flex4 spark 组件 自定义RadioButton样式

<?xml version="1.0" encoding="utf-8"?>
<!--
    ADOBE SYSTEMS INCORPORATED
    Copyright 2008 Adobe Systems Incorporated
    All Rights Reserved.
    NOTICE: Adobe permits you to use, modify, and distribute this file
    in accordance with the terms of the license agreement accompanying it.
-->
<!--- The default skin class for a Spark RadioButton component. 
       @see spark.components.RadioButton
       @see spark.components.RadioButtonGroup
        
      @langversion 3.0
      @playerversion Flash 10
      @playerversion AIR 1.5
      @productversion Flex 4
-->
<s:SparkSkin xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark"
    xmlns:fb="http://ns.adobe.com/flashbuilder/2009" alpha.disabledStates="0.5" xmlns:mx="library://ns.adobe.com/flex/mx">
    <fx:Metadata>
    <![CDATA[ 
        /** 
         * @copy spark.skins.spark.ApplicationSkin#hostComponent
         */
        [HostComponent("spark.components.RadioButton")]
    ]]>
    </fx:Metadata> 
    
    <fx:Script fb:purpose="styling">
        /* Define the skin elements that should not be colorized. 
           For button, the graphics are colorized but the label is not. */
        static private const exclusions:Array = ["labelDisplay", "dot"];
        /**
         * @private
         */
        override public function get colorizeExclusions():Array {return exclusions;}
        
        /* Define the symbol fill items that should be colored by the "symbolColor" style. */
        static private const symbols:Array = ["dotFill"];
        
        /**
         * @private
         */
        override public function get symbolItems():Array {return symbols};
        
        /**
         * @private
         */
        override protected function initializationComplete():void
        {
            useChromeColor = true;
            super.initializationComplete();
        }
    </fx:Script>
    
    <fx:Script>
        <![CDATA[
        /** 
         * @private 
         */     
        private static const focusExclusions:Array = ["labelDisplay"];
        /**
         *  @private
         */
        override public function get focusSkinExclusions():Array { return focusExclusions;};
        ]]>
    </fx:Script>
    
    <s:states>
        <s:State name="up" />
        <s:State name="over" stateGroups="overStates" />
        <s:State name="down" stateGroups="downStates" />
        <s:State name="disabled" stateGroups="disabledStates" />
        <s:State name="upAndSelected" stateGroups="selectedStates" />
        <s:State name="overAndSelected" stateGroups="overStates, selectedStates" />
        <s:State name="downAndSelected" stateGroups="downStates, selectedStates" />
        <s:State name="disabledAndSelected" stateGroups="disabledStates, selectedStates" />
  <s:State name="noEnable" />
    </s:states>
    
    <s:Group verticalCenter="0" width="13" height="13" visible="true">
        <!-- drop shadow -->
        <s:Ellipse left="-1" top="-1" right="-1" bottom="-1" visible="true">
            <s:stroke>
                <s:LinearGradientStroke rotation="90" weight="1">
                    <s:GradientEntry color="0x000000" 
                                   color.downStates="0xFFFFFF"
                                   alpha="0.011"
                                   alpha.downStates="0" />
                    <s:GradientEntry color="0x000000" 
                                   color.downStates="0xFFFFFF" 
                                   alpha="0.121"
                                   alpha.downStates="0.57" />
                </s:LinearGradientStroke>
            </s:stroke>
        </s:Ellipse>
        
        <!-- fill -->
        <s:Ellipse left="1" top="1" right="1" bottom="1" visible="true">
            <s:fill>
                <s:LinearGradient rotation="90">
                    <s:GradientEntry color="0xFFFFFF" 
                                   color.overStates="0xBBBDBD" 
                                   color.downStates="0xAAAAAA" 
                                   alpha="0.85" />
                    <s:GradientEntry color="0xD8D8D8" 
                                   color.overStates="0x9FA0A1" 
                                   color.downStates="0x929496" 
                                   alpha="0.85" />
                </s:LinearGradient>
            </s:fill>
        </s:Ellipse>
        
        <!-- fill highlight -->
        <s:Path data="M 1 6 Q 2 2 6 1 Q 11 2 12 6 h -9" visible="true">
            <s:fill>
                <s:SolidColor color="0xFFFFFF" alpha="0.33" />
            </s:fill>
        </s:Path>
        
        <!-- layer 6: highlight stroke (all states except down) -->
        <s:Ellipse left="1" right="1" top="1" bottom="1" visible="true">
            <s:stroke>
                <s:LinearGradientStroke rotation="90" weight="1">
                    <s:GradientEntry color="0xFFFFFF" color.downStates="0x939393" alpha.overStates="0.22" />
                    <s:GradientEntry color="0xD8D8D8" color.downStates="0xB1B1B1" alpha.overStates="0.22" />
                </s:LinearGradientStroke>
            </s:stroke>
        </s:Ellipse>
        <s:Rect left="5" top="1" right="5" height="1">
            <s:fill>
                <s:SolidColor color="0xFFFFFF" 
                            color.downStates="0x939393"
                            alpha.overStates="0.22" />
            </s:fill>
        </s:Rect>
        
        <!-- border - put on top of the fill so it doesn't disappear when scale is less than 1 -->
        <s:Ellipse left="0" top="0" right="0" bottom="0">
            <s:stroke>
                <s:LinearGradientStroke rotation="90" weight="1">
                    <s:GradientEntry color="0x000000" alpha="0.70" />
                    <s:GradientEntry color="0x000000" alpha="0.80" />
                </s:LinearGradientStroke>
            </s:stroke>
        </s:Ellipse>
        
        <!-- dot -->
        <!--- Defines the appearance of the RadioButton's dot. To customize the appearance of the dot, create a custom RadioButtonSkin class. -->
        <s:Path left="4" top="4" includeIn="selectedStates" id="dot" itemCreationPolicy="immediate"
                data="M 2.5 0 Q 4.5 0.5 5 2.5 Q 4.5 4.5 2.5 5 Q 0.5 4.5 0 2.5 Q 0.5 0.5 2.5 0">
            <s:fill>
                <!--- @private
                      Defines the appearance of the dot's fill. The default color is 0x000000. The default alpha is .9. -->
                <s:SolidColor id="dotFill" color="0" alpha="0.9" />
            </s:fill>
        </s:Path>
        <s:Path left="4" top="7" includeIn="selectedStates" 
                data="M 0 0 Q 0.5 2 2.5 2.0 Q 3.5 2.0 4 0">
            <s:stroke>
                <s:LinearGradientStroke>
                    <s:GradientEntry color="0xFFFFFF" alpha="0.3" />
                    <s:GradientEntry color="0xFFFFFF" alpha="0.7" />
                    <s:GradientEntry color="0xFFFFFF" alpha="0.3" />
                </s:LinearGradientStroke>
            </s:stroke>
        </s:Path>
  <s:Ellipse left="0" top="0" right="0" bottom="0" includeIn="disabled"><!--改变disabled 状态下  圆圈的样式 也可以用图片来更换 disabled状态 enabled=false-->
   <s:fill>
    <s:SolidColor color="#b4996d" alpha="1" />
   </s:fill>
  </s:Ellipse>
    </s:Group>
    <!-- Label -->
    <!---  @copy spark.components.supportClasses.ButtonBase#labelDisplay -->
    <s:Label id="labelDisplay"
             textAlign="start"
             verticalAlign="middle"
             maxDisplayedLines="1"
             left="18" right="0" top="3" bottom="3" verticalCenter="2" />
</s:SparkSkin>