installer/src/org/apache/flex/packageflexsdk/util/CalcButtonWidth.as

////////////////////////////////////////////////////////////////////////////////
//
//  Licensed to the Apache Software Foundation (ASF) under one or more
//  contributor license agreements.  See the NOTICE file distributed with
//  this work for additional information regarding copyright ownership.
//  The ASF licenses this file to You under the Apache License, Version 2.0
//  (the "License"); you may not use this file except in compliance with
//  the License.  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////

package org.apache.flex.packageflexsdk.util
{
	import flash.events.Event;
	
	import spark.components.Button;

	public class CalcButtonWidth
	{
		protected static var PADDING:int = 20;
		
		protected var hiddenButton:Button;
		
		public function CalcButtonWidth(hiddenButton:Button)
		{
			this.hiddenButton = hiddenButton;
		}
		
		public function buttonWidth(button:Button):int {
			var width:int = 0;
			
			hiddenButton.label = button.label;
			hiddenButton.validateNow();
			width = hiddenButton.measuredWidth + PADDING;
			
			if (button.width != width) {
				button.width = width;
			}
			
			return width;
		}
		
		public function maxButtonWidth(buttons:Array):int {
			var width:int = 0;
			
			for each (var button:Button in buttons) {
				width = Math.max(width, buttonWidth(button));
			}
			
			return width;
		}
	}
}