/*
* Output a message to the top line of the screen.
*
* Break long messages into multiple pieces (40-72 chars).
*
* Allow multiple short messages to "share" the top line.
*
* Prompt the user to make sure he has a chance to read them.
*
* These messages are memorized for later reference (see above).
*
* We could do a "Term_fresh()" to provide "flicker" if needed.
*
* The global "msg_flag" variable can be cleared to tell us to "erase" any
* "pending" messages still on the screen, instead of using "msg_flush()".
* This should only be done when the user is known to have read the message.
*
* We must be very careful about using the "msg("%s", )" functions without
* explicitly calling the special "msg("%s", NULL)" function, since this may
* result in the loss of information if the screen is cleared, or if anything
* is displayed on the top line.
*
* Hack -- Note that "msg("%s", NULL)" will clear the top line even if no
* messages are pending.
*/
static void msg_print_aux(u16b type, const char *msg)
{
int n;
char *t;
char buf[1024];
byte color;
int w, h;
if (!Term)
return;
/* Obtain the size */
(void)Term_get_size(&w, &h);
/* Hack -- Reset */
if (!msg_flag) message_column = 0;
/* Message Length */
n = (msg ? strlen(msg) : 0);
/* Hack -- flush when requested or needed */
if (message_column && (!msg || ((message_column + n) > (w - 8))))
{
/* Flush */
msg_flush(message_column);
/* Forget it */
msg_flag = FALSE;
/* Reset */
message_column = 0;
}
/* No message */
if (!msg) return;
/* Paranoia */
if (n > 1000) return;
/* Memorize the message (if legal) */
if (character_generated && !(p_ptr->is_dead))
message_add(msg, type);
/* Window stuff */
p_ptr->redraw |= (PR_MESSAGE);
/* Copy it */
my_strcpy(buf, msg, sizeof(buf));
/* Analyze the buffer */
t = buf;
/* Get the color of the message */
color = message_type_color(type);
/* Split message */
while (n > w - 1)
{
char oops;
int check, split;
/* Default split */
split = w - 8;
/* Find the rightmost split point */
for (check = (w / 2); check < w - 8; check++)
if (t[check] == ' ') split = check;
/* Save the split character */
oops = t[split];
/* Split the message */
t[split] = '\0';
/* Display part of the message */
Term_putstr(0, 0, split, color, t);
/* Flush it */
msg_flush(split + 1);
/* Restore the split character */
t[split] = oops;
/* Insert a space */
t[--split] = ' ';
/* Prepare to recurse on the rest of "buf" */
t += split; n -= split;
}
/* Display the tail of the message */
Term_putstr(message_column, 0, n, color, t);
/* Remember the message */
msg_flag = TRUE;
/* Remember the position */
message_column += n + 1;
/* Send refresh event */
event_signal(EVENT_MESSAGE);
}
/**
* Output a message to the top line of the screen.
*
* Break long messages into multiple pieces (40-72 chars).
*
* Allow multiple short messages to "share" the top line.
*
* Prompt the user to make sure he has a chance to read them.
*
* These messages are memorized for later reference (see above).
*
* We could do a "Term_fresh()" to provide "flicker" if needed.
*
* The global "msg_flag" variable can be cleared to tell us to "erase" any
* "pending" messages still on the screen, instead of using "msg_flush()".
* This should only be done when the user is known to have read the message.
*
* We must be very careful about using the "msg("%s", )" functions without
* explicitly calling the special "msg("%s", NULL)" function, since this may
* result in the loss of information if the screen is cleared, or if anything
* is displayed on the top line.
*
* Hack -- Note that "msg("%s", NULL)" will clear the top line even if no
* messages are pending.
*/
void display_message(game_event_type unused, game_event_data *data, void *user)
{
int n;
char *t;
char buf[1024];
byte color;
int w, h;
int type;
const char *msg;
if (!data) return;
type = data->message.type;
msg = data->message.msg;
if (type == MSG_BELL || !msg || !Term || !character_generated)
return;
/* Obtain the size */
(void)Term_get_size(&w, &h);
/* Hack -- Reset */
if (!msg_flag) message_column = 0;
/* Message Length */
n = (msg ? strlen(msg) : 0);
/* Hack -- flush when requested or needed */
if (message_column && (!msg || ((message_column + n) > (w - 8)))) {
/* Flush */
msg_flush(message_column);
/* Forget it */
msg_flag = false;
/* Reset */
message_column = 0;
}
/* No message */
if (!msg) return;
/* Paranoia */
if (n > 1000) return;
/* Copy it */
my_strcpy(buf, msg, sizeof(buf));
/* Analyze the buffer */
t = buf;
/* Get the color of the message */
color = message_type_color(type);
/* Split message */
while (n > w - 1) {
char oops;
int check, split;
/* Default split */
split = w - 8;
/* Find the rightmost split point */
for (check = (w / 2); check < w - 8; check++)
if (t[check] == ' ') split = check;
/* Save the split character */
oops = t[split];
/* Split the message */
t[split] = '\0';
/* Display part of the message */
Term_putstr(0, 0, split, color, t);
/* Flush it */
msg_flush(split + 1);
/* Restore the split character */
t[split] = oops;
/* Insert a space */
t[--split] = ' ';
/* Prepare to recurse on the rest of "buf" */
t += split;
n -= split;
}
/* Display the tail of the message */
Term_putstr(message_column, 0, n, color, t);
/* Remember the message */
msg_flag = true;
/* Remember the position */
message_column += n + 1;
}
