/**

 * Label.as

 * Keith Peters

 * version 0.9.10

 * 

 * A Label component for displaying a single line of text.

 * 

 * Copyright (c) 2011 Keith Peters

 * 

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 * 

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 * 

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

 

package com.bit101.components

{

	import flash.display.DisplayObjectContainer;

	import flash.events.Event;

	import flash.text.TextField;

	import flash.text.TextFieldAutoSize;

	import flash.text.TextFormat;

	

	[Event(name="resize", type="flash.events.Event")]

	public class Label extends Component

	{

		protected var _autoSize:Boolean = true;

		protected var _text:String = "";

		protected var _tf:TextField;

		

		/**

		 * Constructor

		 * @param parent The parent DisplayObjectContainer on which to add this Label.

		 * @param xpos The x position to place this component.

		 * @param ypos The y position to place this component.

		 * @param text The string to use as the initial text in this component.

		 */

		public function Label(parent:DisplayObjectContainer = null, xpos:Number = 0, ypos:Number =  0, text:String = "")

		{

			this.text = text;

			super(parent, xpos, ypos);

		}

		

		/**

		 * Initializes the component.

		 */

		override protected function init():void

		{

			super.init();

			mouseEnabled = false;

			mouseChildren = false;

		}

		

		/**

		 * Creates and adds the child display objects of this component.

		 */

		override protected function addChildren():void

		{

			_height = 18;

			_tf = new TextField();

			_tf.height = _height;

			_tf.embedFonts = Style.embedFonts;

			_tf.selectable = false;

			_tf.mouseEnabled = false;

			_tf.defaultTextFormat = new TextFormat(Style.fontName, Style.fontSize, Style.LABEL_TEXT);

			_tf.text = _text;			

			addChild(_tf);

			draw();

		}

		

		

		

		

		///////////////////////////////////

		// public methods

		///////////////////////////////////

		

		/**

		 * Draws the visual ui of the component.

		 */

		override public function draw():void

		{

			super.draw();

			_tf.text = _text;

			if(_autoSize)

			{

				_tf.autoSize = TextFieldAutoSize.LEFT;

				_width = _tf.width;

				dispatchEvent(new Event(Event.RESIZE));

			}

			else

			{

				_tf.autoSize = TextFieldAutoSize.NONE;

				_tf.width = _width;

			}

			_height = _tf.height = 18;

		}

		

		///////////////////////////////////

		// event handlers

		///////////////////////////////////

		

		///////////////////////////////////

		// getter/setters

		///////////////////////////////////

		

		/**

		 * Gets / sets the text of this Label.

		 */

		public function set text(t:String):void

		{

			_text = t;

			if(_text == null) _text = "";

			invalidate();

		}

		public function get text():String

		{

			return _text;

		}

		

		/**

		 * Gets / sets whether or not this Label will autosize.

		 */

		public function set autoSize(b:Boolean):void

		{

			_autoSize = b;

		}

		public function get autoSize():Boolean

		{

			return _autoSize;

		}

		

		/**

		 * Gets the internal TextField of the label if you need to do further customization of it.

		 */

		public function get textField():TextField

		{

			return _tf;

		}

	}

}