widget: Fix invalidation with scrolling region

In some special case involving a scrolling region, the wrong part
of the display was invalidated.

https://gitlab.gnome.org/GNOME/vte/issues/131

1 files changed, 2 insertions, 1 deletions

diff --git a/src/vte.cc b/src/vte.cc
index cd9a565e..920ab7e9 100644
--- a/src/vte.cc
+++ b/src/vte.cc
@@ -2694,7 +2694,8 @@ Terminal::cursor_down(bool explicit_sequence)
                                 ring_insert(m_screen->cursor.row, false);
 				/* Force the areas below the region to be
 				 * redrawn -- they've moved. */
-                                invalidate_rows(start, end);
+                                invalidate_rows(m_screen->cursor.row,
+                                                m_screen->insert_delta + m_row_count - 1);
 				/* Force scroll. */
 				adjust_adjustments();
 			} else {