Re: [Rubycocoa-talk] [XCode] GDB (debugger) and NSOutlineView[MESSAGE NOT SCANNED]

[Jonathan P. <jp...@dc...>]

On 17 Feb 2006, at 8:33, Yvon Thoraval wrote:

> in my previous Controller.rb, i've added :
>
> require 'OutlineViewProxyClass.rb'
> include NSOutlineViewable             # probably not usefull ?

Yeah, you need to add it specifically to the Ruby class you are  
returning from the outline view (after requiring rexml first):

require 'rexml/document'
module REXML
   class Element
     include NSOutlineViewable
   end
end

I see you already have that in 'OutlineViewProxyClass.rb' so it  
should be fine.

> i've transformed each bookmark to bookmark.slave  seems to be no  
> probs here.
>
> However for "def outlineView_child_ofItem(aTree, index, bookmark)"  
> i've done :
>
> return @folder.to_nsobj if bookmark.class == NilClass  # case of  
> root element @folder being a REXML::Element

By including 'to_nsobj' in the REXML::Element class you shouldn't  
need to call it explicitly. RubyCocoa looks for a 'to_nsobj' method  
when passing a Ruby instance to Cocoa. Also, since 'nil' evaluates as  
false in ruby, you could do:

if bookmark then
   children = bookmark.slave.get_elements("*")
   return children[index]
else
   return @folder
end

> and i get an error :
>
> /Users/yvon/work/RubyCocoa/BookmarksMerge/build/Development/ 
> BookmarksMerge.app/Contents/Resources/OutlineViewProxyClass.rb: 
> 14:in `NSApplicationMain': NSApplicationMain -  
> RBException_TypeError - can't convert REXML::Element into Integer  
> (OSX::OCException)
> 	from /Users/yvon/work/RubyCocoa/BookmarksMerge/build/Development/ 
> BookmarksMerge.app/Contents/Resources/rb_main.rb:44

Ah, my fault. A copying-to-Mail.app error crept in.

This line from OutlineViewProxy#init:
    @slave = slave
should be
    @slave = slave.object_id

That should hopefully fix it.

Jonathan