[evince] [libview] Correctly compute the position of the annotation window

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 7950f00952243ce2d653068afb0ac1a370b5360a
Author: Jose Aliste <jose aliste gmail com>
Date:   Sun Jul 25 15:49:32 2010 -0400

    [libview] Correctly compute the position of the annotation window

 libview/ev-annotation-window.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/libview/ev-annotation-window.c b/libview/ev-annotation-window.c
index 6539fd4..cbed0f7 100644
--- a/libview/ev-annotation-window.c
+++ b/libview/ev-annotation-window.c
@@ -454,8 +454,8 @@ ev_annotation_window_button_press_event (GtkWidget      *widget,
 
 	if (event->type == GDK_BUTTON_PRESS && event->button == 1) {
 		window->in_move = TRUE;
-		window->x = event->x;
-		window->y = event->y;
+		window->x = event->x_root - event->x;
+		window->y = event->y_root - event->y;
 		gtk_window_begin_move_drag (GTK_WINDOW (widget),
 					    event->button,
 					    event->x_root,