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bug#16856: 24.3.50; Cursor leaves garbage in fringe


From: David Reitter
Subject: bug#16856: 24.3.50; Cursor leaves garbage in fringe
Date: Sun, 17 Jul 2016 15:57:39 +0900

I don’t think that bea0f95 (May 21, nsterm.m) fully fixed this problem.  I’ve had several “appearances” of the ominous garbage in the right fringe yesterday.

This was after applying your patch (and removing my workaround).

The workaround is shown below, but at the time it only worked with cursor-type (bar . 2), not (bar . 3).  I haven’t checked with your change.







diff --git a/src/xdisp.c b/src/xdisp.c
index b43ce61..389fea7 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -2018,6 +2018,13 @@ get_glyph_string_clip_rects (struct glyph_string *s, NativeRectangle *rects, int
       /* This is a text line that may be partially visible.  */
       r.x = window_box_left (s->w, s->area);
       r.width = window_box_width (s->w, s->area);
+
+      /* Aquamacs workaround - Because the cursor is drawn without limiting focus to the
+        window box, but it is removed by writing glyph and nothing into the right margin,
+        while focus is applied to the window box, parts of the cursor may remain visible.
+        This is a stop-gap measure that fails if the cursor is (bar . 3) or wider. */
+      r.width += 1;
+
       r.height = s->row->visible_height;
     }


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