/*
 * Copyright 2007 (c) Tim Knip, ascollada.org.
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
 
package org.ascollada.core {
	import org.ascollada.ASCollada;
	import org.ascollada.core.DaeEntity;	

	/**
	 * 
	 */
	public class DaeAccessor extends DaeEntity
	{
		/** count - required */
		public var count:uint;
		
		/** source - required */
		public var source:String;
		
		/** offset - optional - default 0 */
		public var offset:uint;
		
		/** stride - optional - default 1 */
		public var stride:uint;
		
		/** params - optional - 0 or more */
		public var params:Object;
				
		/**
		 * 
		 * @param	node
		 * @return
		 */
		public function DaeAccessor( document : DaeDocument, node:XML = null ):void
		{
			super( document, node );
		}	
		
		/**
		 * 
		 * @param	node
		 * @return
		 */
		override public function read( node:XML ):void
		{			
			if( node.localName() != ASCollada.DAE_ACCESSOR_ELEMENT )
				throw new Error( "expected a " + ASCollada.DAE_ACCESSOR_ELEMENT + " element" );
				
			super.read( node );
			
			this.count = getAttributeAsInt(node, ASCollada.DAE_COUNT_ATTRIBUTE);
			this.offset = getAttributeAsInt(node, ASCollada.DAE_OFFSET_ATTRIBUTE);
			this.source = getAttribute(node, ASCollada.DAE_SOURCE_ATTRIBUTE);
			this.stride = getAttributeAsInt(node, ASCollada.DAE_STRIDE_ATTRIBUTE, 1);
						
			var paramList:XMLList = getNodeList(node, ASCollada.DAE_PARAMETER);
		
			this.params = new Object();
			
			// params
			for( var i:int = 0; i < paramList.length(); i++ )
			{
				var param:XML = paramList[i];
				var name:String = getAttribute(param, ASCollada.DAE_NAME_ATTRIBUTE);
				var type:String = getAttribute(param, ASCollada.DAE_TYPE_ATTRIBUTE);
				this.params[ name ] = type;
			}
		}
	}	
}
