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Diffstat (limited to 'svtools/source/misc/embedtransfer.cxx')
| -rw-r--r-- | svtools/source/misc/embedtransfer.cxx | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/svtools/source/misc/embedtransfer.cxx b/svtools/source/misc/embedtransfer.cxx new file mode 100644 index 000000000..388a9f0f8 --- /dev/null +++ b/svtools/source/misc/embedtransfer.cxx @@ -0,0 +1,250 @@ +/* -*- 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 <com/sun/star/embed/XEmbeddedObject.hpp> +#include <com/sun/star/embed/XEmbedPersist.hpp> +#include <com/sun/star/embed/NoVisualAreaSizeException.hpp> +#include <com/sun/star/datatransfer/XTransferable.hpp> +#include <com/sun/star/embed/Aspects.hpp> +#include <osl/diagnose.h> +#include <sot/exchange.hxx> +#include <svtools/embedtransfer.hxx> +#include <tools/mapunit.hxx> +#include <vcl/outdev.hxx> +#include <vcl/filter/SvmWriter.hxx> +#include <vcl/gdimtf.hxx> +#include <comphelper/fileformat.h> +#include <comphelper/propertysequence.hxx> +#include <comphelper/storagehelper.hxx> +#include <unotools/ucbstreamhelper.hxx> +#include <unotools/streamwrap.hxx> +#include <unotools/tempfile.hxx> +#include <toolkit/helper/vclunohelper.hxx> + +#include <svtools/embedhlp.hxx> + +using namespace ::com::sun::star; + +SvEmbedTransferHelper::SvEmbedTransferHelper( const uno::Reference< embed::XEmbeddedObject >& xObj, + const Graphic* pGraphic, + sal_Int64 nAspect ) +: m_xObj( xObj ) +, m_pGraphic( pGraphic ? new Graphic( *pGraphic ) : nullptr ) +, m_nAspect( nAspect ) +{ + if( xObj.is() ) + { + TransferableObjectDescriptor aObjDesc; + + FillTransferableObjectDescriptor( aObjDesc, m_xObj, nullptr, m_nAspect ); + PrepareOLE( aObjDesc ); + } +} + + +SvEmbedTransferHelper::~SvEmbedTransferHelper() +{ +} + +void SvEmbedTransferHelper::SetParentShellID( const OUString& rShellID ) +{ + maParentShellID = rShellID; +} + + +void SvEmbedTransferHelper::AddSupportedFormats() +{ + AddFormat( SotClipboardFormatId::EMBED_SOURCE ); + AddFormat( SotClipboardFormatId::OBJECTDESCRIPTOR ); + AddFormat( SotClipboardFormatId::GDIMETAFILE ); + AddFormat( SotClipboardFormatId::BITMAP ); +} + + +bool SvEmbedTransferHelper::GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) +{ + bool bRet = false; + + if( m_xObj.is() ) + { + try + { + SotClipboardFormatId nFormat = SotExchange::GetFormat( rFlavor ); + if( HasFormat( nFormat ) ) + { + if( nFormat == SotClipboardFormatId::OBJECTDESCRIPTOR ) + { + TransferableObjectDescriptor aDesc; + FillTransferableObjectDescriptor( aDesc, m_xObj, m_pGraphic.get(), m_nAspect ); + bRet = SetTransferableObjectDescriptor( aDesc ); + } + else if( nFormat == SotClipboardFormatId::EMBED_SOURCE ) + { + try + { + // TODO/LATER: Probably the graphic should be copied here as well + // currently it is handled by the applications + utl::TempFile aTmp; + aTmp.EnableKillingFile(); + uno::Reference < embed::XEmbedPersist > xPers( m_xObj, uno::UNO_QUERY ); + if ( xPers.is() ) + { + uno::Reference < embed::XStorage > xStg = comphelper::OStorageHelper::GetTemporaryStorage(); + OUString aName( "Dummy" ); + SvStream* pStream = nullptr; + bool bDeleteStream = false; + uno::Sequence < beans::PropertyValue > aEmpty; + uno::Sequence<beans::PropertyValue> aObjArgs( comphelper::InitPropertySequence({ + { "SourceShellID", uno::Any(maParentShellID) }, + { "DestinationShellID", uno::Any(rDestDoc) } + })); + xPers->storeToEntry(xStg, aName, aEmpty, aObjArgs); + if ( xStg->isStreamElement( aName ) ) + { + uno::Reference < io::XStream > xStm = xStg->cloneStreamElement( aName ); + pStream = utl::UcbStreamHelper::CreateStream( xStm ).release(); + bDeleteStream = true; + } + else + { + pStream = aTmp.GetStream( StreamMode::STD_READWRITE ); + uno::Reference < embed::XStorage > xStor = comphelper::OStorageHelper::GetStorageFromStream( new utl::OStreamWrapper( *pStream ) ); + xStg->openStorageElement( aName, embed::ElementModes::READ )->copyToStorage( xStor ); + } + + const sal_uInt32 nLen = pStream->TellEnd(); + css::uno::Sequence< sal_Int8 > aSeq( nLen ); + + pStream->Seek( STREAM_SEEK_TO_BEGIN ); + pStream->ReadBytes(aSeq.getArray(), nLen); + if ( bDeleteStream ) + delete pStream; + + bRet = aSeq.hasElements(); + if( bRet ) + { + SetAny( uno::Any(aSeq) ); + } + } + else + { + //TODO/LATER: how to handle objects without persistence?! + } + } + catch ( uno::Exception& ) + { + } + } + else if ( nFormat == SotClipboardFormatId::GDIMETAFILE && m_pGraphic ) + { + SvMemoryStream aMemStm( 65535, 65535 ); + aMemStm.SetVersion( SOFFICE_FILEFORMAT_CURRENT ); + + const GDIMetaFile& aMetaFile = m_pGraphic->GetGDIMetaFile(); + SvmWriter aWriter( aMemStm ); + aWriter.Write( aMetaFile ); + uno::Any aAny; + aAny <<= uno::Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemStm.GetData() ), + aMemStm.TellEnd() ); + SetAny( aAny ); + bRet = true; + } + else if ( ( nFormat == SotClipboardFormatId::BITMAP || nFormat == SotClipboardFormatId::PNG ) && m_pGraphic ) + { + bRet = SetBitmapEx( m_pGraphic->GetBitmapEx(), rFlavor ); + } + else if ( m_xObj.is() && ::svt::EmbeddedObjectRef::TryRunningState( m_xObj ) ) + { + uno::Reference< datatransfer::XTransferable > xTransferable( m_xObj->getComponent(), uno::UNO_QUERY ); + if ( xTransferable.is() ) + { + uno::Any aAny = xTransferable->getTransferData( rFlavor ); + SetAny( aAny ); + bRet = true; + } + } + } + } + catch( uno::Exception& ) + { + // Error handling? + } + } + + return bRet; +} + + +void SvEmbedTransferHelper::ObjectReleased() +{ + m_xObj.clear(); +} + +void SvEmbedTransferHelper::FillTransferableObjectDescriptor( TransferableObjectDescriptor& rDesc, + const css::uno::Reference< css::embed::XEmbeddedObject >& xObj, + const Graphic* pGraphic, + sal_Int64 nAspect ) +{ + //TODO/LATER: need TypeName to fill it into the Descriptor (will be shown in listbox) + css::datatransfer::DataFlavor aFlavor; + SotExchange::GetFormatDataFlavor( SotClipboardFormatId::OBJECTDESCRIPTOR, aFlavor ); + + rDesc.maClassName = SvGlobalName( xObj->getClassID() ); + rDesc.maTypeName = aFlavor.HumanPresentableName; + + //TODO/LATER: the aspect size in the descriptor is wrong, unfortunately the stream + // representation of the descriptor allows only 4 bytes for the aspect + // so for internal transport something different should be found + rDesc.mnViewAspect = sal::static_int_cast<sal_uInt16>( nAspect ); + + Size aSize; + MapMode aMapMode( MapUnit::Map100thMM ); + if ( nAspect == embed::Aspects::MSOLE_ICON ) + { + if ( pGraphic ) + { + aMapMode = pGraphic->GetPrefMapMode(); + aSize = pGraphic->GetPrefSize(); + } + else + aSize = Size( 2500, 2500 ); + } + else + { + try + { + awt::Size aSz = xObj->getVisualAreaSize( rDesc.mnViewAspect ); + aSize = Size( aSz.Width, aSz.Height ); + } + catch( embed::NoVisualAreaSizeException& ) + { + OSL_FAIL( "Can not get visual area size!" ); + aSize = Size( 5000, 5000 ); + } + + // TODO/LEAN: getMapUnit can switch object to running state + aMapMode = MapMode( VCLUnoHelper::UnoEmbed2VCLMapUnit( xObj->getMapUnit( rDesc.mnViewAspect ) ) ); + } + + rDesc.maSize = OutputDevice::LogicToLogic( aSize, aMapMode, MapMode( MapUnit::Map100thMM ) ); + rDesc.maDragStartPos = Point(); + rDesc.maDisplayName.clear(); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |