 ###############################################################################
 #  Copyright 2011 Ian McIntosh <ian@openanswers.org>
 #  Copyright 2022 Georges Khaznadar <georgesk@debian.org> (migration to gtk3)
 #
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
 #  the Free Software Foundation; either version 2 of the License, or
 #  (at your option) any later version.
 #
 #  This program is distributed in the hope that it will be useful,
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU Library General Public License for more details.
 #
 #  You should have received a copy of the GNU General Public License
 #  along with this program; if not, write to the Free Software
 #  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 ###############################################################################

require 'delegate'

class GladeWindow < DelegateClass(Gtk::Window)
	# Useful constants
	MOUSE_BUTTON_1, MOUSE_BUTTON_2, MOUSE_BUTTON_3 = (1..3).to_a

	def initialize(root_widget_name, options = {})
		file_name = sprintf("%s.glade", root_widget_name)
		instance_variable_names = options[:widgets] || []

		@builder = Gtk::Builder.new
    @builder.add_from_file(file_name)

		# create instance variables out of created widgets
		instance_variable_names.each { |name|
			instance_variable_set('@' + name.to_s, @builder.get_object(name.to_s))
		}

		# hookup signal handlers
		@builder.connect_signals { |handler_name|
			method(handler_name)
		}

		# in the class, we will refer to the GtkWindow as @window when referencing variables
		@window = @builder.get_object(root_widget_name)
		@window.realize

		super(@window)		# ...as required by delegation
	end
end

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