I noticed a strange behavior. Including the HotCocoa::Behaviors module
in subclasses indeed seem to merge the appropriate custom methods.
>> class MyButton < NSButton; include HotCocoa::Behaviors; end
=> MyButton
>> b = MyButton.new
=> 0
>> b.on_action {}
=> 0
But extending an existing object does not work in the same way.
>> b2 = NSButton.new
=> #<NSButton:0x800523420>
>> b2.extend HotCocoa::Behaviors
=> #<NSButton:0x800523420>
>> b2.on_action {}
NoMethodError: undefined method `on_action' for #<NSButton:0x800523420>
from (irb):12
from /usr/local/bin/macirb:12:in `<main>'
>>
Laurent
On Dec 3, 2008, at 6:13 AM, Richard Kilmer wrote:
class MyView < NSView
include HotCocoa::Behaviors
def drawRect(rect)
#do something...
end
end
That HotCocoa::Behaviors was what you were missing.
On Dec 3, 2008, at 12:58 AM, John Shea wrote:
Hi Ben,
thanks for your answer.
I tried that initially, but my subclass was having problems being
added to the layout view.
Anyway - somehow I got something going a little further - the
important thing was to have a create method which has :
alloc.initWithFrame([0, 0, *GameSize]) in my NSView subclass...
I did not get much further than painting black (transparency etc
did not work) - but its on the back burner while I experiment a bit
more with plain MacRuby.
Cheers and thanks,
John
On Dec 2, 2008, at 10:37 PM, Benjamin Stiglitz wrote:
I am sure there is an easy answer to this question, but I have
not figured it out after some experimenting (nor can I find an
example in the examples)
What do I do if i want to subclass (say) an NSView ? And yet
still employ that subclass with all the rest of the hot cocoa
magic? (so without using nib/xibs)
I would do this to overwrite the drawRect callback for NSView for
example - perhaps to do some animation.
class MyView < NSView
def drawRect(r)
end
end
or, even better in some cases
a = view(:something)
class << a
def drawRect(r)
end
end
-Ben
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