1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <osl/file.h>
#include <rtl/ustring.h>
#include <cassert>
static sal_uInt32 osl_defCalcTextWidth( rtl_uString *ustrText )
{
return ustrText ? ustrText->length : 0;
}
oslFileError SAL_CALL osl_abbreviateSystemPath( rtl_uString *ustrSystemPath, rtl_uString **pustrCompacted, sal_uInt32 uMaxWidth, oslCalcTextWidthFunc pfnCalcWidth )
{
rtl_uString *ustrPath = nullptr;
rtl_uString *ustrFile = nullptr;
sal_uInt32 uPathWidth, uFileWidth;
if ( !pfnCalcWidth )
pfnCalcWidth = osl_defCalcTextWidth;
{
sal_Int32 iLastSlash = rtl_ustr_lastIndexOfChar_WithLength( ustrSystemPath->buffer, ustrSystemPath->length, SAL_PATHDELIMITER );
if ( iLastSlash >= 0 )
{
rtl_uString_newFromStr_WithLength( &ustrPath, ustrSystemPath->buffer, iLastSlash );
rtl_uString_newFromStr_WithLength( &ustrFile, &ustrSystemPath->buffer[iLastSlash], ustrSystemPath->length - iLastSlash );
}
else
{
rtl_uString_new( &ustrPath );
rtl_uString_newFromString( &ustrFile, ustrSystemPath );
}
}
assert(ustrPath && ustrFile);
uPathWidth = pfnCalcWidth( ustrPath );
uFileWidth = pfnCalcWidth( ustrFile );
/* First abbreviate the directory component of the path */
while ( uPathWidth + uFileWidth > uMaxWidth )
{
if ( ustrPath->length > 3 )
{
ustrPath->length--;
ustrPath->buffer[ustrPath->length-3] = '.';
ustrPath->buffer[ustrPath->length-2] = '.';
ustrPath->buffer[ustrPath->length-1] = '.';
ustrPath->buffer[ustrPath->length] = 0;
uPathWidth = pfnCalcWidth( ustrPath );
}
else
break;
}
/* Now abbreviate file component */
while ( uPathWidth + uFileWidth > uMaxWidth )
{
if ( ustrFile->length > 4 )
{
ustrFile->length--;
ustrFile->buffer[ustrFile->length-3] = '.';
ustrFile->buffer[ustrFile->length-2] = '.';
ustrFile->buffer[ustrFile->length-1] = '.';
ustrFile->buffer[ustrFile->length] = 0;
uFileWidth = pfnCalcWidth( ustrFile );
}
else
break;
}
rtl_uString_newConcat( pustrCompacted, ustrPath, ustrFile );
/* Event now if path was compacted to ".../..." it can be too large */
uPathWidth += uFileWidth;
while ( uPathWidth > uMaxWidth )
{
(*pustrCompacted)->length--;
(*pustrCompacted)->buffer[(*pustrCompacted)->length] = 0;
uPathWidth = pfnCalcWidth( *pustrCompacted );
}
rtl_uString_release(ustrPath);
rtl_uString_release(ustrFile);
return osl_File_E_None;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
