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Diffstat (limited to '')
| -rw-r--r-- | svx/source/xml/xmlgrhlp.cxx | 1120 |
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: */ |