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Annotation of 43BSDReno/lib/libcurses/touchwin.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1981 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #ifndef lint
                     21: static char sccsid[] = "@(#)touchwin.c 5.4 (Berkeley) 6/1/90";
                     22: #endif /* not lint */
                     23: 
                     24: # include      "curses.ext"
                     25: 
                     26: /*
                     27:  * make it look like the whole window has been changed.
                     28:  *
                     29:  */
                     30: touchwin(win)
                     31: register WINDOW        *win;
                     32: {
                     33:        register int    y, maxy;
                     34: 
                     35: # ifdef        DEBUG
                     36:        fprintf(outf, "TOUCHWIN(%0.2o)\n", win);
                     37: # endif
                     38:        maxy = win->_maxy;
                     39:        for (y = 0; y < maxy; y++)
                     40:                touchline(win, y, 0, win->_maxx - 1);
                     41: }
                     42: 
                     43: /*
                     44:  * touch a given line
                     45:  */
                     46: touchline(win, y, sx, ex)
                     47: register WINDOW        *win;
                     48: register int   y, sx, ex;
                     49: {
                     50: # ifdef DEBUG
                     51:        fprintf(outf, "TOUCHLINE(%0.2o, %d, %d, %d)\n", win, y, sx, ex);
                     52:        fprintf(outf, "TOUCHLINE:first = %d, last = %d\n", win->_firstch[y], win->_lastch[y]);
                     53: # endif
                     54:        sx += win->_ch_off;
                     55:        ex += win->_ch_off;
                     56:        if (win->_firstch[y] == _NOCHANGE) {
                     57:                win->_firstch[y] = sx;
                     58:                win->_lastch[y] = ex;
                     59:        }
                     60:        else {
                     61:                if (win->_firstch[y] > sx)
                     62:                        win->_firstch[y] = sx;
                     63:                if (win->_lastch[y] < ex)
                     64:                        win->_lastch[y] = ex;
                     65:        }
                     66: # ifdef        DEBUG
                     67:        fprintf(outf, "TOUCHLINE:first = %d, last = %d\n", win->_firstch[y], win->_lastch[y]);
                     68: # endif
                     69: }

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