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Diffstat (limited to 'embeddedobj/source/msole/graphconvert.cxx')
| -rw-r--r-- | embeddedobj/source/msole/graphconvert.cxx | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/embeddedobj/source/msole/graphconvert.cxx b/embeddedobj/source/msole/graphconvert.cxx new file mode 100644 index 000000000..f5de2b358 --- /dev/null +++ b/embeddedobj/source/msole/graphconvert.cxx @@ -0,0 +1,133 @@ +/* -*- 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/uno/Any.hxx> +#include <com/sun/star/uno/Reference.hxx> +#include <com/sun/star/uno/Sequence.hxx> +#include <com/sun/star/embed/Aspects.hpp> +#include <com/sun/star/io/XInputStream.hpp> +#include <com/sun/star/io/XOutputStream.hpp> +#include <com/sun/star/graphic/GraphicProvider.hpp> +#include <com/sun/star/graphic/XGraphicProvider.hpp> +#include <com/sun/star/graphic/XGraphic.hpp> +#include <com/sun/star/beans/PropertyValue.hpp> +#include <unotools/streamwrap.hxx> +#include <comphelper/processfactory.hxx> +#include <comphelper/seqstream.hxx> +#include <tools/stream.hxx> +#include <vcl/graphicfilter.hxx> + +#include "graphconvert.hxx" +#include "mtnotification.hxx" +#include <oleembobj.hxx> + + +using namespace ::com::sun::star; + + +bool ConvertBufferToFormat( void* pBuf, + sal_uInt32 nBufSize, + const OUString& aMimeType, + uno::Any& aResult ) +{ + // produces sequence with data in requested format and returns it in aResult + if ( pBuf ) + { + // First, in case the buffer is already in the requested format, then avoid a conversion. + SvMemoryStream aMemoryStream(pBuf, nBufSize, StreamMode::READ); + GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter(); + sal_uInt16 nRetFormat = 0; + if (rFilter.CanImportGraphic(OUString(), aMemoryStream, GRFILTER_FORMAT_DONTKNOW, &nRetFormat) == ERRCODE_NONE && + rFilter.GetImportFormatMediaType(nRetFormat) == aMimeType) + { + aResult <<= uno::Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aMemoryStream.GetData() ), aMemoryStream.TellEnd() ); + return true; + } + + uno::Sequence < sal_Int8 > aData( static_cast<sal_Int8*>(pBuf), nBufSize ); + uno::Reference < io::XInputStream > xIn = new comphelper::SequenceInputStream( aData ); + try + { + uno::Reference < graphic::XGraphicProvider > xGraphicProvider( graphic::GraphicProvider::create(comphelper::getProcessComponentContext())); + uno::Sequence< beans::PropertyValue > aMediaProperties( 1 ); + aMediaProperties[0].Name = "InputStream"; + aMediaProperties[0].Value <<= xIn; + uno::Reference< graphic::XGraphic > xGraphic( xGraphicProvider->queryGraphic( aMediaProperties ) ); + if( xGraphic.is() ) + { + SvMemoryStream aNewStream( 65535, 65535 ); + uno::Reference < io::XStream > xOut = new utl::OStreamWrapper( aNewStream ); + uno::Sequence< beans::PropertyValue > aOutMediaProperties( 2 ); + aOutMediaProperties[0].Name = "OutputStream"; + aOutMediaProperties[0].Value <<= xOut; + aOutMediaProperties[1].Name = "MimeType"; + aOutMediaProperties[1].Value <<= aMimeType; + + xGraphicProvider->storeGraphic( xGraphic, aOutMediaProperties ); + aResult <<= uno::Sequence< sal_Int8 >( static_cast< const sal_Int8* >( aNewStream.GetData() ), aNewStream.TellEnd() ); + return true; + } + } + catch (const uno::Exception&) + {} + } + + return false; +} + + +// MainThreadNotificationRequest + +MainThreadNotificationRequest::MainThreadNotificationRequest( const ::rtl::Reference< OleEmbeddedObject >& xObj, sal_uInt16 nNotificationType, sal_uInt32 nAspect ) +: m_pObject( xObj.get() ) +, m_xObject( static_cast< embed::XEmbeddedObject* >( xObj.get() ) ) +, m_nNotificationType( nNotificationType ) +, m_nAspect( nAspect ) +{} + +void SAL_CALL MainThreadNotificationRequest::notify (const uno::Any& ) +{ + if ( m_pObject ) + { + try + { + uno::Reference< uno::XInterface > xLock = m_xObject.get(); + if ( xLock.is() ) + { + // this is the main thread, the solar mutex must be locked + if ( m_nNotificationType == OLECOMP_ONCLOSE ) + m_pObject->OnClosed_Impl(); + else if ( m_nAspect == embed::Aspects::MSOLE_CONTENT ) + m_pObject->OnViewChanged_Impl(); + else if ( m_nAspect == embed::Aspects::MSOLE_ICON ) + OleEmbeddedObject::OnIconChanged_Impl(); + } + } + catch( const uno::Exception& ) + { + // ignore all the errors + } + } +} + +MainThreadNotificationRequest::~MainThreadNotificationRequest() +{ +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |