From: rubist __ <nbnntp1@...1.net>
Date: 2006-07-29T04:07:46+09:00
Subject: Ruby/Tk code critique

I have a bunch of Tk buttons tied to code. They're wrapped in an array 
to process later.

What I'd like to do is set each one to have a visual indicator that it 
was used. So after it's clicked, it gets configured to have relief 
"flat" or background "yellow" etc.

And then later, when a new row is being processed, I can iterate thru 
button_array and reset their color/relief etc. -- this is to aid the 
user in knowing which buttons they've already used.

The simple/ugly way I suppose would be to make each button be like:
TkButton.new(frame) {
 text "bleh"
 command proc {
         self.configure("relief","flat")
         run_code(:buttoncode)
 }
}

What I'm looking for is basically an elegant way to do this. Rather than 
modify each proc to add code to change the relief, I'd like an 'around' 
method to put around run_code. Or in run_code if I could identify the 
button that was clicked.

#Random status label changes
		pru=proc{@status.configure('text'=>"Processing...")}
		prr=proc{@status.configure('text'=>"Ready...")}

		## Proc for ETL tasks
		retl = proc{run_code(:etl)}
		etlre = proc{run_code(:etlreuse)}
		idsre = proc{run_code(:idsreuse)}
		edwre = proc{run_code(:edwreuse)}
		sorre = proc{run_code(:sorreuse)}
		#Buttons - ETL reuse
		lxxs_4 = TkButton.new(reusefr) { text "Reuse-ETL"; command etlre}
		lxxs_5 = TkButton.new(reusefr) { text "Reuse-IDS"; command idsre}
		lxxs_6 = TkButton.new(reusefr) { text "Reuse-EDW"; command edwre}
		lxxs_7 = TkButton.new(reusefr) { text "Reuse-SOR"; command sorre}

button_array = [lxxs_4, lxxs_5 etc.]

Incidentally, run_code looks like this:
def run_code(par)
	@controller.dispatcher(par)
end


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