1*647f063dSAndrew Rist /**************************************************************
2cdf0e10cSrcweir *
3*647f063dSAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one
4*647f063dSAndrew Rist * or more contributor license agreements. See the NOTICE file
5*647f063dSAndrew Rist * distributed with this work for additional information
6*647f063dSAndrew Rist * regarding copyright ownership. The ASF licenses this file
7*647f063dSAndrew Rist * to you under the Apache License, Version 2.0 (the
8*647f063dSAndrew Rist * "License"); you may not use this file except in compliance
9*647f063dSAndrew Rist * with the License. You may obtain a copy of the License at
10*647f063dSAndrew Rist *
11*647f063dSAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0
12*647f063dSAndrew Rist *
13*647f063dSAndrew Rist * Unless required by applicable law or agreed to in writing,
14*647f063dSAndrew Rist * software distributed under the License is distributed on an
15*647f063dSAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*647f063dSAndrew Rist * KIND, either express or implied. See the License for the
17*647f063dSAndrew Rist * specific language governing permissions and limitations
18*647f063dSAndrew Rist * under the License.
19*647f063dSAndrew Rist *
20*647f063dSAndrew Rist *************************************************************/
21*647f063dSAndrew Rist
22*647f063dSAndrew Rist
23cdf0e10cSrcweir
24cdf0e10cSrcweir #include <osl/file.h>
25cdf0e10cSrcweir #include <rtl/ustring.h>
26cdf0e10cSrcweir
osl_defCalcTextWidth(rtl_uString * ustrText)27cdf0e10cSrcweir static sal_uInt32 SAL_CALL osl_defCalcTextWidth( rtl_uString *ustrText )
28cdf0e10cSrcweir {
29cdf0e10cSrcweir return ustrText ? ustrText->length : 0;
30cdf0e10cSrcweir }
31cdf0e10cSrcweir
32cdf0e10cSrcweir
osl_abbreviateSystemPath(rtl_uString * ustrSystemPath,rtl_uString ** pustrCompacted,sal_uInt32 uMaxWidth,oslCalcTextWidthFunc pfnCalcWidth)33cdf0e10cSrcweir oslFileError SAL_CALL osl_abbreviateSystemPath( rtl_uString *ustrSystemPath, rtl_uString **pustrCompacted, sal_uInt32 uMaxWidth, oslCalcTextWidthFunc pfnCalcWidth )
34cdf0e10cSrcweir {
35cdf0e10cSrcweir oslFileError error = osl_File_E_None;
36cdf0e10cSrcweir rtl_uString *ustrPath = NULL;
37cdf0e10cSrcweir rtl_uString *ustrFile = NULL;
38cdf0e10cSrcweir sal_uInt32 uPathWidth, uFileWidth;
39cdf0e10cSrcweir
40cdf0e10cSrcweir if ( !pfnCalcWidth )
41cdf0e10cSrcweir pfnCalcWidth = osl_defCalcTextWidth;
42cdf0e10cSrcweir
43cdf0e10cSrcweir {
44cdf0e10cSrcweir sal_Int32 iLastSlash = rtl_ustr_lastIndexOfChar_WithLength( ustrSystemPath->buffer, ustrSystemPath->length, SAL_PATHDELIMITER );
45cdf0e10cSrcweir
46cdf0e10cSrcweir if ( iLastSlash >= 0 )
47cdf0e10cSrcweir {
48cdf0e10cSrcweir rtl_uString_newFromStr_WithLength( &ustrPath, ustrSystemPath->buffer, iLastSlash );
49cdf0e10cSrcweir rtl_uString_newFromStr_WithLength( &ustrFile, &ustrSystemPath->buffer[iLastSlash], ustrSystemPath->length - iLastSlash );
50cdf0e10cSrcweir }
51cdf0e10cSrcweir else
52cdf0e10cSrcweir {
53cdf0e10cSrcweir rtl_uString_new( &ustrPath );
54cdf0e10cSrcweir rtl_uString_newFromString( &ustrFile, ustrSystemPath );
55cdf0e10cSrcweir }
56cdf0e10cSrcweir }
57cdf0e10cSrcweir
58cdf0e10cSrcweir uPathWidth = pfnCalcWidth( ustrPath );
59cdf0e10cSrcweir uFileWidth = pfnCalcWidth( ustrFile );
60cdf0e10cSrcweir
61cdf0e10cSrcweir /* First abbreviate the directory component of the path */
62cdf0e10cSrcweir
63cdf0e10cSrcweir while ( uPathWidth + uFileWidth > uMaxWidth )
64cdf0e10cSrcweir {
65cdf0e10cSrcweir if ( ustrPath->length > 3 )
66cdf0e10cSrcweir {
67cdf0e10cSrcweir ustrPath->length--;
68cdf0e10cSrcweir ustrPath->buffer[ustrPath->length-3] = '.';
69cdf0e10cSrcweir ustrPath->buffer[ustrPath->length-2] = '.';
70cdf0e10cSrcweir ustrPath->buffer[ustrPath->length-1] = '.';
71cdf0e10cSrcweir ustrPath->buffer[ustrPath->length] = 0;
72cdf0e10cSrcweir
73cdf0e10cSrcweir uPathWidth = pfnCalcWidth( ustrPath );
74cdf0e10cSrcweir }
75cdf0e10cSrcweir else
76cdf0e10cSrcweir break;
77cdf0e10cSrcweir }
78cdf0e10cSrcweir
79cdf0e10cSrcweir /* Now abbreviate file component */
80cdf0e10cSrcweir
81cdf0e10cSrcweir while ( uPathWidth + uFileWidth > uMaxWidth )
82cdf0e10cSrcweir {
83cdf0e10cSrcweir if ( ustrFile->length > 4 )
84cdf0e10cSrcweir {
85cdf0e10cSrcweir ustrFile->length--;
86cdf0e10cSrcweir ustrFile->buffer[ustrFile->length-3] = '.';
87cdf0e10cSrcweir ustrFile->buffer[ustrFile->length-2] = '.';
88cdf0e10cSrcweir ustrFile->buffer[ustrFile->length-1] = '.';
89cdf0e10cSrcweir ustrFile->buffer[ustrFile->length] = 0;
90cdf0e10cSrcweir
91cdf0e10cSrcweir uFileWidth = pfnCalcWidth( ustrFile );
92cdf0e10cSrcweir }
93cdf0e10cSrcweir else
94cdf0e10cSrcweir break;
95cdf0e10cSrcweir }
96cdf0e10cSrcweir
97cdf0e10cSrcweir rtl_uString_newConcat( pustrCompacted, ustrPath, ustrFile );
98cdf0e10cSrcweir
99cdf0e10cSrcweir /* Event now if path was compacted to ".../..." it can be to large */
100cdf0e10cSrcweir
101cdf0e10cSrcweir uPathWidth += uFileWidth;
102cdf0e10cSrcweir
103cdf0e10cSrcweir while ( uPathWidth > uMaxWidth )
104cdf0e10cSrcweir {
105cdf0e10cSrcweir (*pustrCompacted)->length--;
106cdf0e10cSrcweir (*pustrCompacted)->buffer[(*pustrCompacted)->length] = 0;
107cdf0e10cSrcweir uPathWidth = pfnCalcWidth( *pustrCompacted );
108cdf0e10cSrcweir }
109cdf0e10cSrcweir
110cdf0e10cSrcweir if ( ustrPath )
111cdf0e10cSrcweir rtl_uString_release( ustrPath );
112cdf0e10cSrcweir
113cdf0e10cSrcweir if ( ustrFile )
114cdf0e10cSrcweir rtl_uString_release( ustrFile );
115cdf0e10cSrcweir
116cdf0e10cSrcweir return error;
117cdf0e10cSrcweir }
118cdf0e10cSrcweir
119cdf0e10cSrcweir
120