/* Functions.m
 *  
 * Copyright (C) 2003 Free Software Foundation, Inc.
 *
 * Author: Enrico Sersale <enrico@imago.ro>
 * Date: October 2003
 *
 * This file is part of the GNUstep ClipBook 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
 */

#include <Foundation/Foundation.h>
#include <AppKit/AppKit.h>
#include "Functions.h"
#include <limits.h>

#define ONE_KB 1024
#define ONE_MB (ONE_KB * ONE_KB)
#define ONE_GB (ONE_KB * ONE_MB)

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]; 
}

NSString *fixPath(NSString *s, const char *c)
{
  return fix_path(s, c);
}

NSString *fileSizeDescription(unsigned long size)
{
	NSString *sizeStr;
	char *sign = "";
    
	if(size == 1) {
		sizeStr = @"1 byte";
	} else if(size < 0) {
		sign = "-";
		size = -size;
	}
	if(size == 0) {
		sizeStr = @"0 bytes";
	} else if(size < (10 * ONE_KB)) {
		sizeStr = [NSString stringWithFormat:@"%s %d bytes", sign, (long)size];
	} else if(size < (100 * ONE_KB)) {
 		sizeStr = [NSString stringWithFormat:@"%s %3.2fKB", sign,
                          					((double)size / (double)(ONE_KB))];
	} else if(size < (100 * ONE_MB)) {
		sizeStr = [NSString stringWithFormat:@"%s %3.2fMB", sign,
                          					((double)size / (double)(ONE_MB))];
	} else {
 		sizeStr = [NSString stringWithFormat:@"%s %3.2fGB", sign,
                          					((double)size / (double)(ONE_GB))];
	}

	return sizeStr;
}

NSMenuItem *addItemToMenu(NSMenu *menu, NSString *str, 
																NSString *comm, NSString *sel, NSString *key)
{
	NSMenuItem *item = [menu addItemWithTitle: NSLocalizedString(str, comm)
												action: NSSelectorFromString(sel) keyEquivalent: key]; 
	return item;
}
