embeddedobj/source/msole/graphconvert.cxx

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  28
  29 #include <com/sun/star/uno/Any.hxx>
  30 #include <com/sun/star/uno/Reference.hxx>
  31 #include <com/sun/star/uno/Sequence.hxx>
  32 #include <com/sun/star/embed/Aspects.hpp>
  33 #include <com/sun/star/io/XInputStream.hpp>
  34 #include <com/sun/star/io/XOutputStream.hpp>
  35 #include <com/sun/star/graphic/GraphicProvider.hpp>
  36 #include <com/sun/star/graphic/XGraphicProvider.hpp>
  37 #include <com/sun/star/graphic/XGraphic.hpp>
  38 #include <com/sun/star/beans/PropertyValue.hpp>
  39 #include <osl/mutex.hxx>
  40 #include <unotools/streamwrap.hxx>
  41 #include <comphelper/processfactory.hxx>
  42 #include <comphelper/seqstream.hxx>
  43 #include <tools/stream.hxx>
  44
  45 #include "mtnotification.hxx"
  46 #include "oleembobj.hxx"
  47
  48
  49 using namespace ::com::sun::star;
  50
  51
  52 sal_Bool ConvertBufferToFormat( void* pBuf,
  53                                 sal_uInt32 nBufSize,
  54                                 const ::rtl::OUString& aMimeType,
  55                                 uno::Any& aResult )
  56 {
  57     // produces sequence with data in requested format and returns it in aResult
  58     if ( pBuf )
  59     {
  60         uno::Sequence < sal_Int8 > aData( (sal_Int8*)pBuf, nBufSize );
  61         uno::Reference < io::XInputStream > xIn = new comphelper::SequenceInputStream( aData );
  62         try
  63         {
  64             uno::Reference < graphic::XGraphicProvider > xGraphicProvider( graphic::GraphicProvider::create(comphelper::getProcessComponentContext()));
  65             uno::Sequence< beans::PropertyValue > aMediaProperties( 1 );
  66             aMediaProperties[0].Name = ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "InputStream" ));
  67             aMediaProperties[0].Value <<= xIn;
  68             uno::Reference< graphic::XGraphic > xGraphic( xGraphicProvider->queryGraphic( aMediaProperties  ) );
  69             if( xGraphic.is() )
  70             {
  71                 SvMemoryStream aNewStream( 65535, 65535 );
  72                 uno::Reference < io::XStream > xOut = new utl::OStreamWrapper( aNewStream );
  73                 uno::Sequence< beans::PropertyValue > aOutMediaProperties( 2 );
  74                 aOutMediaProperties[0].Name = ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "OutputStream" ));
  75                 aOutMediaProperties[0].Value <<= xOut;
  76                 aOutMediaProperties[1].Name = ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( "MimeType" ));
  77                 aOutMediaProperties[1].Value <<= aMimeType;
  78
  79                 xGraphicProvider->storeGraphic( xGraphic, aOutMediaProperties );
  80                 aResult <<= uno::Sequence< sal_Int8 >( reinterpret_cast< const sal_Int8* >( aNewStream.GetData() ), aNewStream.Seek( STREAM_SEEK_TO_END ) );
  81                 return sal_True;
  82             }
  83         }
  84         catch (const uno::Exception&)
  85         {}
  86     }
  87
  88     return sal_False;
  89 }
  90
  91 // =====================================================================
  92 // MainThreadNotificationRequest
  93 // =====================================================================
  94 MainThreadNotificationRequest::MainThreadNotificationRequest( const ::rtl::Reference< OleEmbeddedObject >& xObj, sal_uInt16 nNotificationType, sal_uInt32 nAspect )
  95 : m_pObject( xObj.get() )
  96 , m_xObject( static_cast< embed::XEmbeddedObject* >( xObj.get() ) )
  97 , m_nNotificationType( nNotificationType )
  98 , m_nAspect( nAspect )
  99 {}
 100
 101 void SAL_CALL MainThreadNotificationRequest::notify (const uno::Any& ) throw (uno::RuntimeException)
 102 {
 103     if ( m_pObject )
 104     {
 105         try
 106         {
 107             uno::Reference< uno::XInterface > xLock = m_xObject.get();
 108             if ( xLock.is() )
 109             {
 110                 // this is the main thread, the solar mutex must be locked
 111                 if ( m_nNotificationType == OLECOMP_ONCLOSE )
 112                     m_pObject->OnClosed_Impl();
 113                 else if ( m_nAspect == embed::Aspects::MSOLE_CONTENT )
 114                     m_pObject->OnViewChanged_Impl();
 115                 else if ( m_nAspect == embed::Aspects::MSOLE_ICON )
 116                     m_pObject->OnIconChanged_Impl();
 117             }
 118         }
 119         catch( const uno::Exception& )
 120         {
 121             // ignore all the errors
 122         }
 123     }
 124 }
 125
 126 MainThreadNotificationRequest::~MainThreadNotificationRequest()
 127 {
 128 }
 129
 130 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */