diff options
Diffstat (limited to 'interface')
| -rw-r--r-- | interface/ncurses.rb | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/interface/ncurses.rb b/interface/ncurses.rb new file mode 100644 index 00000000..0d2659e4 --- /dev/null +++ b/interface/ncurses.rb @@ -0,0 +1,182 @@ +require 'ncurses' + +module Interface + def self.keytable(key) + case key + when 12 + '<redraw>' + when ?\n + '<cr>' + when ?\b, Ncurses::KEY_BACKSPACE + '<bs>' + when ?\e + '<esc>' + when ?\t + '<tab>' + when 32 + ' ' + when 0..127 + key.chr + else + '' + 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.cbreak + Ncurses.noecho + Ncurses.curs_set 0 + Ncurses.halfdelay(1000) + @@colortable = [] + end + + def closei + Ncurses.echo + Ncurses.cbreak + Ncurses.curs_set 1 + Ncurses.endwin + end + + def geti + Interface::keytable(Ncurses.getch) + end + + def set_title(x) +# closei + print "\e]2;#{x}\007" +# system('echo', '-n', '-e', '"\e2;' + x + '\007"') +# starti + 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) + Ncurses.color_set(get_color(fg,bg), nil) + end + + def color_at y, x=0, len=-1, fg=-1, bg=-1 + if y < 0 then y += Ncurses.LINES end + Ncurses.mvchgat(y, x, len, 0, get_color(fg, bg), nil) + end + + def color_bold_at y, x=0, len=-1, fg=-1, bg=-1 + if y < 0 then y += Ncurses.LINES end + Ncurses.mvchgat(y, x, len, Ncurses::A_BOLD, get_color(fg, bg), nil) + end + + def color_reverse_at y, x=0, len=-1, fg=-1, bg=-1 + if y < 0 then y += Ncurses.LINES end + Ncurses.mvchgat(y, x, len, Ncurses::A_REVERSE, get_color(fg, bg), nil) + 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 |