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\ 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
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