Curses

Module deprecated or moved

This module is deprecated or moved on the latest stable version. The last existing version (v1_9_3_392) is shown here.

Description

An implementation of the CRT screen handling and optimization library.

Structures and such

Classes

• Curses::Window - class with the means to draw a window or box

• Curses::MouseEvent - class for collecting mouse events

Modules

Examples

• hello.rb

  #!/usr/local/bin/ruby
  require "curses"
  include Curses 
  def show_message(message)
   width = message.length + 6
   win = Window .new(5, width,
   (lines  - 5) / 2, (cols  - width) / 2)
   win.box(?|, ?-)
   win.setpos (2, 3)
   win.addstr (message)
   win.refresh 
   win.getch 
   win.close
  end
  init_screen 
  begin
   crmode 
  # show_message("Hit any key")
   setpos ((lines  - 5) / 2, (cols  - 10) / 2)
   addstr ("Hit any key")
   refresh 
   getch 
   show_message("Hello, World!")
   refresh 
  ensure
   close_screen 
  end
  

• rain.rb

  #!/usr/local/bin/ruby
  # rain for a curses test
  require "curses"
  include Curses 
  def onsig(sig)
   close_screen 
   exit sig
  end
  def ranf
   rand(32767).to_f / 32767
  end
  # main #
  for i in 1 .. 15 # SIGHUP .. SIGTERM
   if trap(i, "SIG_IGN") != 0 then # 0 for SIG_IGN
   trap(i) {|sig| onsig(sig) }
   end
  end
  init_screen 
  nl 
  noecho 
  srand
  xpos = {}
  ypos = {}
  r = lines  - 4
  c = cols  - 4
  for i in 0 .. 4
   xpos[i] = (c * ranf).to_i + 2
   ypos[i] = (r * ranf).to_i + 2
  end
  i = 0
  while TRUE
   x = (c * ranf).to_i + 2
   y = (r * ranf).to_i + 2
   setpos (y, x); addstr (".")
   setpos (ypos[i], xpos[i]); addstr ("o")
   i = if i == 0 then 4 else i - 1 end
   setpos (ypos[i], xpos[i]); addstr ("O")
   i = if i == 0 then 4 else i - 1 end
   setpos (ypos[i] - 1, xpos[i]); addstr ("-")
   setpos (ypos[i], xpos[i] - 1); addstr ("|.|")
   setpos (ypos[i] + 1, xpos[i]); addstr ("-")
   i = if i == 0 then 4 else i - 1 end
   setpos (ypos[i] - 2, xpos[i]); addstr ("-")
   setpos (ypos[i] - 1, xpos[i] - 1); addstr ("/ \\")
   setpos (ypos[i], xpos[i] - 2); addstr ("| O |")
   setpos (ypos[i] + 1, xpos[i] - 1); addstr ("\\ /")
   setpos (ypos[i] + 2, xpos[i]); addstr ("-")
   i = if i == 0 then 4 else i - 1 end
   setpos (ypos[i] - 2, xpos[i]); addstr ("")
   setpos (ypos[i] - 1, xpos[i] - 1); addstr ("")
   setpos (ypos[i], xpos[i] - 2); addstr ("")
   setpos (ypos[i] + 1, xpos[i] - 1); addstr ("")
   setpos (ypos[i] + 2, xpos[i]); addstr ("")
   xpos[i] = x
   ypos[i] = y
   refresh 
   sleep(0.5)
  end
  # end of main

Related methods