[gnumeric] gnm-notebook.c: include a fixed copy of gtknotebook.c



commit f0d20079f83274daf52210aacbaac4ba4099e9bb
Author: Morten Welinder <terra gnome org>
Date:   Wed May 13 15:35:53 2009 -0400

    gnm-notebook.c: include a fixed copy of gtknotebook.c
---
 src/widgets/ChangeLog      |    5 +
 src/widgets/gnm-notebook.c | 8247 +++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 8234 insertions(+), 18 deletions(-)

diff --git a/src/widgets/ChangeLog b/src/widgets/ChangeLog
index 480baac..c857cc5 100644
--- a/src/widgets/ChangeLog
+++ b/src/widgets/ChangeLog
@@ -1,3 +1,8 @@
+2009-05-13  Morten Welinder  <terra gnome org>
+
+	* gnm-notebook.c: Add a copy of gtknotebook.c until that can be
+	fixed.  Fixes #580837.
+
 2009-05-06  Morten Welinder <terra gnome org>
 
 	* Release 1.9.7
diff --git a/src/widgets/gnm-notebook.c b/src/widgets/gnm-notebook.c
index 3d58e0f..1bdaf1a 100644
--- a/src/widgets/gnm-notebook.c
+++ b/src/widgets/gnm-notebook.c
@@ -1,7 +1,8 @@
 /**
- * gnm-notebook.h: Implements a button-only notebook.
+ * gnm-notebook.c: Implements a button-only notebook.
  *
  * Copyright (c) 2008 Morten Welinder <terra gnome org>
+ * Copyright notices for included gtknotebook.c, see below.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,6 +23,8233 @@
 #include "gnm-notebook.h"
 #include <gsf/gsf-impl-utils.h>
 
+#define USE_INTERNAL_COPY_OF_GTK_NOTEBOOK
+
+#ifdef USE_INTERNAL_COPY_OF_GTK_NOTEBOOK
+/*
+ * Yes, we really do include a copy of GtkNotebook here until #582488
+ * can be fixed.
+ */
+
+/* ========================================================================= */
+/* Marshallers for GggNotebook. */
+
+#ifdef G_ENABLE_DEBUG
+#define g_marshal_value_peek_boolean(v)  g_value_get_boolean (v)
+#define g_marshal_value_peek_char(v)     g_value_get_char (v)
+#define g_marshal_value_peek_uchar(v)    g_value_get_uchar (v)
+#define g_marshal_value_peek_int(v)      g_value_get_int (v)
+#define g_marshal_value_peek_uint(v)     g_value_get_uint (v)
+#define g_marshal_value_peek_long(v)     g_value_get_long (v)
+#define g_marshal_value_peek_ulong(v)    g_value_get_ulong (v)
+#define g_marshal_value_peek_int64(v)    g_value_get_int64 (v)
+#define g_marshal_value_peek_uint64(v)   g_value_get_uint64 (v)
+#define g_marshal_value_peek_enum(v)     g_value_get_enum (v)
+#define g_marshal_value_peek_flags(v)    g_value_get_flags (v)
+#define g_marshal_value_peek_float(v)    g_value_get_float (v)
+#define g_marshal_value_peek_double(v)   g_value_get_double (v)
+#define g_marshal_value_peek_string(v)   (char*) g_value_get_string (v)
+#define g_marshal_value_peek_param(v)    g_value_get_param (v)
+#define g_marshal_value_peek_boxed(v)    g_value_get_boxed (v)
+#define g_marshal_value_peek_pointer(v)  g_value_get_pointer (v)
+#define g_marshal_value_peek_object(v)   g_value_get_object (v)
+#else /* !G_ENABLE_DEBUG */
+/* WARNING: This code accesses GValues directly, which is UNSUPPORTED API.
+ *          Do not access GValues directly in your code. Instead, use the
+ *          g_value_get_*() functions
+ */
+#define g_marshal_value_peek_boolean(v)  (v)->data[0].v_int
+#define g_marshal_value_peek_char(v)     (v)->data[0].v_int
+#define g_marshal_value_peek_uchar(v)    (v)->data[0].v_uint
+#define g_marshal_value_peek_int(v)      (v)->data[0].v_int
+#define g_marshal_value_peek_uint(v)     (v)->data[0].v_uint
+#define g_marshal_value_peek_long(v)     (v)->data[0].v_long
+#define g_marshal_value_peek_ulong(v)    (v)->data[0].v_ulong
+#define g_marshal_value_peek_int64(v)    (v)->data[0].v_int64
+#define g_marshal_value_peek_uint64(v)   (v)->data[0].v_uint64
+#define g_marshal_value_peek_enum(v)     (v)->data[0].v_long
+#define g_marshal_value_peek_flags(v)    (v)->data[0].v_ulong
+#define g_marshal_value_peek_float(v)    (v)->data[0].v_float
+#define g_marshal_value_peek_double(v)   (v)->data[0].v_double
+#define g_marshal_value_peek_string(v)   (v)->data[0].v_pointer
+#define g_marshal_value_peek_param(v)    (v)->data[0].v_pointer
+#define g_marshal_value_peek_boxed(v)    (v)->data[0].v_pointer
+#define g_marshal_value_peek_pointer(v)  (v)->data[0].v_pointer
+#define g_marshal_value_peek_object(v)   (v)->data[0].v_pointer
+#endif /* !G_ENABLE_DEBUG */
+
+/* VOID:POINTER,UINT (gnm-marshalers.list:29) */
+static void
+ggg__VOID__POINTER_UINT (GClosure     *closure,
+                         GValue       *return_value G_GNUC_UNUSED,
+                         guint         n_param_values,
+                         const GValue *param_values,
+                         gpointer      invocation_hint G_GNUC_UNUSED,
+                         gpointer      marshal_data)
+{
+  typedef void (*GMarshalFunc_VOID__POINTER_UINT) (gpointer     data1,
+                                                   gpointer     arg_1,
+                                                   guint        arg_2,
+                                                   gpointer     data2);
+  register GMarshalFunc_VOID__POINTER_UINT callback;
+  register GCClosure *cc = (GCClosure*) closure;
+  register gpointer data1, data2;
+
+  g_return_if_fail (n_param_values == 3);
+
+  if (G_CCLOSURE_SWAP_DATA (closure))
+    {
+      data1 = closure->data;
+      data2 = g_value_peek_pointer (param_values + 0);
+    }
+  else
+    {
+      data1 = g_value_peek_pointer (param_values + 0);
+      data2 = closure->data;
+    }
+  callback = (GMarshalFunc_VOID__POINTER_UINT) (marshal_data ? marshal_data : cc->callback);
+
+  callback (data1,
+            g_marshal_value_peek_pointer (param_values + 1),
+            g_marshal_value_peek_uint (param_values + 2),
+            data2);
+}
+
+/* BOOLEAN:ENUM (gnm-marshalers.list:30) */
+static void
+ggg__BOOLEAN__ENUM (GClosure     *closure,
+                    GValue       *return_value G_GNUC_UNUSED,
+                    guint         n_param_values,
+                    const GValue *param_values,
+                    gpointer      invocation_hint G_GNUC_UNUSED,
+                    gpointer      marshal_data)
+{
+  typedef gboolean (*GMarshalFunc_BOOLEAN__ENUM) (gpointer     data1,
+                                                  gint         arg_1,
+                                                  gpointer     data2);
+  register GMarshalFunc_BOOLEAN__ENUM callback;
+  register GCClosure *cc = (GCClosure*) closure;
+  register gpointer data1, data2;
+  gboolean v_return;
+
+  g_return_if_fail (return_value != NULL);
+  g_return_if_fail (n_param_values == 2);
+
+  if (G_CCLOSURE_SWAP_DATA (closure))
+    {
+      data1 = closure->data;
+      data2 = g_value_peek_pointer (param_values + 0);
+    }
+  else
+    {
+      data1 = g_value_peek_pointer (param_values + 0);
+      data2 = closure->data;
+    }
+  callback = (GMarshalFunc_BOOLEAN__ENUM) (marshal_data ? marshal_data : cc->callback);
+
+  v_return = callback (data1,
+                       g_marshal_value_peek_enum (param_values + 1),
+                       data2);
+
+  g_value_set_boolean (return_value, v_return);
+}
+
+/* BOOLEAN:BOOLEAN (gnm-marshalers.list:31) */
+static void
+ggg__BOOLEAN__BOOLEAN (GClosure     *closure,
+                       GValue       *return_value G_GNUC_UNUSED,
+                       guint         n_param_values,
+                       const GValue *param_values,
+                       gpointer      invocation_hint G_GNUC_UNUSED,
+                       gpointer      marshal_data)
+{
+  typedef gboolean (*GMarshalFunc_BOOLEAN__BOOLEAN) (gpointer     data1,
+                                                     gboolean     arg_1,
+                                                     gpointer     data2);
+  register GMarshalFunc_BOOLEAN__BOOLEAN callback;
+  register GCClosure *cc = (GCClosure*) closure;
+  register gpointer data1, data2;
+  gboolean v_return;
+
+  g_return_if_fail (return_value != NULL);
+  g_return_if_fail (n_param_values == 2);
+
+  if (G_CCLOSURE_SWAP_DATA (closure))
+    {
+      data1 = closure->data;
+      data2 = g_value_peek_pointer (param_values + 0);
+    }
+  else
+    {
+      data1 = g_value_peek_pointer (param_values + 0);
+      data2 = closure->data;
+    }
+  callback = (GMarshalFunc_BOOLEAN__BOOLEAN) (marshal_data ? marshal_data : cc->callback);
+
+  v_return = callback (data1,
+                       g_marshal_value_peek_boolean (param_values + 1),
+                       data2);
+
+  g_value_set_boolean (return_value, v_return);
+}
+
+/* BOOLEAN:INT (gnm-marshalers.list:32) */
+static void
+ggg__BOOLEAN__INT (GClosure     *closure,
+                   GValue       *return_value G_GNUC_UNUSED,
+                   guint         n_param_values,
+                   const GValue *param_values,
+                   gpointer      invocation_hint G_GNUC_UNUSED,
+                   gpointer      marshal_data)
+{
+  typedef gboolean (*GMarshalFunc_BOOLEAN__INT) (gpointer     data1,
+                                                 gint         arg_1,
+                                                 gpointer     data2);
+  register GMarshalFunc_BOOLEAN__INT callback;
+  register GCClosure *cc = (GCClosure*) closure;
+  register gpointer data1, data2;
+  gboolean v_return;
+
+  g_return_if_fail (return_value != NULL);
+  g_return_if_fail (n_param_values == 2);
+
+  if (G_CCLOSURE_SWAP_DATA (closure))
+    {
+      data1 = closure->data;
+      data2 = g_value_peek_pointer (param_values + 0);
+    }
+  else
+    {
+      data1 = g_value_peek_pointer (param_values + 0);
+      data2 = closure->data;
+    }
+  callback = (GMarshalFunc_BOOLEAN__INT) (marshal_data ? marshal_data : cc->callback);
+
+  v_return = callback (data1,
+                       g_marshal_value_peek_int (param_values + 1),
+                       data2);
+
+  g_value_set_boolean (return_value, v_return);
+}
+
+/* VOID:ENUM (gnm-marshalers.list:33) */
+
+/* BOOLEAN:ENUM,BOOLEAN (gnm-marshalers.list:34) */
+static void
+ggg__BOOLEAN__ENUM_BOOLEAN (GClosure     *closure,
+                            GValue       *return_value G_GNUC_UNUSED,
+                            guint         n_param_values,
+                            const GValue *param_values,
+                            gpointer      invocation_hint G_GNUC_UNUSED,
+                            gpointer      marshal_data)
+{
+  typedef gboolean (*GMarshalFunc_BOOLEAN__ENUM_BOOLEAN) (gpointer     data1,
+                                                          gint         arg_1,
+                                                          gboolean     arg_2,
+                                                          gpointer     data2);
+  register GMarshalFunc_BOOLEAN__ENUM_BOOLEAN callback;
+  register GCClosure *cc = (GCClosure*) closure;
+  register gpointer data1, data2;
+  gboolean v_return;
+
+  g_return_if_fail (return_value != NULL);
+  g_return_if_fail (n_param_values == 3);
+
+  if (G_CCLOSURE_SWAP_DATA (closure))
+    {
+      data1 = closure->data;
+      data2 = g_value_peek_pointer (param_values + 0);
+    }
+  else
+    {
+      data1 = g_value_peek_pointer (param_values + 0);
+      data2 = closure->data;
+    }
+  callback = (GMarshalFunc_BOOLEAN__ENUM_BOOLEAN) (marshal_data ? marshal_data : cc->callback);
+
+  v_return = callback (data1,
+                       g_marshal_value_peek_enum (param_values + 1),
+                       g_marshal_value_peek_boolean (param_values + 2),
+                       data2);
+
+  g_value_set_boolean (return_value, v_return);
+}
+
+/* VOID:OBJECT,UINT (gnm-marshalers.list:35) */
+static void
+ggg__VOID__OBJECT_UINT (GClosure     *closure,
+                        GValue       *return_value G_GNUC_UNUSED,
+                        guint         n_param_values,
+                        const GValue *param_values,
+                        gpointer      invocation_hint G_GNUC_UNUSED,
+                        gpointer      marshal_data)
+{
+  typedef void (*GMarshalFunc_VOID__OBJECT_UINT) (gpointer     data1,
+                                                  gpointer     arg_1,
+                                                  guint        arg_2,
+                                                  gpointer     data2);
+  register GMarshalFunc_VOID__OBJECT_UINT callback;
+  register GCClosure *cc = (GCClosure*) closure;
+  register gpointer data1, data2;
+
+  g_return_if_fail (n_param_values == 3);
+
+  if (G_CCLOSURE_SWAP_DATA (closure))
+    {
+      data1 = closure->data;
+      data2 = g_value_peek_pointer (param_values + 0);
+    }
+  else
+    {
+      data1 = g_value_peek_pointer (param_values + 0);
+      data2 = closure->data;
+    }
+  callback = (GMarshalFunc_VOID__OBJECT_UINT) (marshal_data ? marshal_data : cc->callback);
+
+  callback (data1,
+            g_marshal_value_peek_object (param_values + 1),
+            g_marshal_value_peek_uint (param_values + 2),
+            data2);
+}
+
+/* OBJECT:OBJECT,INT,INT (gnm-marshalers.list:36) */
+static void
+ggg__OBJECT__OBJECT_INT_INT (GClosure     *closure,
+                             GValue       *return_value G_GNUC_UNUSED,
+                             guint         n_param_values,
+                             const GValue *param_values,
+                             gpointer      invocation_hint G_GNUC_UNUSED,
+                             gpointer      marshal_data)
+{
+  typedef GObject* (*GMarshalFunc_OBJECT__OBJECT_INT_INT) (gpointer     data1,
+                                                           gpointer     arg_1,
+                                                           gint         arg_2,
+                                                           gint         arg_3,
+                                                           gpointer     data2);
+  register GMarshalFunc_OBJECT__OBJECT_INT_INT callback;
+  register GCClosure *cc = (GCClosure*) closure;
+  register gpointer data1, data2;
+  GObject* v_return;
+
+  g_return_if_fail (return_value != NULL);
+  g_return_if_fail (n_param_values == 4);
+
+  if (G_CCLOSURE_SWAP_DATA (closure))
+    {
+      data1 = closure->data;
+      data2 = g_value_peek_pointer (param_values + 0);
+    }
+  else
+    {
+      data1 = g_value_peek_pointer (param_values + 0);
+      data2 = closure->data;
+    }
+  callback = (GMarshalFunc_OBJECT__OBJECT_INT_INT) (marshal_data ? marshal_data : cc->callback);
+
+  v_return = callback (data1,
+                       g_marshal_value_peek_object (param_values + 1),
+                       g_marshal_value_peek_int (param_values + 2),
+                       g_marshal_value_peek_int (param_values + 3),
+                       data2);
+
+  g_value_take_object (return_value, v_return);
+}
+
+/* VOID:ENUM (gnm-marshalers.list:29) */
+#define ggg__VOID__ENUM	g_cclosure_marshal_VOID__ENUM
+
+
+/* ========================================================================= */
+/* More or less a copy og gtknotebook.h */
+
+/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
+ */
+
+#ifndef __GGG_NOTEBOOK_H__
+#define __GGG_NOTEBOOK_H__
+
+
+#include <gdk/gdk.h>
+
+G_BEGIN_DECLS
+
+#define GGG_TYPE_NOTEBOOK                  (ggg_notebook_get_type ())
+#define GGG_NOTEBOOK(obj)                  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GGG_TYPE_NOTEBOOK, GggNotebook))
+#define GGG_NOTEBOOK_CLASS(klass)          (G_TYPE_CHECK_CLASS_CAST ((klass), GGG_TYPE_NOTEBOOK, GggNotebookClass))
+#define GGG_IS_NOTEBOOK(obj)               (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GGG_TYPE_NOTEBOOK))
+#define GGG_IS_NOTEBOOK_CLASS(klass)       (G_TYPE_CHECK_CLASS_TYPE ((klass), GGG_TYPE_NOTEBOOK))
+#define GGG_NOTEBOOK_GET_CLASS(obj)        (G_TYPE_INSTANCE_GET_CLASS ((obj), GGG_TYPE_NOTEBOOK, GggNotebookClass))
+
+
+typedef enum
+{
+  GGG_NOTEBOOK_TAB_FIRST,
+  GGG_NOTEBOOK_TAB_LAST
+} GggNotebookTab;
+
+typedef struct _GggNotebook       GggNotebook;
+typedef struct _GggNotebookClass  GggNotebookClass;
+typedef struct _GggNotebookPage   GggNotebookPage;
+
+struct _GggNotebook
+{
+  GtkContainer container;
+  
+  GggNotebookPage *cur_page;
+  GList *children;
+  GList *first_tab;		/* The first tab visible (for scrolling notebooks) */
+  GList *focus_tab;
+  
+  GtkWidget *menu;
+  GdkWindow *event_window;
+  
+  guint32 timer;
+  
+  guint16 tab_hborder;
+  guint16 tab_vborder;
+  
+  guint show_tabs          : 1;
+  guint homogeneous        : 1;
+  guint show_border        : 1;
+  guint tab_pos            : 2;
+  guint scrollable         : 1;
+  guint in_child           : 3;
+  guint click_child        : 3;
+  guint button             : 2;
+  guint need_timer         : 1;
+  guint child_has_focus    : 1;
+  guint have_visible_child : 1;
+  guint focus_out          : 1;	/* Flag used by ::move-focus-out implementation */
+
+  guint has_before_previous : 1;
+  guint has_before_next     : 1;
+  guint has_after_previous  : 1;
+  guint has_after_next      : 1;
+};
+
+struct _GggNotebookClass
+{
+  GtkContainerClass parent_class;
+  
+  void (* switch_page)       (GggNotebook     *notebook,
+                              GggNotebookPage *page,
+			      guint            page_num);
+
+  /* Action signals for keybindings */
+  gboolean (* select_page)     (GggNotebook       *notebook,
+                                gboolean           move_focus);
+  gboolean (* focus_tab)       (GggNotebook       *notebook,
+                                GggNotebookTab     type);
+  gboolean (* change_current_page) (GggNotebook   *notebook,
+                                gint               offset);
+  void (* move_focus_out)      (GggNotebook       *notebook,
+				GtkDirectionType   direction);
+  gboolean (* reorder_tab)     (GggNotebook       *notebook,
+				GtkDirectionType   direction,
+				gboolean           move_to_last);
+
+  /* More vfuncs */
+  gint (* insert_page)         (GggNotebook       *notebook,
+			        GtkWidget         *child,
+				GtkWidget         *tab_label,
+				GtkWidget         *menu_label,
+				gint               position);
+
+  GggNotebook * (* create_window) (GggNotebook       *notebook,
+                                   GtkWidget         *page,
+                                   gint               x,
+                                   gint               y);
+
+  void (*_gtk_reserved1) (void);
+};
+
+typedef GggNotebook* (*GggNotebookWindowCreationFunc) (GggNotebook *source,
+                                                       GtkWidget   *page,
+                                                       gint         x,
+                                                       gint         y,
+                                                       gpointer     data);
+
+/***********************************************************
+ *           Creation, insertion, deletion                 *
+ ***********************************************************/
+
+GType   ggg_notebook_get_type       (void) G_GNUC_CONST;
+GtkWidget * ggg_notebook_new        (void);
+gint ggg_notebook_append_page       (GggNotebook *notebook,
+				     GtkWidget   *child,
+				     GtkWidget   *tab_label);
+gint ggg_notebook_append_page_menu  (GggNotebook *notebook,
+				     GtkWidget   *child,
+				     GtkWidget   *tab_label,
+				     GtkWidget   *menu_label);
+gint ggg_notebook_prepend_page      (GggNotebook *notebook,
+				     GtkWidget   *child,
+				     GtkWidget   *tab_label);
+gint ggg_notebook_prepend_page_menu (GggNotebook *notebook,
+				     GtkWidget   *child,
+				     GtkWidget   *tab_label,
+				     GtkWidget   *menu_label);
+gint ggg_notebook_insert_page       (GggNotebook *notebook,
+				     GtkWidget   *child,
+				     GtkWidget   *tab_label,
+				     gint         position);
+gint ggg_notebook_insert_page_menu  (GggNotebook *notebook,
+				     GtkWidget   *child,
+				     GtkWidget   *tab_label,
+				     GtkWidget   *menu_label,
+				     gint         position);
+void ggg_notebook_remove_page       (GggNotebook *notebook,
+				     gint         page_num);
+
+/***********************************************************
+ *           Tabs drag and drop                            *
+ ***********************************************************/
+
+void ggg_notebook_set_window_creation_hook (GggNotebookWindowCreationFunc  func,
+					    gpointer                       data,
+                                            GDestroyNotify                 destroy);
+#if 1
+void ggg_notebook_set_group_id             (GggNotebook *notebook,
+					    gint         group_id);
+gint ggg_notebook_get_group_id             (GggNotebook *notebook);
+
+#endif /* GTK_DISABLE_DEPRECATED */
+
+void ggg_notebook_set_group                (GggNotebook *notebook,
+					    gpointer     group);
+gpointer ggg_notebook_get_group            (GggNotebook *notebook);
+
+
+
+/***********************************************************
+ *            query, set current NotebookPage              *
+ ***********************************************************/
+
+gint       ggg_notebook_get_current_page (GggNotebook *notebook);
+GtkWidget* ggg_notebook_get_nth_page     (GggNotebook *notebook,
+					  gint         page_num);
+gint       ggg_notebook_get_n_pages      (GggNotebook *notebook);
+gint       ggg_notebook_page_num         (GggNotebook *notebook,
+					  GtkWidget   *child);
+void       ggg_notebook_set_current_page (GggNotebook *notebook,
+					  gint         page_num);
+void       ggg_notebook_next_page        (GggNotebook *notebook);
+void       ggg_notebook_prev_page        (GggNotebook *notebook);
+
+/***********************************************************
+ *            set Notebook, NotebookTab style              *
+ ***********************************************************/
+
+void     ggg_notebook_set_show_border      (GggNotebook     *notebook,
+					    gboolean         show_border);
+gboolean ggg_notebook_get_show_border      (GggNotebook     *notebook);
+void     ggg_notebook_set_show_tabs        (GggNotebook     *notebook,
+					    gboolean         show_tabs);
+gboolean ggg_notebook_get_show_tabs        (GggNotebook     *notebook);
+void     ggg_notebook_set_tab_pos          (GggNotebook     *notebook,
+				            GtkPositionType  pos);
+GtkPositionType ggg_notebook_get_tab_pos   (GggNotebook     *notebook);
+
+#if 1
+void     ggg_notebook_set_homogeneous_tabs (GggNotebook     *notebook,
+					    gboolean         homogeneous);
+void     ggg_notebook_set_tab_border       (GggNotebook     *notebook,
+					    guint            border_width);
+void     ggg_notebook_set_tab_hborder      (GggNotebook     *notebook,
+					    guint            tab_hborder);
+void     ggg_notebook_set_tab_vborder      (GggNotebook     *notebook,
+					    guint            tab_vborder);
+#endif /* GTK_DISABLE_DEPRECATED */
+
+void     ggg_notebook_set_scrollable       (GggNotebook     *notebook,
+					    gboolean         scrollable);
+gboolean ggg_notebook_get_scrollable       (GggNotebook     *notebook);
+
+/***********************************************************
+ *               enable/disable PopupMenu                  *
+ ***********************************************************/
+
+void ggg_notebook_popup_enable  (GggNotebook *notebook);
+void ggg_notebook_popup_disable (GggNotebook *notebook);
+
+/***********************************************************
+ *             query/set NotebookPage Properties           *
+ ***********************************************************/
+
+GtkWidget * ggg_notebook_get_tab_label    (GggNotebook *notebook,
+					   GtkWidget   *child);
+void ggg_notebook_set_tab_label           (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   GtkWidget   *tab_label);
+void ggg_notebook_set_tab_label_text      (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   const gchar *tab_text);
+G_CONST_RETURN gchar *ggg_notebook_get_tab_label_text (GggNotebook *notebook,
+						       GtkWidget   *child);
+GtkWidget * ggg_notebook_get_menu_label   (GggNotebook *notebook,
+					   GtkWidget   *child);
+void ggg_notebook_set_menu_label          (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   GtkWidget   *menu_label);
+void ggg_notebook_set_menu_label_text     (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   const gchar *menu_text);
+G_CONST_RETURN gchar *ggg_notebook_get_menu_label_text (GggNotebook *notebook,
+							GtkWidget   *child);
+void ggg_notebook_query_tab_label_packing (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   gboolean    *expand,
+					   gboolean    *fill,
+					   GtkPackType *pack_type);
+void ggg_notebook_set_tab_label_packing   (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   gboolean     expand,
+					   gboolean     fill,
+					   GtkPackType  pack_type);
+void ggg_notebook_reorder_child           (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   gint         position);
+gboolean ggg_notebook_get_tab_reorderable (GggNotebook *notebook,
+					   GtkWidget   *child);
+void ggg_notebook_set_tab_reorderable     (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   gboolean     reorderable);
+gboolean ggg_notebook_get_tab_detachable  (GggNotebook *notebook,
+					   GtkWidget   *child);
+void ggg_notebook_set_tab_detachable      (GggNotebook *notebook,
+					   GtkWidget   *child,
+					   gboolean     detachable);
+
+#if 1
+#define	ggg_notebook_current_page               ggg_notebook_get_current_page
+#define ggg_notebook_set_page                   ggg_notebook_set_current_page
+#endif /* GTK_DISABLE_DEPRECATED */
+
+G_END_DECLS
+
+#endif /* __GGG_NOTEBOOK_H__ */
+
+/* ========================================================================= */
+/* More or less a copy og gtknotebook.c */
+
+/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
+ */
+
+#include <gnumeric-config.h>
+#include <gnumeric.h>
+#include <gnm-marshalers.h>
+#include "gggnotebook.h"
+#include <gtk/gtk.h>
+#include <glib/gi18n-lib.h>
+#include <string.h>
+#include <gdk/gdkkeysyms.h>
+#include <stdio.h>
+
+#define SCROLL_DELAY_FACTOR   5
+#define SCROLL_THRESHOLD      12
+#define DND_THRESHOLD_MULTIPLIER 4
+#define FRAMES_PER_SECOND     45
+#define MSECS_BETWEEN_UPDATES (1000 / FRAMES_PER_SECOND)
+
+enum {
+  SWITCH_PAGE,
+  FOCUS_TAB,
+  SELECT_PAGE,
+  CHANGE_CURRENT_PAGE,
+  MOVE_FOCUS_OUT,
+  REORDER_TAB,
+  PAGE_REORDERED,
+  PAGE_REMOVED,
+  PAGE_ADDED,
+  CREATE_WINDOW,
+  LAST_SIGNAL
+};
+
+enum {
+  STEP_PREV,
+  STEP_NEXT
+};
+
+typedef enum
+{
+  ARROW_NONE,
+  ARROW_LEFT_BEFORE,
+  ARROW_RIGHT_BEFORE,
+  ARROW_LEFT_AFTER,
+  ARROW_RIGHT_AFTER
+} GggNotebookArrow;
+
+typedef enum
+{
+  POINTER_BEFORE,
+  POINTER_AFTER,
+  POINTER_BETWEEN
+} GggNotebookPointerPosition;
+
+typedef enum
+{
+  DRAG_OPERATION_NONE,
+  DRAG_OPERATION_REORDER,
+  DRAG_OPERATION_DETACH
+} GggNotebookDragOperation;
+
+#define ARROW_IS_LEFT(arrow)  ((arrow) == ARROW_LEFT_BEFORE || (arrow) == ARROW_LEFT_AFTER)
+#define ARROW_IS_BEFORE(arrow) ((arrow) == ARROW_LEFT_BEFORE || (arrow) == ARROW_RIGHT_BEFORE)
+
+enum {
+  PROP_0,
+  PROP_TAB_POS,
+  PROP_SHOW_TABS,
+  PROP_SHOW_BORDER,
+  PROP_SCROLLABLE,
+  PROP_TAB_BORDER,
+  PROP_TAB_HBORDER,
+  PROP_TAB_VBORDER,
+  PROP_PAGE,
+  PROP_ENABLE_POPUP,
+  PROP_GROUP_ID,
+  PROP_GROUP,
+  PROP_HOMOGENEOUS
+};
+
+enum {
+  CHILD_PROP_0,
+  CHILD_PROP_TAB_LABEL,
+  CHILD_PROP_MENU_LABEL,
+  CHILD_PROP_POSITION,
+  CHILD_PROP_TAB_EXPAND,
+  CHILD_PROP_TAB_FILL,
+  CHILD_PROP_TAB_PACK,
+  CHILD_PROP_REORDERABLE,
+  CHILD_PROP_DETACHABLE
+};
+
+#define GGG_NOTEBOOK_PAGE(_glist_)         ((GggNotebookPage *)((GList *)(_glist_))->data)
+
+/* some useful defines for calculating coords */
+#define PAGE_LEFT_X(_page_)   (((GggNotebookPage *) (_page_))->allocation.x)
+#define PAGE_RIGHT_X(_page_)  (((GggNotebookPage *) (_page_))->allocation.x + ((GggNotebookPage *) (_page_))->allocation.width)
+#define PAGE_MIDDLE_X(_page_) (((GggNotebookPage *) (_page_))->allocation.x + ((GggNotebookPage *) (_page_))->allocation.width / 2)
+#define PAGE_TOP_Y(_page_)    (((GggNotebookPage *) (_page_))->allocation.y)
+#define PAGE_BOTTOM_Y(_page_) (((GggNotebookPage *) (_page_))->allocation.y + ((GggNotebookPage *) (_page_))->allocation.height)
+#define PAGE_MIDDLE_Y(_page_) (((GggNotebookPage *) (_page_))->allocation.y + ((GggNotebookPage *) (_page_))->allocation.height / 2)
+#define NOTEBOOK_IS_TAB_LABEL_PARENT(_notebook_,_page_) (((GggNotebookPage *) (_page_))->tab_label->parent == ((GtkWidget *) (_notebook_)))
+
+struct _GggNotebookPage
+{
+  GtkWidget *child;
+  GtkWidget *tab_label;
+  GtkWidget *menu_label;
+  GtkWidget *last_focus_child;	/* Last descendant of the page that had focus */
+
+  guint default_menu : 1;	/* If true, we create the menu label ourself */
+  guint default_tab  : 1;	/* If true, we create the tab label ourself */
+  guint expand       : 1;
+  guint fill         : 1;
+  guint pack         : 1;
+  guint reorderable  : 1;
+  guint detachable   : 1;
+
+  GtkRequisition requisition;
+  GtkAllocation allocation;
+
+  gulong mnemonic_activate_signal;
+  gulong notify_visible_handler;
+};
+
+#define GGG_NOTEBOOK_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GGG_TYPE_NOTEBOOK, GggNotebookPrivate))
+
+typedef struct _GggNotebookPrivate GggNotebookPrivate;
+
+struct _GggNotebookPrivate
+{
+  gpointer group;
+  gint  mouse_x;
+  gint  mouse_y;
+  gint  pressed_button;
+  guint dnd_timer;
+  guint switch_tab_timer;
+
+  gint  drag_begin_x;
+  gint  drag_begin_y;
+
+  gint  drag_offset_x;
+  gint  drag_offset_y;
+
+  GtkWidget *dnd_window;
+  GtkTargetList *source_targets;
+  GggNotebookDragOperation operation;
+  GdkWindow *drag_window;
+  gint drag_window_x;
+  gint drag_window_y;
+  GggNotebookPage *detached_tab;
+
+  guint32 timestamp;
+
+  guint during_reorder : 1;
+  guint during_detach  : 1;
+  guint has_scrolled   : 1;
+};
+
+static const GtkTargetEntry notebook_targets [] = {
+  { (char *)"GGG_NOTEBOOK_TAB", GTK_TARGET_SAME_APP, 0 },
+};
+
+#ifdef G_DISABLE_CHECKS
+#define CHECK_FIND_CHILD(notebook, child)                           \
+ ggg_notebook_find_child (notebook, child, G_STRLOC)
+#else
+#define CHECK_FIND_CHILD(notebook, child)                           \
+ ggg_notebook_find_child (notebook, child, NULL)
+#endif
+ 
+/*** GggNotebook Methods ***/
+static gboolean ggg_notebook_select_page         (GggNotebook      *notebook,
+						  gboolean          move_focus);
+static gboolean ggg_notebook_focus_tab           (GggNotebook      *notebook,
+						  GggNotebookTab    type);
+static gboolean ggg_notebook_change_current_page (GggNotebook      *notebook,
+						  gint              offset);
+static void     ggg_notebook_move_focus_out      (GggNotebook      *notebook,
+						  GtkDirectionType  direction_type);
+static gboolean ggg_notebook_reorder_tab         (GggNotebook      *notebook,
+						  GtkDirectionType  direction_type,
+						  gboolean          move_to_last);
+static void     ggg_notebook_remove_tab_label    (GggNotebook      *notebook,
+						  GggNotebookPage  *page);
+
+/*** GtkObject Methods ***/
+static void ggg_notebook_destroy             (GtkObject        *object);
+static void ggg_notebook_set_property	     (GObject         *object,
+					      guint            prop_id,
+					      const GValue    *value,
+					      GParamSpec      *pspec);
+static void ggg_notebook_get_property	     (GObject         *object,
+					      guint            prop_id,
+					      GValue          *value,
+					      GParamSpec      *pspec);
+
+/*** GtkWidget Methods ***/
+static void ggg_notebook_map                 (GtkWidget        *widget);
+static void ggg_notebook_unmap               (GtkWidget        *widget);
+static void ggg_notebook_realize             (GtkWidget        *widget);
+static void ggg_notebook_unrealize           (GtkWidget        *widget);
+static void ggg_notebook_size_request        (GtkWidget        *widget,
+					      GtkRequisition   *requisition);
+static void ggg_notebook_size_allocate       (GtkWidget        *widget,
+					      GtkAllocation    *allocation);
+static gint ggg_notebook_expose              (GtkWidget        *widget,
+					      GdkEventExpose   *event);
+static gboolean ggg_notebook_scroll          (GtkWidget        *widget,
+                                              GdkEventScroll   *event);
+static gint ggg_notebook_button_press        (GtkWidget        *widget,
+					      GdkEventButton   *event);
+static gint ggg_notebook_button_release      (GtkWidget        *widget,
+					      GdkEventButton   *event);
+static gboolean ggg_notebook_popup_menu      (GtkWidget        *widget);
+static gint ggg_notebook_leave_notify        (GtkWidget        *widget,
+					      GdkEventCrossing *event);
+static gint ggg_notebook_motion_notify       (GtkWidget        *widget,
+					      GdkEventMotion   *event);
+static gint ggg_notebook_focus_in            (GtkWidget        *widget,
+					      GdkEventFocus    *event);
+static gint ggg_notebook_focus_out           (GtkWidget        *widget,
+					      GdkEventFocus    *event);
+static void ggg_notebook_grab_notify         (GtkWidget          *widget,
+					      gboolean            was_grabbed);
+static void ggg_notebook_state_changed       (GtkWidget          *widget,
+					      GtkStateType        previous_state);
+static void ggg_notebook_draw_focus          (GtkWidget        *widget,
+					      GdkEventExpose   *event);
+static gint ggg_notebook_focus               (GtkWidget        *widget,
+					      GtkDirectionType  direction);
+static void ggg_notebook_style_set           (GtkWidget        *widget,
+					      GtkStyle         *previous);
+
+/*** Drag and drop Methods ***/
+static void ggg_notebook_drag_begin          (GtkWidget        *widget,
+					      GdkDragContext   *context);
+static void ggg_notebook_drag_end            (GtkWidget        *widget,
+					      GdkDragContext   *context);
+static gboolean ggg_notebook_drag_failed     (GtkWidget        *widget,
+					      GdkDragContext   *context,
+					      GtkDragResult     result,
+					      gpointer          data);
+static gboolean ggg_notebook_drag_motion     (GtkWidget        *widget,
+					      GdkDragContext   *context,
+					      gint              x,
+					      gint              y,
+					      guint             time);
+static void ggg_notebook_drag_leave          (GtkWidget        *widget,
+					      GdkDragContext   *context,
+					      guint             time);
+static gboolean ggg_notebook_drag_drop       (GtkWidget        *widget,
+					      GdkDragContext   *context,
+					      gint              x,
+					      gint              y,
+					      guint             time);
+static void ggg_notebook_drag_data_get       (GtkWidget        *widget,
+					      GdkDragContext   *context,
+					      GtkSelectionData *data,
+					      guint             info,
+					      guint             time);
+static void ggg_notebook_drag_data_received  (GtkWidget        *widget,
+					      GdkDragContext   *context,
+					      gint              x,
+					      gint              y,
+					      GtkSelectionData *data,
+					      guint             info,
+					      guint             time);
+
+/*** GtkContainer Methods ***/
+static void ggg_notebook_set_child_property  (GtkContainer     *container,
+					      GtkWidget        *child,
+					      guint             property_id,
+					      const GValue     *value,
+					      GParamSpec       *pspec);
+static void ggg_notebook_get_child_property  (GtkContainer     *container,
+					      GtkWidget        *child,
+					      guint             property_id,
+					      GValue           *value,
+					      GParamSpec       *pspec);
+static void ggg_notebook_add                 (GtkContainer     *container,
+					      GtkWidget        *widget);
+static void ggg_notebook_remove              (GtkContainer     *container,
+					      GtkWidget        *widget);
+static void ggg_notebook_set_focus_child     (GtkContainer     *container,
+					      GtkWidget        *child);
+static GType ggg_notebook_child_type       (GtkContainer     *container);
+static void ggg_notebook_forall              (GtkContainer     *container,
+					      gboolean		include_internals,
+					      GtkCallback       callback,
+					      gpointer          callback_data);
+
+/*** GggNotebook Methods ***/
+static gint ggg_notebook_real_insert_page    (GggNotebook      *notebook,
+					      GtkWidget        *child,
+					      GtkWidget        *tab_label,
+					      GtkWidget        *menu_label,
+					      gint              position);
+
+static GggNotebook *ggg_notebook_create_window (GggNotebook    *notebook,
+                                                GtkWidget      *page,
+                                                gint            x,
+                                                gint            y);
+
+/*** GggNotebook Private Functions ***/
+static void ggg_notebook_redraw_tabs         (GggNotebook      *notebook);
+static void ggg_notebook_redraw_arrows       (GggNotebook      *notebook);
+static void ggg_notebook_real_remove         (GggNotebook      *notebook,
+					      GList            *list);
+static void ggg_notebook_update_labels       (GggNotebook      *notebook);
+static gint ggg_notebook_timer               (GggNotebook      *notebook);
+static void ggg_notebook_set_scroll_timer    (GggNotebook *notebook);
+static gint ggg_notebook_page_compare        (gconstpointer     a,
+					      gconstpointer     b);
+static GList* ggg_notebook_find_child        (GggNotebook      *notebook,
+					      GtkWidget        *child,
+					      const gchar      *function);
+static gint  ggg_notebook_real_page_position (GggNotebook      *notebook,
+					      GList            *list);
+static GList * ggg_notebook_search_page      (GggNotebook      *notebook,
+					      GList            *list,
+					      gint              direction,
+					      gboolean          find_visible);
+static void  ggg_notebook_child_reordered    (GggNotebook      *notebook,
+			                      GggNotebookPage  *page);
+
+/*** GggNotebook Drawing Functions ***/
+static void ggg_notebook_paint               (GtkWidget        *widget,
+					      GdkRectangle     *area);
+static void ggg_notebook_draw_tab            (GggNotebook      *notebook,
+					      GggNotebookPage  *page,
+					      GdkRectangle     *area);
+static void ggg_notebook_draw_arrow          (GggNotebook      *notebook,
+					      GggNotebookArrow  arrow);
+
+/*** GggNotebook Size Allocate Functions ***/
+static void ggg_notebook_pages_allocate      (GggNotebook      *notebook);
+static void ggg_notebook_page_allocate       (GggNotebook      *notebook,
+					      GggNotebookPage  *page);
+static void ggg_notebook_calc_tabs           (GggNotebook      *notebook,
+			                      GList            *start,
+					      GList           **end,
+					      gint             *tab_space,
+					      guint             direction);
+
+/*** GggNotebook Page Switch Methods ***/
+static void ggg_notebook_real_switch_page    (GggNotebook      *notebook,
+					      GggNotebookPage  *page,
+					      guint             page_num);
+
+/*** GggNotebook Page Switch Functions ***/
+static void ggg_notebook_switch_page         (GggNotebook      *notebook,
+					      GggNotebookPage  *page);
+static gint ggg_notebook_page_select         (GggNotebook      *notebook,
+					      gboolean          move_focus);
+static void ggg_notebook_switch_focus_tab    (GggNotebook      *notebook,
+                                              GList            *new_child);
+static void ggg_notebook_menu_switch_page    (GtkWidget        *widget,
+					      GggNotebookPage  *page);
+
+/*** GggNotebook Menu Functions ***/
+static void ggg_notebook_menu_item_create    (GggNotebook      *notebook,
+					      GList            *list);
+static void ggg_notebook_menu_label_unparent (GtkWidget        *widget,
+					      gpointer          data);
+static void ggg_notebook_menu_detacher       (GtkWidget        *widget,
+					      GtkMenu          *menu);
+
+/*** GggNotebook Private Setters ***/
+static void ggg_notebook_set_homogeneous_tabs_internal (GggNotebook *notebook,
+							gboolean     homogeneous);
+static void ggg_notebook_set_tab_border_internal       (GggNotebook *notebook,
+							guint        border_width);
+static void ggg_notebook_set_tab_hborder_internal      (GggNotebook *notebook,
+							guint        tab_hborder);
+static void ggg_notebook_set_tab_vborder_internal      (GggNotebook *notebook,
+							guint        tab_vborder);
+
+static void ggg_notebook_update_tab_states             (GggNotebook *notebook);
+static gboolean ggg_notebook_mnemonic_activate_switch_page (GtkWidget *child,
+							    gboolean overload,
+							    gpointer data);
+
+static gboolean focus_tabs_in  (GggNotebook      *notebook);
+static gboolean focus_child_in (GggNotebook      *notebook,
+				GtkDirectionType  direction);
+
+static void stop_scrolling (GggNotebook *notebook);
+static void do_detach_tab  (GggNotebook *from,
+			    GggNotebook *to,
+			    GtkWidget   *child,
+			    gint         x,
+			    gint         y);
+
+/* GtkBuildable */
+static void ggg_notebook_buildable_init           (GtkBuildableIface *iface);
+static void ggg_notebook_buildable_add_child      (GtkBuildable *buildable,
+						   GtkBuilder   *builder,
+						   GObject      *child,
+						   const gchar  *type);
+
+static GggNotebookWindowCreationFunc window_creation_hook = NULL;
+static gpointer window_creation_hook_data;
+static GDestroyNotify window_creation_hook_destroy = NULL;
+
+static guint notebook_signals[LAST_SIGNAL] = { 0 };
+
+G_DEFINE_TYPE_WITH_CODE (GggNotebook, ggg_notebook, GTK_TYPE_CONTAINER,
+			 G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
+						ggg_notebook_buildable_init))
+
+static void
+add_tab_bindings (GtkBindingSet    *binding_set,
+		  GdkModifierType   modifiers,
+		  GtkDirectionType  direction)
+{
+  gtk_binding_entry_add_signal (binding_set, GDK_Tab, modifiers,
+                                "move_focus_out", 1,
+                                GTK_TYPE_DIRECTION_TYPE, direction);
+  gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, modifiers,
+                                "move_focus_out", 1,
+                                GTK_TYPE_DIRECTION_TYPE, direction);
+}
+
+static void
+add_arrow_bindings (GtkBindingSet    *binding_set,
+		    guint             keysym,
+		    GtkDirectionType  direction)
+{
+  guint keypad_keysym = keysym - GDK_Left + GDK_KP_Left;
+  
+  gtk_binding_entry_add_signal (binding_set, keysym, GDK_CONTROL_MASK,
+                                "move_focus_out", 1,
+                                GTK_TYPE_DIRECTION_TYPE, direction);
+  gtk_binding_entry_add_signal (binding_set, keypad_keysym, GDK_CONTROL_MASK,
+                                "move_focus_out", 1,
+                                GTK_TYPE_DIRECTION_TYPE, direction);
+}
+
+static void
+add_reorder_bindings (GtkBindingSet    *binding_set,
+		      guint             keysym,
+		      GtkDirectionType  direction,
+		      gboolean          move_to_last)
+{
+  guint keypad_keysym = keysym - GDK_Left + GDK_KP_Left;
+
+  gtk_binding_entry_add_signal (binding_set, keysym, GDK_MOD1_MASK,
+				"reorder_tab", 2,
+				GTK_TYPE_DIRECTION_TYPE, direction,
+				G_TYPE_BOOLEAN, move_to_last);
+  gtk_binding_entry_add_signal (binding_set, keypad_keysym, GDK_MOD1_MASK,
+				"reorder_tab", 2,
+				GTK_TYPE_DIRECTION_TYPE, direction,
+				G_TYPE_BOOLEAN, move_to_last);
+}
+
+static gboolean
+gtk_object_handled_accumulator (GSignalInvocationHint *ihint,
+                                GValue                *return_accu,
+                                const GValue          *handler_return,
+                                gpointer               dummy)
+{
+  gboolean continue_emission;
+  GObject *object;
+
+  object = g_value_get_object (handler_return);
+  g_value_set_object (return_accu, object);
+  continue_emission = !object;
+
+  return continue_emission;
+}
+
+static void
+ggg_notebook_class_init (GggNotebookClass *class)
+{
+  GObjectClass   *gobject_class = G_OBJECT_CLASS (class);
+  GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
+  GtkBindingSet *binding_set;
+  
+  gobject_class->set_property = ggg_notebook_set_property;
+  gobject_class->get_property = ggg_notebook_get_property;
+  object_class->destroy = ggg_notebook_destroy;
+
+  widget_class->map = ggg_notebook_map;
+  widget_class->unmap = ggg_notebook_unmap;
+  widget_class->realize = ggg_notebook_realize;
+  widget_class->unrealize = ggg_notebook_unrealize;
+  widget_class->size_request = ggg_notebook_size_request;
+  widget_class->size_allocate = ggg_notebook_size_allocate;
+  widget_class->expose_event = ggg_notebook_expose;
+  widget_class->scroll_event = ggg_notebook_scroll;
+  widget_class->button_press_event = ggg_notebook_button_press;
+  widget_class->button_release_event = ggg_notebook_button_release;
+  widget_class->popup_menu = ggg_notebook_popup_menu;
+  widget_class->leave_notify_event = ggg_notebook_leave_notify;
+  widget_class->motion_notify_event = ggg_notebook_motion_notify;
+  widget_class->grab_notify = ggg_notebook_grab_notify;
+  widget_class->state_changed = ggg_notebook_state_changed;
+  widget_class->focus_in_event = ggg_notebook_focus_in;
+  widget_class->focus_out_event = ggg_notebook_focus_out;
+  widget_class->focus = ggg_notebook_focus;
+  widget_class->style_set = ggg_notebook_style_set;
+  widget_class->drag_begin = ggg_notebook_drag_begin;
+  widget_class->drag_end = ggg_notebook_drag_end;
+  widget_class->drag_motion = ggg_notebook_drag_motion;
+  widget_class->drag_leave = ggg_notebook_drag_leave;
+  widget_class->drag_drop = ggg_notebook_drag_drop;
+  widget_class->drag_data_get = ggg_notebook_drag_data_get;
+  widget_class->drag_data_received = ggg_notebook_drag_data_received;
+
+  container_class->add = ggg_notebook_add;
+  container_class->remove = ggg_notebook_remove;
+  container_class->forall = ggg_notebook_forall;
+  container_class->set_focus_child = ggg_notebook_set_focus_child;
+  container_class->get_child_property = ggg_notebook_get_child_property;
+  container_class->set_child_property = ggg_notebook_set_child_property;
+  container_class->child_type = ggg_notebook_child_type;
+
+  class->switch_page = ggg_notebook_real_switch_page;
+  class->insert_page = ggg_notebook_real_insert_page;
+
+  class->focus_tab = ggg_notebook_focus_tab;
+  class->select_page = ggg_notebook_select_page;
+  class->change_current_page = ggg_notebook_change_current_page;
+  class->move_focus_out = ggg_notebook_move_focus_out;
+  class->reorder_tab = ggg_notebook_reorder_tab;
+  class->create_window = ggg_notebook_create_window;
+  
+  g_object_class_install_property (gobject_class,
+				   PROP_PAGE,
+				   g_param_spec_int ("page",
+ 						     _("Page"),
+ 						     _("The index of the current page"),
+ 						     0,
+ 						     G_MAXINT,
+ 						     0,
+ 						     G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_TAB_POS,
+				   g_param_spec_enum ("tab-pos",
+ 						      _("Tab Position"),
+ 						      _("Which side of the notebook holds the tabs"),
+ 						      GTK_TYPE_POSITION_TYPE,
+ 						      GTK_POS_TOP,
+ 						      G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_TAB_BORDER,
+				   g_param_spec_uint ("tab-border",
+ 						      _("Tab Border"),
+ 						      _("Width of the border around the tab labels"),
+ 						      0,
+ 						      G_MAXUINT,
+ 						      2,
+ 						      G_PARAM_WRITABLE));
+  g_object_class_install_property (gobject_class,
+				   PROP_TAB_HBORDER,
+				   g_param_spec_uint ("tab-hborder",
+ 						      _("Horizontal Tab Border"),
+ 						      _("Width of the horizontal border of tab labels"),
+ 						      0,
+ 						      G_MAXUINT,
+ 						      2,
+ 						      G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_TAB_VBORDER,
+				   g_param_spec_uint ("tab-vborder",
+ 						      _("Vertical Tab Border"),
+ 						      _("Width of the vertical border of tab labels"),
+ 						      0,
+ 						      G_MAXUINT,
+ 						      2,
+ 						      G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_SHOW_TABS,
+				   g_param_spec_boolean ("show-tabs",
+ 							 _("Show Tabs"),
+ 							 _("Whether tabs should be shown or not"),
+ 							 TRUE,
+ 							 G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_SHOW_BORDER,
+				   g_param_spec_boolean ("show-border",
+ 							 _("Show Border"),
+ 							 _("Whether the border should be shown or not"),
+ 							 TRUE,
+ 							 G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_SCROLLABLE,
+				   g_param_spec_boolean ("scrollable",
+ 							 _("Scrollable"),
+ 							 _("If TRUE, scroll arrows are added if there are too many tabs to fit"),
+ 							 FALSE,
+ 							 G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_ENABLE_POPUP,
+				   g_param_spec_boolean ("enable-popup",
+ 							 _("Enable Popup"),
+ 							 _("If TRUE, pressing the right mouse button on the notebook pops up a menu that you can use to go to a page"),
+ 							 FALSE,
+ 							 G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_HOMOGENEOUS,
+				   g_param_spec_boolean ("homogeneous",
+ 							 _("Homogeneous"),
+ 							 _("Whether tabs should have homogeneous sizes"),
+ 							 FALSE,
+							 G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class,
+				   PROP_GROUP_ID,
+				   g_param_spec_int ("group-id",
+						     _("Group ID"),
+						     _("Group ID for tabs drag and drop"),
+						     -1,
+						     G_MAXINT,
+						     -1,
+						     G_PARAM_READWRITE));
+
+  /**
+   * GggNotebook:group:
+   *  
+   * Group for tabs drag and drop.
+   *
+   * Since: 2.12
+   */    
+  g_object_class_install_property (gobject_class,
+				   PROP_GROUP,
+				   g_param_spec_pointer ("group",
+							 _("Group"),
+							 _("Group for tabs drag and drop"),
+							 G_PARAM_READWRITE));
+
+  gtk_container_class_install_child_property (container_class,
+					      CHILD_PROP_TAB_LABEL,
+					      g_param_spec_string ("tab-label", 
+								   _("Tab label"),
+								   _("The string displayed on the child's tab label"),
+								   NULL,
+								   G_PARAM_READWRITE));
+  gtk_container_class_install_child_property (container_class,
+					      CHILD_PROP_MENU_LABEL,
+					      g_param_spec_string ("menu-label", 
+								   _("Menu label"), 
+								   _("The string displayed in the child's menu entry"),
+								   NULL,
+								   G_PARAM_READWRITE));
+  gtk_container_class_install_child_property (container_class,
+					      CHILD_PROP_POSITION,
+					      g_param_spec_int ("position", 
+								_("Position"), 
+								_("The index of the child in the parent"),
+								-1, G_MAXINT, 0,
+								G_PARAM_READWRITE));
+  gtk_container_class_install_child_property (container_class,
+					      CHILD_PROP_TAB_EXPAND,
+					      g_param_spec_boolean ("tab-expand", 
+								    _("Tab expand"), 
+								    _("Whether to expand the child's tab or not"),
+								    FALSE,
+								    G_PARAM_READWRITE));
+  gtk_container_class_install_child_property (container_class,
+					      CHILD_PROP_TAB_FILL,
+					      g_param_spec_boolean ("tab-fill", 
+								    _("Tab fill"), 
+								    _("Whether the child's tab should fill the allocated area or not"),
+								    TRUE,
+								    G_PARAM_READWRITE));
+  gtk_container_class_install_child_property (container_class,
+					      CHILD_PROP_TAB_PACK,
+					      g_param_spec_enum ("tab-pack", 
+								 _("Tab pack type"),
+								 _("A GtkPackType indicating whether the child is packed with reference to the start or end of the parent"),
+								 GTK_TYPE_PACK_TYPE, GTK_PACK_START,
+								 G_PARAM_READWRITE));
+  gtk_container_class_install_child_property (container_class,
+					      CHILD_PROP_REORDERABLE,
+					      g_param_spec_boolean ("reorderable",
+								    _("Tab reorderable"),
+								    _("Whether the tab is reorderable by user action or not"),
+								    FALSE,
+								    G_PARAM_READWRITE));
+  gtk_container_class_install_child_property (container_class,
+					      CHILD_PROP_DETACHABLE,
+					      g_param_spec_boolean ("detachable",
+								    _("Tab detachable"),
+								    _("Whether the tab is detachable"),
+								    FALSE,
+								    G_PARAM_READWRITE));
+
+/**
+ * GggNotebook:has-secondary-backward-stepper:
+ *
+ * The "has-secondary-backward-stepper" property determines whether 
+ * a second backward arrow button is displayed on the opposite end 
+ * of the tab area.
+ *
+ * Since: 2.4
+ */  
+  gtk_widget_class_install_style_property (widget_class,
+					   g_param_spec_boolean ("has-secondary-backward-stepper",
+								 _("Secondary backward stepper"),
+								 _("Display a second backward arrow button on the opposite end of the tab area"),
+								 FALSE,
+								 G_PARAM_READABLE));
+
+/**
+ * GggNotebook:has-secondary-forward-stepper:
+ *
+ * The "has-secondary-forward-stepper" property determines whether 
+ * a second forward arrow button is displayed on the opposite end 
+ * of the tab area.
+ *
+ * Since: 2.4
+ */  
+  gtk_widget_class_install_style_property (widget_class,
+					   g_param_spec_boolean ("has-secondary-forward-stepper",
+								 _("Secondary forward stepper"),
+								 _("Display a second forward arrow button on the opposite end of the tab area"),
+								 FALSE,
+								 G_PARAM_READABLE));
+
+/**
+ * GggNotebook:has-backward-stepper:
+ *
+ * The "has-backward-stepper" property determines whether 
+ * the standard backward arrow button is displayed.
+ *
+ * Since: 2.4
+ */  
+  gtk_widget_class_install_style_property (widget_class,
+					   g_param_spec_boolean ("has-backward-stepper",
+								 _("Backward stepper"),
+								 _("Display the standard backward arrow button"),
+								 TRUE,
+								 G_PARAM_READABLE));
+
+/**
+ * GggNotebook:has-forward-stepper:
+ *
+ * The "has-forward-stepper" property determines whether 
+ * the standard forward arrow button is displayed.
+ *
+ * Since: 2.4
+ */  
+  gtk_widget_class_install_style_property (widget_class,
+					   g_param_spec_boolean ("has-forward-stepper",
+								 _("Forward stepper"),
+								 _("Display the standard forward arrow button"),
+								 TRUE,
+								 G_PARAM_READABLE));
+  
+/**
+ * GggNotebook:tab-overlap:
+ *
+ * The "tab-overlap" property defines size of tab overlap
+ * area.
+ *
+ * Since: 2.10
+ */  
+  gtk_widget_class_install_style_property (widget_class,
+					   g_param_spec_int ("tab-overlap",
+							     _("Tab overlap"),
+							     _("Size of tab overlap area"),
+							     G_MININT,
+							     G_MAXINT,
+							     2,
+							     G_PARAM_READABLE));
+
+/**
+ * GggNotebook:tab-curvature:
+ *
+ * The "tab-curvature" property defines size of tab curvature.
+ *
+ * Since: 2.10
+ */  
+  gtk_widget_class_install_style_property (widget_class,
+					   g_param_spec_int ("tab-curvature",
+							     _("Tab curvature"),
+							     _("Size of tab curvature"),
+							     0,
+							     G_MAXINT,
+							     1,
+							     G_PARAM_READABLE));
+
+  /**
+   * GggNotebook:arrow-spacing:
+   *
+   * The "arrow-spacing" property defines the spacing between the scroll
+   * arrows and the tabs.
+   *
+   * Since: 2.10
+   */
+  gtk_widget_class_install_style_property (widget_class,
+                                           g_param_spec_int ("arrow-spacing",
+                                                             _("Arrow spacing"),
+                                                             _("Scroll arrow spacing"),
+                                                             0,
+                                                             G_MAXINT,
+                                                             0,
+                                                             G_PARAM_READABLE));
+
+  notebook_signals[SWITCH_PAGE] =
+    g_signal_new (_("switch_page"),
+		  G_TYPE_FROM_CLASS (gobject_class),
+		  G_SIGNAL_RUN_LAST,
+		  G_STRUCT_OFFSET (GggNotebookClass, switch_page),
+		  NULL, NULL,
+		  ggg__VOID__POINTER_UINT,
+		  G_TYPE_NONE, 2,
+		  G_TYPE_POINTER,
+		  G_TYPE_UINT);
+  notebook_signals[FOCUS_TAB] = 
+    g_signal_new (_("focus_tab"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                  G_STRUCT_OFFSET (GggNotebookClass, focus_tab),
+                  NULL, NULL,
+                  ggg__BOOLEAN__ENUM,
+                  G_TYPE_BOOLEAN, 1,
+                  GTK_TYPE_NOTEBOOK_TAB);
+  notebook_signals[SELECT_PAGE] = 
+    g_signal_new (_("select_page"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                  G_STRUCT_OFFSET (GggNotebookClass, select_page),
+                  NULL, NULL,
+                  ggg__BOOLEAN__BOOLEAN,
+                  G_TYPE_BOOLEAN, 1,
+                  G_TYPE_BOOLEAN);
+  notebook_signals[CHANGE_CURRENT_PAGE] = 
+    g_signal_new (_("change_current_page"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                  G_STRUCT_OFFSET (GggNotebookClass, change_current_page),
+                  NULL, NULL,
+                  ggg__BOOLEAN__INT,
+                  G_TYPE_BOOLEAN, 1,
+                  G_TYPE_INT);
+  notebook_signals[MOVE_FOCUS_OUT] =
+    g_signal_new (_("move_focus_out"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                  G_STRUCT_OFFSET (GggNotebookClass, move_focus_out),
+                  NULL, NULL,
+                  ggg__VOID__ENUM,
+                  G_TYPE_NONE, 1,
+                  GTK_TYPE_DIRECTION_TYPE);
+  notebook_signals[REORDER_TAB] =
+    g_signal_new (_("reorder_tab"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                  G_STRUCT_OFFSET (GggNotebookClass, reorder_tab),
+                  NULL, NULL,
+                  ggg__BOOLEAN__ENUM_BOOLEAN,
+                  G_TYPE_BOOLEAN, 2,
+                  GTK_TYPE_DIRECTION_TYPE,
+		  G_TYPE_BOOLEAN);
+  /**
+   * GggNotebook::page-reordered:
+   * @notebook: the #GggNotebook
+   * @child: the child #GtkWidget affected
+   * @page_num: the new page number for @child
+   *
+   * the ::page-reordered signal is emitted in the notebook
+   * right after a page has been reordered.
+   *
+   * Since: 2.10
+   **/
+  notebook_signals[PAGE_REORDERED] =
+    g_signal_new (_("page_reordered"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST,
+                  0, NULL, NULL,
+		  ggg__VOID__OBJECT_UINT,
+                  G_TYPE_NONE, 2,
+		  GTK_TYPE_WIDGET,
+		  G_TYPE_UINT);
+  /**
+   * GggNotebook::page-removed:
+   * @notebook: the #GggNotebook
+   * @child: the child #GtkWidget affected
+   * @page_num: the @child page number
+   *
+   * the ::page-removed signal is emitted in the notebook
+   * right after a page is removed from the notebook.
+   *
+   * Since: 2.10
+   **/
+  notebook_signals[PAGE_REMOVED] =
+    g_signal_new (_("page_removed"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST,
+                  0, NULL, NULL,
+		  ggg__VOID__OBJECT_UINT,
+                  G_TYPE_NONE, 2,
+		  GTK_TYPE_WIDGET,
+		  G_TYPE_UINT);
+  /**
+   * GggNotebook::page-added:
+   * @notebook: the #GggNotebook
+   * @child: the child #GtkWidget affected
+   * @page_num: the new page number for @child
+   *
+   * the ::page-added signal is emitted in the notebook
+   * right after a page is added to the notebook.
+   *
+   * Since: 2.10
+   **/
+  notebook_signals[PAGE_ADDED] =
+    g_signal_new (_("page_added"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST,
+                  0, NULL, NULL,
+		  ggg__VOID__OBJECT_UINT,
+                  G_TYPE_NONE, 2,
+		  GTK_TYPE_WIDGET,
+		  G_TYPE_UINT);
+
+  /**
+   * GggNotebook::create-window:
+   * @notebook: the #GggNotebook emitting the signal
+   * @page: the tab of @notebook that is being detached
+   * @x: the X coordinate where the drop happens
+   * @y: the Y coordinate where the drop happens
+   *
+   * The ::create-window signal is emitted when a detachable
+   * tab is dropped on the root window. 
+   *
+   * A handler for this signal can create a window containing 
+   * a notebook where the tab will be attached. It is also 
+   * responsible for moving/resizing the window and adding the 
+   * necessary properties to the notebook (e.g. the 
+   * #GggNotebook:group-id ).
+   *
+   * The default handler uses the global window creation hook,
+   * if one has been set with ggg_notebook_set_window_creation_hook().
+   *
+   * Returns: a #GggNotebook that @page should be added to, or %NULL.
+   *
+   * Since: 2.12
+   */
+  notebook_signals[CREATE_WINDOW] = 
+    g_signal_new (_("create_window"),
+                  G_TYPE_FROM_CLASS (gobject_class),
+                  G_SIGNAL_RUN_LAST,
+                  G_STRUCT_OFFSET (GggNotebookClass, create_window),
+                  gtk_object_handled_accumulator, NULL,
+                  ggg__OBJECT__OBJECT_INT_INT,
+                  GGG_TYPE_NOTEBOOK, 3,
+                  GTK_TYPE_WIDGET, G_TYPE_INT, G_TYPE_INT);
+ 
+  binding_set = gtk_binding_set_by_class (class);
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_space, 0,
+                                "select_page", 1, 
+                                G_TYPE_BOOLEAN, FALSE);
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_KP_Space, 0,
+                                "select_page", 1, 
+                                G_TYPE_BOOLEAN, FALSE);
+  
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_Home, 0,
+                                "focus_tab", 1, 
+                                GTK_TYPE_NOTEBOOK_TAB, GGG_NOTEBOOK_TAB_FIRST);
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_KP_Home, 0,
+                                "focus_tab", 1, 
+                                GTK_TYPE_NOTEBOOK_TAB, GGG_NOTEBOOK_TAB_FIRST);
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_End, 0,
+                                "focus_tab", 1, 
+                                GTK_TYPE_NOTEBOOK_TAB, GGG_NOTEBOOK_TAB_LAST);
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_KP_End, 0,
+                                "focus_tab", 1, 
+                                GTK_TYPE_NOTEBOOK_TAB, GGG_NOTEBOOK_TAB_LAST);
+
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_Page_Up, GDK_CONTROL_MASK,
+                                "change_current_page", 1,
+                                G_TYPE_INT, -1);
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_Page_Down, GDK_CONTROL_MASK,
+                                "change_current_page", 1,
+                                G_TYPE_INT, 1);
+
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_Page_Up, GDK_CONTROL_MASK | GDK_MOD1_MASK,
+                                "change_current_page", 1,
+                                G_TYPE_INT, -1);
+  gtk_binding_entry_add_signal (binding_set,
+                                GDK_Page_Down, GDK_CONTROL_MASK | GDK_MOD1_MASK,
+                                "change_current_page", 1,
+                                G_TYPE_INT, 1);
+
+  add_arrow_bindings (binding_set, GDK_Up, GTK_DIR_UP);
+  add_arrow_bindings (binding_set, GDK_Down, GTK_DIR_DOWN);
+  add_arrow_bindings (binding_set, GDK_Left, GTK_DIR_LEFT);
+  add_arrow_bindings (binding_set, GDK_Right, GTK_DIR_RIGHT);
+
+  add_reorder_bindings (binding_set, GDK_Up, GTK_DIR_UP, FALSE);
+  add_reorder_bindings (binding_set, GDK_Down, GTK_DIR_DOWN, FALSE);
+  add_reorder_bindings (binding_set, GDK_Left, GTK_DIR_LEFT, FALSE);
+  add_reorder_bindings (binding_set, GDK_Right, GTK_DIR_RIGHT, FALSE);
+  add_reorder_bindings (binding_set, GDK_Home, GTK_DIR_LEFT, TRUE);
+  add_reorder_bindings (binding_set, GDK_Home, GTK_DIR_UP, TRUE);
+  add_reorder_bindings (binding_set, GDK_End, GTK_DIR_RIGHT, TRUE);
+  add_reorder_bindings (binding_set, GDK_End, GTK_DIR_DOWN, TRUE);
+
+  add_tab_bindings (binding_set, GDK_CONTROL_MASK, GTK_DIR_TAB_FORWARD);
+  add_tab_bindings (binding_set, GDK_CONTROL_MASK | GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD);
+
+  g_type_class_add_private (class, sizeof (GggNotebookPrivate));
+}
+
+static void
+ggg_notebook_init (GggNotebook *notebook)
+{
+  GggNotebookPrivate *priv;
+
+  GTK_WIDGET_SET_FLAGS (notebook, GTK_CAN_FOCUS);
+  GTK_WIDGET_SET_FLAGS (notebook, GTK_NO_WINDOW);
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+  notebook->cur_page = NULL;
+  notebook->children = NULL;
+  notebook->first_tab = NULL;
+  notebook->focus_tab = NULL;
+  notebook->event_window = NULL;
+  notebook->menu = NULL;
+
+  notebook->tab_hborder = 2;
+  notebook->tab_vborder = 2;
+
+  notebook->show_tabs = TRUE;
+  notebook->show_border = TRUE;
+  notebook->tab_pos = GTK_POS_TOP;
+  notebook->scrollable = FALSE;
+  notebook->in_child = 0;
+  notebook->click_child = 0;
+  notebook->button = 0;
+  notebook->need_timer = 0;
+  notebook->child_has_focus = FALSE;
+  notebook->have_visible_child = FALSE;
+  notebook->focus_out = FALSE;
+
+  notebook->has_before_previous = 1;
+  notebook->has_before_next     = 0;
+  notebook->has_after_previous  = 0;
+  notebook->has_after_next      = 1;
+
+  priv->group = NULL;
+  priv->pressed_button = -1;
+  priv->dnd_timer = 0;
+  priv->switch_tab_timer = 0;
+  priv->source_targets = gtk_target_list_new (notebook_targets,
+					      G_N_ELEMENTS (notebook_targets));
+  priv->operation = DRAG_OPERATION_NONE;
+  priv->detached_tab = NULL;
+  priv->during_detach = FALSE;
+  priv->has_scrolled = FALSE;
+
+  gtk_drag_dest_set (GTK_WIDGET (notebook), 0,
+		     notebook_targets, G_N_ELEMENTS (notebook_targets),
+                     GDK_ACTION_MOVE);
+
+  g_signal_connect (G_OBJECT (notebook), "drag-failed",
+		    G_CALLBACK (ggg_notebook_drag_failed), NULL);
+
+  gtk_drag_dest_set_track_motion (GTK_WIDGET (notebook), TRUE);
+}
+
+static void
+ggg_notebook_buildable_init (GtkBuildableIface *iface)
+{
+  iface->add_child = ggg_notebook_buildable_add_child;
+}
+
+static void
+ggg_notebook_buildable_add_child (GtkBuildable  *buildable,
+				  GtkBuilder    *builder,
+				  GObject       *child,
+				  const gchar   *type)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (buildable);
+
+  if (type && strcmp (type, "tab") == 0)
+    {
+      GtkWidget * page;
+
+      page = ggg_notebook_get_nth_page (notebook, -1);
+      /* To set the tab label widget, we must have already a child
+       * inside the tab container. */
+      g_assert (page != NULL);
+      ggg_notebook_set_tab_label (notebook, page, GTK_WIDGET (child));
+    }
+  else if (!type)
+    ggg_notebook_append_page (notebook, GTK_WIDGET (child), NULL);
+  else
+    GTK_BUILDER_WARN_INVALID_CHILD_TYPE (notebook, type);
+}
+
+static gboolean
+ggg_notebook_select_page (GggNotebook *notebook,
+                          gboolean     move_focus)
+{
+  if (gtk_widget_is_focus (GTK_WIDGET (notebook)) && notebook->show_tabs)
+    {
+      ggg_notebook_page_select (notebook, move_focus);
+      return TRUE;
+    }
+  else
+    return FALSE;
+}
+
+static gboolean
+ggg_notebook_focus_tab (GggNotebook       *notebook,
+                        GggNotebookTab     type)
+{
+  GList *list;
+
+  if (gtk_widget_is_focus (GTK_WIDGET (notebook)) && notebook->show_tabs)
+    {
+      switch (type)
+	{
+	case GGG_NOTEBOOK_TAB_FIRST:
+	  list = ggg_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE);
+	  if (list)
+	    ggg_notebook_switch_focus_tab (notebook, list);
+	  break;
+	case GGG_NOTEBOOK_TAB_LAST:
+	  list = ggg_notebook_search_page (notebook, NULL, STEP_PREV, TRUE);
+	  if (list)
+	    ggg_notebook_switch_focus_tab (notebook, list);
+	  break;
+	}
+
+      return TRUE;
+    }
+  else
+    return FALSE;
+}
+
+static gboolean
+ggg_notebook_change_current_page (GggNotebook *notebook,
+				  gint         offset)
+{
+  GList *current = NULL;
+
+  if (!notebook->show_tabs)
+    return FALSE;
+
+  if (notebook->cur_page)
+    current = g_list_find (notebook->children, notebook->cur_page);
+
+  while (offset != 0)
+    {
+      current = ggg_notebook_search_page (notebook, current,
+                                          offset < 0 ? STEP_PREV : STEP_NEXT,
+                                          TRUE);
+
+      if (!current)
+        {
+          gboolean wrap_around;
+
+          g_object_get (gtk_widget_get_settings (GTK_WIDGET (notebook)),
+                        "gtk-keynav-wrap-around", &wrap_around,
+                        NULL);
+
+          if (wrap_around)
+            current = ggg_notebook_search_page (notebook, NULL,
+                                                offset < 0 ? STEP_PREV : STEP_NEXT,
+                                                TRUE);
+          else
+            break;
+        }
+
+      offset += offset < 0 ? 1 : -1;
+    }
+
+  if (current)
+    ggg_notebook_switch_page (notebook, current->data);
+  else
+    gtk_widget_error_bell (GTK_WIDGET (notebook));
+
+  return TRUE;
+}
+
+static GtkDirectionType
+get_effective_direction (GggNotebook      *notebook,
+			 GtkDirectionType  direction)
+{
+  /* Remap the directions into the effective direction it would be for a
+   * GTK_POS_TOP notebook
+   */
+
+#define D(rest) GTK_DIR_##rest
+
+  static const GtkDirectionType translate_direction[2][4][6] = {
+    /* LEFT */   {{ D(TAB_FORWARD),  D(TAB_BACKWARD), D(LEFT), D(RIGHT), D(UP),   D(DOWN) },
+    /* RIGHT */  { D(TAB_BACKWARD), D(TAB_FORWARD),  D(LEFT), D(RIGHT), D(DOWN), D(UP)   },
+    /* TOP */    { D(TAB_FORWARD),  D(TAB_BACKWARD), D(UP),   D(DOWN),  D(LEFT), D(RIGHT) },
+    /* BOTTOM */ { D(TAB_BACKWARD), D(TAB_FORWARD),  D(DOWN), D(UP),    D(LEFT), D(RIGHT) }},
+    /* LEFT */  {{ D(TAB_BACKWARD), D(TAB_FORWARD),  D(LEFT), D(RIGHT), D(DOWN), D(UP)   },
+    /* RIGHT */  { D(TAB_FORWARD),  D(TAB_BACKWARD), D(LEFT), D(RIGHT), D(UP),   D(DOWN) },
+    /* TOP */    { D(TAB_FORWARD),  D(TAB_BACKWARD), D(UP),   D(DOWN),  D(RIGHT), D(LEFT) },
+    /* BOTTOM */ { D(TAB_BACKWARD), D(TAB_FORWARD),  D(DOWN), D(UP),    D(RIGHT), D(LEFT) }},
+  };
+
+#undef D
+
+  int text_dir = gtk_widget_get_direction (GTK_WIDGET (notebook)) == GTK_TEXT_DIR_RTL ? 1 : 0;
+
+  return translate_direction[text_dir][notebook->tab_pos][direction];
+}
+
+static gint
+get_effective_tab_pos (GggNotebook *notebook)
+{
+  if (gtk_widget_get_direction (GTK_WIDGET (notebook)) == GTK_TEXT_DIR_RTL)
+    {
+      switch (notebook->tab_pos) 
+	{
+	case GTK_POS_LEFT:
+	  return GTK_POS_RIGHT;
+	case GTK_POS_RIGHT:
+	  return GTK_POS_LEFT;
+	default: ;
+	}
+    }
+
+  return notebook->tab_pos;
+}
+
+static gint
+get_tab_gap_pos (GggNotebook *notebook)
+{
+  gint tab_pos = get_effective_tab_pos (notebook);
+  gint gap_side = GTK_POS_BOTTOM;
+  
+  switch (tab_pos)
+    {
+    case GTK_POS_TOP:
+      gap_side = GTK_POS_BOTTOM;
+      break;
+    case GTK_POS_BOTTOM:
+      gap_side = GTK_POS_TOP;
+      break;
+    case GTK_POS_LEFT:
+      gap_side = GTK_POS_RIGHT;
+      break;
+    case GTK_POS_RIGHT:
+      gap_side = GTK_POS_LEFT;
+      break;
+    }
+
+  return gap_side;
+}
+
+static void
+ggg_notebook_move_focus_out (GggNotebook      *notebook,
+			     GtkDirectionType  direction_type)
+{
+  GtkDirectionType effective_direction = get_effective_direction (notebook, direction_type);
+  GtkWidget *toplevel;
+  
+  if (GTK_CONTAINER (notebook)->focus_child && effective_direction == GTK_DIR_UP)
+    if (focus_tabs_in (notebook))
+      return;
+  if (gtk_widget_is_focus (GTK_WIDGET (notebook)) && effective_direction == GTK_DIR_DOWN)
+    if (focus_child_in (notebook, GTK_DIR_TAB_FORWARD))
+      return;
+
+  /* At this point, we know we should be focusing out of the notebook entirely. We
+   * do this by setting a flag, then propagating the focus motion to the notebook.
+   */
+  toplevel = gtk_widget_get_toplevel (GTK_WIDGET (notebook));
+  if (!GTK_WIDGET_TOPLEVEL (toplevel))
+    return;
+
+  g_object_ref (notebook);
+  
+  notebook->focus_out = TRUE;
+  g_signal_emit_by_name (toplevel, "move_focus", direction_type);
+  notebook->focus_out = FALSE;
+  
+  g_object_unref (notebook);
+}
+
+static gint
+reorder_tab (GggNotebook *notebook, GList *position, GList *tab)
+{
+  GList *elem;
+
+  if (position == tab)
+    return g_list_position (notebook->children, tab);
+
+  /* check that we aren't inserting the tab in the
+   * same relative position, taking packing into account */
+  elem = (position) ? position->prev : g_list_last (notebook->children);
+
+  while (elem && elem != tab && GGG_NOTEBOOK_PAGE (elem)->pack != GGG_NOTEBOOK_PAGE (tab)->pack)
+    elem = elem->prev;
+
+  if (elem == tab)
+    return g_list_position (notebook->children, tab);
+
+  /* now actually reorder the tab */
+  if (notebook->first_tab == tab)
+    notebook->first_tab = ggg_notebook_search_page (notebook, notebook->first_tab,
+						    STEP_NEXT, TRUE);
+
+  notebook->children = g_list_remove_link (notebook->children, tab);
+
+  if (!position)
+    elem = g_list_last (notebook->children);
+  else
+    {
+      elem = position->prev;
+      position->prev = tab;
+    }
+
+  if (elem)
+    elem->next = tab;
+  else
+    notebook->children = tab;
+
+  tab->prev = elem;
+  tab->next = position;
+
+  return g_list_position (notebook->children, tab);
+}
+
+static gboolean
+ggg_notebook_reorder_tab (GggNotebook      *notebook,
+			  GtkDirectionType  direction_type,
+			  gboolean          move_to_last)
+{
+  GtkDirectionType effective_direction = get_effective_direction (notebook, direction_type);
+  GggNotebookPage *page;
+  GList *last, *child;
+  gint page_num;
+
+  if (!gtk_widget_is_focus (GTK_WIDGET (notebook)) || !notebook->show_tabs)
+    return FALSE;
+
+  if (!notebook->cur_page ||
+      !notebook->cur_page->reorderable)
+    return FALSE;
+
+  if (effective_direction != GTK_DIR_LEFT &&
+      effective_direction != GTK_DIR_RIGHT)
+    return FALSE;
+
+  if (move_to_last)
+    {
+      child = notebook->focus_tab;
+
+      do
+	{
+	  last = child;
+	  child = ggg_notebook_search_page (notebook, last, 
+					    (effective_direction == GTK_DIR_RIGHT) ? STEP_NEXT : STEP_PREV,
+					    TRUE);
+	}
+      while (child && GGG_NOTEBOOK_PAGE (last)->pack == GGG_NOTEBOOK_PAGE (child)->pack);
+
+      child = last;
+    }
+  else
+    child = ggg_notebook_search_page (notebook, notebook->focus_tab,
+				      (effective_direction == GTK_DIR_RIGHT) ? STEP_NEXT : STEP_PREV,
+				      TRUE);
+
+  if (!child || child->data == notebook->cur_page)
+    return FALSE;
+
+  page = child->data;
+
+  if (page->pack == notebook->cur_page->pack)
+    {
+      if (effective_direction == GTK_DIR_RIGHT)
+	page_num = reorder_tab (notebook, (page->pack == GTK_PACK_START) ? child->next : child, notebook->focus_tab);
+      else
+	page_num = reorder_tab (notebook, (page->pack == GTK_PACK_START) ? child : child->next, notebook->focus_tab);
+
+      ggg_notebook_pages_allocate (notebook);
+
+      g_signal_emit (notebook,
+		     notebook_signals[PAGE_REORDERED],
+		     0,
+		     ((GggNotebookPage *) notebook->focus_tab->data)->child,
+		     page_num);
+
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+/**
+ * ggg_notebook_new:
+ * 
+ * Creates a new #GggNotebook widget with no pages.
+
+ * Return value: the newly created #GggNotebook
+ **/
+GtkWidget*
+ggg_notebook_new (void)
+{
+  return g_object_new (GGG_TYPE_NOTEBOOK, NULL);
+}
+
+/* Private GtkObject Methods :
+ * 
+ * ggg_notebook_destroy
+ * ggg_notebook_set_arg
+ * ggg_notebook_get_arg
+ */
+static void
+ggg_notebook_destroy (GtkObject *object)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (object);
+  GggNotebookPrivate *priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+  if (notebook->menu)
+    ggg_notebook_popup_disable (notebook);
+
+  if (priv->source_targets)
+    {
+      gtk_target_list_unref (priv->source_targets);
+      priv->source_targets = NULL;
+    }
+
+  if (priv->switch_tab_timer)
+    {
+      g_source_remove (priv->switch_tab_timer);
+      priv->switch_tab_timer = 0;
+    }
+
+  GTK_OBJECT_CLASS (ggg_notebook_parent_class)->destroy (object);
+}
+
+static void
+ggg_notebook_set_property (GObject         *object,
+			   guint            prop_id,
+			   const GValue    *value,
+			   GParamSpec      *pspec)
+{
+  GggNotebook *notebook;
+
+  notebook = GGG_NOTEBOOK (object);
+
+  switch (prop_id)
+    {
+    case PROP_SHOW_TABS:
+      ggg_notebook_set_show_tabs (notebook, g_value_get_boolean (value));
+      break;
+    case PROP_SHOW_BORDER:
+      ggg_notebook_set_show_border (notebook, g_value_get_boolean (value));
+      break;
+    case PROP_SCROLLABLE:
+      ggg_notebook_set_scrollable (notebook, g_value_get_boolean (value));
+      break;
+    case PROP_ENABLE_POPUP:
+      if (g_value_get_boolean (value))
+	ggg_notebook_popup_enable (notebook);
+      else
+	ggg_notebook_popup_disable (notebook);
+      break;
+    case PROP_HOMOGENEOUS:
+      ggg_notebook_set_homogeneous_tabs_internal (notebook, g_value_get_boolean (value));
+      break;  
+    case PROP_PAGE:
+      ggg_notebook_set_current_page (notebook, g_value_get_int (value));
+      break;
+    case PROP_TAB_POS:
+      ggg_notebook_set_tab_pos (notebook, g_value_get_enum (value));
+      break;
+    case PROP_TAB_BORDER:
+      ggg_notebook_set_tab_border_internal (notebook, g_value_get_uint (value));
+      break;
+    case PROP_TAB_HBORDER:
+      ggg_notebook_set_tab_hborder_internal (notebook, g_value_get_uint (value));
+      break;
+    case PROP_TAB_VBORDER:
+      ggg_notebook_set_tab_vborder_internal (notebook, g_value_get_uint (value));
+      break;
+    case PROP_GROUP_ID:
+      ggg_notebook_set_group_id (notebook, g_value_get_int (value));
+      break;
+    case PROP_GROUP:
+      ggg_notebook_set_group (notebook, g_value_get_pointer (value));
+      break;
+    default:
+      break;
+    }
+}
+
+static void
+ggg_notebook_get_property (GObject         *object,
+			   guint            prop_id,
+			   GValue          *value,
+			   GParamSpec      *pspec)
+{
+  GggNotebook *notebook;
+  GggNotebookPrivate *priv;
+
+  notebook = GGG_NOTEBOOK (object);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+  switch (prop_id)
+    {
+    case PROP_SHOW_TABS:
+      g_value_set_boolean (value, notebook->show_tabs);
+      break;
+    case PROP_SHOW_BORDER:
+      g_value_set_boolean (value, notebook->show_border);
+      break;
+    case PROP_SCROLLABLE:
+      g_value_set_boolean (value, notebook->scrollable);
+      break;
+    case PROP_ENABLE_POPUP:
+      g_value_set_boolean (value, notebook->menu != NULL);
+      break;
+    case PROP_HOMOGENEOUS:
+      g_value_set_boolean (value, notebook->homogeneous);
+      break;
+    case PROP_PAGE:
+      g_value_set_int (value, ggg_notebook_get_current_page (notebook));
+      break;
+    case PROP_TAB_POS:
+      g_value_set_enum (value, notebook->tab_pos);
+      break;
+    case PROP_TAB_HBORDER:
+      g_value_set_uint (value, notebook->tab_hborder);
+      break;
+    case PROP_TAB_VBORDER:
+      g_value_set_uint (value, notebook->tab_vborder);
+      break;
+    case PROP_GROUP_ID:
+      g_value_set_int (value, ggg_notebook_get_group_id (notebook));
+      break;
+    case PROP_GROUP:
+      g_value_set_pointer (value, priv->group);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+/* Private GtkWidget Methods :
+ * 
+ * ggg_notebook_map
+ * ggg_notebook_unmap
+ * ggg_notebook_realize
+ * ggg_notebook_size_request
+ * ggg_notebook_size_allocate
+ * ggg_notebook_expose
+ * ggg_notebook_scroll
+ * ggg_notebook_button_press
+ * ggg_notebook_button_release
+ * ggg_notebook_popup_menu
+ * ggg_notebook_leave_notify
+ * ggg_notebook_motion_notify
+ * ggg_notebook_focus_in
+ * ggg_notebook_focus_out
+ * ggg_notebook_draw_focus
+ * ggg_notebook_style_set
+ * ggg_notebook_drag_begin
+ * ggg_notebook_drag_end
+ * ggg_notebook_drag_failed
+ * ggg_notebook_drag_motion
+ * ggg_notebook_drag_drop
+ * ggg_notebook_drag_data_get
+ * ggg_notebook_drag_data_received
+ */
+static gboolean
+ggg_notebook_get_event_window_position (GggNotebook  *notebook,
+					GdkRectangle *rectangle)
+{
+  GtkWidget *widget = GTK_WIDGET (notebook);
+  gint border_width = GTK_CONTAINER (notebook)->border_width;
+  GggNotebookPage *visible_page = NULL;
+  GList *tmp_list;
+  gint tab_pos = get_effective_tab_pos (notebook);
+
+  for (tmp_list = notebook->children; tmp_list; tmp_list = tmp_list->next)
+    {
+      GggNotebookPage *page = tmp_list->data;
+      if (GTK_WIDGET_VISIBLE (page->child))
+	{
+	  visible_page = page;
+	  break;
+	}
+    }
+
+  if (notebook->show_tabs && visible_page)
+    {
+      if (rectangle)
+	{
+	  rectangle->x = widget->allocation.x + border_width;
+	  rectangle->y = widget->allocation.y + border_width;
+	  
+	  switch (tab_pos)
+	    {
+	    case GTK_POS_TOP:
+	    case GTK_POS_BOTTOM:
+	      rectangle->width = widget->allocation.width - 2 * border_width;
+	      rectangle->height = visible_page->requisition.height;
+	      if (tab_pos == GTK_POS_BOTTOM)
+		rectangle->y += widget->allocation.height - 2 * border_width - rectangle->height;
+	      break;
+	    case GTK_POS_LEFT:
+	    case GTK_POS_RIGHT:
+	      rectangle->width = visible_page->requisition.width;
+	      rectangle->height = widget->allocation.height - 2 * border_width;
+	      if (tab_pos == GTK_POS_RIGHT)
+		rectangle->x += widget->allocation.width - 2 * border_width - rectangle->width;
+	      break;
+	    }
+	}
+
+      return TRUE;
+    }
+  else
+    {
+      if (rectangle)
+	{
+	  rectangle->x = rectangle->y = 0;
+	  rectangle->width = rectangle->height = 10;
+	}
+    }
+
+  return FALSE;
+}
+
+static void
+ggg_notebook_map (GtkWidget *widget)
+{
+  GggNotebook *notebook;
+  GggNotebookPage *page;
+  GList *children;
+
+  GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+
+  notebook = GGG_NOTEBOOK (widget);
+
+  if (notebook->cur_page && 
+      GTK_WIDGET_VISIBLE (notebook->cur_page->child) &&
+      !GTK_WIDGET_MAPPED (notebook->cur_page->child))
+    gtk_widget_map (notebook->cur_page->child);
+
+  if (notebook->scrollable)
+    ggg_notebook_pages_allocate (notebook);
+  else
+    {
+      children = notebook->children;
+
+      while (children)
+	{
+	  page = children->data;
+	  children = children->next;
+
+	  if (page->tab_label &&
+	      GTK_WIDGET_VISIBLE (page->tab_label) &&
+	      !GTK_WIDGET_MAPPED (page->tab_label))
+	    gtk_widget_map (page->tab_label);
+	}
+    }
+
+  if (ggg_notebook_get_event_window_position (notebook, NULL))
+    gdk_window_show_unraised (notebook->event_window);
+}
+
+static void
+ggg_notebook_unmap (GtkWidget *widget)
+{
+  stop_scrolling (GGG_NOTEBOOK (widget));
+  
+  GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+
+  gdk_window_hide (GGG_NOTEBOOK (widget)->event_window);
+
+  GTK_WIDGET_CLASS (ggg_notebook_parent_class)->unmap (widget);
+}
+
+static void
+ggg_notebook_realize (GtkWidget *widget)
+{
+  GggNotebook *notebook;
+  GdkWindowAttr attributes;
+  gint attributes_mask;
+  GdkRectangle event_window_pos;
+
+  notebook = GGG_NOTEBOOK (widget);
+  GTK_WIDGET_SET_FLAGS (notebook, GTK_REALIZED);
+
+  ggg_notebook_get_event_window_position (notebook, &event_window_pos);
+  
+  widget->window = gtk_widget_get_parent_window (widget);
+  g_object_ref (widget->window);
+  
+  attributes.window_type = GDK_WINDOW_CHILD;
+  attributes.x = event_window_pos.x;
+  attributes.y = event_window_pos.y;
+  attributes.width = event_window_pos.width;
+  attributes.height = event_window_pos.height;
+  attributes.wclass = GDK_INPUT_ONLY;
+  attributes.event_mask = gtk_widget_get_events (widget);
+  attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
+			    GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK |
+			    GDK_POINTER_MOTION_MASK | GDK_LEAVE_NOTIFY_MASK |
+			    GDK_SCROLL_MASK);
+  attributes_mask = GDK_WA_X | GDK_WA_Y;
+
+  notebook->event_window = gdk_window_new (gtk_widget_get_parent_window (widget), 
+					   &attributes, attributes_mask);
+  gdk_window_set_user_data (notebook->event_window, notebook);
+
+  widget->style = gtk_style_attach (widget->style, widget->window);
+}
+
+static void
+ggg_notebook_unrealize (GtkWidget *widget)
+{
+  GggNotebook *notebook;
+  GggNotebookPrivate *priv;
+
+  notebook = GGG_NOTEBOOK (widget);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (widget);
+
+  gdk_window_set_user_data (notebook->event_window, NULL);
+  gdk_window_destroy (notebook->event_window);
+  notebook->event_window = NULL;
+
+  if (priv->drag_window)
+    {
+      gdk_window_set_user_data (priv->drag_window, NULL);
+      gdk_window_destroy (priv->drag_window);
+      priv->drag_window = NULL;
+    }
+
+  if (GTK_WIDGET_CLASS (ggg_notebook_parent_class)->unrealize)
+    (* GTK_WIDGET_CLASS (ggg_notebook_parent_class)->unrealize) (widget);
+}
+
+static void
+ggg_notebook_size_request (GtkWidget      *widget,
+			   GtkRequisition *requisition)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+  GggNotebookPage *page;
+  GList *children;
+  GtkRequisition child_requisition;
+  gboolean switch_page = FALSE;
+  gint vis_pages;
+  gint focus_width;
+  gint tab_overlap;
+  gint tab_curvature;
+  gint arrow_spacing;
+  gint scroll_arrow_hlength;
+  gint scroll_arrow_vlength;
+
+  gtk_widget_style_get (widget,
+                        "focus-line-width", &focus_width,
+			"tab-overlap", &tab_overlap,
+			"tab-curvature", &tab_curvature,
+                        "arrow-spacing", &arrow_spacing,
+                        "scroll-arrow-hlength", &scroll_arrow_hlength,
+                        "scroll-arrow-vlength", &scroll_arrow_vlength,
+			NULL);
+
+  widget->requisition.width = 0;
+  widget->requisition.height = 0;
+
+  for (children = notebook->children, vis_pages = 0; children;
+       children = children->next)
+    {
+      page = children->data;
+
+      if (GTK_WIDGET_VISIBLE (page->child))
+	{
+	  vis_pages++;
+	  gtk_widget_size_request (page->child, &child_requisition);
+	  
+	  widget->requisition.width = MAX (widget->requisition.width,
+					   child_requisition.width);
+	  widget->requisition.height = MAX (widget->requisition.height,
+					    child_requisition.height);
+
+	  if (notebook->menu && page->menu_label->parent &&
+	      !GTK_WIDGET_VISIBLE (page->menu_label->parent))
+	    gtk_widget_show (page->menu_label->parent);
+	}
+      else
+	{
+	  if (page == notebook->cur_page)
+	    switch_page = TRUE;
+	  if (notebook->menu && page->menu_label->parent &&
+	      GTK_WIDGET_VISIBLE (page->menu_label->parent))
+	    gtk_widget_hide (page->menu_label->parent);
+	}
+    }
+
+  if (notebook->show_border || notebook->show_tabs)
+    {
+      widget->requisition.width += widget->style->xthickness * 2;
+      widget->requisition.height += widget->style->ythickness * 2;
+
+      if (notebook->show_tabs)
+	{
+	  gint tab_width = 0;
+	  gint tab_height = 0;
+	  gint tab_max = 0;
+	  gint padding;
+	  
+	  for (children = notebook->children; children;
+	       children = children->next)
+	    {
+	      page = children->data;
+	      
+	      if (GTK_WIDGET_VISIBLE (page->child))
+		{
+		  if (!GTK_WIDGET_VISIBLE (page->tab_label))
+		    gtk_widget_show (page->tab_label);
+
+		  gtk_widget_size_request (page->tab_label,
+					   &child_requisition);
+
+		  page->requisition.width = 
+		    child_requisition.width +
+		    2 * widget->style->xthickness;
+		  page->requisition.height = 
+		    child_requisition.height +
+		    2 * widget->style->ythickness;
+		  
+		  switch (notebook->tab_pos)
+		    {
+		    case GTK_POS_TOP:
+		    case GTK_POS_BOTTOM:
+		      page->requisition.height += 2 * (notebook->tab_vborder +
+						       focus_width);
+		      tab_height = MAX (tab_height, page->requisition.height);
+		      tab_max = MAX (tab_max, page->requisition.width);
+		      break;
+		    case GTK_POS_LEFT:
+		    case GTK_POS_RIGHT:
+		      page->requisition.width += 2 * (notebook->tab_hborder +
+						      focus_width);
+		      tab_width = MAX (tab_width, page->requisition.width);
+		      tab_max = MAX (tab_max, page->requisition.height);
+		      break;
+		    }
+		}
+	      else if (GTK_WIDGET_VISIBLE (page->tab_label))
+		gtk_widget_hide (page->tab_label);
+	    }
+
+	  children = notebook->children;
+
+	  if (vis_pages)
+	    {
+	      switch (notebook->tab_pos)
+		{
+		case GTK_POS_TOP:
+		case GTK_POS_BOTTOM:
+		  if (tab_height == 0)
+		    break;
+
+		  if (notebook->scrollable && vis_pages > 1 && 
+		      widget->requisition.width < tab_width)
+		    tab_height = MAX (tab_height, scroll_arrow_hlength);
+
+		  padding = 2 * (tab_curvature + focus_width +
+				 notebook->tab_hborder) - tab_overlap;
+		  tab_max += padding;
+		  while (children)
+		    {
+		      page = children->data;
+		      children = children->next;
+		  
+		      if (!GTK_WIDGET_VISIBLE (page->child))
+			continue;
+
+		      if (notebook->homogeneous)
+			page->requisition.width = tab_max;
+		      else
+			page->requisition.width += padding;
+
+		      tab_width += page->requisition.width;
+		      page->requisition.height = tab_height;
+		    }
+
+		  if (notebook->scrollable && vis_pages > 1 &&
+		      widget->requisition.width < tab_width)
+		    tab_width = tab_max + 2 * (scroll_arrow_hlength + arrow_spacing);
+
+                  if (notebook->homogeneous && !notebook->scrollable)
+                    widget->requisition.width = MAX (widget->requisition.width,
+                                                     vis_pages * tab_max +
+                                                     tab_overlap);
+                  else
+                    widget->requisition.width = MAX (widget->requisition.width,
+                                                     tab_width + tab_overlap);
+
+		  widget->requisition.height += tab_height;
+		  break;
+		case GTK_POS_LEFT:
+		case GTK_POS_RIGHT:
+		  if (tab_width == 0)
+		    break;
+
+		  if (notebook->scrollable && vis_pages > 1 && 
+		      widget->requisition.height < tab_height)
+		    tab_width = MAX (tab_width,
+                                     arrow_spacing + 2 * scroll_arrow_vlength);
+
+		  padding = 2 * (tab_curvature + focus_width +
+				 notebook->tab_vborder) - tab_overlap;
+		  tab_max += padding;
+
+		  while (children)
+		    {
+		      page = children->data;
+		      children = children->next;
+
+		      if (!GTK_WIDGET_VISIBLE (page->child))
+			continue;
+
+		      page->requisition.width   = tab_width;
+
+		      if (notebook->homogeneous)
+			page->requisition.height = tab_max;
+		      else
+			page->requisition.height += padding;
+
+		      tab_height += page->requisition.height;
+		    }
+
+		  if (notebook->scrollable && vis_pages > 1 && 
+		      widget->requisition.height < tab_height)
+		    tab_height = tab_max + (2 * scroll_arrow_vlength + arrow_spacing);
+
+		  widget->requisition.width += tab_width;
+
+                  if (notebook->homogeneous && !notebook->scrollable)
+                    widget->requisition.height =
+		      MAX (widget->requisition.height,
+			   vis_pages * tab_max + tab_overlap);
+                  else
+                    widget->requisition.height =
+		      MAX (widget->requisition.height,
+			   tab_height + tab_overlap);
+
+		  if (!notebook->homogeneous || notebook->scrollable)
+		    vis_pages = 1;
+		  widget->requisition.height = MAX (widget->requisition.height,
+						    vis_pages * tab_max +
+						    tab_overlap);
+		  break;
+		}
+	    }
+	}
+      else
+	{
+	  for (children = notebook->children; children;
+	       children = children->next)
+	    {
+	      page = children->data;
+	      
+	      if (page->tab_label && GTK_WIDGET_VISIBLE (page->tab_label))
+		gtk_widget_hide (page->tab_label);
+	    }
+	}
+    }
+
+  widget->requisition.width += GTK_CONTAINER (widget)->border_width * 2;
+  widget->requisition.height += GTK_CONTAINER (widget)->border_width * 2;
+
+  if (switch_page)
+    {
+      if (vis_pages)
+	{
+	  for (children = notebook->children; children;
+	       children = children->next)
+	    {
+	      page = children->data;
+	      if (GTK_WIDGET_VISIBLE (page->child))
+		{
+		  ggg_notebook_switch_page (notebook, page);
+		  break;
+		}
+	    }
+	}
+      else if (GTK_WIDGET_VISIBLE (widget))
+	{
+	  widget->requisition.width = GTK_CONTAINER (widget)->border_width * 2;
+	  widget->requisition.height= GTK_CONTAINER (widget)->border_width * 2;
+	}
+    }
+  if (vis_pages && !notebook->cur_page)
+    {
+      children = ggg_notebook_search_page (notebook, NULL, STEP_NEXT, TRUE);
+      if (children)
+	{
+	  notebook->first_tab = children;
+	  ggg_notebook_switch_page (notebook, GGG_NOTEBOOK_PAGE (children));
+	}
+    }
+}
+
+static void
+ggg_notebook_size_allocate (GtkWidget     *widget,
+			    GtkAllocation *allocation)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+  gint tab_pos = get_effective_tab_pos (notebook);
+
+  widget->allocation = *allocation;
+  if (GTK_WIDGET_REALIZED (widget))
+    {
+      GdkRectangle position;
+
+      if (ggg_notebook_get_event_window_position (notebook, &position))
+	{
+	  gdk_window_move_resize (notebook->event_window,
+				  position.x, position.y,
+				  position.width, position.height);
+	  if (GTK_WIDGET_MAPPED (notebook))
+	    gdk_window_show_unraised (notebook->event_window);
+	}
+      else
+	gdk_window_hide (notebook->event_window);
+    }
+
+  if (notebook->children)
+    {
+      gint border_width = GTK_CONTAINER (widget)->border_width;
+      GggNotebookPage *page;
+      GtkAllocation child_allocation;
+      GList *children;
+      
+      child_allocation.x = widget->allocation.x + border_width;
+      child_allocation.y = widget->allocation.y + border_width;
+      child_allocation.width = MAX (1, allocation->width - border_width * 2);
+      child_allocation.height = MAX (1, allocation->height - border_width * 2);
+
+      if (notebook->show_tabs || notebook->show_border)
+	{
+	  child_allocation.x += widget->style->xthickness;
+	  child_allocation.y += widget->style->ythickness;
+	  child_allocation.width = MAX (1, child_allocation.width -
+					widget->style->xthickness * 2);
+	  child_allocation.height = MAX (1, child_allocation.height -
+					 widget->style->ythickness * 2);
+
+	  if (notebook->show_tabs && notebook->children && notebook->cur_page)
+	    {
+	      switch (tab_pos)
+		{
+		case GTK_POS_TOP:
+		  child_allocation.y += notebook->cur_page->requisition.height;
+		case GTK_POS_BOTTOM:
+		  child_allocation.height =
+		    MAX (1, child_allocation.height -
+			 notebook->cur_page->requisition.height);
+		  break;
+		case GTK_POS_LEFT:
+		  child_allocation.x += notebook->cur_page->requisition.width;
+		case GTK_POS_RIGHT:
+		  child_allocation.width =
+		    MAX (1, child_allocation.width -
+			 notebook->cur_page->requisition.width);
+		  break;
+		}
+	    }
+	}
+
+      children = notebook->children;
+      while (children)
+	{
+	  page = children->data;
+	  children = children->next;
+	  
+	  if (GTK_WIDGET_VISIBLE (page->child))
+	    gtk_widget_size_allocate (page->child, &child_allocation);
+	}
+
+      ggg_notebook_pages_allocate (notebook);
+    }
+}
+
+static gint
+ggg_notebook_expose (GtkWidget      *widget,
+		     GdkEventExpose *event)
+{
+  GggNotebook *notebook;
+  GggNotebookPrivate *priv;
+
+  notebook = GGG_NOTEBOOK (widget);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (widget);
+
+  if (event->window == priv->drag_window)
+    {
+      GdkRectangle area = { 0, };
+
+      gdk_drawable_get_size (priv->drag_window,
+			     &area.width, &area.height);
+      ggg_notebook_draw_tab (notebook,
+			     notebook->cur_page,
+			     &area);
+      ggg_notebook_draw_focus (widget, event);
+      gtk_container_propagate_expose (GTK_CONTAINER (notebook),
+				      notebook->cur_page->tab_label, event);
+    }
+  else if (GTK_WIDGET_DRAWABLE (widget))
+    {
+      ggg_notebook_paint (widget, &event->area);
+      if (notebook->show_tabs)
+	{
+	  GggNotebookPage *page;
+	  GList *pages;
+
+	  ggg_notebook_draw_focus (widget, event);
+	  pages = notebook->children;
+
+	  while (pages)
+	    {
+	      page = GGG_NOTEBOOK_PAGE (pages);
+	      pages = pages->next;
+
+	      if (page->tab_label->window == event->window &&
+		  GTK_WIDGET_DRAWABLE (page->tab_label))
+		gtk_container_propagate_expose (GTK_CONTAINER (notebook),
+						page->tab_label, event);
+	    }
+	}
+
+      if (notebook->cur_page)
+	gtk_container_propagate_expose (GTK_CONTAINER (notebook),
+					notebook->cur_page->child,
+					event);
+    }
+
+  return FALSE;
+}
+
+static gboolean
+ggg_notebook_show_arrows (GggNotebook *notebook)
+{
+  gboolean show_arrow = FALSE;
+  GList *children;
+  
+  if (!notebook->scrollable)
+    return FALSE;
+
+  children = notebook->children;
+  while (children)
+    {
+      GggNotebookPage *page = children->data;
+
+      if (page->tab_label && !gtk_widget_get_child_visible (page->tab_label))
+	show_arrow = TRUE;
+
+      children = children->next;
+    }
+
+  return show_arrow;
+}
+
+static void
+ggg_notebook_get_arrow_rect (GggNotebook     *notebook,
+			     GdkRectangle    *rectangle,
+			     GggNotebookArrow arrow)
+{
+  GdkRectangle event_window_pos;
+  gboolean before = ARROW_IS_BEFORE (arrow);
+  gboolean left = ARROW_IS_LEFT (arrow);
+
+  if (ggg_notebook_get_event_window_position (notebook, &event_window_pos))
+    {
+      gint scroll_arrow_hlength;
+      gint scroll_arrow_vlength;
+
+      gtk_widget_style_get (GTK_WIDGET (notebook),
+                            "scroll-arrow-hlength", &scroll_arrow_hlength,
+                            "scroll-arrow-vlength", &scroll_arrow_vlength,
+                            NULL);
+
+      switch (notebook->tab_pos)
+	{
+	case GTK_POS_LEFT:
+	case GTK_POS_RIGHT:
+          rectangle->width = scroll_arrow_vlength;
+          rectangle->height = scroll_arrow_vlength;
+
+	  if ((before && (notebook->has_before_previous != notebook->has_before_next)) ||
+	      (!before && (notebook->has_after_previous != notebook->has_after_next))) 
+	  rectangle->x = event_window_pos.x + (event_window_pos.width - rectangle->width) / 2;
+	  else if (left)
+	    rectangle->x = event_window_pos.x + event_window_pos.width / 2 - rectangle->width;
+	  else 
+	    rectangle->x = event_window_pos.x + event_window_pos.width / 2;
+	  rectangle->y = event_window_pos.y;
+	  if (!before)
+	    rectangle->y += event_window_pos.height - rectangle->height;
+	  break;
+
+	case GTK_POS_TOP:
+	case GTK_POS_BOTTOM:
+          rectangle->width = scroll_arrow_hlength;
+          rectangle->height = scroll_arrow_hlength;
+
+	  if (before)
+	    {
+	      if (left || !notebook->has_before_previous)
+		rectangle->x = event_window_pos.x;
+	      else
+		rectangle->x = event_window_pos.x + rectangle->width;
+	    }
+	  else
+	    {
+	      if (!left || !notebook->has_after_next)
+		rectangle->x = event_window_pos.x + event_window_pos.width - rectangle->width;
+	      else
+		rectangle->x = event_window_pos.x + event_window_pos.width - 2 * rectangle->width;
+	    }
+	  rectangle->y = event_window_pos.y + (event_window_pos.height - rectangle->height) / 2;
+	  break;
+	}
+    }
+}
+
+static GggNotebookArrow
+ggg_notebook_get_arrow (GggNotebook *notebook,
+			gint         x,
+			gint         y)
+{
+  GdkRectangle arrow_rect;
+  GdkRectangle event_window_pos;
+  gint i;
+  gint x0, y0;
+  GggNotebookArrow arrow[4];
+
+  arrow[0] = notebook->has_before_previous ? ARROW_LEFT_BEFORE : ARROW_NONE;
+  arrow[1] = notebook->has_before_next ? ARROW_RIGHT_BEFORE : ARROW_NONE;
+  arrow[2] = notebook->has_after_previous ? ARROW_LEFT_AFTER : ARROW_NONE;
+  arrow[3] = notebook->has_after_next ? ARROW_RIGHT_AFTER : ARROW_NONE;
+
+  if (ggg_notebook_show_arrows (notebook))
+    {
+      ggg_notebook_get_event_window_position (notebook, &event_window_pos);
+      for (i = 0; i < 4; i++) 
+	{ 
+	  if (arrow[i] == ARROW_NONE)
+	    continue;
+      
+	  ggg_notebook_get_arrow_rect (notebook, &arrow_rect, arrow[i]);
+      
+	  x0 = x - arrow_rect.x;
+	  y0 = y - arrow_rect.y;
+
+	  if (y0 >= 0 && y0 < arrow_rect.height &&
+	      x0 >= 0 && x0 < arrow_rect.width)
+	    return arrow[i];
+	}
+    }
+
+  return ARROW_NONE;
+}
+
+static void
+ggg_notebook_do_arrow (GggNotebook     *notebook,
+		       GggNotebookArrow arrow)
+{
+  GtkWidget *widget = GTK_WIDGET (notebook);
+  GtkDirectionType dir;
+  gboolean is_rtl, left;
+
+  is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
+  left = (ARROW_IS_LEFT (arrow) && !is_rtl) || 
+         (!ARROW_IS_LEFT (arrow) && is_rtl);
+
+  if (!notebook->focus_tab ||
+      ggg_notebook_search_page (notebook, notebook->focus_tab,
+				left ? STEP_PREV : STEP_NEXT,
+				TRUE))
+    {
+      if (notebook->tab_pos == GTK_POS_LEFT ||
+	  notebook->tab_pos == GTK_POS_RIGHT)
+	dir = ARROW_IS_LEFT (arrow) ? GTK_DIR_UP : GTK_DIR_DOWN;
+      else
+	dir = ARROW_IS_LEFT (arrow) ? GTK_DIR_LEFT : GTK_DIR_RIGHT;
+
+      gtk_widget_grab_focus (widget);
+      gtk_widget_child_focus (widget, dir);
+    }
+}
+
+static gboolean
+ggg_notebook_arrow_button_press (GggNotebook      *notebook,
+				 GggNotebookArrow  arrow,
+				 gint              button)
+{
+  GtkWidget *widget = GTK_WIDGET (notebook);
+  gboolean is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
+  gboolean left = (ARROW_IS_LEFT (arrow) && !is_rtl) || 
+                  (!ARROW_IS_LEFT (arrow) && is_rtl);
+
+  if (!GTK_WIDGET_HAS_FOCUS (widget))
+    gtk_widget_grab_focus (widget);
+  
+  notebook->button = button;
+  notebook->click_child = arrow;
+
+  if (button == 1)
+    {
+      ggg_notebook_do_arrow (notebook, arrow);
+      ggg_notebook_set_scroll_timer (notebook);
+    }
+  else if (button == 2)
+    ggg_notebook_page_select (notebook, TRUE);
+  else if (button == 3)
+    ggg_notebook_switch_focus_tab (notebook,
+				   ggg_notebook_search_page (notebook,
+							     NULL,
+							     left ? STEP_NEXT : STEP_PREV,
+							     TRUE));
+  ggg_notebook_redraw_arrows (notebook);
+
+  return TRUE;
+}
+
+static gboolean
+get_widget_coordinates (GtkWidget *widget,
+			GdkEvent  *event,
+			gint      *x,
+			gint      *y)
+{
+  GdkWindow *window = ((GdkEventAny *)event)->window;
+  gdouble tx, ty;
+
+  if (!gdk_event_get_coords (event, &tx, &ty))
+    return FALSE;
+
+  while (window && window != widget->window)
+    {
+      gint window_x, window_y;
+
+      gdk_window_get_position (window, &window_x, &window_y);
+      tx += window_x;
+      ty += window_y;
+
+      window = gdk_window_get_parent (window);
+    }
+
+  if (window)
+    {
+      *x = tx;
+      *y = ty;
+
+      return TRUE;
+    }
+  else
+    return FALSE;
+}
+
+static gboolean
+ggg_notebook_scroll (GtkWidget      *widget,
+                     GdkEventScroll *event)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+
+  GtkWidget* child;
+  GtkWidget* originator;
+
+  if (!notebook->cur_page)
+    return FALSE;
+
+  child = notebook->cur_page->child;
+  originator = gtk_get_event_widget ((GdkEvent *)event);
+
+  /* ignore scroll events from the content of the page */
+  if (!originator || gtk_widget_is_ancestor (originator, child) || originator == child)
+    return FALSE;
+  
+  switch (event->direction)
+    {
+    case GDK_SCROLL_RIGHT:
+    case GDK_SCROLL_DOWN:
+      ggg_notebook_next_page (notebook);
+      break;
+    case GDK_SCROLL_LEFT:
+    case GDK_SCROLL_UP:
+      ggg_notebook_prev_page (notebook);
+      break;
+    }
+
+  return TRUE;
+}
+
+static GList*
+get_tab_at_pos (GggNotebook *notebook, gint x, gint y)
+{
+  GggNotebookPage *page;
+  GList *children = notebook->children;
+
+  while (children)
+    {
+      page = children->data;
+      
+      if (GTK_WIDGET_VISIBLE (page->child) &&
+	  page->tab_label && GTK_WIDGET_MAPPED (page->tab_label) &&
+	  (x >= page->allocation.x) &&
+	  (y >= page->allocation.y) &&
+	  (x <= (page->allocation.x + page->allocation.width)) &&
+	  (y <= (page->allocation.y + page->allocation.height)))
+	return children;
+
+      children = children->next;
+    }
+
+  return NULL;
+}
+
+static gboolean
+ggg_notebook_button_press (GtkWidget      *widget,
+			   GdkEventButton *event)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+  GggNotebookPrivate *priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  GggNotebookPage *page;
+  GList *tab;
+  GggNotebookArrow arrow;
+  gint x, y;
+
+  if (event->type != GDK_BUTTON_PRESS || !notebook->children ||
+      notebook->button)
+    return FALSE;
+
+  if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y))
+    return FALSE;
+
+  arrow = ggg_notebook_get_arrow (notebook, x, y);
+  if (arrow)
+    return ggg_notebook_arrow_button_press (notebook, arrow, event->button);
+
+  if (event->button == 3 && notebook->menu)
+    {
+      gtk_menu_popup (GTK_MENU (notebook->menu), NULL, NULL, 
+		      NULL, NULL, 3, event->time);
+      return TRUE;
+    }
+
+  if (event->button != 1)
+    return FALSE;
+
+  notebook->button = event->button;
+
+  if ((tab = get_tab_at_pos (notebook, x, y)) != NULL)
+    {
+      gboolean page_changed, was_focus;
+
+      page = tab->data;
+      page_changed = page != notebook->cur_page;
+      was_focus = gtk_widget_is_focus (widget);
+
+      ggg_notebook_switch_focus_tab (notebook, tab);
+      gtk_widget_grab_focus (widget);
+
+      if (page_changed && !was_focus)
+	gtk_widget_child_focus (page->child, GTK_DIR_TAB_FORWARD);
+
+      /* save press to possibly begin a drag */
+      if (page->reorderable || page->detachable)
+	{
+	  priv->during_detach = FALSE;
+	  priv->during_reorder = FALSE;
+	  priv->pressed_button = event->button;
+
+	  gdk_window_get_pointer (widget->window,
+				  &priv->mouse_x,
+				  &priv->mouse_y,
+				  NULL);
+
+	  priv->drag_begin_x = priv->mouse_x;
+	  priv->drag_begin_y = priv->mouse_y;
+	  priv->drag_offset_x = priv->drag_begin_x - page->allocation.x;
+	  priv->drag_offset_y = priv->drag_begin_y - page->allocation.y;
+	}
+    }
+
+  return TRUE;
+}
+
+static void
+popup_position_func (GtkMenu  *menu,
+                     gint     *x,
+                     gint     *y,
+                     gboolean *push_in,
+                     gpointer  data)
+{
+  GggNotebook *notebook = data;
+  GtkWidget *w;
+  GtkRequisition requisition;
+
+  if (notebook->focus_tab)
+    {
+      GggNotebookPage *page;
+
+      page = notebook->focus_tab->data;
+      w = page->tab_label;
+    }
+  else
+   {
+     w = GTK_WIDGET (notebook);
+   }
+
+  gdk_window_get_origin (w->window, x, y);
+  gtk_widget_size_request (GTK_WIDGET (menu), &requisition);
+
+  if (gtk_widget_get_direction (w) == GTK_TEXT_DIR_RTL)
+    *x += w->allocation.x + w->allocation.width - requisition.width;
+  else
+    *x += w->allocation.x;
+
+  *y += w->allocation.y + w->allocation.height;
+
+  *push_in = FALSE;
+}
+
+static gboolean
+ggg_notebook_popup_menu (GtkWidget *widget)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+
+  if (notebook->menu)
+    {
+      gtk_menu_popup (GTK_MENU (notebook->menu), NULL, NULL, 
+		      popup_position_func, notebook,
+		      0, gtk_get_current_event_time ());
+      gtk_menu_shell_select_first (GTK_MENU_SHELL (notebook->menu), FALSE);
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void 
+stop_scrolling (GggNotebook *notebook)
+{
+  if (notebook->timer)
+    {
+      g_source_remove (notebook->timer);
+      notebook->timer = 0;
+      notebook->need_timer = FALSE;
+    }
+  notebook->click_child = 0;
+  notebook->button = 0;
+  ggg_notebook_redraw_arrows (notebook);
+}
+
+static GList*
+get_drop_position (GggNotebook *notebook,
+		   guint        pack)
+{
+  GggNotebookPrivate *priv;
+  GList *children, *last_child;
+  GggNotebookPage *page;
+  gboolean is_rtl;
+  gint x, y;
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  x = priv->mouse_x;
+  y = priv->mouse_y;
+
+  is_rtl = gtk_widget_get_direction ((GtkWidget *) notebook) == GTK_TEXT_DIR_RTL;
+  children = notebook->children;
+  last_child = NULL;
+
+  while (children)
+    {
+      page = children->data;
+
+      if ((priv->operation != DRAG_OPERATION_REORDER || page != notebook->cur_page) &&
+	  GTK_WIDGET_VISIBLE (page->child) &&
+	  page->tab_label &&
+	  GTK_WIDGET_MAPPED (page->tab_label) &&
+	  page->pack == pack)
+	{
+	  switch (notebook->tab_pos)
+	    {
+	    case GTK_POS_TOP:
+	    case GTK_POS_BOTTOM:
+	      if (!is_rtl)
+		{
+		  if ((page->pack == GTK_PACK_START && PAGE_MIDDLE_X (page) > x) ||
+		      (page->pack == GTK_PACK_END && PAGE_MIDDLE_X (page) < x))
+		    return children;
+		}
+	      else
+		{
+		  if ((page->pack == GTK_PACK_START && PAGE_MIDDLE_X (page) < x) ||
+		      (page->pack == GTK_PACK_END && PAGE_MIDDLE_X (page) > x))
+		    return children;
+		}
+
+	      break;
+	    case GTK_POS_LEFT:
+	    case GTK_POS_RIGHT:
+	      if ((page->pack == GTK_PACK_START && PAGE_MIDDLE_Y (page) > y) ||
+		  (page->pack == GTK_PACK_END && PAGE_MIDDLE_Y (page) < y))
+		return children;
+
+	      break;
+	    }
+
+	  last_child = children->next;
+	}
+
+      children = children->next;
+    }
+
+  return last_child;
+}
+
+static void
+show_drag_window (GggNotebook        *notebook,
+		  GggNotebookPrivate *priv,
+		  GggNotebookPage    *page)
+{
+  GtkWidget *widget = GTK_WIDGET (notebook);
+
+  if (!priv->drag_window)
+    {
+      GdkWindowAttr attributes;
+      guint attributes_mask;
+
+      attributes.x = page->allocation.x;
+      attributes.y = page->allocation.y;
+      attributes.width = page->allocation.width;
+      attributes.height = page->allocation.height;
+      attributes.window_type = GDK_WINDOW_CHILD;
+      attributes.wclass = GDK_INPUT_OUTPUT;
+      attributes.visual = gtk_widget_get_visual (widget);
+      attributes.colormap = gtk_widget_get_colormap (widget);
+      attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
+      attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+
+      priv->drag_window = gdk_window_new (gtk_widget_get_parent_window (widget),
+					  &attributes,
+					  attributes_mask);
+      gdk_window_set_user_data (priv->drag_window, widget);
+    }
+
+  g_object_ref (page->tab_label);
+  gtk_widget_unparent (page->tab_label);
+  gtk_widget_set_parent_window (page->tab_label, priv->drag_window);
+  gtk_widget_set_parent (page->tab_label, widget);
+  g_object_unref (page->tab_label);
+
+  gdk_window_show (priv->drag_window);
+
+  /* the grab will dissapear when the window is hidden */
+  gdk_pointer_grab (priv->drag_window,
+		    FALSE,
+		    GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
+		    NULL, NULL, GDK_CURRENT_TIME);
+}
+
+/* This function undoes the reparenting that happens both when drag_window
+ * is shown for reordering and when the DnD icon is shown for detaching
+ */
+static void
+hide_drag_window (GggNotebook        *notebook,
+		  GggNotebookPrivate *priv,
+		  GggNotebookPage    *page)
+{
+  GtkWidget *widget = GTK_WIDGET (notebook);
+  GtkWidget *parent = page->tab_label->parent;
+
+  if (page->tab_label->window != widget->window ||
+      !NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page))
+    {
+      g_object_ref (page->tab_label);
+
+      if (GTK_IS_WINDOW (parent))
+	{
+	  /* parent widget is the drag window */
+	  gtk_container_remove (GTK_CONTAINER (parent), page->tab_label);
+	}
+      else
+	gtk_widget_unparent (page->tab_label);
+
+      gtk_widget_set_parent_window (page->tab_label, widget->window);
+      gtk_widget_set_parent (page->tab_label, widget);
+      g_object_unref (page->tab_label);
+    }
+
+  if (priv->drag_window &&
+      gdk_window_is_visible (priv->drag_window))
+    gdk_window_hide (priv->drag_window);
+}
+
+static void
+ggg_notebook_stop_reorder (GggNotebook *notebook)
+{
+  GggNotebookPrivate *priv;
+  GggNotebookPage *page;
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+  if (priv->operation == DRAG_OPERATION_DETACH)
+    page = priv->detached_tab;
+  else
+    page = notebook->cur_page;
+
+  if (!page || !page->tab_label)
+    return;
+
+  priv->pressed_button = -1;
+
+  if (page->reorderable || page->detachable)
+    {
+      if (priv->during_reorder)
+	{
+	  gint old_page_num, page_num;
+	  GList *element;
+
+	  element = get_drop_position (notebook, page->pack);
+	  old_page_num = g_list_position (notebook->children, notebook->focus_tab);
+	  page_num = reorder_tab (notebook, element, notebook->focus_tab);
+          ggg_notebook_child_reordered (notebook, page);
+          
+	  if (priv->has_scrolled || old_page_num != page_num)
+	    g_signal_emit (notebook,
+			   notebook_signals[PAGE_REORDERED], 0,
+			   page->child, page_num);
+
+	  priv->has_scrolled = FALSE;
+          priv->during_reorder = FALSE; 
+	}
+
+      hide_drag_window (notebook, priv, page);
+
+      priv->operation = DRAG_OPERATION_NONE;
+      ggg_notebook_pages_allocate (notebook);
+
+      if (priv->dnd_timer)
+	{
+	  g_source_remove (priv->dnd_timer);
+	  priv->dnd_timer = 0;
+	}
+    }
+}
+
+static gint
+ggg_notebook_button_release (GtkWidget      *widget,
+			     GdkEventButton *event)
+{
+  GggNotebook *notebook;
+  GggNotebookPrivate *priv;
+  GggNotebookPage *page;
+
+  if (event->type != GDK_BUTTON_RELEASE)
+    return FALSE;
+
+  notebook = GGG_NOTEBOOK (widget);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  page = notebook->cur_page;
+
+  if (!priv->during_detach &&
+      page->reorderable &&
+      event->button == priv->pressed_button)
+    ggg_notebook_stop_reorder (notebook);
+
+  if (event->button == notebook->button)
+    {
+      stop_scrolling (notebook);
+      return TRUE;
+    }
+  else
+    return FALSE;
+}
+
+static gint
+ggg_notebook_leave_notify (GtkWidget        *widget,
+			   GdkEventCrossing *event)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+  gint x, y;
+
+  if (!get_widget_coordinates (widget, (GdkEvent *)event, &x, &y))
+    return FALSE;
+
+  if (notebook->in_child)
+    {
+      notebook->in_child = 0;
+      ggg_notebook_redraw_arrows (notebook);
+    }
+
+  return TRUE;
+}
+
+static GggNotebookPointerPosition
+get_pointer_position (GggNotebook *notebook)
+{
+  GtkWidget *widget = (GtkWidget *) notebook;
+  GtkContainer *container = (GtkContainer *) notebook;
+  GggNotebookPrivate *priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  gboolean is_rtl;
+
+  if (!notebook->scrollable)
+    return POINTER_BETWEEN;
+
+  if (notebook->tab_pos == GTK_POS_TOP ||
+      notebook->tab_pos == GTK_POS_BOTTOM)
+    {
+      gint x;
+
+      is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
+      x = priv->mouse_x - widget->allocation.x;
+
+      if (x > widget->allocation.width - 2 * container->border_width - SCROLL_THRESHOLD)
+	return (is_rtl) ? POINTER_BEFORE : POINTER_AFTER;
+      else if (x < SCROLL_THRESHOLD + container->border_width)
+	return (is_rtl) ? POINTER_AFTER : POINTER_BEFORE;
+      else
+	return POINTER_BETWEEN;
+    }
+  else
+    {
+      gint y;
+
+      y = priv->mouse_y - widget->allocation.y;
+      if (y > widget->allocation.height - 2 * container->border_width - SCROLL_THRESHOLD)
+	return POINTER_AFTER;
+      else if (y < SCROLL_THRESHOLD + container->border_width)
+	return POINTER_BEFORE;
+      else
+	return POINTER_BETWEEN;
+    }
+}
+
+static gboolean
+scroll_notebook_timer (gpointer data)
+{
+  GggNotebook *notebook = (GggNotebook *) data;
+  GggNotebookPrivate *priv;
+  GggNotebookPointerPosition pointer_position;
+  GList *element, *first_tab;
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  pointer_position = get_pointer_position (notebook);
+
+  element = get_drop_position (notebook, notebook->cur_page->pack);
+  reorder_tab (notebook, element, notebook->focus_tab);
+  first_tab = ggg_notebook_search_page (notebook, notebook->first_tab,
+					(pointer_position == POINTER_BEFORE) ? STEP_PREV : STEP_NEXT,
+					TRUE);
+  if (first_tab)
+    {
+      notebook->first_tab = first_tab;
+      ggg_notebook_pages_allocate (notebook);
+
+      gdk_window_move_resize (priv->drag_window,
+			      priv->drag_window_x,
+			      priv->drag_window_y,
+			      notebook->cur_page->allocation.width,
+			      notebook->cur_page->allocation.height);
+      gdk_window_raise (priv->drag_window);
+    }
+
+  return TRUE;
+}
+
+static gboolean
+check_threshold (GggNotebook *notebook,
+		 gint         current_x,
+		 gint         current_y)
+{
+  GtkWidget *widget;
+  gint dnd_threshold;
+  GdkRectangle rectangle = { 0, }; /* shut up gcc */
+  GtkSettings *settings;
+  
+  widget = GTK_WIDGET (notebook);
+  settings = gtk_widget_get_settings (GTK_WIDGET (notebook));
+  g_object_get (G_OBJECT (settings), "gtk-dnd-drag-threshold", &dnd_threshold, NULL);
+
+  /* we want a large threshold */
+  dnd_threshold *= DND_THRESHOLD_MULTIPLIER;
+
+  gdk_window_get_position (notebook->event_window, &rectangle.x, &rectangle.y);
+  gdk_drawable_get_size (GDK_DRAWABLE (notebook->event_window), &rectangle.width, &rectangle.height);
+
+  rectangle.x -= dnd_threshold;
+  rectangle.width += 2 * dnd_threshold;
+  rectangle.y -= dnd_threshold;
+  rectangle.height += 2 * dnd_threshold;
+
+  return (current_x < rectangle.x ||
+	  current_x > rectangle.x + rectangle.width ||
+	  current_y < rectangle.y ||
+	  current_y > rectangle.y + rectangle.height);
+}
+
+static gint
+ggg_notebook_motion_notify (GtkWidget      *widget,
+			    GdkEventMotion *event)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+  GggNotebookPrivate *priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  GggNotebookPage *page;
+  GggNotebookArrow arrow;
+  GggNotebookPointerPosition pointer_position;
+  GtkSettings *settings;
+  guint timeout;
+
+  page = notebook->cur_page;
+
+  if (!page)
+    return FALSE;
+
+  if (!(event->state & GDK_BUTTON1_MASK) &&
+      priv->pressed_button != -1)
+    {
+      ggg_notebook_stop_reorder (notebook);
+      stop_scrolling (notebook);
+    }
+
+  if (event->time < priv->timestamp + MSECS_BETWEEN_UPDATES)
+    return FALSE;
+
+  priv->timestamp = event->time;
+  gdk_window_get_pointer (widget->window,
+			  &priv->mouse_x,
+			  &priv->mouse_y,
+			  NULL);
+
+  arrow = ggg_notebook_get_arrow (notebook, priv->mouse_x, priv->mouse_y);
+  if (arrow != notebook->in_child)
+    {
+      notebook->in_child = arrow;
+      ggg_notebook_redraw_arrows (notebook);
+    }
+
+  if (priv->pressed_button == -1)
+    return FALSE;
+
+  if (page->detachable &&
+      check_threshold (notebook, priv->mouse_x, priv->mouse_y))
+    {
+      priv->detached_tab = notebook->cur_page;
+      priv->during_detach = TRUE;
+
+      gtk_drag_begin (widget, priv->source_targets, GDK_ACTION_MOVE,
+		      priv->pressed_button, (GdkEvent*) event);
+      return TRUE;
+    }
+
+  if (page->reorderable &&
+      (priv->during_reorder ||
+       gtk_drag_check_threshold (widget, priv->drag_begin_x, priv->drag_begin_y, priv->mouse_x, priv->mouse_y)))
+    {
+      priv->during_reorder = TRUE;
+      pointer_position = get_pointer_position (notebook);
+
+      if (event->window == priv->drag_window &&
+	  pointer_position != POINTER_BETWEEN &&
+	  ggg_notebook_show_arrows (notebook))
+	{
+	  /* scroll tabs */
+	  if (!priv->dnd_timer)
+	    {
+	      priv->has_scrolled = TRUE;
+	      settings = gtk_widget_get_settings (GTK_WIDGET (notebook));
+	      g_object_get (settings, "gtk-timeout-repeat", &timeout, NULL);
+
+	      priv->dnd_timer = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
+					       scroll_notebook_timer, 
+					       (gpointer) notebook);
+	    }
+	}
+      else
+	{
+	  if (priv->dnd_timer)
+	    {
+	      g_source_remove (priv->dnd_timer);
+	      priv->dnd_timer = 0;
+	    }
+	}
+
+      if (event->window == priv->drag_window ||
+	  priv->operation != DRAG_OPERATION_REORDER)
+	{
+	  /* the drag operation is beginning, create the window */
+	  if (priv->operation != DRAG_OPERATION_REORDER)
+	    {
+	      priv->operation = DRAG_OPERATION_REORDER;
+	      show_drag_window (notebook, priv, page);
+	    }
+
+	  ggg_notebook_pages_allocate (notebook);
+	  gdk_window_move_resize (priv->drag_window,
+				  priv->drag_window_x,
+				  priv->drag_window_y,
+				  page->allocation.width,
+				  page->allocation.height);
+	}
+    }
+
+  return TRUE;
+}
+
+static void
+ggg_notebook_grab_notify (GtkWidget *widget,
+			  gboolean   was_grabbed)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+
+  if (!was_grabbed)
+    {
+      ggg_notebook_stop_reorder (notebook);
+      stop_scrolling (notebook);
+    }
+}
+
+static void
+ggg_notebook_state_changed (GtkWidget    *widget,
+			    GtkStateType  previous_state)
+{
+  if (!GTK_WIDGET_IS_SENSITIVE (widget)) 
+    stop_scrolling (GGG_NOTEBOOK (widget));
+}
+
+static gint
+ggg_notebook_focus_in (GtkWidget     *widget,
+		       GdkEventFocus *event)
+{
+  GGG_NOTEBOOK (widget)->child_has_focus = FALSE;
+
+  ggg_notebook_redraw_tabs (GGG_NOTEBOOK (widget));
+  
+  return FALSE;
+}
+
+static gint
+ggg_notebook_focus_out (GtkWidget     *widget,
+			GdkEventFocus *event)
+{
+  ggg_notebook_redraw_tabs (GGG_NOTEBOOK (widget));
+
+  return FALSE;
+}
+
+static void
+ggg_notebook_draw_focus (GtkWidget      *widget,
+			 GdkEventExpose *event)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (widget);
+
+  if (GTK_WIDGET_HAS_FOCUS (widget) && GTK_WIDGET_DRAWABLE (widget) &&
+      notebook->show_tabs && notebook->cur_page &&
+      notebook->cur_page->tab_label->window == event->window)
+    {
+      GggNotebookPage *page;
+
+      page = notebook->cur_page;
+
+      if (gtk_widget_intersect (page->tab_label, &event->area, NULL))
+        {
+          GdkRectangle area;
+          gint focus_width;
+
+          gtk_widget_style_get (widget, "focus-line-width", &focus_width, NULL);
+
+          area.x = page->tab_label->allocation.x - focus_width;
+          area.y = page->tab_label->allocation.y - focus_width;
+          area.width = page->tab_label->allocation.width + 2 * focus_width;
+          area.height = page->tab_label->allocation.height + 2 * focus_width;
+
+	  gtk_paint_focus (widget->style, event->window, 
+                           GTK_WIDGET_STATE (widget), NULL, widget, "tab",
+			   area.x, area.y, area.width, area.height);
+        }
+    }
+}
+
+static void
+ggg_notebook_style_set  (GtkWidget *widget,
+			 GtkStyle  *previous)
+{
+  GggNotebook *notebook;
+
+  gboolean has_before_previous;
+  gboolean has_before_next;
+  gboolean has_after_previous;
+  gboolean has_after_next;
+
+  notebook = GGG_NOTEBOOK (widget);
+  
+  gtk_widget_style_get (widget,
+                        "has-backward-stepper", &has_before_previous,
+                        "has-secondary-forward-stepper", &has_before_next,
+                        "has-secondary-backward-stepper", &has_after_previous,
+                        "has-forward-stepper", &has_after_next,
+                        NULL);
+  
+  notebook->has_before_previous = has_before_previous;
+  notebook->has_before_next = has_before_next;
+  notebook->has_after_previous = has_after_previous;
+  notebook->has_after_next = has_after_next;
+  
+  (* GTK_WIDGET_CLASS (ggg_notebook_parent_class)->style_set) (widget, previous);
+}
+
+static gboolean
+on_drag_icon_expose (GtkWidget      *widget,
+		     GdkEventExpose *event,
+		     gpointer        data)
+{
+  GtkWidget *notebook, *child = GTK_WIDGET (data);
+  GtkRequisition requisition;
+  gint gap_pos;
+
+  notebook = GTK_WIDGET (data);
+  child = GTK_BIN (widget)->child;
+  gtk_widget_size_request (widget, &requisition);
+  gap_pos = get_tab_gap_pos (GGG_NOTEBOOK (notebook));
+
+  gtk_paint_extension (notebook->style, widget->window,
+		       GTK_STATE_NORMAL, GTK_SHADOW_OUT,
+		       NULL, widget, (char*)"tab",
+		       0, 0,
+		       requisition.width, requisition.height,
+		       gap_pos);
+  if (child)
+    gtk_container_propagate_expose (GTK_CONTAINER (widget), child, event);
+
+  return TRUE;
+}
+
+static void
+ggg_notebook_drag_begin (GtkWidget        *widget,
+			 GdkDragContext   *context)
+{
+  GggNotebookPrivate *priv = GGG_NOTEBOOK_GET_PRIVATE (widget);
+  GggNotebook *notebook = (GggNotebook*) widget;
+  GtkWidget *tab_label;
+
+  if (priv->dnd_timer)
+    {
+      g_source_remove (priv->dnd_timer);
+      priv->dnd_timer = 0;
+    }
+
+  priv->operation = DRAG_OPERATION_DETACH;
+  ggg_notebook_pages_allocate (notebook);
+
+  tab_label = priv->detached_tab->tab_label;
+
+  hide_drag_window (notebook, priv, notebook->cur_page);
+  g_object_ref (tab_label);
+  gtk_widget_unparent (tab_label);
+
+  priv->dnd_window = gtk_window_new (GTK_WINDOW_POPUP);
+  gtk_container_add (GTK_CONTAINER (priv->dnd_window), tab_label);
+  gtk_widget_set_size_request (priv->dnd_window,
+			       priv->detached_tab->allocation.width,
+			       priv->detached_tab->allocation.height);
+  g_object_unref (tab_label);
+
+  g_signal_connect (G_OBJECT (priv->dnd_window), "expose-event",
+		    G_CALLBACK (on_drag_icon_expose), notebook);
+
+  gtk_drag_set_icon_widget (context, priv->dnd_window, -2, -2);
+}
+
+static void
+ggg_notebook_drag_end (GtkWidget      *widget,
+		       GdkDragContext *context)
+{
+  GggNotebookPrivate *priv = GGG_NOTEBOOK_GET_PRIVATE (widget);
+
+  ggg_notebook_stop_reorder (GGG_NOTEBOOK (widget));
+
+  if (priv->detached_tab)
+    ggg_notebook_switch_page (GGG_NOTEBOOK (widget), priv->detached_tab);
+
+  GTK_BIN (priv->dnd_window)->child = NULL;
+  gtk_widget_destroy (priv->dnd_window);
+  priv->dnd_window = NULL;
+
+  priv->operation = DRAG_OPERATION_NONE;
+}
+
+static GggNotebook *
+ggg_notebook_create_window (GggNotebook *notebook,
+                            GtkWidget   *page,
+                            gint         x,
+                            gint         y)
+{
+  if (window_creation_hook)
+    return (* window_creation_hook) (notebook, page, x, y, window_creation_hook_data);
+
+  return NULL;
+}
+
+static gboolean
+ggg_notebook_drag_failed (GtkWidget      *widget,
+			  GdkDragContext *context,
+			  GtkDragResult   result,
+			  gpointer        data)
+{
+  if (result == GTK_DRAG_RESULT_NO_TARGET)
+    {
+      GggNotebookPrivate *priv;
+      GggNotebook *notebook, *dest_notebook = NULL;
+      GdkDisplay *display;
+      gint x, y;
+
+      notebook = GGG_NOTEBOOK (widget);
+      priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+      display = gtk_widget_get_display (widget);
+      gdk_display_get_pointer (display, NULL, &x, &y, NULL);
+
+      g_signal_emit (notebook, notebook_signals[CREATE_WINDOW], 0,
+                     priv->detached_tab->child, x, y, &dest_notebook);
+
+      if (dest_notebook)
+	do_detach_tab (notebook, dest_notebook, priv->detached_tab->child, 0, 0);
+
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static gboolean
+ggg_notebook_switch_tab_timeout (gpointer data)
+{
+  GggNotebook *notebook;
+  GggNotebookPrivate *priv;
+  GList *tab;
+  gint x, y;
+
+  notebook = GGG_NOTEBOOK (data);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+  priv->switch_tab_timer = 0;
+  x = priv->mouse_x;
+  y = priv->mouse_y;
+
+  if ((tab = get_tab_at_pos (notebook, x, y)) != NULL)
+    {
+      /* FIXME: hack, we don't want the
+       * focus to move fom the source widget
+       */
+      notebook->child_has_focus = FALSE;
+      ggg_notebook_switch_focus_tab (notebook, tab);
+    }
+
+  return FALSE;
+}
+
+static gboolean
+ggg_notebook_drag_motion (GtkWidget      *widget,
+			  GdkDragContext *context,
+			  gint            x,
+			  gint            y,
+			  guint           time)
+{
+  GggNotebook *notebook;
+  GggNotebookPrivate *priv;
+  GdkRectangle position;
+  GtkSettings *settings;
+  GggNotebookArrow arrow;
+  guint timeout;
+  GdkAtom target, tab_target;
+
+  notebook = GGG_NOTEBOOK (widget);
+  arrow = ggg_notebook_get_arrow (notebook,
+				  x + widget->allocation.x,
+				  y + widget->allocation.y);
+  if (arrow)
+    {
+      notebook->click_child = arrow;
+      ggg_notebook_set_scroll_timer (notebook);
+      gdk_drag_status (context, 0, time);
+      return TRUE;
+    }
+
+  stop_scrolling (notebook);
+  target = gtk_drag_dest_find_target (widget, context, NULL);
+  tab_target = gdk_atom_intern_static_string ("GGG_NOTEBOOK_TAB");
+
+  if (target == tab_target)
+    {
+      gpointer widget_group, source_widget_group;
+      GtkWidget *source_widget;
+
+      source_widget = gtk_drag_get_source_widget (context);
+      g_assert (source_widget);
+
+      widget_group = ggg_notebook_get_group (notebook);
+      source_widget_group = ggg_notebook_get_group (GGG_NOTEBOOK (source_widget));
+
+      if (widget_group && source_widget_group &&
+	  widget_group == source_widget_group &&
+	  !(widget == GGG_NOTEBOOK (source_widget)->cur_page->child || 
+	    gtk_widget_is_ancestor (widget, GGG_NOTEBOOK (source_widget)->cur_page->child)))
+	{
+	  gdk_drag_status (context, GDK_ACTION_MOVE, time);
+	  return TRUE;
+	}
+      else
+	{
+	  /* it's a tab, but doesn't share
+	   * ID with this notebook */
+	  gdk_drag_status (context, 0, time);
+	}
+    }
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (widget);
+  x += widget->allocation.x;
+  y += widget->allocation.y;
+
+  if (ggg_notebook_get_event_window_position (notebook, &position) &&
+      x >= position.x && x <= position.x + position.width &&
+      y >= position.y && y <= position.y + position.height)
+    {
+      priv->mouse_x = x;
+      priv->mouse_y = y;
+
+      if (!priv->switch_tab_timer)
+	{
+          settings = gtk_widget_get_settings (widget);
+
+          g_object_get (settings, "gtk-timeout-expand", &timeout, NULL);
+	  priv->switch_tab_timer = gdk_threads_add_timeout (timeout,
+						  ggg_notebook_switch_tab_timeout,
+						  widget);
+	}
+    }
+  else
+    {
+      if (priv->switch_tab_timer)
+	{
+	  g_source_remove (priv->switch_tab_timer);
+	  priv->switch_tab_timer = 0;
+	}
+    }
+
+  return (target == tab_target) ? TRUE : FALSE;
+}
+
+static void
+ggg_notebook_drag_leave (GtkWidget      *widget,
+			 GdkDragContext *context,
+			 guint           time)
+{
+  GggNotebookPrivate *priv;
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (widget);
+
+  if (priv->switch_tab_timer)
+    {
+      g_source_remove (priv->switch_tab_timer);
+      priv->switch_tab_timer = 0;
+    }
+
+  stop_scrolling (GGG_NOTEBOOK (widget));
+}
+
+static gboolean
+ggg_notebook_drag_drop (GtkWidget        *widget,
+			GdkDragContext   *context,
+			gint              x,
+			gint              y,
+			guint             time)
+{
+  GdkAtom target, tab_target;
+
+  target = gtk_drag_dest_find_target (widget, context, NULL);
+  tab_target = gdk_atom_intern_static_string ("GGG_NOTEBOOK_TAB");
+
+  if (target == tab_target)
+    {
+      gtk_drag_get_data (widget, context, target, time);
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+do_detach_tab (GggNotebook     *from,
+	       GggNotebook     *to,
+	       GtkWidget       *child,
+	       gint             x,
+	       gint             y)
+{
+  GggNotebookPrivate *priv;
+  GtkWidget *tab_label, *menu_label;
+  gboolean tab_expand, tab_fill, reorderable, detachable;
+  GList *element;
+  guint tab_pack;
+  gint page_num;
+
+  menu_label = ggg_notebook_get_menu_label (from, child);
+
+  if (menu_label)
+    g_object_ref (menu_label);
+
+  tab_label = ggg_notebook_get_tab_label (from, child);
+  
+  if (tab_label)
+    g_object_ref (tab_label);
+
+  g_object_ref (child);
+
+  gtk_container_child_get (GTK_CONTAINER (from),
+			   child,
+			   "tab-expand", &tab_expand,
+			   "tab-fill", &tab_fill,
+			   "tab-pack", &tab_pack,
+			   "reorderable", &reorderable,
+			   "detachable", &detachable,
+			   NULL);
+
+  gtk_container_remove (GTK_CONTAINER (from), child);
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (to);
+  priv->mouse_x = x + GTK_WIDGET (to)->allocation.x;
+  priv->mouse_y = y + GTK_WIDGET (to)->allocation.y;
+
+  element = get_drop_position (to, tab_pack);
+  page_num = g_list_position (to->children, element);
+  ggg_notebook_insert_page_menu (to, child, tab_label, menu_label, page_num);
+
+  gtk_container_child_set (GTK_CONTAINER (to), child,
+			   "tab-pack", tab_pack,
+			   "tab-expand", tab_expand,
+			   "tab-fill", tab_fill,
+			   "reorderable", reorderable,
+			   "detachable", detachable,
+			   NULL);
+  if (child)
+    g_object_unref (child);
+
+  if (tab_label)
+    g_object_unref (tab_label);
+
+  if (menu_label)
+    g_object_unref (menu_label);
+
+  ggg_notebook_set_current_page (to, page_num);
+}
+
+static void
+ggg_notebook_drag_data_get (GtkWidget        *widget,
+			    GdkDragContext   *context,
+			    GtkSelectionData *data,
+			    guint             info,
+			    guint             time)
+{
+  GggNotebookPrivate *priv;
+
+  if (data->target == gdk_atom_intern_static_string ("GGG_NOTEBOOK_TAB"))
+    {
+      priv = GGG_NOTEBOOK_GET_PRIVATE (widget);
+
+      gtk_selection_data_set (data,
+			      data->target,
+			      8,
+			      (void*) &priv->detached_tab->child,
+			      sizeof (gpointer));
+    }
+}
+
+static void
+ggg_notebook_drag_data_received (GtkWidget        *widget,
+				 GdkDragContext   *context,
+				 gint              x,
+				 gint              y,
+				 GtkSelectionData *data,
+				 guint             info,
+				 guint             time)
+{
+  GggNotebook *notebook;
+  GtkWidget *source_widget;
+  GtkWidget **child;
+
+  notebook = GGG_NOTEBOOK (widget);
+  source_widget = gtk_drag_get_source_widget (context);
+
+  if (source_widget &&
+      data->target == gdk_atom_intern_static_string ("GGG_NOTEBOOK_TAB"))
+    {
+      child = (void*) data->data;
+
+      do_detach_tab (GGG_NOTEBOOK (source_widget), notebook, *child, x, y);
+      gtk_drag_finish (context, TRUE, FALSE, time);
+    }
+  else
+    gtk_drag_finish (context, FALSE, FALSE, time);
+}
+
+/* Private GtkContainer Methods :
+ * 
+ * ggg_notebook_set_child_arg
+ * ggg_notebook_get_child_arg
+ * ggg_notebook_add
+ * ggg_notebook_remove
+ * ggg_notebook_focus
+ * ggg_notebook_set_focus_child
+ * ggg_notebook_child_type
+ * ggg_notebook_forall
+ */
+static void
+ggg_notebook_set_child_property (GtkContainer    *container,
+				 GtkWidget       *child,
+				 guint            property_id,
+				 const GValue    *value,
+				 GParamSpec      *pspec)
+{
+  gboolean expand;
+  gboolean fill;
+  GtkPackType pack_type;
+
+  /* not finding child's page is valid for menus or labels */
+  if (!ggg_notebook_find_child (GGG_NOTEBOOK (container), child, NULL))
+    return;
+
+  switch (property_id)
+    {
+    case CHILD_PROP_TAB_LABEL:
+      /* a NULL pointer indicates a default_tab setting, otherwise
+       * we need to set the associated label
+       */
+      ggg_notebook_set_tab_label_text (GGG_NOTEBOOK (container), child,
+				       g_value_get_string (value));
+      break;
+    case CHILD_PROP_MENU_LABEL:
+      ggg_notebook_set_menu_label_text (GGG_NOTEBOOK (container), child,
+					g_value_get_string (value));
+      break;
+    case CHILD_PROP_POSITION:
+      ggg_notebook_reorder_child (GGG_NOTEBOOK (container), child,
+				  g_value_get_int (value));
+      break;
+    case CHILD_PROP_TAB_EXPAND:
+      ggg_notebook_query_tab_label_packing (GGG_NOTEBOOK (container), child,
+					    &expand, &fill, &pack_type);
+      ggg_notebook_set_tab_label_packing (GGG_NOTEBOOK (container), child,
+					  g_value_get_boolean (value),
+					  fill, pack_type);
+      break;
+    case CHILD_PROP_TAB_FILL:
+      ggg_notebook_query_tab_label_packing (GGG_NOTEBOOK (container), child,
+					    &expand, &fill, &pack_type);
+      ggg_notebook_set_tab_label_packing (GGG_NOTEBOOK (container), child,
+					  expand,
+					  g_value_get_boolean (value),
+					  pack_type);
+      break;
+    case CHILD_PROP_TAB_PACK:
+      ggg_notebook_query_tab_label_packing (GGG_NOTEBOOK (container), child,
+					    &expand, &fill, &pack_type);
+      ggg_notebook_set_tab_label_packing (GGG_NOTEBOOK (container), child,
+					  expand, fill,
+					  g_value_get_enum (value));
+      break;
+    case CHILD_PROP_REORDERABLE:
+      ggg_notebook_set_tab_reorderable (GGG_NOTEBOOK (container), child,
+					g_value_get_boolean (value));
+      break;
+    case CHILD_PROP_DETACHABLE:
+      ggg_notebook_set_tab_detachable (GGG_NOTEBOOK (container), child,
+				       g_value_get_boolean (value));
+      break;
+    default:
+      GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
+      break;
+    }
+}
+
+static void
+ggg_notebook_get_child_property (GtkContainer    *container,
+				 GtkWidget       *child,
+				 guint            property_id,
+				 GValue          *value,
+				 GParamSpec      *pspec)
+{
+  GList *list;
+  GggNotebook *notebook;
+  GtkWidget *label;
+  gboolean expand;
+  gboolean fill;
+  GtkPackType pack_type;
+
+  notebook = GGG_NOTEBOOK (container);
+
+  /* not finding child's page is valid for menus or labels */
+  list = ggg_notebook_find_child (notebook, child, NULL);
+  if (!list)
+    {
+      /* nothing to set on labels or menus */
+      g_param_value_set_default (pspec, value);
+      return;
+    }
+
+  switch (property_id)
+    {
+    case CHILD_PROP_TAB_LABEL:
+      label = ggg_notebook_get_tab_label (notebook, child);
+
+      if (label && GTK_IS_LABEL (label))
+	g_value_set_string (value, GTK_LABEL (label)->label);
+      else
+	g_value_set_string (value, NULL);
+      break;
+    case CHILD_PROP_MENU_LABEL:
+      label = ggg_notebook_get_menu_label (notebook, child);
+
+      if (label && GTK_IS_LABEL (label))
+	g_value_set_string (value, GTK_LABEL (label)->label);
+      else
+	g_value_set_string (value, NULL);
+      break;
+    case CHILD_PROP_POSITION:
+      g_value_set_int (value, g_list_position (notebook->children, list));
+      break;
+    case CHILD_PROP_TAB_EXPAND:
+	ggg_notebook_query_tab_label_packing (GGG_NOTEBOOK (container), child,
+					      &expand, NULL, NULL);
+	g_value_set_boolean (value, expand);
+      break;
+    case CHILD_PROP_TAB_FILL:
+	ggg_notebook_query_tab_label_packing (GGG_NOTEBOOK (container), child,
+					      NULL, &fill, NULL);
+	g_value_set_boolean (value, fill);
+      break;
+    case CHILD_PROP_TAB_PACK:
+	ggg_notebook_query_tab_label_packing (GGG_NOTEBOOK (container), child,
+					      NULL, NULL, &pack_type);
+	g_value_set_enum (value, pack_type);
+      break;
+    case CHILD_PROP_REORDERABLE:
+      g_value_set_boolean (value,
+			   ggg_notebook_get_tab_reorderable (GGG_NOTEBOOK (container), child));
+      break;
+    case CHILD_PROP_DETACHABLE:
+      g_value_set_boolean (value,
+			   ggg_notebook_get_tab_detachable (GGG_NOTEBOOK (container), child));
+      break;
+    default:
+      GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
+      break;
+    }
+}
+
+static void
+ggg_notebook_add (GtkContainer *container,
+		  GtkWidget    *widget)
+{
+  ggg_notebook_insert_page_menu (GGG_NOTEBOOK (container), widget, 
+				 NULL, NULL, -1);
+}
+
+static void
+ggg_notebook_remove (GtkContainer *container,
+		     GtkWidget    *widget)
+{
+  GggNotebook *notebook;
+  GggNotebookPage *page;
+  GList *children;
+  gint page_num = 0;
+
+  notebook = GGG_NOTEBOOK (container);
+
+  children = notebook->children;
+  while (children)
+    {
+      page = children->data;
+
+      if (page->child == widget)
+	break;
+
+      page_num++;
+      children = children->next;
+    }
+ 
+  if (children == NULL)
+    return;
+  
+  g_object_ref (widget);
+
+  ggg_notebook_real_remove (notebook, children);
+
+  g_signal_emit (notebook,
+		 notebook_signals[PAGE_REMOVED],
+		 0,
+		 widget,
+		 page_num);
+  
+  g_object_unref (widget);
+}
+
+static gboolean
+focus_tabs_in (GggNotebook *notebook)
+{
+  if (notebook->show_tabs && notebook->cur_page)
+    {
+      gtk_widget_grab_focus (GTK_WIDGET (notebook));
+
+      ggg_notebook_switch_focus_tab (notebook,
+				     g_list_find (notebook->children,
+						  notebook->cur_page));
+
+      return TRUE;
+    }
+  else
+    return FALSE;
+}
+
+static gboolean
+focus_tabs_move (GggNotebook     *notebook,
+		 GtkDirectionType direction,
+		 gint             search_direction)
+{
+  GList *new_page;
+
+  new_page = ggg_notebook_search_page (notebook, notebook->focus_tab,
+				       search_direction, TRUE);
+  if (!new_page)
+    {
+      gboolean wrap_around;
+
+      g_object_get (gtk_widget_get_settings (GTK_WIDGET (notebook)),
+                    "gtk-keynav-wrap-around", &wrap_around,
+                    NULL);
+
+      if (wrap_around)
+        new_page = ggg_notebook_search_page (notebook, NULL,
+                                             search_direction, TRUE);
+    }
+
+  if (new_page)
+    ggg_notebook_switch_focus_tab (notebook, new_page);
+  else
+    gtk_widget_error_bell (GTK_WIDGET (notebook));
+
+  return TRUE;
+}
+
+static gboolean
+focus_child_in (GggNotebook     *notebook,
+		GtkDirectionType direction)
+{
+  if (notebook->cur_page)
+    return gtk_widget_child_focus (notebook->cur_page->child, direction);
+  else
+    return FALSE;
+}
+
+/* Focus in the notebook can either be on the pages, or on
+ * the tabs.
+ */
+static gint
+ggg_notebook_focus (GtkWidget        *widget,
+		    GtkDirectionType  direction)
+{
+  GtkWidget *old_focus_child;
+  GggNotebook *notebook;
+  GtkDirectionType effective_direction;
+
+  gboolean widget_is_focus;
+  GtkContainer *container;
+
+  container = GTK_CONTAINER (widget);
+  notebook = GGG_NOTEBOOK (container);
+
+  if (notebook->focus_out)
+    {
+      notebook->focus_out = FALSE; /* Clear this to catch the wrap-around case */
+      return FALSE;
+    }
+
+  widget_is_focus = gtk_widget_is_focus (widget);
+  old_focus_child = container->focus_child; 
+
+  effective_direction = get_effective_direction (notebook, direction);
+
+  if (old_focus_child)		/* Focus on page child */
+    {
+      if (gtk_widget_child_focus (old_focus_child, direction))
+        return TRUE;
+      
+      switch (effective_direction)
+	{
+	case GTK_DIR_TAB_BACKWARD:
+	case GTK_DIR_UP:
+	  /* Focus onto the tabs */
+	  return focus_tabs_in (notebook);
+	case GTK_DIR_DOWN:
+	case GTK_DIR_TAB_FORWARD:
+	case GTK_DIR_LEFT:
+	case GTK_DIR_RIGHT:
+	  return FALSE;
+	}
+    }
+  else if (widget_is_focus)	/* Focus was on tabs */
+    {
+      switch (effective_direction)
+	{
+	case GTK_DIR_TAB_BACKWARD:
+	case GTK_DIR_UP:
+	  return FALSE;
+	case GTK_DIR_TAB_FORWARD:
+	case GTK_DIR_DOWN:
+	  /* We use TAB_FORWARD rather than direction so that we focus a more
+	   * predictable widget for the user; users may be using arrow focusing
+	   * in this situation even if they don't usually use arrow focusing.
+	   */
+	  return focus_child_in (notebook, GTK_DIR_TAB_FORWARD);
+	case GTK_DIR_LEFT:
+	  return focus_tabs_move (notebook, direction, STEP_PREV);
+	case GTK_DIR_RIGHT:
+	  return focus_tabs_move (notebook, direction, STEP_NEXT);
+	}
+    }
+  else /* Focus was not on widget */
+    {
+      switch (effective_direction)
+	{
+	case GTK_DIR_TAB_FORWARD:
+	case GTK_DIR_DOWN:
+	  if (focus_tabs_in (notebook))
+	    return TRUE;
+	  if (focus_child_in (notebook, direction))
+	    return TRUE;
+	  return FALSE;
+	case GTK_DIR_TAB_BACKWARD:
+	case GTK_DIR_UP:
+	  if (focus_child_in (notebook, direction))
+	    return TRUE;
+	  if (focus_tabs_in (notebook))
+	    return TRUE;
+	  return FALSE;
+	case GTK_DIR_LEFT:
+	case GTK_DIR_RIGHT:
+	  return focus_child_in (notebook, direction);
+	}
+    }
+
+  g_assert_not_reached ();
+  return FALSE;
+}  
+
+static void
+ggg_notebook_set_focus_child (GtkContainer *container,
+			      GtkWidget    *child)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (container);
+  GtkWidget *page_child;
+  GtkWidget *toplevel;
+
+  /* If the old focus widget was within a page of the notebook,
+   * (child may either be NULL or not in this case), record it
+   * for future use if we switch to the page with a mnemonic.
+   */
+
+  toplevel = gtk_widget_get_toplevel (GTK_WIDGET (container));
+  if (toplevel && GTK_WIDGET_TOPLEVEL (toplevel))
+    {
+      page_child = GTK_WINDOW (toplevel)->focus_widget; 
+      while (page_child)
+	{
+	  if (page_child->parent == GTK_WIDGET (container))
+	    {
+	      GList *list = ggg_notebook_find_child (notebook, page_child, NULL);
+	      if (list != NULL) 
+		{
+		  GggNotebookPage *page = list->data;
+	      
+		  if (page->last_focus_child)
+		    g_object_remove_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child);
+		  
+		  page->last_focus_child = GTK_WINDOW (toplevel)->focus_widget;
+		  g_object_add_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child);
+	      
+		  break;
+		}
+	    }
+
+	  page_child = page_child->parent;
+	}
+    }
+  
+  if (child)
+    {
+      g_return_if_fail (GTK_IS_WIDGET (child));
+
+      notebook->child_has_focus = TRUE;
+      if (!notebook->focus_tab)
+	{
+	  GList *children;
+	  GggNotebookPage *page;
+
+	  children = notebook->children;
+	  while (children)
+	    {
+	      page = children->data;
+	      if (page->child == child || page->tab_label == child)
+		ggg_notebook_switch_focus_tab (notebook, children);
+	      children = children->next;
+	    }
+	}
+    }
+
+  GTK_CONTAINER_CLASS (ggg_notebook_parent_class)->set_focus_child (container, child);
+}
+
+static void
+ggg_notebook_forall (GtkContainer *container,
+		     gboolean      include_internals,
+		     GtkCallback   callback,
+		     gpointer      callback_data)
+{
+  GggNotebook *notebook;
+  GList *children;
+
+  notebook = GGG_NOTEBOOK (container);
+
+  children = notebook->children;
+  while (children)
+    {
+      GggNotebookPage *page;
+      
+      page = children->data;
+      children = children->next;
+      (* callback) (page->child, callback_data);
+
+      if (include_internals)
+	{
+	  if (page->tab_label)
+	    (* callback) (page->tab_label, callback_data);
+	}
+    }
+}
+
+static GType
+ggg_notebook_child_type (GtkContainer     *container)
+{
+  return GTK_TYPE_WIDGET;
+}
+
+/* Private GggNotebook Methods:
+ *
+ * ggg_notebook_real_insert_page
+ */
+static void
+page_visible_cb (GtkWidget  *page,
+                 GParamSpec *arg,
+                 gpointer    data)
+{
+  GggNotebook *notebook = (GggNotebook *) data;
+  GList *list;
+  GList *next = NULL;
+
+  if (notebook->cur_page &&
+      notebook->cur_page->child == page &&
+      !GTK_WIDGET_VISIBLE (page))
+    {
+      list = g_list_find (notebook->children, notebook->cur_page);
+      if (list)
+        {
+          next = ggg_notebook_search_page (notebook, list, STEP_NEXT, TRUE);
+          if (!next)
+            next = ggg_notebook_search_page (notebook, list, STEP_PREV, TRUE);
+        }
+
+      if (next)
+        ggg_notebook_switch_page (notebook, GGG_NOTEBOOK_PAGE (next));
+    }
+}
+
+static gint
+ggg_notebook_real_insert_page (GggNotebook *notebook,
+			       GtkWidget   *child,
+			       GtkWidget   *tab_label,
+			       GtkWidget   *menu_label,
+			       gint         position)
+{
+  GggNotebookPage *page;
+  gint nchildren;
+
+  gtk_widget_freeze_child_notify (child);
+
+  page = g_new0 (GggNotebookPage, 1);
+  page->child = child;
+
+  nchildren = g_list_length (notebook->children);
+  if ((position < 0) || (position > nchildren))
+    position = nchildren;
+
+  notebook->children = g_list_insert (notebook->children, page, position);
+
+  if (!tab_label)
+    {
+      page->default_tab = TRUE;
+      if (notebook->show_tabs)
+	tab_label = gtk_label_new (NULL);
+    }
+  page->tab_label = tab_label;
+  page->menu_label = menu_label;
+  page->expand = FALSE;
+  page->fill = TRUE;
+  page->pack = GTK_PACK_START; 
+
+  if (!menu_label)
+    page->default_menu = TRUE;
+  else  
+    g_object_ref_sink (page->menu_label);
+
+  if (notebook->menu)
+    ggg_notebook_menu_item_create (notebook,
+				   g_list_find (notebook->children, page));
+
+  gtk_widget_set_parent (child, GTK_WIDGET (notebook));
+  if (tab_label)
+    gtk_widget_set_parent (tab_label, GTK_WIDGET (notebook));
+
+  ggg_notebook_update_labels (notebook);
+
+  if (!notebook->first_tab)
+    notebook->first_tab = notebook->children;
+
+  /* child visible will be turned on by switch_page below */
+  if (notebook->cur_page != page)
+    gtk_widget_set_child_visible (child, FALSE);
+
+  if (tab_label)
+    {
+      if (notebook->show_tabs && GTK_WIDGET_VISIBLE (child))
+	gtk_widget_show (tab_label);
+      else
+	gtk_widget_hide (tab_label);
+
+    page->mnemonic_activate_signal =
+      g_signal_connect (tab_label,
+			"mnemonic_activate",
+			G_CALLBACK (ggg_notebook_mnemonic_activate_switch_page),
+			notebook);
+    }
+
+  page->notify_visible_handler = g_signal_connect (child, "notify::visible",
+						   G_CALLBACK (page_visible_cb), notebook);
+
+  g_signal_emit (notebook,
+		 notebook_signals[PAGE_ADDED],
+		 0,
+		 child,
+		 position);
+
+  if (!notebook->cur_page)
+    {
+      ggg_notebook_switch_page (notebook, page);
+      /* focus_tab is set in the switch_page method */
+      ggg_notebook_switch_focus_tab (notebook, notebook->focus_tab);
+    }
+
+  ggg_notebook_update_tab_states (notebook);
+
+  gtk_widget_child_notify (child, "tab-expand");
+  gtk_widget_child_notify (child, "tab-fill");
+  gtk_widget_child_notify (child, "tab-pack");
+  gtk_widget_child_notify (child, "tab-label");
+  gtk_widget_child_notify (child, "menu-label");
+  gtk_widget_child_notify (child, "position");
+  gtk_widget_thaw_child_notify (child);
+
+  /* The page-added handler might have reordered the pages, re-get the position */
+  return ggg_notebook_page_num (notebook, child);
+}
+
+/* Private GggNotebook Functions:
+ *
+ * ggg_notebook_redraw_tabs
+ * ggg_notebook_real_remove
+ * ggg_notebook_update_labels
+ * ggg_notebook_timer
+ * ggg_notebook_set_scroll_timer
+ * ggg_notebook_page_compare
+ * ggg_notebook_real_page_position
+ * ggg_notebook_search_page
+ */
+static void
+ggg_notebook_redraw_tabs (GggNotebook *notebook)
+{
+  GtkWidget *widget;
+  GggNotebookPage *page;
+  GdkRectangle redraw_rect;
+  gint border;
+  gint tab_pos = get_effective_tab_pos (notebook);
+
+  widget = GTK_WIDGET (notebook);
+  border = GTK_CONTAINER (notebook)->border_width;
+
+  if (!GTK_WIDGET_MAPPED (notebook) || !notebook->first_tab)
+    return;
+
+  page = notebook->first_tab->data;
+
+  redraw_rect.x = border;
+  redraw_rect.y = border;
+
+  switch (tab_pos)
+    {
+    case GTK_POS_BOTTOM:
+      redraw_rect.y = widget->allocation.height - border -
+	page->allocation.height - widget->style->ythickness;
+
+      if (page != notebook->cur_page)
+	redraw_rect.y -= widget->style->ythickness;
+      /* fall through */
+    case GTK_POS_TOP:
+      redraw_rect.width = widget->allocation.width - 2 * border;
+      redraw_rect.height = page->allocation.height + widget->style->ythickness;
+
+      if (page != notebook->cur_page)
+	redraw_rect.height += widget->style->ythickness;
+      break;
+    case GTK_POS_RIGHT:
+      redraw_rect.x = widget->allocation.width - border -
+	page->allocation.width - widget->style->xthickness;
+
+      if (page != notebook->cur_page)
+	redraw_rect.x -= widget->style->xthickness;
+      /* fall through */
+    case GTK_POS_LEFT:
+      redraw_rect.width = page->allocation.width + widget->style->xthickness;
+      redraw_rect.height = widget->allocation.height - 2 * border;
+
+      if (page != notebook->cur_page)
+	redraw_rect.width += widget->style->xthickness;
+      break;
+    }
+
+  redraw_rect.x += widget->allocation.x;
+  redraw_rect.y += widget->allocation.y;
+
+  gdk_window_invalidate_rect (widget->window, &redraw_rect, TRUE);
+}
+
+static void
+ggg_notebook_redraw_arrows (GggNotebook *notebook)
+{
+  if (GTK_WIDGET_MAPPED (notebook) && ggg_notebook_show_arrows (notebook))
+    {
+      GdkRectangle rect;
+      gint i;
+      GggNotebookArrow arrow[4];
+
+      arrow[0] = notebook->has_before_previous ? ARROW_LEFT_BEFORE : ARROW_NONE;
+      arrow[1] = notebook->has_before_next ? ARROW_RIGHT_BEFORE : ARROW_NONE;
+      arrow[2] = notebook->has_after_previous ? ARROW_LEFT_AFTER : ARROW_NONE;
+      arrow[3] = notebook->has_after_next ? ARROW_RIGHT_AFTER : ARROW_NONE;
+
+      for (i = 0; i < 4; i++) 
+	{
+	  if (arrow[i] == ARROW_NONE)
+	    continue;
+
+	  ggg_notebook_get_arrow_rect (notebook, &rect, arrow[i]);
+	  gdk_window_invalidate_rect (GTK_WIDGET (notebook)->window, 
+				      &rect, FALSE);
+	}
+    }
+}
+
+static gboolean
+ggg_notebook_timer (GggNotebook *notebook)
+{
+  gboolean retval = FALSE;
+
+  if (notebook->timer)
+    {
+      ggg_notebook_do_arrow (notebook, notebook->click_child);
+
+      if (notebook->need_timer)
+	{
+          GtkSettings *settings;
+          guint        timeout;
+
+          settings = gtk_widget_get_settings (GTK_WIDGET (notebook));
+          g_object_get (settings, "gtk-timeout-repeat", &timeout, NULL);
+
+	  notebook->need_timer = FALSE;
+	  notebook->timer = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
+					   (GSourceFunc) ggg_notebook_timer,
+					   (gpointer) notebook);
+	}
+      else
+	retval = TRUE;
+    }
+
+  return retval;
+}
+
+static void
+ggg_notebook_set_scroll_timer (GggNotebook *notebook)
+{
+  GtkWidget *widget = GTK_WIDGET (notebook);
+
+  if (!notebook->timer)
+    {
+      GtkSettings *settings = gtk_widget_get_settings (widget);
+      guint timeout;
+
+      g_object_get (settings, "gtk-timeout-initial", &timeout, NULL);
+
+      notebook->timer = gdk_threads_add_timeout (timeout,
+				       (GSourceFunc) ggg_notebook_timer,
+				       (gpointer) notebook);
+      notebook->need_timer = TRUE;
+    }
+}
+
+static gint
+ggg_notebook_page_compare (gconstpointer a,
+			   gconstpointer b)
+{
+  return (((GggNotebookPage *) a)->child != b);
+}
+
+static GList*
+ggg_notebook_find_child (GggNotebook *notebook,
+			 GtkWidget   *child,
+			 const gchar *function)
+{
+  GList *list = g_list_find_custom (notebook->children, child,
+				    ggg_notebook_page_compare);
+
+#ifndef G_DISABLE_CHECKS
+  if (!list && function)
+    g_warning ("%s: unable to find child %p in notebook %p",
+	       function, child, notebook);
+#endif
+
+  return list;
+}
+
+static void
+ggg_notebook_remove_tab_label (GggNotebook     *notebook,
+			       GggNotebookPage *page)
+{
+  if (page->tab_label)
+    {
+      if (page->mnemonic_activate_signal)
+	g_signal_handler_disconnect (page->tab_label,
+				     page->mnemonic_activate_signal);
+      page->mnemonic_activate_signal = 0;
+
+      gtk_widget_set_state (page->tab_label, GTK_STATE_NORMAL);
+      gtk_widget_unparent (page->tab_label);
+      page->tab_label = NULL;
+    }
+}
+
+static void
+ggg_notebook_real_remove (GggNotebook *notebook,
+			  GList       *list)
+{
+  GggNotebookPrivate *priv;
+  GggNotebookPage *page;
+  GList * next_list;
+  gint need_resize = FALSE;
+  GtkWidget *tab_label;
+
+  gboolean destroying;
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  destroying = GTK_OBJECT_FLAGS (notebook) & GTK_IN_DESTRUCTION;
+  
+  next_list = ggg_notebook_search_page (notebook, list, STEP_PREV, TRUE);
+  if (!next_list)
+    next_list = ggg_notebook_search_page (notebook, list, STEP_NEXT, TRUE);
+
+  if (notebook->cur_page == list->data)
+    { 
+      notebook->cur_page = NULL;
+      if (next_list && !destroying)
+	ggg_notebook_switch_page (notebook, GGG_NOTEBOOK_PAGE (next_list));
+    }
+
+  if (priv->detached_tab == list->data)
+    priv->detached_tab = NULL;
+
+  if (list == notebook->first_tab)
+    notebook->first_tab = next_list;
+  if (list == notebook->focus_tab && !destroying)
+    ggg_notebook_switch_focus_tab (notebook, next_list);
+
+  page = list->data;
+  
+  g_signal_handler_disconnect (page->child, page->notify_visible_handler); 
+
+  if (GTK_WIDGET_VISIBLE (page->child) && GTK_WIDGET_VISIBLE (notebook))
+    need_resize = TRUE;
+
+  gtk_widget_unparent (page->child);
+
+  tab_label = page->tab_label;
+  if (tab_label)
+    {
+      g_object_ref (tab_label);
+      ggg_notebook_remove_tab_label (notebook, page);
+      if (destroying)
+        gtk_widget_destroy (tab_label);
+      g_object_unref (tab_label);
+    }
+
+  if (notebook->menu)
+    {
+      gtk_container_remove (GTK_CONTAINER (notebook->menu), 
+			    page->menu_label->parent);
+      gtk_widget_queue_resize (notebook->menu);
+    }
+  if (!page->default_menu)
+    g_object_unref (page->menu_label);
+  
+  notebook->children = g_list_remove_link (notebook->children, list);
+  g_list_free (list);
+
+  if (page->last_focus_child)
+    {
+      g_object_remove_weak_pointer (G_OBJECT (page->last_focus_child), (gpointer *)&page->last_focus_child);
+      page->last_focus_child = NULL;
+    }
+  
+  g_free (page);
+
+  ggg_notebook_update_labels (notebook);
+  if (need_resize)
+    gtk_widget_queue_resize (GTK_WIDGET (notebook));
+}
+
+static void
+ggg_notebook_update_labels (GggNotebook *notebook)
+{
+  GggNotebookPage *page;
+  GList *list;
+  gchar string[32];
+  gint page_num = 1;
+
+  if (!notebook->show_tabs && !notebook->menu)
+    return;
+
+  for (list = ggg_notebook_search_page (notebook, NULL, STEP_NEXT, FALSE);
+       list;
+       list = ggg_notebook_search_page (notebook, list, STEP_NEXT, FALSE))
+    {
+      page = list->data;
+      g_snprintf (string, sizeof(string), _("Page %u"), page_num++);
+      if (notebook->show_tabs)
+	{
+	  if (page->default_tab)
+	    {
+	      if (!page->tab_label)
+		{
+		  page->tab_label = gtk_label_new (string);
+		  gtk_widget_set_parent (page->tab_label,
+					 GTK_WIDGET (notebook));
+		}
+	      else
+		gtk_label_set_text (GTK_LABEL (page->tab_label), string);
+	    }
+
+	  if (GTK_WIDGET_VISIBLE (page->child) &&
+	      !GTK_WIDGET_VISIBLE (page->tab_label))
+	    gtk_widget_show (page->tab_label);
+	  else if (!GTK_WIDGET_VISIBLE (page->child) &&
+		   GTK_WIDGET_VISIBLE (page->tab_label))
+	    gtk_widget_hide (page->tab_label);
+	}
+      if (notebook->menu && page->default_menu)
+	{
+	  if (page->tab_label && GTK_IS_LABEL (page->tab_label))
+	    gtk_label_set_text (GTK_LABEL (page->menu_label),
+			   GTK_LABEL (page->tab_label)->label);
+	  else
+	    gtk_label_set_text (GTK_LABEL (page->menu_label), string);
+	}
+    }  
+}
+
+static gint
+ggg_notebook_real_page_position (GggNotebook *notebook,
+				 GList       *list)
+{
+  GList *work;
+  gint count_start;
+
+  for (work = notebook->children, count_start = 0;
+       work && work != list; work = work->next)
+    if (GGG_NOTEBOOK_PAGE (work)->pack == GTK_PACK_START)
+      count_start++;
+
+  if (!work)
+    return -1;
+
+  if (GGG_NOTEBOOK_PAGE (list)->pack == GTK_PACK_START)
+    return count_start;
+
+  return (count_start + g_list_length (list) - 1);
+}
+
+static GList *
+ggg_notebook_search_page (GggNotebook *notebook,
+			  GList       *list,
+			  gint         direction,
+			  gboolean     find_visible)
+{
+  GggNotebookPage *page = NULL;
+  GList *old_list = NULL;
+  gint flag = 0;
+
+  switch (direction)
+    {
+    case STEP_PREV:
+      flag = GTK_PACK_END;
+      break;
+
+    case STEP_NEXT:
+      flag = GTK_PACK_START;
+      break;
+    }
+
+  if (list)
+    page = list->data;
+
+  if (!page || page->pack == flag)
+    {
+      if (list)
+	{
+	  old_list = list;
+	  list = list->next;
+	}
+      else
+	list = notebook->children;
+
+      while (list)
+	{
+	  page = list->data;
+	  if (page->pack == flag &&
+	      (!find_visible ||
+	       (GTK_WIDGET_VISIBLE (page->child) &&
+		(!page->tab_label || NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page)))))
+	    return list;
+	  old_list = list;
+	  list = list->next;
+	}
+      list = old_list;
+    }
+  else
+    {
+      old_list = list;
+      list = list->prev;
+    }
+  while (list)
+    {
+      page = list->data;
+      if (page->pack != flag &&
+	  (!find_visible ||
+	   (GTK_WIDGET_VISIBLE (page->child) &&
+	    (!page->tab_label || NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page)))))
+	return list;
+      old_list = list;
+      list = list->prev;
+    }
+  return NULL;
+}
+
+/* Private GggNotebook Drawing Functions:
+ *
+ * ggg_notebook_paint
+ * ggg_notebook_draw_tab
+ * ggg_notebook_draw_arrow
+ */
+static void
+ggg_notebook_paint (GtkWidget    *widget,
+		    GdkRectangle *area)
+{
+  GggNotebook *notebook;
+  GggNotebookPrivate *priv;
+  GggNotebookPage *page;
+  GList *children;
+  gboolean showarrow;
+  gint width, height;
+  gint x, y;
+  gint border_width = GTK_CONTAINER (widget)->border_width;
+  gint gap_x = 0, gap_width = 0, step = STEP_PREV;
+  gboolean is_rtl;
+  gint tab_pos;
+   
+  if (!GTK_WIDGET_DRAWABLE (widget))
+    return;
+
+  notebook = GGG_NOTEBOOK (widget);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
+  tab_pos = get_effective_tab_pos (notebook);
+
+  if ((!notebook->show_tabs && !notebook->show_border) ||
+      !notebook->cur_page || !GTK_WIDGET_VISIBLE (notebook->cur_page->child))
+    return;
+
+  x = widget->allocation.x + border_width;
+  y = widget->allocation.y + border_width;
+  width = widget->allocation.width - border_width * 2;
+  height = widget->allocation.height - border_width * 2;
+
+  if (notebook->show_border && (!notebook->show_tabs || !notebook->children))
+    {
+      gtk_paint_box (widget->style, widget->window,
+		     GTK_STATE_NORMAL, GTK_SHADOW_OUT,
+		     area, widget, (char *)"notebook",
+		     x, y, width, height);
+      return;
+    }
+
+  if (!notebook->first_tab)
+    notebook->first_tab = notebook->children;
+
+  if (!GTK_WIDGET_MAPPED (notebook->cur_page->tab_label))
+    page = GGG_NOTEBOOK_PAGE (notebook->first_tab);
+  else
+    page = notebook->cur_page;
+
+  switch (tab_pos)
+    {
+    case GTK_POS_TOP:
+      y += page->allocation.height;
+      /* fall thru */
+    case GTK_POS_BOTTOM:
+      height -= page->allocation.height;
+      break;
+    case GTK_POS_LEFT:
+      x += page->allocation.width;
+      /* fall thru */
+    case GTK_POS_RIGHT:
+      width -= page->allocation.width;
+      break;
+    }
+
+  if (!NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, notebook->cur_page) ||
+      !GTK_WIDGET_MAPPED (notebook->cur_page->tab_label))
+    {
+      gap_x = 0;
+      gap_width = 0;
+    }
+  else
+    {
+      switch (tab_pos)
+	{
+	case GTK_POS_TOP:
+	case GTK_POS_BOTTOM:
+	  if (priv->operation == DRAG_OPERATION_REORDER)
+	    gap_x = priv->drag_window_x - widget->allocation.x - border_width;
+	  else
+	    gap_x = notebook->cur_page->allocation.x - widget->allocation.x - border_width;
+
+	  gap_width = notebook->cur_page->allocation.width;
+	  step = is_rtl ? STEP_NEXT : STEP_PREV;
+	  break;
+	case GTK_POS_LEFT:
+	case GTK_POS_RIGHT:
+	  if (priv->operation == DRAG_OPERATION_REORDER)
+	    gap_x = priv->drag_window_y - border_width - widget->allocation.y;
+	  else
+	    gap_x = notebook->cur_page->allocation.y - widget->allocation.y - border_width;
+
+	  gap_width = notebook->cur_page->allocation.height;
+	  step = STEP_PREV;
+	  break;
+	}
+    }
+  gtk_paint_box_gap (widget->style, widget->window,
+		     GTK_STATE_NORMAL, GTK_SHADOW_OUT,
+		     area, widget, (char *)"notebook",
+		     x, y, width, height,
+		     tab_pos, gap_x, gap_width);
+
+  showarrow = FALSE;
+  children = ggg_notebook_search_page (notebook, NULL, step, TRUE);
+  while (children)
+    {
+      page = children->data;
+      children = ggg_notebook_search_page (notebook, children,
+					   step, TRUE);
+      if (!GTK_WIDGET_VISIBLE (page->child))
+	continue;
+      if (!GTK_WIDGET_MAPPED (page->tab_label))
+	showarrow = TRUE;
+      else if (page != notebook->cur_page)
+	ggg_notebook_draw_tab (notebook, page, area);
+    }
+
+  if (showarrow && notebook->scrollable) 
+    {
+      if (notebook->has_before_previous)
+	ggg_notebook_draw_arrow (notebook, ARROW_LEFT_BEFORE);
+      if (notebook->has_before_next)
+	ggg_notebook_draw_arrow (notebook, ARROW_RIGHT_BEFORE);
+      if (notebook->has_after_previous)
+	ggg_notebook_draw_arrow (notebook, ARROW_LEFT_AFTER);
+      if (notebook->has_after_next)
+	ggg_notebook_draw_arrow (notebook, ARROW_RIGHT_AFTER);
+    }
+  ggg_notebook_draw_tab (notebook, notebook->cur_page, area);
+}
+
+static void
+ggg_notebook_draw_tab (GggNotebook     *notebook,
+		       GggNotebookPage *page,
+		       GdkRectangle    *area)
+{
+  GggNotebookPrivate *priv;
+  GdkRectangle child_area;
+  GdkRectangle page_area;
+  GtkStateType state_type;
+  GtkPositionType gap_side;
+  GdkWindow *window;
+  GtkWidget *widget;
+  
+  if (!NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) ||
+      !GTK_WIDGET_MAPPED (page->tab_label) ||
+      (page->allocation.width == 0) || (page->allocation.height == 0))
+    return;
+
+  widget = GTK_WIDGET (notebook);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+  if (priv->operation == DRAG_OPERATION_REORDER && page == notebook->cur_page)
+    window = priv->drag_window;
+  else
+    window = widget->window;
+
+  page_area.x = page->allocation.x;
+  page_area.y = page->allocation.y;
+  page_area.width = page->allocation.width;
+  page_area.height = page->allocation.height;
+
+  if (gdk_rectangle_intersect (&page_area, area, &child_area))
+    {
+      gap_side = get_tab_gap_pos (notebook);
+
+      if (notebook->cur_page == page)
+	state_type = GTK_STATE_NORMAL;
+      else 
+	state_type = GTK_STATE_ACTIVE;
+
+      gtk_paint_extension (widget->style, window,
+			   state_type, GTK_SHADOW_OUT,
+			   area, widget, (char *)"tab",
+			   page_area.x, page_area.y,
+			   page_area.width, page_area.height,
+			   gap_side);
+    }
+}
+
+static void
+ggg_notebook_draw_arrow (GggNotebook      *notebook,
+			 GggNotebookArrow  nbarrow)
+{
+  GtkStateType state_type;
+  GtkShadowType shadow_type;
+  GtkWidget *widget;
+  GdkRectangle arrow_rect;
+  GtkArrowType arrow;
+  gboolean is_rtl, left;
+
+  if (GTK_WIDGET_DRAWABLE (notebook))
+    {
+      gint scroll_arrow_hlength;
+      gint scroll_arrow_vlength;
+      gint arrow_size;
+
+      ggg_notebook_get_arrow_rect (notebook, &arrow_rect, nbarrow);
+
+      widget = GTK_WIDGET (notebook);
+
+      is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
+      left = (ARROW_IS_LEFT (nbarrow) && !is_rtl) ||
+             (!ARROW_IS_LEFT (nbarrow) && is_rtl); 
+
+      gtk_widget_style_get (widget,
+                            "scroll-arrow-hlength", &scroll_arrow_hlength,
+                            "scroll-arrow-vlength", &scroll_arrow_vlength,
+                            NULL);
+
+      if (notebook->in_child == nbarrow)
+        {
+          if (notebook->click_child == nbarrow)
+            state_type = GTK_STATE_ACTIVE;
+          else
+            state_type = GTK_STATE_PRELIGHT;
+        }
+      else
+        state_type = GTK_WIDGET_STATE (widget);
+
+      if (notebook->click_child == nbarrow)
+        shadow_type = GTK_SHADOW_IN;
+      else
+        shadow_type = GTK_SHADOW_OUT;
+
+      if (notebook->focus_tab &&
+	  !ggg_notebook_search_page (notebook, notebook->focus_tab,
+				     left ? STEP_PREV : STEP_NEXT, TRUE))
+	{
+	  shadow_type = GTK_SHADOW_ETCHED_IN;
+	  state_type = GTK_STATE_INSENSITIVE;
+	}
+      
+      if (notebook->tab_pos == GTK_POS_LEFT ||
+	  notebook->tab_pos == GTK_POS_RIGHT)
+        {
+          arrow = (ARROW_IS_LEFT (nbarrow) ? GTK_ARROW_UP : GTK_ARROW_DOWN);
+          arrow_size = scroll_arrow_vlength;
+        }
+      else
+        {
+          arrow = (ARROW_IS_LEFT (nbarrow) ? GTK_ARROW_LEFT : GTK_ARROW_RIGHT);
+          arrow_size = scroll_arrow_hlength;
+        }
+     
+      gtk_paint_arrow (widget->style, widget->window, state_type, 
+		       shadow_type, NULL, widget, "notebook",
+		       arrow, TRUE, arrow_rect.x, arrow_rect.y, 
+		       arrow_size, arrow_size);
+    }
+}
+
+/* Private GggNotebook Size Allocate Functions:
+ *
+ * ggg_notebook_tab_space
+ * ggg_notebook_calculate_shown_tabs
+ * ggg_notebook_calculate_tabs_allocation
+ * ggg_notebook_pages_allocate
+ * ggg_notebook_page_allocate
+ * ggg_notebook_calc_tabs
+ */
+static void
+ggg_notebook_tab_space (GggNotebook *notebook,
+			gboolean    *show_arrows,
+			gint        *min,
+			gint        *max,
+			gint        *tab_space)
+{
+  GggNotebookPrivate *priv;
+  GtkWidget *widget;
+  GList *children;
+  gint tab_pos = get_effective_tab_pos (notebook);
+  gint tab_overlap;
+  gint arrow_spacing;
+  gint scroll_arrow_hlength;
+  gint scroll_arrow_vlength;
+
+  widget = GTK_WIDGET (notebook);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  children = notebook->children;
+
+  gtk_widget_style_get (GTK_WIDGET (notebook),
+                        "arrow-spacing", &arrow_spacing,
+                        "scroll-arrow-hlength", &scroll_arrow_hlength,
+                        "scroll-arrow-vlength", &scroll_arrow_vlength,
+                        NULL);
+
+  switch (tab_pos)
+    {
+    case GTK_POS_TOP:
+    case GTK_POS_BOTTOM:
+      *min = widget->allocation.x + GTK_CONTAINER (notebook)->border_width;
+      *max = widget->allocation.x + widget->allocation.width - GTK_CONTAINER (notebook)->border_width;
+
+      while (children)
+	{
+          GggNotebookPage *page;
+
+	  page = children->data;
+	  children = children->next;
+
+	  if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) &&
+	      GTK_WIDGET_VISIBLE (page->child))
+	    *tab_space += page->requisition.width;
+	}
+      break;
+    case GTK_POS_RIGHT:
+    case GTK_POS_LEFT:
+      *min = widget->allocation.y + GTK_CONTAINER (notebook)->border_width;
+      *max = widget->allocation.y + widget->allocation.height - GTK_CONTAINER (notebook)->border_width;
+
+      while (children)
+	{
+          GggNotebookPage *page;
+
+	  page = children->data;
+	  children = children->next;
+
+	  if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) &&
+	      GTK_WIDGET_VISIBLE (page->child))
+	    *tab_space += page->requisition.height;
+	}
+      break;
+    }
+
+  if (!notebook->scrollable)
+    *show_arrows = FALSE;
+  else
+    {
+      gtk_widget_style_get (widget, "tab-overlap", &tab_overlap, NULL);
+
+      switch (tab_pos)
+	{
+	case GTK_POS_TOP:
+	case GTK_POS_BOTTOM:
+	  if (*tab_space > *max - *min - tab_overlap)
+	    {
+	      *show_arrows = TRUE;
+
+	      /* take arrows into account */
+	      *tab_space = widget->allocation.width - tab_overlap -
+		2 * GTK_CONTAINER (notebook)->border_width;
+
+	      if (notebook->has_after_previous)
+		{
+		  *tab_space -= arrow_spacing + scroll_arrow_hlength;
+		  *max -= arrow_spacing + scroll_arrow_hlength;
+		}
+
+	      if (notebook->has_after_next)
+		{
+		  *tab_space -= arrow_spacing + scroll_arrow_hlength;
+		  *max -= arrow_spacing + scroll_arrow_hlength;
+		}
+
+	      if (notebook->has_before_previous)
+		{
+		  *tab_space -= arrow_spacing + scroll_arrow_hlength;
+		  *min += arrow_spacing + scroll_arrow_hlength;
+		}
+
+	      if (notebook->has_before_next)
+		{
+		  *tab_space -= arrow_spacing + scroll_arrow_hlength;
+		  *min += arrow_spacing + scroll_arrow_hlength;
+		}
+	    }
+	  break;
+	case GTK_POS_LEFT:
+	case GTK_POS_RIGHT:
+	  if (*tab_space > *max - *min - tab_overlap)
+	    {
+	      *show_arrows = TRUE;
+
+	      /* take arrows into account */
+	      *tab_space = widget->allocation.height -
+		tab_overlap - 2 * GTK_CONTAINER (notebook)->border_width;
+
+	      if (notebook->has_after_previous || notebook->has_after_next)
+		{
+		  *tab_space -= arrow_spacing + scroll_arrow_vlength;
+		  *max -= arrow_spacing + scroll_arrow_vlength;
+		}
+
+	      if (notebook->has_before_previous || notebook->has_before_next)
+		{
+		  *tab_space -= arrow_spacing + scroll_arrow_vlength;
+		  *min += arrow_spacing + scroll_arrow_vlength;
+		}
+	    }
+	  break;
+	}
+    }
+}
+
+static void
+ggg_notebook_calculate_shown_tabs (GggNotebook *notebook,
+				   gboolean     show_arrows,
+				   gint         min,
+				   gint         max,
+				   gint         tab_space,
+				   GList      **last_child,
+				   gint        *n,
+				   gint        *remaining_space)
+{
+  GtkWidget *widget;
+  GtkContainer *container;
+  GList *children;
+  GggNotebookPage *page;
+  gint tab_pos, tab_overlap;
+  
+  widget = GTK_WIDGET (notebook);
+  container = GTK_CONTAINER (notebook);
+  gtk_widget_style_get (widget, "tab-overlap", &tab_overlap, NULL);
+  tab_pos = get_effective_tab_pos (notebook);
+
+  if (show_arrows) /* first_tab <- focus_tab */
+    {
+      *remaining_space = tab_space;
+
+      if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, notebook->cur_page) &&
+	  GTK_WIDGET_VISIBLE (notebook->cur_page->child))
+	{
+	  ggg_notebook_calc_tabs (notebook,
+				  notebook->focus_tab,
+				  &(notebook->focus_tab),
+				  remaining_space, STEP_NEXT);
+	}
+
+      if (tab_space <= 0 || *remaining_space < 0)
+	{
+	  /* show 1 tab */
+	  notebook->first_tab = notebook->focus_tab;
+	  *last_child = ggg_notebook_search_page (notebook, notebook->focus_tab,
+						  STEP_NEXT, TRUE);
+	  page = notebook->first_tab->data;
+	  *remaining_space = tab_space - page->requisition.width;
+	  *n = 1;
+	}
+      else
+	{
+	  children = NULL;
+
+	  if (notebook->first_tab && notebook->first_tab != notebook->focus_tab)
+	    {
+	      /* Is first_tab really predecessor of focus_tab? */
+	      page = notebook->first_tab->data;
+	      if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) &&
+		  GTK_WIDGET_VISIBLE (page->child))
+		for (children = notebook->focus_tab;
+		     children && children != notebook->first_tab;
+		     children = ggg_notebook_search_page (notebook,
+							  children,
+							  STEP_PREV,
+							  TRUE));
+	    }
+
+	  if (!children)
+	    {
+	      if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, notebook->cur_page))
+		notebook->first_tab = notebook->focus_tab;
+	      else
+		notebook->first_tab = ggg_notebook_search_page (notebook, notebook->focus_tab,
+								STEP_NEXT, TRUE);
+	    }
+	  else
+	    /* calculate shown tabs counting backwards from the focus tab */
+	    ggg_notebook_calc_tabs (notebook,
+				    ggg_notebook_search_page (notebook,
+							      notebook->focus_tab,
+							      STEP_PREV,
+							      TRUE),
+				    &(notebook->first_tab), remaining_space,
+				    STEP_PREV);
+
+	  if (*remaining_space < 0)
+	    {
+	      notebook->first_tab =
+		ggg_notebook_search_page (notebook, notebook->first_tab,
+					  STEP_NEXT, TRUE);
+	      if (!notebook->first_tab)
+		notebook->first_tab = notebook->focus_tab;
+
+	      *last_child = ggg_notebook_search_page (notebook, notebook->focus_tab,
+						      STEP_NEXT, TRUE); 
+	    }
+	  else /* focus_tab -> end */   
+	    {
+	      if (!notebook->first_tab)
+		notebook->first_tab = ggg_notebook_search_page (notebook,
+								NULL,
+								STEP_NEXT,
+								TRUE);
+	      children = NULL;
+	      ggg_notebook_calc_tabs (notebook,
+				      ggg_notebook_search_page (notebook,
+								notebook->focus_tab,
+								STEP_NEXT,
+								TRUE),
+				      &children, remaining_space, STEP_NEXT);
+
+	      if (*remaining_space <= 0) 
+		*last_child = children;
+	      else /* start <- first_tab */
+		{
+		  *last_child = NULL;
+		  children = NULL;
+
+		  ggg_notebook_calc_tabs (notebook,
+					  ggg_notebook_search_page (notebook,
+								    notebook->first_tab,
+								    STEP_PREV,
+								    TRUE),
+					  &children, remaining_space, STEP_PREV);
+
+		  if (*remaining_space == 0)
+		    notebook->first_tab = children;
+		  else
+		    notebook->first_tab = ggg_notebook_search_page(notebook,
+								   children,
+								   STEP_NEXT,
+								   TRUE);
+		}
+	    }
+
+	  if (*remaining_space < 0) 
+	    {
+	      /* calculate number of tabs */
+	      *remaining_space = - (*remaining_space);
+	      *n = 0;
+
+	      for (children = notebook->first_tab;
+		   children && children != *last_child;
+		   children = ggg_notebook_search_page (notebook, children,
+							STEP_NEXT, TRUE))
+		(*n)++;
+	    }
+	  else 
+	    *remaining_space = 0;
+	}
+
+      /* unmap all non-visible tabs */
+      for (children = ggg_notebook_search_page (notebook, NULL,
+						STEP_NEXT, TRUE);
+	   children && children != notebook->first_tab;
+	   children = ggg_notebook_search_page (notebook, children,
+						STEP_NEXT, TRUE))
+	{
+	  page = children->data;
+
+	  if (page->tab_label &&
+	      NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page))
+	    gtk_widget_set_child_visible (page->tab_label, FALSE);
+	}
+
+      for (children = *last_child; children;
+	   children = ggg_notebook_search_page (notebook, children,
+						STEP_NEXT, TRUE))
+	{
+	  page = children->data;
+
+	  if (page->tab_label &&
+	      NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page))
+	    gtk_widget_set_child_visible (page->tab_label, FALSE);
+	}
+    }
+  else /* !show_arrows */
+    {
+      gint c = 0;
+      *n = 0;
+
+      *remaining_space = max - min - tab_overlap - tab_space;
+      children = notebook->children;
+      notebook->first_tab = ggg_notebook_search_page (notebook, NULL,
+						      STEP_NEXT, TRUE);
+      while (children)
+	{
+	  page = children->data;
+	  children = children->next;
+
+	  if (!NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) ||
+	      !GTK_WIDGET_VISIBLE (page->child))
+	    continue;
+
+	  c++;
+
+	  if (page->expand)
+	    (*n)++;
+	}
+
+      /* if notebook is homogeneous, all tabs are expanded */
+      if (notebook->homogeneous && *n)
+	*n = c;
+    }
+}
+
+static gboolean
+get_allocate_at_bottom (GtkWidget *widget,
+			gint       search_direction)
+{
+  gboolean is_rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
+  gboolean tab_pos = get_effective_tab_pos (GGG_NOTEBOOK (widget));
+
+  switch (tab_pos)
+    {
+    case GTK_POS_TOP:
+    case GTK_POS_BOTTOM:
+      if (!is_rtl)
+	return (search_direction == STEP_PREV);
+      else
+	return (search_direction == STEP_NEXT);
+
+      break;
+    case GTK_POS_RIGHT:
+    case GTK_POS_LEFT:
+      return (search_direction == STEP_PREV);
+      break;
+    }
+
+  return FALSE;
+}
+
+static gboolean
+ggg_notebook_calculate_tabs_allocation (GggNotebook  *notebook,
+					GList       **children,
+					GList        *last_child,
+					gboolean      showarrow,
+					gint          direction,
+					gint         *remaining_space,
+					gint         *expanded_tabs,
+					gint          min,
+					gint          max)
+{
+  GtkWidget *widget;
+  GtkContainer *container;
+  GggNotebookPrivate *priv;
+  GggNotebookPage *page;
+  gboolean allocate_at_bottom;
+  gint tab_overlap, tab_pos, tab_extra_space;
+  gint left_x, right_x, top_y, bottom_y, anchor;
+  gint xthickness, ythickness;
+  gboolean gap_left, packing_changed;
+  GtkAllocation child_allocation = { 0, };
+  gboolean allocation_changed = FALSE;
+
+  widget = GTK_WIDGET (notebook);
+  container = GTK_CONTAINER (notebook);
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  gtk_widget_style_get (widget, "tab-overlap", &tab_overlap, NULL);
+  tab_pos = get_effective_tab_pos (notebook);
+  allocate_at_bottom = get_allocate_at_bottom (widget, direction);
+  anchor = 0;
+
+  child_allocation.x = widget->allocation.x + container->border_width;
+  child_allocation.y = widget->allocation.y + container->border_width;
+
+  xthickness = widget->style->xthickness;
+  ythickness = widget->style->ythickness;
+
+  switch (tab_pos)
+    {
+    case GTK_POS_BOTTOM:
+      child_allocation.y = widget->allocation.y + widget->allocation.height -
+	notebook->cur_page->requisition.height - container->border_width;
+      /* fall through */
+    case GTK_POS_TOP:
+      child_allocation.x = (allocate_at_bottom) ? max : min;
+      child_allocation.height = notebook->cur_page->requisition.height;
+      anchor = child_allocation.x;
+      break;
+      
+    case GTK_POS_RIGHT:
+      child_allocation.x = widget->allocation.x + widget->allocation.width -
+	notebook->cur_page->requisition.width - container->border_width;
+      /* fall through */
+    case GTK_POS_LEFT:
+      child_allocation.y = (allocate_at_bottom) ? max : min;
+      child_allocation.width = notebook->cur_page->requisition.width;
+      anchor = child_allocation.y;
+      break;
+    }
+
+  left_x   = CLAMP (priv->mouse_x - priv->drag_offset_x,
+		    min, max - notebook->cur_page->allocation.width);
+  top_y    = CLAMP (priv->mouse_y - priv->drag_offset_y,
+		    min, max - notebook->cur_page->allocation.height);
+  right_x  = left_x + notebook->cur_page->allocation.width;
+  bottom_y = top_y + notebook->cur_page->allocation.height;
+  gap_left = packing_changed = FALSE;
+
+  while (*children && *children != last_child)
+    {
+      page = (*children)->data;
+
+      if (direction == STEP_NEXT && page->pack != GTK_PACK_START)
+	{
+	  if (!showarrow)
+	    break;
+	  else if (priv->operation == DRAG_OPERATION_REORDER)
+	    packing_changed = TRUE;
+	}
+
+      if (direction == STEP_NEXT)
+	*children = ggg_notebook_search_page (notebook, *children, direction, TRUE);
+      else
+	{
+	  *children = (*children)->next;
+
+          if (page->pack != GTK_PACK_END || !GTK_WIDGET_VISIBLE (page->child))
+	    continue;
+	}
+
+      if (!NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page))
+	continue;
+
+      tab_extra_space = 0;
+      if (*expanded_tabs && (showarrow || page->expand || notebook->homogeneous))
+	{
+	  tab_extra_space = *remaining_space / *expanded_tabs;
+	  *remaining_space -= tab_extra_space;
+	  (*expanded_tabs)--;
+	}
+
+      switch (tab_pos)
+	{
+	case GTK_POS_TOP:
+	case GTK_POS_BOTTOM:
+	  child_allocation.width = page->requisition.width + tab_overlap + tab_extra_space;
+
+	  /* make sure that the reordered tab doesn't go past the last position */
+	  if (priv->operation == DRAG_OPERATION_REORDER &&
+	      !gap_left && packing_changed)
+	    {
+	      if (!allocate_at_bottom)
+		{
+		  if ((notebook->cur_page->pack == GTK_PACK_START && left_x >= anchor) ||
+		      (notebook->cur_page->pack == GTK_PACK_END && left_x < anchor))
+		    {
+		      left_x = priv->drag_window_x = anchor;
+		      anchor += notebook->cur_page->allocation.width - tab_overlap;
+		    }
+		}
+	      else
+		{
+		  if ((notebook->cur_page->pack == GTK_PACK_START && right_x <= anchor) ||
+		      (notebook->cur_page->pack == GTK_PACK_END && right_x > anchor))
+		    {
+		      anchor -= notebook->cur_page->allocation.width;
+		      left_x = priv->drag_window_x = anchor;
+		      anchor += tab_overlap;
+		    }
+		}
+
+	      gap_left = TRUE;
+	    }
+
+	  if (priv->operation == DRAG_OPERATION_REORDER && page == notebook->cur_page)
+	    {
+	      priv->drag_window_x = left_x;
+	      priv->drag_window_y = child_allocation.y;
+	    }
+ 	  else
+ 	    {
+ 	      if (allocate_at_bottom)
+		anchor -= child_allocation.width;
+ 
+ 	      if (priv->operation == DRAG_OPERATION_REORDER && page->pack == notebook->cur_page->pack)
+ 		{
+ 		  if (!allocate_at_bottom &&
+ 		      left_x >= anchor &&
+ 		      left_x <= anchor + child_allocation.width / 2)
+ 		    anchor += notebook->cur_page->allocation.width - tab_overlap;
+ 		  else if (allocate_at_bottom &&
+ 			   right_x >= anchor + child_allocation.width / 2 &&
+ 			   right_x <= anchor + child_allocation.width)
+ 		    anchor -= notebook->cur_page->allocation.width - tab_overlap;
+ 		}
+
+	      child_allocation.x = anchor;
+ 	    }
+
+	  break;
+	case GTK_POS_LEFT:
+	case GTK_POS_RIGHT:
+	  child_allocation.height = page->requisition.height + tab_overlap + tab_extra_space;
+
+	  /* make sure that the reordered tab doesn't go past the last position */
+	  if (priv->operation == DRAG_OPERATION_REORDER &&
+	      !gap_left && packing_changed)
+	    {
+	      if (!allocate_at_bottom &&
+		  ((notebook->cur_page->pack == GTK_PACK_START && top_y >= anchor) ||
+		   (notebook->cur_page->pack == GTK_PACK_END && top_y < anchor)))
+		{
+		  top_y = priv->drag_window_y = anchor;
+		  anchor += notebook->cur_page->allocation.height - tab_overlap;
+		}
+ 
+	      gap_left = TRUE;
+	    }
+
+	  if (priv->operation == DRAG_OPERATION_REORDER && page == notebook->cur_page)
+	    {
+	      priv->drag_window_x = child_allocation.x;
+	      priv->drag_window_y = top_y;
+	    }
+ 	  else
+ 	    {
+	      if (allocate_at_bottom)
+		anchor -= child_allocation.height;
+
+ 	      if (priv->operation == DRAG_OPERATION_REORDER && page->pack == notebook->cur_page->pack)
+		{
+		  if (!allocate_at_bottom &&
+		      top_y >= anchor &&
+		      top_y <= anchor + child_allocation.height / 2)
+		    anchor += notebook->cur_page->allocation.height - tab_overlap;
+		  else if (allocate_at_bottom &&
+			   bottom_y >= anchor + child_allocation.height / 2 &&
+			   bottom_y <= anchor + child_allocation.height)
+		    anchor -= notebook->cur_page->allocation.height - tab_overlap;
+		}
+
+	      child_allocation.y = anchor;
+ 	    }
+
+	  break;
+	}
+
+      if ((priv->operation != DRAG_OPERATION_REORDER || page != notebook->cur_page) &&
+	  (page->allocation.x != child_allocation.x ||
+	   page->allocation.y != child_allocation.y ||
+	   page->allocation.width != child_allocation.width ||
+	   page->allocation.height != child_allocation.height))
+	allocation_changed = TRUE;
+
+      page->allocation = child_allocation;
+
+      if ((page == priv->detached_tab && priv->operation == DRAG_OPERATION_DETACH) ||
+	  (page == notebook->cur_page && priv->operation == DRAG_OPERATION_REORDER))
+	{
+	  /* needs to be allocated at 0,0
+	   * to be shown in the drag window */
+	  page->allocation.x = 0;
+	  page->allocation.y = 0;
+	}
+      
+      if (page != notebook->cur_page)
+	{
+	  switch (tab_pos)
+	    {
+	    case GTK_POS_TOP:
+	      page->allocation.y += ythickness;
+	      /* fall through */
+	    case GTK_POS_BOTTOM:
+	      page->allocation.height = MAX (1, page->allocation.height - ythickness);
+	      break;
+	    case GTK_POS_LEFT:
+	      page->allocation.x += xthickness;
+	      /* fall through */
+	    case GTK_POS_RIGHT:
+	      page->allocation.width = MAX (1, page->allocation.width - xthickness);
+	      break;
+	    }
+	}
+
+      /* calculate whether to leave a gap based on reorder operation or not */
+      switch (tab_pos)
+	{
+	case GTK_POS_TOP:
+	case GTK_POS_BOTTOM:
+ 	  if (priv->operation != DRAG_OPERATION_REORDER ||
+	      (priv->operation == DRAG_OPERATION_REORDER && page != notebook->cur_page))
+ 	    {
+ 	      if (priv->operation == DRAG_OPERATION_REORDER)
+ 		{
+ 		  if (page->pack == notebook->cur_page->pack &&
+ 		      !allocate_at_bottom &&
+ 		      left_x >  anchor + child_allocation.width / 2 &&
+ 		      left_x <= anchor + child_allocation.width)
+ 		    anchor += notebook->cur_page->allocation.width - tab_overlap;
+ 		  else if (page->pack == notebook->cur_page->pack &&
+ 			   allocate_at_bottom &&
+ 			   right_x >= anchor &&
+ 			   right_x <= anchor + child_allocation.width / 2)
+ 		    anchor -= notebook->cur_page->allocation.width - tab_overlap;
+ 		}
+ 
+ 	      if (!allocate_at_bottom)
+ 		anchor += child_allocation.width - tab_overlap;
+ 	      else
+ 		anchor += tab_overlap;
+ 	    }
+
+	  break;
+	case GTK_POS_LEFT:
+	case GTK_POS_RIGHT:
+ 	  if (priv->operation != DRAG_OPERATION_REORDER  ||
+	      (priv->operation == DRAG_OPERATION_REORDER && page != notebook->cur_page))
+ 	    {
+ 	      if (priv->operation == DRAG_OPERATION_REORDER)
+		{
+		  if (page->pack == notebook->cur_page->pack &&
+		      !allocate_at_bottom &&
+		      top_y >= anchor + child_allocation.height / 2 &&
+		      top_y <= anchor + child_allocation.height)
+		    anchor += notebook->cur_page->allocation.height - tab_overlap;
+		  else if (page->pack == notebook->cur_page->pack &&
+			   allocate_at_bottom &&
+			   bottom_y >= anchor &&
+			   bottom_y <= anchor + child_allocation.height / 2)
+		    anchor -= notebook->cur_page->allocation.height - tab_overlap;
+		}
+
+	      if (!allocate_at_bottom)
+		anchor += child_allocation.height - tab_overlap;
+	      else
+		anchor += tab_overlap;
+ 	    }
+
+	  break;
+	}
+
+      /* set child visible */
+      if (page->tab_label)
+	gtk_widget_set_child_visible (page->tab_label, TRUE);
+    }
+
+  /* Don't move the current tab past the last position during tabs reordering */
+  if (children &&
+      priv->operation == DRAG_OPERATION_REORDER &&
+      ((direction == STEP_NEXT && notebook->cur_page->pack == GTK_PACK_START) ||
+       ((direction == STEP_PREV || packing_changed) && notebook->cur_page->pack == GTK_PACK_END)))
+    {
+      switch (tab_pos)
+	{
+	case GTK_POS_TOP:
+	case GTK_POS_BOTTOM:
+	  if (allocate_at_bottom)
+	    anchor -= notebook->cur_page->allocation.width;
+
+	  if ((!allocate_at_bottom && priv->drag_window_x > anchor) ||
+	      (allocate_at_bottom && priv->drag_window_x < anchor))
+	    priv->drag_window_x = anchor;
+	  break;
+	case GTK_POS_LEFT:
+	case GTK_POS_RIGHT:
+	  if (allocate_at_bottom)
+	    anchor -= notebook->cur_page->allocation.height;
+
+	  if ((!allocate_at_bottom && priv->drag_window_y > anchor) ||
+	      (allocate_at_bottom && priv->drag_window_y < anchor))
+	    priv->drag_window_y = anchor;
+	  break;
+	}
+    }
+
+  return allocation_changed;
+}
+
+static void
+ggg_notebook_pages_allocate (GggNotebook *notebook)
+{
+  GList *children = NULL;
+  GList *last_child = NULL;
+  gboolean showarrow = FALSE;
+  gint tab_space, min, max, remaining_space;
+  gint expanded_tabs, operation;
+
+  if (!notebook->show_tabs || !notebook->children || !notebook->cur_page)
+    return;
+
+  min = max = tab_space = remaining_space = 0;
+  expanded_tabs = 1;
+
+  ggg_notebook_tab_space (notebook, &showarrow,
+			  &min, &max, &tab_space);
+
+  ggg_notebook_calculate_shown_tabs (notebook, showarrow,
+				     min, max, tab_space, &last_child,
+				     &expanded_tabs, &remaining_space);
+
+  children = notebook->first_tab;
+  ggg_notebook_calculate_tabs_allocation (notebook, &children, last_child,
+					  showarrow, STEP_NEXT,
+					  &remaining_space, &expanded_tabs, min, max);
+  if (children && children != last_child)
+    {
+      children = notebook->children;
+      ggg_notebook_calculate_tabs_allocation (notebook, &children, last_child,
+					      showarrow, STEP_PREV,
+					      &remaining_space, &expanded_tabs, min, max);
+    }
+
+  children = notebook->children;
+
+  while (children)
+    {
+      ggg_notebook_page_allocate (notebook, GGG_NOTEBOOK_PAGE (children));
+      children = children->next;
+    }
+
+  operation = GGG_NOTEBOOK_GET_PRIVATE (notebook)->operation;
+
+  if (!notebook->first_tab)
+    notebook->first_tab = notebook->children;
+
+  ggg_notebook_redraw_tabs (notebook);
+}
+
+static void
+ggg_notebook_page_allocate (GggNotebook     *notebook,
+			    GggNotebookPage *page)
+{
+  GtkWidget *widget = GTK_WIDGET (notebook);
+  GtkAllocation child_allocation;
+  GtkRequisition tab_requisition;
+  gint xthickness;
+  gint ythickness;
+  gint padding;
+  gint focus_width;
+  gint tab_curvature;
+  gint tab_pos = get_effective_tab_pos (notebook);
+
+  if (!page->tab_label)
+    return;
+
+  xthickness = widget->style->xthickness;
+  ythickness = widget->style->ythickness;
+
+  gtk_widget_get_child_requisition (page->tab_label, &tab_requisition);
+  gtk_widget_style_get (widget,
+			"focus-line-width", &focus_width,
+			"tab-curvature", &tab_curvature,
+			NULL);
+  switch (tab_pos)
+    {
+    case GTK_POS_TOP:
+    case GTK_POS_BOTTOM:
+      padding = tab_curvature + focus_width + notebook->tab_hborder;
+      if (page->fill)
+	{
+	  child_allocation.x = xthickness + focus_width + notebook->tab_hborder;
+	  child_allocation.width = MAX (1, page->allocation.width - 2 * child_allocation.x);
+	  child_allocation.x += page->allocation.x;
+	}
+      else
+	{
+	  child_allocation.x = page->allocation.x +
+	    (page->allocation.width - tab_requisition.width) / 2;
+
+	  child_allocation.width = tab_requisition.width;
+	}
+
+      child_allocation.y = notebook->tab_vborder + focus_width + page->allocation.y;
+
+      if (tab_pos == GTK_POS_TOP)
+	child_allocation.y += ythickness;
+
+      child_allocation.height = MAX (1, (page->allocation.height - ythickness -
+					 2 * (notebook->tab_vborder + focus_width)));
+      break;
+    case GTK_POS_LEFT:
+    case GTK_POS_RIGHT:
+      padding = tab_curvature + focus_width + notebook->tab_vborder;
+      if (page->fill)
+	{
+	  child_allocation.y = ythickness + padding;
+	  child_allocation.height = MAX (1, (page->allocation.height -
+					     2 * child_allocation.y));
+	  child_allocation.y += page->allocation.y;
+	}
+      else
+	{
+	  child_allocation.y = page->allocation.y +
+	    (page->allocation.height - tab_requisition.height) / 2;
+
+	  child_allocation.height = tab_requisition.height;
+	}
+
+      child_allocation.x = notebook->tab_hborder + focus_width + page->allocation.x;
+
+      if (tab_pos == GTK_POS_LEFT)
+	child_allocation.x += xthickness;
+
+      child_allocation.width = MAX (1, (page->allocation.width - xthickness -
+					2 * (notebook->tab_hborder + focus_width)));
+      break;
+    }
+
+  gtk_widget_size_allocate (page->tab_label, &child_allocation);
+}
+
+static void 
+ggg_notebook_calc_tabs (GggNotebook  *notebook,
+			GList        *start,
+                        GList       **end,
+			gint         *tab_space,
+                        guint         direction)
+{
+  GggNotebookPage *page = NULL;
+  GList *children;
+  GList *last_list = NULL;
+  GList *last_calculated_child = NULL;
+  gboolean pack;
+  gint tab_pos = get_effective_tab_pos (notebook);
+  guint real_direction;
+
+  if (!start)
+    return;
+
+  children = start;
+  pack = GGG_NOTEBOOK_PAGE (start)->pack;
+  if (pack == GTK_PACK_END)
+    real_direction = (direction == STEP_PREV) ? STEP_NEXT : STEP_PREV;
+  else
+    real_direction = direction;
+
+  while (1)
+    {
+      switch (tab_pos)
+	{
+	case GTK_POS_TOP:
+	case GTK_POS_BOTTOM:
+	  while (children)
+	    {
+	      page = children->data;
+	      if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) &&
+		  GTK_WIDGET_VISIBLE (page->child))
+		{
+		  if (page->pack == pack)
+		    {
+		      *tab_space -= page->requisition.width;
+		      if (*tab_space < 0 || children == *end)
+			{
+			  if (*tab_space < 0) 
+			    {
+			      *tab_space = - (*tab_space +
+					      page->requisition.width);
+
+			      if (*tab_space == 0 && direction == STEP_PREV)
+				children = last_calculated_child;
+
+			      *end = children;
+			    }
+			  return;
+			}
+
+		      last_calculated_child = children;
+		    }
+		  last_list = children;
+		}
+	      if (real_direction == STEP_NEXT)
+		children = children->next;
+	      else
+		children = children->prev;
+	    }
+	  break;
+	case GTK_POS_LEFT:
+	case GTK_POS_RIGHT:
+	  while (children)
+	    {
+	      page = children->data;
+	      if (NOTEBOOK_IS_TAB_LABEL_PARENT (notebook, page) &&
+		  GTK_WIDGET_VISIBLE (page->child))
+		{
+		  if (page->pack == pack)
+		    {
+		      *tab_space -= page->requisition.height;
+		      if (*tab_space < 0 || children == *end)
+			{
+			  if (*tab_space < 0)
+			    {
+			      *tab_space = - (*tab_space +
+					      page->requisition.height);
+
+			      if (*tab_space == 0 && direction == STEP_PREV)
+				children = last_calculated_child;
+
+			      *end = children;
+			    }
+			  return;
+			}
+
+		      last_calculated_child = children;
+		    }
+		  last_list = children;
+		}
+	      if (real_direction == STEP_NEXT)
+		children = children->next;
+	      else
+		children = children->prev;
+	    }
+	  break;
+	}
+      if (real_direction == STEP_PREV)
+	return;
+      pack = (pack == GTK_PACK_END) ? GTK_PACK_START : GTK_PACK_END;
+      real_direction = STEP_PREV;
+      children = last_list;
+    }
+}
+
+static void
+ggg_notebook_update_tab_states (GggNotebook *notebook)
+{
+  GList *list;
+
+  for (list = notebook->children; list != NULL; list = list->next)
+    {
+      GggNotebookPage *page = list->data;
+      
+      if (page->tab_label)
+	{
+	  if (page == notebook->cur_page)
+	    gtk_widget_set_state (page->tab_label, GTK_STATE_NORMAL);
+	  else
+	    gtk_widget_set_state (page->tab_label, GTK_STATE_ACTIVE);
+	}
+    }
+}
+
+/* Private GggNotebook Page Switch Methods:
+ *
+ * ggg_notebook_real_switch_page
+ */
+static void
+ggg_notebook_real_switch_page (GggNotebook     *notebook,
+			       GggNotebookPage *page,
+			       guint            page_num)
+{
+  if (notebook->cur_page == page || !GTK_WIDGET_VISIBLE (page->child))
+    return;
+
+  if (notebook->cur_page)
+    gtk_widget_set_child_visible (notebook->cur_page->child, FALSE);
+
+  notebook->cur_page = page;
+
+  if (!notebook->focus_tab ||
+      notebook->focus_tab->data != (gpointer) notebook->cur_page)
+    notebook->focus_tab = 
+      g_list_find (notebook->children, notebook->cur_page);
+
+  gtk_widget_set_child_visible (notebook->cur_page->child, TRUE);
+
+  /* If the focus was on the previous page, move it to the first
+   * element on the new page, if possible, or if not, to the
+   * notebook itself.
+   */
+  if (notebook->child_has_focus)
+    {
+      if (notebook->cur_page->last_focus_child &&
+	  gtk_widget_is_ancestor (notebook->cur_page->last_focus_child, notebook->cur_page->child))
+	gtk_widget_grab_focus (notebook->cur_page->last_focus_child);
+      else
+	if (!gtk_widget_child_focus (notebook->cur_page->child, GTK_DIR_TAB_FORWARD))
+	  gtk_widget_grab_focus (GTK_WIDGET (notebook));
+    }
+  
+  ggg_notebook_update_tab_states (notebook);
+  gtk_widget_queue_resize (GTK_WIDGET (notebook));
+  g_object_notify (G_OBJECT (notebook), "page");
+}
+
+/* Private GggNotebook Page Switch Functions:
+ *
+ * ggg_notebook_switch_page
+ * ggg_notebook_page_select
+ * ggg_notebook_switch_focus_tab
+ * ggg_notebook_menu_switch_page
+ */
+static void
+ggg_notebook_switch_page (GggNotebook     *notebook,
+			  GggNotebookPage *page)
+{ 
+  guint page_num;
+
+  if (notebook->cur_page == page)
+    return;
+
+  page_num = g_list_index (notebook->children, page);
+
+  g_signal_emit (notebook,
+		 notebook_signals[SWITCH_PAGE],
+		 0,
+		 page,
+		 page_num);
+}
+
+static gint
+ggg_notebook_page_select (GggNotebook *notebook,
+			  gboolean     move_focus)
+{
+  GggNotebookPage *page;
+  GtkDirectionType dir = GTK_DIR_DOWN; /* Quiet GCC */
+  gint tab_pos = get_effective_tab_pos (notebook);
+
+  if (!notebook->focus_tab)
+    return FALSE;
+
+  page = notebook->focus_tab->data;
+  ggg_notebook_switch_page (notebook, page);
+
+  if (move_focus)
+    {
+      switch (tab_pos)
+	{
+	case GTK_POS_TOP:
+	  dir = GTK_DIR_DOWN;
+	  break;
+	case GTK_POS_BOTTOM:
+	  dir = GTK_DIR_UP;
+	  break;
+	case GTK_POS_LEFT:
+	  dir = GTK_DIR_RIGHT;
+	  break;
+	case GTK_POS_RIGHT:
+	  dir = GTK_DIR_LEFT;
+	  break;
+	}
+
+      if (gtk_widget_child_focus (page->child, dir))
+        return TRUE;
+    }
+  return FALSE;
+}
+
+static void
+ggg_notebook_switch_focus_tab (GggNotebook *notebook, 
+			       GList       *new_child)
+{
+  GList *old_child;
+  GggNotebookPage *page;
+
+  if (notebook->focus_tab == new_child)
+    return;
+
+  old_child = notebook->focus_tab;
+  notebook->focus_tab = new_child;
+
+  if (notebook->scrollable)
+    ggg_notebook_redraw_arrows (notebook);
+
+  if (!notebook->show_tabs || !notebook->focus_tab)
+    return;
+
+  page = notebook->focus_tab->data;
+  if (GTK_WIDGET_MAPPED (page->tab_label))
+    ggg_notebook_redraw_tabs (notebook);
+  else
+    ggg_notebook_pages_allocate (notebook);
+
+  ggg_notebook_switch_page (notebook, page);
+}
+
+static void
+ggg_notebook_menu_switch_page (GtkWidget       *widget,
+			       GggNotebookPage *page)
+{
+  GggNotebook *notebook;
+  GList *children;
+  guint page_num;
+
+  notebook = GGG_NOTEBOOK (gtk_menu_get_attach_widget
+			   (GTK_MENU (widget->parent)));
+
+  if (notebook->cur_page == page)
+    return;
+
+  page_num = 0;
+  children = notebook->children;
+  while (children && children->data != page)
+    {
+      children = children->next;
+      page_num++;
+    }
+
+  g_signal_emit (notebook,
+		 notebook_signals[SWITCH_PAGE],
+		 0,
+		 page,
+		 page_num);
+}
+
+/* Private GggNotebook Menu Functions:
+ *
+ * ggg_notebook_menu_item_create
+ * ggg_notebook_menu_label_unparent
+ * ggg_notebook_menu_detacher
+ */
+static void
+ggg_notebook_menu_item_create (GggNotebook *notebook, 
+			       GList       *list)
+{	
+  GggNotebookPage *page;
+  GtkWidget *menu_item;
+
+  page = list->data;
+  if (page->default_menu)
+    {
+      if (page->tab_label && GTK_IS_LABEL (page->tab_label))
+	page->menu_label = gtk_label_new (GTK_LABEL (page->tab_label)->label);
+      else
+	page->menu_label = gtk_label_new ("");
+      gtk_misc_set_alignment (GTK_MISC (page->menu_label), 0.0, 0.5);
+    }
+
+  gtk_widget_show (page->menu_label);
+  menu_item = gtk_menu_item_new ();
+  gtk_container_add (GTK_CONTAINER (menu_item), page->menu_label);
+  gtk_menu_shell_insert (GTK_MENU_SHELL (notebook->menu), menu_item,
+			 ggg_notebook_real_page_position (notebook, list));
+  g_signal_connect (menu_item, "activate",
+		    G_CALLBACK (ggg_notebook_menu_switch_page), page);
+  if (GTK_WIDGET_VISIBLE (page->child))
+    gtk_widget_show (menu_item);
+}
+
+static void
+ggg_notebook_menu_label_unparent (GtkWidget *widget, 
+				  gpointer  data)
+{
+  gtk_widget_unparent (GTK_BIN (widget)->child);
+  GTK_BIN (widget)->child = NULL;
+}
+
+static void
+ggg_notebook_menu_detacher (GtkWidget *widget,
+			    GtkMenu   *menu)
+{
+  GggNotebook *notebook;
+
+  notebook = GGG_NOTEBOOK (widget);
+  g_return_if_fail (notebook->menu == (GtkWidget*) menu);
+
+  notebook->menu = NULL;
+}
+
+/* Private GggNotebook Setter Functions:
+ *
+ * ggg_notebook_set_homogeneous_tabs_internal
+ * ggg_notebook_set_tab_border_internal
+ * ggg_notebook_set_tab_hborder_internal
+ * ggg_notebook_set_tab_vborder_internal
+ */
+static void
+ggg_notebook_set_homogeneous_tabs_internal (GggNotebook *notebook,
+				            gboolean     homogeneous)
+{
+  if (homogeneous == notebook->homogeneous)
+    return;
+
+  notebook->homogeneous = homogeneous;
+  gtk_widget_queue_resize (GTK_WIDGET (notebook));
+
+  g_object_notify (G_OBJECT (notebook), "homogeneous");
+}
+
+static void
+ggg_notebook_set_tab_border_internal (GggNotebook *notebook,
+				      guint        border_width)
+{
+  notebook->tab_hborder = border_width;
+  notebook->tab_vborder = border_width;
+
+  if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs)
+    gtk_widget_queue_resize (GTK_WIDGET (notebook));
+
+  g_object_freeze_notify (G_OBJECT (notebook));
+  g_object_notify (G_OBJECT (notebook), "tab-hborder");
+  g_object_notify (G_OBJECT (notebook), "tab-vborder");
+  g_object_thaw_notify (G_OBJECT (notebook));
+}
+
+static void
+ggg_notebook_set_tab_hborder_internal (GggNotebook *notebook,
+				       guint        tab_hborder)
+{
+  if (notebook->tab_hborder == tab_hborder)
+    return;
+
+  notebook->tab_hborder = tab_hborder;
+
+  if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs)
+    gtk_widget_queue_resize (GTK_WIDGET (notebook));
+
+  g_object_notify (G_OBJECT (notebook), "tab-hborder");
+}
+
+static void
+ggg_notebook_set_tab_vborder_internal (GggNotebook *notebook,
+				       guint        tab_vborder)
+{
+  if (notebook->tab_vborder == tab_vborder)
+    return;
+
+  notebook->tab_vborder = tab_vborder;
+
+  if (GTK_WIDGET_VISIBLE (notebook) && notebook->show_tabs)
+    gtk_widget_queue_resize (GTK_WIDGET (notebook));
+
+  g_object_notify (G_OBJECT (notebook), "tab-vborder");
+}
+
+/* Public GggNotebook Page Insert/Remove Methods :
+ *
+ * ggg_notebook_append_page
+ * ggg_notebook_append_page_menu
+ * ggg_notebook_prepend_page
+ * ggg_notebook_prepend_page_menu
+ * ggg_notebook_insert_page
+ * ggg_notebook_insert_page_menu
+ * ggg_notebook_remove_page
+ */
+/**
+ * ggg_notebook_append_page:
+ * @notebook: a #GggNotebook
+ * @child: the #GtkWidget to use as the contents of the page.
+ * @tab_label: the #GtkWidget to be used as the label for the page,
+ *             or %NULL to use the default label, 'page N'.
+ * 
+ * Appends a page to @notebook.
+ *
+ * Return value: the index (starting from 0) of the appended
+ * page in the notebook, or -1 if function fails
+ **/
+gint
+ggg_notebook_append_page (GggNotebook *notebook,
+			  GtkWidget   *child,
+			  GtkWidget   *tab_label)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
+  g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
+  
+  return ggg_notebook_insert_page_menu (notebook, child, tab_label, NULL, -1);
+}
+
+/**
+ * ggg_notebook_append_page_menu:
+ * @notebook: a #GggNotebook
+ * @child: the #GtkWidget to use as the contents of the page.
+ * @tab_label: the #GtkWidget to be used as the label for the page,
+ *             or %NULL to use the default label, 'page N'.
+ * @menu_label: the widget to use as a label for the page-switch
+ *              menu, if that is enabled. If %NULL, and @tab_label
+ *              is a #GtkLabel or %NULL, then the menu label will be
+ *              a newly created label with the same text as @tab_label;
+ *              If @tab_label is not a #GtkLabel, @menu_label must be
+ *              specified if the page-switch menu is to be used.
+ * 
+ * Appends a page to @notebook, specifying the widget to use as the
+ * label in the popup menu.
+ *
+ * Return value: the index (starting from 0) of the appended
+ * page in the notebook, or -1 if function fails
+ **/
+gint
+ggg_notebook_append_page_menu (GggNotebook *notebook,
+			       GtkWidget   *child,
+			       GtkWidget   *tab_label,
+			       GtkWidget   *menu_label)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
+  g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
+  g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1);
+  
+  return ggg_notebook_insert_page_menu (notebook, child, tab_label, menu_label, -1);
+}
+
+/**
+ * ggg_notebook_prepend_page:
+ * @notebook: a #GggNotebook
+ * @child: the #GtkWidget to use as the contents of the page.
+ * @tab_label: the #GtkWidget to be used as the label for the page,
+ *             or %NULL to use the default label, 'page N'.
+ *
+ * Prepends a page to @notebook.
+ *
+ * Return value: the index (starting from 0) of the prepended
+ * page in the notebook, or -1 if function fails
+ **/
+gint
+ggg_notebook_prepend_page (GggNotebook *notebook,
+			   GtkWidget   *child,
+			   GtkWidget   *tab_label)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
+  g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
+  
+  return ggg_notebook_insert_page_menu (notebook, child, tab_label, NULL, 0);
+}
+
+/**
+ * ggg_notebook_prepend_page_menu:
+ * @notebook: a #GggNotebook
+ * @child: the #GtkWidget to use as the contents of the page.
+ * @tab_label: the #GtkWidget to be used as the label for the page,
+ *             or %NULL to use the default label, 'page N'.
+ * @menu_label: the widget to use as a label for the page-switch
+ *              menu, if that is enabled. If %NULL, and @tab_label
+ *              is a #GtkLabel or %NULL, then the menu label will be
+ *              a newly created label with the same text as @tab_label;
+ *              If @tab_label is not a #GtkLabel, @menu_label must be
+ *              specified if the page-switch menu is to be used.
+ * 
+ * Prepends a page to @notebook, specifying the widget to use as the
+ * label in the popup menu.
+ *
+ * Return value: the index (starting from 0) of the prepended
+ * page in the notebook, or -1 if function fails
+ **/
+gint
+ggg_notebook_prepend_page_menu (GggNotebook *notebook,
+				GtkWidget   *child,
+				GtkWidget   *tab_label,
+				GtkWidget   *menu_label)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
+  g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
+  g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1);
+  
+  return ggg_notebook_insert_page_menu (notebook, child, tab_label, menu_label, 0);
+}
+
+/**
+ * ggg_notebook_insert_page:
+ * @notebook: a #GggNotebook
+ * @child: the #GtkWidget to use as the contents of the page.
+ * @tab_label: the #GtkWidget to be used as the label for the page,
+ *             or %NULL to use the default label, 'page N'.
+ * @position: the index (starting at 0) at which to insert the page,
+ *            or -1 to append the page after all other pages.
+ * 
+ * Insert a page into @notebook at the given position.
+ *
+ * Return value: the index (starting from 0) of the inserted
+ * page in the notebook, or -1 if function fails
+ **/
+gint
+ggg_notebook_insert_page (GggNotebook *notebook,
+			  GtkWidget   *child,
+			  GtkWidget   *tab_label,
+			  gint         position)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
+  g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
+  
+  return ggg_notebook_insert_page_menu (notebook, child, tab_label, NULL, position);
+}
+
+
+static gint
+ggg_notebook_page_compare_tab (gconstpointer a,
+			       gconstpointer b)
+{
+  return (((GggNotebookPage *) a)->tab_label != b);
+}
+
+static gboolean
+ggg_notebook_mnemonic_activate_switch_page (GtkWidget *child,
+					    gboolean overload,
+					    gpointer data)
+{
+  GggNotebook *notebook = GGG_NOTEBOOK (data);
+  GList *list;
+  
+  list = g_list_find_custom (notebook->children, child,
+			     ggg_notebook_page_compare_tab);
+  if (list)
+    {
+      GggNotebookPage *page = list->data;
+
+      gtk_widget_grab_focus (GTK_WIDGET (notebook));	/* Do this first to avoid focusing new page */
+      ggg_notebook_switch_page (notebook, page);
+      focus_tabs_in (notebook);
+    }
+
+  return TRUE;
+}
+
+/**
+ * ggg_notebook_insert_page_menu:
+ * @notebook: a #GggNotebook
+ * @child: the #GtkWidget to use as the contents of the page.
+ * @tab_label: the #GtkWidget to be used as the label for the page,
+ *             or %NULL to use the default label, 'page N'.
+ * @menu_label: the widget to use as a label for the page-switch
+ *              menu, if that is enabled. If %NULL, and @tab_label
+ *              is a #GtkLabel or %NULL, then the menu label will be
+ *              a newly created label with the same text as @tab_label;
+ *              If @tab_label is not a #GtkLabel, @menu_label must be
+ *              specified if the page-switch menu is to be used.
+ * @position: the index (starting at 0) at which to insert the page,
+ *            or -1 to append the page after all other pages.
+ * 
+ * Insert a page into @notebook at the given position, specifying
+ * the widget to use as the label in the popup menu.
+ *
+ * Return value: the index (starting from 0) of the inserted
+ * page in the notebook
+ **/
+gint
+ggg_notebook_insert_page_menu (GggNotebook *notebook,
+			       GtkWidget   *child,
+			       GtkWidget   *tab_label,
+			       GtkWidget   *menu_label,
+			       gint         position)
+{
+  GggNotebookClass *class;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), -1);
+  g_return_val_if_fail (tab_label == NULL || GTK_IS_WIDGET (tab_label), -1);
+  g_return_val_if_fail (menu_label == NULL || GTK_IS_WIDGET (menu_label), -1);
+
+  class = GGG_NOTEBOOK_GET_CLASS (notebook);
+
+  return (class->insert_page) (notebook, child, tab_label, menu_label, position);
+}
+
+/**
+ * ggg_notebook_remove_page:
+ * @notebook: a #GggNotebook.
+ * @page_num: the index of a notebook page, starting
+ *            from 0. If -1, the last page will
+ *            be removed.
+ * 
+ * Removes a page from the notebook given its index
+ * in the notebook.
+ **/
+void
+ggg_notebook_remove_page (GggNotebook *notebook,
+			  gint         page_num)
+{
+  GList *list = NULL;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  if (page_num >= 0)
+    list = g_list_nth (notebook->children, page_num);
+  else
+    list = g_list_last (notebook->children);
+
+  if (list)
+    gtk_container_remove (GTK_CONTAINER (notebook),
+			  ((GggNotebookPage *) list->data)->child);
+}
+
+/* Public GggNotebook Page Switch Methods :
+ * ggg_notebook_get_current_page
+ * ggg_notebook_page_num
+ * ggg_notebook_set_current_page
+ * ggg_notebook_next_page
+ * ggg_notebook_prev_page
+ */
+/**
+ * ggg_notebook_get_current_page:
+ * @notebook: a #GggNotebook
+ * 
+ * Returns the page number of the current page.
+ * 
+ * Return value: the index (starting from 0) of the current
+ * page in the notebook. If the notebook has no pages, then
+ * -1 will be returned.
+ **/
+gint
+ggg_notebook_get_current_page (GggNotebook *notebook)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+
+  if (!notebook->cur_page)
+    return -1;
+
+  return g_list_index (notebook->children, notebook->cur_page);
+}
+
+/**
+ * ggg_notebook_get_nth_page:
+ * @notebook: a #GggNotebook
+ * @page_num: the index of a page in the notebook, or -1
+ *            to get the last page.
+ * 
+ * Returns the child widget contained in page number @page_num.
+ * 
+ * Return value: the child widget, or %NULL if @page_num is
+ * out of bounds.
+ **/
+GtkWidget*
+ggg_notebook_get_nth_page (GggNotebook *notebook,
+			   gint         page_num)
+{
+  GggNotebookPage *page;
+  GList *list;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), NULL);
+
+  if (page_num >= 0)
+    list = g_list_nth (notebook->children, page_num);
+  else
+    list = g_list_last (notebook->children);
+
+  if (list)
+    {
+      page = list->data;
+      return page->child;
+    }
+
+  return NULL;
+}
+
+/**
+ * ggg_notebook_get_n_pages:
+ * @notebook: a #GggNotebook
+ * 
+ * Gets the number of pages in a notebook.
+ * 
+ * Return value: the number of pages in the notebook.
+ *
+ * Since: 2.2
+ **/
+gint
+ggg_notebook_get_n_pages (GggNotebook *notebook)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), 0);
+
+  return g_list_length (notebook->children);
+}
+
+/**
+ * ggg_notebook_page_num:
+ * @notebook: a #GggNotebook
+ * @child: a #GtkWidget
+ * 
+ * Finds the index of the page which contains the given child
+ * widget.
+ * 
+ * Return value: the index of the page containing @child, or
+ *   -1 if @child is not in the notebook.
+ **/
+gint
+ggg_notebook_page_num (GggNotebook      *notebook,
+		       GtkWidget        *child)
+{
+  GList *children;
+  gint num;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+
+  num = 0;
+  children = notebook->children;
+  while (children)
+    {
+      GggNotebookPage *page =  children->data;
+      
+      if (page->child == child)
+	return num;
+
+      children = children->next;
+      num++;
+    }
+
+  return -1;
+}
+
+/**
+ * ggg_notebook_set_current_page:
+ * @notebook: a #GggNotebook
+ * @page_num: index of the page to switch to, starting from 0.
+ *            If negative, the last page will be used. If greater
+ *            than the number of pages in the notebook, nothing
+ *            will be done.
+ *                
+ * Switches to the page number @page_num. 
+ *
+ * Note that due to historical reasons, GggNotebook refuses
+ * to switch to a page unless the child widget is visible. 
+ * Therefore, it is recommended to show child widgets before
+ * adding them to a notebook. 
+ */
+void
+ggg_notebook_set_current_page (GggNotebook *notebook,
+			       gint         page_num)
+{
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  if (page_num < 0)
+    page_num = g_list_length (notebook->children) - 1;
+
+  list = g_list_nth (notebook->children, page_num);
+  if (list)
+    ggg_notebook_switch_page (notebook, GGG_NOTEBOOK_PAGE (list));
+}
+
+/**
+ * ggg_notebook_next_page:
+ * @notebook: a #GggNotebook
+ * 
+ * Switches to the next page. Nothing happens if the current page is
+ * the last page.
+ **/
+void
+ggg_notebook_next_page (GggNotebook *notebook)
+{
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  list = g_list_find (notebook->children, notebook->cur_page);
+  if (!list)
+    return;
+
+  list = ggg_notebook_search_page (notebook, list, STEP_NEXT, TRUE);
+  if (!list)
+    return;
+
+  ggg_notebook_switch_page (notebook, GGG_NOTEBOOK_PAGE (list));
+}
+
+/**
+ * ggg_notebook_prev_page:
+ * @notebook: a #GggNotebook
+ * 
+ * Switches to the previous page. Nothing happens if the current page
+ * is the first page.
+ **/
+void
+ggg_notebook_prev_page (GggNotebook *notebook)
+{
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  list = g_list_find (notebook->children, notebook->cur_page);
+  if (!list)
+    return;
+
+  list = ggg_notebook_search_page (notebook, list, STEP_PREV, TRUE);
+  if (!list)
+    return;
+
+  ggg_notebook_switch_page (notebook, GGG_NOTEBOOK_PAGE (list));
+}
+
+/* Public GggNotebook/Tab Style Functions
+ *
+ * ggg_notebook_set_show_border
+ * ggg_notebook_set_show_tabs
+ * ggg_notebook_set_tab_pos
+ * ggg_notebook_set_homogeneous_tabs
+ * ggg_notebook_set_tab_border
+ * ggg_notebook_set_tab_hborder
+ * ggg_notebook_set_tab_vborder
+ * ggg_notebook_set_scrollable
+ */
+/**
+ * ggg_notebook_set_show_border:
+ * @notebook: a #GggNotebook
+ * @show_border: %TRUE if a bevel should be drawn around the notebook.
+ * 
+ * Sets whether a bevel will be drawn around the notebook pages.
+ * This only has a visual effect when the tabs are not shown.
+ * See ggg_notebook_set_show_tabs().
+ **/
+void
+ggg_notebook_set_show_border (GggNotebook *notebook,
+			      gboolean     show_border)
+{
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  if (notebook->show_border != show_border)
+    {
+      notebook->show_border = show_border;
+
+      if (GTK_WIDGET_VISIBLE (notebook))
+	gtk_widget_queue_resize (GTK_WIDGET (notebook));
+      
+      g_object_notify (G_OBJECT (notebook), "show-border");
+    }
+}
+
+/**
+ * ggg_notebook_get_show_border:
+ * @notebook: a #GggNotebook
+ *
+ * Returns whether a bevel will be drawn around the notebook pages. See
+ * ggg_notebook_set_show_border().
+ *
+ * Return value: %TRUE if the bevel is drawn
+ **/
+gboolean
+ggg_notebook_get_show_border (GggNotebook *notebook)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), FALSE);
+
+  return notebook->show_border;
+}
+
+/**
+ * ggg_notebook_set_show_tabs:
+ * @notebook: a #GggNotebook
+ * @show_tabs: %TRUE if the tabs should be shown.
+ * 
+ * Sets whether to show the tabs for the notebook or not.
+ **/
+void
+ggg_notebook_set_show_tabs (GggNotebook *notebook,
+			    gboolean     show_tabs)
+{
+  GggNotebookPage *page;
+  GList *children;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  show_tabs = show_tabs != FALSE;
+
+  if (notebook->show_tabs == show_tabs)
+    return;
+
+  notebook->show_tabs = show_tabs;
+  children = notebook->children;
+
+  if (!show_tabs)
+    {
+      GTK_WIDGET_UNSET_FLAGS (notebook, GTK_CAN_FOCUS);
+      
+      while (children)
+	{
+	  page = children->data;
+	  children = children->next;
+	  if (page->default_tab)
+	    {
+	      gtk_widget_destroy (page->tab_label);
+	      page->tab_label = NULL;
+	    }
+	  else
+	    gtk_widget_hide (page->tab_label);
+	}
+    }
+  else
+    {
+      GTK_WIDGET_SET_FLAGS (notebook, GTK_CAN_FOCUS);
+      ggg_notebook_update_labels (notebook);
+    }
+  gtk_widget_queue_resize (GTK_WIDGET (notebook));
+
+  g_object_notify (G_OBJECT (notebook), "show-tabs");
+}
+
+/**
+ * ggg_notebook_get_show_tabs:
+ * @notebook: a #GggNotebook
+ *
+ * Returns whether the tabs of the notebook are shown. See
+ * ggg_notebook_set_show_tabs().
+ *
+ * Return value: %TRUE if the tabs are shown
+ **/
+gboolean
+ggg_notebook_get_show_tabs (GggNotebook *notebook)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), FALSE);
+
+  return notebook->show_tabs;
+}
+
+/**
+ * ggg_notebook_set_tab_pos:
+ * @notebook: a #GggNotebook.
+ * @pos: the edge to draw the tabs at.
+ * 
+ * Sets the edge at which the tabs for switching pages in the
+ * notebook are drawn.
+ **/
+void
+ggg_notebook_set_tab_pos (GggNotebook     *notebook,
+			  GtkPositionType  pos)
+{
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  if (notebook->tab_pos != pos)
+    {
+      notebook->tab_pos = pos;
+      if (GTK_WIDGET_VISIBLE (notebook))
+	gtk_widget_queue_resize (GTK_WIDGET (notebook));
+    }
+
+  g_object_notify (G_OBJECT (notebook), "tab-pos");
+}
+
+/**
+ * ggg_notebook_get_tab_pos:
+ * @notebook: a #GggNotebook
+ *
+ * Gets the edge at which the tabs for switching pages in the
+ * notebook are drawn.
+ *
+ * Return value: the edge at which the tabs are drawn
+ **/
+GtkPositionType
+ggg_notebook_get_tab_pos (GggNotebook *notebook)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), GTK_POS_TOP);
+
+  return notebook->tab_pos;
+}
+
+/**
+ * ggg_notebook_set_homogeneous_tabs:
+ * @notebook: a #GggNotebook
+ * @homogeneous: %TRUE if all tabs should be the same size.
+ * 
+ * Sets whether the tabs must have all the same size or not.
+ **/
+void
+ggg_notebook_set_homogeneous_tabs (GggNotebook *notebook,
+				   gboolean     homogeneous)
+{
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  ggg_notebook_set_homogeneous_tabs_internal (notebook, homogeneous);
+}
+
+/**
+ * ggg_notebook_set_tab_border:
+ * @notebook: a #GggNotebook
+ * @border_width: width of the border around the tab labels.
+ * 
+ * Sets the width the border around the tab labels
+ * in a notebook. This is equivalent to calling
+ * ggg_notebook_set_tab_hborder (@notebook, @border_width) followed
+ * by ggg_notebook_set_tab_vborder (@notebook, @border_width).
+ **/
+void
+ggg_notebook_set_tab_border (GggNotebook *notebook,
+			     guint        border_width)
+{
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  ggg_notebook_set_tab_border_internal (notebook, border_width);
+}
+
+/**
+ * ggg_notebook_set_tab_hborder:
+ * @notebook: a #GggNotebook
+ * @tab_hborder: width of the horizontal border of tab labels.
+ * 
+ * Sets the width of the horizontal border of tab labels.
+ **/
+void
+ggg_notebook_set_tab_hborder (GggNotebook *notebook,
+			      guint        tab_hborder)
+{
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  ggg_notebook_set_tab_hborder_internal (notebook, tab_hborder);
+}
+
+/**
+ * ggg_notebook_set_tab_vborder:
+ * @notebook: a #GggNotebook
+ * @tab_vborder: width of the vertical border of tab labels.
+ * 
+ * Sets the width of the vertical border of tab labels.
+ **/
+void
+ggg_notebook_set_tab_vborder (GggNotebook *notebook,
+			      guint        tab_vborder)
+{
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  ggg_notebook_set_tab_vborder_internal (notebook, tab_vborder);
+}
+
+/**
+ * ggg_notebook_set_scrollable:
+ * @notebook: a #GggNotebook
+ * @scrollable: %TRUE if scroll arrows should be added
+ * 
+ * Sets whether the tab label area will have arrows for scrolling if
+ * there are too many tabs to fit in the area.
+ **/
+void
+ggg_notebook_set_scrollable (GggNotebook *notebook,
+			     gboolean     scrollable)
+{
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  scrollable = (scrollable != FALSE);
+
+  if (scrollable != notebook->scrollable)
+    {
+      notebook->scrollable = scrollable;
+
+      if (GTK_WIDGET_VISIBLE (notebook))
+	gtk_widget_queue_resize (GTK_WIDGET (notebook));
+
+      g_object_notify (G_OBJECT (notebook), "scrollable");
+    }
+}
+
+/**
+ * ggg_notebook_get_scrollable:
+ * @notebook: a #GggNotebook
+ *
+ * Returns whether the tab label area has arrows for scrolling. See
+ * ggg_notebook_set_scrollable().
+ *
+ * Return value: %TRUE if arrows for scrolling are present
+ **/
+gboolean
+ggg_notebook_get_scrollable (GggNotebook *notebook)
+{
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), FALSE);
+
+  return notebook->scrollable;
+}
+
+/* Public GggNotebook Popup Menu Methods:
+ *
+ * ggg_notebook_popup_enable
+ * ggg_notebook_popup_disable
+ */
+
+
+/**
+ * ggg_notebook_popup_enable:
+ * @notebook: a #GggNotebook
+ * 
+ * Enables the popup menu: if the user clicks with the right mouse button on
+ * the bookmarks, a menu with all the pages will be popped up.
+ **/
+void
+ggg_notebook_popup_enable (GggNotebook *notebook)
+{
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  if (notebook->menu)
+    return;
+
+  notebook->menu = gtk_menu_new ();
+  for (list = ggg_notebook_search_page (notebook, NULL, STEP_NEXT, FALSE);
+       list;
+       list = ggg_notebook_search_page (notebook, list, STEP_NEXT, FALSE))
+    ggg_notebook_menu_item_create (notebook, list);
+
+  ggg_notebook_update_labels (notebook);
+  gtk_menu_attach_to_widget (GTK_MENU (notebook->menu),
+			     GTK_WIDGET (notebook),
+			     ggg_notebook_menu_detacher);
+
+  g_object_notify (G_OBJECT (notebook), "enable-popup");
+}
+
+/**
+ * ggg_notebook_popup_disable:
+ * @notebook: a #GggNotebook
+ * 
+ * Disables the popup menu.
+ **/
+void       
+ggg_notebook_popup_disable  (GggNotebook *notebook)
+{
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  if (!notebook->menu)
+    return;
+
+  gtk_container_foreach (GTK_CONTAINER (notebook->menu),
+			 (GtkCallback) ggg_notebook_menu_label_unparent, NULL);
+  gtk_widget_destroy (notebook->menu);
+
+  g_object_notify (G_OBJECT (notebook), "enable-popup");
+}
+
+/* Public GggNotebook Page Properties Functions:
+ *
+ * ggg_notebook_get_tab_label
+ * ggg_notebook_set_tab_label
+ * ggg_notebook_set_tab_label_text
+ * ggg_notebook_get_menu_label
+ * ggg_notebook_set_menu_label
+ * ggg_notebook_set_menu_label_text
+ * ggg_notebook_set_tab_label_packing
+ * ggg_notebook_query_tab_label_packing
+ * ggg_notebook_get_tab_reorderable
+ * ggg_notebook_set_tab_reorderable
+ * ggg_notebook_get_tab_detachable
+ * ggg_notebook_set_tab_detachable
+ */
+
+/**
+ * ggg_notebook_get_tab_label:
+ * @notebook: a #GggNotebook
+ * @child: the page
+ * 
+ * Returns the tab label widget for the page @child. %NULL is returned
+ * if @child is not in @notebook or if no tab label has specifically
+ * been set for @child.
+ * 
+ * Return value: the tab label
+ **/
+GtkWidget *
+ggg_notebook_get_tab_label (GggNotebook *notebook,
+			    GtkWidget   *child)
+{
+  GList *list;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), NULL);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return NULL;
+
+  if (GGG_NOTEBOOK_PAGE (list)->default_tab)
+    return NULL;
+
+  return GGG_NOTEBOOK_PAGE (list)->tab_label;
+}  
+
+/**
+ * ggg_notebook_set_tab_label:
+ * @notebook: a #GggNotebook
+ * @child: the page
+ * @tab_label: the tab label widget to use, or %NULL for default tab
+ *             label.
+ * 
+ * Changes the tab label for @child. If %NULL is specified
+ * for @tab_label, then the page will have the label 'page N'.
+ **/
+void
+ggg_notebook_set_tab_label (GggNotebook *notebook,
+			    GtkWidget   *child,
+			    GtkWidget   *tab_label)
+{
+  GggNotebookPage *page;
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+  g_return_if_fail (GTK_IS_WIDGET (child));
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return;
+
+  /* a NULL pointer indicates a default_tab setting, otherwise
+   * we need to set the associated label
+   */
+  page = list->data;
+  
+  if (page->tab_label == tab_label)
+    return;
+  
+
+  ggg_notebook_remove_tab_label (notebook, page);
+  
+  if (tab_label)
+    {
+      page->default_tab = FALSE;
+      page->tab_label = tab_label;
+      gtk_widget_set_parent (page->tab_label, GTK_WIDGET (notebook));
+    }
+  else
+    {
+      page->default_tab = TRUE;
+      page->tab_label = NULL;
+
+      if (notebook->show_tabs)
+	{
+	  gchar string[32];
+
+	  g_snprintf (string, sizeof(string), _("Page %u"), 
+		      ggg_notebook_real_page_position (notebook, list));
+	  page->tab_label = gtk_label_new (string);
+	  gtk_widget_set_parent (page->tab_label, GTK_WIDGET (notebook));
+	}
+    }
+
+  if (page->tab_label)
+    page->mnemonic_activate_signal =
+      g_signal_connect (page->tab_label,
+			"mnemonic_activate",
+			G_CALLBACK (ggg_notebook_mnemonic_activate_switch_page),
+			notebook);
+
+  if (notebook->show_tabs && GTK_WIDGET_VISIBLE (child))
+    {
+      gtk_widget_show (page->tab_label);
+      gtk_widget_queue_resize (GTK_WIDGET (notebook));
+    }
+
+  ggg_notebook_update_tab_states (notebook);
+  gtk_widget_child_notify (child, "tab-label");
+}
+
+/**
+ * ggg_notebook_set_tab_label_text:
+ * @notebook: a #GggNotebook
+ * @child: the page
+ * @tab_text: the label text
+ * 
+ * Creates a new label and sets it as the tab label for the page
+ * containing @child.
+ **/
+void
+ggg_notebook_set_tab_label_text (GggNotebook *notebook,
+				 GtkWidget   *child,
+				 const gchar *tab_text)
+{
+  GtkWidget *tab_label = NULL;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  if (tab_text)
+    tab_label = gtk_label_new (tab_text);
+  ggg_notebook_set_tab_label (notebook, child, tab_label);
+  gtk_widget_child_notify (child, "tab-label");
+}
+
+/**
+ * ggg_notebook_get_tab_label_text:
+ * @notebook: a #GggNotebook
+ * @child: a widget contained in a page of @notebook
+ *
+ * Retrieves the text of the tab label for the page containing
+ *    @child.
+ *
+ * Return value: the text of the tab label, or %NULL if the
+ *               tab label widget is not a #GtkLabel. The
+ *               string is owned by the widget and must not
+ *               be freed.
+ **/
+G_CONST_RETURN gchar *
+ggg_notebook_get_tab_label_text (GggNotebook *notebook,
+				 GtkWidget   *child)
+{
+  GtkWidget *tab_label;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), NULL);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
+
+  tab_label = ggg_notebook_get_tab_label (notebook, child);
+
+  if (tab_label && GTK_IS_LABEL (tab_label))
+    return gtk_label_get_text (GTK_LABEL (tab_label));
+  else
+    return NULL;
+}
+
+/**
+ * ggg_notebook_get_menu_label:
+ * @notebook: a #GggNotebook
+ * @child: a widget contained in a page of @notebook
+ * 
+ * Retrieves the menu label widget of the page containing @child.
+ * 
+ * Return value: the menu label, or %NULL if the
+ *               notebook page does not have a menu label other
+ *               than the default (the tab label).
+ **/
+GtkWidget*
+ggg_notebook_get_menu_label (GggNotebook *notebook,
+			     GtkWidget   *child)
+{
+  GList *list;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), NULL);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return NULL;
+
+  if (GGG_NOTEBOOK_PAGE (list)->default_menu)
+    return NULL;
+
+  return GGG_NOTEBOOK_PAGE (list)->menu_label;
+}  
+
+/**
+ * ggg_notebook_set_menu_label:
+ * @notebook: a #GggNotebook
+ * @child: the child widget
+ * @menu_label: the menu label, or NULL for default
+ * 
+ * Changes the menu label for the page containing @child. 
+ **/
+void
+ggg_notebook_set_menu_label (GggNotebook *notebook,
+			     GtkWidget   *child,
+			     GtkWidget   *menu_label)
+{
+  GggNotebookPage *page;
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+  g_return_if_fail (GTK_IS_WIDGET (child));
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return;
+
+  page = list->data;
+  if (page->menu_label)
+    {
+      if (notebook->menu)
+	gtk_container_remove (GTK_CONTAINER (notebook->menu), 
+			      page->menu_label->parent);
+
+      if (!page->default_menu)
+	g_object_unref (page->menu_label);
+    }
+
+  if (menu_label)
+    {
+      page->menu_label = menu_label;
+      g_object_ref_sink (page->menu_label);
+      page->default_menu = FALSE;
+    }
+  else
+    page->default_menu = TRUE;
+
+  if (notebook->menu)
+    ggg_notebook_menu_item_create (notebook, list);
+  gtk_widget_child_notify (child, "menu-label");
+}
+
+/**
+ * ggg_notebook_set_menu_label_text:
+ * @notebook: a #GggNotebook
+ * @child: the child widget
+ * @menu_text: the label text
+ * 
+ * Creates a new label and sets it as the menu label of @child.
+ **/
+void
+ggg_notebook_set_menu_label_text (GggNotebook *notebook,
+				  GtkWidget   *child,
+				  const gchar *menu_text)
+{
+  GtkWidget *menu_label = NULL;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  if (menu_text)
+    {
+      menu_label = gtk_label_new (menu_text);
+      gtk_misc_set_alignment (GTK_MISC (menu_label), 0.0, 0.5);
+    }
+  ggg_notebook_set_menu_label (notebook, child, menu_label);
+  gtk_widget_child_notify (child, "menu-label");
+}
+
+/**
+ * ggg_notebook_get_menu_label_text:
+ * @notebook: a #GggNotebook
+ * @child: the child widget of a page of the notebook.
+ *
+ * Retrieves the text of the menu label for the page containing
+ *    @child.
+ *
+ * Return value: the text of the tab label, or %NULL if the
+ *               widget does not have a menu label other than
+ *               the default menu label, or the menu label widget
+ *               is not a #GtkLabel. The string is owned by
+ *               the widget and must not be freed.
+ **/
+G_CONST_RETURN gchar *
+ggg_notebook_get_menu_label_text (GggNotebook *notebook,
+				  GtkWidget *child)
+{
+  GtkWidget *menu_label;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), NULL);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), NULL);
+ 
+  menu_label = ggg_notebook_get_menu_label (notebook, child);
+
+  if (menu_label && GTK_IS_LABEL (menu_label))
+    return gtk_label_get_text (GTK_LABEL (menu_label));
+  else
+    return NULL;
+}
+  
+/* Helper function called when pages are reordered
+ */
+static void
+ggg_notebook_child_reordered (GggNotebook     *notebook,
+			      GggNotebookPage *page)
+{
+  if (notebook->menu)
+    {
+      GtkWidget *menu_item;
+      
+      menu_item = page->menu_label->parent;
+      gtk_container_remove (GTK_CONTAINER (menu_item), page->menu_label);
+      gtk_container_remove (GTK_CONTAINER (notebook->menu), menu_item);
+      ggg_notebook_menu_item_create (notebook, g_list_find (notebook->children, page));
+    }
+
+  ggg_notebook_update_tab_states (notebook);
+  ggg_notebook_update_labels (notebook);
+}
+
+/**
+ * ggg_notebook_set_tab_label_packing:
+ * @notebook: a #GggNotebook
+ * @child: the child widget
+ * @expand: whether to expand the bookmark or not
+ * @fill: whether the bookmark should fill the allocated area or not
+ * @pack_type: the position of the bookmark
+ * 
+ * Sets the packing parameters for the tab label of the page
+ * containing @child. See gtk_box_pack_start() for the exact meaning
+ * of the parameters.
+ **/
+void
+ggg_notebook_set_tab_label_packing (GggNotebook *notebook,
+				    GtkWidget   *child,
+				    gboolean     expand,
+				    gboolean     fill,
+				    GtkPackType  pack_type)
+{
+  GggNotebookPage *page;
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+  g_return_if_fail (GTK_IS_WIDGET (child));
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return;
+
+  page = list->data;
+  expand = expand != FALSE;
+  fill = fill != FALSE;
+  if (page->pack == pack_type && page->expand == expand && page->fill == fill)
+    return;
+
+  gtk_widget_freeze_child_notify (child);
+  page->expand = expand;
+  gtk_widget_child_notify (child, "tab-expand");
+  page->fill = fill;
+  gtk_widget_child_notify (child, "tab-fill");
+  if (page->pack != pack_type)
+    {
+      page->pack = pack_type;
+      ggg_notebook_child_reordered (notebook, page);
+    }
+  gtk_widget_child_notify (child, "tab-pack");
+  gtk_widget_child_notify (child, "position");
+  if (notebook->show_tabs)
+    ggg_notebook_pages_allocate (notebook);
+  gtk_widget_thaw_child_notify (child);
+}  
+
+/**
+ * ggg_notebook_query_tab_label_packing:
+ * @notebook: a #GggNotebook
+ * @child: the page
+ * @expand: location to store the expand value (or NULL)
+ * @fill: location to store the fill value (or NULL)
+ * @pack_type: location to store the pack_type (or NULL)
+ * 
+ * Query the packing attributes for the tab label of the page
+ * containing @child.
+ **/
+void
+ggg_notebook_query_tab_label_packing (GggNotebook *notebook,
+				      GtkWidget   *child,
+				      gboolean    *expand,
+				      gboolean    *fill,
+				      GtkPackType *pack_type)
+{
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+  g_return_if_fail (GTK_IS_WIDGET (child));
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)
+    return;
+
+  if (expand)
+    *expand = GGG_NOTEBOOK_PAGE (list)->expand;
+  if (fill)
+    *fill = GGG_NOTEBOOK_PAGE (list)->fill;
+  if (pack_type)
+    *pack_type = GGG_NOTEBOOK_PAGE (list)->pack;
+}
+
+/**
+ * ggg_notebook_reorder_child:
+ * @notebook: a #GggNotebook
+ * @child: the child to move
+ * @position: the new position, or -1 to move to the end
+ * 
+ * Reorders the page containing @child, so that it appears in position
+ * @position. If @position is greater than or equal to the number of
+ * children in the list or negative, @child will be moved to the end
+ * of the list.
+ **/
+void
+ggg_notebook_reorder_child (GggNotebook *notebook,
+			    GtkWidget   *child,
+			    gint         position)
+{
+  GList *list, *new_list;
+  GggNotebookPage *page;
+  gint old_pos;
+  gint max_pos;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+  g_return_if_fail (GTK_IS_WIDGET (child));
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)
+    return;
+
+  max_pos = g_list_length (notebook->children) - 1;
+  if (position < 0 || position > max_pos)
+    position = max_pos;
+
+  old_pos = g_list_position (notebook->children, list);
+
+  if (old_pos == position)
+    return;
+
+  page = list->data;
+  notebook->children = g_list_delete_link (notebook->children, list);
+
+  notebook->children = g_list_insert (notebook->children, page, position);
+  new_list = g_list_nth (notebook->children, position);
+
+  /* Fix up GList references in GggNotebook structure */
+  if (notebook->first_tab == list)
+    notebook->first_tab = new_list;
+  if (notebook->focus_tab == list)
+    notebook->focus_tab = new_list;
+
+  gtk_widget_freeze_child_notify (child);
+
+  /* Move around the menu items if necessary */
+  ggg_notebook_child_reordered (notebook, page);
+  gtk_widget_child_notify (child, "tab-pack");
+  gtk_widget_child_notify (child, "position");
+
+  if (notebook->show_tabs)
+    ggg_notebook_pages_allocate (notebook);
+
+  gtk_widget_thaw_child_notify (child);
+
+  g_signal_emit (notebook,
+		 notebook_signals[PAGE_REORDERED],
+		 0,
+		 child,
+		 position);
+}
+
+/**
+ * ggg_notebook_set_window_creation_hook:
+ * @func: the #GggNotebookWindowCreationFunc, or %NULL
+ * @data: user data for @func
+ * @destroy: Destroy notifier for @data, or %NULL
+ *
+ * Installs a global function used to create a window
+ * when a detached tab is dropped in an empty area.
+ * 
+ * Since: 2.10
+ **/
+void
+ggg_notebook_set_window_creation_hook (GggNotebookWindowCreationFunc  func,
+				       gpointer                       data,
+                                       GDestroyNotify                 destroy)
+{
+  if (window_creation_hook_destroy)
+    window_creation_hook_destroy (window_creation_hook_data);
+
+  window_creation_hook = func;
+  window_creation_hook_data = data;
+  window_creation_hook_destroy = destroy;
+}
+
+/**
+ * ggg_notebook_set_group_id:
+ * @notebook: a #GggNotebook
+ * @group_id: a group identificator, or -1 to unset it
+ *
+ * Sets an group identificator for @notebook, notebooks sharing
+ * the same group identificator will be able to exchange tabs
+ * via drag and drop. A notebook with group identificator -1 will
+ * not be able to exchange tabs with any other notebook.
+ * 
+ * Since: 2.10
+ * Deprecated:2.12: use ggg_notebook_set_group() instead.
+ */
+void
+ggg_notebook_set_group_id (GggNotebook *notebook,
+			   gint         group_id)
+{
+  gpointer group;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  /* add 1 to get rid of the -1/NULL difference */
+  group = GINT_TO_POINTER (group_id + 1);
+  ggg_notebook_set_group (notebook, group);
+}
+
+/**
+ * ggg_notebook_set_group:
+ * @notebook: a #GggNotebook
+ * @group: a pointer to identify the notebook group, or %NULL to unset it
+ *
+ * Sets a group identificator pointer for @notebook, notebooks sharing
+ * the same group identificator pointer will be able to exchange tabs
+ * via drag and drop. A notebook with a %NULL group identificator will
+ * not be able to exchange tabs with any other notebook.
+ * 
+ * Since: 2.12
+ */
+void
+ggg_notebook_set_group (GggNotebook *notebook,
+			gpointer     group)
+{
+  GggNotebookPrivate *priv;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+  if (priv->group != group)
+    {
+      priv->group = group;
+      g_object_notify (G_OBJECT (notebook), "group-id");
+      g_object_notify (G_OBJECT (notebook), "group");
+    }
+}
+
+/**
+ * ggg_notebook_get_group_id:
+ * @notebook: a #GggNotebook
+ * 
+ * Gets the current group identificator for @notebook.
+ * 
+ * Return Value: the group identificator, or -1 if none is set.
+ *
+ * Since: 2.10
+ * Deprecated:2.12: use ggg_notebook_get_group() instead.
+ */
+gint
+ggg_notebook_get_group_id (GggNotebook *notebook)
+{
+  GggNotebookPrivate *priv;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), -1);
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+
+  /* substract 1 to get rid of the -1/NULL difference */
+  return GPOINTER_TO_INT (priv->group) - 1;
+}
+
+/**
+ * ggg_notebook_get_group:
+ * @notebook: a #GggNotebook
+ * 
+ * Gets the current group identificator pointer for @notebook.
+ * 
+ * Return Value: the group identificator, or %NULL if none is set.
+ *
+ * Since: 2.12
+ **/
+gpointer
+ggg_notebook_get_group (GggNotebook *notebook)
+{
+  GggNotebookPrivate *priv;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), NULL);
+
+  priv = GGG_NOTEBOOK_GET_PRIVATE (notebook);
+  return priv->group;
+}
+
+/**
+ * ggg_notebook_get_tab_reorderable:
+ * @notebook: a #GggNotebook
+ * @child: a child #GtkWidget
+ * 
+ * Gets whether the tab can be reordered via drag and drop or not.
+ * 
+ * Return Value: %TRUE if the tab is reorderable.
+ * 
+ * Since: 2.10
+ **/
+gboolean
+ggg_notebook_get_tab_reorderable (GggNotebook *notebook,
+				  GtkWidget   *child)
+{
+  GList *list;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), FALSE);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE);
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return FALSE;
+
+  return GGG_NOTEBOOK_PAGE (list)->reorderable;
+}
+
+/**
+ * ggg_notebook_set_tab_reorderable:
+ * @notebook: a #GggNotebook
+ * @child: a child #GtkWidget
+ * @reorderable: whether the tab is reorderable or not.
+ *
+ * Sets whether the notebook tab can be reordered
+ * via drag and drop or not.
+ * 
+ * Since: 2.10
+ **/
+void
+ggg_notebook_set_tab_reorderable (GggNotebook *notebook,
+				  GtkWidget   *child,
+				  gboolean     reorderable)
+{
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+  g_return_if_fail (GTK_IS_WIDGET (child));
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return;
+
+  if (GGG_NOTEBOOK_PAGE (list)->reorderable != reorderable)
+    {
+      GGG_NOTEBOOK_PAGE (list)->reorderable = (reorderable == TRUE);
+      gtk_widget_child_notify (child, "reorderable");
+    }
+}
+
+/**
+ * ggg_notebook_get_tab_detachable:
+ * @notebook: a #GggNotebook
+ * @child: a child #GtkWidget
+ * 
+ * Returns whether the tab contents can be detached from @notebook.
+ * 
+ * Return Value: TRUE if the tab is detachable.
+ *
+ * Since: 2.10
+ **/
+gboolean
+ggg_notebook_get_tab_detachable (GggNotebook *notebook,
+				 GtkWidget   *child)
+{
+  GList *list;
+
+  g_return_val_if_fail (GGG_IS_NOTEBOOK (notebook), FALSE);
+  g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE);
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return FALSE;
+
+  return GGG_NOTEBOOK_PAGE (list)->detachable;
+}
+
+/**
+ * ggg_notebook_set_tab_detachable:
+ * @notebook: a #GggNotebook
+ * @child: a child #GtkWidget
+ * @detachable: whether the tab is detachable or not
+ *
+ * Sets whether the tab can be detached from @notebook to another
+ * notebook or widget.
+ *
+ * Note that 2 notebooks must share a common group identificator
+ * (see ggg_notebook_set_group_id ()) to allow automatic tabs
+ * interchange between them.
+ *
+ * If you want a widget to interact with a notebook through DnD
+ * (i.e.: accept dragged tabs from it) it must be set as a drop
+ * destination and accept the target "GGG_NOTEBOOK_TAB". The notebook
+ * will fill the selection with a GtkWidget** pointing to the child
+ * widget that corresponds to the dropped tab.
+ *
+ * <informalexample><programlisting>
+ *  static void
+ *  on_drop_zone_drag_data_received (GtkWidget        *widget,
+ *                                   GdkDragContext   *context,
+ *                                   gint              x,
+ *                                   gint              y,
+ *                                   GtkSelectionData *selection_data,
+ *                                   guint             info,
+ *                                   guint             time,
+ *                                   gpointer          user_data)
+ *  {
+ *    GtkWidget *notebook;
+ *    GtkWidget **child;
+ *    
+ *    notebook = gtk_drag_get_source_widget (context);
+ *    child = (void*) selection_data->data;
+ *    
+ *    process_widget (*child);
+ *    gtk_container_remove (GTK_CONTAINER (notebook), *child);
+ *  }
+ * </programlisting></informalexample>
+ *
+ * If you want a notebook to accept drags from other widgets,
+ * you will have to set your own DnD code to do it.
+ *
+ * Since: 2.10
+ **/
+void
+ggg_notebook_set_tab_detachable (GggNotebook *notebook,
+				 GtkWidget  *child,
+				 gboolean    detachable)
+{
+  GList *list;
+
+  g_return_if_fail (GGG_IS_NOTEBOOK (notebook));
+  g_return_if_fail (GTK_IS_WIDGET (child));
+
+  list = CHECK_FIND_CHILD (notebook, child);
+  if (!list)  
+    return;
+
+  if (GGG_NOTEBOOK_PAGE (list)->detachable != detachable)
+    {
+      GGG_NOTEBOOK_PAGE (list)->detachable = (detachable == TRUE);
+      gtk_widget_child_notify (child, "detachable");
+    }
+}
+
+#define __GGG_NOTEBOOK_C__
+
+
+/* ========================================================================= */
+/* Redirect all GtkNotebook symbols we use to GggNotebook.  */
+
+#define GtkNotebook GggNotebook
+#define GtkNotebookClass GggNotebookClass
+#define gtk_notebook_get_nth_page ggg_notebook_get_nth_page
+#define gtk_notebook_get_nth_page ggg_notebook_get_nth_page
+#define gtk_notebook_set_current_page ggg_notebook_set_current_page
+#define gtk_notebook_prev_page ggg_notebook_prev_page
+#define gtk_notebook_next_page ggg_notebook_next_page
+#define gtk_notebook_insert_page ggg_notebook_insert_page
+#define gtk_notebook_get_tab_label ggg_notebook_get_tab_label
+#define gtk_notebook_reorder_child ggg_notebook_reorder_child
+#undef GTK_NOTEBOOK
+#define GTK_NOTEBOOK(nb_) GGG_NOTEBOOK(nb_)
+#undef GTK_TYPE_NOTEBOOK
+#define GTK_TYPE_NOTEBOOK GGG_TYPE_NOTEBOOK
+#endif
+
 struct _GnmNotebook {
 	GtkNotebook parent;
 
@@ -75,23 +8303,6 @@ gnm_notebook_size_allocate (GtkWidget     *widget,
 		(widget, &alc);
 }
 
-#if 0
-static void
-dump_region (GdkRegion *reg)
-{
-	GdkRectangle *rects;
-	gint i, n;
-
-	gdk_region_get_rectangles (reg, &rects, &n);
-	g_printerr ("Region has %d rectangles.\n", n);
-	for (i = 0; i < n; i++)
-		g_printerr ("  region %d : (%d,%d) at %dx%d\n",
-			    i,
-			    rects[i].x, rects[i].y,
-			    rects[i].width, rects[i].height);
-}
-#endif
-
 static gint
 gnm_notebook_expose (GtkWidget      *widget,
 		     GdkEventExpose *event)



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