1 files changed, 23 insertions, 16 deletions

diff --git a/src/fringe.c b/src/fringe.c
index 1a130f428f3..62de5e5cdb6 100644
--- a/src/fringe.c
+++ b/src/fringe.c
@@ -1,6 +1,7 @@
 /* Fringe handling (split from xdisp.c).
-   Copyright (C) 1985,86,87,88,93,94,95,97,98,99,2000,01,02,03,04
-   Free Software Foundation, Inc.
+   Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1997,
+                 1998, 1999, 2000, 2000, 2001, 2002, 2003, 2004,
+                 2005 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -776,13 +777,14 @@ draw_window_fringes (w, no_fringe)
 
 
 /* Recalculate the bitmaps to show in the fringes of window W.
-   If FORCE_P is 0, only mark rows with modified bitmaps for update in
-   redraw_fringe_bitmaps_p; else mark all rows for update.  */
+   Only mark rows with modified bitmaps for update in redraw_fringe_bitmaps_p.
+
+   If KEEP_CURRENT_P is 0, update current_matrix too.  */
 
 int
-update_window_fringes (w, force_p)
+update_window_fringes (w, keep_current_p)
      struct window *w;
-     int force_p;
+     int keep_current_p;
 {
   struct glyph_row *row, *cur = 0;
   int yb = window_text_bottom_y (w);
@@ -848,7 +850,8 @@ update_window_fringes (w, force_p)
             {
               if (!done_top)
                 {
-                  if (MATRIX_ROW_START_CHARPOS (row) <= BUF_BEGV (XBUFFER (w->buffer)))
+                  if (MATRIX_ROW_START_CHARPOS (row) <= BUF_BEGV (XBUFFER (w->buffer))
+                      && !MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P (w, row))
                     row->indicate_bob_p = !NILP (boundary_top);
                   else
                     row->indicate_top_line_p = !NILP (arrow_top);
@@ -857,7 +860,8 @@ update_window_fringes (w, force_p)
 
               if (!done_bot)
                 {
-                  if (MATRIX_ROW_END_CHARPOS (row) >= BUF_ZV (XBUFFER (w->buffer)))
+                  if (MATRIX_ROW_END_CHARPOS (row) >= BUF_ZV (XBUFFER (w->buffer))
+                      && !MATRIX_ROW_PARTIALLY_VISIBLE_AT_BOTTOM_P (w, row))
                     row->indicate_eob_p = !NILP (boundary_bot), done_bot = 1;
                   else if (y + row->height >= yb)
                     row->indicate_bottom_line_p = !NILP (arrow_bot), done_bot = 1;
@@ -942,8 +946,7 @@ update_window_fringes (w, force_p)
       else
         right = NO_FRINGE_BITMAP;
 
-      if (force_p
-          || row->y != cur->y
+      if (row->y != cur->y
           || row->visible_height != cur->visible_height
           || row->ends_at_zv_p != cur->ends_at_zv_p
           || left != cur->left_fringe_bitmap
@@ -952,11 +955,15 @@ update_window_fringes (w, force_p)
           || right_face_id != cur->right_fringe_face_id
           || cur->redraw_fringe_bitmaps_p)
         {
-          redraw_p = row->redraw_fringe_bitmaps_p = cur->redraw_fringe_bitmaps_p = 1;
-          cur->left_fringe_bitmap = left;
-          cur->right_fringe_bitmap = right;
-          cur->left_fringe_face_id = left_face_id;
-          cur->right_fringe_face_id = right_face_id;
+          redraw_p = row->redraw_fringe_bitmaps_p = 1;
+          if (!keep_current_p)
+            {
+              cur->redraw_fringe_bitmaps_p = 1;
+              cur->left_fringe_bitmap = left;
+              cur->right_fringe_bitmap = right;
+              cur->left_fringe_face_id = left_face_id;
+              cur->right_fringe_face_id = right_face_id;
+            }
         }
 
       if (row->overlay_arrow_bitmap != cur->overlay_arrow_bitmap)
@@ -974,7 +981,7 @@ update_window_fringes (w, force_p)
         row[-1].redraw_fringe_bitmaps_p = cur[-1].redraw_fringe_bitmaps_p = 1;
     }
 
-  return redraw_p;
+  return redraw_p && !keep_current_p;
 }