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Diffstat (limited to 'share/examples/bootforth/frames.4th')
-rw-r--r-- | share/examples/bootforth/frames.4th | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/share/examples/bootforth/frames.4th b/share/examples/bootforth/frames.4th new file mode 100644 index 000000000000..9895a74466be --- /dev/null +++ b/share/examples/bootforth/frames.4th @@ -0,0 +1,90 @@ +\ 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 ! |