Flex TimerInput 输入组件

package com
{
	
	import flash.events.Event;
    import flash.events.FocusEvent;
    import flash.text.TextLineMetrics;
    
    import mx.containers.HBox;
    import mx.controls.NumericStepper;
    import mx.controls.Text;
    import mx.controls.TextInput;
    import mx.core.UITextField;
    import mx.core.mx_internal;
    import mx.events.FlexEvent;
    import mx.managers.IFocusManager;
    
    use namespace mx_internal;
    
    /**
     * Dispatched when the time changes, which could be either the hour, minute.
     */    
    [Event(name="change",type="flash.events.Event")]
    
    /**
     * Dispatched when the hour changes.
     */    
    [Event(name="hoursChange",type="flash.events.Event")]
    
    /**
     * Dispatched when the minutes change.
     */    
    [Event(name="minutesChange",type="flash.events.Event")]
    
    /**
     * Dispatched when the seconds change.
     */    
    [Event(name="secondsChange",type="flash.events.Event")]

    public class TimeInputEx extends NumericStepper
    {
    	
    	
    	/**
    	 * 时间转换字符串 
    	 */
        public static function formatNumberWithChar(value:Number,length:int=2,pref:String="0"):String
        {
            var str:String = new String(value);
            var len:int = str.length;
            
            if(len > length)
            {
            	return str.substr(0,length);
            }
            else
            {
                var n:int = length - len;
                for( var i:int = 0 ; i < n ; i++ ) 
                {
                    str = pref + str;
                }
                return str;
            }
        }
		
		/**
		 * Construction 
		 */
        public function TimeInputEx()
        {
            super();
            this.maxChars = 2;
            this.minimum = 0;
            this.maximum = 23;
            this.stepSize = 1;
            this.addEventListener(FlexEvent.VALUE_COMMIT,valueCommandHandler);
        }
        //--------------------------------------------------------------------------
        //
        //  Variables
        //
        //--------------------------------------------------------------------------
        
        /**
         *  @private
         */
        protected  var inputBox:HBox;
        
        /**
         *  @private
         */
        protected  var sText:Text;
        protected  var sText2:Text;
                
        /**
         *  @private
         */
        protected  var hoursInputField:TextInput;
        
        /**
         *  @private
         */
        protected  var minutesInputField:TextInput;
    
        /**
         *  @private
         */
        protected  var secondsInputField:TextInput;
    
        /**
         *  @private
         */
        protected var _hours:Number = 0;
        /**
         *  @private
         */
        protected var _minutes:Number = 0;
        /**
         *  @private
         */
        protected var _seconds:Number = 0;
        /**
         *  @private
         */
        protected var _time:Date;
        /**
         *  @private
         */
        protected var _text:String;
         /**
         *  @private
         */
        private var _enabled:Boolean=true;
        
        
        /**
         * @override creationChildren 
         */
        override protected function createChildren():void
        {
            super.createChildren();
            
            if(!inputBox)
            {
                inputBox = new HBox();
                inputBox.setStyle("paddingLeft",0);
                inputBox.setStyle("paddingRight",0);
                inputBox.setStyle("paddingTop",0);
                inputBox.setStyle("paddingBottom",0);
                inputBox.setStyle("horizontalGap",0);
                inputBox.setStyle("borderStyle","solid");
                inputBox.setStyle("verticalAlign","middle");
                addChild(inputBox);
            }
            
            var v:String = "00";
            var lineMetrics:TextLineMetrics = this.measureText(v);
            var textWidth:Number = lineMetrics.width + UITextField.TEXT_WIDTH_PADDING;
			var textHeight:Number = lineMetrics.height + UITextField.TEXT_HEIGHT_PADDING;
            
            
            if (!hoursInputField)
            {
                hoursInputField = new TextInput();                
                hoursInputField.focusEnabled = false;
                hoursInputField.styleName = this;
                // restrict to numbers - dashes - commas - decimals
                hoursInputField.restrict = "0-9";
                hoursInputField.maxChars = 2;
                hoursInputField.text = formatNumberWithChar(_hours,2,"0");
                hoursInputField.width = textWidth;
                hoursInputField.height = textHeight;
                //hoursInputField.parentDrawsFocus = true;
                hoursInputField.setStyle("textAlign","right");
                hoursInputField.setStyle("borderStyle","none");                
                hoursInputField.setStyle("paddingLeft",0);
                hoursInputField.setStyle("paddingRight",0);
                hoursInputField.setStyle("paddingTop",0);
                hoursInputField.setStyle("paddingBottom",0);
                hoursInputField.setStyle("horizontalGap",0);
                
                
                hoursInputField.addEventListener(FocusEvent.FOCUS_IN,inputField_focusInHandler);
                hoursInputField.addEventListener(FocusEvent.FOCUS_OUT, inputField_focusOutHandler);
                
                inputBox.addChild(hoursInputField);
            }
            inputField=hoursInputField;
            if(!sText){
                sText=new Text();
                sText.text=":";
                sText.setStyle("textAlign","center");
                sText.setStyle("paddingLeft",0);
                sText.setStyle("paddingRight",0);
                sText.setStyle("paddingTop",0);
                sText.setStyle("paddingBottom",0);
                sText.setStyle("horizontalGap",0);
                inputBox.addChild(sText);
            }
            if (!minutesInputField)
            {
                minutesInputField = new TextInput();            
                minutesInputField.focusEnabled = false;    
                minutesInputField.styleName = this;
//                minutesInputField.width=textWidth;
    
                // restrict to numbers - dashes - commas - decimals
                minutesInputField.restrict = "0-9";
    
                minutesInputField.maxChars = 2;
                minutesInputField.text = formatNumberWithChar(_minutes,2,"0");
                minutesInputField.width = textWidth;
                minutesInputField.height = textHeight;
                //minutesInputField.parentDrawsFocus = true;
                
                minutesInputField.setStyle("textAlign","left");
                minutesInputField.setStyle("borderStyle","none");        
                minutesInputField.setStyle("paddingLeft",0);
                minutesInputField.setStyle("paddingRight",0);
                minutesInputField.setStyle("paddingTop",0);
                minutesInputField.setStyle("paddingBottom",0);
                minutesInputField.setStyle("horizontalGap",0);
                minutesInputField.addEventListener(FocusEvent.FOCUS_IN,inputField_focusInHandler);
                minutesInputField.addEventListener(FocusEvent.FOCUS_OUT, inputField_focusOutHandler);
                
                inputBox.addChild(minutesInputField);
            }
            if(!sText2){
                sText2=new Text();
                sText2.text=":";
                sText2.setStyle("textAlign","center");
                sText2.setStyle("paddingLeft",0);
                sText2.setStyle("paddingRight",0);
                sText2.setStyle("paddingTop",0);
                sText2.setStyle("paddingBottom",0);
                sText2.setStyle("horizontalGap",0);
                inputBox.addChild(sText2);
            }
            if (!secondsInputField)
            {
                secondsInputField = new TextInput();            
                secondsInputField.focusEnabled = false;    
                secondsInputField.styleName = this;
//                secondsInputField.width=textWidth;
    
                // restrict to numbers - dashes - commas - decimals
                secondsInputField.restrict = "0-9";
    
                secondsInputField.maxChars = 2;
                secondsInputField.text = formatNumberWithChar(_seconds,2,"0");
                secondsInputField.width = textWidth;
                secondsInputField.height = textHeight;
                //secondsInputField.parentDrawsFocus = true;
                
                secondsInputField.setStyle("textAlign","left");
                secondsInputField.setStyle("borderStyle","none");        
                secondsInputField.setStyle("paddingLeft",0);
                secondsInputField.setStyle("paddingRight",0);
                secondsInputField.setStyle("paddingTop",0);
                secondsInputField.setStyle("paddingBottom",0);
                secondsInputField.setStyle("horizontalGap",0);
                secondsInputField.addEventListener(FocusEvent.FOCUS_IN,inputField_focusInHandler);
                secondsInputField.addEventListener(FocusEvent.FOCUS_OUT, inputField_focusOutHandler);
                
                inputBox.addChild(secondsInputField);
            }
        }
        
         /**
         *  @private
         *  Return the preferred sizes of the stepper.
         */
        override protected function measure():void
        {
            super.measure();
            var inputBoxHeight:Number = inputBox.getExplicitOrMeasuredHeight();
            var buttonHeight:Number = prevButton.getExplicitOrMeasuredHeight() +
                                      nextButton.getExplicitOrMeasuredHeight();
    
            var h:Number = Math.max(inputBoxHeight, buttonHeight);
            h = Math.max(DEFAULT_MEASURED_MIN_HEIGHT, h);
    
            var inputBoxWidth:Number = inputBox.getExplicitOrMeasuredWidth();
            var buttonWidth:Number = Math.max(prevButton.getExplicitOrMeasuredWidth(),
                                              nextButton.getExplicitOrMeasuredWidth());
    
            var w:Number = inputBoxWidth + buttonWidth;
            w = Math.max(DEFAULT_MEASURED_MIN_WIDTH, w);
    
            measuredMinWidth = DEFAULT_MEASURED_MIN_WIDTH;
            measuredMinHeight = DEFAULT_MEASURED_MIN_HEIGHT;
    
            measuredWidth = w;
            measuredHeight = h;
        }
        /**
         *  @private
         *  Place the buttons to the right of the text field.
         */
        override protected function updateDisplayList(unscaledWidth:Number,
                                                      unscaledHeight:Number):void
        {
            super.updateDisplayList(unscaledWidth, unscaledHeight);
            
            var w:Number = nextButton.getExplicitOrMeasuredWidth();
            var h:Number = Math.round(unscaledHeight / 2);
            var h2:Number = unscaledHeight - h;
    
            nextButton.x = unscaledWidth - w;
            nextButton.y = 0;
            nextButton.setActualSize(w, h2);
           
            prevButton.x = unscaledWidth - w;
            prevButton.y = unscaledHeight - h;
            prevButton.setActualSize(w, h);
            var inputBoxHeight:Number = inputBox.getExplicitOrMeasuredHeight();
            var inputBoxWidth:Number = inputBox.getExplicitOrMeasuredWidth();
            
			inputBox.setActualSize(unscaledWidth - w, unscaledHeight);
			
			trace(unscaledWidth - w + "    " + unscaledHeight);
//          inputBox.setActualSize(inputBoxWidth,inputBoxHeight);    
        }
       
         /**
         *  @private
         */
        private function inputField_focusInHandler(event:FocusEvent):void
        {
            if (this.listData) {
                this.Caption = this.listData.label;
            }
            inputField=event.currentTarget as TextInput;
            if(event.currentTarget as TextInput == hoursInputField){
                this.value=parseInt(inputField.text);
                this.minimum=0;
                this.maximum=23;
            }else{
                this.value=parseInt(inputField.text);
                this.minimum=0;
                this.maximum=59;
            }
            
            focusInHandler(event);
            
            // Send out a new FocusEvent because the TextInput eats the event
            // Make sure that it does not bubble.
            dispatchEvent(new FocusEvent(event.type, false, false,
                                         event.relatedObject,
                                         event.shiftKey, event.keyCode));
        }
    
        /**
         *  @private
         */
        private function inputField_focusOutHandler(event:FocusEvent):void
        {
            if (this.listData) {
                this.listData.label = this.Caption;
            }
            focusOutHandler(event);
            
            // Send out a new FocusEvent because the TextInput eats the event
            // Make sure that it does not bubble
            dispatchEvent(new FocusEvent(event.type, false, false,
                                         event.relatedObject,
                                         event.shiftKey,event.keyCode));
        }
        
        /**
         * @private
         * 
         * do for format number to string
         */
        private function valueCommandHandler(event:FlexEvent):void{
            //var v=this.value;
            inputField.text=formatNumberWithChar(value,2,"0");
            if(inputField==hoursInputField){
                this.hours=value;
            }
            else if(inputField==minutesInputField){
                this.minutes=value;
            }
            else if(inputField==secondsInputField){
                this.seconds=value;
            }
            this.Caption=formatNumberWithChar(this.hours,2,"0")
                +":"+formatNumberWithChar(this.minutes,2,"0")
                +":"+formatNumberWithChar(this.seconds,2,"0");
            
        }
        
         /**
         *  @private
         *  Remove the focus from the text field.
         */
        override protected function focusInHandler(event:FocusEvent):void
        {
            super.focusInHandler(event);
    
            var fm:IFocusManager = focusManager;
            if (fm)
                fm.defaultButtonEnabled = false;
        }
        [Bindable]
        /**
         * The hours (an integer from 0 to 23) of the day.  
         * 
         * @default 0
         */        
        public function get hours():Number
        {
            return _hours;
        }
        
        [Inspectable(defaultValue=0,category="Time",name="Hours")]
        public function set hours(val:Number):void
        {
            if (val >= 0 || val <= 24)
            {
                this._hours = val;
                if(inputField){
                    if(inputField==hoursInputField && val!=value)
                        value=val;
                    else{
                        hoursInputField.text=formatNumberWithChar(val,2,"0");
                    }
                }
            }        
            
            dispatchEvent(new Event("hoursChange"));
            dispatchEvent(new Event("change"));
        }
        
        [Bindable]
        /**
         * The minutes (an integer from 0 to 59) passed in the hours.
         * 
         * @default 30
         */        
        public function get minutes():Number
        {
            return _minutes;
        }
        
        [Inspectable(defaultValue=30,category="Time",name="Minutes")]
        public function set minutes(val:Number):void
        {
            if (val >= 0 || val <= 59)
            {
                this._minutes = val;
                if(inputField){
                    if(inputField==minutesInputField && val!=value)
                        value=val;
                    else{
                        minutesInputField.text=formatNumberWithChar(val,2,"0");
                    }
                }
            }
            
            dispatchEvent(new Event("minutesChange"));
            dispatchEvent(new Event("change"));
        }
        
        [Bindable]
        /**
         * The seconds (an integer from 0 to 59) passed in the hours.
         * 
         * @default 30
         */        
        public function get seconds():Number
        {
            return _seconds;
        }
        
        [Inspectable(defaultValue=30,category="Time",name="Seconds")]
        public function set seconds(val:Number):void
        {
            if (val >= 0 || val <= 59)
            {
                this._seconds = val;
                if(inputField){
                    if(inputField==secondsInputField && val!=value)
                        value=val;
                    else{
                        secondsInputField.text=formatNumberWithChar(val,2,"0");
                    }
                }
            }
            
            dispatchEvent(new Event("secondsChange"));
            dispatchEvent(new Event("change"));
        }
        
        public function get Time():Date{
            var d:Date=new Date();
            d.hours=_hours;
            d.minutes=_minutes;
            d.seconds=_seconds;
            return d;
        }
        public function set Time(time:Date):void{
            this._time=time;
            this.hours=time.hours;
            this.minutes=time.minutes;
            this.seconds=time.seconds;
        }
        
        [Bindable]
        public function get Caption():String{
            return _text;
        }
        [Inspectable(defaultValue="00:00:00",category="Caption",name="Caption")]
        public function set Caption(timestr:String):void{
            this._text=timestr;
            this.hours=Number(timestr.substring(0,2));
            this.minutes=Number(timestr.substring(3,5));
            this.seconds=Number(timestr.substring(6,8));
        }
        
         /**
         *  @private
         */
        override public function set enabled(value:Boolean):void
        {
            _enabled = value;
            if(hoursInputField){
                hoursInputField.enabled=value;
                   minutesInputField.enabled=value;      
                   secondsInputField.enabled=value;      
                   sText.enabled=value;
                   sText2.enabled=value;
                   nextButton.enabled=value;
                   prevButton.enabled=value;
            }
            
        }
        
    
        /**
         *  @private
         */
      
        override public function get enabled():Boolean
        {
            return _enabled;
        }
        
    }
}

<?xml version="1.0" encoding="utf-8"?>
<mx:Application creationComplete="init();" xmlns:mx="http://www.adobe.com/2006/mxml" fontSize="12" layout="horizontal" xmlns:ns1="*" xmlns:com="com.*">

<mx:Script>
    <![CDATA[

        private function init():void{
            ac.addItem({starttime:"00:00:00", endtime:"01:00:00", program:""});
            ac.addItem({starttime:"01:00:00", endtime:"02:00:00", program:""});
        }

    ]]>

</mx:Script>

 
    <mx:DateFormatter id="timeFormatter" formatString="J:NN:SS A" />
    
    <mx:ArrayCollection id="ac"/>
    <mx:Panel layout="absolute" paddingLeft="5" paddingRight="5" paddingTop="5" paddingBottom="5" title="TimeInput" width="100%" height="224">
        <com:TimeInputEx id="timerinput" hours="23" minutes="45" width="250" seconds="30" Caption="03:45:30" top="10"/>
        <mx:DataGrid textAlign="center" id="dg" dataProvider="{ac}" sortableColumns="false" fontSize="14" editable="true" alternatingItemColors="[#ffffff, #d1d1d1]" headerColors="[#ffffff, #d1d1d1]" alpha="0.6"  left="10" right="10" top="51" bottom="29">
            <mx:columns>
                     <mx:DataGridColumn headerText="start time" dataField="starttime"  textAlign="center"  editable="true" minWidth="125" itemEditor="com.TimeInputEx" editorDataField="Caption"/>
               <mx:DataGridColumn headerText="end time" dataField="endtime"  textAlign="center" editable="true" minWidth="125" itemEditor="com.TimeInputEx" editorDataField="Caption"/>
            </mx:columns>    
        </mx:DataGrid>
    </mx:Panel>
    
    <mx:Panel layout="vertical" paddingLeft="5" paddingRight="5" paddingTop="5" paddingBottom="5" title="time now">
        <mx:Text text="hours:{timerinput.hours}"/>
        <mx:Text text="minutes:{timerinput.minutes}"/>
        <mx:Text text="seconds:{timerinput.seconds}"/>
        <mx:Text text="caption:{timerinput.Caption}"/>
        <mx:Button label="setTime to 8:10:03" click="timerinput.Caption='08:10:03'" />
        <mx:Button label="switchEnable" click="if(timerinput.enabled) timerinput.enabled=false; else timerinput.enabled=true;"/>
    </mx:Panel>
</mx:Application>

什么都不说了，自己看代码吧，TimerInputEx中只是在原有基础之上增加了label和input