* gtkutil.c (xg_update_scrollbar_pos): Call XClearWindow to clear

  "under" scroll bar when size/position changes.

2 files changed, 13 insertions, 65 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 07a247e2fd9..f3aa96bb1e5 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2004-05-03  Jan Dj,Ad(Brv  <jan.h.d@swipnet.se>
+
+        * gtkutil.c (xg_update_scrollbar_pos): Call XClearWindow to clear
+        "under" scroll bar when size/position changes.
+
 2004-05-03  Jason Rumney  <jasonr@gnu.org>
 
         * makefile.nt: Remove.
diff --git a/src/gtkutil.c b/src/gtkutil.c
index 4d0b50573f7..82d5135d2bc 100644
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -2760,18 +2760,16 @@ xg_update_scrollbar_pos (f, scrollbar_id, top, left, width, height,
   if (wscroll)
     {
       GtkWidget *wfixed = f->output_data.x->edit_widget;
-      int winextra = canon_width > width ? (canon_width - width) / 2 : 0;
-      int bottom = top + height;
 
-      gint slider_width;
-      int oldtop, oldleft, oldbottom;
-      GtkRequisition req;
+      gtk_container_set_reallocate_redraws (GTK_CONTAINER (wfixed), TRUE);
 
-      /* Get old values.  */
-      xg_find_top_left_in_fixed (wscroll, wfixed, &oldleft, &oldtop);
-      gtk_widget_size_request (wscroll, &req);
-      oldbottom = oldtop + req.height;
+      /* Move and resize to new values.  */
+      gtk_fixed_move (GTK_FIXED (wfixed), wscroll, left, top);
+      gtk_widget_set_size_request (wscroll, width, height);
 
+      /* Must force out update so changed scroll bars gets redrawn.  */
+      gdk_window_process_all_updates ();
+      
       /* Scroll bars in GTK has a fixed width, so if we say width 16, it
          will only be its fixed width (14 is default) anyway, the rest is
          blank.  We are drawing the mode line across scroll bars when
@@ -2799,62 +2797,7 @@ xg_update_scrollbar_pos (f, scrollbar_id, top, left, width, height,
          the scroll bar and the edge of the window and between the scroll
          bar and the fringe.  */
 
-      if (oldtop != -1 && oldleft != -1)
-        {
-          int gtkextral, gtkextrah;
-          int xl, xr, wbl, wbr;
-          int bottomdiff, topdiff;
-
-          gtk_widget_style_get (wscroll, "slider_width", &slider_width, NULL);
-          gtkextral = width > slider_width ? (width - slider_width) / 2 : 0;
-          gtkextrah = gtkextral ? (width - slider_width - gtkextral) : 0;
-
-          xl = real_left;
-          wbl = gtkextral + winextra;
-          wbr = gtkextrah + winextra;
-          xr = left + gtkextral + slider_width;
-          bottomdiff = abs (oldbottom - bottom);
-          topdiff = abs (oldtop - top);
-
-          if (oldleft != left)
-            {
-              gdk_window_clear_area (wfixed->window, xl, top, wbl, height);
-              gdk_window_clear_area (wfixed->window, xr, top, wbr, height);
-            }
-
-          if (oldtop > top)
-            {
-              gdk_window_clear_area (wfixed->window, xl, top, wbl, topdiff);
-              gdk_window_clear_area (wfixed->window, xr, top, wbr, topdiff);
-            }
-          else if (oldtop < top)
-            {
-              gdk_window_clear_area (wfixed->window, xl, oldtop, wbl, topdiff);
-              gdk_window_clear_area (wfixed->window, xr, oldtop, wbr, topdiff);
-            }
-
-          if (oldbottom > bottom)
-            {
-              gdk_window_clear_area (wfixed->window, xl, bottom, wbl,
-                                     bottomdiff);
-              gdk_window_clear_area (wfixed->window, xr, bottom, wbr,
-                                     bottomdiff);
-            }
-          else if (oldbottom < bottom)
-            {
-              gdk_window_clear_area (wfixed->window, xl, oldbottom, wbl,
-                                     bottomdiff);
-              gdk_window_clear_area (wfixed->window, xr, oldbottom, wbr,
-                                     bottomdiff);
-            }
-        }
-
-      /* Move and resize to new values.  */
-      gtk_fixed_move (GTK_FIXED (wfixed), wscroll, left, top);
-      gtk_widget_set_size_request (wscroll, width, height);
-      
-      /* Must force out update so changed scroll bars gets redrawn.  */
-      gdk_window_process_all_updates ();
+      XClearWindow (FRAME_X_DISPLAY (f), GTK_WIDGET_TO_X_WIN (wscroll));
 
       SET_FRAME_GARBAGED (f);
       cancel_mouse_face (f);