<?xml version="1.0" encoding="utf-8"?>
<!--

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contributor license agreements.  See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License.  You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

-->
<s:Group xmlns:fx="http://ns.adobe.com/mxml/2009" 
		 xmlns:s="library://ns.adobe.com/flex/spark" 
		 
		 width="{widthComp}"
		 creationComplete="init()">
	
	<fx:Script>
		<![CDATA[
			import mx.events.FlexEvent;
			import mx.events.TouchInteractionEvent;
			
			private var indicatorSize:uint = 18;
			private var _suspendPageIndicatorShortcut:Boolean;
			[Bindable]private var widthComp:Number;
			
			public var direction:String;
			
			public function touchInteractionStart(event:TouchInteractionEvent):void
			{
				_suspendPageIndicatorShortcut = true;
			}
			
			public function positionChanged(event:TouchInteractionEvent):void
			{
				init();
				_suspendPageIndicatorShortcut = false;
			}
			
			protected function init():void
			{
				var pos:Number;
				var viewportSize:Number;
				
				if(direction == "horizontal")
				{
					pos = parentDocument.scroll.viewport.horizontalScrollPosition;
					viewportSize = parentDocument.scroll.viewport.width;
				}
				else
				{
					pos = parentDocument.scroll.viewport.verticalScrollPosition;
					viewportSize = parentDocument.scroll.viewport.height;
				}
				
				var selectedIndex:int = Math.round(pos / viewportSize);
				var numElements:int = parentDocument.group.numElements;
				widthComp = numElements * 18;
				
				
				var g:Graphics = pageIndicator.graphics;
				g.clear();
				
				var axisPos:Number = 0;
				var centerPos:Number = indicatorSize / 2;
				var radius:Number = indicatorSize / 4;
				
				for (var i:uint = 0; i < numElements; i++)
				{
					if (i == selectedIndex)
						g.beginFill(0x000000, .7);
					else
						g.beginFill(0.000000, .3);
					
					g.drawCircle(axisPos + centerPos, centerPos, radius); 
					
					g.endFill();
					
					axisPos += indicatorSize;
				}
			}
			
		]]>
	</fx:Script>
	
	<s:SpriteVisualElement id="pageIndicator"/>
	
</s:Group>