1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_dtrans.hxx"
26
27 //------------------------------------------------------------------------
28 // includes
29 //------------------------------------------------------------------------
30 #include <osl/diagnose.h>
31 #include "TxtCnvtHlp.hxx"
32 #include "DTransHelper.hxx"
33 #include "..\misc\ImplHelper.hxx"
34
35 using namespace ::com::sun::star::datatransfer;
36 using namespace ::com::sun::star::uno;
37
38 //------------------------------------------------------------------
39 // assuming a '\0' terminated string if no length specified
40 //------------------------------------------------------------------
41
CalcBuffSizeForTextConversion(UINT code_page,LPCSTR lpMultiByteString,int nLen=-1)42 int CalcBuffSizeForTextConversion( UINT code_page, LPCSTR lpMultiByteString, int nLen = -1 )
43 {
44 return ( MultiByteToWideChar( code_page,
45 0,
46 lpMultiByteString,
47 nLen,
48 NULL,
49 0 ) * sizeof( sal_Unicode ) );
50 }
51
52 //------------------------------------------------------------------
53 // assuming a '\0' terminated string if no length specified
54 //------------------------------------------------------------------
55
CalcBuffSizeForTextConversion(UINT code_page,LPCWSTR lpWideCharString,int nLen=-1)56 int CalcBuffSizeForTextConversion( UINT code_page, LPCWSTR lpWideCharString, int nLen = -1 )
57 {
58 return WideCharToMultiByte( code_page,
59 0,
60 lpWideCharString,
61 nLen,
62 NULL,
63 0,
64 NULL,
65 NULL );
66 }
67
68 //------------------------------------------------------------------
69 // converts text in one code page into unicode text
70 // automatically calculates the necessary buffer size and allocates
71 // the buffer
72 //------------------------------------------------------------------
73
MultiByteToWideCharEx(UINT cp_src,LPCSTR lpMultiByteString,sal_uInt32 lenStr,CStgTransferHelper & refDTransHelper,BOOL bEnsureTrailingZero)74 int MultiByteToWideCharEx( UINT cp_src,
75 LPCSTR lpMultiByteString,
76 sal_uInt32 lenStr,
77 CStgTransferHelper& refDTransHelper,
78 BOOL bEnsureTrailingZero )
79 {
80 OSL_ASSERT( IsValidCodePage( cp_src ) );
81 OSL_ASSERT( NULL != lpMultiByteString );
82
83 // calculate the required buff size
84 int reqSize = CalcBuffSizeForTextConversion( cp_src, lpMultiByteString, lenStr );
85
86 if ( bEnsureTrailingZero )
87 reqSize += sizeof( sal_Unicode );
88
89 // initialize the data-transfer helper
90 refDTransHelper.init( reqSize );
91
92 // setup a global memory pointer
93 CRawHGlobalPtr ptrHGlob( refDTransHelper );
94
95 // do the converssion an return
96 return MultiByteToWideChar( cp_src,
97 0,
98 lpMultiByteString,
99 lenStr,
100 static_cast< LPWSTR >( ptrHGlob.GetMemPtr( ) ),
101 ptrHGlob.MemSize( ) );
102 }
103
104 //------------------------------------------------------------------
105 // converts unicode text into text of the specified code page
106 // automatically calculates the necessary buffer size and allocates
107 // the buffer
108 //------------------------------------------------------------------
109
WideCharToMultiByteEx(UINT cp_dest,LPCWSTR lpWideCharString,sal_uInt32 lenStr,CStgTransferHelper & refDTransHelper,BOOL bEnsureTrailingZero)110 int WideCharToMultiByteEx( UINT cp_dest,
111 LPCWSTR lpWideCharString,
112 sal_uInt32 lenStr,
113 CStgTransferHelper& refDTransHelper,
114 BOOL bEnsureTrailingZero )
115 {
116 OSL_ASSERT( IsValidCodePage( cp_dest ) );
117 OSL_ASSERT( NULL != lpWideCharString );
118
119 // calculate the required buff size
120 int reqSize = CalcBuffSizeForTextConversion( cp_dest, lpWideCharString, lenStr );
121
122 if ( bEnsureTrailingZero )
123 reqSize += sizeof( sal_Int8 );
124
125 // initialize the data-transfer helper
126 refDTransHelper.init( reqSize );
127
128 // setup a global memory pointer
129 CRawHGlobalPtr ptrHGlob( refDTransHelper );
130
131 // do the converssion an return
132 return WideCharToMultiByte( cp_dest,
133 0,
134 lpWideCharString,
135 lenStr,
136 static_cast< LPSTR >( ptrHGlob.GetMemPtr( ) ),
137 ptrHGlob.MemSize( ),
138 NULL,
139 NULL );
140 }
141
142