it might be a nice touch to change to a suitable cursor if you are using middle-click + stick to scroll. This patch almost gets it right. It doesn't work for textviews, unfortunately, because those set a cursor on their own window.

Also missing: some certain way to remove the cursor, either install a short timeout for that, or listen for grab_notify.


diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index a56844f..6215958 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -1249,9 +1249,28 @@ captured_event_cb (GtkWidget *widget,
       scroll_history_push (sw, &event->scroll);
 
       if (event->scroll.direction == GDK_SCROLL_SMOOTH &&
+          (strstr (gdk_device_get_name (source_device), "TrackPoint") ||
+           strstr (gdk_device_get_name (source_device), "DualPoint Stick")))
+        {
+          GdkDisplay *display;
+          GdkWindow *window;
+          GdkCursor *cursor;
+
+          display = gtk_widget_get_display (widget);
+          window = gtk_widget_get_window (widget);
+          cursor = gdk_cursor_new_from_name (display, "all-scroll");
+          gdk_window_set_cursor (window, cursor);
+          g_object_unref (cursor);
+        }
+
+      if (event->scroll.direction == GDK_SCROLL_SMOOTH &&
           dx == 0 && dy == 0 &&
           scroll_history_finish (sw, &vel_x, &vel_y))
-        gtk_scrolled_window_decelerate (sw, vel_x, vel_y);
+        {
+          gdk_window_set_cursor (gtk_widget_get_window (widget), NULL);
+
+          gtk_scrolled_window_decelerate (sw, vel_x, vel_y);
+        }
 
       return GDK_EVENT_PROPAGATE;
     }