGfxLink.GetDataSize())
+        {
+            switch (aGfxLink.GetType())
+            {
+                case GfxLinkType::EpsBuffer: aExtension = ".eps"; break;
+                case GfxLinkType::NativeGif: aExtension = ".gif"; break;
+                // #i15508# added BMP type for better exports (checked, works)
+                case GfxLinkType::NativeBmp: aExtension = ".bmp"; break;
+                case GfxLinkType::NativeJpg: aExtension = ".jpg"; break;
+                case GfxLinkType::NativePng: aExtension = ".png"; break;
+                case GfxLinkType::NativeTif: aExtension = ".tif"; break;
+                case GfxLinkType::NativeWmf:
+                    if (aGfxLink.IsEMF())
+                        aExtension = ".emf";
+                    else
+                        aExtension = ".wmf";
+                    break;
+                case GfxLinkType::NativeMet: aExtension = ".met"; break;
+                case GfxLinkType::NativePct: aExtension = ".pct"; break;
+                case GfxLinkType::NativeSvg:
+                    // backward-compat kludge: since no released OOo
+                    // version to date can handle svg properly, wrap it up
+                    // into an svm. slight catch22 here, since strict ODF
+                    // conformance _recommends_ svg - then again, most old
+                    // ODF consumers are believed to be OOo
+                    if (SvtSaveOptions().GetODFSaneDefaultVersion() < SvtSaveOptions::ODFSVER_012
+                        || SvtSaveOptions().GetODFSaneDefaultVersion() == SvtSaveOptions::ODFSVER_012_EXT_COMPAT)
+                    {
+                        bUseGfxLink = false;
+                        aExtension = ".svm";
+                    }
+                    else
+                    {
+                        aExtension = ".svg";
+                    }
+                    break;
+                case GfxLinkType::NativePdf: aExtension = ".pdf"; break;
+
+                default:
+                    aExtension = ".grf";
+                break;
+            }
+        }
+        else
+        {
+            if (aGraphicObject.GetType() == GraphicType::Bitmap)
+            {
+                if (aGraphicObject.IsAnimated())
+                    aExtension = ".gif";
+                else
+                    aExtension = ".png";
+            }
+            else if (aGraphicObject.GetType() == GraphicType::GdiMetafile)
+            {
+                // SJ: first check if this metafile is just an eps file, then we will store the eps instead of svm
+                GDIMetaFile& rMetafile(const_cast<GDIMetaFile&>(aGraphic.GetGDIMetaFile()));
+
+                if (ImplCheckForEPS(rMetafile))
+                    aExtension = ".eps";
+                else
+                    aExtension = ".svm";
+            }
+        }
+
+        OUString rPictureStreamName;
+        if (!rRequestName.isEmpty())
+        {
+            rPictureStreamName = rRequestName + aExtension;
+        }
+        else
+        {
+            OUString sId = OStringToOUString(aGraphicObject.GetUniqueID(), RTL_TEXTENCODING_ASCII_US);
+            rPictureStreamName = sId + aExtension;
+        }
+
+        SvxGraphicHelperStream_Impl aStream(ImplGetGraphicStream(XML_GRAPHICSTORAGE_NAME, rPictureStreamName));
+
+        if (aStream.xStream.is())
+        {
+            const OUString aMimeType(ImplGetGraphicMimeType(rPictureStreamName));
+            uno::Reference<beans::XPropertySet> xProps(aStream.xStream, uno::UNO_QUERY);
+
+            // set stream properties (MediaType/Compression)
+            if (!aMimeType.isEmpty())
+            {
+                xProps->setPropertyValue("MediaType", uno::Any(aMimeType));
+            }
+
+            // picture formats that actually _do_ benefit from zip
+            // storage compression
+            // .svm pics gets compressed via ZBITMAP old-style stream
+            // option below
+            static const char* aCompressiblePics[] =
+            {
+                "image/svg+xml",
+                "image/x-emf",
+                "image/x-wmf",
+                "image/tiff",
+                "image/x-eps",
+                "image/bmp",
+                "image/x-pict"
+            };
+
+            bool bSuccess = false;
+
+            bool bCompressed = aMimeType.isEmpty();
+            if( !bCompressed )
+            {
+                for(const char* p : aCompressiblePics)
+                {
+                    if( aMimeType.equalsIgnoreAsciiCaseAscii(p) )
+                    {
+                        bCompressed = true;
+                        break;
+                    }
+                }
+            }
+
+            xProps->setPropertyValue("Compressed", Any(bCompressed));
+
+            std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(aStream.xStream));
+            if (bUseGfxLink && aGfxLink.GetDataSize() && aGfxLink.GetData())
+            {
+                pStream->WriteBytes(aGfxLink.GetData(), aGfxLink.GetDataSize());
+                rOutSavedMimeType = aMimeType;
+                bSuccess = (pStream->GetError() == ERRCODE_NONE);
+            }
+            else
+            {
+                if (aGraphic.GetType() == GraphicType::Bitmap)
+                {
+                    GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
+                    OUString aFormat;
+
+                    if (aGraphic.IsAnimated())
+                    {
+                        aFormat = "gif";
+                    }
+                    else
+                    {
+                        aFormat = "png";
+                    }
+                    rOutSavedMimeType = comphelper::GraphicMimeTypeHelper::GetMimeTypeForExtension(aFormat.toUtf8());
+
+                    bSuccess = (rFilter.ExportGraphic(aGraphic, "", *pStream, rFilter.GetExportFormatNumberForShortName(aFormat)) == ERRCODE_NONE);
+                }
+                else if (aGraphic.GetType() == GraphicType::GdiMetafile)
+                {
+                    pStream->SetVersion(SOFFICE_FILEFORMAT_8);
+                    pStream->SetCompressMode(SvStreamCompressFlags::ZBITMAP);
+                    rOutSavedMimeType = comphelper::GraphicMimeTypeHelper::GetMimeTypeForExtension("svm");
+
+                    // SJ: first check if this metafile is just an eps file, then we will store the eps instead of svm
+                    GDIMetaFile& rMtf(const_cast<GDIMetaFile&>(aGraphic.GetGDIMetaFile()));
+                    const MetaCommentAction* pComment = ImplCheckForEPS(rMtf);
+                    if (pComment)
+                    {
+                        sal_uInt32 nSize = pComment->GetDataSize();
+                        const sal_uInt8* pData = pComment->GetData();
+                        if (nSize && pData)
+                            pStream->WriteBytes(pData, nSize);
+
+                        const MetaEPSAction* pAct = static_cast<const MetaEPSAction*>(rMtf.FirstAction());
+                        const GfxLink& rLink = pAct->GetLink();
+
+                        pStream->WriteBytes(rLink.GetData(), rLink.GetDataSize());
+                    }
+                    else
+                    {
+                        rMtf.Write(*pStream);
+                    }
+
+                    bSuccess = (pStream->GetError() == ERRCODE_NONE);
+                }
+            }
+
+            if (!bSuccess)
+                return OUString();
+
+            uno::Reference<embed::XTransactedObject> xStorage(aStream.xStorage, uno::UNO_QUERY);
+            pStream.reset();
+            aStream.xStream->getOutputStream()->closeOutput();
+            if (xStorage.is())
+                xStorage->commit();
+
+            OUString aStoragePath = "Pictures/" + rPictureStreamName;
+
+            // put into cache
+            maExportGraphics[aGraphic] = std::make_pair(aStoragePath, rOutSavedMimeType);
+
+            return aStoragePath;
+        }
+    }
+
+    return OUString();
+}
+
+uno::Reference<io::XInputStream> SAL_CALL SvXMLGraphicHelper::createInputStream(uno::Reference<graphic::XGraphic> const & rxGraphic)
+{
+    Reference<XInputStream> xInputStream;
+
+    Graphic aGraphic(rxGraphic);
+    GraphicObject aGraphicObject(aGraphic);
+
+    if (SvXMLGraphicHelperMode::Write == meCreateMode)
+    {
+        OUString sMimeType = comphelper::GraphicMimeTypeHelper::GetMimeTypeForExtension(OUStringToOString(maOutputMimeType, RTL_TEXTENCODING_ASCII_US));
+        std::unique_ptr<GraphicInputStream> pInputStream(new GraphicInputStream(aGraphicObject, sMimeType));
+
+        // We release the pointer from unique_ptr and assign it to the input stream return type.
+        // In case the stream doesn't exists, unique_ptr will delete the pointer when we go out of scope.
+        if (pInputStream->exists())
+            xInputStream = pInputStream.release();
+    }
+
+    return xInputStream;
+}
+
+// XBinaryStreamResolver
+Reference< XInputStream > SAL_CALL SvXMLGraphicHelper::getInputStream( const OUString& /*rURL*/ )
+{
+    Reference<XInputStream> xRet;
+    return xRet;
+}
+
+Reference< XOutputStream > SAL_CALL SvXMLGraphicHelper::createOutputStream()
+{
+    Reference< XOutputStream > xRet;
+
+    if( SvXMLGraphicHelperMode::Read == meCreateMode )
+    {
+        std::unique_ptr<SvXMLGraphicOutputStream> pOutputStream(new SvXMLGraphicOutputStream);
+
+        if( pOutputStream->Exists() )
+        {
+            xRet = pOutputStream.release();
+            maGrfStms.push_back( xRet );
+        }
+    }
+
+    return xRet;
+}
+
+OUString SAL_CALL SvXMLGraphicHelper::resolveOutputStream( const Reference< XOutputStream >& rxBinaryStream )
+{
+    OUString aRet;
+
+    if( ( SvXMLGraphicHelperMode::Read == meCreateMode ) && rxBinaryStream.is() )
+    {
+        if( ::std::find( maGrfStms.begin(), maGrfStms.end(), rxBinaryStream ) != maGrfStms.end() )
+        {
+            SvXMLGraphicOutputStream* pOStm = static_cast< SvXMLGraphicOutputStream* >( rxBinaryStream.get() );
+
+            if( pOStm )
+            {
+                const GraphicObject& rGrfObj = pOStm->GetGraphicObject();
+                const OUString aId(OStringToOUString(
+                    rGrfObj.GetUniqueID(), RTL_TEXTENCODING_ASCII_US));
+
+                if( !aId.isEmpty() )
+                {
+                    aRet = XML_GRAPHICOBJECT_URL_BASE + aId;
+                }
+            }
+        }
+    }
+
+    return aRet;
+}
+
+// for instantiation via service manager
+namespace {
+
+namespace impl
+{
+typedef cppu::WeakComponentImplHelper<lang::XInitialization,
+                                        document::XGraphicObjectResolver,
+                                        document::XGraphicStorageHandler,
+                                        document::XBinaryStreamResolver,
+                                        lang::XServiceInfo>
+    SvXMLGraphicImportExportHelper_Base;
+
+class MutexContainer
+{
+public:
+    virtual ~MutexContainer();
+
+protected:
+    mutable ::osl::Mutex m_aMutex;
+};
+
+MutexContainer::~MutexContainer()
+{}
+
+} // namespace impl
+
+class SvXMLGraphicImportExportHelper :
+    public impl::MutexContainer,
+    public impl::SvXMLGraphicImportExportHelper_Base
+{
+public:
+    explicit SvXMLGraphicImportExportHelper( SvXMLGraphicHelperMode eMode );
+
+protected:
+    // is called from WeakComponentImplHelper when XComponent::dispose() was
+    // called from outside
+    virtual void SAL_CALL disposing() override;
+
+    // ____ XInitialization ____
+    // one argument is allowed, which is the XStorage
+    virtual void SAL_CALL initialize( const Sequence< Any >& aArguments ) override;
+
+    // ____ XGraphicObjectResolver ____
+    virtual OUString SAL_CALL resolveGraphicObjectURL( const OUString& aURL ) override;
+
+    // ____ XGraphicStorageHandler ____
+    virtual css::uno::Reference<css::graphic::XGraphic> SAL_CALL
+        loadGraphic(const OUString& aURL) override;
+
+    virtual css::uno::Reference<css::graphic::XGraphic> SAL_CALL
+        loadGraphicFromOutputStream(css::uno::Reference<css::io::XOutputStream> const & rxOutputStream) override;
+
+    virtual OUString SAL_CALL
+        saveGraphic(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic) override;
+
+    virtual OUString SAL_CALL
+        saveGraphicByName(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic, OUString & rOutSavedMimeType, OUString const & rRequestName) override;
+
+    virtual css::uno::Reference<css::io::XInputStream> SAL_CALL
+        createInputStream(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic) override;
+
+    // ____ XBinaryStreamResolver ____
+    virtual Reference< io::XInputStream > SAL_CALL getInputStream( const OUString& aURL ) override;
+    virtual Reference< io::XOutputStream > SAL_CALL createOutputStream() override;
+    virtual OUString SAL_CALL resolveOutputStream( const Reference< io::XOutputStream >& aBinaryStream ) override;
+
+    // ____ XServiceInfo ____
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+private:
+    SvXMLGraphicHelperMode              m_eGraphicHelperMode;
+    Reference< XGraphicObjectResolver > m_xGraphicObjectResolver;
+    Reference< XGraphicStorageHandler > m_xGraphicStorageHandler;
+    Reference< XBinaryStreamResolver >  m_xBinaryStreamResolver;
+};
+
+SvXMLGraphicImportExportHelper::SvXMLGraphicImportExportHelper( SvXMLGraphicHelperMode eMode ) :
+        impl::SvXMLGraphicImportExportHelper_Base( m_aMutex ),
+        m_eGraphicHelperMode( eMode )
+{}
+
+void SAL_CALL SvXMLGraphicImportExportHelper::disposing()
+{
+    Reference< XComponent > xComp( m_xGraphicObjectResolver, UNO_QUERY );
+    OSL_ASSERT( xComp.is());
+    if( xComp.is())
+        xComp->dispose();
+    // m_xBinaryStreamResolver and m_xGraphicStorageHandler are a reference to the same object,
+    // don't call dispose() again
+}
+
+// ____ XInitialization ____
+void SAL_CALL SvXMLGraphicImportExportHelper::initialize(
+    const Sequence< Any >& aArguments )
+{
+    Reference< embed::XStorage > xStorage;
+    if( aArguments.hasElements() )
+        aArguments[0] >>= xStorage;
+
+    rtl::Reference<SvXMLGraphicHelper> pHelper( SvXMLGraphicHelper::Create( xStorage, m_eGraphicHelperMode ));
+    m_xGraphicObjectResolver.set( pHelper.get() );
+    m_xGraphicStorageHandler.set( pHelper.get() );
+    m_xBinaryStreamResolver.set( pHelper.get() );
+}
+
+// ____ XGraphicObjectResolver ____
+OUString SAL_CALL SvXMLGraphicImportExportHelper::resolveGraphicObjectURL( const OUString& aURL )
+{
+    return m_xGraphicObjectResolver->resolveGraphicObjectURL( aURL );
+}
+
+// ____ XGraphicStorageHandler ____
+uno::Reference<graphic::XGraphic> SAL_CALL SvXMLGraphicImportExportHelper::loadGraphic(OUString const & rURL)
+{
+    return m_xGraphicStorageHandler->loadGraphic(rURL);
+}
+
+uno::Reference<graphic::XGraphic> SAL_CALL SvXMLGraphicImportExportHelper::loadGraphicFromOutputStream(uno::Reference<io::XOutputStream> const & rxOutputStream)
+{
+    return m_xGraphicStorageHandler->loadGraphicFromOutputStream(rxOutputStream);
+}
+
+OUString SAL_CALL SvXMLGraphicImportExportHelper::saveGraphic(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic)
+{
+    return m_xGraphicStorageHandler->saveGraphic(rxGraphic);
+}
+
+OUString SAL_CALL SvXMLGraphicImportExportHelper::saveGraphicByName(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic,
+                                                                    OUString & rOutSavedMimeType, OUString const & rRequestName)
+{
+    return m_xGraphicStorageHandler->saveGraphicByName(rxGraphic, rOutSavedMimeType, rRequestName);
+}
+
+uno::Reference<io::XInputStream> SAL_CALL SvXMLGraphicImportExportHelper::createInputStream(uno::Reference<graphic::XGraphic> const & rxGraphic)
+{
+    return m_xGraphicStorageHandler->createInputStream(rxGraphic);
+}
+
+// ____ XBinaryStreamResolver ____
+Reference< io::XInputStream > SAL_CALL SvXMLGraphicImportExportHelper::getInputStream( const OUString& aURL )
+{
+    return m_xBinaryStreamResolver->getInputStream( aURL );
+}
+Reference< io::XOutputStream > SAL_CALL SvXMLGraphicImportExportHelper::createOutputStream()
+{
+    return m_xBinaryStreamResolver->createOutputStream();
+}
+OUString SAL_CALL SvXMLGraphicImportExportHelper::resolveOutputStream( const Reference< io::XOutputStream >& aBinaryStream )
+{
+    return m_xBinaryStreamResolver->resolveOutputStream( aBinaryStream );
+}
+
+// ____ XServiceInfo ____
+OUString SAL_CALL SvXMLGraphicImportExportHelper::getImplementationName()
+{
+    if( m_eGraphicHelperMode == SvXMLGraphicHelperMode::Read )
+        return "com.sun.star.comp.Svx.GraphicImportHelper";
+    return "com.sun.star.comp.Svx.GraphicExportHelper";
+}
+
+sal_Bool SAL_CALL SvXMLGraphicImportExportHelper::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence< OUString > SAL_CALL SvXMLGraphicImportExportHelper::getSupportedServiceNames()
+{
+    return { "com.sun.star.document.GraphicObjectResolver",
+             "com.sun.star.document.GraphicStorageHandler",
+             "com.sun.star.document.BinaryStreamResolver" };
+}
+
+}
+
+/** Create this with createInstanceWithArguments. service name
+    "com.sun.star.comp.Svx.GraphicImportHelper", one argument which is the
+    XStorage.  Without arguments no helper class is created.  With an empty
+    argument the helper class is created and initialized like in the CTOR to
+    SvXMLGraphicHelper that only gets the create mode.
+
+    You should call dispose after you no longer need this component.
+
+    uses eCreateMode == SvXMLGraphicHelperMode::Read, bDirect == sal_True in
+    SvXMLGraphicHelper
+ */
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_Svx_GraphicImportHelper_get_implementation(
+    css::uno::XComponentContext *,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SvXMLGraphicImportExportHelper(SvXMLGraphicHelperMode::Read));
+}
+
+/** Create this with createInstanceWithArguments. service name
+    "com.sun.star.comp.Svx.GraphicExportHelper", one argument which is the
+    XStorage.  Without arguments no helper class is created.  With an empty
+    argument the helper class is created and initialized like in the CTOR to
+    SvXMLGraphicHelper that only gets the create mode
+
+    To write the Pictures stream, you have to call dispose at this component.
+    Make sure you call dispose before you commit the parent storage.
+
+    uses eCreateMode == SvXMLGraphicHelperMode::Write, bDirect == sal_True in
+    SvXMLGraphicHelper
+ */
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_Svx_GraphicExportHelper_get_implementation(
+    css::uno::XComponentContext *,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SvXMLGraphicImportExportHelper(SvXMLGraphicHelperMode::Write));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */