freebsd-dev/stand/forth/frames.4th
Toomas Soome 56758831fe loader: use teken teminal emulator for x86 and uefi
Replace mini cons25 emulator with teken, this does enable us proper console
terminal for loader and will make it possible to implement different
back end callbacks to draw to screen.

At this time we still only "draw" in text mode.
2019-09-05 22:15:50 +00:00

143 lines
3.6 KiB
Forth

\ Copyright (c) 2003 Scott Long <scottl@FreeBSD.org>
\ Copyright (c) 2012-2015 Devin Teske <dteske@FreeBSD.org>
\ All rights reserved.
\
\ Redistribution and use in source and binary forms, with or without
\ modification, are permitted provided that the following conditions
\ are met:
\ 1. Redistributions of source code must retain the above copyright
\ notice, this list of conditions and the following disclaimer.
\ 2. Redistributions in binary form must reproduce the above copyright
\ notice, this list of conditions and the following disclaimer in the
\ documentation and/or other materials provided with the distribution.
\
\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
\ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
\ SUCH DAMAGE.
\
\ $FreeBSD$
marker task-frames.4th
vocabulary frame-drawing
only forth also frame-drawing definitions
\ XXX Filled boxes are left as an exercise for the reader... ;-/
variable h_el
variable v_el
variable lt_el
variable lb_el
variable rt_el
variable rb_el
variable fill
\ ASCII frames (used when serial console is detected)
45 constant ascii_dash
61 constant ascii_equal
124 constant ascii_pipe
43 constant ascii_plus
\ Single frames
0x2500 constant sh_el
0x2502 constant sv_el
0x250c constant slt_el
0x2514 constant slb_el
0x2510 constant srt_el
0x2518 constant srb_el
\ Double frames
0x2550 constant dh_el
0x2551 constant dv_el
0x2554 constant dlt_el
0x255a constant dlb_el
0x2557 constant drt_el
0x255d constant drb_el
\ Fillings
0 constant fill_none
32 constant fill_blank
0x2591 constant fill_dark
0x2592 constant fill_med
0x2593 constant fill_bright
only forth definitions also frame-drawing
: hline ( len x y -- ) \ Draw horizontal single line
at-xy \ move cursor
0 do
h_el @ xemit
loop
;
: f_ascii ( -- ) ( -- ) \ set frames to ascii
ascii_dash h_el !
ascii_pipe v_el !
ascii_plus lt_el !
ascii_plus lb_el !
ascii_plus rt_el !
ascii_plus rb_el !
;
: f_single ( -- ) \ set frames to single
boot_serial? if f_ascii exit then
sh_el h_el !
sv_el v_el !
slt_el lt_el !
slb_el lb_el !
srt_el rt_el !
srb_el rb_el !
;
: f_double ( -- ) \ set frames to double
boot_serial? if
f_ascii
ascii_equal h_el !
exit
then
dh_el h_el !
dv_el v_el !
dlt_el lt_el !
dlb_el lb_el !
drt_el rt_el !
drb_el rb_el !
;
: vline ( len x y -- ) \ Draw vertical single line
2dup 4 pick
0 do
at-xy
v_el @ xemit
1+
2dup
loop
2drop 2drop drop
;
: box ( w h x y -- ) \ Draw a box
2dup 1+ 4 pick 1- -rot
vline \ Draw left vert line
2dup 1+ swap 5 pick + swap 4 pick 1- -rot
vline \ Draw right vert line
2dup swap 1+ swap 5 pick 1- -rot
hline \ Draw top horiz line
2dup swap 1+ swap 4 pick + 5 pick 1- -rot
hline \ Draw bottom horiz line
2dup at-xy lt_el @ xemit \ Draw left-top corner
2dup 4 pick + at-xy lb_el @ xemit \ Draw left bottom corner
2dup swap 5 pick + swap at-xy rt_el @ xemit \ Draw right top corner
2 pick + swap 3 pick + swap at-xy rb_el @ xemit
2drop
;
f_single
fill_none fill !
only forth definitions