1 files changed, 239 insertions, 0 deletions
diff --git a/dtrans/source/win32/dtobj/DTransHelper.cxx b/dtrans/source/win32/dtobj/DTransHelper.cxx
new file mode 100644
index 000000000000..30370fdaf3c8
--- /dev/null
+++ b/dtrans/source/win32/dtobj/DTransHelper.cxx
@@ -0,0 +1,239 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_dtrans.hxx"
+
+//------------------------------------------------------------------------
+// includes
+//------------------------------------------------------------------------
+#include <rtl/ustring.h>
+#include <osl/diagnose.h>
+#include "DTransHelper.hxx"
+
+//------------------------------------------------------------------------
+// implementation
+//------------------------------------------------------------------------
+
+CStgTransferHelper::CStgTransferHelper( sal_Bool bAutoInit,
+                                        HGLOBAL hGlob,
+                                        sal_Bool bDelStgOnRelease ) :
+    m_lpStream( NULL ),
+    m_bDelStgOnRelease( bDelStgOnRelease )
+{
+    if ( bAutoInit )
+        init( hGlob, m_bDelStgOnRelease );
+}
+
+//------------------------------------------------------------------------
+// dtor
+//------------------------------------------------------------------------
+
+
+CStgTransferHelper::~CStgTransferHelper( )
+{
+    if ( m_lpStream )
+        m_lpStream->Release( );
+}
+
+//------------------------------------------------------------------------
+// TransferData into the
+//------------------------------------------------------------------------
+
+void SAL_CALL CStgTransferHelper::write( const void* lpData, ULONG cb, ULONG* cbWritten )
+{
+    HRESULT hr = E_FAIL;
+
+    if ( m_lpStream )
+        hr = m_lpStream->Write( lpData, cb, cbWritten );
+
+    if ( FAILED( hr ) )
+        throw CStgTransferException( hr );
+
+#if OSL_DEBUG_LEVEL > 0
+    HGLOBAL hGlob;
+    hr = GetHGlobalFromStream( m_lpStream, &hGlob );
+    OSL_ASSERT( SUCCEEDED( hr ) );
+
+    /*DWORD dwSize =*/ GlobalSize( hGlob );
+    /*LPVOID lpdbgData =*/ GlobalLock( hGlob );
+    GlobalUnlock( hGlob );
+#endif
+}
+
+//------------------------------------------------------------------------
+// read
+//------------------------------------------------------------------------
+
+void SAL_CALL CStgTransferHelper::read( LPVOID pv, ULONG cb, ULONG* pcbRead )
+{
+    HRESULT hr = E_FAIL;
+
+    if ( m_lpStream )
+        hr = m_lpStream->Read( pv, cb , pcbRead );
+
+    if ( FAILED( hr ) )
+        throw CStgTransferException( hr );
+}
+
+//------------------------------------------------------------------------
+// GetHGlobal
+//------------------------------------------------------------------------
+
+HGLOBAL SAL_CALL CStgTransferHelper::getHGlobal( ) const
+{
+    OSL_ASSERT( m_lpStream );
+
+    HGLOBAL hGlob = NULL;
+
+    if ( m_lpStream )
+    {
+        HRESULT hr = GetHGlobalFromStream( m_lpStream, &hGlob );
+        if ( FAILED( hr ) )
+            hGlob = NULL;
+    }
+
+    return hGlob;
+}
+
+//------------------------------------------------------------------------
+// getIStream
+//------------------------------------------------------------------------
+
+void SAL_CALL CStgTransferHelper::getIStream( LPSTREAM* ppStream )
+{
+    OSL_ASSERT( ppStream );
+    *ppStream = m_lpStream;
+    if ( *ppStream )
+        static_cast< LPUNKNOWN >( *ppStream )->AddRef( );
+}
+
+//------------------------------------------------------------------------
+// Init
+//------------------------------------------------------------------------
+
+void SAL_CALL CStgTransferHelper::init( SIZE_T newSize,
+                                        sal_uInt32 uiFlags,
+                                        sal_Bool bDelStgOnRelease )
+{
+    cleanup( );
+
+    m_bDelStgOnRelease      = bDelStgOnRelease;
+
+    HGLOBAL hGlob = GlobalAlloc( uiFlags, newSize );
+    if ( NULL == hGlob )
+        throw CStgTransferException( STG_E_MEDIUMFULL );
+
+    HRESULT hr = CreateStreamOnHGlobal( hGlob, m_bDelStgOnRelease, &m_lpStream );
+    if ( FAILED( hr ) )
+    {
+        GlobalFree( hGlob );
+        m_lpStream = NULL;
+        throw CStgTransferException( hr );
+    }
+
+#if OSL_DEBUG_LEVEL > 0
+    STATSTG statstg;
+    hr = m_lpStream->Stat( &statstg, STATFLAG_DEFAULT );
+    OSL_ASSERT( SUCCEEDED( hr ) );
+#endif
+}
+
+//------------------------------------------------------------------------
+// Init
+//------------------------------------------------------------------------
+
+void SAL_CALL CStgTransferHelper::init( HGLOBAL hGlob,
+                                         sal_Bool bDelStgOnRelease )
+{
+    cleanup( );
+
+    m_bDelStgOnRelease      = bDelStgOnRelease;
+
+    HRESULT hr = CreateStreamOnHGlobal( hGlob, m_bDelStgOnRelease, &m_lpStream );
+    if ( FAILED( hr ) )
+        throw CStgTransferException( hr );
+}
+
+//------------------------------------------------------------------------
+// free the global memory and invalidate the stream pointer
+//------------------------------------------------------------------------
+
+void SAL_CALL CStgTransferHelper::cleanup( )
+{
+    if ( m_lpStream && !m_bDelStgOnRelease )
+    {
+        HGLOBAL hGlob;
+        GetHGlobalFromStream( m_lpStream, &hGlob );
+        GlobalFree( hGlob );
+    }
+
+    if ( m_lpStream )
+    {
+        m_lpStream->Release( );
+        m_lpStream = NULL;
+    }
+}
+
+//------------------------------------------------------------------------
+// return the size of memory we point to
+//------------------------------------------------------------------------
+
+sal_uInt32 SAL_CALL CStgTransferHelper::memSize( CLIPFORMAT cf ) const
+{
+    DWORD dwSize = 0;
+
+    if ( NULL != m_lpStream )
+    {
+        HGLOBAL hGlob;
+        GetHGlobalFromStream( m_lpStream, &hGlob );
+
+        if ( CF_TEXT == cf || RegisterClipboardFormat( "HTML Format" ) == cf )
+        {
+            sal_Char* pText = static_cast< sal_Char* >( GlobalLock( hGlob ) );
+            if ( pText )
+            {
+                dwSize = strlen(pText) + 1; // strlen + trailing '\0'
+                GlobalUnlock( hGlob );
+            }
+        }
+        else if ( CF_UNICODETEXT == cf )
+        {
+            sal_Unicode* pText = static_cast< sal_Unicode* >( GlobalLock( hGlob ) );
+            if ( pText )
+            {
+                dwSize = rtl_ustr_getLength( pText ) * sizeof( sal_Unicode );
+                GlobalUnlock( hGlob );
+            }
+        }
+        else
+            dwSize = GlobalSize( hGlob );
+    }
+
+    return dwSize;
+}
+