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Improve preserving X coordinate during scroll commands

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* src/window.c (window_scroll_pixel_based): Don't unnecessarily
move the iterator.  (Bug#53220)
This commit is contained in:
Eli Zaretskii 2022-01-13 14:21:10 +02:00
parent 50654cf0b1
commit 8ec475e558
1 changed files with 2 additions and 1 deletions
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3
src/window.c
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@ -5861,7 +5861,8 @@ window_scroll_pixel_based (Lisp_Object window, int n, bool whole, bool noerror)
/* We moved the window start towards ZV, so PT may be now
in the scroll margin at the top. */
move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS);
if (IT_CHARPOS (it) < PT)
move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS);
if (IT_CHARPOS (it) == PT
&& it.current_y >= this_scroll_margin
&& it.current_y <= last_y - WINDOW_TAB_LINE_HEIGHT (w)