80 lines
2.7 KiB
Diff
80 lines
2.7 KiB
Diff
Fix a bug that causes the cursor position to be incorrect when opening
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new terminals:
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http://lists.schmorp.de/pipermail/rxvt-unicode/2023q1/002639.html
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https://bugs.archlinux.org/task/77062
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https://gitlab.alpinelinux.org/alpine/aports/-/issues/14525
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This patches reverts all changes made to 'src/screen.C' in rxvt-unicode 9.31.
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--- rxvt-unicode-9.31/src/screen.C 2022-08-08 06:33:08.000000000 -0400
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+++ rxvt-unicode-9.30/src/screen.C 2021-07-02 23:55:47.000000000 -0400
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@@ -293,7 +293,6 @@
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int common_col = min (prev_ncol, ncol);
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- // resize swap_buf, blank drawn_buf
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for (int row = min (nrow, prev_nrow); row--; )
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{
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scr_blank_screen_mem (drawn_buf [row], DEFAULT_RSTYLE);
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@@ -307,7 +306,6 @@
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int pend = MOD (term_start + top_row , prev_total_rows);
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int q = total_rows; // rewrapped row
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-#if ENABLE_FRILLS
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if ((rewrap_always || top_row) && !rewrap_never)
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{
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// Re-wrap lines. This is rather ugly, possibly because I am too dumb
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@@ -389,35 +387,36 @@
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scr_blank_line (*qline, qline->l, ncol - qline->l, DEFAULT_RSTYLE);
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}
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while (p != pend && q > 0);
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+
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+ term_start = total_rows - nrow;
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+ top_row = q - term_start;
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+
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+ // make sure all terminal lines exist
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+ while (top_row > 0)
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+ scr_blank_screen_mem (ROW (--top_row), DEFAULT_RSTYLE);
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}
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else
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-#endif
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{
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- // wing, instead of wrap
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- screen.cur.row += nrow - prev_nrow;
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+ // if no scrollback exists (yet), wing, instead of wrap
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- do
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+ for (int row = min (nrow, prev_nrow); row--; )
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{
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- p = MOD (p - 1, prev_total_rows);
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- q--;
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+ line_t &src = prev_row_buf [MOD (term_start + row, prev_total_rows)];
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+ line_t &dst = row_buf [row];
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- copy_line (row_buf [q], prev_row_buf [p]);
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+ copy_line (dst, src);
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}
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- while (p != pend && q > 0);
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- }
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- term_start = total_rows - nrow;
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- top_row = q - term_start;
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+ for (int row = prev_nrow; row < nrow; row++)
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+ scr_blank_screen_mem (row_buf [row], DEFAULT_RSTYLE);
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- // make sure all terminal lines exist
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- while (top_row > 0)
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- scr_blank_screen_mem (ROW (--top_row), DEFAULT_RSTYLE);
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+ term_start = 0;
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+ }
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clamp_it (screen.cur.row, 0, nrow - 1);
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clamp_it (screen.cur.col, 0, ncol - 1);
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}
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- // ensure drawn_buf, swap_buf and terminal rows are all initialized
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for (int row = nrow; row--; )
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{
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if (!ROW (row).valid ()) scr_blank_screen_mem (ROW (row), DEFAULT_RSTYLE);
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