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Add scrolling input buffer

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This commit is contained in:
Aaron Cook 2022-03-19 16:20:52 -05:00
commit 34382d2a45
1 changed files with 21 additions and 2 deletions
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23
src/ingest.c
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@ -335,6 +335,7 @@ mode_normal(int ch)
}
ingest.history_pos--;
memset(ingest.inbuf, 0, sizeof(ingest.inbuf));
strcpy(ingest.inbuf, ingest.history[ingest.history_pos]);
ingest.inlen = strlen(ingest.inbuf);
ingest.inpos = ingest.inlen;
@ -346,11 +347,13 @@ mode_normal(int ch)
break;
} else if (ingest.history_pos == ingest.history_len - 1) { /* load back temp storage */
ingest.history_pos++;
memset(ingest.inbuf, 0, sizeof(ingest.inbuf));
strcpy(ingest.inbuf, ingest.tmp_history);
ingest.inlen = strlen(ingest.inbuf);
ingest.inpos = ingest.inlen;
} else {
ingest.history_pos++;
memset(ingest.inbuf, 0, sizeof(ingest.inbuf));
strcpy(ingest.inbuf, ingest.history[ingest.history_pos]);
ingest.inlen = strlen(ingest.inbuf);
ingest.inpos = ingest.inlen;
@ -599,6 +602,11 @@ static int
inbuf_load()
{
int cx, cy = -1;
int win_len = getmaxx(ingest.input) + 1;
size_t prepend_len = ingest.prepend ? strlen(ingest.prepend) : 0;
int buffer_len = win_len - prepend_len;
int start = ingest.inlen > (win_len + prepend_len) ?
(ingest.inlen - win_len - prepend_len - 1) : 0;
pthread_mutex_lock(ingest.term_lock);
@ -607,7 +615,18 @@ inbuf_load()
if (ingest.prepend)
wprintw(ingest.input, "%s", ingest.prepend);
for (int i = 0; i < ingest.inlen; i++) {
if (start > 0) {
waddch(ingest.input, '$');
start++;
}
if (start > ingest.inpos) {
start = ingest.inpos;
} else if ((start + buffer_len) < ingest.inpos) {
start = ingest.inpos - buffer_len;
}
for (int i = start; i < ingest.inlen; i++) {
if (i == ingest.inpos)
getyx(ingest.input, cy, cx);
waddch(ingest.input, ingest.inbuf[i]);
@ -797,7 +816,7 @@ static void
update_cmd_pg_status()
{
if (ingest.cmd_pgs_n > 0) {
bytenuts_set_status(STATUS_CMDPAGE, "pg.%d", ingest.cmd_pg_cur+1);
bytenuts_set_status(STATUS_CMDPAGE, "cmd pg.%d", ingest.cmd_pg_cur+1);
} else {
bytenuts_set_status(STATUS_CMDPAGE, "n/a");
}