xref: /trunk/main/embeddedobj/source/msole/graphconvert.cxx (revision bfd08df8d53be340829eb05b5154718deb4e1b3d)

/**************************************************************
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_embeddedobj.hxx"
#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/XGraphicProvider.hpp>
#include <com/sun/star/graphic/XGraphic.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <tools/link.hxx>
#include <vos/mutex.hxx>
#include <unotools/streamwrap.hxx>
#include <comphelper/processfactory.hxx>
#include <comphelper/seqstream.hxx>
#include <tools/stream.hxx>

#include "mtnotification.hxx"
#include "oleembobj.hxx"


using namespace ::com::sun::star;


sal_Bool ConvertBufferToFormat( void* pBuf,
                                sal_uInt32 nBufSize,
                                const ::rtl::OUString& aMimeType,
                                uno::Any& aResult )
{
    // produces sequence with data in requested format and returns it in aResult
    if ( pBuf )
    {
        uno::Sequence < sal_Int8 > aData( (sal_Int8*)pBuf, nBufSize );
        uno::Reference < io::XInputStream > xIn = new comphelper::SequenceInputStream( aData );
        try
        {
            uno::Reference < graphic::XGraphicProvider > xGraphicProvider( comphelper::getProcessServiceFactory()->createInstance( ::rtl::OUString::createFromAscii("com.sun.star.graphic.GraphicProvider") ), uno::UNO_QUERY );
            if( xGraphicProvider.is() )
            {
                uno::Sequence< beans::PropertyValue > aMediaProperties( 1 );
                aMediaProperties[0].Name = ::rtl::OUString::createFromAscii( "InputStream" );
                aMediaProperties[0].Value <<= xIn;
                uno::Reference< graphic::XGraphic > xGraphic( xGraphicProvider->queryGraphic( aMediaProperties  ) );
                if( xGraphic.is() )
                {
                    SvMemoryStream aNewStream( 65535, 65535 );
//                  uno::Reference < io::XOutputStream > xOut = new utl::OOutputStreamHelper( aNewStream.GetLockBytes() );
                    uno::Reference < io::XStream > xOut = new utl::OStreamWrapper( aNewStream );
                    uno::Sequence< beans::PropertyValue > aOutMediaProperties( 2 );
                    aOutMediaProperties[0].Name = ::rtl::OUString::createFromAscii( "OutputStream" );
                    aOutMediaProperties[0].Value <<= xOut;
                    aOutMediaProperties[1].Name = ::rtl::OUString::createFromAscii( "MimeType" );
                    aOutMediaProperties[1].Value <<= aMimeType;

                    xGraphicProvider->storeGraphic( xGraphic, aOutMediaProperties );
                    aResult <<= uno::Sequence< sal_Int8 >( reinterpret_cast< const sal_Int8* >( aNewStream.GetData() ), aNewStream.Seek( STREAM_SEEK_TO_END ) );
                    return sal_True;
                }
            }
        }
        catch (uno::Exception&)
        {}
    }

    return sal_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& ) throw (uno::RuntimeException)
{
    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 )
                    m_pObject->OnIconChanged_Impl();
            }
        }
        catch( uno::Exception& )
        {
            // ignore all the errors
        }
    }
}

MainThreadNotificationRequest::~MainThreadNotificationRequest()
{
}