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Fix redisplay of overlay-arrows on GUI frames

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* src/xdisp.c (try_window_reusing_current_matrix)
(try_cursor_movement): Disallow these optimizations if the buffer
has overlay arrow(s) shown on the fringe(s).  (Bug#29198)
This commit is contained in:
Eli Zaretskii 2017-11-09 18:22:42 +02:00
parent 0da08f2f8e
commit 9dde8be9cd
1 changed files with 9 additions and 3 deletions
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12
src/xdisp.c
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@ -16066,8 +16066,10 @@ try_cursor_movement (Lisp_Object window, struct text_pos startp,
since the handling of this_line_start_pos, etc., in redisplay
handles the same cases. */
&& !EQ (window, minibuf_window)
&& (FRAME_WINDOW_P (f)
|| !overlay_arrow_in_current_buffer_p ()))
/* When overlay arrow is shown in current buffer, point movement
is no longer "simple", as it typically causes the overlay
arrow to move as well. */
&& !overlay_arrow_in_current_buffer_p ())
{
int this_scroll_margin, top_scroll_margin;
struct glyph_row *row = NULL;
@ -17698,7 +17700,11 @@ try_window_reusing_current_matrix (struct window *w)
/* Don't try to reuse the display if windows have been split
or such. */
|| windows_or_buffers_changed
|| f->cursor_type_changed)
|| f->cursor_type_changed
/* This function cannot handle buffers where the overlay arrow
is shown on the fringes, because if the arrow position
changes, we cannot just reuse the current matrix. */
|| overlay_arrow_in_current_buffer_p ())
return false;
/* Can't do this if showing trailing whitespace. */