Class: Screen

Inherits:
Object
  • Object
show all
Defined in:
lib/mdisc/screen.rb

Overview

The curses library only provides limit functions. Thus we need to add more wrapper functions based on curses.

Instance Method Summary collapse

Constructor Details

#initialize(height = 25, width = 80) ⇒ Screen

Returns a new instance of Screen.



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# File 'lib/mdisc/screen.rb', line 7

def initialize(height = 25, width = 80)
  Curses.init_screen
  Curses.start_color
  Curses.cbreak
  Curses.stdscr.keypad(true)
  Curses.init_pair(1, Curses::COLOR_BLUE, Curses::COLOR_BLACK)
  Curses.init_pair(2, Curses::COLOR_CYAN, Curses::COLOR_BLACK)
  Curses.init_pair(3, Curses::COLOR_RED, Curses::COLOR_BLACK)
  Curses.init_pair(4, Curses::COLOR_MAGENTA, Curses::COLOR_BLACK)
  # height, width, top, left
  @draw = Curses::Window.new(height, width, 0, 0)
end

Instance Method Details

#clear(top, bottom) ⇒ Object 



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# File 'lib/mdisc/screen.rb', line 28

def clear(top, bottom)
  (top..bottom).each do |i|
    @draw.setpos(i, 0)
    @draw.clrtoeol
  end
end

#getch ⇒ Object 



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# File 'lib/mdisc/screen.rb', line 39

def getch
  @draw.getch
end

#getstr ⇒ Object 



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# File 'lib/mdisc/screen.rb', line 43

def getstr
  @draw.getstr
end

#line(y, x, string, num = 0) ⇒ Object 



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# File 'lib/mdisc/screen.rb', line 20

def line(y, x, string, num = 0)
  color = Curses.color_pair num
  @draw.setpos(y, x)
  @draw.clrtoeol
  @draw.attrset color
  @draw.addstr(strip_invalid(string))
end

#refresh ⇒ Object 



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# File 'lib/mdisc/screen.rb', line 35

def refresh
  @draw.refresh
end

#setpos(*args) ⇒ Object 



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# File 'lib/mdisc/screen.rb', line 47

def setpos(*args)
  @draw.setpos *args
end