[MacRuby-devel] HotCocoa subclassing NSView

Richard Kilmer rich at infoether.com
Tue Feb 17 10:47:03 PST 2009


They do inherit constants, custom methods, etc (see lib/hotcocoa/ 
mapper.rb, NOTE: ugly file right now, is a target for refactor)

They are modules and those modules are mixed in.

Best,

Rich

On Feb 17, 2009, at 12:46 PM, Matt Aimonetti wrote:

> Thanks Rich, but if I do what you recommended, I guess I would not  
> be able to use all the NSView extra stuff defined by the existing  
> NSView mapping (constants, custom methods etc..).
>
> Wouldn't be better to make each mapping a mixin? That would allow us  
> to reuse some default settings and subclassing a mapped class would  
> give us all the mapping goodies.
>
> - Matt
>
>
>
> On Tue, Feb 17, 2009 at 4:33 AM, Richard Kilmer <rich at infoether.com>  
> wrote:
> This is how I would do it:
>
> class MyNewView < NSView
>
>  def drawRect(rect)
>  end
>
> end
>
> HotCocoa::Mappings.map :my_new_view => :"MyNewView" do
>  defaults :frame => DefaultEmptyRect, :layout => {}
>
>  def init_with_options(view, options)
>    view.initWithFrame options.delete(:frame)
>  end
> end
>
> Then in your code you can just use it like any HotCocoa mapped class:
>
> my_new_view :frame => [0,0,10,10]
>
> etc.
>
> -rich
>
>
>
> On Feb 17, 2009, at 4:15 AM, Matt Aimonetti wrote:
>
> I'm working on a new HotCocoa sample and I need to subclass NSView  
> to override drawRect and add few more methods.
> I would like to be able to reuse all the goodies from HotCocoa and  
> the view helper, what's the best way to do that?
>
> -Matt
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