Re: [Dynapi-Dev] Problems in inheritence (General and PanelBar)

[Peter R. <ant...@gm...>]

Hi Daniel,

> Hi Peter, I am the one to blame :)

to blame for these cool tiny widget ;) Whould it be acceptable if I
rewrite the PanelBar a bit so that it follows the dynapi-class-paradigm
and is "subclassable" (does this word really exist? ;) ?

> Have had very little time right now, but I will try to fix the panel
> bar, would also be great to see what you have done with it.

I am writing something like a windowmanager (for mdi-environments).
I hope I can write it "abstract" enough so I can share it - the current
development is highly directed towards our current (special) needs though.

Regards,
Peter

> Regards
> Daniel Tiru
> 
> -----Original Message-----
> From: dyn...@li...
> [mailto:dyn...@li...] On Behalf Of Peter
> Romianowski
> Sent: den 27 oktober 2003 15:41
> To: dyn...@li...
> Subject: Re: [Dynapi-Dev] Problems in inheritence (General and PanelBar)
> 
> 
> Hi,
> 
> 
>>Instead of var p = PanelBar.prototype = new DynLayer
>>it should be var p = dynapi.setPrototype('PanelBar','DynLayer');
> 
> 
> Ahhh, that makes everything clear! Works now. Will this be changed in
> the CVS too?
> 
> This does not solve the problem I have with the constructor. I saw a
> discussion about the PanelBar before where someone suggested to move
> stuff out of the constructor. Will there be any fix to the PanelBar
> regarding this "issue" (not able to subclass it)?
> 
> Keep up the good work,
> 
> Peter
> 
> 
> 
>>--
>>Raymond Irving
>>
>>--- Peter Romianowski <ant...@gm...> wrote:
>>
>>
>>>Hi,
>>>
>>>I have two problems here. First I cannot subclass
>>>PanelBar until I
>>>comment out some stuff in the constructor like that:
>>>
>>>function
>>>
>>
>>PanelBar(lyrmnu,lyrcnt,mnuheight,x,y,w,h,mnucss,cntcss,minimized)
>>
>>
>>>{
>>>
>>>  this.DynLayer = DynLayer;
>>>  this.DynLayer(null,x,y,w,h,null);
>>>
>>>  if (lyrmnu) {	
>>>    this.x = x;
>>>    ...
>>>   
>>>
>>
>>this.menu.setHTML(this._mnuhtml.replace('{@min}',this._mnuhtmlmax));
>>
>>
>>>  }
>>>		
>>>  this.onPreCreate(PanelBar.PreCreateEvent);
>>>  this.onCreate(PanelBar.CreateEvent);
>>>}
>>>}
>>>
>>>Is there any common pattern how to avoid problems
>>>with subclassing? Or
>>>am I doing something totally stupid in trying to
>>>subclass PanelBar?
>>>
>>>The next problem is that I can't enable the
>>>dragevents on my subclass of
>>>PanelBar until I change dragevent.js line 225
>>>(enableDragEvents):
>>>
>>>if(lyr.isClass('DynLayer')) 
>>>lyr.addEventListener(DragEvent.lyrListener);
>>>
>>>to
>>>
>>>lyr.addEventListener(DragEvent.lyrListener);
>>>
>>>That is bruteforce, I know ;) I just tried to figure
>>>out where the
>>>problem is. And I found that
>>>myPanelBarSubclass.isClass('DynLayer') 
>>>yields false which I consider as wrong - it is a
>>>DynLayer since it is a 
>>>subclass of PanelBar which is a subclass of
>>>DynLayer! The quickest fix I 
>>>can imagine is to rewrite the isClass-method to tell
>>>whether any 
>>>superclass matches the argument. I don't know if
>>>this breaks something, 
>>>so I didn't try that yet.
>>>
>>>If I am trying to do something totally wrong then
>>>please tell me!
>>>Otherwise I will gladly help "fixing" the issues.
>>>
>>>Regards,
>>>Peter
>>>
>>>default disclaimer: DynAPI rules! ;)
>>>
>>>
>>>
>>>
>>
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