<?xml version="1.0" encoding="utf-8"?>
<!--
    Copyright 2010 Chet Haase
    
    Licensed 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:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:s="library://ns.adobe.com/flex/spark"
    xmlns:mx="library://ns.adobe.com/flex/mx"
    viewSourceURL="srcview/index.html"
    width="500" height="322">
    
    <fx:Script>
        import spark.effects.WipeDirection;
        
        [Embed("shaders/FadeThroughBlack.pbj", mimeType="application/octet-stream")]
        [Bindable]private static var FadeThroughBlackShaderClass:Class;

        [Embed("images/GoldenGate.jpg")]
        [Bindable]private var GoldenGate:Class;
        
        [Embed("images/Harbor.jpg")]
        [Bindable]private var Harbor:Class;
        
        private function changeHandler(event:Event):void
        {
            switch (event.target)
            {
                case crossBtn:
                    transition.effect = crossfader;
                    break;
                case wipeLBtn:
                    transition.effect = wiper;
                    wiper.direction = WipeDirection.LEFT;
                    break;
                case wipeRBtn:
                    transition.effect = wiper;
                    wiper.direction = WipeDirection.RIGHT;
                    break;
                case wipeDBtn:
                    transition.effect = wiper;
                    wiper.direction = WipeDirection.DOWN;
                    break;
                case wipeUBtn:
                    transition.effect = wiper;
                    wiper.direction = WipeDirection.UP;
                    break;
                case blackBtn:
                    transition.effect = blackDip;
                    break;
            }
        }
    </fx:Script>
    <s:states>
        <s:State name="state1"/>
        <s:State name="state2"/>
    </s:states>
    <fx:Declarations>
        <s:CrossFade id="crossfader" targets="{[img,button]}"/>
        <s:Wipe id="wiper" targets="{[img,button]}"/>
        <s:AnimateTransitionShader id="blackDip" targets="{[img,button]}"
            shaderByteCode="{FadeThroughBlackShaderClass}"/>
    </fx:Declarations>
    <s:transitions>
        <s:Transition id="transition" effect="{crossfader}"/>
    </s:transitions>
    <s:VGroup>        
        <s:HGroup>
            <s:RadioButton id="crossBtn" label="Crossfade" selected="true"
                groupName="EffectType" change="changeHandler(event)"/>
            <s:RadioButton id="wipeLBtn" label="Left"
                groupName="EffectType" change="changeHandler(event)"/>
            <s:RadioButton id="wipeRBtn" label="Right"
                groupName="EffectType" change="changeHandler(event)"/>
            <s:RadioButton id="wipeDBtn" label="Down"
                groupName="EffectType" change="changeHandler(event)"/>
            <s:RadioButton id="wipeUBtn" label="Up"
                groupName="EffectType" change="changeHandler(event)"/>
            <s:RadioButton id="blackBtn" label="Black"
                groupName="EffectType" change="changeHandler(event)"/>
            <s:Button id="button" label="To Harbor" width="90" label.state2="To Bridge"
                click="currentState = (currentState == 'state1') ? 'state2':'state1'"/>
        </s:HGroup>
        <mx:Image id="img" source="{GoldenGate}" source.state2="{Harbor}"
            click="currentState = (currentState == 'state1') ? 'state2':'state1'"/>
    </s:VGroup>
</s:Application>