Hello :)
you can but a good event model use AsBroadcaster or other system to dispatch
the events :) In my personnal AS2 OpenSource framework i use a event model
compatible with W3C Dom3 event model for example (like AS3 framework)....
it's more easy to use a event model to dispatch information in callbacks
methods ! If you want dispatch the information in your class... use
this.addListener(this) and you can use onX method directly on your instance
:)
class MyUIObject
{
/**
* Constructor of the class.
*/
public function MyUIObject()
{
this.addListener(this) ;
}
/**
* Inject addListener, removeListener and broadcastMessage methods in
the prototype of the class.
*/
static private var __INITBROADCASTER__ = AsBroadcaster.initialize(
MyUIObject.prototype ) ;
// Public Properties
/**
* The code of this method is injected by the AsBroadcaster tool.
* Use this declaration in the AS2 compilation.
*/
public var addListener:Function ;
/**
* The code of this method is injected by the AsBroadcaster tool.
* Use this declaration in the AS2 compilation.
*/
public var broadcastMessage:Function ;
/**
* This method is empty but can be override by the user in this code to
notify the x value modification.
*/
public var onX:Function ;
/**
* The code of this method is injected by the AsBroadcaster tool.
* Use this declaration in the AS2 compilation.
*/
public var removeListener:Function ;
/**
* (read-write) Returns the x position of the ui object.
*/
public function get x():Number
{
return getX() ;
}
/**
* (read-write) Sets the x position of the ui object.
*/
public function set x( value:Number ):Void
{
setX( value ) ;
}
// Public Methods
/**
* Returns the x position of the UI object.
*/
public function getX():Number
{
return _x;
}
/**
* Sets the x position of the UI object.
*/
public function setX( value:Number ):Void
{
_x = value ;
broadcastMessage("onX" , this, _x) ;
}
// Private Properties
/**
* The internal x position of the UI object.
*/
private var _x:Number ;
}
And in your code :
var ui:MyUIObject = new MyUIObject();
ui.onX = function ( who , x )
{
trace("onX : " + who + " with the value : " + x) ;
}
ui.addListener(this) ;
ui.x = 25 ;
EKA+ :)
2006/11/30, Matthias Dittgen <[EMAIL PROTECTED]>:
Hello EKA,
thanks for your reply.
to your 1: yes, i really don't wanted to use watch. the watch method
is less performant, I have read on this list sometime before. That's,
why I asked my question. It admit, it has been more than only one
question. :-)
to your 2: I usually give my constructor the same name as the class.
This is a typical mistake, when I use the copy&paste&change method to
write emails.
to your 3: "is AS2 used get and set keywords to create virtual
properties and don't use addProperty method!", I was not aware of the
set and get keywords. Is this syntax supported by both Flash IDE and
MTASC? Be sure, I'll try that!
to your second 3: "you can use in your example the Asbroadcaster class"
But I don't have to. The way you use "set x(x:Number)", "get
x():Number", "setX(x:Number)" and getX():Number", I could just change
your
public function setX( value:Number ):Void
{
_x = value ;
broadcastMessage("onX" , this, _x) ;
}
into:
public function onX():Void {} // can be dynamically overwritten
public function setX( value:Number ):Void
{
_x = value ;
onX();
}
,can't I?
But again: thanks a lot for introducing the set and get keywords to
me. I'll try that now!
Thanks,
Matthias
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