Sorry I replied too quickly and didn't read properly. Overwriting the init method of a Cocoa class subclass is not recommended. Here is an example of what I was suggesting: http://github.com/mattetti/phileas_frog/blob/master/image_layer.rb#L44 Which then get called there: http://github.com/mattetti/phileas_frog/blob/master/game_controller.rb#L57 In any cases, you still need to call init (or super if you overwrite initialize) and you need to return self. I hope that helps. - Matt On Thu, Jan 21, 2010 at 4:09 PM, steve ross <cwdinfo@gmail.com> wrote:
So, this class doesn't reopen a Cocoa class, it subclasses it. Same anyhow? The real problem is that the class is instantiated as a side effect of nib loading, and the only place I've been able to successfully set initial state is awakeFromNib. I either can't, or don't know how to make the nib load process call a DuplicateCounterTextField.initWithSomeCoolState method. My impression is that awakeFromNib is a poor place for setting initial state because the order in which awakeFromNib's are called is undefined (or is it?). Not to overcomplicate things, but the controller needs to be able to tweak the state of the control -- for example, to change the splitter regex.
Thanks for helping out here.
Steve
On Jan 21, 2010, at 3:25 PM, Matt Aimonetti wrote:
When reopening a Cocoa class, you should not overwrite initialize and if you were to do it anyway, don't forget to call super and to return self. The Cocoa way is to create your own initializer to end up with something like DuplicateCounterTextField.alloc.initWithDuplicate
Also, remember that when initializing a Cocoa class, you need to do DuplicateCounterTextField.alloc.init
- Matt
On Thu, Jan 21, 2010 at 3:20 PM, steve ross <cwdinfo@gmail.com> wrote:
I'm sure this is an elementary question, but I have the class below. In IB, I set several NSTextField controls to this class. Everything works in the blah, blah, blah part, but strangely enough the
puts "initialize dctf"
never seems to be called. Any thoughts as to why?
require 'strings'
class DuplicateCounterTextField < NSTextField include Strings
attr_accessor :splitter, :completions attr_accessor :wordCount, :duplicateCount
def initialize puts "initialize dctf" @splitter = /\W+/ @wordCount = 0 @cachedWordCount = 0 @duplicateCount = 0 end
# blah, blah, blah working code
def textDidChange(notification) words = stringValue.split(@splitter) @wordCount = words.length @duplicateCount = @wordCount - words.uniq.length
if delegate.respond_to?('controlCountDidChange:wordCount:duplicateCount:') delegate.controlCountDidChange(self, wordCount:@wordCount, duplicateCount:@duplicateCount) end end
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