diff options
Diffstat (limited to 'Src/Modules/curses.c')
| -rw-r--r-- | Src/Modules/curses.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Src/Modules/curses.c b/Src/Modules/curses.c index de9173b9e..06ad463e1 100644 --- a/Src/Modules/curses.c +++ b/Src/Modules/curses.c @@ -51,9 +51,15 @@ #include <stdio.h> +enum zc_win_flags { + /* Scrolling enabled */ + ZCWF_SCROLL = 0x0001 +}; + typedef struct zc_win { WINDOW *win; char *name; + int flags; } *ZCWin; struct zcurses_namenumberpair { @@ -620,6 +626,49 @@ zccmd_attr(const char *nam, char **args) } +static int +zccmd_scroll(const char *nam, char **args) +{ + LinkNode node; + ZCWin w; + int ret = 0; + + node = zcurses_validate_window(args[0], ZCURSES_USED); + if (node == NULL) { + zwarnnam(nam, "%s: %s", zcurses_strerror(zc_errno), args[0]); + return 1; + } + + w = (ZCWin)getdata(node); + + if (!strcmp(args[1], "on")) { + if (scrollok(w->win, TRUE) == ERR) + return 1; + w->flags |= ZCWF_SCROLL; + } else if (!strcmp(args[1], "off")) { + if (scrollok(w->win, FALSE) == ERR) + return 1; + w->flags &= ~ZCWF_SCROLL; + } else { + char *endptr; + zlong sl = zstrtol(args[1], &endptr, 10); + if (*endptr) { + zwarnnam(nam, "scroll requires `on', `off' or integer: %s", + args[1]); + return 1; + } + if (!(w->flags & ZCWF_SCROLL)) + scrollok(w->win, TRUE); + if (wscrl(w->win, (int)sl) == ERR) + ret = 1; + if (!(w->flags & ZCWF_SCROLL)) + scrollok(w->win, FALSE); + } + + return ret; +} + + /********************* Main builtin handler *********************/ @@ -643,6 +692,7 @@ bin_zcurses(char *nam, char **args, Options ops, UNUSED(int func)) {"border", zccmd_border, 1, 1}, {"end", zccmd_endwin, 0, 0}, {"attr", zccmd_attr, 2, -1}, + {"scroll", zccmd_scroll, 2, 2}, {NULL, (zccmd_t)0, 0, 0} }; |