embeddedobj/source/msole/graphconvert.cxx

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   9  * $RCSfile: graphconvert.cxx,v $
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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_embeddedobj.hxx"
  33 #include <com/sun/star/uno/Any.hxx>
  34 #include <com/sun/star/uno/Reference.hxx>
  35 #include <com/sun/star/uno/Sequence.hxx>
  36 #include <com/sun/star/embed/Aspects.hpp>
  37
  38 #include "mtnotification.hxx"
  39 #include "oleembobj.hxx"
  40
  41 // TODO: when conversion service is ready this headers should disappear
  42 #include <svtools/filter.hxx>
  43 #include <vcl/graph.hxx>
  44
  45 #include <tools/link.hxx>
  46 #include <vcl/svapp.hxx>
  47 #include <vos/mutex.hxx>
  48
  49
  50 using namespace ::com::sun::star;
  51
  52
  53 sal_Bool ConvertBufferToFormat( void* pBuf,
  54                                 sal_uInt32 nBufSize,
  55                                 const ::rtl::OUString& aFormatShortName,
  56                                 uno::Any& aResult )
  57 {
  58     // produces sequence with data in requested format and returns it in aResult
  59     if ( pBuf )
  60     {
  61         SvMemoryStream aBufStream( pBuf, nBufSize, STREAM_READ );
  62         aBufStream.ObjectOwnsMemory( sal_False );
  63
  64         Graphic aGraph;
  65         GraphicFilter aGrFilter( sal_True );
  66         if ( aGrFilter.ImportGraphic( aGraph, String(), aBufStream ) == ERRCODE_NONE )
  67         {
  68             sal_uInt16 nFormat = aGrFilter.GetExportFormatNumberForShortName( aFormatShortName );
  69
  70             if ( nFormat != GRFILTER_FORMAT_DONTKNOW )
  71             {
  72                 SvMemoryStream aNewStream( 65535, 65535 );
  73                 if ( aGrFilter.ExportGraphic( aGraph, String(), aNewStream, nFormat ) == ERRCODE_NONE )
  74                 {
  75                     /*
  76                     {
  77                         aNewStream.Seek( 0 );
  78                         SvFileStream aFile( String::CreateFromAscii( "file:///d:/test.png" ), STREAM_STD_READWRITE);
  79                         aFile.SetStreamSize( 0 );
  80                         aNewStream >> aFile;
  81                     }
  82                     */
  83
  84                     aResult <<= uno::Sequence< sal_Int8 >(
  85                                                     reinterpret_cast< const sal_Int8* >( aNewStream.GetData() ),
  86                                                     aNewStream.Seek( STREAM_SEEK_TO_END ) );
  87                     return sal_True;
  88                 }
  89             }
  90         }
  91     }
  92
  93     return sal_False;
  94 }
  95
  96 // =====================================================================
  97 // MainThreadNotificationRequest
  98 // =====================================================================
  99
 100 MainThreadNotificationRequest::MainThreadNotificationRequest( const ::rtl::Reference< OleEmbeddedObject >& xObj, sal_uInt16 nNotificationType, sal_uInt32 nAspect )
 101 : m_pObject( xObj.get() )
 102 , m_xObject( static_cast< embed::XEmbeddedObject* >( xObj.get() ) )
 103 , m_nNotificationType( nNotificationType )
 104 , m_nAspect( nAspect )
 105 {}
 106
 107 void MainThreadNotificationRequest::mainThreadWorkerStart( MainThreadNotificationRequest* pMTRequest )
 108 {
 109     if ( Application::GetMainThreadIdentifier() == osl_getThreadIdentifier( NULL ) )
 110     {
 111         // this is the main thread
 112         worker( pMTRequest, pMTRequest );
 113     }
 114     else
 115         Application::PostUserEvent( STATIC_LINK( NULL, MainThreadNotificationRequest, worker ), pMTRequest );
 116 }
 117
 118 IMPL_STATIC_LINK_NOINSTANCE( MainThreadNotificationRequest, worker, MainThreadNotificationRequest*, pMTRequest )
 119 {
 120     if ( pMTRequest )
 121     {
 122         if ( pMTRequest->m_pObject )
 123         {
 124             try
 125             {
 126                 uno::Reference< uno::XInterface > xLock = pMTRequest->m_xObject.get();
 127                 if ( xLock.is() )
 128                 {
 129                     // this is the main thread, the solar mutex must be locked
 130                     ::vos::OGuard aGuard( Application::GetSolarMutex() );
 131                     if ( pMTRequest->m_nNotificationType == OLECOMP_ONCLOSE )
 132                         pMTRequest->m_pObject->OnClosed_Impl();
 133                     else if ( pMTRequest->m_nAspect == embed::Aspects::MSOLE_CONTENT )
 134                         pMTRequest->m_pObject->OnViewChanged_Impl();
 135                     else if ( pMTRequest->m_nAspect == embed::Aspects::MSOLE_ICON )
 136                         pMTRequest->m_pObject->OnIconChanged_Impl();
 137                 }
 138             }
 139             catch( uno::Exception& )
 140             {
 141                 // ignore all the errors
 142             }
 143         }
 144
 145         delete pMTRequest;
 146     }
 147
 148     return 0;
 149 }
 150
 151 // =====================================================================
 152