projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 120c3815 | 1 | #ifndef lint |
| 19f9784c | 2 | static char *sccsid = "@(#)wwcursor.c 3.2 83/09/14"; |
| 120c3815 EW |
3 | #endif |
| 4 | ||
| 5 | #include "ww.h" | |
| 6 | ||
| 7 | wwcursor(w, on) | |
| 8 | register struct ww *w; | |
| 9 | { | |
| 10 | register char *win; | |
| 11 | register r, c; | |
| 12 | ||
| 13 | if (on) { | |
| 14 | if (w->ww_hascursor) | |
| 15 | return; | |
| 16 | w->ww_hascursor = 1; | |
| 17 | } else { | |
| 18 | if (!w->ww_hascursor) | |
| 19 | return; | |
| 20 | w->ww_hascursor = 0; | |
| 21 | } | |
| 22 | if (wwcursormodes != 0) { | |
| 23 | win = &w->ww_win[w->ww_cur.r][w->ww_cur.c]; | |
| 24 | if (*win == 0) | |
| 25 | w->ww_nvis[w->ww_cur.r]--; | |
| 26 | else if (*win == wwcursormodes) | |
| 27 | w->ww_nvis[w->ww_cur.r]++; | |
| 28 | *win ^= wwcursormodes; | |
| 19f9784c EW |
29 | r = wwcurrow(w); |
| 30 | c = wwcurcol(w); | |
| 31 | if (r < w->ww_i.t || r >= w->ww_i.b | |
| 32 | || c < w->ww_i.l || c >= w->ww_i.r) | |
| 33 | return; | |
| 34 | if (wwsmap[r][c] == w->ww_index) { | |
| 35 | wwns[r][c].c_m ^= wwcursormodes; | |
| 36 | wwtouched[r] = 1; | |
| 37 | } | |
| 120c3815 EW |
38 | } |
| 39 | } |