Re: [Rubycocoa-talk] Importing Ruby Classes into Obj-C code

[Knud H. M. <knu...@de...>]

Am 14.04.2008 um 12:58 schrieb Axel M. Roest:

> At 12:51 +0100 14-04-2008, Knud Hinnerk Möller wrote:
>> > @implementation KNTileView
>>>     ...
>>>     NSSize originalSize = [dataSource dimensions];
>>>     ...
>>> @end
>> >
>> > This leads to a compile "error: invalid initializer".
>
>
> How do you initialize the dataSource object?
> You can e.g. do 'dataSource=KNTiledMap.new' or use Interface Builder  
> to instantiate the object from the class.


Thanks for the help. Ok, there are three players here. KNTileMap,  
which is a RubyCocoa class, AppController, also a RubyCocoa class, and  
KNTileView, an Obj-C class.

The view and controller get instantiated through IB. In the  
controller, there is this code:

      @map = KNTiledMap.alloc.initWithPath(@pathTextBox.stringValue)
      @tileView.setDataSource(@map)

That works. In the view, I have now made the call to [dataSource  
dimensions] compile by adding a protocol definition to the view class  
(as shown here: http://www.rubycocoa.com/an-introduction-to-rubycocoa/ 
4) - this seems very awkward. Also, the method call returns a nonsense  
value. Is there a problem with passing C structs through Ruby?

Cheers,
Knud

-------------------------------------------------
Knud Möller, MA
+353 - 91 - 495086
Smile Group: http://smile.deri.ie
Digital Enterprise Research Institute
   National University of Ireland, Galway
Institiúid Taighde na Fiontraíochta Digití
   Ollscoil na hÉireann, Gaillimh