From: matthias@...
Date: 2006-09-26T16:12:32+09:00
Subject: Problem with TkMenu::add_cascade

Hi list,

i'm working on gui using ruby/tk.
Everything went fine (exept the poor documentation), but now i have a
problem with submenus. A small example-code to demonstrate the issue:

menu = TkMenu.new
menu.add_command('label' => 'Foo', 'command' => lambda { p "foo" })
sub = TkMenu.new
sub.add_command('label' => 'Bar', 'command' => lambda { p "bar" })
menu.add_cascade('label' => 'submenu', 'menu' => sub)

canvas = TkCanvas.new
canvas.bind('1') {|e| menu.popup e.x_root, e.y_root}
canvas.pack

Tk.mainloop

The code works nearly as expected, menu appears an has correct content.
If i click on "Foo", text "foo" is written to the console, but if i
click on
"Bar" nothing happens :(
Any idea what's going wrong?

Ruby: ruby 1.8.5 (2006-08-25) [i486-linux]
Linux: Linux version 2.6.12 (root@louipaz) (gcc version 3.3.6 (Debian
1:3.3.6-13))

thanks a lot,
Matthias