embeddedobj/source/msole/graphconvert.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <com/sun/star/uno/Any.hxx>
  21 #include <com/sun/star/uno/Reference.hxx>
  22 #include <com/sun/star/uno/Sequence.hxx>
  23 #include <com/sun/star/embed/Aspects.hpp>
  24 #include <com/sun/star/io/XInputStream.hpp>
  25 #include <com/sun/star/io/XOutputStream.hpp>
  26 #include <com/sun/star/graphic/GraphicProvider.hpp>
  27 #include <com/sun/star/graphic/XGraphicProvider.hpp>
  28 #include <com/sun/star/graphic/XGraphic.hpp>
  29 #include <com/sun/star/beans/PropertyValue.hpp>
  30 #include <osl/mutex.hxx>
  31 #include <unotools/streamwrap.hxx>
  32 #include <comphelper/processfactory.hxx>
  33 #include <comphelper/seqstream.hxx>
  34 #include <tools/stream.hxx>
  35
  36 #include "mtnotification.hxx"
  37 #include "oleembobj.hxx"
  38
  39
  40 using namespace ::com::sun::star;
  41
  42
  43 sal_Bool ConvertBufferToFormat( void* pBuf,
  44                                 sal_uInt32 nBufSize,
  45                                 const OUString& aMimeType,
  46                                 uno::Any& aResult )
  47 {
  48     // produces sequence with data in requested format and returns it in aResult
  49     if ( pBuf )
  50     {
  51         uno::Sequence < sal_Int8 > aData( (sal_Int8*)pBuf, nBufSize );
  52         uno::Reference < io::XInputStream > xIn = new comphelper::SequenceInputStream( aData );
  53         try
  54         {
  55             uno::Reference < graphic::XGraphicProvider > xGraphicProvider( graphic::GraphicProvider::create(comphelper::getProcessComponentContext()));
  56             uno::Sequence< beans::PropertyValue > aMediaProperties( 1 );
  57             aMediaProperties[0].Name = "InputStream";
  58             aMediaProperties[0].Value <<= xIn;
  59             uno::Reference< graphic::XGraphic > xGraphic( xGraphicProvider->queryGraphic( aMediaProperties  ) );
  60             if( xGraphic.is() )
  61             {
  62                 SvMemoryStream aNewStream( 65535, 65535 );
  63                 uno::Reference < io::XStream > xOut = new utl::OStreamWrapper( aNewStream );
  64                 uno::Sequence< beans::PropertyValue > aOutMediaProperties( 2 );
  65                 aOutMediaProperties[0].Name = "OutputStream";
  66                 aOutMediaProperties[0].Value <<= xOut;
  67                 aOutMediaProperties[1].Name = "MimeType";
  68                 aOutMediaProperties[1].Value <<= aMimeType;
  69
  70                 xGraphicProvider->storeGraphic( xGraphic, aOutMediaProperties );
  71                 aResult <<= uno::Sequence< sal_Int8 >( reinterpret_cast< const sal_Int8* >( aNewStream.GetData() ), aNewStream.Seek( STREAM_SEEK_TO_END ) );
  72                 return sal_True;
  73             }
  74         }
  75         catch (const uno::Exception&)
  76         {}
  77     }
  78
  79     return sal_False;
  80 }
  81
  82 // =====================================================================
  83 // MainThreadNotificationRequest
  84 // =====================================================================
  85 MainThreadNotificationRequest::MainThreadNotificationRequest( const ::rtl::Reference< OleEmbeddedObject >& xObj, sal_uInt16 nNotificationType, sal_uInt32 nAspect )
  86 : m_pObject( xObj.get() )
  87 , m_xObject( static_cast< embed::XEmbeddedObject* >( xObj.get() ) )
  88 , m_nNotificationType( nNotificationType )
  89 , m_nAspect( nAspect )
  90 {}
  91
  92 void SAL_CALL MainThreadNotificationRequest::notify (const uno::Any& ) throw (uno::RuntimeException)
  93 {
  94     if ( m_pObject )
  95     {
  96         try
  97         {
  98             uno::Reference< uno::XInterface > xLock = m_xObject.get();
  99             if ( xLock.is() )
 100             {
 101                 // this is the main thread, the solar mutex must be locked
 102                 if ( m_nNotificationType == OLECOMP_ONCLOSE )
 103                     m_pObject->OnClosed_Impl();
 104                 else if ( m_nAspect == embed::Aspects::MSOLE_CONTENT )
 105                     m_pObject->OnViewChanged_Impl();
 106                 else if ( m_nAspect == embed::Aspects::MSOLE_ICON )
 107                     m_pObject->OnIconChanged_Impl();
 108             }
 109         }
 110         catch( const uno::Exception& )
 111         {
 112             // ignore all the errors
 113         }
 114     }
 115 }
 116
 117 MainThreadNotificationRequest::~MainThreadNotificationRequest()
 118 {
 119 }
 120
 121 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */