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-rw-r--r--share/examples/bootforth/frames.4th90
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diff --git a/share/examples/bootforth/frames.4th b/share/examples/bootforth/frames.4th
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-\ Words implementing frame drawing
-\ XXX Filled boxes are left as an exercise for the reader... ;-/
-\ $Id$
-
-marker task-frames.4th
-
-variable h_el
-variable v_el
-variable lt_el
-variable lb_el
-variable rt_el
-variable rb_el
-variable fill
-
-\ Single frames
-196 constant sh_el
-179 constant sv_el
-218 constant slt_el
-192 constant slb_el
-191 constant srt_el
-217 constant srb_el
-\ Double frames
-205 constant dh_el
-186 constant dv_el
-201 constant dlt_el
-200 constant dlb_el
-187 constant drt_el
-188 constant drb_el
-\ Fillings
-0 constant fill_none
-32 constant fill_blank
-176 constant fill_dark
-177 constant fill_med
-178 constant fill_bright
-
-
-: hline ( len x y -- ) \ Draw horizontal single line
- at-xy \ move cursor
- 0 do
- h_el @ emit
- loop
-;
-
-: f_single ( -- ) \ set frames to single
- 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
- 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 @ emit
- 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 @ emit \ Draw left-top corner
- 2dup 4 pick + at-xy lb_el @ emit \ Draw left bottom corner
- 2dup swap 5 pick + swap at-xy rt_el @ emit \ Draw right top corner
- 2 pick + swap 3 pick + swap at-xy rb_el @ emit
- 2drop
-;
-
-f_single
-fill_none fill !