xref: /freebsd/stand/lua/screen.lua (revision 088b4f5f323e73e5eb54b0e409b064ff5d46d221)
1*088b4f5fSWarner Losh--
2*088b4f5fSWarner Losh-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
3*088b4f5fSWarner Losh-- All rights reserved.
4*088b4f5fSWarner Losh--
5*088b4f5fSWarner Losh-- Redistribution and use in source and binary forms, with or without
6*088b4f5fSWarner Losh-- modification, are permitted provided that the following conditions
7*088b4f5fSWarner Losh-- are met:
8*088b4f5fSWarner Losh-- 1. Redistributions of source code must retain the above copyright
9*088b4f5fSWarner Losh--    notice, this list of conditions and the following disclaimer.
10*088b4f5fSWarner Losh-- 2. Redistributions in binary form must reproduce the above copyright
11*088b4f5fSWarner Losh--    notice, this list of conditions and the following disclaimer in the
12*088b4f5fSWarner Losh--    documentation and/or other materials provided with the distribution.
13*088b4f5fSWarner Losh--
14*088b4f5fSWarner Losh-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*088b4f5fSWarner Losh-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*088b4f5fSWarner Losh-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*088b4f5fSWarner Losh-- ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*088b4f5fSWarner Losh-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*088b4f5fSWarner Losh-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*088b4f5fSWarner Losh-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*088b4f5fSWarner Losh-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*088b4f5fSWarner Losh-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*088b4f5fSWarner Losh-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*088b4f5fSWarner Losh-- SUCH DAMAGE.
25*088b4f5fSWarner Losh--
26*088b4f5fSWarner Losh-- $FreeBSD$
27*088b4f5fSWarner Losh--
28*088b4f5fSWarner Losh
29*088b4f5fSWarner Loshlocal screen = {};
30*088b4f5fSWarner Losh
31*088b4f5fSWarner Loshlocal color = require("color");
32*088b4f5fSWarner Loshlocal core = require("core");
33*088b4f5fSWarner Losh
34*088b4f5fSWarner Loshfunction screen.clear()
35*088b4f5fSWarner Losh	if core.bootserial() then
36*088b4f5fSWarner Losh		return;
37*088b4f5fSWarner Losh	end
38*088b4f5fSWarner Losh	loader.printc("\027[H\027[J");
39*088b4f5fSWarner Loshend
40*088b4f5fSWarner Losh
41*088b4f5fSWarner Loshfunction screen.setcursor(x, y)
42*088b4f5fSWarner Losh	if core.bootserial() then
43*088b4f5fSWarner Losh		return;
44*088b4f5fSWarner Losh	end
45*088b4f5fSWarner Losh	loader.printc("\027["..y..";"..x.."H");
46*088b4f5fSWarner Loshend
47*088b4f5fSWarner Losh
48*088b4f5fSWarner Loshfunction screen.setforeground(c)
49*088b4f5fSWarner Losh	if color.disabled then
50*088b4f5fSWarner Losh		return c;
51*088b4f5fSWarner Losh	end
52*088b4f5fSWarner Losh	loader.printc("\027[3"..c.."m");
53*088b4f5fSWarner Loshend
54*088b4f5fSWarner Losh
55*088b4f5fSWarner Loshfunction screen.setbackground(c)
56*088b4f5fSWarner Losh	if color.disabled then
57*088b4f5fSWarner Losh		return c;
58*088b4f5fSWarner Losh	end
59*088b4f5fSWarner Losh	loader.printc("\027[4"..c.."m");
60*088b4f5fSWarner Loshend
61*088b4f5fSWarner Losh
62*088b4f5fSWarner Loshfunction screen.defcolor()
63*088b4f5fSWarner Losh	loader.printc(color.default());
64*088b4f5fSWarner Loshend
65*088b4f5fSWarner Losh
66*088b4f5fSWarner Loshfunction screen.defcursor()
67*088b4f5fSWarner Losh	if core.bootserial() then
68*088b4f5fSWarner Losh		return;
69*088b4f5fSWarner Losh	end
70*088b4f5fSWarner Losh	loader.printc("\027[25;0H");
71*088b4f5fSWarner Loshend
72*088b4f5fSWarner Losh
73*088b4f5fSWarner Loshreturn screen
74