dynapi-dev

[Dynapi-Dev] Widget constructor

[Bartek <ba...@ho...>]

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=3Dnew DynLayer

------------------------------------------------------

and it would look something like this for dynlayer:

---------------------------------------------------------------------

function DynLayer(){ this.construct(arguments) }
DynLayer.prototype.construct=3Dfunction(){
     alert()
     var a=3Darguments
     if (a.length=3D=3D1 && a[0]!=3Dnull && typeof(a[0])=3D=3D"object") =
this.setStyle(a[0])
     else {
         this.id=3Da[0]||"JSDynLayer"+(DynLayer.nullCount++)
         this.x=3Da[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

Re: [Dynapi-Dev] Widget constructor

[Dan S. <dy...@fu...>]

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

[Dynapi-Dev] Widget constructor

[Brandon M. <bnd...@ho...>]

How to register as a developer?Guys... don't sweat he small stuff. All =
of this has already been completed.
If you go back about 3-4 months ago I wrote a little file called =
SuperClass.js.

Based on this class I have been able to get complete object based =
inheritance to work.
It took a few weeks, but it works. Just look at that code from way back =
when. It needs work as it is, but it's basis is sound.
  ----- Original Message -----=20
  From: Bartek=20
  To: dyn...@li...=20
  Sent: Thursday, November 23, 2000 6:39 PM
  Subject: [Dynapi-Dev] Widget constructor


  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:
  =20
  ------------------------------------------
  =20
  function WidgetLayer(){
      this.construct(arguments)
  }
  WidgetLayer.prototype=3Dnew DynLayer
  =20
  ------------------------------------------------------
  =20
  and it would look something like this for dynlayer:
  =20
  ---------------------------------------------------------------------
  =20
  function DynLayer(){ this.construct(arguments) }
  DynLayer.prototype.construct=3Dfunction(){
       alert()
       var a=3Darguments
       if (a.length=3D=3D1 && a[0]!=3Dnull && =
typeof(a[0])=3D=3D"object") this.setStyle(a[0])
       else {
           this.id=3Da[0]||"JSDynLayer"+(DynLayer.nullCount++)
           this.x=3Da[1]||0
            .......etc...
      }
  }
  =20
  =
-------------------------------------------------------------------------=
--
  =20
  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?
  =20
  =20
  /Bart