| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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; |
| } |
| |
| |