NSOutlineView+ExpandAllItems.m

//
//  NSOutlineView+ExpandAllItems.m
//  AngelTemplate
//
//  Created by Uli Kusterer on 21.10.06.
//  Copyright 2006 M. Uli Kusterer.
//
//	This software is provided 'as-is', without any express or implied
//	warranty. In no event will the authors be held liable for any damages
//	arising from the use of this software.
//
//	Permission is granted to anyone to use this software for any purpose,
//	including commercial applications, and to alter it and redistribute it
//	freely, subject to the following restrictions:
//
//	   1. The origin of this software must not be misrepresented; you must not
//	   claim that you wrote the original software. If you use this software
//	   in a product, an acknowledgment in the product documentation would be
//	   appreciated but is not required.
//
//	   2. Altered source versions must be plainly marked as such, and must not be
//	   misrepresented as being the original software.
//
//	   3. This notice may not be removed or altered from any source
//	   distribution.
//

// -----------------------------------------------------------------------------
//	Headers:
// -----------------------------------------------------------------------------

#import "NSOutlineView+ExpandAllItems.h"


@implementation NSOutlineView (UKExpandAllItems)

// -----------------------------------------------------------------------------
//	expandAllItems:
// -----------------------------------------------------------------------------

-(void)	expandAllItems
{
	NSObject<NSOutlineViewDataSource>*	dataSource = [self dataSource];
	int			topItemCount = [dataSource outlineView: self numberOfChildrenOfItem: nil];
	int			x = 0;
	
	for( x = 0; x < topItemCount; x++ )
	{
		id	theItem = [dataSource outlineView: self child: x ofItem: nil];
		if( [self isExpandable: theItem] )
			[self expandItem: theItem expandChildren: YES];
	}
}

@end