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patch 8.2.2803: flicker when the popup menu has an info popup

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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.
This commit is contained in:
Bram Moolenaar
2021-04-23 21:01:34 +02:00
parent a6aa16423f
commit e0c03c8e10
5 changed files with 43 additions and 10 deletions
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8
src/drawscreen.c
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@@ -93,6 +93,7 @@ update_screen(int type_arg)
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 @@ update_screen(int type_arg)
}
#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 @@ update_screen(int type_arg)
#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