Re: Re: SV: [Dynapi-Dev] Widget constructor

[Barre B. <ba...@ho...>]

hmm seems kindof obscure..
It strikes me as having a construct method to be a cleaner 
way of doing initialization.. almost like calling super() 
in Java... hm?
(The code below should work)

function DynLayer() { this.construct(arguments) }
DynLayer.prototype.construct=function(){
	var a=arguments[0]
........etc.......

function widget(){
   this.construct(arguments)
}
widget.prototype=new DynLayer


> Forget what I wrote.... it should be this instead:
> 
> function widget(argarray) {
>    this.DynLayer = DynLayer
>    eval("this.DynLayer("+argarray.join(",")+")")
> }
> widget.prototype = new DynLayer
> 
> /Lunna
> 
> At 2000-11-24 06:20 , you wrote:
> >For that particular case, use the array's join() method.
> >
> >function widget(argarray) {
> >   this.DynLayer = DynLayer
> >   this.DynLayer(argarray.join(","))
> >}
> >widget.prototype = new DynLayer
> >
> >/Lunna
> >
> >At 2000-11-24 02:07 , you wrote:
> >>Hmm... does not seem to work at all.
> >>IE4 says it doesn't support the property or method.
> >>Could you elaborate, or send me an example of this 
being used somewhere?
> >>Another problem: DynLayer treats objects sent as the 
first argument as a 
> >>DynLayer object to setStyle after.
> >>And as arrays(the array arguments in this case) are 
objects and 
> >>correspondingly are identified as such, the setStyle 
method will be called, 
> >>which is not the intent.
> >>
> >>/Bart
> >> 
> >>-----Ursprungligt meddelande-----
> >>Från: Dan Steinman <dy...@fu...>
> >>Till: dyn...@li... <dynapi-
de...@li...>
> >>Datum: den 24 november 2000 01:37
> >>Ämne: Re: [Dynapi-Dev] Widget constructor
> >>
> >>
> >>>Just make your widget constructor call the DynLayer as 
a method:
> >>>
> >>>function widget(arguments) {
> >>>   this.DynLayer = DynLayer
> >>>   this.Dynlayer(arguments)
> >>>}
> >>>widget.prototype = new DynLayer
> >>>
> >>>Dan
> >>>
> >>>On Fri, Nov 24, 2000 at 12:39:05AM +0100, Bartek wrote:
> >>>> I was wondering whether it is a good idea to have 
some inheritible 
> >>constructor functionality for DynLayer.
> >>>> I want to be able to create a widget object that 
extends the DynLayer and 
> >>inherits its initialization, i.e so I wouldn't have to 
rewrite the 
> >>initialization code for the widget but instead do 
something like this:
> >>>> 
> >>>> ------------------------------------------
> >>>> 
> >>>> function WidgetLayer(){
> >>>>     this.construct(arguments)
> >>>> }
> >>>> WidgetLayer.prototype=new DynLayer
> >>>> 
> >>>> -----------------------------------------------------
-
> >>>> 
> >>>> and it would look something like this for dynlayer:
> >>>> 
> >>>> -----------------------------------------------------
----------------
> >>>> 
> >>>> function DynLayer(){ this.construct(arguments) }
> >>>> DynLayer.prototype.construct=function(){
> >>>>      alert()
> >>>>      var a=arguments
> >>>>      if (a.length==1 && a[0]!=null && typeof(a[0])
=="object") 
> >>this.setStyle(a[0])
> >>>>      else {
> >>>>          this.id=a[0]||"JSDynLayer"+
(DynLayer.nullCount++)
> >>>>          this.x=a[1]||0
> >>>>           .......etc...
> >>>>     }
> >>>> }
> >>>> 
> >>>>
> ----------------------------------------------------------
-----------------
> >>>> 
> >>>> I am trying to implent this as I write, to test it 
out, and I'm having 
> >>some problems.
> >>>> Maybe there is a better way of doing this... If so , 
please let me
> know. :)
> >>>> Or am I on the right track?
> >>>> 
> >>>> 
> >>>> /Bart
> >>>_______________________________________________
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dev
> >>
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> >
> >
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> 
> 
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