Flex3+ArcGIS+API实现Button控件文字竖向排列

以下代码来自网络，主要实现了在Flex3+ArcGIS+API环境下Button控件上显示的文字竖向排列。在Flex中新建类，复制下面的代码，然后在需要使用的地方添加该类的引用，运行后可看到Button上文字竖向排列。

package controls { ??? import flash.filters.GlowFilter;? ??? import flash.text.TextFieldAutoSize;? ????? ??? import mx.controls.Button;? ??? import mx.controls.ButtonLabelPlacement;? ??? import mx.core.mx_internal;? ??? import mx.events.FlexEvent;? ??? /** ???? *? @类名:??? VButton ???? *? @作者:??? Angine ???? *? @日期:??? 2010-1-27 ???? *? @版本:??? V1.0 ???? *? @描述: ???? *????? 垂直按钮类实现按钮Label文本垂直显示功能 ???? *????? 功能实现通过获取到Button内部textField引用， ???? *????? 并对textField中的设置作出更改。 ???? *????? 如果你需要调整文字与按钮的位置，需要考虑按钮的 Width,Height,fontSize ???? *????? 及paddingBottom="0" paddingLeft="0" paddingRight="0" paddingTop="0" 等样式 ???? */?? ??? use namespace mx_internal;? ??? public class VButton extends Button ??? { ??? ??? private static const? glowFilter:GlowFilter = new GlowFilter(0x000000,1,2,288,false);? //黑色滤镜? ??? ??? public function VButton() ??? ??? { ??? ??? ??? super(); ??? ??? } ??? ??? ??? ??? override public function initialize():void? ??????? {? ??????????? super.initialize();? ??????????? buttonMode=true;? ??????????? textField.wordWrap=true;? ??????????? this.labelPlacement=ButtonLabelPlacement.TOP;? ??????????? textField.autoSize=TextFieldAutoSize.CENTER;? ??????????? this.setStyle("paddingBottom",0);? ??????????? this.setStyle("paddingLeft",0);? ??????????? this.setStyle("paddingRight",0);? ??????????? this.setStyle("paddingTop",0);? //????????? textField.filters = [glowFilter];//文字描黑边? ??????? }? ? ??????? override protected function updateDisplayList(unscaledWidth:Number,unscaledHeight:Number):void? ??????? {? ??????????? super.updateDisplayList(unscaledWidth,unscaledHeight);? ??????????? textField.y=(height-textField.height)/2;? ??????????? textField.x=(width-textField.width)/2;? ??????? }? ??? }? }