MobileTrader/src/charts/PortfolioChart.mxml

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

  Licensed to the Apache Software Foundation (ASF) under one or more
  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.

-->
<!-- Christophe Coenraets, http://coenraets.org -->
<s:Group xmlns:fx="http://ns.adobe.com/mxml/2009" 
		 xmlns:s="library://ns.adobe.com/flex/spark" 
		 width="100%" height="100%" clipAndEnableScrolling="true"
		 creationComplete="completeHandler()"
		 resize="redraw()" xmlns:charts="charts.*">

	<fx:Script>
		<![CDATA[
			import spark.effects.Move;
			
			protected var _data:Array;
			
			protected var min:Number;
			[Bindable] protected var max:Number;
			
			public function set data(data:Array):void
			{
				_data = data;
				min = data[0];
				max = data[0];
				for (var i:int=1; i<data.length; i++)
				{
					if (data[i]<min) min = data[i];
					if (data[i]>max) max = data[i];
				}
				redraw();
			}
			
			public function get data():Array
			{
				return _data;
			}

			protected function completeHandler():void
			{
				data = [
					80236, 85639, 82364, 72369, 69523, 85632, 86352, 82562, 87523, 89658, 96853, 106256,
					112045, 100258, 112584, 86352, 86523, 108532, 110253, 120145, 116325, 114856, 110256, 111857,
					112852, 115632, 128632, 121741, 92365, 95638, 132800, 128963, 125698, 112587, 121856, 126874,
					131569, 97563, 98563, 100235, 110523, 119536, 121532, 117563, 125963, 139523, 131856, 138972,
					125639, 103698, 130856, 147523, 110263, 125698, 145962, 138653, 131568, 111258, 125693, 161984
				];

				Multitouch.inputMode = MultitouchInputMode.GESTURE;
				rect.addEventListener(TransformGestureEvent.GESTURE_ZOOM, function(e:TransformGestureEvent):void{zoom(e.scaleX)});
				
			}
			
			protected function zoom(scaleX:Number):void
			{
				var w:Number = path.width * scaleX;
				if (scaleX>1)
					path.width = w > width*5 ? width*5 : w;
				else
				{
					path.width = w < width ? width : w;
					if (path.x + path.width < width) path.x = width - path.width;
				}
			}
			
			protected function redraw():void
			{
				if (!data) return;

				var pathData:String = "M 0 " + height;
				
				var xPos:Number;
				var yPos:Number;
				for (var i:int=0; i<data.length; i++)
				{
					yPos = height - data[i] / max * height;
					xPos = width / 11 * i;
					pathData += " L " + xPos + " " + yPos;
				}
				pathData += "L " + xPos + " " + height + " z";
				path.data = pathData;
			}
			
		]]>
	</fx:Script>
	
	<fx:Declarations>
		<s:CurrencyFormatter id="cf" useCurrencySymbol="true" currencySymbol="$" fractionalDigits="0"/>
		<s:DateTimeFormatter id="df" dateTimePattern="MM/yy"/>
		<charts:AxisArrayList id="hAxisData" step="-12" max="60"/>
	</fx:Declarations>

	<s:Line top="8" left="60" right="0">
		<s:stroke>
			<s:SolidColorStroke weight="1" color="#999999"/>
		</s:stroke>
	</s:Line>
	<s:Line verticalCenter="8" left="60" right="0">
		<s:stroke>
			<s:SolidColorStroke weight="1" color="#999999"/>
		</s:stroke>
	</s:Line>
	<s:Line top="{rect.height/4+8}" left="60" right="0">
		<s:stroke>
			<s:SolidColorStroke weight="1" color="#999999"/>
		</s:stroke>
	</s:Line>
	<s:Line top="{rect.height/4*3+8}" left="60" right="0">
		<s:stroke>
			<s:SolidColorStroke weight="1" color="#999999"/>
		</s:stroke>
	</s:Line>
	
	<s:Label top="0" left="4" text="{cf.format(max)}" fontSize="16"/>
	<s:Label top="{rect.height/4}" left="4" text="{cf.format(max/4*3)}" fontSize="16"/>
	<s:Label top="{rect.height/4*3}" left="4" text="{cf.format(max/4)}" fontSize="16"/>
	<s:Label verticalCenter="8" left="4" text="{cf.format(max/2)}" fontSize="16"/>
	
	<s:Scroller id="scroller" top="8" bottom="0" left="0" right="0">

		<s:Group id="rect" top="0" bottom="0" left="0" right="0"  effectEnd="trace('%%effectEnd '+path.x);" mouseUp="trace('up '+rect.x)">
			
			<s:DataGroup dataProvider="{hAxisData}" top="0" bottom="0" left="0" right="0">
				<s:itemRenderer>
					<fx:Component>
						<s:DataRenderer height="{outerDocument.rect.height}" width="{Math.round(outerDocument.path.width/outerDocument.hAxisData.length)}">
							<s:Label text="{outerDocument.df.format(new Date(new Date().time - 2592000000 * Number(data)))}" right="4" bottom="4" fontSize="16"/>
							<s:Line right="24" top="0" bottom="24">
								<s:stroke>
									<s:SolidColorStroke color="#999999" weight="1"/>
								</s:stroke>
							</s:Line>
						</s:DataRenderer>
					</fx:Component>
				</s:itemRenderer>
				<s:layout>
					<s:HorizontalLayout gap="0"/>
				</s:layout>
			</s:DataGroup>
			
			<s:Path id="path" width="{width*5}" height="100%">
				
				<s:stroke>
					<s:SolidColorStroke color="#00719b" weight="1"/>
				</s:stroke>
				<s:fill>
					<s:LinearGradient rotation="90">
						<s:GradientEntry color="#00BAFF" ratio="0" alpha=".5"/>                
						<s:GradientEntry color="#00719b" ratio="1" alpha=".5"/>
					</s:LinearGradient>
				</s:fill>
				
			</s:Path>
	
		</s:Group>
		
	</s:Scroller>
	
</s:Group>