<?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.

-->
<s:Module xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/mx">
	
	<fx:Script>
		<![CDATA[
			[Bindable]
			public var totalCost:Number = 4.50;
			
			// This event handler adds/removes the cost of condiments to/from the total cost.
			private function modifyBurger(evt:MouseEvent):void {
				// Add 0.25 to the total cost for every condiment. Delete 0.25 for
				// every condiment removed.
				if(CheckBox(evt.target).selected) {
					totalCost += 0.25;
				} else {
					totalCost -= 0.25;
				}
				// Format the totalCost and then display it in a label.
				totalString.text = usdFormatter.format(totalCost);
			}
		]]>
	</fx:Script>
	<fx:Declarations>
		<mx:CurrencyFormatter id="usdFormatter" precision="2" currencySymbol="$"
							  decimalSeparatorFrom="." decimalSeparatorTo="." 
							  useNegativeSign="true"
							  useThousandsSeparator="true" alignSymbol="left"/>
	</fx:Declarations>

	<s:Panel title="CheckBox Sample" width="100%" height="100%">
		
		<s:layout>
			<s:VerticalLayout paddingLeft="10" paddingRight="10" paddingTop="10" paddingBottom="10"/>
		</s:layout>

		<s:Label text="Hamburger Base Price: $4.50" />
		<s:Label text="Select condiments for your hamburger (0.25 each):" />
		
		<s:CheckBox id="lettuceCB" label="Pickles" click="modifyBurger(event)"/>
		<s:CheckBox id="tomatoCB" label="Tomato" click="modifyBurger(event)"/>
		<s:CheckBox id="pickleCB" label="Lettuce" click="modifyBurger(event)"/>
		<s:CheckBox id="mayoCB" label="Mayonnaise" click="modifyBurger(event)"/>
		
		<mx:Spacer height="10" />
		<s:HGroup>
			<s:Label text="Total Price: " color="0x336699" fontWeight="bold"/>
			<s:Label id="totalString" text="$4.50" color="0x336699" fontWeight="bold"/>
		</s:HGroup>
		<s:Label top="10" right="10" width="250" verticalAlign="justify"
				 text="The CheckBox control is a commonly used graphical control that can
contain a check mark or not. You can use CheckBox controls to gather a 
set of true or false values that aren’t mutually exclusive."/>
	</s:Panel>
	
	
</s:Module>