\ mini-oof example
\ Copyright (C) 1998,2003 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation; either version 2
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
\ along with this program; if not, write to the Free Software
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
cell var text
cell var len
cell var x
cell var y
:noname ( o -- ) >r
r@ x @ r@ y @ at-xy r@ text @ r> len @ type ;
button defines draw
:noname ( addr u o -- ) >r
0 r@ x ! 0 r@ y ! r@ len ! r> text ! ;
button defines init
: bold 27 emit ." [1m" ;
: normal 27 emit ." [0m" ;
button class end-class bold-button
:noname bold [ button :: draw ] normal ; bold-button defines draw
\ Create and draw a button:
button new Constant foo
s" thin foo" foo init
bold-button new Constant bar
s" fat bar" bar init
1 bar y !