* add or delete rows as appropriate
*/
- printf ("resize %d:%d => %d:%d\n", prev_nrow, prev_ncol, nrow, ncol);//D
-
rxvt_salloc *old_ta = talloc; talloc = new rxvt_salloc (ncol * sizeof (text_t));
rxvt_salloc *old_ra = ralloc; ralloc = new rxvt_salloc (ncol * sizeof (rend_t));
}
#endif
- drawn_buf = (line_t *) rxvt_realloc (drawn_buf, nrow * sizeof (line_t));
- temp_buf = (line_t *) rxvt_realloc (temp_buf , nrow * sizeof (line_t));
- swap_buf = (line_t *) rxvt_realloc (swap_buf , nrow * sizeof (line_t));
+ drawn_buf = (line_t *)rxvt_realloc (drawn_buf, nrow * sizeof (line_t));
+ temp_buf = (line_t *)rxvt_realloc (temp_buf , nrow * sizeof (line_t));
+ swap_buf = (line_t *)rxvt_realloc (swap_buf , nrow * sizeof (line_t));
for (int row = min (nrow, prev_nrow); row--; )
{
// re-wrap lines, this is rather ugly, possibly because I am too dumb
// to come up with a lean and mean algorithm.
- int p = MOD (term_start + nrow , prev_total_rows); // previous row
- int pend = MOD (term_start - nsaved, prev_total_rows);
+ int p = MOD (term_start + prev_nrow, prev_total_rows); // previous row
+ int pend = MOD (term_start - nsaved , prev_total_rows);
int q = total_rows; // rewrapped row
while (p != pend && q > 0)
{
p = MOD (p - 1, prev_total_rows);
-
+#ifdef DEBUG_STRICT
assert (old_buf [MOD (p, prev_total_rows)].t);
- assert (!old_buf [MOD (p, prev_total_rows)].is_longer ());
+#endif
int llen = old_buf [MOD (p, prev_total_rows)].l;
llen += prev_ncol;
}
- int qlines = llen / ncol + 1;
- int lofs = 0;
+ int qlines = max (0, (llen - 1) / ncol) + 1;
+
+ // drop partial lines completely
+ if (q < qlines)
+ break;
q -= qlines;
- int qrow = q;
+ int lofs = 0;
+ line_t *qline;
- for (; qlines--; qrow++)
+ // re-assemble the full line by destination lines
+ for (int qrow = q; qlines--; qrow++)
{
- if (qrow >= 0)
- {
- line_t &qline = row_buf [qrow];
+ qline = row_buf + qrow;
+ lalloc (*qline);
+ qline->set_is_longer ();
- lalloc (qline);
- qline.set_is_longer ();
+ int qcol = 0;
- int qcol = 0;
+ // fill a single destination line
+ while (lofs < llen && qcol < ncol)
+ {
+ int prow = lofs / prev_ncol;
+ int pcol = lofs % prev_ncol;
- for (;;)
- {
- int prow = lofs / prev_ncol + p;
- int pcol = lofs % prev_ncol;
+ line_t &pline = old_buf [MOD (p + prow, prev_total_rows)];
- line_t &pline = old_buf [p];
+ int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
- int len = min (min (prev_ncol - pcol, ncol - qcol), llen - lofs);
+ assert (len);
+ assert (pline.t);
- printf ("q %d lofs %d>%d len %d pq %d:%d p %d:%d q :%d\n", q, llen, lofs, len, prev_ncol, ncol, prow, pcol, qcol);
+ memcpy (qline->t + qcol, pline.t + pcol, len * sizeof (text_t));
+ memcpy (qline->r + qcol, pline.r + pcol, len * sizeof (rend_t));
- if (len <= 0)
- {
- qline.l = qcol;
- scr_blank_line (qline, qcol, ncol - qcol, DEFAULT_RSTYLE);
- break;
- }
+ lofs += len;
+ qcol += len;
+ }
+ }
- assert (lofs < 1000);
+ qline->l = llen < ncol ? llen : MOD (llen - 1, ncol) + 1;
+ scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);
+ }
- memcpy (qline.t + qcol, pline.t + pcol, len * sizeof (text_t));
- memcpy (qline.r + qcol, pline.r + pcol, len * sizeof (rend_t));
+ term_start = total_rows - nrow;
+ view_start = 0;
+ nsaved = term_start - q;
- lofs += len;
- qcol += len;
+ // make sure all terminal lines exist
+ while (nsaved < 0)
+ scr_blank_screen_mem (ROW (-++nsaved), DEFAULT_RSTYLE);
- if (qcol == ncol)
- break;
- }
- }
- else
- lofs += ncol;
- }
- }
+ for (int i = -nsaved; i < nrow; i++)
+ assert (ROW (i).t);//D
free (old_buf);
delete old_ta;
free (drawn_buf);
free (temp_buf);
free (tabs);
+
+ row_buf = 0; // signal that we freed all the arrays
}
/* ------------------------------------------------------------------------- */
#ifdef DEBUG_STRICT
assert (s->cur.row >= 0);
assert (s->cur.col >= 0);
-#else /* drive with your eyes closed */
- max_it (s->cur.row, 0);
- max_it (s->cur.col, 0);
#endif
}
assert (screen.cur.col < last_col);
assert (screen.cur.row < nrow
&& screen.cur.row >= -nsaved);
-#else /* drive with your eyes closed */
- min_it (screen.cur.col, last_col - 1);
- clamp_it (screen.cur.row, -nsaved, nrow - 1);
#endif
row = screen.cur.row;
#ifdef DEBUG_STRICT
assert (screen.cur.row >= 0);
-#else /* drive with your eyes closed */
- max_it (screen.cur.row, 0);
#endif
}
}
#endif
-#ifdef DEBUG_STRICT
-#if 0
- // that's not debugging //TODO //FIXME
- clamp_it (x, 0, width);
- clamp_it (y, 0, height);
-#endif
-#endif
-
/* round down */
rc[PART_BEG].col = Pixel2Col (x);
rc[PART_BEG].row = Pixel2Row (y);