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Annotation of 43BSD/usr.lib/libcurses/id_subwins.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)id_subwins.c       5.1 (Berkeley) 6/7/85";
                      9: #endif not lint
                     10: 
                     11: # include      "curses.ext"
                     12: 
                     13: /*
                     14:  * _id_subwins:
                     15:  *     Re-sync the pointers to _y for all the subwindows.
                     16:  *
                     17:  */
                     18: _id_subwins(orig)
                     19: register WINDOW        *orig;
                     20: {
                     21:        register WINDOW *win;
                     22:        register int    realy;
                     23:        register int    y, oy, x;
                     24: 
                     25:        realy = orig->_begy + orig->_cury;
                     26:        for (win = orig->_nextp; win != orig; win = win->_nextp) {
                     27:                /*
                     28:                 * If the window ends before our current position,
                     29:                 * don't need to do anything.
                     30:                 */
                     31:                if (win->_begy + win->_maxy <= realy)
                     32:                        continue;
                     33: 
                     34:                oy = orig->_cury;
                     35:                for (y = realy - win->_begy; y < win->_maxy; y++, oy++)
                     36:                        win->_y[y] = &orig->_y[oy][win->_ch_off];
                     37:        }
                     38: }

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