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Avoid leaving traces of cursor when entering linum-mode.

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src/fringe.c (draw_fringe_bitmap_1): Don't reduce the width of the
 left fringe if the window has a left margin.  This avoids leaving
 traces of the cursor because its leftmost pixel is not drawn over.
This commit is contained in:
Eli Zaretskii 2012-09-09 23:10:36 +03:00
parent e99579563e
commit aba05ce9b6
2 changed files with 12 additions and 1 deletions
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4
src/ChangeLog
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@ -1,5 +1,9 @@
2012-09-09 Eli Zaretskii <eliz@gnu.org>
* fringe.c (draw_fringe_bitmap_1): Don't reduce the width of the
left fringe if the window has a left margin. This avoids leaving
traces of the cursor because its leftmost pixel is not drawn over.
* dispnew.c (update_window_line): When the left margin area of a
screen line is updated, set the redraw_fringe_bitmaps_p flag of
that screen line. (Bug#12277)

9
src/fringe.c
View file

@ -659,7 +659,14 @@ draw_fringe_bitmap_1 (struct window *w, struct glyph_row *row, int left_p, int o
{
/* If W has a vertical border to its left, don't draw over it. */
wd -= ((!WINDOW_LEFTMOST_P (w)
&& !WINDOW_HAS_VERTICAL_SCROLL_BAR (w))
&& !WINDOW_HAS_VERTICAL_SCROLL_BAR (w)
/* But don't reduce the fringe width if the window
has a left margin, because that means we are not
in danger of drawing over the vertical border,
and OTOH leaving out that one pixel leaves behind
traces of the cursor, if it was in column zero
before drawing non-empty margin area. */
&& NILP (w->left_margin_cols))
? 1 : 0);
p.bx = x - wd;
p.nx = wd;