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Diffstat (limited to 'embeddedobj/source/msole/olevisual.cxx')
| -rw-r--r-- | embeddedobj/source/msole/olevisual.cxx | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/embeddedobj/source/msole/olevisual.cxx b/embeddedobj/source/msole/olevisual.cxx new file mode 100644 index 000000000..2201d7113 --- /dev/null +++ b/embeddedobj/source/msole/olevisual.cxx @@ -0,0 +1,432 @@ +/* -*- 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/lang/DisposedException.hpp> +#include <com/sun/star/embed/EmbedStates.hpp> +#include <com/sun/star/embed/EmbedMapUnits.hpp> +#include <com/sun/star/embed/EmbedMisc.hpp> +#include <com/sun/star/embed/Aspects.hpp> +#include <com/sun/star/embed/WrongStateException.hpp> +#include <com/sun/star/io/XSeekable.hpp> +#include <com/sun/star/embed/NoVisualAreaSizeException.hpp> + +#include <oleembobj.hxx> +#if defined (_WIN32) +#include <comphelper/mimeconfighelper.hxx> +#endif +#include <comphelper/seqstream.hxx> +#include <filter/msfilter/classids.hxx> +#include <sal/log.hxx> + +#if defined(_WIN32) +#include "olecomponent.hxx" +#include <tools/diagnose_ex.h> +#endif + +using namespace ::com::sun::star; +using namespace ::comphelper; + +embed::VisualRepresentation OleEmbeddedObject::GetVisualRepresentationInNativeFormat_Impl( + const uno::Reference< io::XStream >& xCachedVisRepr ) +{ + embed::VisualRepresentation aVisualRepr; + + // TODO: detect the format in the future for now use workaround + uno::Reference< io::XInputStream > xInStream = xCachedVisRepr->getInputStream(); + if ( !xInStream.is() ) + throw uno::RuntimeException(); + uno::Reference< io::XSeekable > xSeekable( xCachedVisRepr, uno::UNO_QUERY_THROW ); + + uno::Sequence< sal_Int8 > aSeq( 2 ); + xInStream->readBytes( aSeq, 2 ); + xSeekable->seek( 0 ); + if ( aSeq.getLength() == 2 && aSeq[0] == 'B' && aSeq[1] == 'M' ) + { + // it's a bitmap + aVisualRepr.Flavor = datatransfer::DataFlavor( + "application/x-openoffice-bitmap;windows_formatname=\"Bitmap\"", + "Bitmap", + cppu::UnoType<uno::Sequence< sal_Int8 >>::get() ); + } + else + { + // it's a metafile + aVisualRepr.Flavor = datatransfer::DataFlavor( + "application/x-openoffice-wmf;windows_formatname=\"Image WMF\"", + "Windows Metafile", + cppu::UnoType<uno::Sequence< sal_Int8 >>::get() ); + } + + sal_Int32 nStreamLength = static_cast<sal_Int32>(xSeekable->getLength()); + uno::Sequence< sal_Int8 > aRepresent( nStreamLength ); + xInStream->readBytes( aRepresent, nStreamLength ); + aVisualRepr.Data <<= aRepresent; + + return aVisualRepr; +} + +void SAL_CALL OleEmbeddedObject::setVisualAreaSize( sal_Int64 nAspect, const awt::Size& aSize ) +{ + // begin wrapping related part ==================== + uno::Reference< embed::XEmbeddedObject > xWrappedObject = m_xWrappedObject; + if ( xWrappedObject.is() ) + { + // the object was converted to OOo embedded object, the current implementation is now only a wrapper + xWrappedObject->setVisualAreaSize( nAspect, aSize ); + return; + } + // end wrapping related part ==================== + + ::osl::ResettableMutexGuard aGuard( m_aMutex ); + if ( m_bDisposed ) + throw lang::DisposedException(); // TODO + + SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.ole", "For iconified objects no graphical replacement is required!" ); + if ( nAspect == embed::Aspects::MSOLE_ICON ) + // no representation can be retrieved + throw embed::WrongStateException( "Illegal call!", + static_cast< ::cppu::OWeakObject* >(this) ); + + if ( m_nObjectState == -1 ) + throw embed::WrongStateException( "The object is not loaded!", + static_cast< ::cppu::OWeakObject* >(this) ); + +#ifdef _WIN32 + // RECOMPOSE_ON_RESIZE misc flag means that the object has to be switched to running state on resize. + // SetExtent() is called only for objects that require it, + // it should not be called for MSWord documents to workaround problem i49369 + // If cached size is not set, that means that this is the size initialization, so there is no need to set the real size + bool bAllowToSetExtent = + ( ( getStatus( nAspect ) & embed::EmbedMisc::MS_EMBED_RECOMPOSEONRESIZE ) + && !MimeConfigurationHelper::ClassIDsEqual(m_aClassID, MimeConfigurationHelper::GetSequenceClassID(MSO_WW8_CLASSID)) + && m_bHasCachedSize ); + + if ( m_nObjectState == embed::EmbedStates::LOADED && bAllowToSetExtent ) + { + aGuard.clear(); + try { + changeState( embed::EmbedStates::RUNNING ); + } + catch( const uno::Exception& ) + { + SAL_WARN( "embeddedobj.ole", "The object should not be resized without activation!" ); + } + aGuard.reset(); + } + + if ( m_pOleComponent && m_nObjectState != embed::EmbedStates::LOADED && bAllowToSetExtent ) + { + awt::Size aSizeToSet = aSize; + aGuard.clear(); + try { + m_pOleComponent->SetExtent( aSizeToSet, nAspect ); // will throw an exception in case of failure + m_bHasSizeToSet = false; + } + catch( const uno::Exception& ) + { + // some objects do not allow to set the size even in running state + m_bHasSizeToSet = true; + m_aSizeToSet = aSizeToSet; + m_nAspectToSet = nAspect; + } + aGuard.reset(); + } +#endif + + // cache the values + m_bHasCachedSize = true; + m_aCachedSize = aSize; + m_nCachedAspect = nAspect; +} + +awt::Size SAL_CALL OleEmbeddedObject::getVisualAreaSize( sal_Int64 nAspect ) +{ + // begin wrapping related part ==================== + uno::Reference< embed::XEmbeddedObject > xWrappedObject = m_xWrappedObject; + if ( xWrappedObject.is() ) + { + // the object was converted to OOo embedded object, the current implementation is now only a wrapper + return xWrappedObject->getVisualAreaSize( nAspect ); + } + // end wrapping related part ==================== + + ::osl::ResettableMutexGuard aGuard( m_aMutex ); + if ( m_bDisposed ) + throw lang::DisposedException(); // TODO + + SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.ole", "For iconified objects no graphical replacement is required!" ); + if ( nAspect == embed::Aspects::MSOLE_ICON ) + // no representation can be retrieved + throw embed::WrongStateException( "Illegal call!", + static_cast< ::cppu::OWeakObject* >(this) ); + + if ( m_nObjectState == -1 ) + throw embed::WrongStateException( "The object is not loaded!", + static_cast< ::cppu::OWeakObject* >(this) ); + + awt::Size aResult; + +#ifdef _WIN32 + // TODO/LATER: Support different aspects + if ( m_pOleComponent && !m_bHasSizeToSet && nAspect == embed::Aspects::MSOLE_CONTENT ) + { + try + { + // the cached size updated every time the object is stored + if ( m_bHasCachedSize ) + { + aResult = m_aCachedSize; + } + else + { + // there is no internal cache + awt::Size aSize; + aGuard.clear(); + + bool bBackToLoaded = false; + + bool bSuccess = false; + if ( getCurrentState() == embed::EmbedStates::LOADED ) + { + SAL_WARN( "embeddedobj.ole", "Loaded object has no cached size!" ); + + // try to switch the object to RUNNING state and request the value again + try { + changeState( embed::EmbedStates::RUNNING ); + // the links should be switched back to loaded state to avoid too + // many open MathType instances + bBackToLoaded = true; + } + catch( const uno::Exception& ) + { + throw embed::NoVisualAreaSizeException( + "No size available!", + static_cast< ::cppu::OWeakObject* >(this) ); + } + } + + try + { + // first try to get size using replacement image + aSize = m_pOleComponent->GetExtent( nAspect ); // will throw an exception in case of failure + bSuccess = true; + } + catch( const uno::Exception& ) + { + TOOLS_WARN_EXCEPTION("embeddedobj.ole", "OleEmbeddedObject::getVisualAreaSize: GetExtent() failed:"); + } + + if (bBackToLoaded) + { + try + { + changeState(embed::EmbedStates::LOADED); + } + catch( const uno::Exception& ) + { + TOOLS_WARN_EXCEPTION("embeddedobj.ole", "ignoring "); + } + } + + if ( !bSuccess ) + { + try + { + // second try the cached replacement image + aSize = m_pOleComponent->GetCachedExtent( nAspect ); // will throw an exception in case of failure + bSuccess = true; + } + catch( const uno::Exception& ) + { + TOOLS_WARN_EXCEPTION("embeddedobj.ole", "OleEmbeddedObject::getVisualAreaSize: GetCachedExtent() failed:"); + } + } + + if ( !bSuccess ) + { + try + { + // third try the size reported by the object + aSize = m_pOleComponent->GetRecommendedExtent( nAspect ); // will throw an exception in case of failure + bSuccess = true; + } + catch( const uno::Exception& ) + { + TOOLS_WARN_EXCEPTION("embeddedobj.ole", "OleEmbeddedObject::getVisualAreaSize: GetRecommendedExtent() failed:"); + } + } + + if ( !bSuccess ) + throw embed::NoVisualAreaSizeException( + "No size available!", + static_cast< ::cppu::OWeakObject* >(this) ); + + aGuard.reset(); + + m_aCachedSize = aSize; + m_nCachedAspect = nAspect; + m_bHasCachedSize = true; + + aResult = m_aCachedSize; + } + } + catch ( const embed::NoVisualAreaSizeException& ) + { + throw; + } + catch ( const uno::Exception& ) + { + throw embed::NoVisualAreaSizeException( + "No size available!", + static_cast< ::cppu::OWeakObject* >(this) ); + } + } + else +#endif + { + // return cached value + if ( !m_bHasCachedSize ) + { + throw embed::NoVisualAreaSizeException( + "No size available!", + static_cast< ::cppu::OWeakObject* >(this) ); + } + SAL_WARN_IF( nAspect != m_nCachedAspect, "embeddedobj.ole", "Unexpected aspect is requested!" ); + aResult = m_aCachedSize; + } + + return aResult; +} + +embed::VisualRepresentation SAL_CALL OleEmbeddedObject::getPreferredVisualRepresentation( sal_Int64 nAspect ) +{ + // begin wrapping related part ==================== + uno::Reference< embed::XEmbeddedObject > xWrappedObject = m_xWrappedObject; + if ( xWrappedObject.is() ) + { + // the object was converted to OOo embedded object, the current implementation is now only a wrapper + return xWrappedObject->getPreferredVisualRepresentation( nAspect ); + } + // end wrapping related part ==================== + + ::osl::MutexGuard aGuard( m_aMutex ); + if ( m_bDisposed ) + throw lang::DisposedException(); // TODO + + SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.ole", "For iconified objects no graphical replacement is required!" ); + if ( nAspect == embed::Aspects::MSOLE_ICON ) + // no representation can be retrieved + throw embed::WrongStateException( "Illegal call!", + static_cast< ::cppu::OWeakObject* >(this) ); + + // TODO: if the object has cached representation then it should be returned + // TODO: if the object has no cached representation and is in loaded state it should switch itself to the running state + if ( m_nObjectState == -1 ) + throw embed::WrongStateException( "The object is not loaded!", + static_cast< ::cppu::OWeakObject* >(this) ); + + // TODO: in case of different aspects they must be applied to the mediatype and XTransferable must be used + // the cache is used only as a fallback if object is not in loaded state + if ( !m_xCachedVisualRepresentation.is() && ( !m_bVisReplInitialized || m_bVisReplInStream ) + && m_nObjectState == embed::EmbedStates::LOADED ) + { + m_xCachedVisualRepresentation = TryToRetrieveCachedVisualRepresentation_Impl( m_xObjectStream, true ); + SetVisReplInStream( m_xCachedVisualRepresentation.is() ); + } + +#ifdef _WIN32 + if ( !m_xCachedVisualRepresentation.is() && m_pOleComponent ) + { + try + { + if ( m_nObjectState == embed::EmbedStates::LOADED ) + changeState( embed::EmbedStates::RUNNING ); + + datatransfer::DataFlavor aDataFlavor( + "application/x-openoffice-wmf;windows_formatname=\"Image WMF\"", + "Windows Metafile", + cppu::UnoType<uno::Sequence< sal_Int8 >>::get() ); + + embed::VisualRepresentation aVisualRepr; + aVisualRepr.Data = m_pOleComponent->getTransferData( aDataFlavor ); + aVisualRepr.Flavor = aDataFlavor; + + uno::Sequence< sal_Int8 > aVisReplSeq; + aVisualRepr.Data >>= aVisReplSeq; + if ( aVisReplSeq.getLength() ) + { + m_xCachedVisualRepresentation = GetNewFilledTempStream_Impl( + uno::Reference< io::XInputStream >( + new ::comphelper::SequenceInputStream(aVisReplSeq))); + } + + return aVisualRepr; + } + catch( const uno::Exception& ) + {} + } +#endif + + // the cache is used only as a fallback if object is not in loaded state + if ( !m_xCachedVisualRepresentation.is() && ( !m_bVisReplInitialized || m_bVisReplInStream ) ) + { + m_xCachedVisualRepresentation = TryToRetrieveCachedVisualRepresentation_Impl( m_xObjectStream ); + SetVisReplInStream( m_xCachedVisualRepresentation.is() ); + } + + if ( !m_xCachedVisualRepresentation.is() ) + { + // no representation can be retrieved + throw embed::WrongStateException( "Illegal call!", + static_cast< ::cppu::OWeakObject* >(this) ); + } + + return GetVisualRepresentationInNativeFormat_Impl( m_xCachedVisualRepresentation ); +} + +sal_Int32 SAL_CALL OleEmbeddedObject::getMapUnit( sal_Int64 nAspect ) +{ + // begin wrapping related part ==================== + uno::Reference< embed::XEmbeddedObject > xWrappedObject = m_xWrappedObject; + if ( xWrappedObject.is() ) + { + // the object was converted to OOo embedded object, the current implementation is now only a wrapper + return xWrappedObject->getMapUnit( nAspect ); + } + // end wrapping related part ==================== + + ::osl::MutexGuard aGuard( m_aMutex ); + if ( m_bDisposed ) + throw lang::DisposedException(); // TODO + + SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.ole", "For iconified objects no graphical replacement is required!" ); + if ( nAspect == embed::Aspects::MSOLE_ICON ) + // no representation can be retrieved + throw embed::WrongStateException( "Illegal call!", + static_cast< ::cppu::OWeakObject* >(this) ); + + if ( m_nObjectState == -1 ) + throw embed::WrongStateException( "The object is not loaded!", + static_cast< ::cppu::OWeakObject* >(this) ); + + return embed::EmbedMapUnits::ONE_100TH_MM; +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |