This post originated from an RSS feed registered with Ruby Buzz
by Rudi Cilibrasi.
Original Post: Gtk and Rails: a strange meeting
Feed Title: Esoteric Ruby Blog
Feed URL: http://cilibrar.com/~cilibrar/erblog.cgi/index.rss
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Well, I woke up this morning with a strange idea in my head. I was thinking
about how cool Rails is, and how sad it is that so few people get to know it
right now. I then remembered another nice library called Gtk, the Gnu version
of a portable GUI toolkit, and I remembered the Ruby binding for it.
Then I thought, what if you wrote something in rails that provided a Gtk-like
interface. So that you could run ruby Gtk programs under a rails web
application. It would have to dynamically generate the html that would best
approximate the Gtk calls that have been issued. An hour and a half later,
rtk was born:
Download rtk.tar.gz source
Here is the Two Buttons Ruby-Gnome example that this is based on.
And here is the controller file where the GtkRails code is embedded:
class MulController < ApplicationController
private
def zputs(*args)
args.each { |i|
Gtk::Window.getMessageConsole.addmsg(i)
}
end
def greeting(num)
zputs "This is button #{num}"
end
public
def ui
# @w = @session['w']
evt = @params['event']
id = @params['id']
Gtk::Signallable.send_signal(id, evt) if evt && id
rt()
render :action=>'rt'
end
def rt
unless @w = Gtk::Window.getTopWindow
# Build the GUI
window = Gtk::Window.new(Gtk::WINDOW_TOPLEVEL)
hbox = Gtk::HBox.new(false,0)
button1 = Gtk::Button.new("button 1")
button2 = Gtk::Button.new("button 2")
but3 = Gtk::Button.new("but3")
hbox.pack_start button1, true, true, 0
hbox.pack_start button2, true, true, 0
window.add hbox
window.add but3
# Callbacks and configuration.
window.set_title "Two buttons"
window.border_width 10
window.signal_connect('delete_event') { false }
window.signal_connect('destroy') { Gtk.main_quit }
button1.signal_connect('clicked') { greeting(1) }
button2.signal_connect('clicked') { greeting(2) }
but3.signal_connect('clicked') { zputs "You pressed button 3!" }
# All done.
window.show_all
Gtk.main
@w = Gtk::Window.getTopWindow
end
end
end
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