/*
* Look up the canonical ID for a queue
*/
Pipe::message_id Pipe::get_message_no(const std::string& func_name,
message_id msg) const
{
if(msg == DEFAULT_MESSAGE)
msg = default_msg();
else if(msg == LAST_MESSAGE)
msg = message_count() - 1;
if(msg >= message_count())
throw Invalid_Message_Number(func_name, msg);
return msg;
}
/*
* Get a particular output queue
*/
SecureQueue* Output_Buffers::get(Pipe::message_id msg) const
{
if(msg < m_offset)
return nullptr;
BOTAN_ASSERT(msg < message_count(), "Message number is in range");
return m_buffers[msg-m_offset];
}
/*
* Set the default read message
*/
void Pipe::set_default_msg(message_id msg)
{
if(msg >= message_count())
throw Invalid_Argument("Pipe::set_default_msg: msg number is too high");
default_read = msg;
}
/*
* Show previous messages to the user
*
* The screen format uses line 0 and 23 for headers and prompts,
* skips line 1 and 22, and uses line 2 thru 21 for old messages.
*
* This command shows you which commands you are viewing, and allows
* you to "search" for strings in the recall.
*
* Note that messages may be longer than 80 characters, but they are
* displayed using "infinite" length, with a special sub-command to
* "slide" the virtual display to the left or right.
*
* Attempt to only highlight the matching portions of the string.
*/
void do_cmd_messages(void)
{
ui_event ke;
bool more = TRUE;
int i, j, n, q;
int wid, hgt;
char shower[80] = "";
/* Total messages */
n = messages_num();
/* Start on first message */
i = 0;
/* Start at leftmost edge */
q = 0;
/* Get size */
Term_get_size(&wid, &hgt);
/* Save screen */
screen_save();
/* Process requests until done */
while (more)
{
/* Clear screen */
Term_clear();
/* Dump messages */
for (j = 0; (j < hgt - 4) && (i + j < n); j++)
{
const char *msg;
const char *str = message_str(i + j);
byte attr = message_color(i + j);
u16b count = message_count(i + j);
if (count == 1)
msg = str;
else
msg = format("%s <%dx>", str, count);
/* Apply horizontal scroll */
msg = ((int)strlen(msg) >= q) ? (msg + q) : "";
/* Dump the messages, bottom to top */
Term_putstr(0, hgt - 3 - j, -1, attr, msg);
/* Highlight "shower" */
if (shower[0])
{
str = msg;
/* Display matches */
while ((str = my_stristr(str, shower)) != NULL)
{
int len = strlen(shower);
/* Display the match */
Term_putstr(str-msg, hgt - 3 - j, len, TERM_YELLOW, str);
/* Advance */
str += len;
}
}
}
/* Display header */
prt(format("Message recall (%d-%d of %d), offset %d", i, i + j - 1, n, q), 0, 0);
/* Display prompt (not very informative) */
if (shower[0])
prt("[Movement keys to navigate, '-' for next, '=' to find]", hgt - 1, 0);
else
prt("[Movement keys to navigate, '=' to find, or ESCAPE to exit]", hgt - 1, 0);
/* Get a command */
ke = inkey_ex();
/* Scroll forwards or backwards using mouse clicks */
if (ke.type == EVT_MOUSE) {
if (ke.mouse.y <= hgt / 2) {
/* Go older if legal */
if (i + 20 < n)
i += 20;
} else {
/* Go newer */
i = (i >= 20) ? (i - 20) : 0;
}
} else if (ke.type == EVT_KBRD) {
switch (ke.key.code) {
case ESCAPE: {
more = FALSE;
break;
}
case '=': {
/* Get the string to find */
prt("Find: ", hgt - 1, 0);
if (!askfor_aux(shower, sizeof shower, NULL)) continue;
/* Set to find */
ke.key.code = '-';
break;
}
case ARROW_LEFT:
case '4':
q = (q >= wid / 2) ? (q - wid / 2) : 0;
break;
case ARROW_RIGHT:
case '6':
q = q + wid / 2;
break;
case ARROW_UP:
case '8':
if (i + 1 < n) i += 1;
break;
case ARROW_DOWN:
case '2':
case '\r':
case '\n':
i = (i >= 1) ? (i - 1) : 0;
break;
case KC_PGUP:
case 'p':
case ' ':
if (i + 20 < n) i += 20;
break;
case KC_PGDOWN:
case 'n':
i = (i >= 20) ? (i - 20) : 0;
break;
}
}
/* Find the next item */
if (ke.key.code == '-' && shower[0])
{
s16b z;
/* Scan messages */
for (z = i + 1; z < n; z++)
{
/* Search for it */
if (my_stristr(message_str(z), shower))
{
/* New location */
i = z;
/* Done */
break;
}
}
}
}
/* Load screen */
screen_load();
}