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require 'ncurses'
module Interface
def self.keytable(key)
case key
when 12
'<redraw>'
when ?\n
'<cr>'
when ?\b, Ncurses::KEY_BACKSPACE
'<bs>'
when Ncurses::KEY_RIGHT
'<right>'
when Ncurses::KEY_LEFT
'<left>'
when Ncurses::KEY_UP
'<up>'
when Ncurses::KEY_DOWN
'<down>'
when ?\e
'<esc>'
# when ?\s
# '<space>'
when ?\t
'<tab>'
when 32
' '
when 0..127
key.chr
else
log(key)
''
end
end
# def key c#{{{
# case c
# when 12
# :redraw
# when ?\n
# :enter
# when ?\b, Ncurses::KEY_BACKSPACE
# :backspace
# when 32
# :space
# when ?\t
# :tab
# when Ncurses::KEY_BTAB
# :TAB
# when ?\e
# :escape
# when 0..127
# c
# when Ncurses::KEY_F1..Ncurses::KEY_F30
# ('F' + (c-Ncurses::KEY_F1+1).to_s).to_sym
# when Ncurses::KEY_HOME
# :home
# when Ncurses::KEY_END
# :end
# when Ncurses::KEY_RESIZE
# :resize
# when Ncurses::KEY_DC
# :delete
# when Ncurses::KEY_ENTER
# ?\n
# when Ncurses::KEY_RIGHT
# :right
# when Ncurses::KEY_LEFT
# :left
# when Ncurses::KEY_UP
# :up
# when Ncurses::KEY_DOWN
# :down
# when Ncurses::KEY_NPAGE
# :pagedown
# when Ncurses::KEY_PPAGE
# :pageup
# when Ncurses::KEY_IC
# :insert
# else
## c
# :error
# end
# end#}}}
def self.included(this)
@@window = Ncurses.initscr
starti
end
def starti
@@screen = Ncurses.stdscr
@@screen.keypad(true)
Ncurses.start_color
Ncurses.use_default_colors
Ncurses.noecho
Ncurses.curs_set 0
Ncurses.halfdelay(10000)
@@colortable = []
end
def closei
Ncurses.echo
Ncurses.cbreak
Ncurses.curs_set 1
Ncurses.endwin
end
def cleari
Ncurses.mvaddstr(0, 0, ' ' * (lines * cols))
end
def geti
Interface::keytable(Ncurses.getch)
end
def set_title(x)
print "\e]2;#{x}\b"
end
def lines
Ncurses.LINES
end
def cols
Ncurses.COLS
end
def movi(y=0, x=0)
y < 0 and y += lines
Ncurses.move(y, x)
end
def puti *args
case args.size
when 1
Ncurses.addstr(args[0].to_s)
when 2
if (y = args[0]) < 0 then y += Ncurses.LINES end
Ncurses.mvaddstr(y, 0, args[1].to_s)
when 3
if (y = args[0]) < 0 then y += Ncurses.LINES end
Ncurses.mvaddstr(y, args[1], args[2].to_s)
end
end
def color(fg = -1, bg = -1)
if OPTIONS['color']
Ncurses.color_set(get_color(fg,bg), nil)
end
end
def color_at y, x=0, len=-1, fg=-1, bg=-1
if OPTIONS['color']
if y < 0 then y += Ncurses.LINES end
Ncurses.mvchgat(y, x, len, 0, get_color(fg, bg), nil)
end
end
def color_bold_at y, x=0, len=-1, fg=-1, bg=-1
if OPTIONS['color']
if y < 0 then y += Ncurses.LINES end
Ncurses.mvchgat(y, x, len, Ncurses::A_BOLD, get_color(fg, bg), nil)
end
end
def color_reverse_at y, x=0, len=-1, fg=-1, bg=-1
if OPTIONS['color']
if y < 0 then y += Ncurses.LINES end
Ncurses.mvchgat(y, x, len, Ncurses::A_REVERSE, get_color(fg, bg), nil)
else
Ncurses.mvchgat(y, x, len, Ncurses::A_REVERSE, 0, nil)
end
end
# runi(:command => String/Array, :wait=>false)
# runi('ä́', 'b', 'c')
def runi(hash, *args)
wait = false
if Array === hash
command = hash
elsif String === hash
command = [hash, *args]
else
command = hash[:command] or return false
wait = hash[:wait] if hash.has_key? :wait
end
closei
system(*command)
gets if wait
starti
end
def get_color(fg, bg)
n = bg+2 + 9*(fg+2)
color = @@colortable[n]
unless color
# create a new pair
size = @@colortable.reject{|x| x.nil? }.size + 1
Ncurses::init_pair(size, fg, bg)
color = @@colortable[n] = size
end
return color
end
def bold(b = true)
if b
Ncurses.attron(Ncurses::A_BOLD)
else
Ncurses.attroff(Ncurses::A_BOLD)
end
end
def reverse(b = true)
if b
Ncurses.attron(Ncurses::A_REVERSE)
else
Ncurses.attroff(Ncurses::A_REVERSE)
end
end
end
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