patch 8.2.2803: flicker when the popup menu has an info popup
Problem: Flicker when the popup menu has an info popup.
Solution: Avoid drawing over the popup when it's going to be redrawn in the
same position. (closes #8131) Also avoid redrawing the scrollbar.
diff --git a/src/drawscreen.c b/src/drawscreen.c
index 4a716b2..bb0d887 100644
--- a/src/drawscreen.c
+++ b/src/drawscreen.c
@@ -93,6 +93,7 @@
int gui_cursor_row = 0;
#endif
int no_update = FALSE;
+ int save_pum_will_redraw = pum_will_redraw;
// Don't do anything if the screen structures are (not yet) valid.
if (!screen_valid(TRUE))
@@ -276,6 +277,11 @@
}
#endif
+ if (pum_redraw_in_same_position())
+ // Avoid flicker if the popup menu is going to be redrawn in the same
+ // position.
+ pum_will_redraw = TRUE;
+
// Go from top to bottom through the windows, redrawing the ones that need
// it.
#if defined(FEAT_SEARCH_EXTRA) || defined(FEAT_CLIPBOARD)
@@ -321,7 +327,9 @@
#if defined(FEAT_SEARCH_EXTRA)
end_search_hl();
#endif
+
// May need to redraw the popup menu.
+ pum_will_redraw = save_pum_will_redraw;
pum_may_redraw();
// Reset b_mod_set flags. Going through all windows is probably faster