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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: filepath.c,v $
* $Revision: 1.8 $
*
* 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.
*
************************************************************************/
#include <osl/file.h>
#include <rtl/ustring.h>
static sal_uInt32 SAL_CALL 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 )
{
oslFileError error = osl_File_E_None;
rtl_uString *ustrPath = NULL;
rtl_uString *ustrFile = NULL;
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 );
}
}
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 to large */
uPathWidth += uFileWidth;
while ( uPathWidth > uMaxWidth )
{
(*pustrCompacted)->length--;
(*pustrCompacted)->buffer[(*pustrCompacted)->length] = 0;
uPathWidth = pfnCalcWidth( *pustrCompacted );
}
if ( ustrPath )
rtl_uString_release( ustrPath );
if ( ustrFile )
rtl_uString_release( ustrFile );
return error;
}
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