package org.ishafoundation.archives.transcript.components.studio.markup

{

	import mx.collections.ArrayCollection;

	import mx.collections.ICollectionView;

	import mx.controls.treeClasses.ITreeDataDescriptor;

	

	import name.carter.mark.flex.project.mdoc.MNode;

	import name.carter.mark.flex.project.mdoc.MSegment;

	import name.carter.mark.flex.project.mdoc.MSuperNode;



	public class MarkupsTreeDataDescriptor implements ITreeDataDescriptor

	{

		public function MarkupsTreeDataDescriptor()

		{

		}



		public function getChildren(node:Object, model:Object=null):ICollectionView

		{

			var mnode:MNode = node as MNode;

			var result:Array = [];

			for each (var child:MNode in mnode.childNodes) {

				if (child is MSuperNode) {

					result.push(child);

				}

				else if (child is MSegment) {

					for each (var sChild:MNode in child.childNodes) {

						if (sChild is MSuperNode) {

							result.push(sChild);

						}						

					}

				}

			}

			return new ArrayCollection(result);

		}

		

		public function hasChildren(node:Object, model:Object=null):Boolean

		{

			return getChildren(node).length > 0;

		}

		

		public function isBranch(node:Object, model:Object=null):Boolean

		{

			return hasChildren(node);

		}

		

		public function getData(node:Object, model:Object=null):Object

		{

			return node;

		}

		

		public function addChildAt(parent:Object, newChild:Object, index:int, model:Object=null):Boolean

		{

			throw new Error("not yet implemented");

		}

		

		public function removeChildAt(parent:Object, child:Object, index:int, model:Object=null):Boolean

		{

			throw new Error("not yet implemented");

		}

		

	}

}