Annotation of 43BSD/usr.lib/libcurses/touchwin.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[] = "@(#)touchwin.c 5.1 (Berkeley) 6/7/85";
                      9: #endif not lint
                     10: 
                     11: # include      "curses.ext"
                     12: 
                     13: /*
                     14:  * make it look like the whole window has been changed.
                     15:  *
                     16:  */
                     17: touchwin(win)
                     18: register WINDOW        *win;
                     19: {
                     20:        register int    y, maxy;
                     21: 
                     22: # ifdef        DEBUG
                     23:        fprintf(outf, "TOUCHWIN(%0.2o)\n", win);
                     24: # endif
                     25:        maxy = win->_maxy;
                     26:        for (y = 0; y < maxy; y++)
                     27:                touchline(win, y, 0, win->_maxx - 1);
                     28: }
                     29: 
                     30: /*
                     31:  * touch a given line
                     32:  */
                     33: touchline(win, y, sx, ex)
                     34: register WINDOW        *win;
                     35: register int   y, sx, ex;
                     36: {
                     37: # ifdef DEBUG
                     38:        fprintf(outf, "TOUCHLINE(%0.2o, %d, %d, %d)\n", win, y, sx, ex);
                     39:        fprintf(outf, "TOUCHLINE:first = %d, last = %d\n", win->_firstch[y], win->_lastch[y]);
                     40: # endif
                     41:        sx += win->_ch_off;
                     42:        ex += win->_ch_off;
                     43:        if (win->_firstch[y] == _NOCHANGE) {
                     44:                win->_firstch[y] = sx;
                     45:                win->_lastch[y] = ex;
                     46:        }
                     47:        else {
                     48:                if (win->_firstch[y] > sx)
                     49:                        win->_firstch[y] = sx;
                     50:                if (win->_lastch[y] < ex)
                     51:                        win->_lastch[y] = ex;
                     52:        }
                     53: # ifdef        DEBUG
                     54:        fprintf(outf, "TOUCHLINE:first = %d, last = %d\n", win->_firstch[y], win->_lastch[y]);
                     55: # endif
                     56: }

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