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Improved readability of topline state management.

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This commit is contained in:
Bart House
2020-10-19 15:19:09 -07:00
parent 3a31587ca9
commit 7795d82be6
4 changed files with 45 additions and 34 deletions
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win/tty/wintty.c
+24 -19
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@@ -348,7 +348,7 @@ int sig_unused UNUSED;
new_status_window();
if (u.ux) {
i = ttyDisplay->toplin;
ttyDisplay->toplin = 0;
ttyDisplay->toplin = TOPLINE_EMPTY;
docrt();
bot();
ttyDisplay->toplin = i;
@@ -436,7 +436,7 @@ char **argv UNUSED;
/* set up tty descriptor */
ttyDisplay = (struct DisplayDesc *) alloc(sizeof (struct DisplayDesc));
ttyDisplay->toplin = 0;
ttyDisplay->toplin = TOPLINE_EMPTY;
ttyDisplay->rows = hgt;
ttyDisplay->cols = wid;
ttyDisplay->curx = ttyDisplay->cury = 0;
@@ -1652,12 +1652,12 @@ winid window;
switch (cw->type) {
case NHW_MESSAGE:
if (ttyDisplay->toplin) {
if (ttyDisplay->toplin != TOPLINE_EMPTY) {
home();
cl_end();
if (cw->cury)
docorner(1, cw->cury + 1);
ttyDisplay->toplin = 0;
ttyDisplay->toplin = TOPLINE_EMPTY;
}
break;
case NHW_STATUS:
@@ -2353,12 +2353,13 @@ boolean blocking; /* with ttys, all windows are blocking */
switch (cw->type) {
case NHW_MESSAGE:
if (ttyDisplay->toplin == 1) {
if (ttyDisplay->toplin == TOPLINE_NEED_MORE) {
more();
ttyDisplay->toplin = 1; /* more resets this */
ttyDisplay->toplin = TOPLINE_NEED_MORE; /* more resets this */
tty_clear_nhwindow(window);
/* nhassert(ttyDisplay->toplin == TOPLINE_EMPTY); */
} else
ttyDisplay->toplin = 0;
ttyDisplay->toplin = TOPLINE_EMPTY;
cw->curx = cw->cury = 0;
if (!cw->active)
iflags.window_inited = TRUE;
@@ -2366,8 +2367,8 @@ boolean blocking; /* with ttys, all windows are blocking */
case NHW_MAP:
end_glyphout();
if (blocking) {
if (!ttyDisplay->toplin)
ttyDisplay->toplin = 1;
if (ttyDisplay->toplin != TOPLINE_EMPTY)
ttyDisplay->toplin = TOPLINE_NEED_MORE;
tty_display_nhwindow(WIN_MESSAGE, TRUE);
return;
}
@@ -2397,7 +2398,7 @@ boolean blocking; /* with ttys, all windows are blocking */
cw->offx = 0;
if (cw->type == NHW_MENU)
cw->offy = 0;
if (ttyDisplay->toplin == 1)
if (ttyDisplay->toplin == TOPLINE_NEED_MORE)
tty_display_nhwindow(WIN_MESSAGE, TRUE);
#ifdef H2344_BROKEN
if (cw->maxrow >= (int) ttyDisplay->rows
@@ -2413,7 +2414,7 @@ boolean blocking; /* with ttys, all windows are blocking */
cl_eos();
} else
clear_screen();
ttyDisplay->toplin = 0;
ttyDisplay->toplin = TOPLINE_EMPTY;
} else {
if (WIN_MESSAGE != WIN_ERR)
tty_clear_nhwindow(WIN_MESSAGE);
@@ -2442,8 +2443,9 @@ winid window;
switch (cw->type) {
case NHW_MESSAGE:
if (ttyDisplay->toplin)
if (ttyDisplay->toplin != TOPLINE_EMPTY)
tty_display_nhwindow(WIN_MESSAGE, TRUE);
/* nhassert(ttyDisplay->toplin == TOPLINE_EMPTY); */
/*FALLTHRU*/
case NHW_STATUS:
case NHW_BASE:
@@ -3194,10 +3196,11 @@ const char *mesg;
response to a prompt, we'll assume that the display is up to date */
tty_putstr(WIN_MESSAGE, 0, mesg);
/* if `mesg' didn't wrap (triggering --More--), force --More-- now */
if (ttyDisplay->toplin == 1) {
if (ttyDisplay->toplin == TOPLINE_NEED_MORE) {
more();
ttyDisplay->toplin = 1; /* more resets this */
ttyDisplay->toplin = TOPLINE_NEED_MORE; /* more resets this */
tty_clear_nhwindow(WIN_MESSAGE);
/* nhassert(ttyDisplay->toplin == TOPLINE_EMPTY); */
}
/* normally <ESC> means skip further messages, but in this case
it means cancel the current prompt; any other messages should
@@ -3237,7 +3240,7 @@ tty_wait_synch()
(void) fflush(stdout);
} else if (ttyDisplay->inread > g.program_state.gameover) {
/* this can only happen if we were reading and got interrupted */
ttyDisplay->toplin = 3;
ttyDisplay->toplin = TOPLINE_SPECIAL_PROMPT;
/* do this twice; 1st time gets the Quit? message again */
(void) tty_doprev_message();
(void) tty_doprev_message();
@@ -3570,8 +3573,9 @@ tty_nhgetch()
i = '\033'; /* map NUL to ESC since nethack doesn't expect NUL */
else if (i == EOF)
i = '\033'; /* same for EOF */
if (ttyDisplay && ttyDisplay->toplin == 1)
ttyDisplay->toplin = 2;
/* topline has been seen - we can clear need for more */
if (ttyDisplay && ttyDisplay->toplin == TOPLINE_NEED_MORE)
ttyDisplay->toplin = TOPLINE_NON_EMPTY;
#ifdef TTY_TILES_ESCCODES
{
/* hack to force output of the window select code */
@@ -3613,8 +3617,9 @@ int *x UNUSED, *y UNUSED, *mod UNUSED;
i = ntposkey(x, y, mod);
if (!i && mod && (*mod == 0 || *mod == EOF))
i = '\033'; /* map NUL or EOF to ESC, nethack doesn't expect either */
if (ttyDisplay && ttyDisplay->toplin == 1)
ttyDisplay->toplin = 2;
/* topline has been seen - we can clear need for more */
if (ttyDisplay && ttyDisplay->toplin == TOPLINE_NEED_MORE)
ttyDisplay->toplin = TOPLINE_NON_EMPTY;
#else /* !WIN32CON */
i = tty_nhgetch();
#endif /* ?WIN32CON */