Fixed bug reporting the significance of paired value t-test.
[pspp-builds.git] / lib / gtksheet / gtksheet.c
index 2e5351191490e54a0d2f36dc14056f9055d06c69..942b0233117b4641a61b9dadccbec4fed9f51866 100644 (file)
@@ -1,5 +1,11 @@
-/* This version of GtkSheet has been *heavily* modified, for the specific
-   requirements of PSPPIRE. */
+/*
+ * Copyright (C) 2006, 2008 Free Software Foundation
+ *
+ * This version of GtkSheet has been *heavily* modified, for the specific
+ * requirements of PSPPIRE.  The changes are copyright by the
+ * Free Software Foundation.  The copyright notice for the original work is
+ * below.
+ */
 
 /* GtkSheet widget for Gtk+.
  * Copyright (C) 1999-2001 Adrian E. Feiguin <adrian@ifir.ifir.edu.ar>
@@ -66,7 +72,6 @@
 /* sheet flags */
 enum
   {
-    GTK_SHEET_IS_LOCKED = 1 << 0,
     GTK_SHEET_IS_FROZEN = 1 << 1,
     GTK_SHEET_IN_XDRAG = 1 << 2,
     GTK_SHEET_IN_YDRAG = 1 << 3,
@@ -80,9 +85,6 @@ enum
 #define GTK_SHEET_SET_FLAGS(sheet,flag) (GTK_SHEET_FLAGS (sheet) |= (flag))
 #define GTK_SHEET_UNSET_FLAGS(sheet,flag) (GTK_SHEET_FLAGS (sheet) &= ~ (flag))
 
-#define GTK_SHEET_IS_LOCKED(sheet) (GTK_SHEET_FLAGS (sheet) & GTK_SHEET_IS_LOCKED)
-
-
 #define GTK_SHEET_IS_FROZEN(sheet) (GTK_SHEET_FLAGS (sheet) & GTK_SHEET_IS_FROZEN)
 #define GTK_SHEET_IN_XDRAG(sheet) (GTK_SHEET_FLAGS (sheet) & GTK_SHEET_IN_XDRAG)
 #define GTK_SHEET_IN_YDRAG(sheet) (GTK_SHEET_FLAGS (sheet) & GTK_SHEET_IN_YDRAG)
@@ -94,18 +96,11 @@ enum
 #define CELL_SPACING 1
 #define DRAG_WIDTH 6
 #define TIMEOUT_HOVER 300
-#define TIME_INTERVAL 8
 #define COLUMN_MIN_WIDTH 10
-#define MINROWS 1
-#define MINCOLS 1
-#define MAXLENGTH 30
 #define CELLOFFSET 4
 #define DEFAULT_COLUMN_WIDTH 80
 
-
 static void gtk_sheet_update_primary_selection (GtkSheet *sheet);
-
-
 static void gtk_sheet_column_title_button_draw (GtkSheet *sheet, gint column);
 
 static void gtk_sheet_row_title_button_draw (GtkSheet *sheet, gint row);
@@ -113,8 +108,8 @@ static void gtk_sheet_row_title_button_draw (GtkSheet *sheet, gint row);
 
 static gboolean gtk_sheet_cell_empty (const GtkSheet *sheet, gint row, gint col);
 
-static inline
-void dispose_string (const GtkSheet *sheet, gchar *text)
+static inline  void
+dispose_string (const GtkSheet *sheet, gchar *text)
 {
   GSheetModel *model = gtk_sheet_get_model (sheet);
 
@@ -175,7 +170,7 @@ guint STRING_WIDTH (GtkWidget *widget,
 
   pango_layout_get_extents (layout, NULL, &rect);
 
-  g_object_unref (G_OBJECT (layout));
+  g_object_unref (layout);
   return PANGO_PIXELS (rect.width);
 }
 
@@ -202,7 +197,7 @@ yyy_row_is_visible (const GtkSheet *sheet, gint row)
 {
   GSheetRow *row_geo = sheet->row_geometry;
 
-  return g_sheet_row_get_visibility (row_geo, row, 0);
+  return g_sheet_row_get_visibility (row_geo, row);
 }
 
 
@@ -211,7 +206,7 @@ yyy_row_is_sensitive (const GtkSheet *sheet, gint row)
 {
   GSheetRow *row_geo = sheet->row_geometry;
 
-  return g_sheet_row_get_sensitivity (row_geo, row, 0);
+  return g_sheet_row_get_sensitivity (row_geo, row);
 }
 
 
@@ -221,7 +216,7 @@ yyy_row_count (const GtkSheet *sheet)
 {
   GSheetRow *row_geo = sheet->row_geometry;
 
-  return g_sheet_row_get_row_count (row_geo, 0);
+  return g_sheet_row_get_row_count (row_geo);
 }
 
 static inline gint
@@ -229,7 +224,7 @@ yyy_row_height (const GtkSheet *sheet, gint row)
 {
   GSheetRow *row_geo = sheet->row_geometry;
 
-  return g_sheet_row_get_height (row_geo, row, 0);
+  return g_sheet_row_get_height (row_geo, row);
 }
 
 static gint
@@ -237,7 +232,7 @@ yyy_row_top_ypixel (const GtkSheet *sheet, gint row)
 {
   GSheetRow *geo = sheet->row_geometry;
 
-  gint y = g_sheet_row_start_pixel (geo, row, 0);
+  gint y = g_sheet_row_start_pixel (geo, row);
 
   if ( sheet->column_titles_visible )
     y += sheet->column_title_area.height;
@@ -259,7 +254,7 @@ yyy_row_ypixel_to_row (const GtkSheet *sheet, gint y)
 
   if (y < cy) return 0;
 
-  return g_sheet_row_pixel_to_row (geo, y - cy, 0);
+  return g_sheet_row_pixel_to_row (geo, y - cy);
 }
 
 
@@ -434,7 +429,7 @@ yyy_row_button (GtkSheet *sheet, gint row)
 {
   GSheetRow *row_geo = sheet->row_geometry;
 
-  return g_sheet_row_get_button (row_geo, row, sheet);
+  return g_sheet_row_get_button (row_geo, row);
 }
 
 
@@ -444,7 +439,7 @@ static inline void
 yyy_set_row_height (GtkSheet *sheet, gint row, gint height)
 {
   if ( sheet->row_geometry )
-    g_sheet_row_set_height (sheet->row_geometry, row, height, sheet);
+    g_sheet_row_set_height (sheet->row_geometry, row, height);
 }
 
 
@@ -613,7 +608,7 @@ POSSIBLE_RESIZE (const GtkSheet *sheet, gint x, gint y,
 
 static void gtk_sheet_class_init                (GtkSheetClass * klass);
 static void gtk_sheet_init                      (GtkSheet * sheet);
-static void gtk_sheet_destroy                   (GtkObject * object);
+static void gtk_sheet_dispose                   (GObject * object);
 static void gtk_sheet_finalize                          (GObject * object);
 static void gtk_sheet_style_set                 (GtkWidget *widget,
                                                  GtkStyle *previous_style);
@@ -693,7 +688,7 @@ static void gtk_sheet_draw_corners           (GtkSheet *sheet,
 
 static void gtk_sheet_entry_changed             (GtkWidget *widget,
                                                  gpointer data);
-static gboolean gtk_sheet_deactivate_cell       (GtkSheet *sheet);
+static void gtk_sheet_deactivate_cell   (GtkSheet *sheet);
 static void gtk_sheet_hide_active_cell          (GtkSheet *sheet);
 static gboolean gtk_sheet_activate_cell                 (GtkSheet *sheet,
                                                  gint row, gint col);
@@ -803,11 +798,7 @@ enum
     TRAVERSE,
     DEACTIVATE,
     ACTIVATE,
-    SET_CELL,
-    CLEAR_CELL,
     CHANGED,
-    NEW_COL_WIDTH,
-    NEW_ROW_HEIGHT,
     LAST_SIGNAL
   };
 
@@ -880,17 +871,105 @@ gtk_sheet_range_get_type (void)
   return sheet_range_type;
 }
 
+
+static void column_titles_changed (GtkWidget *w, gint first, gint n_columns, gpointer data);
+
+/* Properties */
+enum
+  {
+    PROP_0,
+    PROP_ROW_GEO,
+    PROP_COL_GEO,
+    PROP_MODEL
+  };
+
+static void
+gtk_sheet_set_row_geometry (GtkSheet *sheet, GSheetRow *geo)
+{
+  if ( sheet->row_geometry ) g_object_unref (sheet->row_geometry);
+
+  sheet->row_geometry = geo;
+
+  if ( sheet->row_geometry ) g_object_ref (sheet->row_geometry);
+}
+
+static void
+gtk_sheet_set_column_geometry (GtkSheet *sheet, GSheetColumn *geo)
+{
+  if ( sheet->column_geometry ) g_object_unref (sheet->column_geometry);
+
+  sheet->column_geometry = geo;
+
+  if ( sheet->column_geometry ) g_object_ref (sheet->column_geometry);
+}
+
+
+static void
+gtk_sheet_set_property (GObject         *object,
+                       guint            prop_id,
+                       const GValue    *value,
+                       GParamSpec      *pspec)
+
+{
+  GtkSheet *sheet = GTK_SHEET (object);
+
+  switch (prop_id)
+    {
+    case PROP_ROW_GEO:
+      gtk_sheet_set_row_geometry (sheet, g_value_get_pointer (value));
+      break;
+    case PROP_COL_GEO:
+      gtk_sheet_set_column_geometry (sheet, g_value_get_pointer (value));
+      if ( sheet->column_geometry)
+       g_signal_connect (sheet->column_geometry, "columns_changed",
+                         G_CALLBACK (column_titles_changed), sheet);
+      break;
+    case PROP_MODEL:
+      gtk_sheet_set_model (sheet, g_value_get_pointer (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    };
+}
+
+static void
+gtk_sheet_get_property (GObject         *object,
+                       guint            prop_id,
+                       GValue          *value,
+                       GParamSpec      *pspec)
+{
+  GtkSheet *sheet = GTK_SHEET (object);
+
+  switch (prop_id)
+    {
+    case PROP_ROW_GEO:
+      g_value_set_pointer (value, sheet->row_geometry);
+      break;
+    case PROP_COL_GEO:
+      g_value_set_pointer (value, sheet->column_geometry);
+      break;
+    case PROP_MODEL:
+      g_value_set_pointer (value, sheet->model);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    };
+}
+
+
 static void
 gtk_sheet_class_init (GtkSheetClass * klass)
 {
-  GtkObjectClass *object_class;
-  GtkWidgetClass *widget_class;
-  GtkContainerClass *container_class;
-  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
-  object_class = (GtkObjectClass *) klass;
-  widget_class = (GtkWidgetClass *) klass;
-  container_class = (GtkContainerClass *) klass;
+  GParamSpec *row_geo_spec ;
+  GParamSpec *col_geo_spec ;
+  GParamSpec *model_spec ;
+
+  GtkWidgetClass *widget_class = (GtkWidgetClass *) klass;
+  GtkContainerClass *container_class = (GtkContainerClass *) klass;
 
   parent_class = g_type_class_peek_parent (klass);
 
@@ -907,7 +986,7 @@ gtk_sheet_class_init (GtkSheetClass * klass)
                  G_SIGNAL_RUN_LAST,
                  offsetof (GtkSheetClass, select_row),
                  NULL, NULL,
-                 gtkextra_VOID__INT,
+                 g_cclosure_marshal_VOID__INT,
                  G_TYPE_NONE,
                  1,
                  G_TYPE_INT);
@@ -926,7 +1005,7 @@ gtk_sheet_class_init (GtkSheetClass * klass)
                  G_SIGNAL_RUN_LAST,
                  offsetof (GtkSheetClass, select_column),
                  NULL, NULL,
-                 gtkextra_VOID__INT,
+                 g_cclosure_marshal_VOID__INT,
                  G_TYPE_NONE,
                  1,
                  G_TYPE_INT);
@@ -945,7 +1024,7 @@ gtk_sheet_class_init (GtkSheetClass * klass)
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
-                 gtkextra_VOID__INT,
+                 g_cclosure_marshal_VOID__INT,
                  G_TYPE_NONE,
                  1,
                  G_TYPE_INT);
@@ -964,7 +1043,7 @@ gtk_sheet_class_init (GtkSheetClass * klass)
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
-                 gtkextra_VOID__INT,
+                 g_cclosure_marshal_VOID__INT,
                  G_TYPE_NONE,
                  1,
                  G_TYPE_INT);
@@ -1018,7 +1097,7 @@ gtk_sheet_class_init (GtkSheetClass * klass)
                  G_SIGNAL_RUN_LAST,
                  offsetof (GtkSheetClass, select_range),
                  NULL, NULL,
-                 gtkextra_VOID__BOXED,
+                 g_cclosure_marshal_VOID__BOXED,
                  G_TYPE_NONE,
                  1,
                  GTK_TYPE_SHEET_RANGE);
@@ -1065,8 +1144,8 @@ gtk_sheet_class_init (GtkSheetClass * klass)
                  G_SIGNAL_RUN_LAST,
                  offsetof (GtkSheetClass, deactivate),
                  NULL, NULL,
-                 gtkextra_BOOLEAN__INT_INT,
-                 G_TYPE_BOOLEAN, 2, G_TYPE_INT, G_TYPE_INT);
+                 gtkextra_VOID__INT_INT,
+                 G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
 
   sheet_signals[ACTIVATE] =
     g_signal_new ("activate",
@@ -1077,25 +1156,6 @@ gtk_sheet_class_init (GtkSheetClass * klass)
                  gtkextra_BOOLEAN__INT_INT,
                  G_TYPE_BOOLEAN, 2, G_TYPE_INT, G_TYPE_INT);
 
-  sheet_signals[SET_CELL] =
-    g_signal_new ("set-cell",
-                 G_TYPE_FROM_CLASS (object_class),
-                 G_SIGNAL_RUN_LAST,
-                 offsetof (GtkSheetClass, set_cell),
-                 NULL, NULL,
-                 gtkextra_VOID__INT_INT,
-                 G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
-
-
-  sheet_signals[CLEAR_CELL] =
-    g_signal_new ("clear-cell",
-                 G_TYPE_FROM_CLASS (object_class),
-                 G_SIGNAL_RUN_LAST,
-                 offsetof (GtkSheetClass, clear_cell),
-                 NULL, NULL,
-                 gtkextra_VOID__INT_INT,
-                 G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
-
   sheet_signals[CHANGED] =
     g_signal_new ("changed",
                  G_TYPE_FROM_CLASS (object_class),
@@ -1105,24 +1165,6 @@ gtk_sheet_class_init (GtkSheetClass * klass)
                  gtkextra_VOID__INT_INT,
                  G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
 
-  sheet_signals[NEW_COL_WIDTH] =
-    g_signal_new ("new-column-width",
-                 G_TYPE_FROM_CLASS (object_class),
-                 G_SIGNAL_RUN_LAST,
-                 offsetof (GtkSheetClass, new_column_width), /*!!!! */
-                 NULL, NULL,
-                 gtkextra_VOID__INT_INT,
-                 G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
-
-  sheet_signals[NEW_ROW_HEIGHT] =
-    g_signal_new ("new-row-height",
-                 G_TYPE_FROM_CLASS (object_class),
-                 G_SIGNAL_RUN_LAST,
-                 offsetof (GtkSheetClass, new_row_height), /*!!!! */
-                 NULL, NULL,
-                 gtkextra_VOID__INT_INT,
-                 G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT);
-
   widget_class->set_scroll_adjustments_signal =
     g_signal_new ("set-scroll-adjustments",
                  G_TYPE_FROM_CLASS (object_class),
@@ -1137,8 +1179,44 @@ gtk_sheet_class_init (GtkSheetClass * klass)
   container_class->remove = gtk_sheet_remove;
   container_class->forall = gtk_sheet_forall;
 
-  object_class->destroy = gtk_sheet_destroy;
-  gobject_class->finalize = gtk_sheet_finalize;
+  object_class->dispose = gtk_sheet_dispose;
+  object_class->finalize = gtk_sheet_finalize;
+
+
+  row_geo_spec =
+    g_param_spec_pointer ("row-geometry",
+                         "Row Geometry",
+                         "A pointer to the model of the row geometry",
+                         G_PARAM_READABLE | G_PARAM_WRITABLE );
+
+  col_geo_spec =
+    g_param_spec_pointer ("column-geometry",
+                         "Column Geometry",
+                         "A pointer to the model of the column geometry",
+                         G_PARAM_READABLE | G_PARAM_WRITABLE );
+
+  model_spec =
+    g_param_spec_pointer ("model",
+                         "Model",
+                         "A pointer to the data model",
+                         G_PARAM_READABLE | G_PARAM_WRITABLE );
+
+
+  object_class->set_property = gtk_sheet_set_property;
+  object_class->get_property = gtk_sheet_get_property;
+
+  g_object_class_install_property (object_class,
+                                   PROP_ROW_GEO,
+                                   row_geo_spec);
+
+  g_object_class_install_property (object_class,
+                                   PROP_COL_GEO,
+                                   col_geo_spec);
+
+  g_object_class_install_property (object_class,
+                                   PROP_MODEL,
+                                   model_spec);
+
 
   widget_class->realize = gtk_sheet_realize;
   widget_class->unrealize = gtk_sheet_unrealize;
@@ -1164,14 +1242,13 @@ gtk_sheet_class_init (GtkSheetClass * klass)
   klass->traverse = NULL;
   klass->deactivate = NULL;
   klass->activate = NULL;
-  klass->set_cell = NULL;
-  klass->clear_cell = NULL;
   klass->changed = NULL;
 }
 
 static void
 gtk_sheet_init (GtkSheet *sheet)
 {
+  sheet->model = NULL;
   sheet->column_geometry = NULL;
   sheet->row_geometry = NULL;
 
@@ -1203,7 +1280,6 @@ gtk_sheet_init (GtkSheet *sheet)
   sheet->selection_cell.row = 0;
   sheet->selection_cell.col = 0;
 
-  sheet->sheet_entry = NULL;
   sheet->pixmap = NULL;
 
   sheet->range.row0 = 0;
@@ -1216,7 +1292,8 @@ gtk_sheet_init (GtkSheet *sheet)
   sheet->sheet_window = NULL;
   sheet->sheet_window_width = 0;
   sheet->sheet_window_height = 0;
-  sheet->sheet_entry = NULL;
+  sheet->entry_widget = NULL;
+  sheet->entry_container = NULL;
   sheet->button = NULL;
 
   sheet->hoffset = 0;
@@ -1231,14 +1308,34 @@ gtk_sheet_init (GtkSheet *sheet)
   sheet->bg_gc = NULL;
   sheet->x_drag = 0;
   sheet->y_drag = 0;
-
   gdk_color_parse ("white", &sheet->bg_color);
-  gdk_color_alloc (gdk_colormap_get_system (), &sheet->bg_color);
+  gdk_colormap_alloc_color (gdk_colormap_get_system (), &sheet->bg_color, FALSE,
+                            TRUE);
   gdk_color_parse ("gray", &sheet->grid_color);
-  gdk_color_alloc (gdk_colormap_get_system (), &sheet->grid_color);
+  gdk_colormap_alloc_color (gdk_colormap_get_system (), &sheet->grid_color, FALSE,
+                            TRUE);
+
   sheet->show_grid = TRUE;
 
   sheet->motion_timer = 0;
+
+  sheet->columns_resizable = TRUE;
+  sheet->rows_resizable = TRUE;
+
+  sheet->row_titles_visible = TRUE;
+  sheet->row_title_area.width = DEFAULT_COLUMN_WIDTH;
+
+  sheet->column_titles_visible = TRUE;
+  sheet->autoscroll = TRUE;
+  sheet->justify_entry = TRUE;
+
+
+  /* create sheet entry */
+  sheet->entry_type = 0;
+  create_sheet_entry (sheet);
+
+  /* create global selection button */
+  create_global_button (sheet);
 }
 
 
@@ -1362,12 +1459,6 @@ range_update_callback (GSheetModel *m, gint row0, gint col0,
 }
 
 
-static void gtk_sheet_construct         (GtkSheet *sheet,
-                                 GSheetRow *vgeo,
-                                 GSheetColumn *hgeo,
-                                 const gchar *title);
-
-
 /**
  * gtk_sheet_new:
  * @rows: initial number of rows
@@ -1380,17 +1471,13 @@ static void gtk_sheet_construct  (GtkSheet *sheet,
  * Returns: the new sheet widget
  */
 GtkWidget *
-gtk_sheet_new (GSheetRow *vgeo, GSheetColumn *hgeo, const gchar *title,
-              GSheetModel *model)
+gtk_sheet_new (GSheetRow *vgeo, GSheetColumn *hgeo, GSheetModel *model)
 {
-  GtkWidget *widget = g_object_new (GTK_TYPE_SHEET, NULL);
-
-  gtk_sheet_construct (GTK_SHEET (widget), vgeo, hgeo, title);
-
-  if (model)
-    gtk_sheet_set_model (GTK_SHEET (widget), model);
-
-
+  GtkWidget *widget = g_object_new (GTK_TYPE_SHEET,
+                                   "row-geometry", vgeo,
+                                   "column-geometry", hgeo,
+                                   "model", model,
+                                   NULL);
   return widget;
 }
 
@@ -1407,25 +1494,30 @@ void
 gtk_sheet_set_model (GtkSheet *sheet, GSheetModel *model)
 {
   g_return_if_fail (GTK_IS_SHEET (sheet));
-  g_return_if_fail (G_IS_SHEET_MODEL (model));
+
+  if (sheet->model ) g_object_unref (sheet->model);
 
   sheet->model = model;
 
-  g_signal_connect (model, "range_changed",
-                   G_CALLBACK (range_update_callback), sheet);
+  if ( model)
+    {
+      g_object_ref (model);
 
-  g_signal_connect (model, "rows_inserted",
-                   G_CALLBACK (rows_inserted_deleted_callback), sheet);
+      g_signal_connect (model, "range_changed",
+                       G_CALLBACK (range_update_callback), sheet);
 
-  g_signal_connect (model, "rows_deleted",
-                   G_CALLBACK (rows_inserted_deleted_callback), sheet);
+      g_signal_connect (model, "rows_inserted",
+                       G_CALLBACK (rows_inserted_deleted_callback), sheet);
 
-  g_signal_connect (model, "columns_inserted",
-                   G_CALLBACK (columns_inserted_deleted_callback), sheet);
+      g_signal_connect (model, "rows_deleted",
+                       G_CALLBACK (rows_inserted_deleted_callback), sheet);
 
-  g_signal_connect (model, "columns_deleted",
-                   G_CALLBACK (columns_inserted_deleted_callback), sheet);
+      g_signal_connect (model, "columns_inserted",
+                       G_CALLBACK (columns_inserted_deleted_callback), sheet);
 
+      g_signal_connect (model, "columns_deleted",
+                       G_CALLBACK (columns_inserted_deleted_callback), sheet);
+    }
 }
 
 
@@ -1452,7 +1544,7 @@ column_titles_changed (GtkWidget *w, gint first, gint n_columns, gpointer data)
       for ( i = first ; i <= first + n_columns ; ++i )
        {
          gtk_sheet_column_title_button_draw (sheet, i);
-         g_signal_emit (G_OBJECT (sheet), sheet_signals[CHANGED], 0, -1, i);
+         g_signal_emit (sheet, sheet_signals[CHANGED], 0, -1, i);
        }
     }
 
@@ -1461,73 +1553,6 @@ column_titles_changed (GtkWidget *w, gint first, gint n_columns, gpointer data)
 
 }
 
-static void
-gtk_sheet_construct (GtkSheet *sheet,
-                    GSheetRow *vgeo,
-                    GSheetColumn *hgeo,
-                    const gchar *title)
-{
-  g_return_if_fail (G_IS_SHEET_COLUMN (hgeo));
-  g_return_if_fail (G_IS_SHEET_ROW (vgeo));
-
-  sheet->column_geometry = hgeo;
-  sheet->row_geometry = vgeo;
-
-
-  sheet->columns_resizable = TRUE;
-  sheet->rows_resizable = TRUE;
-
-  sheet->row_titles_visible = TRUE;
-  sheet->row_title_area.width = DEFAULT_COLUMN_WIDTH;
-
-  sheet->column_titles_visible = TRUE;
-  sheet->autoscroll = TRUE;
-  sheet->justify_entry = TRUE;
-
-
-  /* create sheet entry */
-  sheet->entry_type = 0;
-  create_sheet_entry (sheet);
-
-  /* create global selection button */
-  create_global_button (sheet);
-
-  if (title)
-    sheet->name = g_strdup (title);
-
-  g_signal_connect (sheet->column_geometry, "columns_changed",
-                   G_CALLBACK (column_titles_changed), sheet);
-
-}
-
-
-GtkWidget *
-gtk_sheet_new_with_custom_entry (GSheetRow *rows, GSheetColumn *columns,
-                                const gchar *title, GtkType entry_type)
-{
-  GtkWidget *widget = g_object_new (GTK_TYPE_SHEET, NULL);
-
-  gtk_sheet_construct_with_custom_entry (GTK_SHEET (widget),
-                                        rows, columns, title, entry_type);
-
-  return widget;
-}
-
-void
-gtk_sheet_construct_with_custom_entry (GtkSheet *sheet,
-                                      GSheetRow *vgeo,
-                                      GSheetColumn *hgeo,
-                                      const gchar *title,
-                                      GtkType entry_type)
-{
-  gtk_sheet_construct (sheet, vgeo, hgeo, title);
-
-  sheet->entry_type = entry_type;
-  create_sheet_entry (sheet);
-}
-
-
-
 void
 gtk_sheet_change_entry (GtkSheet *sheet, GtkType entry_type)
 {
@@ -1548,7 +1573,7 @@ gtk_sheet_change_entry (GtkSheet *sheet, GtkType entry_type)
   if (state == GTK_SHEET_NORMAL)
     {
       gtk_sheet_show_active_cell (sheet);
-      g_signal_connect (G_OBJECT (gtk_sheet_get_entry (sheet)),
+      g_signal_connect (gtk_sheet_get_entry (sheet),
                        "changed",
                        G_CALLBACK (gtk_sheet_entry_changed),
                        sheet);
@@ -1587,7 +1612,7 @@ gtk_sheet_set_background (GtkSheet *sheet, GdkColor *color)
   if (!color)
     {
       gdk_color_parse ("white", &sheet->bg_color);
-      gdk_color_alloc (gdk_colormap_get_system (), &sheet->bg_color);
+      gdk_colormap_alloc_color (gdk_colormap_get_system (), &sheet->bg_color, FALSE, TRUE);
     }
   else
     sheet->bg_color = *color;
@@ -1605,7 +1630,7 @@ gtk_sheet_set_grid (GtkSheet *sheet, GdkColor *color)
   if (!color)
     {
       gdk_color_parse ("black", &sheet->grid_color);
-      gdk_color_alloc (gdk_colormap_get_system (), &sheet->grid_color);
+      gdk_colormap_alloc_color (gdk_colormap_get_system (), &sheet->grid_color, FALSE, TRUE);
     }
   else
     sheet->grid_color = *color;
@@ -1752,64 +1777,7 @@ gtk_sheet_justify_entry (GtkSheet *sheet)
   return sheet->justify_entry;
 }
 
-void
-gtk_sheet_set_locked (GtkSheet *sheet, gboolean locked)
-{
-  g_return_if_fail (sheet != NULL);
-  g_return_if_fail (GTK_IS_SHEET (sheet));
-
-  if ( locked )
-    {
-      GTK_SHEET_SET_FLAGS (sheet, GTK_SHEET_IS_LOCKED);
-      gtk_widget_hide (sheet->sheet_entry);
-      gtk_widget_unmap (sheet->sheet_entry);
-    }
-  else
-    {
-      GTK_SHEET_UNSET_FLAGS (sheet, GTK_SHEET_IS_LOCKED);
-      if (GTK_WIDGET_MAPPED (GTK_WIDGET (sheet)))
-       {
-         gtk_widget_show (sheet->sheet_entry);
-         gtk_widget_map (sheet->sheet_entry);
-       }
-    }
-
-  gtk_editable_set_editable (GTK_EDITABLE (sheet->sheet_entry), locked);
 
-}
-
-gboolean
-gtk_sheet_locked (const GtkSheet *sheet)
-{
-  g_return_val_if_fail (sheet != NULL, FALSE);
-  g_return_val_if_fail (GTK_IS_SHEET (sheet), FALSE);
-
-  return GTK_SHEET_IS_LOCKED (sheet);
-}
-
-/* This routine has problems with gtk+- 1.2 related with the
-   label / button drawing - I think it's a bug in gtk+- 1.2 */
-void
-gtk_sheet_set_title (GtkSheet *sheet, const gchar *title)
-{
-  GtkWidget *label;
-
-  g_return_if_fail (sheet != NULL);
-  g_return_if_fail (title != NULL);
-  g_return_if_fail (GTK_IS_SHEET (sheet));
-
-  if (sheet->name)
-    g_free (sheet->name);
-
-  sheet->name = g_strdup (title);
-
-  if (!GTK_WIDGET_REALIZED (GTK_WIDGET (sheet)) || !title) return;
-
-  if (GTK_BIN (sheet->button)->child)
-    label = GTK_BIN (sheet->button)->child;
-
-  size_allocate_global_button (sheet);
-}
 
 void
 gtk_sheet_freeze (GtkSheet *sheet)
@@ -1840,14 +1808,14 @@ gtk_sheet_thaw (GtkSheet *sheet)
   sheet->old_hadjustment = -1.;
 
   if (sheet->hadjustment)
-    g_signal_emit_by_name (G_OBJECT (sheet->hadjustment),
+    g_signal_emit_by_name (sheet->hadjustment,
                           "value_changed");
   if (sheet->vadjustment)
-    g_signal_emit_by_name (G_OBJECT (sheet->vadjustment),
+    g_signal_emit_by_name (sheet->vadjustment,
                           "value_changed");
 
   if (sheet->state == GTK_STATE_NORMAL)
-    if (sheet->sheet_entry && GTK_WIDGET_MAPPED (sheet->sheet_entry))
+    if (sheet->entry_widget && GTK_WIDGET_MAPPED (sheet->entry_widget))
       {
        gtk_sheet_activate_cell (sheet, sheet->active_cell.row,
                                 sheet->active_cell.col);
@@ -1866,7 +1834,7 @@ gtk_sheet_set_row_titles_width (GtkSheet *sheet, guint width)
 
   sheet->old_hadjustment = -1.;
   if (sheet->hadjustment)
-    g_signal_emit_by_name (G_OBJECT (sheet->hadjustment),
+    g_signal_emit_by_name (sheet->hadjustment,
                           "value_changed");
   size_allocate_global_button (sheet);
 }
@@ -1882,7 +1850,7 @@ gtk_sheet_set_column_titles_height (GtkSheet *sheet, guint height)
 
   sheet->old_vadjustment = -1.;
   if (sheet->vadjustment)
-    g_signal_emit_by_name (G_OBJECT (sheet->vadjustment),
+    g_signal_emit_by_name (sheet->vadjustment,
                           "value_changed");
   size_allocate_global_button (sheet);
 }
@@ -1921,7 +1889,7 @@ gtk_sheet_show_column_titles (GtkSheet *sheet)
 
   sheet->old_vadjustment = -1.;
   if (sheet->vadjustment)
-    g_signal_emit_by_name (G_OBJECT (sheet->vadjustment),
+    g_signal_emit_by_name (sheet->vadjustment,
                           "value_changed");
   size_allocate_global_button (sheet);
 }
@@ -1963,7 +1931,7 @@ gtk_sheet_show_row_titles (GtkSheet *sheet)
 
   sheet->old_hadjustment = -1.;
   if (sheet->hadjustment)
-    g_signal_emit_by_name (G_OBJECT (sheet->hadjustment),
+    g_signal_emit_by_name (sheet->hadjustment,
                           "value_changed");
   size_allocate_global_button (sheet);
 }
@@ -1999,7 +1967,7 @@ gtk_sheet_hide_column_titles (GtkSheet *sheet)
 
   sheet->old_vadjustment = -1.;
   if (sheet->vadjustment)
-    g_signal_emit_by_name (G_OBJECT (sheet->vadjustment),
+    g_signal_emit_by_name (sheet->vadjustment,
                           "value_changed");
 }
 
@@ -2034,7 +2002,7 @@ gtk_sheet_hide_row_titles (GtkSheet *sheet)
 
   sheet->old_hadjustment = -1.;
   if (sheet->hadjustment)
-    g_signal_emit_by_name (G_OBJECT (sheet->hadjustment),
+    g_signal_emit_by_name (sheet->hadjustment,
                           "value_changed");
 }
 
@@ -2080,21 +2048,22 @@ gtk_sheet_moveto (GtkSheet *sheet,
   width = sheet->sheet_window_width;
 
   /* adjust vertical scrollbar */
-  if (row >= 0 && row_align >= 0.)
+  if (row >= 0 && row_align >= 0.0)
     {
       y = ROW_TOP_YPIXEL (sheet, row) - sheet->voffset
-       - (gint) ( row_align*height + (1. - row_align)
+       - (gint) ( row_align * height + (1.0 - row_align)
                   * yyy_row_height (sheet, row));
 
       /* This forces the sheet to scroll when you don't see the entire cell */
       min_row = row;
       adjust = 0;
-      if (row_align == 1.)
+      if (row_align >= 1.0)
        {
          while (min_row >= 0 && min_row > MIN_VISIBLE_ROW (sheet))
            {
              if (yyy_row_is_visible (sheet, min_row))
                adjust += yyy_row_height (sheet, min_row);
+
              if (adjust >= height)
                {
                  break;
@@ -2102,6 +2071,9 @@ gtk_sheet_moveto (GtkSheet *sheet,
              min_row--;
            }
          min_row = MAX (min_row, 0);
+
+         min_row ++;
+
          y = ROW_TOP_YPIXEL (sheet, min_row) - sheet->voffset +
            yyy_row_height (sheet, min_row) - 1;
        }
@@ -2112,23 +2084,22 @@ gtk_sheet_moveto (GtkSheet *sheet,
        sheet->vadjustment->value = y;
 
       sheet->old_vadjustment = -1.;
-      g_signal_emit_by_name (G_OBJECT (sheet->vadjustment),
+      g_signal_emit_by_name (sheet->vadjustment,
                             "value_changed");
 
     }
 
   /* adjust horizontal scrollbar */
-  if (column >= 0 && col_align >= 0.)
+  if (column >= 0 && col_align >= 0.0)
     {
       x = COLUMN_LEFT_XPIXEL (sheet, column) - sheet->hoffset
-       - (gint) ( col_align*width + (1.- col_align)*
+       - (gint) ( col_align*width + (1.- col_align)*
                   xxx_column_width (sheet, column));
 
-
       /* This forces the sheet to scroll when you don't see the entire cell */
       min_col = column;
       adjust = 0;
-      if (col_align == 1.)
+      if (col_align == 1.0)
        {
          while (min_col >= 0 && min_col > MIN_VISIBLE_COLUMN (sheet))
            {
@@ -2152,9 +2123,8 @@ gtk_sheet_moveto (GtkSheet *sheet,
        sheet->hadjustment->value = x;
 
       sheet->old_vadjustment = -1.;
-      g_signal_emit_by_name (G_OBJECT (sheet->hadjustment),
+      g_signal_emit_by_name (sheet->hadjustment,
                             "value_changed");
-
     }
 }
 
@@ -2210,11 +2180,7 @@ gtk_sheet_select_row (GtkSheet * sheet,
   if (sheet->state != GTK_SHEET_NORMAL)
     gtk_sheet_real_unselect_range (sheet, NULL);
   else
-    {
-      gboolean veto = TRUE;
-      veto = gtk_sheet_deactivate_cell (sheet);
-      if (!veto) return;
-    }
+    gtk_sheet_deactivate_cell (sheet);
 
   sheet->state = GTK_SHEET_ROW_SELECTED;
   sheet->range.row0 = row;
@@ -2224,7 +2190,7 @@ gtk_sheet_select_row (GtkSheet * sheet,
   sheet->active_cell.row = row;
   sheet->active_cell.col = 0;
 
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[SELECT_ROW], 0, row);
+  g_signal_emit (sheet, sheet_signals[SELECT_ROW], 0, row);
   gtk_sheet_real_select_range (sheet, NULL);
 }
 
@@ -2241,11 +2207,8 @@ gtk_sheet_select_column (GtkSheet * sheet, gint column)
   if (sheet->state != GTK_SHEET_NORMAL)
     gtk_sheet_real_unselect_range (sheet, NULL);
   else
-    {
-      gboolean veto = TRUE;
-      veto = gtk_sheet_deactivate_cell (sheet);
-      if (!veto) return;
-    }
+    gtk_sheet_deactivate_cell (sheet);
+
 
   sheet->state = GTK_SHEET_COLUMN_SELECTED;
   sheet->range.row0 = 0;
@@ -2255,7 +2218,7 @@ gtk_sheet_select_column (GtkSheet * sheet, gint column)
   sheet->active_cell.row = 0;
   sheet->active_cell.col = column;
 
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[SELECT_COLUMN], 0, column);
+  g_signal_emit (sheet, sheet_signals[SELECT_COLUMN], 0, column);
   gtk_sheet_real_select_range (sheet, NULL);
 }
 
@@ -2358,21 +2321,21 @@ gtk_sheet_set_vadjustment (GtkSheet *sheet,
 
   if (sheet->vadjustment)
     {
-      g_signal_handlers_disconnect_matched (G_OBJECT (sheet->vadjustment),
+      g_signal_handlers_disconnect_matched (sheet->vadjustment,
                                            G_SIGNAL_MATCH_DATA,
                                            0, 0, 0, 0,
                                            sheet);
-      g_object_unref (G_OBJECT (sheet->vadjustment));
+      g_object_unref (sheet->vadjustment);
     }
 
   sheet->vadjustment = adjustment;
 
   if (sheet->vadjustment)
     {
-      g_object_ref (G_OBJECT (sheet->vadjustment));
-      g_object_ref_sink (G_OBJECT (sheet->vadjustment));
+      g_object_ref (sheet->vadjustment);
+      g_object_ref_sink (sheet->vadjustment);
 
-      g_signal_connect (G_OBJECT (sheet->vadjustment), "value_changed",
+      g_signal_connect (sheet->vadjustment, "value_changed",
                        G_CALLBACK (vadjustment_value_changed),
                        sheet);
     }
@@ -2404,21 +2367,21 @@ gtk_sheet_set_hadjustment (GtkSheet *sheet,
 
   if (sheet->hadjustment)
     {
-      g_signal_handlers_disconnect_matched (G_OBJECT (sheet->hadjustment),
+      g_signal_handlers_disconnect_matched (sheet->hadjustment,
                                            G_SIGNAL_MATCH_DATA,
                                            0, 0, 0, 0,
                                            sheet);
-      g_object_unref (G_OBJECT (sheet->hadjustment));
+      g_object_unref (sheet->hadjustment);
     }
 
   sheet->hadjustment = adjustment;
 
   if (sheet->hadjustment)
     {
-      g_object_ref (G_OBJECT (sheet->hadjustment));
-      g_object_ref_sink (G_OBJECT (sheet->hadjustment));
+      g_object_ref (sheet->hadjustment);
+      g_object_ref_sink (sheet->hadjustment);
 
-      g_signal_connect (G_OBJECT (sheet->hadjustment), "value_changed",
+      g_signal_connect (sheet->hadjustment, "value_changed",
                        G_CALLBACK (hadjustment_value_changed),
                        sheet);
     }
@@ -2454,61 +2417,54 @@ gtk_sheet_finalize (GObject * object)
 
   sheet = GTK_SHEET (object);
 
-  if (sheet->name)
-    {
-      g_free (sheet->name);
-      sheet->name = NULL;
-    }
-
   if (G_OBJECT_CLASS (parent_class)->finalize)
     (*G_OBJECT_CLASS (parent_class)->finalize) (object);
 }
 
 static void
-gtk_sheet_destroy (GtkObject * object)
+gtk_sheet_dispose  (GObject *object)
 {
-  GtkSheet *sheet;
+  GtkSheet *sheet = GTK_SHEET (object);
   GList *children;
 
   g_return_if_fail (object != NULL);
   g_return_if_fail (GTK_IS_SHEET (object));
 
-  sheet = GTK_SHEET (object);
+  if ( sheet->dispose_has_run )
+    return ;
 
-  /* destroy the entry */
-  if (sheet->sheet_entry && GTK_IS_WIDGET (sheet->sheet_entry))
-    {
-      gtk_widget_destroy (sheet->sheet_entry);
-      sheet->sheet_entry = NULL;
-    }
+  sheet->dispose_has_run = TRUE;
 
-  /* destroy the global selection button */
-  if (sheet->button && GTK_IS_WIDGET (sheet->button))
-    {
-      gtk_widget_destroy (sheet->button);
-      sheet->button = NULL;
-    }
+  if (sheet->model) g_object_unref (sheet->model);
+  if (sheet->row_geometry) g_object_unref (sheet->row_geometry);
+  if (sheet->column_geometry) g_object_unref (sheet->column_geometry);
+
+  g_object_unref (sheet->entry_container);
+  sheet->entry_container = NULL;
+
+  g_object_unref (sheet->button);
+  sheet->button = NULL;
 
   /* unref adjustments */
   if (sheet->hadjustment)
     {
-      g_signal_handlers_disconnect_matched (G_OBJECT (sheet->hadjustment),
+      g_signal_handlers_disconnect_matched (sheet->hadjustment,
                                            G_SIGNAL_MATCH_DATA,
                                            0, 0, 0, 0,
                                            sheet);
 
-      g_object_unref (G_OBJECT (sheet->hadjustment));
+      g_object_unref (sheet->hadjustment);
       sheet->hadjustment = NULL;
     }
 
   if (sheet->vadjustment)
     {
-      g_signal_handlers_disconnect_matched (G_OBJECT (sheet->vadjustment),
+      g_signal_handlers_disconnect_matched (sheet->vadjustment,
                                            G_SIGNAL_MATCH_DATA,
                                            0, 0, 0, 0,
                                            sheet);
 
-      g_object_unref (G_OBJECT (sheet->vadjustment));
+      g_object_unref (sheet->vadjustment);
 
       sheet->vadjustment = NULL;
     }
@@ -2523,8 +2479,8 @@ gtk_sheet_destroy (GtkObject * object)
     }
   sheet->children = NULL;
 
-  if (GTK_OBJECT_CLASS (parent_class)->destroy)
-    (*GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+  if (G_OBJECT_CLASS (parent_class)->dispose)
+    (*G_OBJECT_CLASS (parent_class)->dispose) (object);
 }
 
 static void
@@ -2556,7 +2512,6 @@ gtk_sheet_realize (GtkWidget * widget)
   gint attributes_mask;
   GdkGCValues values, auxvalues;
   GdkColormap *colormap;
-  gchar *name;
   GtkSheetChild *child;
   GList *children;
 
@@ -2643,48 +2598,37 @@ gtk_sheet_realize (GtkWidget * widget)
 
   /* GCs */
   if (sheet->fg_gc)
-    gdk_gc_unref (sheet->fg_gc);
+    g_object_unref (sheet->fg_gc);
   if (sheet->bg_gc)
-    gdk_gc_unref (sheet->bg_gc);
+    g_object_unref (sheet->bg_gc);
   sheet->fg_gc = gdk_gc_new (widget->window);
   sheet->bg_gc = gdk_gc_new (widget->window);
 
   colormap = gtk_widget_get_colormap (widget);
 
-  gdk_color_white (colormap, &widget->style->white);
-  gdk_color_black (colormap, &widget->style->black);
-
   gdk_gc_get_values (sheet->fg_gc, &auxvalues);
 
   values.foreground = widget->style->white;
   values.function = GDK_INVERT;
   values.subwindow_mode = GDK_INCLUDE_INFERIORS;
   if (sheet->xor_gc)
-    gdk_gc_unref (sheet->xor_gc);
+    g_object_unref (sheet->xor_gc);
   sheet->xor_gc = gdk_gc_new_with_values (widget->window,
                                          &values,
                                          GDK_GC_FOREGROUND |
                                          GDK_GC_FUNCTION |
                                          GDK_GC_SUBWINDOW);
 
-  if (sheet->sheet_entry->parent)
-    {
-      gtk_widget_ref (sheet->sheet_entry);
-      gtk_widget_unparent (sheet->sheet_entry);
-    }
-  gtk_widget_set_parent_window (sheet->sheet_entry, sheet->sheet_window);
-  gtk_widget_set_parent (sheet->sheet_entry, GTK_WIDGET (sheet));
 
-  if (sheet->button && sheet->button->parent)
-    {
-      gtk_widget_ref (sheet->button);
-      gtk_widget_unparent (sheet->button);
-    }
+  gtk_widget_set_parent_window (sheet->entry_widget, sheet->sheet_window);
+  gtk_widget_set_parent (sheet->entry_widget, GTK_WIDGET (sheet));
+
   gtk_widget_set_parent_window (sheet->button, sheet->sheet_window);
   gtk_widget_set_parent (sheet->button, GTK_WIDGET (sheet));
 
-  if (!sheet->cursor_drag)
-    sheet->cursor_drag = gdk_cursor_new (GDK_PLUS);
+
+  gdk_cursor_unref (sheet->cursor_drag);
+  sheet->cursor_drag = gdk_cursor_new (GDK_PLUS);
 
   if (sheet->column_titles_visible)
     gdk_window_show (sheet->column_title_window);
@@ -2694,11 +2638,6 @@ gtk_sheet_realize (GtkWidget * widget)
   size_allocate_row_title_buttons (sheet);
   size_allocate_column_title_buttons (sheet);
 
-  name = g_strdup (sheet->name);
-  gtk_sheet_set_title (sheet, name);
-
-  g_free (name);
-
   children = sheet->children;
   while (children)
     {
@@ -2716,7 +2655,9 @@ create_global_button (GtkSheet *sheet)
 {
   sheet->button = gtk_button_new_with_label (" ");
 
-  g_signal_connect (G_OBJECT (sheet->button),
+  g_object_ref_sink (sheet->button);
+
+  g_signal_connect (sheet->button,
                    "pressed",
                    G_CALLBACK (global_button_clicked),
                    sheet);
@@ -2761,11 +2702,11 @@ gtk_sheet_unrealize (GtkWidget * widget)
 
   sheet = GTK_SHEET (widget);
 
-  gdk_cursor_destroy (sheet->cursor_drag);
+  gdk_cursor_unref (sheet->cursor_drag);
 
-  gdk_gc_destroy (sheet->xor_gc);
-  gdk_gc_destroy (sheet->fg_gc);
-  gdk_gc_destroy (sheet->bg_gc);
+  g_object_unref (sheet->xor_gc);
+  g_object_unref (sheet->fg_gc);
+  g_object_unref (sheet->bg_gc);
 
   gdk_window_destroy (sheet->sheet_window);
   gdk_window_destroy (sheet->column_title_window);
@@ -2779,11 +2720,14 @@ gtk_sheet_unrealize (GtkWidget * widget)
 
   sheet->column_title_window = NULL;
   sheet->sheet_window = NULL;
-  sheet->cursor_drag = NULL;
   sheet->xor_gc = NULL;
   sheet->fg_gc = NULL;
   sheet->bg_gc = NULL;
 
+  gtk_widget_unparent (sheet->entry_widget);
+  if (sheet->button != NULL)
+    gtk_widget_unparent (sheet->button);
+
   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 }
@@ -2791,23 +2735,18 @@ gtk_sheet_unrealize (GtkWidget * widget)
 static void
 gtk_sheet_map (GtkWidget * widget)
 {
-  GtkSheet *sheet;
+  GtkSheet *sheet = GTK_SHEET (widget);
   GtkSheetChild *child;
   GList *children;
 
   g_return_if_fail (widget != NULL);
   g_return_if_fail (GTK_IS_SHEET (widget));
 
-  sheet = GTK_SHEET (widget);
-
   if (!GTK_WIDGET_MAPPED (widget))
     {
       GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 
-      if (!sheet->cursor_drag) sheet->cursor_drag = gdk_cursor_new (GDK_PLUS);
-
       gdk_window_show (widget->window);
-
       gdk_window_show (sheet->sheet_window);
 
       if (sheet->column_titles_visible)
@@ -2821,13 +2760,12 @@ gtk_sheet_map (GtkWidget * widget)
          gdk_window_show (sheet->row_title_window);
        }
 
-      if (!GTK_WIDGET_MAPPED (sheet->sheet_entry)
-         && ! gtk_sheet_locked (sheet)
+      if (!GTK_WIDGET_MAPPED (sheet->entry_widget)
          && sheet->active_cell.row >= 0
          && sheet->active_cell.col >= 0 )
        {
-         gtk_widget_show (sheet->sheet_entry);
-         gtk_widget_map (sheet->sheet_entry);
+         gtk_widget_show (sheet->entry_widget);
+         gtk_widget_map (sheet->entry_widget);
        }
 
       if (GTK_WIDGET_VISIBLE (sheet->button) &&
@@ -2887,8 +2825,8 @@ gtk_sheet_unmap (GtkWidget * widget)
        gdk_window_hide (sheet->row_title_window);
       gdk_window_hide (widget->window);
 
-      if (GTK_WIDGET_MAPPED (sheet->sheet_entry))
-       gtk_widget_unmap (sheet->sheet_entry);
+      if (GTK_WIDGET_MAPPED (sheet->entry_widget))
+       gtk_widget_unmap (sheet->entry_widget);
 
       if (GTK_WIDGET_MAPPED (sheet->button))
        gtk_widget_unmap (sheet->button);
@@ -3060,18 +2998,18 @@ gtk_sheet_cell_draw_label (GtkSheet *sheet, gint row, gint col)
     case GTK_JUSTIFY_RIGHT:
       size = area.width;
       area.x +=area.width;
-       {
-         for (i = col - 1; i >= MIN_VISIBLE_COLUMN (sheet); i--)
-           {
-             if ( !gtk_sheet_cell_empty (sheet, row, i)) break;
-             if (size >= text_width + CELLOFFSET) break;
-             size +=xxx_column_width (sheet, i);
-             xxx_column_set_right_column (sheet, i,
-                                          MAX (col,
-                                               xxx_column_right_column (sheet, i)));
-           }
-         area.width = size;
-       }
+      {
+       for (i = col - 1; i >= MIN_VISIBLE_COLUMN (sheet); i--)
+         {
+           if ( !gtk_sheet_cell_empty (sheet, row, i)) break;
+           if (size >= text_width + CELLOFFSET) break;
+           size +=xxx_column_width (sheet, i);
+           xxx_column_set_right_column (sheet, i,
+                                        MAX (col,
+                                             xxx_column_right_column (sheet, i)));
+         }
+       area.width = size;
+      }
       area.x -= size;
       xoffset += area.width - text_width - 2 * CELLOFFSET -
        attributes.border.width / 2;
@@ -3080,28 +3018,28 @@ gtk_sheet_cell_draw_label (GtkSheet *sheet, gint row, gint col)
       sizel = area.width / 2;
       sizer = area.width / 2;
       area.x += area.width / 2;
-       {
-         for (i = col + 1; i <= MAX_VISIBLE_COLUMN (sheet); i++)
-           {
-             if ( ! gtk_sheet_cell_empty (sheet, row, i)) break;
-             if (sizer >= text_width / 2) break;
-             sizer += xxx_column_width (sheet, i);
-             xxx_column_set_left_column (sheet, i,
-                                         MIN (
-                                              col,
-                                              xxx_column_left_column (sheet, i)));
-           }
-         for (i = col - 1; i >= MIN_VISIBLE_COLUMN (sheet); i--)
-           {
-             if ( ! gtk_sheet_cell_empty (sheet, row, i)) break;
-             if (sizel >= text_width / 2) break;
-             sizel +=xxx_column_width (sheet, i);
-             xxx_column_set_right_column (sheet, i,
-                                          MAX (col,
-                                               xxx_column_right_column (sheet, i)));
-           }
-         size = MIN (sizel, sizer);
-       }
+      {
+       for (i = col + 1; i <= MAX_VISIBLE_COLUMN (sheet); i++)
+         {
+           if ( ! gtk_sheet_cell_empty (sheet, row, i)) break;
+           if (sizer >= text_width / 2) break;
+           sizer += xxx_column_width (sheet, i);
+           xxx_column_set_left_column (sheet, i,
+                                       MIN (
+                                            col,
+                                            xxx_column_left_column (sheet, i)));
+         }
+       for (i = col - 1; i >= MIN_VISIBLE_COLUMN (sheet); i--)
+         {
+           if ( ! gtk_sheet_cell_empty (sheet, row, i)) break;
+           if (sizel >= text_width / 2) break;
+           sizel +=xxx_column_width (sheet, i);
+           xxx_column_set_right_column (sheet, i,
+                                        MAX (col,
+                                             xxx_column_right_column (sheet, i)));
+         }
+       size = MIN (sizel, sizer);
+      }
       area.x -= sizel;
       xoffset += sizel - text_width / 2 - CELLOFFSET;
       area.width = sizel + sizer;
@@ -3109,20 +3047,20 @@ gtk_sheet_cell_draw_label (GtkSheet *sheet, gint row, gint col)
     case GTK_JUSTIFY_LEFT:
     default:
       size = area.width;
-       {
-         for (i = col + 1; i <= MAX_VISIBLE_COLUMN (sheet); i++)
-           {
-             if (! gtk_sheet_cell_empty (sheet, row, i)) break;
-             if (size >= text_width + CELLOFFSET) break;
-             size +=xxx_column_width (sheet, i);
-             xxx_column_set_left_column (sheet, i,
-                                         MIN (
-                                              col,
-                                              xxx_column_left_column (sheet, i)));
-
-           }
-         area.width = size;
-       }
+      {
+       for (i = col + 1; i <= MAX_VISIBLE_COLUMN (sheet); i++)
+         {
+           if (! gtk_sheet_cell_empty (sheet, row, i)) break;
+           if (size >= text_width + CELLOFFSET) break;
+           size +=xxx_column_width (sheet, i);
+           xxx_column_set_left_column (sheet, i,
+                                       MIN (
+                                            col,
+                                            xxx_column_left_column (sheet, i)));
+
+         }
+       area.width = size;
+      }
       xoffset += attributes.border.width / 2;
       break;
     }
@@ -3136,9 +3074,9 @@ gtk_sheet_cell_draw_label (GtkSheet *sheet, gint row, gint col)
                   layout);
 
   gdk_gc_set_clip_rectangle (fg_gc, NULL);
-  g_object_unref (G_OBJECT (layout));
+  g_object_unref (layout);
 
-  gdk_draw_pixmap (sheet->sheet_window,
+  gdk_draw_drawable (sheet->sheet_window,
                   GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                   sheet->pixmap,
                   area.x,
@@ -3205,7 +3143,7 @@ gtk_sheet_range_draw (GtkSheet *sheet, const GtkSheetRange *range)
                          sheet->sheet_window_width - area.x,
                          sheet->sheet_window_height);
 
-      gdk_draw_pixmap (sheet->sheet_window,
+      gdk_draw_drawable (sheet->sheet_window,
                       GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                       sheet->pixmap,
                       area.x,
@@ -3232,7 +3170,7 @@ gtk_sheet_range_draw (GtkSheet *sheet, const GtkSheetRange *range)
                          sheet->sheet_window_width,
                          sheet->sheet_window_height - area.y);
 
-      gdk_draw_pixmap (sheet->sheet_window,
+      gdk_draw_drawable (sheet->sheet_window,
                       GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                       sheet->pixmap,
                       area.x,
@@ -3378,7 +3316,7 @@ gtk_sheet_draw_backing_pixmap (GtkSheet *sheet, GtkSheetRange range)
   if (range.rowi == yyy_row_count (sheet) - 1)
     height = sheet->sheet_window_height - y;
 
-  gdk_draw_pixmap (sheet->sheet_window,
+  gdk_draw_drawable (sheet->sheet_window,
                   GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                   sheet->pixmap,
                   x,
@@ -3478,7 +3416,7 @@ gtk_sheet_set_cell (GtkSheet *sheet, gint row, gint col,
     }
 
   if ( changed )
-    g_signal_emit (G_OBJECT (sheet), sheet_signals[CHANGED], 0, row, col);
+    g_signal_emit (sheet, sheet_signals[CHANGED], 0, row, col);
 
 }
 
@@ -3518,10 +3456,6 @@ gtk_sheet_real_cell_clear (GtkSheet *sheet, gint row, gint column)
   if (old_text && strlen (old_text) > 0 )
     {
       g_sheet_model_datum_clear (model, row, column);
-
-      if (GTK_IS_OBJECT (sheet) && G_OBJECT (sheet)->ref_count > 0)
-       g_signal_emit (G_OBJECT (sheet), sheet_signals[CLEAR_CELL], 0,
-                      row, column);
     }
 
   dispose_string (sheet, old_text);
@@ -3728,9 +3662,7 @@ gtk_sheet_set_active_cell (GtkSheet *sheet, gint row, gint column)
     return FALSE;
 
   if (GTK_WIDGET_REALIZED (GTK_WIDGET (sheet)))
-    {
-      if (!gtk_sheet_deactivate_cell (sheet)) return FALSE;
-    }
+    gtk_sheet_deactivate_cell (sheet);
 
   sheet->active_cell.row = row;
   sheet->active_cell.col = column;
@@ -3781,8 +3713,8 @@ gtk_sheet_entry_changed (GtkWidget *widget, gpointer data)
 
   if (row < 0 || col < 0) return;
 
-  sheet->active_cell.row =1;
-  sheet->active_cell.col =1;
+  sheet->active_cell.row = -1;
+  sheet->active_cell.col = -1;
 
   text = gtk_entry_get_text (GTK_ENTRY (gtk_sheet_get_entry (sheet)));
 
@@ -3803,27 +3735,24 @@ gtk_sheet_entry_changed (GtkWidget *widget, gpointer data)
 }
 
 
-static gboolean
+static void
 gtk_sheet_deactivate_cell (GtkSheet *sheet)
 {
-  gboolean veto = TRUE;
-
-  g_return_val_if_fail (sheet != NULL, FALSE);
-  g_return_val_if_fail (GTK_IS_SHEET (sheet), FALSE);
+  g_return_if_fail (sheet != NULL);
+  g_return_if_fail (GTK_IS_SHEET (sheet));
 
-  if (!GTK_WIDGET_REALIZED (GTK_WIDGET (sheet))) return FALSE;
-  if (sheet->state != GTK_SHEET_NORMAL) return FALSE;
+  if (!GTK_WIDGET_REALIZED (GTK_WIDGET (sheet))) return ;
+  if (sheet->state != GTK_SHEET_NORMAL) return ;
 
-  _gtkextra_signal_emit (GTK_OBJECT (sheet), sheet_signals[DEACTIVATE],
-                        sheet->active_cell.row,
-                        sheet->active_cell.col, &veto);
+  if ( sheet->active_cell.row == -1 || sheet->active_cell.col == -1 )
+    return ;
 
-  if (!veto) return FALSE;
+  g_signal_emit (sheet, sheet_signals[DEACTIVATE], 0,
+                sheet->active_cell.row,
+                sheet->active_cell.col);
 
-  if ( sheet->active_cell.row == -1 || sheet->active_cell.col == -1 )
-    return TRUE;
 
-  g_signal_handlers_disconnect_by_func (G_OBJECT (gtk_sheet_get_entry (sheet)),
+  g_signal_handlers_disconnect_by_func (gtk_sheet_get_entry (sheet),
                                        G_CALLBACK (gtk_sheet_entry_changed),
                                        sheet);
 
@@ -3836,8 +3765,6 @@ gtk_sheet_deactivate_cell (GtkSheet *sheet)
       GTK_SHEET_UNSET_FLAGS (sheet, GTK_SHEET_REDRAW_PENDING);
       gtk_sheet_range_draw (sheet, NULL);
     }
-
-  return TRUE;
 }
 
 static void
@@ -3863,24 +3790,14 @@ gtk_sheet_hide_active_cell (GtkSheet *sheet)
   gtk_sheet_get_attributes (sheet, row, col, &attributes);
   justification = attributes.justification;
 
-  if (text && strlen (text) != 0)
-    {
-      gtk_sheet_set_cell (sheet, row, col, justification, text);
-      g_signal_emit (G_OBJECT (sheet), sheet_signals[SET_CELL], 0, row, col);
-    }
-  else
-    {
-      gtk_sheet_cell_clear (sheet, row, col);
-    }
-
   row = sheet->active_cell.row;
   col = sheet->active_cell.col;
 
-  gtk_widget_hide (sheet->sheet_entry);
-  gtk_widget_unmap (sheet->sheet_entry);
+  gtk_widget_hide (sheet->entry_widget);
+  gtk_widget_unmap (sheet->entry_widget);
 
   if (row != -1 && col != -1)
-    gdk_draw_pixmap (sheet->sheet_window,
+    gdk_draw_drawable (sheet->sheet_window,
                     GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                     sheet->pixmap,
                     COLUMN_LEFT_XPIXEL (sheet, col)- 1,
@@ -3892,7 +3809,7 @@ gtk_sheet_hide_active_cell (GtkSheet *sheet)
 
   gtk_widget_grab_focus (GTK_WIDGET (sheet));
 
-  GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (sheet->sheet_entry), GTK_VISIBLE);
+  GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (sheet->entry_widget), GTK_VISIBLE);
 
 }
 
@@ -3905,7 +3822,8 @@ gtk_sheet_activate_cell (GtkSheet *sheet, gint row, gint col)
   g_return_val_if_fail (GTK_IS_SHEET (sheet), FALSE);
 
   if (row < 0 || col < 0) return FALSE;
-  if (row >= yyy_row_count (sheet) || col >= xxx_column_count (sheet))
+
+  if ( row > yyy_row_count (sheet) || col > xxx_column_count (sheet))
     return FALSE;
 
   if (!veto) return FALSE;
@@ -3928,8 +3846,7 @@ gtk_sheet_activate_cell (GtkSheet *sheet, gint row, gint col)
 
   gtk_sheet_show_active_cell (sheet);
 
-
-  g_signal_connect (G_OBJECT (gtk_sheet_get_entry (sheet)),
+  g_signal_connect (gtk_sheet_get_entry (sheet),
                    "changed",
                    G_CALLBACK (gtk_sheet_entry_changed),
                    sheet);
@@ -3963,7 +3880,7 @@ gtk_sheet_show_active_cell (GtkSheet *sheet)
   if (sheet->state != GTK_SHEET_NORMAL) return;
   if (GTK_SHEET_IN_SELECTION (sheet)) return;
 
-  GTK_WIDGET_SET_FLAGS (GTK_WIDGET (sheet->sheet_entry), GTK_VISIBLE);
+  GTK_WIDGET_SET_FLAGS (GTK_WIDGET (sheet->entry_widget), GTK_VISIBLE);
 
   sheet_entry = GTK_ENTRY (gtk_sheet_get_entry (sheet));
 
@@ -3980,10 +3897,6 @@ gtk_sheet_show_active_cell (GtkSheet *sheet)
 
   gtk_entry_set_visibility (GTK_ENTRY (sheet_entry), attributes.is_visible);
 
-  if (gtk_sheet_locked (sheet) || !attributes.is_editable)
-    gtk_editable_set_editable (GTK_EDITABLE (sheet_entry), FALSE);
-  else
-    gtk_editable_set_editable (GTK_EDITABLE (sheet_entry), TRUE);
 
   /*** Added by John Gotts. Mar 25, 2005 *********/
   old_text = gtk_entry_get_text (GTK_ENTRY (sheet_entry));
@@ -3998,7 +3911,7 @@ gtk_sheet_show_active_cell (GtkSheet *sheet)
   gtk_sheet_entry_set_max_size (sheet);
   gtk_sheet_size_allocate_entry (sheet);
 
-  gtk_widget_map (sheet->sheet_entry);
+  gtk_widget_map (sheet->entry_widget);
 
   gtk_widget_grab_focus (GTK_WIDGET (sheet_entry));
 
@@ -4052,8 +3965,8 @@ gtk_sheet_make_backing_pixmap (GtkSheet *sheet, guint width, guint height)
   else
     {
       /* reallocate if sizes don't match */
-      gdk_window_get_size (sheet->pixmap,
-                          &pixmap_width, &pixmap_height);
+      gdk_drawable_get_size (sheet->pixmap,
+                            &pixmap_width, &pixmap_height);
       if ( (pixmap_width != width) || (pixmap_height != height))
        {
          g_object_unref (sheet->pixmap);
@@ -4142,7 +4055,7 @@ gtk_sheet_new_selection (GtkSheet *sheet, GtkSheetRange *range)
                    }
                  if (j == sheet->range.coli) width = width + 3;
 
-                 gdk_draw_pixmap (sheet->sheet_window,
+                 gdk_draw_drawable (sheet->sheet_window,
                                   GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                                   sheet->pixmap,
                                   x + 1,
@@ -4216,7 +4129,7 @@ gtk_sheet_new_selection (GtkSheet *sheet, GtkSheetRange *range)
                }
              if (j == sheet->range.coli) width = width + 3;
 
-             gdk_draw_pixmap (sheet->sheet_window,
+             gdk_draw_drawable (sheet->sheet_window,
                               GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                               sheet->pixmap,
                               x + 1,
@@ -4380,7 +4293,7 @@ gtk_sheet_draw_border (GtkSheet *sheet, GtkSheetRange new_range)
 
   gdk_gc_set_clip_rectangle (sheet->xor_gc, &area);
 
-  for (i =1; i <= 1; ++i)
+  for (i = -1; i <= 1; ++i)
     gdk_draw_rectangle (sheet->sheet_window,
                        sheet->xor_gc,
                        FALSE,
@@ -4405,7 +4318,7 @@ gtk_sheet_draw_corners (GtkSheet *sheet, GtkSheetRange range)
     {
       x = COLUMN_LEFT_XPIXEL (sheet, range.col0);
       y = ROW_TOP_YPIXEL (sheet, range.row0);
-      gdk_draw_pixmap (sheet->sheet_window,
+      gdk_draw_drawable (sheet->sheet_window,
                       GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                       sheet->pixmap,
                       x - 1,
@@ -4433,7 +4346,7 @@ gtk_sheet_draw_corners (GtkSheet *sheet, GtkSheetRange range)
          y = ROW_TOP_YPIXEL (sheet, MIN_VISIBLE_ROW (sheet))+3;
          width = 3;
        }
-      gdk_draw_pixmap (sheet->sheet_window,
+      gdk_draw_drawable (sheet->sheet_window,
                       GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                       sheet->pixmap,
                       x - width,
@@ -4461,7 +4374,7 @@ gtk_sheet_draw_corners (GtkSheet *sheet, GtkSheetRange range)
          x = COLUMN_LEFT_XPIXEL (sheet, MIN_VISIBLE_COLUMN (sheet))+3;
          width = 3;
        }
-      gdk_draw_pixmap (sheet->sheet_window,
+      gdk_draw_drawable (sheet->sheet_window,
                       GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                       sheet->pixmap,
                       x - width,
@@ -4486,7 +4399,7 @@ gtk_sheet_draw_corners (GtkSheet *sheet, GtkSheetRange range)
       width = 1;
       if (sheet->state == GTK_SHEET_RANGE_SELECTED) width = 3;
       if (sheet->state == GTK_SHEET_NORMAL) width = 3;
-      gdk_draw_pixmap (sheet->sheet_window,
+      gdk_draw_drawable (sheet->sheet_window,
                       GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                       sheet->pixmap,
                       x - width,
@@ -4536,7 +4449,7 @@ gtk_sheet_real_select_range (GtkSheet * sheet,
 
   gtk_sheet_update_primary_selection (sheet);
 
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[SELECT_RANGE], 0, &sheet->range);
+  g_signal_emit (sheet, sheet_signals[SELECT_RANGE], 0, &sheet->range);
 }
 
 
@@ -4560,16 +4473,10 @@ gtk_sheet_select_range (GtkSheet * sheet, const GtkSheetRange *range)
   if (range->col0 < 0 || range->coli < 0) return;
 
 
-  if ( gtk_sheet_locked (sheet)) return ;
-
   if (sheet->state != GTK_SHEET_NORMAL)
     gtk_sheet_real_unselect_range (sheet, NULL);
   else
-    {
-      gboolean veto = TRUE;
-      veto = gtk_sheet_deactivate_cell (sheet);
-      if (!veto) return;
-    }
+    gtk_sheet_deactivate_cell (sheet);
 
   sheet->range.row0 = range->row0;
   sheet->range.rowi = range->rowi;
@@ -4588,6 +4495,9 @@ gtk_sheet_select_range (GtkSheet * sheet, const GtkSheetRange *range)
 void
 gtk_sheet_unselect_range (GtkSheet * sheet)
 {
+  if (! GTK_WIDGET_REALIZED (GTK_WIDGET (sheet)))
+    return;
+
   gtk_sheet_real_unselect_range (sheet, NULL);
   sheet->state = GTK_STATE_NORMAL;
 
@@ -4609,8 +4519,8 @@ gtk_sheet_real_unselect_range (GtkSheet * sheet,
   if (range->row0 < 0 || range->rowi < 0) return;
   if (range->col0 < 0 || range->coli < 0) return;
 
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[SELECT_COLUMN], 0, -1);
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[SELECT_ROW], 0, -1);
+  g_signal_emit (sheet, sheet_signals[SELECT_COLUMN], 0, -1);
+  g_signal_emit (sheet, sheet_signals[SELECT_ROW], 0, -1);
 
   if (gtk_sheet_range_isvisible (sheet, *range))
     gtk_sheet_draw_backing_pixmap (sheet, *range);
@@ -4682,11 +4592,7 @@ gtk_sheet_expose (GtkWidget * widget,
          if ((!GTK_SHEET_IN_XDRAG (sheet)) && (!GTK_SHEET_IN_YDRAG (sheet)))
            {
              if (sheet->state == GTK_SHEET_NORMAL)
-               {
-                 gtk_sheet_draw_active_cell (sheet);
-                 if (!GTK_SHEET_IN_SELECTION (sheet))
-                   gtk_widget_queue_draw (sheet->sheet_entry);
-               }
+               gtk_sheet_draw_active_cell (sheet);
            }
        }
     }
@@ -4728,23 +4634,23 @@ gtk_sheet_button_press (GtkWidget * widget,
 
   if (event->window == sheet->column_title_window)
     {
-      g_signal_emit (G_OBJECT (sheet),
+      g_signal_emit (sheet,
                     sheet_signals[BUTTON_EVENT_COLUMN], 0,
                     column, event);
 
       if ( event->type == GDK_2BUTTON_PRESS && event->button == 1)
-       g_signal_emit (G_OBJECT (sheet),
+       g_signal_emit (sheet,
                       sheet_signals[DOUBLE_CLICK_COLUMN], 0, column);
 
     }
   else if (event->window == sheet->row_title_window)
     {
-      g_signal_emit (G_OBJECT (sheet),
+      g_signal_emit (sheet,
                     sheet_signals[BUTTON_EVENT_ROW], 0,
                     row, event);
 
       if ( event->type == GDK_2BUTTON_PRESS && event->button == 1)
-       g_signal_emit (G_OBJECT (sheet),
+       g_signal_emit (sheet,
                       sheet_signals[DOUBLE_CLICK_ROW], 0, row);
     }
 
@@ -4831,7 +4737,7 @@ gtk_sheet_button_press (GtkWidget * widget,
            {
              row = sheet->active_cell.row;
              column = sheet->active_cell.col;
-             if (!gtk_sheet_deactivate_cell (sheet)) return FALSE;
+             gtk_sheet_deactivate_cell (sheet);
              sheet->active_cell.row = row;
              sheet->active_cell.col = column;
              sheet->drag_range = sheet->range;
@@ -4851,7 +4757,6 @@ gtk_sheet_button_press (GtkWidget * widget,
       else if (sheet->cursor_drag->type == GDK_TOP_LEFT_ARROW &&
               !GTK_SHEET_IN_SELECTION (sheet)
               && ! GTK_SHEET_IN_DRAG (sheet)
-              && ! gtk_sheet_locked (sheet)
               && sheet->active_cell.row >= 0
               && sheet->active_cell.col >= 0
               )
@@ -4860,7 +4765,7 @@ gtk_sheet_button_press (GtkWidget * widget,
            {
              row = sheet->active_cell.row;
              column = sheet->active_cell.col;
-             if (!gtk_sheet_deactivate_cell (sheet)) return FALSE;
+             gtk_sheet_deactivate_cell (sheet);
              sheet->active_cell.row = row;
              sheet->active_cell.col = column;
              sheet->drag_range = sheet->range;
@@ -4916,38 +4821,6 @@ gtk_sheet_button_press (GtkWidget * widget,
   return TRUE;
 }
 
-#if 0
-static gint
-gtk_sheet_scroll (gpointer data)
-{
-  GtkSheet *sheet;
-  gint x, y, row, column;
-  gint move;
-
-  sheet = GTK_SHEET (data);
-
-  GDK_THREADS_ENTER ();
-
-  gtk_widget_get_pointer (GTK_WIDGET (sheet), &x, &y);
-  gtk_sheet_get_pixel_info (sheet, x, y, &row, &column);
-
-  move = TRUE;
-
-  if (GTK_SHEET_IN_SELECTION (sheet))
-    gtk_sheet_extend_selection (sheet, row, column);
-
-  if (GTK_SHEET_IN_DRAG (sheet) || GTK_SHEET_IN_RESIZE (sheet))
-    {
-      move = gtk_sheet_move_query (sheet, row, column);
-      if (move) draw_xor_rectangle (sheet, sheet->drag_range);
-    }
-
-  GDK_THREADS_LEAVE ();
-
-  return TRUE;
-}
-#endif
-
 static void
 gtk_sheet_click_cell (GtkSheet *sheet, gint row, gint column, gboolean *veto)
 {
@@ -5017,11 +4890,7 @@ gtk_sheet_click_cell (GtkSheet *sheet, gint row, gint column, gboolean *veto)
        }
       else
        {
-         if (!gtk_sheet_deactivate_cell (sheet))
-           {
-             *veto = FALSE;
-             return;
-           }
+         gtk_sheet_deactivate_cell (sheet);
          gtk_sheet_activate_cell (sheet, row, column);
        }
 
@@ -5067,7 +4936,7 @@ gtk_sheet_button_release (GtkWidget * widget,
       gtk_sheet_set_column_width (sheet, sheet->drag_cell.col,
                                  new_column_width (sheet, sheet->drag_cell.col, &x));
       sheet->old_hadjustment = -1.;
-      g_signal_emit_by_name (G_OBJECT (sheet->hadjustment), "value_changed");
+      g_signal_emit_by_name (sheet->hadjustment, "value_changed");
       return TRUE;
     }
 
@@ -5081,7 +4950,7 @@ gtk_sheet_button_release (GtkWidget * widget,
 
       gtk_sheet_set_row_height (sheet, sheet->drag_cell.row, new_row_height (sheet, sheet->drag_cell.row, &y));
       sheet->old_vadjustment = -1.;
-      g_signal_emit_by_name (G_OBJECT (sheet->vadjustment), "value_changed");
+      g_signal_emit_by_name (sheet->vadjustment, "value_changed");
       return TRUE;
     }
 
@@ -5106,7 +4975,7 @@ gtk_sheet_button_release (GtkWidget * widget,
       old_range = sheet->range;
       sheet->range = sheet->drag_range;
       sheet->drag_range = old_range;
-      g_signal_emit (G_OBJECT (sheet), sheet_signals[MOVE_RANGE], 0,
+      g_signal_emit (sheet, sheet_signals[MOVE_RANGE], 0,
                     &sheet->drag_range, &sheet->range);
       gtk_sheet_select_range (sheet, &sheet->range);
     }
@@ -5137,7 +5006,7 @@ gtk_sheet_button_release (GtkWidget * widget,
       sheet->drag_range = old_range;
 
       if (sheet->state == GTK_STATE_NORMAL) sheet->state = GTK_SHEET_RANGE_SELECTED;
-      g_signal_emit (G_OBJECT (sheet), sheet_signals[RESIZE_RANGE], 0,
+      g_signal_emit (sheet, sheet_signals[RESIZE_RANGE], 0,
                     &sheet->drag_range, &sheet->range);
       gtk_sheet_select_range (sheet, &sheet->range);
     }
@@ -5362,7 +5231,7 @@ gtk_sheet_motion (GtkWidget * widget,
          new_cursor = GDK_SB_H_DOUBLE_ARROW;
          if (new_cursor != sheet->cursor_drag->type)
            {
-             gdk_cursor_destroy (sheet->cursor_drag);
+             gdk_cursor_unref (sheet->cursor_drag);
              sheet->cursor_drag = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW);
              gdk_window_set_cursor (sheet->column_title_window,
                                     sheet->cursor_drag);
@@ -5374,7 +5243,7 @@ gtk_sheet_motion (GtkWidget * widget,
          if (!GTK_SHEET_IN_XDRAG (sheet) &&
              new_cursor != sheet->cursor_drag->type)
            {
-             gdk_cursor_destroy (sheet->cursor_drag);
+             gdk_cursor_unref (sheet->cursor_drag);
              sheet->cursor_drag = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
              gdk_window_set_cursor (sheet->column_title_window,
                                     sheet->cursor_drag);
@@ -5391,7 +5260,7 @@ gtk_sheet_motion (GtkWidget * widget,
          new_cursor = GDK_SB_V_DOUBLE_ARROW;
          if (new_cursor != sheet->cursor_drag->type)
            {
-             gdk_cursor_destroy (sheet->cursor_drag);
+             gdk_cursor_unref (sheet->cursor_drag);
              sheet->cursor_drag = gdk_cursor_new (GDK_SB_V_DOUBLE_ARROW);
              gdk_window_set_cursor (sheet->row_title_window, sheet->cursor_drag);
            }
@@ -5402,7 +5271,7 @@ gtk_sheet_motion (GtkWidget * widget,
          if (!GTK_SHEET_IN_YDRAG (sheet) &&
              new_cursor != sheet->cursor_drag->type)
            {
-             gdk_cursor_destroy (sheet->cursor_drag);
+             gdk_cursor_unref (sheet->cursor_drag);
              sheet->cursor_drag = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
              gdk_window_set_cursor (sheet->row_title_window, sheet->cursor_drag);
            }
@@ -5417,7 +5286,7 @@ gtk_sheet_motion (GtkWidget * widget,
        !GTK_SHEET_IN_RESIZE (sheet) &&
        new_cursor != sheet->cursor_drag->type)
     {
-      gdk_cursor_destroy (sheet->cursor_drag);
+      gdk_cursor_unref (sheet->cursor_drag);
       sheet->cursor_drag = gdk_cursor_new (GDK_PLUS);
       gdk_window_set_cursor (sheet->sheet_window, sheet->cursor_drag);
     }
@@ -5428,7 +5297,7 @@ gtk_sheet_motion (GtkWidget * widget,
 
        new_cursor != sheet->cursor_drag->type)
     {
-      gdk_cursor_destroy (sheet->cursor_drag);
+      gdk_cursor_unref (sheet->cursor_drag);
       sheet->cursor_drag = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
       gdk_window_set_cursor (sheet->sheet_window, sheet->cursor_drag);
     }
@@ -5441,7 +5310,7 @@ gtk_sheet_motion (GtkWidget * widget,
        GTK_SHEET_IN_RESIZE (sheet)) &&
        new_cursor != sheet->cursor_drag->type)
     {
-      gdk_cursor_destroy (sheet->cursor_drag);
+      gdk_cursor_unref (sheet->cursor_drag);
       sheet->cursor_drag = gdk_cursor_new (GDK_SIZING);
       gdk_window_set_cursor (sheet->sheet_window, sheet->cursor_drag);
     }
@@ -5609,8 +5478,8 @@ gtk_sheet_move_query (GtkSheet *sheet, gint row, gint column)
 
   row_move = FALSE;
   column_move = FALSE;
-  row_align =1.;
-  col_align =1.;
+  row_align = -1.;
+  col_align = -1.;
 
   height = sheet->sheet_window_height;
   width = sheet->sheet_window_width;
@@ -5618,7 +5487,7 @@ gtk_sheet_move_query (GtkSheet *sheet, gint row, gint column)
   if (row >= MAX_VISIBLE_ROW (sheet) && sheet->state != GTK_SHEET_COLUMN_SELECTED)
     {
       row_align = 1.;
-      new_row = MIN (yyy_row_count (sheet), row + 1);
+      new_row = MIN (yyy_row_count (sheet) - 1, row + 1);
       row_move = TRUE;
       if (MAX_VISIBLE_ROW (sheet) == yyy_row_count (sheet) - 1 &&
          ROW_TOP_YPIXEL (sheet, yyy_row_count (sheet)- 1) +
@@ -5695,7 +5564,7 @@ gtk_sheet_extend_selection (GtkSheet *sheet, gint row, gint column)
       sheet->range.row0 = r;
       sheet->range.coli = c;
       sheet->range.rowi = r;
-      gdk_draw_pixmap (sheet->sheet_window,
+      gdk_draw_drawable (sheet->sheet_window,
                       GTK_WIDGET (sheet)->style->fg_gc[GTK_STATE_NORMAL],
                       sheet->pixmap,
                       COLUMN_LEFT_XPIXEL (sheet, c)- 1,
@@ -5729,7 +5598,7 @@ gtk_sheet_entry_key_press (GtkWidget *widget,
                           GdkEventKey *key)
 {
   gboolean focus;
-  g_signal_emit_by_name (G_OBJECT (widget), "key_press_event", key, &focus);
+  g_signal_emit_by_name (widget, "key_press_event", key, &focus);
   return focus;
 }
 
@@ -5764,7 +5633,7 @@ gtk_sheet_key_press (GtkWidget *widget,
       if (sheet->state == GTK_SHEET_NORMAL &&
          !GTK_SHEET_IN_SELECTION (sheet))
        g_signal_stop_emission_by_name (gtk_sheet_get_entry (sheet),
-                                        "key-press-event");
+                                       "key-press-event");
       row = sheet->active_cell.row;
       col = sheet->active_cell.col;
       if (sheet->state == GTK_SHEET_COLUMN_SELECTED)
@@ -5959,12 +5828,12 @@ gtk_sheet_key_press (GtkWidget *widget,
       break;
     case GDK_Home:
       row = 0;
-      while (!yyy_row_is_visible (sheet, row) && row < yyy_row_count (sheet)- 1) row++;
+      while (!yyy_row_is_visible (sheet, row) && row < yyy_row_count (sheet) - 1) row++;
       gtk_sheet_click_cell (sheet, row, sheet->active_cell.col, &veto);
       extend_selection = FALSE;
       break;
     case GDK_End:
-      row = yyy_row_count (sheet)- 1;
+      row = yyy_row_count (sheet) - 1;
       while (!yyy_row_is_visible (sheet, row) && row > 0) row--;
       gtk_sheet_click_cell (sheet, row, sheet->active_cell.col, &veto);
       extend_selection = FALSE;
@@ -6160,6 +6029,8 @@ size_allocate_column_title_buttons (GtkSheet * sheet)
 
   if (!GTK_WIDGET_DRAWABLE (sheet)) return;
 
+  size_allocate_global_button (sheet);
+
   for (i = MIN_VISIBLE_COLUMN (sheet); i <= MAX_VISIBLE_COLUMN (sheet); i++)
     gtk_sheet_column_title_button_draw (sheet, i);
 }
@@ -6201,6 +6072,8 @@ size_allocate_row_title_buttons (GtkSheet * sheet)
 
   if (!GTK_WIDGET_DRAWABLE (sheet)) return;
 
+  size_allocate_global_button (sheet);
+
   for (i = MIN_VISIBLE_ROW (sheet); i <= MAX_VISIBLE_ROW (sheet); i++)
     {
       if ( i >= yyy_row_count (sheet))
@@ -6231,7 +6104,7 @@ gtk_sheet_size_allocate_entry (GtkSheet *sheet)
                                   &attributes) )
     return ;
 
-  if ( GTK_WIDGET_REALIZED (sheet->sheet_entry) )
+  if ( GTK_WIDGET_REALIZED (sheet->entry_widget) )
     {
       if (!GTK_WIDGET (sheet_entry)->style)
        gtk_widget_ensure_style (GTK_WIDGET (sheet_entry));
@@ -6251,12 +6124,12 @@ gtk_sheet_size_allocate_entry (GtkSheet *sheet)
       style->font_desc = pango_font_description_copy (attributes.font_desc);
 
       GTK_WIDGET (sheet_entry)->style = style;
-      gtk_widget_size_request (sheet->sheet_entry, NULL);
+      gtk_widget_size_request (sheet->entry_widget, NULL);
       GTK_WIDGET (sheet_entry)->style = previous_style;
 
       if (style != previous_style)
        {
-         if (!GTK_IS_ITEM_ENTRY (sheet->sheet_entry))
+         if (!GTK_IS_ITEM_ENTRY (sheet->entry_widget))
            {
              style->bg[GTK_STATE_NORMAL] = previous_style->bg[GTK_STATE_NORMAL];
              style->fg[GTK_STATE_NORMAL] = previous_style->fg[GTK_STATE_NORMAL];
@@ -6291,7 +6164,7 @@ gtk_sheet_size_allocate_entry (GtkSheet *sheet)
   shentry_allocation.width = column_width;
   shentry_allocation.height = yyy_row_height (sheet, sheet->active_cell.row);
 
-  if (GTK_IS_ITEM_ENTRY (sheet->sheet_entry))
+  if (GTK_IS_ITEM_ENTRY (sheet->entry_widget))
     {
       shentry_allocation.height -= 2 * CELLOFFSET;
       shentry_allocation.y += CELLOFFSET;
@@ -6312,7 +6185,7 @@ gtk_sheet_size_allocate_entry (GtkSheet *sheet)
        }
     }
 
-  if (!GTK_IS_ITEM_ENTRY (sheet->sheet_entry))
+  if (!GTK_IS_ITEM_ENTRY (sheet->entry_widget))
     {
       shentry_allocation.x += 2;
       shentry_allocation.y += 2;
@@ -6320,7 +6193,7 @@ gtk_sheet_size_allocate_entry (GtkSheet *sheet)
       shentry_allocation.height -= MIN (shentry_allocation.height, 3);
     }
 
-  gtk_widget_size_allocate (sheet->sheet_entry, &shentry_allocation);
+  gtk_widget_size_allocate (sheet->entry_widget, &shentry_allocation);
 
   if (previous_style == style) g_object_unref (previous_style);
 }
@@ -6338,10 +6211,10 @@ gtk_sheet_entry_set_max_size (GtkSheet *sheet)
   row = sheet->active_cell.row;
   col = sheet->active_cell.col;
 
-  if ( ! GTK_IS_ITEM_ENTRY (sheet->sheet_entry) )
+  if ( ! GTK_IS_ITEM_ENTRY (sheet->entry_widget) )
     return;
 
-  justification = GTK_ITEM_ENTRY (sheet->sheet_entry)->justification;
+  justification = GTK_ITEM_ENTRY (sheet->entry_widget)->justification;
 
   switch (justification)
     {
@@ -6389,76 +6262,56 @@ gtk_sheet_entry_set_max_size (GtkSheet *sheet)
 
   if (size != 0)
     size += xxx_column_width (sheet, col);
-  GTK_ITEM_ENTRY (sheet->sheet_entry)->text_max_size = size;
+  GTK_ITEM_ENTRY (sheet->entry_widget)->text_max_size = size;
 }
 
 
 static void
 create_sheet_entry (GtkSheet *sheet)
 {
-  GtkWidget *widget;
-  GtkWidget *parent;
-  GtkWidget *entry;
-  gint found_entry = FALSE;
-
-  widget = GTK_WIDGET (sheet);
-
-  if (sheet->sheet_entry)
+  if (sheet->entry_widget)
     {
-      /* avoids warnings */
-      gtk_widget_ref (sheet->sheet_entry);
-      gtk_widget_unparent (sheet->sheet_entry);
-      gtk_widget_destroy (sheet->sheet_entry);
+      gtk_widget_unparent (sheet->entry_widget);
     }
 
   if (sheet->entry_type)
     {
-      if (!g_type_is_a (sheet->entry_type, GTK_TYPE_ENTRY))
-       {
-         parent = g_object_new (sheet->entry_type, NULL);
-
-         sheet->sheet_entry = parent;
+      sheet->entry_container = g_object_new (sheet->entry_type, NULL);
+      g_object_ref_sink (sheet->entry_container);
+      sheet->entry_widget = gtk_sheet_get_entry (sheet);
 
-         entry = gtk_sheet_get_entry (sheet);
-         if (GTK_IS_ENTRY (entry))
-           found_entry = TRUE;
-       }
-      else
+      if  ( NULL == sheet->entry_widget)
        {
-         parent = g_object_new (sheet->entry_type, NULL);
-         entry = parent;
-         found_entry = TRUE;
+         g_warning ("Entry type is %s. It must be GtkEntry subclass, or a widget containing one. "
+                    "Using default", g_type_name (sheet->entry_type));
+         g_object_unref (sheet->entry_container);
+         sheet->entry_widget = sheet->entry_container = gtk_item_entry_new ();
        }
-
-      if (!found_entry)
+      else
        {
-         g_warning ("Entry type must be GtkEntry subclass, using default");
-         entry = gtk_item_entry_new ();
-         sheet->sheet_entry = entry;
+         sheet->entry_widget = sheet->entry_container ;
        }
-      else
-       sheet->sheet_entry = parent;
     }
   else
     {
-      entry = gtk_item_entry_new ();
-      sheet->sheet_entry = entry;
+      sheet->entry_widget = sheet->entry_container = gtk_item_entry_new ();
+      g_object_ref_sink (sheet->entry_container);
     }
 
-  gtk_widget_size_request (sheet->sheet_entry, NULL);
+  gtk_widget_size_request (sheet->entry_widget, NULL);
 
   if (GTK_WIDGET_REALIZED (sheet))
     {
-      gtk_widget_set_parent_window (sheet->sheet_entry, sheet->sheet_window);
-      gtk_widget_set_parent (sheet->sheet_entry, GTK_WIDGET (sheet));
-      gtk_widget_realize (sheet->sheet_entry);
+      gtk_widget_set_parent_window (sheet->entry_widget, sheet->sheet_window);
+      gtk_widget_set_parent (sheet->entry_widget, GTK_WIDGET (sheet));
+      gtk_widget_realize (sheet->entry_widget);
     }
 
-  g_signal_connect_swapped (G_OBJECT (entry), "key_press_event",
+  g_signal_connect_swapped (sheet->entry_widget, "key_press_event",
                            G_CALLBACK (gtk_sheet_entry_key_press),
                            sheet);
 
-  gtk_widget_show (sheet->sheet_entry);
+  gtk_widget_show (sheet->entry_widget);
 }
 
 
@@ -6484,11 +6337,12 @@ gtk_sheet_get_entry (GtkSheet *sheet)
 
   g_return_val_if_fail (sheet != NULL, NULL);
   g_return_val_if_fail (GTK_IS_SHEET (sheet), NULL);
-  g_return_val_if_fail (sheet->sheet_entry != NULL, NULL);
+  g_return_val_if_fail (sheet->entry_widget != NULL, NULL);
 
-  if (GTK_IS_ENTRY (sheet->sheet_entry)) return (sheet->sheet_entry);
+  if (GTK_IS_ENTRY (sheet->entry_container))
+    return (sheet->entry_container);
 
-  parent = GTK_WIDGET (sheet->sheet_entry);
+  parent = sheet->entry_container;
 
   if (GTK_IS_TABLE (parent)) children = GTK_TABLE (parent)->children;
   if (GTK_IS_BOX (parent)) children = GTK_BOX (parent)->children;
@@ -6533,9 +6387,9 @@ gtk_sheet_get_entry_widget (GtkSheet *sheet)
 {
   g_return_val_if_fail (sheet != NULL, NULL);
   g_return_val_if_fail (GTK_IS_SHEET (sheet), NULL);
-  g_return_val_if_fail (sheet->sheet_entry != NULL, NULL);
+  g_return_val_if_fail (sheet->entry_widget != NULL, NULL);
 
-  return (sheet->sheet_entry);
+  return (sheet->entry_widget);
 }
 
 
@@ -6649,7 +6503,7 @@ gtk_sheet_button_draw (GtkSheet *sheet, GdkWindow *window,
                                    "label",
                                    real_x, real_y,
                                    layout);
-                 g_object_unref (G_OBJECT (layout));
+                 g_object_unref (layout);
 
                  real_y += text_height + 2;
 
@@ -6746,7 +6600,7 @@ gtk_sheet_column_title_button_draw (GtkSheet *sheet, gint column)
                             is_sensitive, allocation);
 
       /* FIXME: Not freeing this button is correct (sort of),
-      because in PSPP the model always returns a static copy */
+        because in PSPP the model always returns a static copy */
 
       /* gtk_sheet_button_free (button); */
 
@@ -6800,7 +6654,7 @@ adjust_scrollbars (GtkSheet * sheet)
       sheet->vadjustment->step_increment = DEFAULT_ROW_HEIGHT (GTK_WIDGET (sheet));
       sheet->vadjustment->lower = 0;
       sheet->vadjustment->upper = SHEET_HEIGHT (sheet) + 80;
-      g_signal_emit_by_name (G_OBJECT (sheet->vadjustment), "changed");
+      g_signal_emit_by_name (sheet->vadjustment, "changed");
 
     }
 
@@ -6811,7 +6665,7 @@ adjust_scrollbars (GtkSheet * sheet)
       sheet->hadjustment->step_increment = DEFAULT_COLUMN_WIDTH;
       sheet->hadjustment->lower = 0;
       sheet->hadjustment->upper = SHEET_WIDTH (sheet)+ 80;
-      g_signal_emit_by_name (G_OBJECT (sheet->hadjustment), "changed");
+      g_signal_emit_by_name (sheet->hadjustment, "changed");
 
     }
 }
@@ -6833,16 +6687,14 @@ vadjustment_value_changed (GtkAdjustment * adjustment,
 
   if (GTK_SHEET_IS_FROZEN (sheet)) return;
 
-  row = ROW_FROM_YPIXEL (sheet, sheet->column_title_area.height + CELL_SPACING);
-  if (!sheet->column_titles_visible)
-    row = ROW_FROM_YPIXEL (sheet, CELL_SPACING);
+  row = ROW_FROM_YPIXEL (sheet, CELL_SPACING);
 
   old_value = - sheet->voffset;
 
   new_row = g_sheet_row_pixel_to_row (sheet->row_geometry,
-                                     adjustment->value, sheet);
+                                     adjustment->value);
 
-  y = g_sheet_row_start_pixel (sheet->row_geometry, new_row, sheet);
+  y = g_sheet_row_start_pixel (sheet->row_geometry, new_row);
 
   if (adjustment->value > sheet->old_vadjustment && sheet->old_vadjustment > 0. &&
       yyy_row_height (sheet, row) > sheet->vadjustment->step_increment)
@@ -6897,7 +6749,7 @@ vadjustment_value_changed (GtkAdjustment * adjustment,
 
   sheet->voffset = - value;
 
-  if (GTK_WIDGET_REALIZED (sheet->sheet_entry) &&
+  if (GTK_WIDGET_REALIZED (sheet->entry_widget) &&
       sheet->state == GTK_SHEET_NORMAL &&
       sheet->active_cell.row >= 0 && sheet->active_cell.col >= 0 &&
       !gtk_sheet_cell_isvisible (sheet, sheet->active_cell.row,
@@ -6911,7 +6763,7 @@ vadjustment_value_changed (GtkAdjustment * adjustment,
        gtk_sheet_cell_clear (sheet,
                              sheet->active_cell.row,
                              sheet->active_cell.col);
-      gtk_widget_unmap (sheet->sheet_entry);
+      gtk_widget_unmap (sheet->entry_widget);
     }
 
   gtk_sheet_position_children (sheet);
@@ -6938,9 +6790,7 @@ hadjustment_value_changed (GtkAdjustment * adjustment,
 
   if (GTK_SHEET_IS_FROZEN (sheet)) return;
 
-  column = COLUMN_FROM_XPIXEL (sheet, sheet->row_title_area.width + CELL_SPACING);
-  if (!sheet->row_titles_visible)
-    column = COLUMN_FROM_XPIXEL (sheet, CELL_SPACING);
+  column = COLUMN_FROM_XPIXEL (sheet, CELL_SPACING);
 
   old_value = - sheet->hoffset;
 
@@ -7003,7 +6853,7 @@ hadjustment_value_changed (GtkAdjustment * adjustment,
     }
 
   sheet->hoffset = - value;
-  if (GTK_WIDGET_REALIZED (sheet->sheet_entry) &&
+  if (GTK_WIDGET_REALIZED (sheet->entry_widget) &&
       sheet->state == GTK_SHEET_NORMAL &&
       sheet->active_cell.row >= 0 && sheet->active_cell.col >= 0 &&
       !gtk_sheet_cell_isvisible (sheet, sheet->active_cell.row,
@@ -7017,7 +6867,7 @@ hadjustment_value_changed (GtkAdjustment * adjustment,
                              sheet->active_cell.row,
                              sheet->active_cell.col);
 
-      gtk_widget_unmap (sheet->sheet_entry);
+      gtk_widget_unmap (sheet->entry_widget);
     }
 
   gtk_sheet_position_children (sheet);
@@ -7107,7 +6957,7 @@ draw_xor_rectangle (GtkSheet *sheet, GtkSheetRange range)
 
   gdk_gc_set_clip_rectangle (sheet->xor_gc, &clip_area);
 
-  for (i =1; i <= 1; ++i)
+  for (i = -1; i <= 1; ++i)
     gdk_draw_rectangle (sheet->sheet_window,
                        sheet->xor_gc,
                        FALSE,
@@ -7214,9 +7064,7 @@ gtk_sheet_set_column_width (GtkSheet * sheet,
       gtk_sheet_range_draw (sheet, NULL);
     }
 
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[CHANGED], 0, -1, column);
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[NEW_COL_WIDTH], 0,
-                column, width);
+  g_signal_emit (sheet, sheet_signals[CHANGED], 0, -1, column);
 }
 
 
@@ -7247,13 +7095,8 @@ gtk_sheet_set_row_height (GtkSheet * sheet,
       gtk_sheet_range_draw (sheet, NULL);
     }
 
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[CHANGED], 0, row, - 1);
-  g_signal_emit (G_OBJECT (sheet), sheet_signals[NEW_ROW_HEIGHT], 0,
-                row, height);
-
+  g_signal_emit (sheet, sheet_signals[CHANGED], 0, row, - 1);
 }
-
-
 gboolean
 gtk_sheet_get_attributes (const GtkSheet *sheet, gint row, gint col,
                          GtkSheetCellAttr *attributes)
@@ -7307,7 +7150,6 @@ init_attributes (const GtkSheet *sheet, gint col, GtkSheetCellAttr *attributes)
     {
       GdkColormap *colormap;
       colormap = gdk_colormap_get_system ();
-      gdk_color_black (colormap, &attributes->foreground);
       attributes->background = sheet->bg_color;
     }
   attributes->justification = xxx_column_justification (sheet, col);
@@ -7833,10 +7675,12 @@ gtk_sheet_forall (GtkContainer *container,
 
       (* callback) (child->widget, callback_data);
     }
-  if (sheet->button)
+
+  if (sheet->button && sheet->button->parent)
     (* callback) (sheet->button, callback_data);
-  if (sheet->sheet_entry)
-    (* callback) (sheet->sheet_entry, callback_data);
+
+  if (sheet->entry_container && GTK_IS_CONTAINER (sheet->entry_container))
+    (* callback) (sheet->entry_container, callback_data);
 }
 
 
@@ -7909,6 +7753,7 @@ gtk_sheet_remove (GtkContainer *container, GtkWidget *widget)
       g_free (child);
     }
 
+  gtk_widget_unparent (sheet->button);
 }
 
 static void
@@ -7998,7 +7843,7 @@ gtk_sheet_button_new (void)
 }
 
 
-inline void
+void
 gtk_sheet_button_free (GtkSheetButton *button)
 {
   if (!button) return ;
@@ -8008,10 +7853,21 @@ gtk_sheet_button_free (GtkSheetButton *button)
 }
 
 
+static void
+append_cell_text (GString *string, const GtkSheet *sheet, gint r, gint c)
+{
+  gchar *celltext = gtk_sheet_cell_get_text (sheet, r, c);
+
+  if ( NULL == celltext)
+    return;
+
+  g_string_append (string, celltext);
+  g_free (celltext);
+}
+
 static GString *
 range_to_text (const GtkSheet *sheet)
 {
-  gchar *celltext = NULL;
   gint r, c;
   GString *string;
 
@@ -8024,16 +7880,12 @@ range_to_text (const GtkSheet *sheet)
     {
       for (c = sheet->range.col0; c < sheet->range.coli; ++c)
        {
-         celltext = gtk_sheet_cell_get_text (sheet, r, c);
-         g_string_append (string, celltext);
+         append_cell_text (string, sheet, r, c);
          g_string_append (string, "\t");
-         g_free (celltext);
        }
-      celltext = gtk_sheet_cell_get_text (sheet, r, c);
-      g_string_append (string, celltext);
+      append_cell_text (string, sheet, r, c);
       if ( r < sheet->range.rowi)
        g_string_append (string, "\n");
-      g_free (celltext);
     }
 
   return string;
@@ -8042,7 +7894,6 @@ range_to_text (const GtkSheet *sheet)
 static GString *
 range_to_html (const GtkSheet *sheet)
 {
-  gchar *celltext = NULL;
   gint r, c;
   GString *string;
 
@@ -8054,16 +7905,14 @@ range_to_html (const GtkSheet *sheet)
   g_string_append (string, "<html>\n");
   g_string_append (string, "<body>\n");
   g_string_append (string, "<table>\n");
-  for (r = sheet->range.row0; r <= sheet->range.rowi; ++r) 
+  for (r = sheet->range.row0; r <= sheet->range.rowi; ++r)
     {
       g_string_append (string, "<tr>\n");
       for (c = sheet->range.col0; c <= sheet->range.coli; ++c)
        {
          g_string_append (string, "<td>");
-         celltext = gtk_sheet_cell_get_text (sheet, r, c);
-         g_string_append (string, celltext);
+         append_cell_text (string, sheet, r, c);
          g_string_append (string, "</td>\n");
-         g_free (celltext);
        }
       g_string_append (string, "</tr>\n");
     }
@@ -8090,16 +7939,16 @@ primary_get_cb (GtkClipboard     *clipboard,
   GString *string = NULL;
 
   switch (info)
-  {
-  case SELECT_FMT_TEXT:
-    string = range_to_text (sheet);
-    break;
-  case SELECT_FMT_HTML:
-    string = range_to_html (sheet);
-    break;
-  default:
-    g_assert_not_reached ();
-  }
+    {
+    case SELECT_FMT_TEXT:
+      string = range_to_text (sheet);
+      break;
+    case SELECT_FMT_HTML:
+      string = range_to_html (sheet);
+      break;
+    default:
+      g_assert_not_reached ();
+    }
 
   gtk_selection_data_set (selection_data, selection_data->target,
                          8,
@@ -8112,6 +7961,9 @@ primary_clear_cb (GtkClipboard *clipboard,
                  gpointer      data)
 {
   GtkSheet *sheet = GTK_SHEET (data);
+  if ( ! GTK_WIDGET_REALIZED (GTK_WIDGET (sheet)))
+    return;
+
   gtk_sheet_real_unselect_range (sheet, NULL);
 }
 
@@ -8121,24 +7973,24 @@ gtk_sheet_update_primary_selection (GtkSheet *sheet)
   static const GtkTargetEntry targets[] = {
     { "UTF8_STRING",   0, SELECT_FMT_TEXT },
     { "STRING",        0, SELECT_FMT_TEXT },
-    { "TEXT",          0, SELECT_FMT_TEXT }, 
+    { "TEXT",          0, SELECT_FMT_TEXT },
     { "COMPOUND_TEXT", 0, SELECT_FMT_TEXT },
-    { "text/plain;charset=utf-8", 0, SELECT_FMT_TEXT }, 
+    { "text/plain;charset=utf-8", 0, SELECT_FMT_TEXT },
     { "text/plain",    0, SELECT_FMT_TEXT },
     { "text/html",     0, SELECT_FMT_HTML }
   };
-  
+
   GtkClipboard *clipboard;
 
   if (!GTK_WIDGET_REALIZED (sheet))
     return;
 
-  clipboard = gtk_widget_get_clipboard (GTK_WIDGET (sheet), 
+  clipboard = gtk_widget_get_clipboard (GTK_WIDGET (sheet),
                                        GDK_SELECTION_PRIMARY);
-  
+
   if (gtk_sheet_range_isvisible (sheet, sheet->range))
     {
-      if (!gtk_clipboard_set_with_owner (clipboard, targets, 
+      if (!gtk_clipboard_set_with_owner (clipboard, targets,
                                         G_N_ELEMENTS (targets),
                                         primary_get_cb, primary_clear_cb,
                                         G_OBJECT (sheet)))