From: Nathaniel Talbott <ntalbott@...>
Date: 2000-12-13T21:43:53+09:00
Subject: [ruby-talk:7142] Re: Gtk widget color

> >Thanks for the help, but unfortunately, it didn't work.
>
> Did you try yashi's code sample verbatim?

Ignore the man who's red in the face :) OK, I tried yashi's code verbatim,
and it worked. So, I modified it slightly to include what's not working for
me:

require 'gtk'

window = Gtk::Window.new

# create two Style for two different color.
# you can't modify style's color in signal handlers

red = Gtk::Style.new
blue = Gtk::Style.new

# make red be red, blue be blue
# I changed this to be STATE_PRELIGHT instead of STATE_NORMAL,
# which is the state corresponding to the progress bar's foreground

red.set_bg(Gtk::STATE_PRELIGHT, 65535, 0, 0)
blue.set_bg(Gtk::STATE_PRELIGHT, 0, 0, 65535)

# Add a half full progress bar, too

button = Gtk::Button.new 'Hello, World'
progressBar = Gtk::ProgressBar.new
progressBar.configure(5, 0, 10)

# Start 'em both as red (this works)

button.set_style red
progressBar.set_style red

bool = false
button.signal_connect('clicked') do
  if bool
    progressBar.set_style red
    button.set_style red
    bool = false
  else
    progressBar.set_style blue
    button.set_style blue
    bool = true
  end
  # don't forget to redraw so that the change show up
  button.queue_draw
  progressBar.queue_draw
end

window.signal_connect('delete-event') do
  Gtk.main_quit
end
window.border_width = 10
vbox = Gtk::VBox.new(false, 0)
vbox.pack_start(progressBar, false, false, 0)
vbox.pack_start(button, true, true, 0)
window.add vbox
window.show_all
Gtk.main


This works... for the button. The progress bar never changes from its
initial state of red, while the button toggles merrily back and forth. So,
is it a bug in Gtk? A bug in Ruby/Gtk? Does it work on Linux (I'm on W2K)?
I've searched around a bit looking for someone else having the same trouble,
and I can't seem to find anything. Ideas?


Nathaniel

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