File:  [gforth] / gforth / moof-exm.fs
Revision 1.3: download - view: text, annotated - select for diffs
Sun Mar 9 15:16:51 2003 UTC (16 years, 5 months ago) by anton
Branches: MAIN
CVS tags: v0-6-2, v0-6-1, v0-6-0, HEAD
updated copyright years

    1: \ mini-oof example
    2: 
    3: \ Copyright (C) 1998,2003 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21: \ usage:
   22: 
   23: object class
   24:   cell var text
   25:   cell var len
   26:   cell var x
   27:   cell var y
   28:   method init
   29:   method draw
   30: end-class button
   31: 
   32: :noname ( o -- ) >r
   33:  r@ x @ r@ y @ at-xy  r@ text @ r> len @ type ;
   34:  button defines draw
   35: :noname ( addr u o -- ) >r
   36:  0 r@ x ! 0 r@ y ! r@ len ! r> text ! ;
   37:  button defines init
   38: 
   39: \ interitance
   40: 
   41: : bold   27 emit ." [1m" ;
   42: : normal 27 emit ." [0m" ;
   43: 
   44: button class end-class bold-button
   45: :noname bold [ button :: draw ] normal ; bold-button defines draw
   46: 
   47: \ Create and draw a button:
   48: 
   49: button new Constant foo
   50: s" thin foo" foo init
   51: page
   52: foo draw
   53: bold-button new Constant bar
   54: s" fat bar" bar init
   55: 1 bar y !
   56: bar draw

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