Flex中转化以及格式化颜色值的例子
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
??????? layout="vertical"
??????? verticalAlign="middle"
??????? backgroundColor="white">
??? <mx:Script>
??????? <![CDATA[
??????????? private function fixedInt(value:int, mask:String):String {
??????????????? return String(mask + value.toString(16)).substr(-mask.length).toUpperCase();
??????????? }
??????????? private function rChannel(value:int):int {
??????????????? return value >> 16 & 0xFF;
??????????? }
??????????? private function gChannel(value:int):int {
??????????????? return value >> 8 & 0xFF;
??????????? }
??????????? private function bChannel(value:int):int {
??????????????? return value >> 0 & 0xFF;
??????????? }
??????????? private function rgbToInt(r:int, g:int, b:int):int {
??????????????? return r << 16 | g << 8 | b << 0;
??????????? }
??????? ]]>
??? </mx:Script>
??? <mx:Model id="colorObj">
??????? <root>
??????????? <color>{colorPicker.selectedColor}</color>
??????????? <red>{rChannel(colorObj.color)}</red>
??????????? <green>{gChannel(colorObj.color)}</green>
??????????? <blue>{bChannel(colorObj.color)}</blue>
??????? </root>
??? </mx:Model>
??? <mx:Form>
??????? <mx:FormItem label="Color:" direction="horizontal">
??????????? <mx:ColorPicker id="colorPicker" />
??????????? <mx:Label text="0x{fixedInt(colorPicker.selectedColor, '000000')}" width="100" />
??????? </mx:FormItem>
??????? <mx:FormItem label="Red:" direction="horizontal">
??????????? <mx:Label text="{colorObj.red}" />
??????????? <mx:Label text="(0x{fixedInt(colorObj.red, '00')})" />
??????? </mx:FormItem>
??????? <mx:FormItem label="Green:" direction="horizontal">
??????????? <mx:Label text="{colorObj.green}" />
??????????? <mx:Label text="(0x{fixedInt(colorObj.green, '00')})" />
??????? </mx:FormItem>
??????? <mx:FormItem label="Blue:" direction="horizontal">
??????????? <mx:Label text="{colorObj.blue}" />
??????????? <mx:Label text="(0x{fixedInt(colorObj.blue, '00')})" />
??????? </mx:FormItem>
??????? <mx:FormItem label="Color:" direction="horizontal">
??????????? <mx:Label text="{colorObj.color}" />
??????????? <mx:Label text="(0x{fixedInt(rgbToInt(colorObj.red, colorObj.green, colorObj.blue), '000000')})" />
??????? </mx:FormItem>
??? </mx:Form>
??? <mx:Label text="{int(0xFF00FF)}" />
</mx:Application>
