From: Hans Fugal <fugalh@...>
Date: 2003-07-03T02:01:20+09:00
Subject: Re: FXDataTarget not updating my variable

Hi Lyle, 

> Generally speaking, SEL_CHANGED messages are usually sent while a 
> widget's value is changing, and SEL_COMMAND when it is "finished".
I was aware of what you are talking about, and I actually only want it
to happen on SEL_COMMAND (when the user presses enter). In that respect
it is behaving as I expect (the when), but it is not updating @name like
I expected. (the what)

I wrote a little test to demonstrate what's happening. As the comment
says inline, I expected the datatarget to change the value of the
variable, but it does not. (That's what the Fox docs seem to indicate
should be happening, at least in my mind.)

#!/usr/bin/env ruby
require 'fox'
include Fox
class DataTargetWindow < FXMainWindow
    def initialize(app)
	super(app, "Data Targets Test", nil, nil, DECOR_ALL, 20, 20, 200, 100)

	@foo = "foo"
	dt = FXDataTarget.new(@foo)

	vframe = FXVerticalFrame.new(self)
	frame = FXHorizontalFrame.new(vframe)

	l = FXLabel.new(frame,"B")
	l.target = dt
	l.selector = FXDataTarget::ID_VALUE
	FXTextField.new(frame,10,dt,FXDataTarget::ID_VALUE)

	FXButton.new(vframe,"puts").connect(SEL_COMMAND) do
	    # I expected @foo and dt.value to be the same, but they will be
	    # different if the value has changed in the textfield.
	    puts "#{@foo},#{dt.value}" 
	end
	
	show
    end
end
if __FILE__ == $0
  application = FXApp.new("DataTarget", "FoxTest")
  window = DataTargetWindow.new(application)
  application.create
  application.run
end


-- 
 Hans Fugal                 | De gustibus non disputandum est.
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