1 files changed, 145 insertions, 0 deletions
diff --git a/dtrans/source/win32/dtobj/TxtCnvtHlp.cxx b/dtrans/source/win32/dtobj/TxtCnvtHlp.cxx
new file mode 100644
index 000000000000..3eecad271567
--- /dev/null
+++ b/dtrans/source/win32/dtobj/TxtCnvtHlp.cxx
@@ -0,0 +1,145 @@
+/*************************************************************************
+ *
+ * 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 <osl/diagnose.h>
+#include "TxtCnvtHlp.hxx"
+#include "DTransHelper.hxx"
+#include "..\misc\ImplHelper.hxx"
+
+using namespace ::com::sun::star::datatransfer;
+using namespace ::com::sun::star::uno;
+
+//------------------------------------------------------------------
+// assuming a '\0' terminated string if no length specified
+//------------------------------------------------------------------
+
+int CalcBuffSizeForTextConversion( UINT code_page, LPCSTR lpMultiByteString, int nLen = -1 )
+{
+    return ( MultiByteToWideChar( code_page,
+                                0,
+                                lpMultiByteString,
+                                nLen,
+                                NULL,
+                                0 ) * sizeof( sal_Unicode ) );
+}
+
+//------------------------------------------------------------------
+// assuming a '\0' terminated string if no length specified
+//------------------------------------------------------------------
+
+int CalcBuffSizeForTextConversion( UINT code_page, LPCWSTR lpWideCharString, int nLen = -1 )
+{
+    return WideCharToMultiByte( code_page,
+                                0,
+                                lpWideCharString,
+                                nLen,
+                                NULL,
+                                0,
+                                NULL,
+                                NULL );
+}
+
+//------------------------------------------------------------------
+// converts text in one code page into unicode text
+// automatically calculates the necessary buffer size and allocates
+// the buffer
+//------------------------------------------------------------------
+
+int MultiByteToWideCharEx( UINT cp_src,
+                           LPCSTR lpMultiByteString,
+                           sal_uInt32 lenStr,
+                           CStgTransferHelper& refDTransHelper,
+                           BOOL bEnsureTrailingZero )
+{
+    OSL_ASSERT( IsValidCodePage( cp_src ) );
+    OSL_ASSERT( NULL != lpMultiByteString );
+
+    // calculate the required buff size
+    int reqSize = CalcBuffSizeForTextConversion( cp_src, lpMultiByteString, lenStr );
+
+    if ( bEnsureTrailingZero )
+        reqSize += sizeof( sal_Unicode );
+
+    // initialize the data-transfer helper
+    refDTransHelper.init( reqSize );
+
+    // setup a global memory pointer
+    CRawHGlobalPtr ptrHGlob( refDTransHelper );
+
+    // do the converssion an return
+    return MultiByteToWideChar( cp_src,
+                                0,
+                                lpMultiByteString,
+                                lenStr,
+                                static_cast< LPWSTR >( ptrHGlob.GetMemPtr( ) ),
+                                ptrHGlob.MemSize( ) );
+}
+
+//------------------------------------------------------------------
+// converts unicode text into text of the specified code page
+// automatically calculates the necessary buffer size and allocates
+// the buffer
+//------------------------------------------------------------------
+
+int WideCharToMultiByteEx( UINT cp_dest,
+                           LPCWSTR lpWideCharString,
+                           sal_uInt32 lenStr,
+                           CStgTransferHelper& refDTransHelper,
+                           BOOL bEnsureTrailingZero )
+{
+    OSL_ASSERT( IsValidCodePage( cp_dest ) );
+    OSL_ASSERT( NULL != lpWideCharString );
+
+    // calculate the required buff size
+    int reqSize = CalcBuffSizeForTextConversion( cp_dest, lpWideCharString, lenStr );
+
+    if ( bEnsureTrailingZero )
+        reqSize += sizeof( sal_Int8 );
+
+    // initialize the data-transfer helper
+    refDTransHelper.init( reqSize );
+
+    // setup a global memory pointer
+    CRawHGlobalPtr ptrHGlob( refDTransHelper );
+
+    // do the converssion an return
+    return WideCharToMultiByte( cp_dest,
+                                0,
+                                lpWideCharString,
+                                lenStr,
+                                static_cast< LPSTR >( ptrHGlob.GetMemPtr( ) ),
+                                ptrHGlob.MemSize( ),
+                                NULL,
+                                NULL );
+}
+