File: PGTableViewDataSource.m

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/*
 *  PGTableViewDataSource.h
 *  graphviz
 *
 *  Created by Glen Low on Sat Dec 13 2003.
 *  Copyright (c) 2003, Pixelglow Software. All rights reserved.
 *  http://www.pixelglow.com/graphviz/
 *  graphviz@pixelglow.com
 *
 *  Redistribution and use in source and binary forms, with or without modification, are permitted
 *  provided that the following conditions are met:
 *  * Redistributions of source code must retain the above copyright notice, this list of conditions
 *    and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice, this list of conditions
 *    and the following disclaimer in the documentation and/or other materials provided with the distribution.
 *  * Neither the name of Pixelglow Software nor the names of its contributors may be used to endorse or
 *    promote products derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 *  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


#import "PGTableViewDataSource.h"

@implementation PGTableViewDataSource

- (id) initWithDataSource: (NSArray*) source
	{
		if ((self = [super init]))
			source_ = [source retain];
		
		return self;
	}

- (NSArray*) source
	{
		return source_;
	}
	
- (void) setSource: (NSArray*) source
	{
		if (source_ != source)
			{
				[source_ release];
				source_ = [source retain];
			}
	}

- (int) numberOfRowsInTableView: (NSTableView*) tableView
	{
		return source_ ? [source_ count] : 0;
	}
	
- (id) tableView: (NSTableView*) aTableView objectValueForTableColumn: (NSTableColumn*) tableColumn row: (int) rowIndex
	{
		return [[source_ objectAtIndex: rowIndex] valueForKey: [tableColumn identifier]];
	}
	
- (void) tableView: (NSTableView*) tableView setObjectValue: (id) object forTableColumn: (NSTableColumn*) tableColumn row: (int) rowIndex
	{
		[[source_ objectAtIndex: rowIndex] takeValue: object forKey: [tableColumn identifier]];
	}

- (id) tableView: (NSTableView*) tableView performSelector: (SEL) selector forRow: (int) rowIndex;
	{
		id row = [source_ objectAtIndex: rowIndex];
		return [row respondsToSelector: selector] ? [row performSelector: selector] : nil;
	}
	
- (void) dealloc
	{
		[source_ release];
	}
	
@end