/* GrandPerspective, Version 2.5.4 
 *   A utility for Mac OS X that graphically shows disk usage. 
 * Copyright (C) 2005-2020, Erwin Bonsma 
 * 
 * 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  02110-1301, USA. 
 */

#import <Cocoa/Cocoa.h>

#import "FileItem.h"


@interface DirectoryItem : FileItem {
}


/* A directory item is initialized without a size. It will be set when its contents are set.
 */
- (instancetype) initWithLabel:(NSString *)label
                        parent:(DirectoryItem *)parent
                         flags:(FileItemOptions)flags
                  creationTime:(CFAbsoluteTime)creationTime
              modificationTime:(CFAbsoluteTime)modificationTime
                    accessTime:(CFAbsoluteTime)accessTime NS_DESIGNATED_INITIALIZER;

- (void) setDirectoryContents:(Item *)contents;

/* Replaces the directory contents. The item must have the same size as the original item (otherwise
 * the resulting tree would be incorrect).
 *
 * Note: It is the responsibility of the sender to ensure that this method is only called when the
 * tree can be modified (e.g. it should not be traversed in another thread). Furthermore, the sender
 * is responsible for notifying objects affected by the change.
 */
- (void) replaceDirectoryContents:(Item *)contents;

@property (nonatomic, readonly, strong) Item *contents;

/* Returns the item that represents the receiver when package contents should not be shown (i.e.
 * when the directory should be represented by a file).
 */
@property (nonatomic, readonly, strong) FileItem *itemWhenHidingPackageContents;

@end
