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Old 02-08-2008, 08:12 AM
ccoonen ccoonen is offline
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Icon11 Advancing the TypeSafe Flash AS3 Enum

Not only is this enum typesafe, it can be gotten, compared, and parsed.

// Creates and sets a state
var _state:InteractiveObjectState = InteractiveObjecState.parse("active");

// Returns that state
trace(InteractiveObjectState.toString(_state));

// Compares state
if(_state == InteractiveObjectState.DEFAULT) { // Do Something }

if you have a core interactive object, which all views inherit, then everything has inherited state management

Code:
package views.core {
    
    /**
     * Enum for Interactive Object State
     */
    public class InteractiveObjectState {
        public static const NONE:InteractiveObjectState = new InteractiveObjectState();
        public static const DEFAULT:InteractiveObjectState = new InteractiveObjectState();
        public static const ACTIVE:InteractiveObjectState = new InteractiveObjectState();
        public static const INACTIVE:InteractiveObjectState = new InteractiveObjectState();
        public static const HIDDEN:InteractiveObjectState = new InteractiveObjectState();
        
        /**
         * Parses an InteractiveObjectState Object from a String
         * @param    a as String
         * @return    an InteractiveObjectState Object
         */
        public static function parse(s:String):InteractiveObjectState {
            var retState:InteractiveObjectState;
            switch(s.toLowerCase()) {
                case "default":
                    retState = DEFAULT; break;
                case "active":
                    retState = ACTIVE; break;
                case "inactive":
                    retState = INACTIVE; break;
                case "hidden":
                    retState = HIDDEN; break;
                default:
                    retState = NONE; break;
            }
            return retState;
        }
        
        /**
         * Displays the InteractiveObjectState as a String
         * @param    s as InteractiveObjectState
         * @return    String
         */
        public static function toString(s:InteractiveObjectState):String {
            var retStr:String;
            switch(s) {
                case DEFAULT:
                    retStr = "default"; break;
                case ACTIVE:
                    retStr = "active"; break;
                case INACTIVE:
                    retStr = "inactive"; break;
                case HIDDEN:
                    retStr = "hidden"; break;
                default:
                    retStr = "none"; break;
            }
            return retStr;
        }
    }
}
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