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/* Functions.m
*
* Copyright (C) 2004-2010 Free Software Foundation, Inc.
*
* Author: Enrico Sersale <enrico@imago.ro>
* Date: March 2004
*
* This file is part of the GNUstep GWorkspace application
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 31 Milk Street #960789 Boston, MA 02196 USA.
*/
#include <limits.h>
#import <AppKit/AppKit.h>
#import <GNUstepBase/GNUstep.h>
#import "Functions.h"
static NSString *fix_path(NSString *s, const char *c)
{
static NSFileManager *mgr = nil;
const char *ptr = c;
unsigned len;
if (mgr == nil) {
mgr = [NSFileManager defaultManager];
RETAIN (mgr);
}
if (ptr == 0) {
if (s == nil) {
return nil;
}
ptr = [s cString];
}
len = strlen(ptr);
return [mgr stringWithFileSystemRepresentation: ptr length: len];
}
BOOL isSubpath(NSString *p1, NSString *p2)
{
int l1 = [p1 length];
int l2 = [p2 length];
if ((l1 > l2) || ([p1 isEqualToString: p2])) {
return NO;
} else if ([[p2 substringToIndex: l1] isEqualToString: p1]) {
if ([[p2 pathComponents] containsObject: [p1 lastPathComponent]]) {
return YES;
}
}
return NO;
}
NSString *relativePathFittingInField(id field, NSString *fullPath)
{
NSArray *pathcomps;
float cntwidth;
NSFont *font;
NSString *path;
NSString *relpath = nil;
int i;
cntwidth = [field bounds].size.width;
font = [field font];
if ([font widthOfString: fullPath] < cntwidth) {
return fullPath;
}
cntwidth = cntwidth - [font widthOfString: fix_path(@"../", 0)];
pathcomps = [fullPath pathComponents];
i = [pathcomps count] - 1;
path = [NSString stringWithString: [pathcomps objectAtIndex: i]];
while (i > 0) {
i--;
if ([font widthOfString: path] < cntwidth) {
relpath = [NSString stringWithString: path];
} else {
break;
}
path = [NSString stringWithFormat: @"%@%@%@", [pathcomps objectAtIndex: i], fix_path(@"/", 0), path];
}
relpath = [NSString stringWithFormat: @"%@%@", fix_path(@"../", 0), relpath];
return relpath;
}
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