test256.rb

# Example ncurses program that should print all combinations of foreground
# color on background color but doesn't work.
# Make your terminal 256 characters wide for best view.

require 'rubygems'
require 'ncurses'

screen = Ncurses.initscr
Ncurses.noecho
Ncurses.cbreak
Ncurses.start_color

screen.addstr(Ncurses.COLORS.to_s)
screen.getch

Ncurses.curs_set 0
Ncurses.move 0, 0
Ncurses.clear
Ncurses.refresh
cc = Ncurses.COLORS
begin
color_count = 0
cc.times do |bg|
  cc.times do |fg|
    Ncurses.init_pair(color_count, fg, bg)
  screen.attron(Ncurses.COLOR_PAIR(color_count))
  screen.addstr("#")
  screen.attroff(Ncurses.COLOR_PAIR(color_count))
    color_count += 1
  end
  screen.addstr("== #{bg} ===\n")
  #if bg % 8 == 0
  #  Ncurses.refresh
    ch = screen.getch
    break if ch == ?q
    Ncurses.clear
    color_count = 0
  #end
end
=begin
color_count.times do |i|
  screen.attrset(Ncurses.COLOR_PAIR(i))
  screen.addstr("#")
end
=end
ensure
Ncurses.endwin
end