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Annotation of 43BSDReno/lib/libcurses/scroll.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[] = "@(#)scroll.c   5.4 (Berkeley) 6/1/90";
                     22: #endif /* not lint */
                     23: 
                     24: # include      "curses.ext"
                     25: 
                     26: /*
                     27:  *     This routine scrolls the window up a line.
                     28:  *
                     29:  */
                     30: scroll(win)
                     31: register  WINDOW       *win;
                     32: {
                     33:        register int    oy, ox;
                     34: 
                     35: # ifdef DEBUG
                     36:        fprintf(outf, "SCROLL(%0.2o)\n", win);
                     37: # endif
                     38: 
                     39:        if (!win->_scroll)
                     40:                return ERR;
                     41: 
                     42:        getyx(win, oy, ox);
                     43:        wmove(win, 0, 0);
                     44:        wdeleteln(win);
                     45:        wmove(win, oy, ox);
                     46: 
                     47:        if (win == curscr) {
                     48:                _putchar('\n');
                     49:                if (!NONL)
                     50:                        win->_curx = 0;
                     51: # ifdef DEBUG
                     52:                fprintf(outf, "SCROLL: win == curscr\n");
                     53: # endif
                     54:        }
                     55: }

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