1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski
23*b1cdbd2cSJim Jagielski
24*b1cdbd2cSJim Jagielski #include <osl/file.h>
25*b1cdbd2cSJim Jagielski #include <rtl/ustring.h>
26*b1cdbd2cSJim Jagielski
osl_defCalcTextWidth(rtl_uString * ustrText)27*b1cdbd2cSJim Jagielski static sal_uInt32 SAL_CALL osl_defCalcTextWidth( rtl_uString *ustrText )
28*b1cdbd2cSJim Jagielski {
29*b1cdbd2cSJim Jagielski return ustrText ? ustrText->length : 0;
30*b1cdbd2cSJim Jagielski }
31*b1cdbd2cSJim Jagielski
32*b1cdbd2cSJim Jagielski
osl_abbreviateSystemPath(rtl_uString * ustrSystemPath,rtl_uString ** pustrCompacted,sal_uInt32 uMaxWidth,oslCalcTextWidthFunc pfnCalcWidth)33*b1cdbd2cSJim Jagielski oslFileError SAL_CALL osl_abbreviateSystemPath( rtl_uString *ustrSystemPath, rtl_uString **pustrCompacted, sal_uInt32 uMaxWidth, oslCalcTextWidthFunc pfnCalcWidth )
34*b1cdbd2cSJim Jagielski {
35*b1cdbd2cSJim Jagielski oslFileError error = osl_File_E_None;
36*b1cdbd2cSJim Jagielski rtl_uString *ustrPath = NULL;
37*b1cdbd2cSJim Jagielski rtl_uString *ustrFile = NULL;
38*b1cdbd2cSJim Jagielski sal_uInt32 uPathWidth, uFileWidth;
39*b1cdbd2cSJim Jagielski
40*b1cdbd2cSJim Jagielski if ( !pfnCalcWidth )
41*b1cdbd2cSJim Jagielski pfnCalcWidth = osl_defCalcTextWidth;
42*b1cdbd2cSJim Jagielski
43*b1cdbd2cSJim Jagielski {
44*b1cdbd2cSJim Jagielski sal_Int32 iLastSlash = rtl_ustr_lastIndexOfChar_WithLength( ustrSystemPath->buffer, ustrSystemPath->length, SAL_PATHDELIMITER );
45*b1cdbd2cSJim Jagielski
46*b1cdbd2cSJim Jagielski if ( iLastSlash >= 0 )
47*b1cdbd2cSJim Jagielski {
48*b1cdbd2cSJim Jagielski rtl_uString_newFromStr_WithLength( &ustrPath, ustrSystemPath->buffer, iLastSlash );
49*b1cdbd2cSJim Jagielski rtl_uString_newFromStr_WithLength( &ustrFile, &ustrSystemPath->buffer[iLastSlash], ustrSystemPath->length - iLastSlash );
50*b1cdbd2cSJim Jagielski }
51*b1cdbd2cSJim Jagielski else
52*b1cdbd2cSJim Jagielski {
53*b1cdbd2cSJim Jagielski rtl_uString_new( &ustrPath );
54*b1cdbd2cSJim Jagielski rtl_uString_newFromString( &ustrFile, ustrSystemPath );
55*b1cdbd2cSJim Jagielski }
56*b1cdbd2cSJim Jagielski }
57*b1cdbd2cSJim Jagielski
58*b1cdbd2cSJim Jagielski uPathWidth = pfnCalcWidth( ustrPath );
59*b1cdbd2cSJim Jagielski uFileWidth = pfnCalcWidth( ustrFile );
60*b1cdbd2cSJim Jagielski
61*b1cdbd2cSJim Jagielski /* First abbreviate the directory component of the path */
62*b1cdbd2cSJim Jagielski
63*b1cdbd2cSJim Jagielski while ( uPathWidth + uFileWidth > uMaxWidth )
64*b1cdbd2cSJim Jagielski {
65*b1cdbd2cSJim Jagielski if ( ustrPath->length > 3 )
66*b1cdbd2cSJim Jagielski {
67*b1cdbd2cSJim Jagielski ustrPath->length--;
68*b1cdbd2cSJim Jagielski ustrPath->buffer[ustrPath->length-3] = '.';
69*b1cdbd2cSJim Jagielski ustrPath->buffer[ustrPath->length-2] = '.';
70*b1cdbd2cSJim Jagielski ustrPath->buffer[ustrPath->length-1] = '.';
71*b1cdbd2cSJim Jagielski ustrPath->buffer[ustrPath->length] = 0;
72*b1cdbd2cSJim Jagielski
73*b1cdbd2cSJim Jagielski uPathWidth = pfnCalcWidth( ustrPath );
74*b1cdbd2cSJim Jagielski }
75*b1cdbd2cSJim Jagielski else
76*b1cdbd2cSJim Jagielski break;
77*b1cdbd2cSJim Jagielski }
78*b1cdbd2cSJim Jagielski
79*b1cdbd2cSJim Jagielski /* Now abbreviate file component */
80*b1cdbd2cSJim Jagielski
81*b1cdbd2cSJim Jagielski while ( uPathWidth + uFileWidth > uMaxWidth )
82*b1cdbd2cSJim Jagielski {
83*b1cdbd2cSJim Jagielski if ( ustrFile->length > 4 )
84*b1cdbd2cSJim Jagielski {
85*b1cdbd2cSJim Jagielski ustrFile->length--;
86*b1cdbd2cSJim Jagielski ustrFile->buffer[ustrFile->length-3] = '.';
87*b1cdbd2cSJim Jagielski ustrFile->buffer[ustrFile->length-2] = '.';
88*b1cdbd2cSJim Jagielski ustrFile->buffer[ustrFile->length-1] = '.';
89*b1cdbd2cSJim Jagielski ustrFile->buffer[ustrFile->length] = 0;
90*b1cdbd2cSJim Jagielski
91*b1cdbd2cSJim Jagielski uFileWidth = pfnCalcWidth( ustrFile );
92*b1cdbd2cSJim Jagielski }
93*b1cdbd2cSJim Jagielski else
94*b1cdbd2cSJim Jagielski break;
95*b1cdbd2cSJim Jagielski }
96*b1cdbd2cSJim Jagielski
97*b1cdbd2cSJim Jagielski rtl_uString_newConcat( pustrCompacted, ustrPath, ustrFile );
98*b1cdbd2cSJim Jagielski
99*b1cdbd2cSJim Jagielski /* Event now if path was compacted to ".../..." it can be to large */
100*b1cdbd2cSJim Jagielski
101*b1cdbd2cSJim Jagielski uPathWidth += uFileWidth;
102*b1cdbd2cSJim Jagielski
103*b1cdbd2cSJim Jagielski while ( uPathWidth > uMaxWidth )
104*b1cdbd2cSJim Jagielski {
105*b1cdbd2cSJim Jagielski (*pustrCompacted)->length--;
106*b1cdbd2cSJim Jagielski (*pustrCompacted)->buffer[(*pustrCompacted)->length] = 0;
107*b1cdbd2cSJim Jagielski uPathWidth = pfnCalcWidth( *pustrCompacted );
108*b1cdbd2cSJim Jagielski }
109*b1cdbd2cSJim Jagielski
110*b1cdbd2cSJim Jagielski if ( ustrPath )
111*b1cdbd2cSJim Jagielski rtl_uString_release( ustrPath );
112*b1cdbd2cSJim Jagielski
113*b1cdbd2cSJim Jagielski if ( ustrFile )
114*b1cdbd2cSJim Jagielski rtl_uString_release( ustrFile );
115*b1cdbd2cSJim Jagielski
116*b1cdbd2cSJim Jagielski return error;
117*b1cdbd2cSJim Jagielski }
118*b1cdbd2cSJim Jagielski
119*b1cdbd2cSJim Jagielski
120