From: Joao Pedrosa <joaopedrosa@...>
Date: 2005-04-07T05:00:36+09:00
Subject: Re: constrained gtk radio buttons

Hi,

On Apr 6, 2005 4:18 PM, Paul Rubel <prubel@bbn.com> wrote:
> Hello,
> 
> I've been trying out gtk and gtk2 for the first time over the past few
> days. Overall it has been a good experience. At the moment however,
> I'm stumped and was hoping someone might be able to enlighten me.

I've created a sample that works with Ruby-GNOME2. When a Radiobutton
is activated, it triggers the "clicked" event, even when the
activation is thru code, so I created a method to handle that. I've
never used GTK 1.x so I can't test your version. :-) Follows:

require 'gtk2'

class DwellWindow < Gtk::Window

 def initialize()
   super
   @single_button = Gtk::RadioButton.new("Single")
   @double_button = Gtk::RadioButton.new(@single_button,"Double")
   @double_button.signal_connect("clicked") {activate_button(@left_button)}

   @left_button = Gtk::RadioButton.new("Left")
   @right_button = Gtk::RadioButton.new(@left_button, "Right")
   @right_button.signal_connect("clicked") {activate_button(@single_button)}

   type_box = Gtk::VBox.new
   type_box.pack_start @single_button, true, true, 0
   type_box.pack_start @double_button, true, true, 0

   button_box = Gtk::VBox.new
   button_box.pack_start @left_button, true, true, 0
   button_box.pack_start @right_button, true, true, 0

   top_box = Gtk::HBox.new
   top_box.pack_start button_box, true, true, 0
   top_box.pack_start type_box, true, true, 0

   add(top_box)
   show_all
 end
 
 def activate_button b
   if not @activating
     @activating = true
     b.active = true
     @activating = nil
   end
 end

end

Gtk.init
dwell = DwellWindow.new
dwell.show_all
Gtk::main

-------------

Cheers,
Joao