[Rubycocoa-talk] Why I love RubyCocoa

[Allison N. <dem...@ma...>]

I've just finished writing a little snippet of code that made me remember why I love programming in Ruby so much, and how great it is that RubyCocoa lets me do so whilst accessing all the glory that is Cocoa :-)  So I thought I'd share :-)

It's an application of open classes in Ruby.  Basically I wanted a method that would give me an NSImage of any NSView that I wanted.  So here it is:

require 'osx/cocoa'
include OSX

class NSView < NSResponder

    def captureImage
        bit_image_rep = self.bitImageRepForCachingDisplayInRect(self.visibleRect)
        self.cacheDisplayInRect_toBitmapImageRep(self.visibleRect, bit_image_rep)
        image = NSImage.alloc.initWithSize(bit_image_rep.size)
        image.addRepresentation(bit_image_rep)
        image
    end

end


And to use it:

frame = NSRect.new(0, 0, 100, 100)
some_view = NSButton.alloc.initWithFrame(frame)
image = some_view.captureImage

Although why you'd want to capture the image of a button is beyond me...

Actually, being a bit of a Cocoa newbie, is there a simpler way of doing this?

Alli