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Annotation of 43BSDTahoe/usr.lib/libcurses/id_subwins.c, revision 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 the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: static char sccsid[] = "@(#)id_subwins.c       5.3 (Berkeley) 6/30/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: # include      "curses.ext"
        !            23: 
        !            24: /*
        !            25:  * _id_subwins:
        !            26:  *     Re-sync the pointers to _y for all the subwindows.
        !            27:  *
        !            28:  */
        !            29: _id_subwins(orig)
        !            30: register WINDOW        *orig;
        !            31: {
        !            32:        register WINDOW *win;
        !            33:        register int    realy;
        !            34:        register int    y, oy, x;
        !            35: 
        !            36:        realy = orig->_begy + orig->_cury;
        !            37:        for (win = orig->_nextp; win != orig; win = win->_nextp) {
        !            38:                /*
        !            39:                 * If the window ends before our current position,
        !            40:                 * don't need to do anything.
        !            41:                 */
        !            42:                if (win->_begy + win->_maxy <= realy)
        !            43:                        continue;
        !            44: 
        !            45:                oy = orig->_cury;
        !            46:                for (y = realy - win->_begy; y < win->_maxy; y++, oy++)
        !            47:                        win->_y[y] = &orig->_y[oy][win->_ch_off];
        !            48:        }
        !            49: }

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