From: reavey <reavey@...>
Date: 2003-02-27T08:11:35+09:00
Subject: passing argument to execute a program

I don't see how to add an argument to get this tutorial script to run.
I've tried ruby -i [1] test1.rb etc...
thanks in advance
re-v




require 'gtk'

# This program takes an argument.
# Make sure that we have an argument.

unless which = ARGV.shift
    raise "This program takes a numeric argument from 1-3"
    Gtk::main_quit
end

# Make a box with button-labels. Arguments for the variables
# we're interested are passed in to this function.
def make_box(homogeneous, spacing, expand, fill, padding)
    hbox = Gtk::HBox.new(homogeneous, spacing)

    # Create some buttons.
    button = Gtk::Button.new "box.pack "
    hbox.pack_start button, expand, fill, padding

    button = Gtk::Button.new "button, "
    hbox.pack_start button, expand, fill, padding

    button = Gtk::Button.new "#{expand}, "
    hbox.pack_start button, expand, fill, padding

    button = Gtk::Button.new "#{fill}, "
    hbox.pack_start button, expand, fill, padding

    button = Gtk::Button.new "#{padding}"
    hbox.pack_start button, expand, fill, padding

    hbox
end


window = Gtk::Window.new(Gtk::WINDOW_TOPLEVEL)

# This time we connect the 'delete_event' signal straight to Gtk.main_quit
# so we don't need to connect the 'destroy' signal.
window.signal_connect('delete_event') { Gtk.main_quit }
window.border_width 10

# Create a vertical box to pack the horizontal boxes into.
vbox = Gtk::VBox.new(false, 0)
window.add vbox

case which
    when '1'
        label = Gtk::Label.new "Gtk::HBox.new false, 0"
        vbox.pack_start label, false, false, 0

        hbox = make_box false, 0, false, false, 0
        vbox.pack_start hbox, false, false, 0

        hbox = make_box false, 0, true, false, 0
        vbox.pack_start hbox, false, false, 0

        hbox = make_box false, 0, true, true, 0
        vbox.pack_start hbox, false, false, 0


        separator = Gtk::HSeparator.new
        vbox.pack_start separator, false, true, 5


        label = Gtk::Label.new "Gtk::HBox.new true, 0"
        vbox.pack_start label, false, false, 0
                             
        hbox = make_box true, 0, true, false, 0
        vbox.pack_start hbox, false, false, 0

        hbox = make_box true, 0, true, true, 0
        vbox.pack_start hbox, false, false, 0

        separator = Gtk::HSeparator.new
        vbox.pack_start separator, false, true, 5

    when '2'
        label = Gtk::Label.new "Gtk::HBox false, 10"
        vbox.pack_start label, false, false, 0

        hbox = make_box false, 10, true, false, 0
        vbox.pack_start hbox, false, false, 0

        hbox = make_box false, 10, true, true, 0
        vbox.pack_start hbox, false, false, 0


        separator = Gtk::HSeparator.new
        vbox.pack_start separator, false, true, 5


        label = Gtk::Label.new 'Gtk::Hbox.new false, 0'
        vbox.pack_start label, false, false, 0

        hbox = make_box false, 0, true, false, 10
        vbox.pack_start hbox, false, false, 0

        hbox = make_box false, 0, true, true, 10
        vbox.pack_start hbox, false, false, 0


        separator = Gtk::HSeparator.new
        vbox.pack_start separator, false, true, 5


        label = Gtk::Label.new 'Gtk::Hbox.new false, 0'
        vbox.pack_start label, false, false, 0

        hbox = make_box false, 0, true, false, 10
        vbox.pack_start hbox, false, false, 0

        hbox = make_box false, 0, true, true, 10
        vbox.pack_start hbox, false, false, 0


        separator = Gtk::HSeparator.new
        vbox.pack_start separator, false, true, 5

    when '3'
        # This demonstrates how we can use pack_end to right-justify
        # widgets.  You will have to resize the window to see the
        # right justification.
        hbox = make_box false, 0, false, false, 0

        label = Gtk::Label.new("end")

        # Pack label into an hbox and pack the hbox into a vbox.
        hbox.pack_end label, false, false, 0
        vbox.pack_end hbox,  false, false, 0

        # Separator
        separator = Gtk::HSeparator.new
        vbox.pack_start separator, false, true, 5

    else
        puts "Argument '#{which}' is not an integer from 1 to 3"
end

window.show_all
Gtk.main