Remove E_MAKE_TYPE macro.

2007-07-27 Hiroyuki Ikezoe <poincare@ikezoe.net> * e-util/e-util.h: Remove E_MAKE_TYPE macro. * e-util/e-bit-array.c: * e-util/e-sorter-array.c: * e-util/e-sorter.c: * e-util/e-text-event-processor-emacs-like.c: * e-util/e-text-event-processor.c: * widgets/menus/gal-define-views-dialog.c: * widgets/menus/gal-define-views-model.c: * widgets/menus/gal-view-collection.c: * widgets/menus/gal-view-etable.c: * widgets/menus/gal-view-factory-etable.c: * widgets/menus/gal-view-factory.c: * widgets/menus/gal-view-instance-save-as-dialog.c: * widgets/menus/gal-view-instance.c: * widgets/menus/gal-view-new-dialog.c: * widgets/menus/gal-view.c: * widgets/misc/e-canvas-background.c: * widgets/misc/e-canvas-vbox.c: * widgets/misc/e-canvas.c: * widgets/misc/e-printable.c: * widgets/misc/e-reflow-model.c: * widgets/misc/e-reflow.c: * widgets/misc/e-selection-model-array.c: * widgets/misc/e-selection-model-simple.c: * widgets/misc/e-selection-model.c: * widgets/table/e-cell-checkbox.c: * widgets/table/e-cell-combo.c: * widgets/table/e-cell-date.c: * widgets/table/e-cell-float.c: * widgets/table/e-cell-hbox.c: * widgets/table/e-cell-number.c: * widgets/table/e-cell-pixbuf.c: * widgets/table/e-cell-popup.c: * widgets/table/e-cell-progress.c: * widgets/table/e-cell-size.c: * widgets/table/e-cell-spin-button.c: * widgets/table/e-cell-text.c: * widgets/table/e-cell-toggle.c: * widgets/table/e-cell-tree.c: * widgets/table/e-cell-vbox.c: * widgets/table/e-cell.c: * widgets/table/e-table-click-to-add.c: * widgets/table/e-table-col.c: * widgets/table/e-table-column-specification.c: * widgets/table/e-table-column.c: * widgets/table/e-table-config-field.c: * widgets/table/e-table-config.c: * widgets/table/e-table-extras.c: * widgets/table/e-table-field-chooser-dialog.c: * widgets/table/e-table-field-chooser-item.c: * widgets/table/e-table-field-chooser.c: * widgets/table/e-table-group-container.c: * widgets/table/e-table-group-leaf.c: * widgets/table/e-table-group.c: * widgets/table/e-table-header-item.c: * widgets/table/e-table-header.c: * widgets/table/e-table-item.c: * widgets/table/e-table-memory-callbacks.c: * widgets/table/e-table-memory-store.c: * widgets/table/e-table-memory.c: * widgets/table/e-table-model.c: * widgets/table/e-table-one.c: * widgets/table/e-table-scrolled.c: * widgets/table/e-table-search.c: * widgets/table/e-table-selection-model.c: * widgets/table/e-table-simple.c: * widgets/table/e-table-sort-info.c: * widgets/table/e-table-sorted-variable.c: * widgets/table/e-table-sorted.c: * widgets/table/e-table-sorter.c: * widgets/table/e-table-specification.c: * widgets/table/e-table-state.c: * widgets/table/e-table-subset-variable.c: * widgets/table/e-table-subset.c: * widgets/table/e-table-without.c: * widgets/table/e-table.c: * widgets/table/e-tree-memory-callbacks.c: * widgets/table/e-tree-memory.c: * widgets/table/e-tree-model.c: * widgets/table/e-tree-scrolled.c: * widgets/table/e-tree-selection-model.c: * widgets/table/e-tree-simple.c: * widgets/table/e-tree-sorted-variable.c: * widgets/table/e-tree-sorted.c: * widgets/table/e-tree-table-adapter.c: * widgets/table/e-tree.c: * widgets/text/e-completion-callbacks.c: * widgets/text/e-completion-view.c: * widgets/text/e-completion.c: * widgets/text/e-entry.c: * widgets/text/e-table-text-model.c: * widgets/text/e-text-model-uri.c: * widgets/text/e-text-model.c: * widgets/text/e-text.c: Use G_DEFINE_TYPE instead of E_MAKE_TYPE. svn path=/trunk/; revision=33864
author: Hiroyuki Ikezoe <poincare@ikezoe.net> 2007-07-28 05:14:15 +0800
committer: Matthew Barnes <mbarnes@src.gnome.org> 2007-07-28 05:14:15 +0800
commit: 6baf4d9bcc8fac7d3ac4442ffa54138f9670b20f (patch)
tree: 64868338277e36a40c6b37106dfb8112fc278264
parent: 08de5e9e147248b84bc1fa618f7cc9d892ddb136 (diff)
download: gsoc2013-evolution-6baf4d9bcc8fac7d3ac4442ffa54138f9670b20f.tar.gz
gsoc2013-evolution-6baf4d9bcc8fac7d3ac4442ffa54138f9670b20f.tar.zst
gsoc2013-evolution-6baf4d9bcc8fac7d3ac4442ffa54138f9670b20f.zip
97 files changed, 754 insertions, 1176 deletions
diff --git a/e-util/ChangeLog b/e-util/ChangeLog
index b28edc8806..4e9a519b24 100644
--- a/e-util/ChangeLog
+++ b/e-util/ChangeLog
@@ -1,3 +1,13 @@
+2007-07-27  Hiroyuki Ikezoe  <poincare@ikezoe.net>
+
+	* e-util.h: Remove E_MAKE_TYPE macro.
+
+	* e-text-event-processor.c: 
+	* e-sorter.c:
+	* e-text-event-processor-emacs-like.c:
+	* e-sorter-array.c:
+	* e-bit-array.c: Use G_DEFINE_TYPE instead of E_MAKE_TYPE.
+
 2007-07-26  Sankar P  <psankar@novell.com>
 
 	* e-plugin.c: (e_plugin_configure), (epl_configure),
diff --git a/e-util/e-bit-array.c b/e-util/e-bit-array.c
index 8fa7af134e..07728b4134 100644
--- a/e-util/e-bit-array.c
+++ b/e-util/e-bit-array.c
@@ -28,8 +28,6 @@
 #include "e-bit-array.h"
 #include "e-util.h"
 
-#define PARENT_TYPE G_TYPE_OBJECT
-
 #define ONES ((guint32) 0xffffffff)
 
 #define BOX(n) ((n) / 32)
@@ -38,7 +36,7 @@
 #define BITMASK_LEFT(n) ((((n) % 32) == 0) ? 0 : (ONES << (32 - ((n) % 32))))
 #define BITMASK_RIGHT(n) ((guint32)(((guint32) ONES) >> ((n) % 32)))
 
-static GObjectClass *parent_class;
+G_DEFINE_TYPE (EBitArray, e_bit_array, G_TYPE_OBJECT)
 
 static void
 e_bit_array_insert_real(EBitArray *eba, int row)
@@ -151,8 +149,8 @@ eba_dispose (GObject *object)
 		g_free(eba->data);
 	eba->data = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_bit_array_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_bit_array_parent_class)->dispose) (object);
 }
 
 /** 
@@ -411,16 +409,11 @@ e_bit_array_class_init (EBitArrayClass *klass)
 {
 	GObjectClass *object_class;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class = G_OBJECT_CLASS(klass);
 
 	object_class->dispose = eba_dispose;
 }
 
-E_MAKE_TYPE(e_bit_array, "EBitArray", EBitArray,
-	    e_bit_array_class_init, e_bit_array_init, PARENT_TYPE)
-
 EBitArray *
 e_bit_array_new (int count)
 {
diff --git a/e-util/e-sorter-array.c b/e-util/e-sorter-array.c
index 0f103a339a..894798f393 100644
--- a/e-util/e-sorter-array.c
+++ b/e-util/e-sorter-array.c
@@ -31,11 +31,9 @@
 
 #define d(x)
 
-#define PARENT_TYPE E_SORTER_TYPE
-
 #define INCREMENT_AMOUNT 100
 
-static ESorterClass *parent_class;
+G_DEFINE_TYPE (ESorterArray, e_sorter_array, E_SORTER_TYPE)
 
 static void    	esa_sort               (ESorterArray *esa);
 static void    	esa_backsort           (ESorterArray *esa);
@@ -237,12 +235,10 @@ e_sorter_array_new (ECompareRowsFunc compare, gpointer closure)
 }
 
 static void
-esa_class_init (ESorterArrayClass *klass)
+e_sorter_array_class_init (ESorterArrayClass *klass)
 {
 	ESorterClass *sorter_class = E_SORTER_CLASS(klass);
 
-	parent_class                            = g_type_class_ref (PARENT_TYPE);
-
 	sorter_class->model_to_sorted           = esa_model_to_sorted           ;
 	sorter_class->sorted_to_model           = esa_sorted_to_model           ;
 	sorter_class->get_model_to_sorted_array = esa_get_model_to_sorted_array ;
@@ -251,7 +247,7 @@ esa_class_init (ESorterArrayClass *klass)
 }
 
 static void
-esa_init (ESorterArray *esa)
+e_sorter_array_init (ESorterArray *esa)
 {
 	esa->rows       = 0;
 	esa->compare    = NULL;
@@ -260,4 +256,3 @@ esa_init (ESorterArray *esa)
 	esa->backsorted = NULL;
 }
 
-E_MAKE_TYPE(e_sorter_array, "ESorterArray", ESorterArray, esa_class_init, esa_init, PARENT_TYPE)
diff --git a/e-util/e-sorter.c b/e-util/e-sorter.c
index 4ac07809be..624cf7660b 100644
--- a/e-util/e-sorter.c
+++ b/e-util/e-sorter.c
@@ -33,7 +33,7 @@
 
 #define PARENT_TYPE G_TYPE_OBJECT
 
-static GObjectClass *parent_class;
+G_DEFINE_TYPE (ESorter, e_sorter, G_TYPE_OBJECT)
 
 static gint es_model_to_sorted (ESorter *es, int row);
 static gint es_sorted_to_model (ESorter *es, int row);
@@ -42,10 +42,8 @@ static void es_get_sorted_to_model_array (ESorter *es, int **array, int *count);
 static gboolean es_needs_sorting(ESorter *es);
 
 static void
-es_class_init (ESorterClass *klass)
+e_sorter_class_init (ESorterClass *klass)
 {
-	parent_class                     = g_type_class_ref (PARENT_TYPE);
-
 	klass->model_to_sorted           = es_model_to_sorted;
 	klass->sorted_to_model           = es_sorted_to_model;
 	klass->get_model_to_sorted_array = es_get_model_to_sorted_array;
@@ -54,12 +52,10 @@ es_class_init (ESorterClass *klass)
 }
 
 static void
-es_init (ESorter *es)
+e_sorter_init (ESorter *es)
 {
 }
 
-E_MAKE_TYPE(e_sorter, "ESorter", ESorter, es_class_init, es_init, PARENT_TYPE)
-
 ESorter *
 e_sorter_new (void)
 {
diff --git a/e-util/e-text-event-processor-emacs-like.c b/e-util/e-text-event-processor-emacs-like.c
index b04ae724f5..a5935fde06 100644
--- a/e-util/e-text-event-processor-emacs-like.c
+++ b/e-util/e-text-event-processor-emacs-like.c
@@ -34,8 +34,7 @@ static void e_text_event_processor_emacs_like_init		(ETextEventProcessorEmacsLik
 static void e_text_event_processor_emacs_like_class_init	(ETextEventProcessorEmacsLikeClass	 *klass);
 static gint e_text_event_processor_emacs_like_event (ETextEventProcessor *tep, ETextEventProcessorEvent *event);
 
-#define PARENT_TYPE E_TEXT_EVENT_PROCESSOR_TYPE
-static ETextEventProcessorClass *parent_class = NULL;
+G_DEFINE_TYPE (ETextEventProcessorEmacsLike, e_text_event_processor_emacs_like, E_TEXT_EVENT_PROCESSOR_TYPE)
 
 /* The arguments we take */
 enum {
@@ -103,13 +102,6 @@ static const ETextEventProcessorCommand alt_keys[26] =
 
 };
 
-E_MAKE_TYPE (e_text_event_processor_emacs_like,
-	     "ETextEventProcessorEmacsLike",
-	     ETextEventProcessorEmacsLike,
-	     e_text_event_processor_emacs_like_class_init,
-	     e_text_event_processor_emacs_like_init,
-	     PARENT_TYPE)
-
 static void
 e_text_event_processor_emacs_like_class_init (ETextEventProcessorEmacsLikeClass *klass)
 {
@@ -117,8 +109,6 @@ e_text_event_processor_emacs_like_class_init (ETextEventProcessorEmacsLikeClass
 
   processor_class = (ETextEventProcessorClass*) klass;
 
-  parent_class = g_type_class_ref (PARENT_TYPE);
-
   processor_class->event = e_text_event_processor_emacs_like_event;
 }
 
diff --git a/e-util/e-text-event-processor.c b/e-util/e-text-event-processor.c
index c5dc27cc7d..9f9ca211d2 100644
--- a/e-util/e-text-event-processor.c
+++ b/e-util/e-text-event-processor.c
@@ -41,9 +41,6 @@ static void e_text_event_processor_get_property (GObject *object,
 						 GValue *value,
 						 GParamSpec *pspec);
 
-#define PARENT_TYPE G_TYPE_OBJECT
-static GObjectClass *parent_class = NULL;
-
 /* The arguments we take */
 enum {
 	PROP_0,
@@ -57,12 +54,7 @@ enum {
 
 static guint e_tep_signals[E_TEP_LAST_SIGNAL] = { 0 };
 
-E_MAKE_TYPE (e_text_event_processor,
-	     "ETextEventProcessor",
-	     ETextEventProcessor,
-	     e_text_event_processor_class_init,
-	     e_text_event_processor_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ETextEventProcessor, e_text_event_processor, G_TYPE_OBJECT)
 
 static void
 e_text_event_processor_class_init (ETextEventProcessorClass *klass)
@@ -71,8 +63,6 @@ e_text_event_processor_class_init (ETextEventProcessorClass *klass)
 
 	object_class = (GObjectClass*) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->set_property = e_text_event_processor_set_property;
 	object_class->get_property = e_text_event_processor_get_property;
 
diff --git a/e-util/e-util.h b/e-util/e-util.h
index 2cbae35cb8..ce2c685372 100644
--- a/e-util/e-util.h
+++ b/e-util/e-util.h
@@ -37,30 +37,6 @@ extern "C" {
 
 #include <e-util/e-util-marshal.h>
 
-#define E_MAKE_TYPE(l,str,t,ci,i,parent) \
-GType l##_get_type(void)\
-{\
-	static GType type = 0;				\
-	if (!type){					\
-		static GTypeInfo const object_info = {	\
-			sizeof (t##Class),		\
-							\
-			(GBaseInitFunc) NULL,		\
-			(GBaseFinalizeFunc) NULL,	\
-							\
-			(GClassInitFunc) ci,		\
-			(GClassFinalizeFunc) NULL,	\
-			NULL,	/* class_data */	\
-							\
-			sizeof (t),			\
-			0,	/* n_preallocs */	\
-			(GInstanceInitFunc) i,		\
-		};					\
-		type = g_type_register_static (parent, str, &object_info, 0);	\
-	}						\
-	return type;					\
-}
-
 typedef enum {
 	E_FOCUS_NONE,
 	E_FOCUS_CURRENT,
diff --git a/widgets/ChangeLog b/widgets/ChangeLog
index a58f6539e6..8ed846152c 100644
--- a/widgets/ChangeLog
+++ b/widgets/ChangeLog
@@ -1,3 +1,34 @@
+2007-07-27  Hiroyuki Ikezoe  <poincare@ikezoe.net>
+
+	* text/e-text-model-uri.c:
+	* text/e-completion-view.c:
+	* text/e-text-model.c:
+	* text/e-text.c:
+	* text/e-completion-callbacks.c:
+	* text/e-entry.c:
+	* text/e-table-text-model.c:
+	* text/e-completion.c:
+	* menus/gal-view-new-dialog.c:
+	* menus/gal-view-collection.c:
+	* menus/gal-view-etable.c:
+	* menus/gal-view-instance-save-as-dialog.c:
+	* menus/gal-view-factory-etable.c:
+	* menus/gal-view.c:
+	* menus/gal-view-instance.c:
+	* menus/gal-view-factory.c:
+	* menus/gal-define-views-dialog.c:
+	* menus/gal-define-views-model.c:
+	* misc/e-canvas-vbox.c:
+	* misc/e-reflow-model.c:
+	* misc/e-selection-model-array.c:
+	* misc/e-reflow.c:
+	* misc/e-canvas.c:
+	* misc/e-selection-model.c:
+	* misc/e-printable.c:
+	* misc/e-canvas-background.c:
+	* misc/e-selection-model-simple.c: Use G_DEFINE_TYPE instead of
+	  E_MAKE_TYPE.
+
 2007-07-27  Matthew Barnes  <mbarnes@redhat.com>
 
 	* text/Makefile.am:
diff --git a/widgets/menus/gal-define-views-dialog.c b/widgets/menus/gal-define-views-dialog.c
index 8f7aec365f..9518d22143 100644
--- a/widgets/menus/gal-define-views-dialog.c
+++ b/widgets/menus/gal-define-views-dialog.c
@@ -40,9 +40,6 @@ static void gal_define_views_dialog_set_property (GObject *object, guint prop_id
 static void gal_define_views_dialog_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
 static void gal_define_views_dialog_dispose	 (GObject *object);
 
-static GtkDialogClass *parent_class = NULL;
-#define PARENT_TYPE GTK_TYPE_DIALOG
-
 /* The properties we support */
 enum {
 	PROP_0,
@@ -63,8 +60,7 @@ typedef struct {
 	GalDefineViewsDialog *names;
 } GalDefineViewsDialogChild;
 
-
-E_MAKE_TYPE(gal_define_views_dialog, "GalDefineViewsDialog", GalDefineViewsDialog, gal_define_views_dialog_class_init, gal_define_views_dialog_init, PARENT_TYPE)
+G_DEFINE_TYPE (GalDefineViewsDialog, gal_define_views_dialog, GTK_TYPE_DIALOG)
 
 static void
 gal_define_views_dialog_class_init (GalDefineViewsDialogClass *klass)
@@ -73,8 +69,6 @@ gal_define_views_dialog_class_init (GalDefineViewsDialogClass *klass)
 
 	object_class = (GObjectClass*) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->set_property = gal_define_views_dialog_set_property;
 	object_class->get_property = gal_define_views_dialog_get_property;
 	object_class->dispose = gal_define_views_dialog_dispose;
@@ -305,8 +299,8 @@ gal_define_views_dialog_dispose (GObject *object)
 		g_object_unref(gal_define_views_dialog->gui);
 	gal_define_views_dialog->gui = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (gal_define_views_dialog_parent_class)->dispose)
+		(* G_OBJECT_CLASS (gal_define_views_dialog_parent_class)->dispose) (object);
 }
 
 static void
diff --git a/widgets/menus/gal-define-views-model.c b/widgets/menus/gal-define-views-model.c
index b38dbbc4b2..912012935b 100644
--- a/widgets/menus/gal-define-views-model.c
+++ b/widgets/menus/gal-define-views-model.c
@@ -32,8 +32,7 @@
 
 #include "gal-define-views-model.h"
 
-#define PARENT_TYPE E_TABLE_MODEL_TYPE
-static ETableModelClass *parent_class;
+G_DEFINE_TYPE (GalDefineViewsModel, gal_define_views_model, E_TABLE_MODEL_TYPE)
 
 /*
  * GalDefineViewsModel callbacks
@@ -57,8 +56,8 @@ gdvm_dispose(GObject *object)
 		g_object_unref(model->collection);
 	model->collection = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (gal_define_views_model_parent_class)->dispose)
+		(* G_OBJECT_CLASS (gal_define_views_model_parent_class)->dispose) (object);
 }
 
 /* This function returns the number of columns in our ETableModel. */
@@ -166,11 +165,10 @@ gal_define_views_model_append (GalDefineViewsModel *model,
 }
 
 static void
-gal_define_views_model_class_init (GObjectClass *object_class)
+gal_define_views_model_class_init (GalDefineViewsModelClass *klass)
 {
-	ETableModelClass *model_class = (ETableModelClass *) object_class;
-
-	parent_class = g_type_class_ref (PARENT_TYPE);
+	ETableModelClass *model_class = E_TABLE_MODEL_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->dispose        = gdvm_dispose;
 	object_class->set_property   = gal_define_views_model_set_property;
@@ -204,10 +202,8 @@ gal_define_views_model_class_init (GObjectClass *object_class)
 }
 
 static void
-gal_define_views_model_init (GObject *object)
+gal_define_views_model_init (GalDefineViewsModel *model)
 {
-	GalDefineViewsModel *model = GAL_DEFINE_VIEWS_MODEL(object);
-
 	model->collection = NULL;
 }
 
@@ -255,8 +251,6 @@ gal_define_views_model_get_property (GObject *object, guint prop_id, GValue *val
 	}
 }
 
-E_MAKE_TYPE(gal_define_views_model, "GalDefineViewsModel", GalDefineViewsModel, gal_define_views_model_class_init, gal_define_views_model_init, PARENT_TYPE)
-
 /**
  * gal_define_views_model_new
  *
diff --git a/widgets/menus/gal-view-collection.c b/widgets/menus/gal-view-collection.c
index b94fb02f5f..6d86b91c76 100644
--- a/widgets/menus/gal-view-collection.c
+++ b/widgets/menus/gal-view-collection.c
@@ -39,9 +39,7 @@
 
 #include "gal-view-collection.h"
 
-#define PARENT_TYPE G_TYPE_OBJECT
-
-static GObjectClass *gal_view_collection_parent_class;
+G_DEFINE_TYPE (GalViewCollection, gal_view_collection, G_TYPE_OBJECT)
 
 #define d(x)
 
@@ -191,16 +189,15 @@ gal_view_collection_dispose (GObject *object)
 	g_free (collection->title);
 	collection->title = NULL;
 
-	if (gal_view_collection_parent_class->dispose)
-		(*gal_view_collection_parent_class->dispose)(object);
+	if (G_OBJECT_CLASS (gal_view_collection_parent_class)->dispose)
+		(* G_OBJECT_CLASS (gal_view_collection_parent_class)->dispose)(object);
 }
 
 static void
-gal_view_collection_class_init (GObjectClass *object_class)
+gal_view_collection_class_init (GalViewCollectionClass *klass)
 {
-	GalViewCollectionClass *klass = GAL_VIEW_COLLECTION_CLASS(object_class);
-	gal_view_collection_parent_class = g_type_class_ref (PARENT_TYPE);
-	
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
 	object_class->dispose = gal_view_collection_dispose;
 
 	gal_view_collection_signals [DISPLAY_VIEW] =
@@ -245,8 +242,6 @@ gal_view_collection_init (GalViewCollection *collection)
 	collection->title                 = NULL;
 }
 
-E_MAKE_TYPE(gal_view_collection, "GalViewCollection", GalViewCollection, gal_view_collection_class_init, gal_view_collection_init, PARENT_TYPE)
-
 /**
  * gal_view_collection_new:
  *
diff --git a/widgets/menus/gal-view-etable.c b/widgets/menus/gal-view-etable.c
index f35d94e5db..6a7576c311 100644
--- a/widgets/menus/gal-view-etable.c
+++ b/widgets/menus/gal-view-etable.c
@@ -27,9 +27,7 @@
 
 #include "gal-view-etable.h"
 
-#define PARENT_TYPE GAL_VIEW_TYPE
-
-static GalViewClass *gal_view_etable_parent_class;
+G_DEFINE_TYPE (GalViewEtable, gal_view_etable, GAL_VIEW_TYPE)
 
 static void
 detach_table (GalViewEtable *view)
@@ -163,10 +161,10 @@ gal_view_etable_dispose         (GObject *object)
 }
 
 static void
-gal_view_etable_class_init      (GObjectClass *object_class)
+gal_view_etable_class_init      (GalViewEtableClass *klass)
 {
-	GalViewClass *gal_view_class  = GAL_VIEW_CLASS(object_class);
-	gal_view_etable_parent_class  = g_type_class_ref (PARENT_TYPE);
+	GalViewClass *gal_view_class  = GAL_VIEW_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	gal_view_class->edit          = gal_view_etable_edit         ;
 	gal_view_class->load          = gal_view_etable_load         ;
@@ -187,8 +185,6 @@ gal_view_etable_init      (GalViewEtable *gve)
 	gve->title = NULL;
 }
 
-E_MAKE_TYPE(gal_view_etable, "GalViewEtable", GalViewEtable, gal_view_etable_class_init, gal_view_etable_init, PARENT_TYPE)
-
 /**
  * gal_view_etable_new
  * @spec: The ETableSpecification that this view will be based upon.
diff --git a/widgets/menus/gal-view-factory-etable.c b/widgets/menus/gal-view-factory-etable.c
index 309cf2d5cb..655740f5ec 100644
--- a/widgets/menus/gal-view-factory-etable.c
+++ b/widgets/menus/gal-view-factory-etable.c
@@ -29,9 +29,7 @@
 #include "gal-view-etable.h"
 #include "gal-view-factory-etable.h"
 
-#define PARENT_TYPE GAL_VIEW_FACTORY_TYPE
-
-static GalViewFactoryClass *gal_view_factory_etable_parent_class;
+G_DEFINE_TYPE (GalViewFactoryEtable, gal_view_factory_etable, GAL_VIEW_FACTORY_TYPE)
 
 static const char *
 gal_view_factory_etable_get_title       (GalViewFactory *factory)
@@ -66,10 +64,10 @@ gal_view_factory_etable_dispose         (GObject *object)
 }
 
 static void
-gal_view_factory_etable_class_init      (GObjectClass *object_class)
+gal_view_factory_etable_class_init      (GalViewFactoryEtableClass *klass)
 {
-	GalViewFactoryClass *view_factory_class = GAL_VIEW_FACTORY_CLASS(object_class);
-	gal_view_factory_etable_parent_class    = g_type_class_ref (PARENT_TYPE);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	GalViewFactoryClass *view_factory_class = GAL_VIEW_FACTORY_CLASS (klass);
 
 	view_factory_class->get_title           = gal_view_factory_etable_get_title;
 	view_factory_class->new_view            = gal_view_factory_etable_new_view;
@@ -119,4 +117,3 @@ gal_view_factory_etable_construct  (GalViewFactoryEtable *factory,
 	return GAL_VIEW_FACTORY(factory);
 }
 
-E_MAKE_TYPE(gal_view_factory_etable, "GalViewFactoryEtable", GalViewFactoryEtable, gal_view_factory_etable_class_init, gal_view_factory_etable_init, PARENT_TYPE)
diff --git a/widgets/menus/gal-view-factory.c b/widgets/menus/gal-view-factory.c
index 6441d9ee24..f9f832d767 100644
--- a/widgets/menus/gal-view-factory.c
+++ b/widgets/menus/gal-view-factory.c
@@ -27,14 +27,12 @@
 
 #include "gal-view-factory.h"
 
-#define PARENT_TYPE G_TYPE_OBJECT
+G_DEFINE_TYPE (GalViewFactory, gal_view_factory, G_TYPE_OBJECT)
 
 #define d(x)
 
 d(static gint depth = 0;)
 
-static GObjectClass *gal_view_factory_parent_class;
-
 /**
  * gal_view_factory_get_title:
  * @factory: The factory to query.
@@ -92,11 +90,8 @@ gal_view_factory_get_type_code (GalViewFactory *factory)
 }
 
 static void
-gal_view_factory_class_init      (GObjectClass *object_class)
+gal_view_factory_class_init      (GalViewFactoryClass *klass)
 {
-	GalViewFactoryClass *klass = GAL_VIEW_FACTORY_CLASS(object_class);
-	gal_view_factory_parent_class = g_type_class_ref (PARENT_TYPE);
-	
 	klass->get_title = NULL;     
 	klass->new_view  = NULL;     
 }
@@ -106,4 +101,3 @@ gal_view_factory_init      (GalViewFactory *factory)
 {
 }
 
-E_MAKE_TYPE(gal_view_factory, "GalViewFactory", GalViewFactory, gal_view_factory_class_init, gal_view_factory_init, PARENT_TYPE)
diff --git a/widgets/menus/gal-view-instance-save-as-dialog.c b/widgets/menus/gal-view-instance-save-as-dialog.c
index 622b99a049..ba322563dc 100644
--- a/widgets/menus/gal-view-instance-save-as-dialog.c
+++ b/widgets/menus/gal-view-instance-save-as-dialog.c
@@ -33,8 +33,7 @@
 #include "gal-view-instance-save-as-dialog.h"
 #include "gal-view-new-dialog.h"
 
-static GtkDialogClass *parent_class = NULL;
-#define PARENT_TYPE GTK_TYPE_DIALOG
+G_DEFINE_TYPE (GalViewInstanceSaveAsDialog, gal_view_instance_save_as_dialog, GTK_TYPE_DIALOG)
 
 /* The arguments we take */
 enum {
@@ -159,8 +158,8 @@ gal_view_instance_save_as_dialog_dispose (GObject *object)
 		g_object_unref(gal_view_instance_save_as_dialog->gui);
 	gal_view_instance_save_as_dialog->gui = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (gal_view_instance_save_as_dialog_parent_class)->dispose)
+		(* G_OBJECT_CLASS (gal_view_instance_save_as_dialog_parent_class)->dispose) (object);
 }
 
 /* Init functions */
@@ -171,8 +170,6 @@ gal_view_instance_save_as_dialog_class_init (GalViewInstanceSaveAsDialogClass *k
 
 	object_class = (GObjectClass*) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->set_property = gal_view_instance_save_as_dialog_set_property;
 	object_class->get_property = gal_view_instance_save_as_dialog_get_property;
 	object_class->dispose      = gal_view_instance_save_as_dialog_dispose;
@@ -270,11 +267,6 @@ gal_view_instance_save_as_dialog_new (GalViewInstance *instance)
 	return widget;
 }
 
-E_MAKE_TYPE(gal_view_instance_save_as_dialog, "GalViewInstanceSaveAsDialog",
-	    GalViewInstanceSaveAsDialog,
-	    gal_view_instance_save_as_dialog_class_init,
-	    gal_view_instance_save_as_dialog_init, PARENT_TYPE)
-
 void
 gal_view_instance_save_as_dialog_save (GalViewInstanceSaveAsDialog *dialog)
 {
diff --git a/widgets/menus/gal-view-instance.c b/widgets/menus/gal-view-instance.c
index 521da6a6b3..c2fb24af20 100644
--- a/widgets/menus/gal-view-instance.c
+++ b/widgets/menus/gal-view-instance.c
@@ -45,9 +45,7 @@
 #include "gal-view-instance.h"
 #include "gal-view-instance-save-as-dialog.h"
 
-#define PARENT_TYPE G_TYPE_OBJECT
-
-static GObjectClass *gal_view_instance_parent_class;
+G_DEFINE_TYPE (GalViewInstance, gal_view_instance, G_TYPE_OBJECT)
 
 static const EPopupMenu separator = E_POPUP_SEPARATOR;
 static const EPopupMenu terminator = E_POPUP_TERMINATOR;
@@ -174,16 +172,15 @@ gal_view_instance_dispose (GObject *object)
 
 	g_free (instance->default_view);
 
-	if (gal_view_instance_parent_class->dispose)
-		(*gal_view_instance_parent_class->dispose)(object);
+	if (G_OBJECT_CLASS (gal_view_instance_parent_class)->dispose)
+		(* G_OBJECT_CLASS (gal_view_instance_parent_class)->dispose)(object);
 }
 
 static void
-gal_view_instance_class_init (GObjectClass *object_class)
+gal_view_instance_class_init (GalViewInstanceClass *klass)
 {
-	GalViewInstanceClass *klass = GAL_VIEW_INSTANCE_CLASS(object_class);
-	gal_view_instance_parent_class = g_type_class_ref (PARENT_TYPE);
-	
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
 	object_class->dispose = gal_view_instance_dispose;
 
 	gal_view_instance_signals [DISPLAY_VIEW] =
@@ -229,8 +226,6 @@ gal_view_instance_init (GalViewInstance *instance)
 	instance->default_view = NULL;
 }
 
-E_MAKE_TYPE(gal_view_instance, "GalViewInstance", GalViewInstance, gal_view_instance_class_init, gal_view_instance_init, PARENT_TYPE)
-
 static void
 collection_changed (GalView *view, GalViewInstance *instance)
 {
diff --git a/widgets/menus/gal-view-new-dialog.c b/widgets/menus/gal-view-new-dialog.c
index c41ce03123..49c96d4c2c 100644
--- a/widgets/menus/gal-view-new-dialog.c
+++ b/widgets/menus/gal-view-new-dialog.c
@@ -40,9 +40,6 @@ static void gal_view_new_dialog_set_property	(GObject *object, guint prop_id, co
 static void gal_view_new_dialog_get_property	(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
 static void gal_view_new_dialog_dispose		(GObject *object);
 
-static GtkDialogClass *parent_class = NULL;
-#define PARENT_TYPE GTK_TYPE_DIALOG
-
 /* The arguments we take */
 enum {
 	PROP_0,
@@ -50,10 +47,7 @@ enum {
 	PROP_FACTORY
 };
 
-E_MAKE_TYPE(gal_view_new_dialog, "GalViewNewDialog",
-	    GalViewNewDialog,
-	    gal_view_new_dialog_class_init,
-	    gal_view_new_dialog_init, PARENT_TYPE)
+G_DEFINE_TYPE (GalViewNewDialog, gal_view_new_dialog, GTK_TYPE_DIALOG)
 
 static void
 gal_view_new_dialog_class_init (GalViewNewDialogClass *klass)
@@ -62,8 +56,6 @@ gal_view_new_dialog_class_init (GalViewNewDialogClass *klass)
 
 	object_class = (GObjectClass*) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->set_property = gal_view_new_dialog_set_property;
 	object_class->get_property = gal_view_new_dialog_get_property;
 	object_class->dispose      = gal_view_new_dialog_dispose;
@@ -127,8 +119,8 @@ gal_view_new_dialog_dispose (GObject *object)
 		g_object_unref(gal_view_new_dialog->gui);
 	gal_view_new_dialog->gui = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (gal_view_new_dialog_parent_class)->dispose)
+		(* G_OBJECT_CLASS (gal_view_new_dialog_parent_class)->dispose) (object);
 }
 
 GtkWidget*
diff --git a/widgets/menus/gal-view.c b/widgets/menus/gal-view.c
index 36c325aefd..30b9a683f3 100644
--- a/widgets/menus/gal-view.c
+++ b/widgets/menus/gal-view.c
@@ -27,15 +27,13 @@
 
 #include "gal-view.h"
 
-#define PARENT_TYPE G_TYPE_OBJECT
+G_DEFINE_TYPE (GalView, gal_view, G_TYPE_OBJECT)
 
 #define d(x)
 
 d(static gint depth = 0;)
 
 
-static GObjectClass *gal_view_parent_class;
-
 enum {
 	CHANGED,
 	LAST_SIGNAL
@@ -177,11 +175,10 @@ gal_view_changed       (GalView *view)
 }
 
 static void
-gal_view_class_init      (GObjectClass *object_class)
+gal_view_class_init      (GalViewClass *klass)
 {
-	GalViewClass *klass   = GAL_VIEW_CLASS(object_class);
-	gal_view_parent_class = g_type_class_ref (PARENT_TYPE);
-	
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
 	klass->edit           = NULL;     
 	klass->load           = NULL;     
 	klass->save           = NULL;     
@@ -205,4 +202,3 @@ gal_view_init      (GalView *view)
 {
 }
 
-E_MAKE_TYPE(gal_view, "GalView", GalView, gal_view_class_init, gal_view_init, PARENT_TYPE)
diff --git a/widgets/misc/e-canvas-background.c b/widgets/misc/e-canvas-background.c
index 02f8f1675c..334b01f232 100644
--- a/widgets/misc/e-canvas-background.c
+++ b/widgets/misc/e-canvas-background.c
@@ -38,7 +38,9 @@
 
 #include "e-canvas-background.h"
 
-#define PARENT_OBJECT_TYPE gnome_canvas_item_get_type ()
+/* workaround for avoiding API broken */
+#define ecb_get_type e_canvas_background_get_type
+G_DEFINE_TYPE (ECanvasBackground, ecb, GNOME_TYPE_CANVAS_ITEM)
 
 #define d(x)
 
@@ -55,8 +57,6 @@ struct _ECanvasBackgroundPrivate {
 	guint needs_redraw : 1;
 };
 
-static GnomeCanvasItemClass *parent_class;
-
 enum {
 	STYLE_SET,
 	LAST_SIGNAL
@@ -131,8 +131,8 @@ ecb_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
 	ArtPoint o1, o2;
 	ECanvasBackground *ecb = E_CANVAS_BACKGROUND (item);
 
-	if (GNOME_CANVAS_ITEM_CLASS (parent_class)->update)
-		GNOME_CANVAS_ITEM_CLASS (parent_class)->update (item, affine, clip_path, flags);
+	if (GNOME_CANVAS_ITEM_CLASS (ecb_parent_class)->update)
+		GNOME_CANVAS_ITEM_CLASS (ecb_parent_class)->update (item, affine, clip_path, flags);
 
 	o1.x = item->x1;
 	o1.y = item->y1;
@@ -191,8 +191,8 @@ ecb_dispose (GObject *object)
 		ecb->priv = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-                G_OBJECT_CLASS (parent_class)->dispose (object);
+	if (G_OBJECT_CLASS (ecb_parent_class)->dispose)
+                G_OBJECT_CLASS (ecb_parent_class)->dispose (object);
 }
 
 static void
@@ -316,10 +316,8 @@ ecb_get_property (GObject *object,
 }
 
 static void
-ecb_init (GnomeCanvasItem *item)
+ecb_init (ECanvasBackground *ecb)
 {
-	ECanvasBackground *ecb = E_CANVAS_BACKGROUND (item);
-
 	ecb->priv               = g_new (ECanvasBackgroundPrivate, 1);
 
 	ecb->priv->color.pixel  = 0;
@@ -339,8 +337,8 @@ ecb_realize (GnomeCanvasItem *item)
 {
 	ECanvasBackground *ecb = E_CANVAS_BACKGROUND (item);
 	
-	if (GNOME_CANVAS_ITEM_CLASS (parent_class)->realize)
-                GNOME_CANVAS_ITEM_CLASS (parent_class)->realize (item);
+	if (GNOME_CANVAS_ITEM_CLASS (ecb_parent_class)->realize)
+                GNOME_CANVAS_ITEM_CLASS (ecb_parent_class)->realize (item);
 
 	ecb->priv->gc = gdk_gc_new (item->canvas->layout.bin_window);
 	get_color (ecb);
@@ -361,8 +359,8 @@ ecb_unrealize (GnomeCanvasItem *item)
 	g_object_unref (ecb->priv->gc);
 	ecb->priv->gc = NULL;
 
-	if (GNOME_CANVAS_ITEM_CLASS (parent_class)->unrealize)
-                GNOME_CANVAS_ITEM_CLASS (parent_class)->unrealize (item);
+	if (GNOME_CANVAS_ITEM_CLASS (ecb_parent_class)->unrealize)
+                GNOME_CANVAS_ITEM_CLASS (ecb_parent_class)->unrealize (item);
 }
 
 static void
@@ -433,12 +431,10 @@ ecb_style_set (ECanvasBackground *ecb, GtkStyle *previous_style)
 }
 
 static void
-ecb_class_init (GObjectClass *object_class)
+ecb_class_init (ECanvasBackgroundClass *ecb_class)
 {
-	GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
-	ECanvasBackgroundClass *ecb_class = (ECanvasBackgroundClass *) object_class;
-	
-	parent_class                = g_type_class_ref (PARENT_OBJECT_TYPE);
+	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (ecb_class);
+	GObjectClass *object_class = G_OBJECT_CLASS (ecb_class);
 	
 	object_class->dispose       = ecb_dispose;
 	object_class->set_property  = ecb_set_property;
@@ -517,9 +513,3 @@ ecb_class_init (GObjectClass *object_class)
 			      G_TYPE_NONE, 1, GTK_TYPE_STYLE);
 }
 
-E_MAKE_TYPE (e_canvas_background,
-	     "ECanvasBackground",
-	     ECanvasBackground,
-	     ecb_class_init,
-	     ecb_init,
-	     PARENT_OBJECT_TYPE)
diff --git a/widgets/misc/e-canvas-vbox.c b/widgets/misc/e-canvas-vbox.c
index 20562bc039..a53da60710 100644
--- a/widgets/misc/e-canvas-vbox.c
+++ b/widgets/misc/e-canvas-vbox.c
@@ -50,9 +50,6 @@ static void e_canvas_vbox_real_add_item(ECanvasVbox *e_canvas_vbox, GnomeCanvasI
 static void e_canvas_vbox_real_add_item_start(ECanvasVbox *e_canvas_vbox, GnomeCanvasItem *item);
 static void e_canvas_vbox_resize_children (GnomeCanvasItem *item);
 
-#define PARENT_TYPE GNOME_TYPE_CANVAS_GROUP
-static GnomeCanvasGroupClass *parent_class = NULL;
-
 /* The arguments we take */
 enum {
 	PROP_0,
@@ -62,12 +59,7 @@ enum {
 	PROP_SPACING
 };
 
-E_MAKE_TYPE (e_canvas_vbox,
-	     "ECanvasVbox",
-	     ECanvasVbox,
-	     e_canvas_vbox_class_init,
-	     e_canvas_vbox_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ECanvasVbox, e_canvas_vbox, GNOME_TYPE_CANVAS_GROUP)
 
 static void
 e_canvas_vbox_class_init (ECanvasVboxClass *klass)
@@ -78,8 +70,6 @@ e_canvas_vbox_class_init (ECanvasVboxClass *klass)
 	object_class = (GObjectClass*) klass;
 	item_class = (GnomeCanvasItemClass *) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	klass->add_item       = e_canvas_vbox_real_add_item;
 	klass->add_item_start = e_canvas_vbox_real_add_item_start;
  
@@ -206,7 +196,7 @@ e_canvas_vbox_dispose (GObject *object)
 		vbox->items = NULL;
 	}
 
-	G_OBJECT_CLASS(parent_class)->dispose (object);
+	G_OBJECT_CLASS(e_canvas_vbox_parent_class)->dispose (object);
 }
 
 static gint
@@ -239,8 +229,8 @@ e_canvas_vbox_event (GnomeCanvasItem *item, GdkEvent *event)
 		break;
 	}
 	if (!return_val) {
-		if (GNOME_CANVAS_ITEM_CLASS(parent_class)->event)
-			return GNOME_CANVAS_ITEM_CLASS (parent_class)->event (item, event);
+		if (GNOME_CANVAS_ITEM_CLASS(e_canvas_vbox_parent_class)->event)
+			return GNOME_CANVAS_ITEM_CLASS (e_canvas_vbox_parent_class)->event (item, event);
 	}
 	return return_val;
 	
@@ -249,8 +239,8 @@ e_canvas_vbox_event (GnomeCanvasItem *item, GdkEvent *event)
 static void
 e_canvas_vbox_realize (GnomeCanvasItem *item)
 {
-	if (GNOME_CANVAS_ITEM_CLASS(parent_class)->realize)
-		(* GNOME_CANVAS_ITEM_CLASS(parent_class)->realize) (item);
+	if (GNOME_CANVAS_ITEM_CLASS(e_canvas_vbox_parent_class)->realize)
+		(* GNOME_CANVAS_ITEM_CLASS(e_canvas_vbox_parent_class)->realize) (item);
 	
 	e_canvas_vbox_resize_children(item);
 	e_canvas_item_request_reflow(item);
diff --git a/widgets/misc/e-canvas.c b/widgets/misc/e-canvas.c
index dee5d27b6d..be6ae0d93c 100644
--- a/widgets/misc/e-canvas.c
+++ b/widgets/misc/e-canvas.c
@@ -53,9 +53,6 @@ static void e_canvas_style_set      (GtkWidget        *widget,
 
 static int emit_event (GnomeCanvas *canvas, GdkEvent *event);
 
-#define PARENT_TYPE GNOME_TYPE_CANVAS
-static GnomeCanvasClass *parent_class = NULL;
-
 #define d(x)
 
 enum {
@@ -65,12 +62,7 @@ enum {
 
 static guint e_canvas_signals [LAST_SIGNAL] = { 0, };
 
-E_MAKE_TYPE (e_canvas,
-	     "ECanvas",
-	     ECanvas,
-	     e_canvas_class_init,
-	     e_canvas_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ECanvas, e_canvas, GNOME_TYPE_CANVAS)
 
 static void
 e_canvas_class_init (ECanvasClass *klass)
@@ -81,8 +73,6 @@ e_canvas_class_init (ECanvasClass *klass)
 	object_class                       = (GObjectClass*) klass;
 	widget_class                       = (GtkWidgetClass *) klass;
 
-	parent_class                       = g_type_class_ref (PARENT_TYPE);
-
 	object_class->dispose              = e_canvas_dispose;
 
 	widget_class->key_press_event      = e_canvas_key;
@@ -146,8 +136,8 @@ e_canvas_dispose (GObject *object)
 
 	e_canvas_hide_tooltip(canvas);
 
-	if ((G_OBJECT_CLASS (parent_class))->dispose)
-		(*(G_OBJECT_CLASS (parent_class))->dispose) (object);
+	if ((G_OBJECT_CLASS (e_canvas_parent_class))->dispose)
+		(*(G_OBJECT_CLASS (e_canvas_parent_class))->dispose) (object);
 }
 
 GtkWidget *
@@ -683,8 +673,8 @@ e_canvas_realize (GtkWidget *widget)
 {
 	ECanvas *ecanvas = E_CANVAS (widget);
 
-	if (GTK_WIDGET_CLASS (parent_class)->realize)
-		(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
+	if (GTK_WIDGET_CLASS (e_canvas_parent_class)->realize)
+		(* GTK_WIDGET_CLASS (e_canvas_parent_class)->realize) (widget);
 
 	gdk_window_set_back_pixmap (GTK_LAYOUT (widget)->bin_window, NULL, FALSE);
 
@@ -703,8 +693,8 @@ e_canvas_unrealize (GtkWidget *widget)
 
 	gtk_im_context_set_client_window (ecanvas->im_context, NULL);
 
-	if (GTK_WIDGET_CLASS (parent_class)->unrealize)
-		(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+	if (GTK_WIDGET_CLASS (e_canvas_parent_class)->unrealize)
+		(* GTK_WIDGET_CLASS (e_canvas_parent_class)->unrealize) (widget);
 }
 
 static void
diff --git a/widgets/misc/e-printable.c b/widgets/misc/e-printable.c
index b9d9221404..3792c79711 100644
--- a/widgets/misc/e-printable.c
+++ b/widgets/misc/e-printable.c
@@ -34,10 +34,7 @@
 
 #define EP_CLASS(e) ((EPrintableClass *)((GtkObject *)e)->klass)
 
-#define PARENT_TYPE GTK_TYPE_OBJECT
-					  
-
-static GtkObjectClass *e_printable_parent_class;
+G_DEFINE_TYPE (EPrintable, e_printable, GTK_TYPE_OBJECT)
 
 enum {
 	PRINT_PAGE,
@@ -51,10 +48,9 @@ enum {
 static guint e_printable_signals [LAST_SIGNAL] = { 0, };
 
 static void
-e_printable_class_init (GtkObjectClass *object_class)
+e_printable_class_init (EPrintableClass *klass)
 {
-	EPrintableClass *klass = E_PRINTABLE_CLASS(object_class);
-	e_printable_parent_class = g_type_class_ref (PARENT_TYPE);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 	
 	e_printable_signals [PRINT_PAGE] =
 		g_signal_new ("print_page",
@@ -111,13 +107,11 @@ e_printable_class_init (GtkObjectClass *object_class)
 	klass->will_fit = NULL;
 }
 
-
-E_MAKE_TYPE (e_printable,
-	     "EPrintable",
-	     EPrintable,
-	     e_printable_class_init,
-	     NULL,
-	     PARENT_TYPE)
+static void
+e_printable_init (EPrintable *e_printable)
+{
+	/* nothing to do */
+}
 
 EPrintable *
 e_printable_new(void)
diff --git a/widgets/misc/e-reflow-model.c b/widgets/misc/e-reflow-model.c
index a96b17fc68..09630133e1 100644
--- a/widgets/misc/e-reflow-model.c
+++ b/widgets/misc/e-reflow-model.c
@@ -29,15 +29,13 @@
 
 #include "e-reflow-model.h"
 
-#define PARENT_TYPE G_TYPE_OBJECT
+G_DEFINE_TYPE (EReflowModel, e_reflow_model, G_TYPE_OBJECT)
 
 #define d(x)
 
 d(static gint depth = 0;)
 
 
-static GObjectClass *e_reflow_model_parent_class;
-
 enum {
 	MODEL_CHANGED,
 	COMPARISON_CHANGED,
@@ -153,10 +151,9 @@ e_reflow_model_reincarnate (EReflowModel *e_reflow_model, int n, GnomeCanvasItem
 }
 
 static void
-e_reflow_model_class_init (GObjectClass *object_class)
+e_reflow_model_class_init (EReflowModelClass *klass)
 {
-	EReflowModelClass *klass = E_REFLOW_MODEL_CLASS(object_class);
-	e_reflow_model_parent_class = g_type_class_ref (PARENT_TYPE);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	e_reflow_model_signals [MODEL_CHANGED] =
 		g_signal_new ("model_changed",
@@ -217,13 +214,10 @@ e_reflow_model_class_init (GObjectClass *object_class)
 }
 
 static void
-e_reflow_model_init (GObject *object)
+e_reflow_model_init (EReflowModel *e_reflow_model)
 {
 }
 
-E_MAKE_TYPE(e_reflow_model, "EReflowModel", EReflowModel,
-	    e_reflow_model_class_init, e_reflow_model_init, PARENT_TYPE)
-
 #if d(!)0
 static void
 print_tabs (void)
diff --git a/widgets/misc/e-reflow.c b/widgets/misc/e-reflow.c
index 594ea1f87b..abae2d54d2 100644
--- a/widgets/misc/e-reflow.c
+++ b/widgets/misc/e-reflow.c
@@ -56,8 +56,7 @@ static void e_reflow_resize_children (GnomeCanvasItem *item);
 #define E_REFLOW_BORDER_WIDTH 7
 #define E_REFLOW_FULL_GUTTER (E_REFLOW_DIVIDER_WIDTH + E_REFLOW_BORDER_WIDTH * 2)
 
-#define PARENT_TYPE GNOME_TYPE_CANVAS_GROUP
-static GnomeCanvasGroupClass *parent_class = NULL;
+G_DEFINE_TYPE (EReflow, e_reflow, GNOME_TYPE_CANVAS_GROUP)
 
 /* The arguments we take */
 enum {
@@ -825,7 +824,7 @@ e_reflow_dispose (GObject *object)
 		reflow->sorter = NULL;
 	}
 
-	G_OBJECT_CLASS(parent_class)->dispose (object);
+	G_OBJECT_CLASS(e_reflow_parent_class)->dispose (object);
 }
 
 static void
@@ -838,8 +837,8 @@ e_reflow_realize (GnomeCanvasItem *item)
 
 	reflow = E_REFLOW (item);
 
-	if (GNOME_CANVAS_ITEM_CLASS(parent_class)->realize)
-		(* GNOME_CANVAS_ITEM_CLASS(parent_class)->realize) (item);
+	if (GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->realize)
+		(* GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->realize) (item);
 	
 	reflow->arrow_cursor = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW);
 	reflow->default_cursor = gdk_cursor_new (GDK_LEFT_PTR);
@@ -893,8 +892,8 @@ e_reflow_unrealize (GnomeCanvasItem *item)
 	disconnect_set_adjustment (reflow);
 	disconnect_adjustment (reflow);
 
-	if (GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize)
-		(* GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize) (item);
+	if (GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->unrealize)
+		(* GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->unrealize) (item);
 }
 
 static gboolean
@@ -1108,8 +1107,8 @@ e_reflow_event (GnomeCanvasItem *item, GdkEvent *event)
 		}
 	if (return_val)
 		return return_val;
-	else if (GNOME_CANVAS_ITEM_CLASS( parent_class )->event)
-		return (* GNOME_CANVAS_ITEM_CLASS( parent_class )->event) (item, event);
+	else if (GNOME_CANVAS_ITEM_CLASS( e_reflow_parent_class )->event)
+		return (* GNOME_CANVAS_ITEM_CLASS( e_reflow_parent_class )->event) (item, event);
 	else
 		return FALSE;
 }
@@ -1123,8 +1122,8 @@ static void e_reflow_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
 	int i;
 	double column_width;
 
-	if (GNOME_CANVAS_ITEM_CLASS(parent_class)->draw)
-		GNOME_CANVAS_ITEM_CLASS(parent_class)->draw (item, drawable, x, y, width, height);
+	if (GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->draw)
+		GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->draw (item, drawable, x, y, width, height);
 	column_width = reflow->column_width;
 	running_width = E_REFLOW_BORDER_WIDTH + column_width + E_REFLOW_BORDER_WIDTH;
 	x_rect = running_width;
@@ -1196,8 +1195,8 @@ e_reflow_update (GnomeCanvasItem *item, double affine[6], ArtSVP *clip_path, gin
 
 	reflow = E_REFLOW (item);
 
-	if (GNOME_CANVAS_ITEM_CLASS(parent_class)->update)
-		GNOME_CANVAS_ITEM_CLASS(parent_class)->update (item, affine, clip_path, flags);
+	if (GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->update)
+		GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->update (item, affine, clip_path, flags);
 	
 	x0 = item->x1;
 	y0 = item->y1;
@@ -1280,8 +1279,8 @@ e_reflow_point (GnomeCanvasItem *item,
 
 	*actual_item = NULL;
 
-	if (GNOME_CANVAS_ITEM_CLASS(parent_class)->point)
-		distance = GNOME_CANVAS_ITEM_CLASS(parent_class)->point (item, x, y, cx, cy, actual_item);
+	if (GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->point)
+		distance = GNOME_CANVAS_ITEM_CLASS(e_reflow_parent_class)->point (item, x, y, cx, cy, actual_item);
 	if ((int) (distance * item->canvas->pixels_per_unit + 0.5) <= item->canvas->close_enough && *actual_item)
 		return distance;
 	
@@ -1407,8 +1406,6 @@ e_reflow_class_init (EReflowClass *klass)
 	object_class = (GObjectClass*) klass;
 	item_class = (GnomeCanvasItemClass *) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->set_property  = e_reflow_set_property;
 	object_class->get_property  = e_reflow_get_property;
 	object_class->dispose  = e_reflow_dispose;
@@ -1546,9 +1543,3 @@ e_reflow_init (EReflow *reflow)
 	e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM(reflow), e_reflow_reflow);
 }
 
-E_MAKE_TYPE (e_reflow,
-	     "EReflow",
-	     EReflow,
-	     e_reflow_class_init,
-	     e_reflow_init,
-	     PARENT_TYPE)
diff --git a/widgets/misc/e-selection-model-array.c b/widgets/misc/e-selection-model-array.c
index 3f91ba42cc..f73a67faf2 100644
--- a/widgets/misc/e-selection-model-array.c
+++ b/widgets/misc/e-selection-model-array.c
@@ -30,9 +30,7 @@
 
 #include "e-selection-model-array.h"
 
-#define PARENT_TYPE e_selection_model_get_type ()
-
-static ESelectionModelClass *parent_class;
+G_DEFINE_TYPE (ESelectionModelArray, e_selection_model_array, e_selection_model_get_type())
 
 enum {
 	PROP_0,
@@ -142,8 +140,8 @@ esma_dispose (GObject *object)
 		esma->eba = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_selection_model_array_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_selection_model_array_parent_class)->dispose) (object);
 }
 
 static void
@@ -513,8 +511,6 @@ e_selection_model_array_class_init (ESelectionModelArrayClass *klass)
 	GObjectClass *object_class;
 	ESelectionModelClass *esm_class;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class = G_OBJECT_CLASS(klass);
 	esm_class = E_SELECTION_MODEL_CLASS(klass);
 
@@ -557,5 +553,3 @@ e_selection_model_array_class_init (ESelectionModelArrayClass *klass)
 							   G_PARAM_READWRITE));
 }
 
-E_MAKE_TYPE(e_selection_model_array, "ESelectionModelArray", ESelectionModelArray,
-	    e_selection_model_array_class_init, e_selection_model_array_init, PARENT_TYPE)
diff --git a/widgets/misc/e-selection-model-simple.c b/widgets/misc/e-selection-model-simple.c
index ad33815135..e023f3cb89 100644
--- a/widgets/misc/e-selection-model-simple.c
+++ b/widgets/misc/e-selection-model-simple.c
@@ -28,10 +28,6 @@
 #include "e-selection-model-array.h"
 #include "e-selection-model-simple.h"
 
-#define PARENT_TYPE e_selection_model_array_get_type ()
-
-static ESelectionModelArray *parent_class;
-
 static gint esms_get_row_count (ESelectionModelArray *esma);
 
 static void
@@ -45,15 +41,12 @@ e_selection_model_simple_class_init (ESelectionModelSimpleClass *klass)
 {
 	ESelectionModelArrayClass *esma_class;
 
-	parent_class              = g_type_class_ref (PARENT_TYPE);
-
 	esma_class                = E_SELECTION_MODEL_ARRAY_CLASS(klass);
 
 	esma_class->get_row_count = esms_get_row_count;
 }
 
-E_MAKE_TYPE(e_selection_model_simple, "ESelectionModelSimple", ESelectionModelSimple,
-	    e_selection_model_simple_class_init, e_selection_model_simple_init, PARENT_TYPE)
+G_DEFINE_TYPE (ESelectionModelSimple, e_selection_model_simple, e_selection_model_array_get_type())
 
 /** 
  * e_selection_model_simple_new
diff --git a/widgets/misc/e-selection-model.c b/widgets/misc/e-selection-model.c
index 21eba118f2..5c24d44f49 100644
--- a/widgets/misc/e-selection-model.c
+++ b/widgets/misc/e-selection-model.c
@@ -31,9 +31,7 @@
 
 #include "e-selection-model.h"
 
-#define PARENT_TYPE G_TYPE_OBJECT
-
-static GObjectClass *e_selection_model_parent_class;
+G_DEFINE_TYPE (ESelectionModel, e_selection_model, G_TYPE_OBJECT)
 
 enum {
 	CURSOR_CHANGED,
@@ -79,8 +77,8 @@ esm_dispose (GObject *object)
 
 	drop_sorter(esm);
 
-	if (e_selection_model_parent_class->dispose)
-		(* e_selection_model_parent_class->dispose) (object);
+	if (G_OBJECT_CLASS (e_selection_model_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_selection_model_parent_class)->dispose) (object);
 }
 
 static void
@@ -142,8 +140,6 @@ e_selection_model_class_init (ESelectionModelClass *klass)
 {
 	GObjectClass *object_class;
 
-	e_selection_model_parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class = G_OBJECT_CLASS(klass);
 
 	object_class->dispose = esm_dispose;
@@ -233,9 +229,6 @@ e_selection_model_class_init (ESelectionModelClass *klass)
 							   G_PARAM_READWRITE));
 }
 
-E_MAKE_TYPE(e_selection_model, "ESelectionModel", ESelectionModel,
-	    e_selection_model_class_init, e_selection_model_init, PARENT_TYPE)
-
 /** 
  * e_selection_model_is_row_selected
  * @selection: #ESelectionModel to check
diff --git a/widgets/table/ChangeLog b/widgets/table/ChangeLog
index b0313a186b..b651b441bb 100644
--- a/widgets/table/ChangeLog
+++ b/widgets/table/ChangeLog
@@ -1,3 +1,67 @@
+2007-07-27  Hiroyuki Ikezoe  <poincare@ikezoe.net>
+
+	* e-cell-tree.c:
+	* e-cell-hbox.c:
+	* e-cell-popup.c:
+	* e-tree-simple.c:
+	* e-cell-date.c:
+	* e-tree-table-adapter.c:
+	* e-tree-scrolled.c:
+	* e-table-field-chooser.c:
+	* e-table-header-item.c:
+	* e-cell-pixbuf.c:
+	* e-table-subset-variable.c:
+	* e-tree-selection-model.c:
+	* e-tree-sorted-variable.c:
+	* e-tree-memory-callbacks.c:
+	* e-table-sorted.c:
+	* e-table-subset.c:
+	* e-table-search.c:
+	* e-table-extras.c:
+	* e-table-one.c:
+	* e-table-config-field.c:
+	* e-cell-combo.c:
+	* e-table-item.c:
+	* e-cell-toggle.c:
+	* e-tree.c:
+	* e-table-col.c:
+	* e-table-field-chooser-item.c:
+	* e-table-sort-info.c:
+	* e-table-simple.c:
+	* e-table-column.c:
+	* e-table-scrolled.c:
+	* e-tree-model.c:
+	* e-table-column-specification.c:
+	* e-table-group-container.c:
+	* e-cell-text.c:
+	* e-table-specification.c:
+	* e-cell-number.c:
+	* e-table-sorted-variable.c:
+	* e-table-selection-model.c:
+	* e-table-memory-callbacks.c:
+	* e-cell.c:
+	* e-table-click-to-add.c:
+	* e-cell-float.c:
+	* e-table-field-chooser-dialog.c:
+	* e-tree-memory.c:
+	* e-cell-progress.c:
+	* e-table-group-leaf.c:
+	* e-table.c:
+	* e-table-sorter.c:
+	* e-table-header.c:
+	* e-table-group.c:
+	* e-table-model.c:
+	* e-cell-size.c:
+	* e-table-without.c:
+	* e-table-config.c:
+	* e-cell-vbox.c:
+	* e-tree-sorted.c:
+	* e-table-state.c:
+	* e-table-memory-store.c:
+	* e-table-memory.c:
+	* e-cell-spin-button.c:
+	* e-cell-checkbox.c: Use G_DEFINE_TYPE instead of E_MAKE_TYPE.
+
 2007-07-27  Matthew Barnes  <mbarnes@redhat.com>
 
 	* Makefile.am:
diff --git a/widgets/table/e-cell-checkbox.c b/widgets/table/e-cell-checkbox.c
index 8f3c8083fe..7054b9c27d 100644
--- a/widgets/table/e-cell-checkbox.c
+++ b/widgets/table/e-cell-checkbox.c
@@ -34,7 +34,7 @@
 #include "check-empty.xpm"
 #include "check-filled.xpm"
 
-#define PARENT_TYPE e_cell_toggle_get_type ()
+G_DEFINE_TYPE (ECellCheckbox, e_cell_checkbox, E_CELL_TOGGLE_TYPE)
 
 static GdkPixbuf *checks [2];
 
@@ -60,15 +60,19 @@ ecc_print (ECellView *ecell_view, GtkPrintContext *context,
 }
 
 static void
-e_cell_checkbox_class_init (GtkObjectClass *object_class)
+e_cell_checkbox_class_init (ECellCheckboxClass *klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
+	ECellClass *ecc = E_CELL_CLASS (klass);
+
 	ecc->print = ecc_print;
 	checks [0] = gdk_pixbuf_new_from_xpm_data (check_empty_xpm);
 	checks [1] = gdk_pixbuf_new_from_xpm_data (check_filled_xpm);
 }
 
-E_MAKE_TYPE(e_cell_checkbox, "ECellCheckbox", ECellCheckbox, e_cell_checkbox_class_init, NULL, PARENT_TYPE)
+static void
+e_cell_checkbox_init (ECellCheckbox *eccb)
+{
+}
 
 /**
  * e_cell_checkbox_new:
diff --git a/widgets/table/e-cell-combo.c b/widgets/table/e-cell-combo.c
index e7fc235a05..5a852d99bd 100644
--- a/widgets/table/e-cell-combo.c
+++ b/widgets/table/e-cell-combo.c
@@ -77,7 +77,7 @@
 #define E_CELL_COMBO_UTF8_KEY		"UTF-8-TEXT"
 
 
-static void e_cell_combo_class_init	(GObjectClass	*object_class);
+static void e_cell_combo_class_init	(ECellComboClass *klass);
 static void e_cell_combo_init		(ECellCombo	*ecc);
 static void e_cell_combo_dispose	(GObject	*object);
 
@@ -114,25 +114,17 @@ static int e_cell_combo_key_press	(GtkWidget	*popup_window,
 static void e_cell_combo_update_cell	(ECellCombo	*ecc);
 static void e_cell_combo_restart_edit	(ECellCombo	*ecc);
 
-
-static ECellPopupClass *parent_class;
-
-
-E_MAKE_TYPE (e_cell_combo, "ECellCombo", ECellCombo,
-	     e_cell_combo_class_init, e_cell_combo_init,
-	     e_cell_popup_get_type())
-
+G_DEFINE_TYPE (ECellCombo, e_cell_combo, E_CELL_POPUP_TYPE)
 
 static void
-e_cell_combo_class_init			(GObjectClass	*object_class)
+e_cell_combo_class_init			(ECellComboClass	*klass)
 {
-	ECellPopupClass *ecpc = (ECellPopupClass *) object_class;
+	ECellPopupClass *ecpc = E_CELL_POPUP_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->dispose = e_cell_combo_dispose;
 
 	ecpc->popup = e_cell_combo_do_popup;
-
-	parent_class = g_type_class_ref (E_CELL_POPUP_TYPE);
 }
 
 
@@ -228,7 +220,7 @@ e_cell_combo_dispose			(GObject *object)
 		gtk_widget_destroy (ecc->popup_window);
 	ecc->popup_window = NULL;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_cell_combo_parent_class)->dispose (object);
 }
 
 
diff --git a/widgets/table/e-cell-date.c b/widgets/table/e-cell-date.c
index 85f2324ad4..f40967c60e 100644
--- a/widgets/table/e-cell-date.c
+++ b/widgets/table/e-cell-date.c
@@ -33,15 +33,13 @@
 
 #include "e-cell-date.h"
 
-#define PARENT_TYPE e_cell_text_get_type ()
+G_DEFINE_TYPE (ECellDate, e_cell_date, E_CELL_TEXT_TYPE)
 
 #ifdef G_OS_WIN32
 /* The localtime() in Microsoft's C library *is* thread-safe */
 #define localtime_r(timep, result)  (localtime (timep) ? memcpy ((result), localtime (timep), sizeof (*(result))) : 0)
 #endif
 
-static ECellTextClass *parent_class;
-
 static char *
 ecd_get_text(ECellText *cell, ETableModel *model, int col, int row)
 {
@@ -118,18 +116,16 @@ ecd_free_text(ECellText *cell, char *text)
 }
 
 static void
-e_cell_date_class_init (GtkObjectClass *object_class)
+e_cell_date_class_init (ECellDateClass *klass)
 {
-	ECellTextClass *ectc = (ECellTextClass *) object_class;
-
-	parent_class = g_type_class_ref (PARENT_TYPE);
+	ECellTextClass *ectc = E_CELL_TEXT_CLASS (klass);
 
 	ectc->get_text  = ecd_get_text;
 	ectc->free_text = ecd_free_text;
 }
 
 static void
-e_cell_date_init (GtkObject *object)
+e_cell_date_init (ECellDate *ecd)
 {
 }
 
@@ -168,4 +164,3 @@ e_cell_date_new (const char *fontname, GtkJustification justify)
 	return (ECell *) ecd;
 }
 
-E_MAKE_TYPE(e_cell_date, "ECellDate", ECellDate, e_cell_date_class_init, e_cell_date_init, PARENT_TYPE)
diff --git a/widgets/table/e-cell-float.c b/widgets/table/e-cell-float.c
index 2ab6111a33..10a1682be3 100644
--- a/widgets/table/e-cell-float.c
+++ b/widgets/table/e-cell-float.c
@@ -34,9 +34,7 @@
 
 #include "e-cell-float.h"
 
-#define PARENT_TYPE e_cell_text_get_type ()
-
-static ECellTextClass *parent_class;
+G_DEFINE_TYPE (ECellFloat, e_cell_float, E_CELL_TEXT_TYPE)
 
 static char *
 ecf_get_text(ECellText *cell, ETableModel *model, int col, int row)
@@ -55,18 +53,16 @@ ecf_free_text(ECellText *cell, char *text)
 }
 
 static void
-e_cell_float_class_init (GtkObjectClass *object_class)
+e_cell_float_class_init (ECellFloatClass *klass)
 {
-	ECellTextClass *ectc = (ECellTextClass *) object_class;
-
-	parent_class = g_type_class_ref (PARENT_TYPE);
+	ECellTextClass *ectc = E_CELL_TEXT_CLASS (klass);
 
 	ectc->get_text  = ecf_get_text;
 	ectc->free_text = ecf_free_text;
 }
 
 static void
-e_cell_float_init (GtkObject *object)
+e_cell_float_init (ECellFloat *cell_float)
 {
 }
 
@@ -93,4 +89,3 @@ e_cell_float_new (const char *fontname, GtkJustification justify)
 	return (ECell *) ecn;
 }
 
-E_MAKE_TYPE(e_cell_float, "ECellFloat", ECellFloat, e_cell_float_class_init, e_cell_float_init, PARENT_TYPE)
diff --git a/widgets/table/e-cell-hbox.c b/widgets/table/e-cell-hbox.c
index f00ab3f4eb..58f8f7194b 100644
--- a/widgets/table/e-cell-hbox.c
+++ b/widgets/table/e-cell-hbox.c
@@ -41,9 +41,7 @@
 #include "e-cell-hbox.h"
 #include "e-table-item.h"
 
-#define PARENT_TYPE e_cell_get_type ()
-
-static ECellClass *parent_class;
+G_DEFINE_TYPE (ECellHbox, e_cell_hbox, E_CELL_TYPE)
 
 #define INDENT_AMOUNT 16
 #define MAX_CELL_SIZE 25
@@ -117,8 +115,8 @@ ecv_realize (ECellView *ecell_view)
 	for (i = 0; i < hbox_view->subcell_view_count; i++)
 		e_cell_realize (hbox_view->subcell_views[i]);
 
-	if (parent_class->realize)
-		(* parent_class->realize) (ecell_view);
+	if (E_CELL_CLASS (e_cell_hbox_parent_class)->realize)
+		(* E_CELL_CLASS (e_cell_hbox_parent_class)->realize) (ecell_view);
 }
 
 /*
@@ -134,8 +132,8 @@ ecv_unrealize (ECellView *ecv)
 	for (i = 0; i < hbox_view->subcell_view_count; i++)
 		e_cell_unrealize (hbox_view->subcell_views[i]);
 
-	if (parent_class->unrealize)
-		(* parent_class->unrealize) (ecv);
+	if (E_CELL_CLASS (e_cell_hbox_parent_class)->unrealize)
+		(* E_CELL_CLASS (e_cell_hbox_parent_class)->unrealize) (ecv);
 }
 
 /*
@@ -260,13 +258,14 @@ ecv_dispose (GObject *object)
 	ecv->subcells = NULL;
 	ecv->subcell_count = 0;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_cell_hbox_parent_class)->dispose (object);
 }
 
 static void
-e_cell_hbox_class_init (GObjectClass *object_class)
+e_cell_hbox_class_init (ECellHboxClass *klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	ECellClass *ecc = E_CELL_CLASS (klass);
 
 	object_class->dispose = ecv_dispose;
 
@@ -280,22 +279,16 @@ e_cell_hbox_class_init (GObjectClass *object_class)
 
 	ecc->max_width        = ecv_max_width;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 /* 	gal_a11y_e_cell_registry_add_cell_type (NULL, E_CELL_HBOX_TYPE, gal_a11y_e_cell_hbox_new); */
 }
 
 static void
-e_cell_hbox_init (GtkObject *object)
+e_cell_hbox_init (ECellHbox *ecv)
 {
-	ECellHbox *ecv = E_CELL_HBOX (object);
-
 	ecv->subcells = NULL;
 	ecv->subcell_count = 0;
 }
 
-E_MAKE_TYPE(e_cell_hbox, "ECellHbox", ECellHbox, e_cell_hbox_class_init, e_cell_hbox_init, PARENT_TYPE)
-
 /**
  * e_cell_hbox_new:
  * 
diff --git a/widgets/table/e-cell-number.c b/widgets/table/e-cell-number.c
index e32eca7fe3..02e3001a18 100644
--- a/widgets/table/e-cell-number.c
+++ b/widgets/table/e-cell-number.c
@@ -30,9 +30,7 @@
 
 #include "e-cell-number.h"
 
-#define PARENT_TYPE e_cell_text_get_type ()
-
-static ECellTextClass *parent_class;
+G_DEFINE_TYPE (ECellNumber, e_cell_number, E_CELL_TEXT_TYPE)
 
 static char *
 ecn_get_text(ECellText *cell, ETableModel *model, int col, int row)
@@ -47,18 +45,16 @@ ecn_free_text(ECellText *cell, char *text)
 }
 
 static void
-e_cell_number_class_init (GtkObjectClass *object_class)
+e_cell_number_class_init (ECellNumberClass *klass)
 {
-	ECellTextClass *ectc = (ECellTextClass *) object_class;
-
-	parent_class = g_type_class_ref (PARENT_TYPE);
+	ECellTextClass *ectc = E_CELL_TEXT_CLASS (klass);
 
 	ectc->get_text  = ecn_get_text;
 	ectc->free_text = ecn_free_text;
 }
 
 static void
-e_cell_number_init (GtkObject *object)
+e_cell_number_init (ECellNumber *cell_number)
 {
 }
 
@@ -85,4 +81,3 @@ e_cell_number_new (const char *fontname, GtkJustification justify)
 	return (ECell *) ecn;
 }
 
-E_MAKE_TYPE(e_cell_number, "ECellNumber", ECellNumber, e_cell_number_class_init, e_cell_number_init, PARENT_TYPE)
diff --git a/widgets/table/e-cell-pixbuf.c b/widgets/table/e-cell-pixbuf.c
index 8b341c48a9..d7a1c8c1e4 100644
--- a/widgets/table/e-cell-pixbuf.c
+++ b/widgets/table/e-cell-pixbuf.c
@@ -31,8 +31,7 @@
 #include <gtk/gtk.h>
 #include "e-cell-pixbuf.h"
 
-#define PARENT_TYPE E_CELL_TYPE
-static ECellClass *parent_class;
+G_DEFINE_TYPE (ECellPixbuf, e_cell_pixbuf, E_CELL_TYPE)
 
 typedef struct _ECellPixbufView ECellPixbufView;
 
@@ -290,8 +289,8 @@ pixbuf_max_width (ECellView *ecell_view, int model_col, int view_col)
 static void
 pixbuf_dispose (GObject *object)
 {
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_cell_pixbuf_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_cell_pixbuf_parent_class)->dispose) (object);
 }
 
 static void
@@ -353,19 +352,18 @@ pixbuf_get_property (GObject *object,
 }
 
 static void
-e_cell_pixbuf_init (GtkObject *object)
+e_cell_pixbuf_init (ECellPixbuf *ecp)
 {
-	ECellPixbuf *ecp = E_CELL_PIXBUF (object);
-
 	ecp->selected_column = -1;
 	ecp->focused_column = -1;
 	ecp->unselected_column = -1;
 }
 
 static void
-e_cell_pixbuf_class_init (GObjectClass *object_class)
+e_cell_pixbuf_class_init (ECellPixbufClass *klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	ECellClass *ecc = E_CELL_CLASS (klass);
 
 	object_class->dispose = pixbuf_dispose;
 	object_class->set_property = pixbuf_set_property;
@@ -380,8 +378,6 @@ e_cell_pixbuf_class_init (GObjectClass *object_class)
 	ecc->print_height = pixbuf_print_height;
 	ecc->max_width = pixbuf_max_width;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	g_object_class_install_property (object_class, PROP_SELECTED_COLUMN,
 					 g_param_spec_int ("selected_column",
 							   _("Selected Column"),
@@ -404,9 +400,3 @@ e_cell_pixbuf_class_init (GObjectClass *object_class)
 							   G_PARAM_READWRITE));
 }
 
-E_MAKE_TYPE (e_cell_pixbuf,
-	     "ECellPixbuf",
-	     ECellPixbuf,
-	     e_cell_pixbuf_class_init,
-	     e_cell_pixbuf_init,
-	     PARENT_TYPE)
diff --git a/widgets/table/e-cell-popup.c b/widgets/table/e-cell-popup.c
index c2c8c28554..a8a8d5c4ca 100644
--- a/widgets/table/e-cell-popup.c
+++ b/widgets/table/e-cell-popup.c
@@ -45,7 +45,7 @@
 #define E_CELL_POPUP_ARROW_YPAD		3
 
 
-static void	e_cell_popup_class_init	(GtkObjectClass	*object_class);
+static void	e_cell_popup_class_init	(ECellPopupClass *klass);
 static void	e_cell_popup_init	(ECellPopup	*ecp);
 static void	e_cell_popup_dispose	(GObject	*object);
 
@@ -115,19 +115,14 @@ static gint e_cell_popup_do_popup	(ECellPopupView	*ecp_view,
 					 int             row,
 					 int             model_col);
 
-static ECellClass *parent_class;
-
-
-E_MAKE_TYPE (e_cell_popup, "ECellPopup", ECellPopup, e_cell_popup_class_init,
-	     e_cell_popup_init, e_cell_get_type())
-
+G_DEFINE_TYPE (ECellPopup, e_cell_popup, E_CELL_TYPE)
 
 static void
-e_cell_popup_class_init		(GtkObjectClass	*object_class)
+e_cell_popup_class_init		(ECellPopupClass	*klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
+	ECellClass *ecc = E_CELL_CLASS (klass);
 
-	G_OBJECT_CLASS (object_class)->dispose = e_cell_popup_dispose;
+	G_OBJECT_CLASS (klass)->dispose = e_cell_popup_dispose;
 
 	ecc->new_view     = ecp_new_view;
 	ecc->kill_view    = ecp_kill_view;
@@ -144,7 +139,6 @@ e_cell_popup_class_init		(GtkObjectClass	*object_class)
 	ecc->show_tooltip = ecp_show_tooltip;
 	ecc->get_bg_color = ecp_get_bg_color;
 
-	parent_class = g_type_class_ref (E_CELL_TYPE);
 	gal_a11y_e_cell_registry_add_cell_type (NULL,
                                                 E_CELL_POPUP_TYPE,
                                                 gal_a11y_e_cell_popup_new);
@@ -187,7 +181,7 @@ e_cell_popup_dispose (GObject *object)
 		g_object_unref (ecp->child);
 	ecp->child = NULL;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_cell_popup_parent_class)->dispose (object);
 }
 
 
@@ -249,8 +243,8 @@ ecp_realize (ECellView *ecv)
 
 	e_cell_realize (ecp_view->child_view);
 
-	if (parent_class->realize)
-		(* parent_class->realize) (ecv);
+	if (E_CELL_CLASS (e_cell_popup_parent_class)->realize)
+		(* E_CELL_CLASS (e_cell_popup_parent_class)->realize) (ecv);
 }
 
 
@@ -264,8 +258,8 @@ ecp_unrealize (ECellView *ecv)
 
 	e_cell_unrealize (ecp_view->child_view);
 
-	if (parent_class->unrealize)
-		(* parent_class->unrealize) (ecv);
+	if (E_CELL_CLASS (e_cell_popup_parent_class)->unrealize)
+		(* E_CELL_CLASS (e_cell_popup_parent_class)->unrealize) (ecv);
 }
 
 
diff --git a/widgets/table/e-cell-progress.c b/widgets/table/e-cell-progress.c
index ee9b4c6f5c..c9b6b8baf8 100644
--- a/widgets/table/e-cell-progress.c
+++ b/widgets/table/e-cell-progress.c
@@ -39,7 +39,7 @@
 #include "e-cell-progress.h"
 #include "e-table-item.h"
 
-#define PARENT_TYPE e_cell_get_type ()
+G_DEFINE_TYPE (ECellProgress, e_cell_progress, E_CELL_TYPE)
 
 typedef struct {
 	ECellView    cell_view;
@@ -47,8 +47,6 @@ typedef struct {
 	GnomeCanvas *canvas;
 } ECellProgressView;
 
-static ECellClass *parent_class;
-
 static void
 eprog_queue_redraw (ECellProgressView *text_view, int view_col, int view_row)
 {
@@ -299,13 +297,14 @@ eprog_dispose (GObject *object)
 	g_free (eprog->image);
 	g_free (eprog->buffer);
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_cell_progress_parent_class)->dispose (object);
 }
 
 static void
-e_cell_progress_class_init (GObjectClass *object_class)
+e_cell_progress_class_init (ECellProgressClass *klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
+	ECellClass *ecc = E_CELL_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->dispose = eprog_dispose;
 
@@ -317,11 +316,13 @@ e_cell_progress_class_init (GObjectClass *object_class)
 	ecc->event      = eprog_event;
 	ecc->height     = eprog_height;
 	ecc->max_width  = eprog_max_width;
-
-	parent_class = g_type_class_ref (PARENT_TYPE);
 }
 
-E_MAKE_TYPE(e_cell_progress, "ECellProgress", ECellProgress, e_cell_progress_class_init, NULL, PARENT_TYPE)
+static void
+e_cell_progress_init (ECellProgress *eprog)
+{
+	/* nothing to do */
+}
 
 /**
  * e_cell_progress_construct:
diff --git a/widgets/table/e-cell-size.c b/widgets/table/e-cell-size.c
index e403bbc468..a945d3edd5 100644
--- a/widgets/table/e-cell-size.c
+++ b/widgets/table/e-cell-size.c
@@ -30,9 +30,7 @@
 
 #include "e-cell-size.h"
 
-#define PARENT_TYPE e_cell_text_get_type ()
-
-static ECellTextClass *parent_class;
+G_DEFINE_TYPE (ECellSize, e_cell_size, E_CELL_TEXT_TYPE)
 
 static char *
 ecd_get_text(ECellText *cell, ETableModel *model, int col, int row)
@@ -60,18 +58,16 @@ ecd_free_text(ECellText *cell, char *text)
 }
 
 static void
-e_cell_size_class_init (GtkObjectClass *object_class)
+e_cell_size_class_init (ECellSizeClass *klass)
 {
-	ECellTextClass *ectc = (ECellTextClass *) object_class;
-
-	parent_class = g_type_class_ref (PARENT_TYPE);
+	ECellTextClass *ectc = E_CELL_TEXT_CLASS (klass);
 
 	ectc->get_text  = ecd_get_text;
 	ectc->free_text = ecd_free_text;
 }
 
 static void
-e_cell_size_init (GtkObject *object)
+e_cell_size_init (ECellSize *e_cell_size)
 {
 }
 
@@ -110,4 +106,3 @@ e_cell_size_new (const char *fontname, GtkJustification justify)
 	return (ECell *) ecd;
 }
 
-E_MAKE_TYPE(e_cell_size, "ECellSize", ECellSize, e_cell_size_class_init, e_cell_size_init, PARENT_TYPE)
diff --git a/widgets/table/e-cell-spin-button.c b/widgets/table/e-cell-spin-button.c
index e7044a98a6..5cb1cac7ae 100644
--- a/widgets/table/e-cell-spin-button.c
+++ b/widgets/table/e-cell-spin-button.c
@@ -40,10 +40,10 @@
 #include "e-cell-spin-button.h"
 
 #define E_CELL_SPIN_BUTTON_ARROW_WIDTH  16
-#define PARENT_TYPE e_cell_get_type ()
+G_DEFINE_TYPE (ECellSpinButton, e_cell_spin_button, E_CELL_TYPE)
 
-static void e_cell_spin_button_class_init   (GObjectClass   *klass);
-static void e_cell_spin_button_init         (GtkObject        *object);
+static void e_cell_spin_button_class_init   (ECellSpinButtonClass *klass);
+static void e_cell_spin_button_init         (ECellSpinButton      *ecsb);
 
 static void         ecsb_dispose      (GObject	*object);
 
@@ -117,15 +117,14 @@ enum {
 };
 
 static guint    signals[LAST_SIGNAL] = { 0 };
-static ECell   *parent_class;
 
 static void 
-e_cell_spin_button_class_init     (GObjectClass   *klass)
+e_cell_spin_button_class_init     (ECellSpinButtonClass   *klass)
 {
-        ECellClass             *ecc    = (ECellClass *) klass;  
-	ECellSpinButtonClass   *ecsbc  = (ECellSpinButtonClass *) klass;
+        ECellClass *ecc = E_CELL_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
         
-        klass->dispose     = ecsb_dispose;
+        object_class->dispose = ecsb_dispose;
 
 	ecc->realize       = ecsb_realize;
 	ecc->unrealize     = ecsb_unrealize;
@@ -142,9 +141,7 @@ e_cell_spin_button_class_init     (GObjectClass   *klass)
 	ecc->max_width     = NULL;
 	ecc->show_tooltip  = ecsb_show_tooltip;
 
-	ecsbc->step        = NULL;
-
-        parent_class       = g_type_class_ref (E_CELL_TYPE);
+	klass->step        = NULL;
 
 	signals[STEP] =
 		g_signal_new ("step",
@@ -159,15 +156,10 @@ e_cell_spin_button_class_init     (GObjectClass   *klass)
 }
 
 static void 
-e_cell_spin_button_init           (GtkObject        *object)
+e_cell_spin_button_init           (ECellSpinButton *ecsb)
 {
-        ECellSpinButton   *ecsb;
-	
-	g_return_if_fail (object != NULL);
-	g_return_if_fail (M_IS_CELL_SPIN_BUTTON (object));
+	g_return_if_fail (M_IS_CELL_SPIN_BUTTON (ecsb));
 	
-	ecsb = E_CELL_SPIN_BUTTON (object);
-
 	ecsb->up_pressed    = FALSE;
 	ecsb->down_pressed  = FALSE;
 }
@@ -512,7 +504,7 @@ ecsb_dispose (GObject	*object)
 	g_return_if_fail (object != NULL);
 	g_return_if_fail (M_IS_CELL_SPIN_BUTTON (object));
 	
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_cell_spin_button_parent_class)->dispose (object);
 }
 
 ECell *
@@ -655,7 +647,3 @@ e_cell_spin_button_step_float  (ECellSpinButton       *ecsb,
 	g_free (str_value);
 }
 
-E_MAKE_TYPE (e_cell_spin_button, "ECellSpinButton", ECellSpinButton, 
-	     e_cell_spin_button_class_init, e_cell_spin_button_init, 
-	     PARENT_TYPE)
-
diff --git a/widgets/table/e-cell-text.c b/widgets/table/e-cell-text.c
index 90c9b4ac7e..b24f2240ef 100644
--- a/widgets/table/e-cell-text.c
+++ b/widgets/table/e-cell-text.c
@@ -108,7 +108,7 @@ static guint signals [LAST_SIGNAL] = { 0 };
 
 static GdkAtom clipboard_atom = GDK_NONE;
 
-#define PARENT_TYPE e_cell_get_type ()
+G_DEFINE_TYPE (ECellText, e_cell_text, E_CELL_TYPE)
 
 #define UTF8_ATOM  gdk_atom_intern ("UTF8_STRING", FALSE)
 
@@ -216,8 +216,6 @@ static void _insert (ECellTextView *text_view, char *string, int value);
 static void _delete_selection (ECellTextView *text_view);
 static PangoAttrList* build_attr_list (ECellTextView *text_view, int row, int text_length);
 
-static ECellClass *parent_class;
-
 char *
 e_cell_text_get_text (ECellText *cell, ETableModel *model, int col, int row)
 {
@@ -400,8 +398,8 @@ ect_realize (ECellView *ecell_view)
 
 	text_view->i_cursor = gdk_cursor_new (GDK_XTERM);
 	
-	if (parent_class->realize)
-		(* parent_class->realize) (ecell_view);
+	if (E_CELL_CLASS (e_cell_text_parent_class)->realize)
+		(* E_CELL_CLASS (e_cell_text_parent_class)->realize) (ecell_view);
 }
 
 /*
@@ -434,8 +432,8 @@ ect_unrealize (ECellView *ecv)
 		ect->colors = NULL;
 	}
 
-	if (parent_class->unrealize)
-		(* parent_class->unrealize) (ecv);
+	if (E_CELL_CLASS (e_cell_text_parent_class)->unrealize)
+		(* E_CELL_CLASS (e_cell_text_parent_class)->unrealize) (ecv);
 
 }
 
@@ -1648,7 +1646,7 @@ ect_finalize (GObject *object)
 
 	g_free (ect->font_name);
 
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_cell_text_parent_class)->finalize (object);
 }
 /* Set_arg handler for the text item */
 static void
@@ -1737,13 +1735,13 @@ static char *ellipsis_default = NULL;
 static gboolean use_ellipsis_default = TRUE;
 
 static void
-e_cell_text_class_init (GObjectClass *object_class)
+e_cell_text_class_init (ECellTextClass *klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
-	ECellTextClass *ectc = (ECellTextClass *) object_class;
+	ECellClass *ecc = E_CELL_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 	const char *ellipsis_env;
 
-	G_OBJECT_CLASS (object_class)->finalize = ect_finalize;
+	object_class->finalize = ect_finalize;
 
 	ecc->new_view   = ect_new_view;
 	ecc->kill_view  = ect_kill_view;
@@ -1764,15 +1762,13 @@ e_cell_text_class_init (GObjectClass *object_class)
 	ecc->show_tooltip = ect_show_tooltip;
 	ecc->get_bg_color = ect_get_bg_color;
 
-	ectc->get_text = ect_real_get_text;
-	ectc->free_text = ect_real_free_text;
-	ectc->set_value = ect_real_set_value;
+	klass->get_text = ect_real_get_text;
+	klass->free_text = ect_real_free_text;
+	klass->set_value = ect_real_set_value;
 
 	object_class->get_property = ect_get_property;
 	object_class->set_property = ect_set_property;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	signals [TEXT_INSERTED] = 
 		g_signal_new ("text_inserted",
 			      G_TYPE_FROM_CLASS (object_class),
@@ -1948,8 +1944,6 @@ e_cell_text_init (ECellText *ect)
 	ect->editable = TRUE;
 }
 
-E_MAKE_TYPE(e_cell_text, "ECellText", ECellText, e_cell_text_class_init, e_cell_text_init, PARENT_TYPE)
-
 /**
  * e_cell_text_construct:
  * @cell: The cell to construct
diff --git a/widgets/table/e-cell-toggle.c b/widgets/table/e-cell-toggle.c
index a5b396333d..ec5dc132f6 100644
--- a/widgets/table/e-cell-toggle.c
+++ b/widgets/table/e-cell-toggle.c
@@ -35,7 +35,7 @@
 #include "e-cell-toggle.h"
 #include "e-table-item.h"
 
-#define PARENT_TYPE e_cell_get_type ()
+G_DEFINE_TYPE (ECellToggle, e_cell_toggle, E_CELL_TYPE)
 
 typedef struct {
 	ECellView     cell_view;
@@ -44,8 +44,6 @@ typedef struct {
 	GdkPixmap   **pixmap_cache;
 } ECellToggleView;
 
-static ECellClass *parent_class;
-
 #define CACHE_SEQ_COUNT 6
 
 /*
@@ -388,15 +386,15 @@ etog_finalize (GObject *object)
 	etog->images = NULL;
 	etog->n_states = 0;
 
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_cell_toggle_parent_class)->finalize (object);
 }
 
 static void
-e_cell_toggle_class_init (GtkObjectClass *object_class)
+e_cell_toggle_class_init (ECellToggleClass *klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
+	ECellClass *ecc = E_CELL_CLASS (klass);
 
-	G_OBJECT_CLASS (object_class)->finalize = etog_finalize;
+	G_OBJECT_CLASS (klass)->finalize = etog_finalize;
 
 	ecc->new_view   = etog_new_view;
 	ecc->kill_view  = etog_kill_view;
@@ -410,23 +408,18 @@ e_cell_toggle_class_init (GtkObjectClass *object_class)
 	ecc->max_width  = etog_max_width;
 	ecc->style_set  = etog_style_set;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
 	gal_a11y_e_cell_registry_add_cell_type (NULL,
 					         E_CELL_TOGGLE_TYPE,
                                                 gal_a11y_e_cell_toggle_new);
 }
 
 static void
-e_cell_toggle_init (GtkObject *object)
+e_cell_toggle_init (ECellToggle *etog)
 {
-	ECellToggle *etog = (ECellToggle *) object;
-
 	etog->images = NULL;
 	etog->n_states = 0;
 }
 
-E_MAKE_TYPE(e_cell_toggle, "ECellToggle", ECellToggle, e_cell_toggle_class_init, e_cell_toggle_init, PARENT_TYPE)
-
 /**
  * e_cell_toggle_construct:
  * @etog: a fresh ECellToggle object
diff --git a/widgets/table/e-cell-tree.c b/widgets/table/e-cell-tree.c
index 1751176637..860133dfa7 100644
--- a/widgets/table/e-cell-tree.c
+++ b/widgets/table/e-cell-tree.c
@@ -51,7 +51,8 @@
 #include "tree-unexpanded.xpm"
 
 
-#define PARENT_TYPE e_cell_get_type ()
+G_DEFINE_TYPE (ECellTree, e_cell_tree, E_CELL_TYPE)
+
 
 typedef struct {
 	ECellView    cell_view;
@@ -65,8 +66,6 @@ typedef struct {
 
 } ECellTreeView;
 
-static ECellClass *parent_class;
-
 #define INDENT_AMOUNT 16
 
 ECellView *
@@ -183,8 +182,8 @@ ect_realize (ECellView *ecell_view)
 				    GDK_JOIN_MITER);
 	gdk_gc_set_dashes (tree_view->gc, 0, (gint8 *)"\1\1", 2);
 
-	if (parent_class->realize)
-		(* parent_class->realize) (ecell_view);
+	if (E_CELL_CLASS (e_cell_tree_parent_class)->realize)
+		(* E_CELL_CLASS (e_cell_tree_parent_class)->realize) (ecell_view);
 }
 
 /*
@@ -201,8 +200,8 @@ ect_unrealize (ECellView *ecv)
 	g_object_unref (tree_view->gc);
 	tree_view->gc = NULL;
 
-	if (parent_class->unrealize)
-		(* parent_class->unrealize) (ecv);
+	if (E_CELL_CLASS (e_cell_tree_parent_class)->unrealize)
+		(* E_CELL_CLASS (e_cell_tree_parent_class)->unrealize) (ecv);
 }
 
 static void
@@ -818,13 +817,14 @@ ect_dispose (GObject *object)
 		g_object_unref (ect->closed_pixbuf);
 	ect->closed_pixbuf = NULL;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_cell_tree_parent_class)->dispose (object);
 }
 
 static void
-e_cell_tree_class_init (GObjectClass *object_class)
+e_cell_tree_class_init (ECellTreeClass *klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	ECellClass *ecc = E_CELL_CLASS (klass);
 
 	object_class->dispose = ect_dispose;
 
@@ -843,12 +843,14 @@ e_cell_tree_class_init (GObjectClass *object_class)
 	ecc->show_tooltip     = ect_show_tooltip;
 	ecc->get_bg_color     = ect_get_bg_color;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
         gal_a11y_e_cell_registry_add_cell_type (NULL, E_CELL_TREE_TYPE, gal_a11y_e_cell_tree_new);
 }
 
-E_MAKE_TYPE(e_cell_tree, "ECellTree", ECellTree, e_cell_tree_class_init, NULL, PARENT_TYPE)
+static void
+e_cell_tree_init (ECellTree *ect)
+{
+	/* nothing to do */
+}
 
 /**
  * e_cell_tree_construct:
diff --git a/widgets/table/e-cell-vbox.c b/widgets/table/e-cell-vbox.c
index 4327722b64..f915c3e0dd 100644
--- a/widgets/table/e-cell-vbox.c
+++ b/widgets/table/e-cell-vbox.c
@@ -42,9 +42,7 @@
 #include "e-cell-vbox.h"
 #include "e-table-item.h"
 
-#define PARENT_TYPE e_cell_get_type ()
-
-static ECellClass *parent_class;
+G_DEFINE_TYPE (ECellVbox, e_cell_vbox, E_CELL_TYPE)
 
 #define INDENT_AMOUNT 16
 
@@ -114,8 +112,8 @@ ecv_realize (ECellView *ecell_view)
 	for (i = 0; i < vbox_view->subcell_view_count; i++)
 		e_cell_realize (vbox_view->subcell_views[i]);
 
-	if (parent_class->realize)
-		(* parent_class->realize) (ecell_view);
+	if (E_CELL_CLASS (e_cell_vbox_parent_class)->realize)
+		(* E_CELL_CLASS (e_cell_vbox_parent_class)->realize) (ecell_view);
 }
 
 /*
@@ -131,8 +129,8 @@ ecv_unrealize (ECellView *ecv)
 	for (i = 0; i < vbox_view->subcell_view_count; i++)
 		e_cell_unrealize (vbox_view->subcell_views[i]);
 
-	if (parent_class->unrealize)
-		(* parent_class->unrealize) (ecv);
+	if (E_CELL_CLASS (e_cell_vbox_parent_class)->unrealize)
+		(* E_CELL_CLASS (e_cell_vbox_parent_class)->unrealize) (ecv);
 }
 
 /*
@@ -411,7 +409,7 @@ ecv_dispose (GObject *object)
 	ecv->subcells = NULL;
 	ecv->subcell_count = 0;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_cell_vbox_parent_class)->dispose (object);
 }
 
 static void
@@ -421,13 +419,14 @@ ecv_finalize (GObject *object)
 
 	g_free (ecv->model_cols);
 
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_cell_vbox_parent_class)->finalize (object);
 }
 
 static void
-e_cell_vbox_class_init (GObjectClass *object_class)
+e_cell_vbox_class_init (ECellVboxClass *klass)
 {
-	ECellClass *ecc = (ECellClass *) object_class;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	ECellClass *ecc = E_CELL_CLASS (klass);
 
 	object_class->dispose = ecv_dispose;
 	object_class->finalize = ecv_finalize;
@@ -451,21 +450,16 @@ e_cell_vbox_class_init (GObjectClass *object_class)
 	ecc->get_bg_color     = ecv_get_bg_color;
 #endif
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	gal_a11y_e_cell_registry_add_cell_type (NULL, E_CELL_VBOX_TYPE, gal_a11y_e_cell_vbox_new);
 }
 
 static void
-e_cell_vbox_init (GtkObject *object)
+e_cell_vbox_init (ECellVbox *ecv)
 {
-	ECellVbox *ecv = E_CELL_VBOX (object);
-
 	ecv->subcells = NULL;
 	ecv->subcell_count = 0;
 }
 
-E_MAKE_TYPE(e_cell_vbox, "ECellVbox", ECellVbox, e_cell_vbox_class_init, e_cell_vbox_init, PARENT_TYPE)
 
 /**
  * e_cell_vbox_new:
diff --git a/widgets/table/e-cell.c b/widgets/table/e-cell.c
index 0679cffd53..6670b90a86 100644
--- a/widgets/table/e-cell.c
+++ b/widgets/table/e-cell.c
@@ -28,7 +28,7 @@
 
 #include "e-cell.h"
 
-#define PARENT_TYPE GTK_TYPE_OBJECT
+G_DEFINE_TYPE (ECell, e_cell, GTK_TYPE_OBJECT)
 
 #define ECVIEW_EC_CLASS(v) (E_CELL_GET_CLASS (v->ecell))
 
@@ -131,38 +131,34 @@ ec_show_tooltip (ECellView *ecell_view, int model_col, int view_col, int row, in
 }
 
 static void
-e_cell_class_init (GtkObjectClass *object_class)
-{
-	ECellClass *ecc = (ECellClass *) object_class;
-
-	ecc->realize = ec_realize;
-	ecc->unrealize = ec_unrealize;
-	ecc->new_view = ec_new_view;
-	ecc->kill_view = ec_kill_view;
-	ecc->draw = ec_draw;
-	ecc->event = ec_event;
-	ecc->focus = ec_focus;
-	ecc->unfocus = ec_unfocus;
-	ecc->height = ec_height;
-	ecc->enter_edit = ec_enter_edit;
-	ecc->leave_edit = ec_leave_edit;
-	ecc->save_state = ec_save_state;
-	ecc->load_state = ec_load_state;
-	ecc->free_state = ec_free_state;
-	ecc->print = NULL;
-	ecc->print_height = NULL;
-	ecc->max_width = NULL;
-	ecc->max_width_by_row = NULL;
-	ecc->show_tooltip = ec_show_tooltip;
+e_cell_class_init (ECellClass *klass)
+{
+	klass->realize = ec_realize;
+	klass->unrealize = ec_unrealize;
+	klass->new_view = ec_new_view;
+	klass->kill_view = ec_kill_view;
+	klass->draw = ec_draw;
+	klass->event = ec_event;
+	klass->focus = ec_focus;
+	klass->unfocus = ec_unfocus;
+	klass->height = ec_height;
+	klass->enter_edit = ec_enter_edit;
+	klass->leave_edit = ec_leave_edit;
+	klass->save_state = ec_save_state;
+	klass->load_state = ec_load_state;
+	klass->free_state = ec_free_state;
+	klass->print = NULL;
+	klass->print_height = NULL;
+	klass->max_width = NULL;
+	klass->max_width_by_row = NULL;
+	klass->show_tooltip = ec_show_tooltip;
 }
 
 static void
-e_cell_init (GtkObject *object)
+e_cell_init (ECell *cell)
 {
 }
 
-E_MAKE_TYPE(e_cell, "ECell", ECell, e_cell_class_init, e_cell_init, PARENT_TYPE)
-
 /**
  * e_cell_event:
  * @ecell_view: The ECellView where the event will be dispatched
diff --git a/widgets/table/e-table-click-to-add.c b/widgets/table/e-table-click-to-add.c
index b58d027978..4e87457851 100644
--- a/widgets/table/e-table-click-to-add.c
+++ b/widgets/table/e-table-click-to-add.c
@@ -51,12 +51,12 @@ enum {
 
 static guint etcta_signals [LAST_SIGNAL] = { 0 };
 
-#define PARENT_OBJECT_TYPE gnome_canvas_group_get_type ()
+/* workaround for avoiding APi breakage */
+#define etcta_get_type e_table_click_to_add_get_type
+G_DEFINE_TYPE (ETableClickToAdd, etcta, GNOME_TYPE_CANVAS_GROUP)
 
 #define ELEMENTS(x) (sizeof (x) / sizeof (x[0]))
 
-static GnomeCanvasGroupClass *etcta_parent_class;
-
 enum {
 	PROP_0,
 	PROP_HEADER,
@@ -477,8 +477,6 @@ etcta_class_init (ETableClickToAddClass *klass)
 	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS(klass);
 	GObjectClass *object_class = G_OBJECT_CLASS(klass);
 
-	etcta_parent_class = g_type_class_ref (PARENT_OBJECT_TYPE);
-
 	klass->cursor_change = NULL;
 	klass->style_set     = etcta_style_set;
 
@@ -547,9 +545,8 @@ etcta_class_init (ETableClickToAddClass *klass)
 }
 
 static void
-etcta_init (GnomeCanvasItem *item)
+etcta_init (ETableClickToAdd *etcta)
 {
-	ETableClickToAdd *etcta = E_TABLE_CLICK_TO_ADD (item);
 	AtkObject *a11y;
 
 	etcta->one = NULL;
@@ -566,7 +563,7 @@ etcta_init (GnomeCanvasItem *item)
 	g_signal_connect(etcta->selection, "cursor_changed",
 			 G_CALLBACK (etcta_cursor_change), etcta);
 
-	e_canvas_item_set_reflow_callback(item, etcta_reflow);
+	e_canvas_item_set_reflow_callback (GNOME_CANVAS_ITEM (etcta), etcta_reflow);
 
 	/* create its a11y object at this time if accessibility is enabled*/
 	if (atk_get_root () != NULL) {
@@ -575,9 +572,6 @@ etcta_init (GnomeCanvasItem *item)
 	}
 }
 
-E_MAKE_TYPE(e_table_click_to_add, "ETableClickToAdd", ETableClickToAdd, etcta_class_init, etcta_init, PARENT_OBJECT_TYPE)
-
-
 /* The colors in this need to be themefied. */
 /**
  * e_table_click_to_add_commit:
diff --git a/widgets/table/e-table-col.c b/widgets/table/e-table-col.c
index b61d5b44cf..5025ee73e7 100644
--- a/widgets/table/e-table-col.c
+++ b/widgets/table/e-table-col.c
@@ -28,7 +28,7 @@
 
 #include "e-table-col.h"
 
-static GObjectClass *parent_class;
+G_DEFINE_TYPE (ETableCol, e_table_col, G_TYPE_OBJECT)
 
 enum {
 	PROP_0,
@@ -52,7 +52,8 @@ etc_dispose (GObject *object)
 		g_free (etc->text);
 	etc->text = NULL;
 	
-	parent_class->dispose (object);
+	if (G_OBJECT_CLASS (e_table_col_parent_class)->dispose)
+		G_OBJECT_CLASS (e_table_col_parent_class)->dispose (object);
 }
 
 static void
@@ -85,9 +86,9 @@ etc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *psp
 }
  
 static void
-e_table_col_class_init (GObjectClass *object_class)
+e_table_col_class_init (ETableColClass *klass)
 {
-	parent_class = g_type_class_peek_parent (object_class);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);	
 
 	object_class->dispose = etc_dispose;
 	object_class->set_property = etc_set_property;
@@ -111,8 +112,6 @@ e_table_col_init (ETableCol *etc)
 	etc->priority = 0;
 }
 
-E_MAKE_TYPE(e_table_col, "ETableCol", ETableCol, e_table_col_class_init, e_table_col_init, G_TYPE_OBJECT)
-
 /** 
  * e_table_col_new:
  * @col_idx: the column we represent in the model
diff --git a/widgets/table/e-table-column-specification.c b/widgets/table/e-table-column-specification.c
index 9bfc4460b0..a7d4587022 100644
--- a/widgets/table/e-table-column-specification.c
+++ b/widgets/table/e-table-column-specification.c
@@ -33,7 +33,9 @@
 
 #include "e-table-column-specification.h"
 
-static GObjectClass *etcs_parent_class;
+/* workaround for avoiding API breakage */
+#define etcs_get_type e_table_column_specification_get_type
+G_DEFINE_TYPE (ETableColumnSpecification, etcs, G_TYPE_OBJECT)
 
 static void
 free_strings (ETableColumnSpecification *etcs)
@@ -57,15 +59,15 @@ etcs_finalize (GObject *object)
 
 	free_strings(etcs);
 
-	etcs_parent_class->finalize (object);
+	G_OBJECT_CLASS (etcs_parent_class)->finalize (object);
 }
 
 static void
-etcs_class_init (GObjectClass *klass)
+etcs_class_init (ETableColumnSpecificationClass *klass)
 {
-	etcs_parent_class = g_type_class_peek_parent (klass);
-	
-	klass->finalize = etcs_finalize;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->finalize = etcs_finalize;
 }
 
 static void
@@ -87,8 +89,6 @@ etcs_init (ETableColumnSpecification *specification)
 	specification->priority      = 0;
 }
 
-E_MAKE_TYPE(e_table_column_specification, "ETableColumnSpecification", ETableColumnSpecification, etcs_class_init, etcs_init, G_TYPE_OBJECT)
-
 ETableColumnSpecification *
 e_table_column_specification_new (void)
 {
diff --git a/widgets/table/e-table-column.c b/widgets/table/e-table-column.c
index ae1171fb3d..76585f2836 100644
--- a/widgets/table/e-table-column.c
+++ b/widgets/table/e-table-column.c
@@ -33,8 +33,7 @@ enum {
 
 static guint etc_signals [LAST_SIGNAL] = { 0, };
 
-#define PARENT_CLASS GTK_TYPE_OBJECT
-static GtkObjectClass *e_table_column_parent_class;
+G_DEFINE_TYPE (ETableColumn, e_table_column, GTK_TYPE_OBJECT)
 
 static void
 e_table_column_finalize (GObject *object)
@@ -83,13 +82,6 @@ e_table_column_class_init (GtkObjectClass *object_class)
 			      G_TYPE_NONE, 1, G_TYPE_INT);
 }
 
-E_MAKE_TYPE (e_table_column,
-	     "ETableColumn",
-	     ETableColumn,
-	     e_table_column_class_init,
-	     NULL,
-	     PARENT_TYPE);
-
 static void
 etc_do_insert (ETableColumn *etc, int pos, ETableCol *val)
 {
diff --git a/widgets/table/e-table-config-field.c b/widgets/table/e-table-config-field.c
index d49cf08b53..d3c7fe6bc6 100644
--- a/widgets/table/e-table-config-field.c
+++ b/widgets/table/e-table-config-field.c
@@ -32,9 +32,7 @@
 
 #include "e-table-config-field.h"
 
-#define PARENT_TYPE (gtk_vbox_get_type())
-
-static GtkVBoxClass *etcf_parent_class;
+G_DEFINE_TYPE (ETableConfigField, etcf, GTK_TYPE_VBOX)
 
 static void
 etcf_dispose (GObject *object)
@@ -53,11 +51,11 @@ etcf_dispose (GObject *object)
 }
 
 static void
-etcf_class_init (GObjectClass *klass)
+etcf_class_init (ETableConfigFieldClass *klass)
 {
-	etcf_parent_class = g_type_class_ref (PARENT_TYPE);
-	
-	klass->dispose = etcf_dispose;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->dispose = etcf_dispose;
 }
 
 static void
@@ -72,8 +70,6 @@ etcf_init (ETableConfigField *etcf)
 	etcf->child_fields     = NULL;
 }
 
-E_MAKE_TYPE(e_table_config_field, "ETableConfigField", ETableConfigField, etcf_class_init, etcf_init, PARENT_TYPE)
-
 ETableConfigField *
 e_table_config_field_new       (ETableSpecification *spec,
 				ETableSortInfo      *sort_info,
diff --git a/widgets/table/e-table-config.c b/widgets/table/e-table-config.c
index 289007ba21..8e5e36e6d9 100644
--- a/widgets/table/e-table-config.c
+++ b/widgets/table/e-table-config.c
@@ -45,7 +45,7 @@
 #include "e-table-scrolled.h"
 #include "e-table-without.h"
 
-static GObjectClass *config_parent_class;
+G_DEFINE_TYPE (ETableConfig, e_table_config, G_TYPE_OBJECT)
 
 enum {
 	CHANGED,
@@ -90,7 +90,7 @@ config_finalize (GObject *object)
 	g_free (config->domain);
 	config->domain = NULL;
 
-	config_parent_class->finalize (object);
+	G_OBJECT_CLASS (e_table_config_parent_class)->finalize (object);
 }
 
 static void
@@ -129,11 +129,9 @@ config_get_property (GObject *object,
 }
 
 static void
-config_class_init (GObjectClass *object_class)
+e_table_config_class_init (ETableConfigClass *klass)
 {
-	ETableConfigClass *klass = E_TABLE_CONFIG_CLASS(object_class);
-
-	config_parent_class   = g_type_class_peek_parent (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);	
 	
 	klass->changed        = NULL;
 
@@ -1257,7 +1255,7 @@ setup_gui (ETableConfig *config)
 }
 
 static void
-config_init (ETableConfig *config)
+e_table_config_init (ETableConfig *config)
 {
 	config->domain = NULL;
 }
@@ -1355,4 +1353,3 @@ e_table_config_raise (ETableConfig *config)
 	gdk_window_raise (GTK_WIDGET (config->dialog_toplevel)->window);
 }
 
-E_MAKE_TYPE(e_table_config, "ETableConfig", ETableConfig, config_class_init, config_init, G_TYPE_OBJECT)
diff --git a/widgets/table/e-table-extras.c b/widgets/table/e-table-extras.c
index 93013bbd78..5561eb9d36 100644
--- a/widgets/table/e-table-extras.c
+++ b/widgets/table/e-table-extras.c
@@ -39,7 +39,9 @@
 #include "e-cell-tree.h"
 #include "e-table-extras.h"
 
-static GObjectClass *ete_parent_class;
+/* workaround for avoiding API breakage */
+#define ete_get_type e_table_extras_get_type
+G_DEFINE_TYPE (ETableExtras, ete, G_TYPE_OBJECT)
 
 static void
 cell_hash_free(gchar	*key,
@@ -91,15 +93,15 @@ ete_finalize (GObject *object)
 	ete->searches = NULL;
 	ete->pixbufs = NULL;
 
-	ete_parent_class->finalize (object);
+	G_OBJECT_CLASS (ete_parent_class)->finalize (object);
 }
 
 static void
-ete_class_init (GObjectClass *klass)
+ete_class_init (ETableExtrasClass *klass)
 {
-	ete_parent_class = g_type_class_peek_parent (klass);
-	
-	klass->finalize = ete_finalize;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->finalize = ete_finalize;
 }
 
 static gint
@@ -184,8 +186,6 @@ ete_init (ETableExtras *extras)
 	e_table_extras_add_cell(extras, "tree-string", e_cell_tree_new (NULL, NULL, TRUE, e_cell_text_new (NULL, GTK_JUSTIFY_LEFT)));
 }
 
-E_MAKE_TYPE(e_table_extras, "ETableExtras", ETableExtras, ete_class_init, ete_init, G_TYPE_OBJECT)
-
 ETableExtras *
 e_table_extras_new (void)
 {
diff --git a/widgets/table/e-table-field-chooser-dialog.c b/widgets/table/e-table-field-chooser-dialog.c
index db02b7eb83..ee94e12b2b 100644
--- a/widgets/table/e-table-field-chooser-dialog.c
+++ b/widgets/table/e-table-field-chooser-dialog.c
@@ -37,9 +37,6 @@ static void e_table_field_chooser_dialog_get_property (GObject *object, guint pr
 static void e_table_field_chooser_dialog_dispose (GObject *object);
 static void e_table_field_chooser_dialog_response (GtkDialog *dialog, gint id);
 
-#define PARENT_TYPE GTK_TYPE_DIALOG
-static GtkDialogClass *parent_class = NULL;
-
 /* The arguments we take */
 enum {
 	PROP_0,
@@ -48,12 +45,7 @@ enum {
 	PROP_HEADER
 };
 
-E_MAKE_TYPE (e_table_field_chooser_dialog,
-	     "ETableFieldChooserDialog",
-	     ETableFieldChooserDialog,
-	     e_table_field_chooser_dialog_class_init,
-	     e_table_field_chooser_dialog_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ETableFieldChooserDialog, e_table_field_chooser_dialog, GTK_TYPE_DIALOG)
 
 static void
 e_table_field_chooser_dialog_class_init (ETableFieldChooserDialogClass *klass)
@@ -64,8 +56,6 @@ e_table_field_chooser_dialog_class_init (ETableFieldChooserDialogClass *klass)
 	object_class = (GObjectClass*) klass;
 	dialog_class = GTK_DIALOG_CLASS (klass);
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->dispose      = e_table_field_chooser_dialog_dispose;
 	object_class->set_property = e_table_field_chooser_dialog_set_property;
 	object_class->get_property = e_table_field_chooser_dialog_get_property;
@@ -150,7 +140,7 @@ e_table_field_chooser_dialog_dispose (GObject *object)
 		g_object_unref (etfcd->header);
 	etfcd->header = NULL;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_table_field_chooser_dialog_parent_class)->dispose (object);
 }
 
 static void
diff --git a/widgets/table/e-table-field-chooser-item.c b/widgets/table/e-table-field-chooser-item.c
index 75062051d9..15743655f9 100644
--- a/widgets/table/e-table-field-chooser-item.c
+++ b/widgets/table/e-table-field-chooser-item.c
@@ -54,12 +54,12 @@ enum {
 static guint etfci_signals [LAST_SIGNAL] = { 0, };
 #endif
 
-#define PARENT_OBJECT_TYPE gnome_canvas_item_get_type ()
+/* workaround for avoiding API breakage */
+#define etfci_get_type e_table_field_chooser_item_get_type
+G_DEFINE_TYPE (ETableFieldChooserItem, etfci, GNOME_TYPE_CANVAS_ITEM)
 
 #define ELEMENTS(x) (sizeof (x) / sizeof (x[0]))
 
-static GnomeCanvasItemClass *etfci_parent_class;
-
 static void etfci_drop_table_header (ETableFieldChooserItem *etfci);
 static void etfci_drop_full_header (ETableFieldChooserItem *etfci);
 
@@ -615,12 +615,11 @@ etfci_event (GnomeCanvasItem *item, GdkEvent *e)
 }
 
 static void
-etfci_class_init (GObjectClass *object_class)
+etfci_class_init (ETableFieldChooserItemClass *klass)
 {
-	GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
+	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
-	etfci_parent_class = g_type_class_ref (PARENT_OBJECT_TYPE);
-	
 	object_class->dispose = etfci_dispose;
 	object_class->set_property = etfci_set_property;
 	object_class->get_property = etfci_get_property;
@@ -669,10 +668,8 @@ etfci_class_init (GObjectClass *object_class)
 }
 
 static void
-etfci_init (GnomeCanvasItem *item)
+etfci_init (ETableFieldChooserItem *etfci)
 {
-	ETableFieldChooserItem *etfci = E_TABLE_FIELD_CHOOSER_ITEM (item);
-
 	etfci->full_header = NULL;
 	etfci->header = NULL;
 	etfci->combined_header = NULL;
@@ -691,12 +688,6 @@ etfci_init (GnomeCanvasItem *item)
 	etfci->maybe_drag = 0;
 	etfci->drag_end_id = 0;
 
-	e_canvas_item_set_reflow_callback(item, etfci_reflow);
+	e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM (etfci), etfci_reflow);
 }
 
-E_MAKE_TYPE (e_table_field_chooser_item,
-	     "ETableFieldChooserItem",
-	     ETableFieldChooserItem,
-	     etfci_class_init,
-	     etfci_init,
-	     PARENT_OBJECT_TYPE)
diff --git a/widgets/table/e-table-field-chooser.c b/widgets/table/e-table-field-chooser.c
index 294d90e212..bb3388431b 100644
--- a/widgets/table/e-table-field-chooser.c
+++ b/widgets/table/e-table-field-chooser.c
@@ -39,9 +39,6 @@ static void e_table_field_chooser_set_property (GObject *object, guint prop_id,
 static void e_table_field_chooser_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
 static void e_table_field_chooser_dispose (GObject *object);
 
-#define PARENT_TYPE GTK_TYPE_VBOX
-static GtkVBoxClass *parent_class = NULL;
-
 /* The arguments we take */
 enum {
 	PROP_0,
@@ -50,12 +47,7 @@ enum {
 	PROP_DND_CODE
 };
 
-E_MAKE_TYPE (e_table_field_chooser,
-	     "ETableFieldChooser",
-	     ETableFieldChooser,
-	     e_table_field_chooser_class_init,
-	     e_table_field_chooser_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ETableFieldChooser, e_table_field_chooser, GTK_TYPE_VBOX)
 
 static void
 e_table_field_chooser_class_init (ETableFieldChooserClass *klass)
@@ -66,8 +58,6 @@ e_table_field_chooser_class_init (ETableFieldChooserClass *klass)
 
 	glade_init();
 
-	parent_class = g_type_class_ref (GTK_TYPE_VBOX);
-
 	object_class->set_property = e_table_field_chooser_set_property;
 	object_class->get_property = e_table_field_chooser_get_property;
 	object_class->dispose      = e_table_field_chooser_dispose;
@@ -225,8 +215,8 @@ e_table_field_chooser_dispose (GObject *object)
 		g_object_unref (etfc->gui);
 	etfc->gui = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_table_field_chooser_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_table_field_chooser_parent_class)->dispose) (object);
 }
 
 GtkWidget*
diff --git a/widgets/table/e-table-group-container.c b/widgets/table/e-table-group-container.c
index 4c900624a2..277e4f2b89 100644
--- a/widgets/table/e-table-group-container.c
+++ b/widgets/table/e-table-group-container.c
@@ -42,9 +42,9 @@
 
 #define TITLE_HEIGHT         16
 
-#define PARENT_TYPE e_table_group_get_type ()
-
-static GnomeCanvasGroupClass *etgc_parent_class;
+/* workaround for avoiding API breakage */
+#define etgc_get_type e_table_group_container_get_type
+G_DEFINE_TYPE (ETableGroupContainer, etgc, E_TABLE_GROUP_TYPE)
 
 /* The arguments we take */
 enum {
@@ -864,10 +864,11 @@ etgc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *ps
 }
 
 static void
-etgc_class_init (GObjectClass *object_class)
+etgc_class_init (ETableGroupContainerClass *klass)
 {
-	GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
-	ETableGroupClass *e_group_class = E_TABLE_GROUP_CLASS(object_class);
+	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	ETableGroupClass *e_group_class = E_TABLE_GROUP_CLASS (klass);
 
 	object_class->dispose = etgc_dispose;
 	object_class->set_property = etgc_set_property;
@@ -877,8 +878,6 @@ etgc_class_init (GObjectClass *object_class)
 	item_class->realize = etgc_realize;
 	item_class->unrealize = etgc_unrealize;
 
-	etgc_parent_class = g_type_class_ref (PARENT_TYPE);
-
 	e_group_class->add = etgc_add;
 	e_group_class->add_array = etgc_add_array;
 	e_group_class->add_all = etgc_add_all;
@@ -1069,12 +1068,11 @@ etgc_reflow (GnomeCanvasItem *item, gint flags)
 }
 
 static void
-etgc_init (GtkObject *object)
+etgc_init (ETableGroupContainer *container)
 {
-	ETableGroupContainer *container = E_TABLE_GROUP_CONTAINER(object);
 	container->children = FALSE;
 
-	e_canvas_item_set_reflow_callback (GNOME_CANVAS_ITEM(object), etgc_reflow);
+	e_canvas_item_set_reflow_callback (GNOME_CANVAS_ITEM(container), etgc_reflow);
 
 	container->alternating_row_colors = 1;
 	container->horizontal_draw_grid = 1;
@@ -1086,8 +1084,6 @@ etgc_init (GtkObject *object)
 	container->uniform_row_height = FALSE;
 }
 
-E_MAKE_TYPE (e_table_group_container, "ETableGroupContainer", ETableGroupContainer, etgc_class_init, etgc_init, PARENT_TYPE)
-
 void
 e_table_group_apply_to_leafs (ETableGroup *etg, ETableGroupLeafFn fn, void *closure)
 {
diff --git a/widgets/table/e-table-group-leaf.c b/widgets/table/e-table-group-leaf.c
index 9acf976021..9b044946f6 100644
--- a/widgets/table/e-table-group-leaf.c
+++ b/widgets/table/e-table-group-leaf.c
@@ -35,9 +35,9 @@
 #include "e-table-sorted.h"
 #include "e-table-sorted-variable.h"
 
-#define PARENT_TYPE e_table_group_get_type ()
-
-static GnomeCanvasGroupClass *etgl_parent_class;
+/* workaround for avoiding APi breakage */
+#define etgl_get_type e_table_group_leaf_get_type
+G_DEFINE_TYPE (ETableGroupLeaf, etgl, E_TABLE_GROUP_TYPE)
 
 /* The arguments we take */
 enum {
@@ -542,10 +542,11 @@ etgl_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *ps
 }
 
 static void
-etgl_class_init (GObjectClass *object_class)
+etgl_class_init (ETableGroupLeafClass *klass)
 {
-	GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
-	ETableGroupClass *e_group_class = E_TABLE_GROUP_CLASS(object_class);
+	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (klass);
+	ETableGroupClass *e_group_class = E_TABLE_GROUP_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->dispose = etgl_dispose;
 	object_class->set_property = etgl_set_property;
@@ -553,8 +554,6 @@ etgl_class_init (GObjectClass *object_class)
 
 	item_class->realize = etgl_realize;
 
-	etgl_parent_class = g_type_class_ref (PARENT_TYPE);
-
 	e_group_class->add = etgl_add;
 	e_group_class->add_array = etgl_add_array;
 	e_group_class->add_all = etgl_add_all;
@@ -654,10 +653,8 @@ etgl_class_init (GObjectClass *object_class)
 }
 
 static void
-etgl_init (GtkObject *object)
+etgl_init (ETableGroupLeaf *etgl)
 {
-	ETableGroupLeaf *etgl = E_TABLE_GROUP_LEAF (object);
-
 	etgl->width = 1;
 	etgl->height = 1;
 	etgl->minimum_width = 0;
@@ -683,7 +680,6 @@ etgl_init (GtkObject *object)
 	etgl->selection_model = NULL;
 	etgl->uniform_row_height = FALSE;
 
-	e_canvas_item_set_reflow_callback (GNOME_CANVAS_ITEM(object), etgl_reflow);
+	e_canvas_item_set_reflow_callback (GNOME_CANVAS_ITEM (etgl), etgl_reflow);
 }
 
-E_MAKE_TYPE (e_table_group_leaf, "ETableGroupLeaf", ETableGroupLeaf, etgl_class_init, etgl_init, PARENT_TYPE)
diff --git a/widgets/table/e-table-group.c b/widgets/table/e-table-group.c
index a7bb72db3e..a9cdcae468 100644
--- a/widgets/table/e-table-group.c
+++ b/widgets/table/e-table-group.c
@@ -33,12 +33,12 @@
 #include "e-table-group-leaf.h"
 #include "e-table-item.h"
 
-#define PARENT_TYPE gnome_canvas_group_get_type ()
+/* workaround for avoiding API breakage*/
+#define etg_get_type e_table_group_get_type
+G_DEFINE_TYPE (ETableGroup, etg, GNOME_TYPE_CANVAS_GROUP)
 
 #define ETG_CLASS(e) (E_TABLE_GROUP_CLASS(GTK_OBJECT_GET_CLASS(e)))
 
-static GnomeCanvasGroupClass *etg_parent_class;
-
 enum {
 	CURSOR_CHANGE,
 	CURSOR_ACTIVATED,
@@ -611,10 +611,10 @@ etg_get_focus (ETableGroup      *etg)
 }
 
 static void
-etg_class_init (GObjectClass *object_class)
+etg_class_init (ETableGroupClass *klass)
 {
-	GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
-	ETableGroupClass *klass = (ETableGroupClass *) object_class;
+	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->dispose = etg_dispose;
 
@@ -641,8 +641,6 @@ etg_class_init (GObjectClass *object_class)
 	klass->compute_location = NULL;
 	klass->get_cell_geometry = NULL;
 
-	etg_parent_class = g_type_class_ref (PARENT_TYPE);
-
 	etg_signals [CURSOR_CHANGE] =
 		g_signal_new ("cursor_change",
 			      G_OBJECT_CLASS_TYPE (object_class),
@@ -711,4 +709,8 @@ etg_class_init (GObjectClass *object_class)
 			      G_TYPE_INT, GDK_TYPE_EVENT);
 }
 
-E_MAKE_TYPE (e_table_group, "ETableGroup", ETableGroup, etg_class_init, NULL, PARENT_TYPE)
+static void
+etg_init (ETableGroup *etg)
+{
+	/* nothing to do */
+}
diff --git a/widgets/table/e-table-header-item.c b/widgets/table/e-table-header-item.c
index 5e45bb2e66..d6096e08c7 100644
--- a/widgets/table/e-table-header-item.c
+++ b/widgets/table/e-table-header-item.c
@@ -74,13 +74,12 @@ static guint ethi_signals [LAST_SIGNAL] = { 0, };
 
 #define ETHI_RESIZING(x) ((x)->resize_col != -1)
 
-#define PARENT_OBJECT_TYPE gnome_canvas_item_get_type ()
+#define ethi_get_type e_table_header_item_get_type
+G_DEFINE_TYPE (ETableHeaderItem, ethi, GNOME_TYPE_CANVAS_ITEM)
 
 #define ELEMENTS(x) (sizeof (x) / sizeof (x[0]))
 #define d(x)
 
-static GnomeCanvasItemClass *ethi_parent_class;
-
 static void ethi_drop_table_header (ETableHeaderItem *ethi);
 
 /*
@@ -1855,12 +1854,11 @@ ethi_event (GnomeCanvasItem *item, GdkEvent *e)
 }
 
 static void
-ethi_class_init (GObjectClass *object_class)
+ethi_class_init (ETableHeaderItemClass *klass)
 {
-	GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
+	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
-	ethi_parent_class = g_type_class_ref (PARENT_OBJECT_TYPE);
-	
 	object_class->dispose = ethi_dispose;
 	object_class->set_property = ethi_set_property;
 	object_class->get_property = ethi_get_property;
@@ -1944,9 +1942,9 @@ ethi_class_init (GObjectClass *object_class)
 }
 
 static void
-ethi_init (GnomeCanvasItem *item)
+ethi_init (ETableHeaderItem *ethi)
 {
-	ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item);
+	GnomeCanvasItem *item = GNOME_CANVAS_ITEM (ethi);
 
 	ethi->resize_col = -1;
 
@@ -1970,9 +1968,3 @@ ethi_init (GnomeCanvasItem *item)
 	ethi->selected_col = 0;
 }
 
-E_MAKE_TYPE (e_table_header_item,
-	     "ETableHeaderItem",
-	     ETableHeaderItem,
-	     ethi_class_init,
-	     ethi_init,
-	     PARENT_OBJECT_TYPE)
diff --git a/widgets/table/e-table-header.c b/widgets/table/e-table-header.c
index 5e7d28300b..ae76c7002a 100644
--- a/widgets/table/e-table-header.c
+++ b/widgets/table/e-table-header.c
@@ -55,7 +55,7 @@ static void eth_calc_widths (ETableHeader *eth);
 
 static guint eth_signals [LAST_SIGNAL] = { 0, };
 
-static GObjectClass *e_table_header_parent_class;
+G_DEFINE_TYPE (ETableHeader, e_table_header, G_TYPE_OBJECT)
 
 struct two_ints {
 	int column;
@@ -181,8 +181,8 @@ eth_finalize (GObject *object)
 	eth->col_count = 0;
 	eth->columns = NULL;
 
-	if (e_table_header_parent_class->finalize)
-		e_table_header_parent_class->finalize (object);
+	if (G_OBJECT_CLASS (e_table_header_parent_class)->finalize)
+		G_OBJECT_CLASS (e_table_header_parent_class)->finalize (object);
 }
 
 static void
@@ -247,9 +247,9 @@ eth_get_property (GObject *object, guint prop_id, GValue *val, GParamSpec *pspec
 }
 
 static void
-e_table_header_class_init (GObjectClass *object_class)
+e_table_header_class_init (ETableHeaderClass *klass)
 {
-	ETableHeaderClass *klass = E_TABLE_HEADER_CLASS (object_class);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->finalize = eth_finalize;
 	object_class->set_property = eth_set_property;
@@ -906,8 +906,6 @@ e_table_header_update_horizontal (ETableHeader *eth)
 	g_signal_emit (G_OBJECT (eth), eth_signals [EXPANSION_CHANGE], 0);
 }
 
-E_MAKE_TYPE(e_table_header, "ETableHeader", ETableHeader, e_table_header_class_init, e_table_header_init, G_TYPE_OBJECT)
-
 int
 e_table_header_prioritized_column (ETableHeader *eth)
 {
diff --git a/widgets/table/e-table-item.c b/widgets/table/e-table-item.c
index 026d9d11a3..457f1ad778 100644
--- a/widgets/table/e-table-item.c
+++ b/widgets/table/e-table-item.c
@@ -48,7 +48,9 @@
 #include "e-table-item.h"
 #include "e-table-subset.h"
 
-#define PARENT_OBJECT_TYPE gnome_canvas_item_get_type ()
+/* workaround for avoiding API breakage */
+#define eti_get_type e_table_item_get_type
+G_DEFINE_TYPE (ETableItem, eti, GNOME_TYPE_CANVAS_ITEM)
 
 #define FOCUSED_BORDER 2
 
@@ -67,8 +69,6 @@ static void eti_cancel_drag_due_to_model_change (ETableItem *eti);
    realize and make sure that all of them are doable by all the cells
    and that all of the others are only done after realization. */
 
-static GnomeCanvasItemClass *eti_parent_class;
-
 enum {
 	CURSOR_CHANGE,
 	CURSOR_ACTIVATED,
@@ -1577,10 +1577,8 @@ eti_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *psp
 }
 
 static void
-eti_init (GnomeCanvasItem *item)
+eti_init (ETableItem *eti)
 {
-	ETableItem *eti = E_TABLE_ITEM (item);
-
 	eti->motion_row 	       = -1;
 	eti->motion_col 	       = -1;
 	eti->editing_col               = -1;
@@ -2922,13 +2920,11 @@ eti_style_set (ETableItem *eti, GtkStyle *previous_style)
 }
 
 static void
-eti_class_init (GObjectClass *object_class)
+eti_class_init (ETableItemClass *klass)
 {
-	GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
-	ETableItemClass *eti_class  = (ETableItemClass *) object_class;
-	
-	eti_parent_class            = g_type_class_ref (PARENT_OBJECT_TYPE);
-	
+	GnomeCanvasItemClass *item_class = GNOME_CANVAS_ITEM_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
 	object_class->dispose       = eti_dispose;
 	object_class->set_property  = eti_set_property;
 	object_class->get_property  = eti_get_property;
@@ -2940,16 +2936,16 @@ eti_class_init (GObjectClass *object_class)
 	item_class->point           = eti_point;
 	item_class->event           = eti_event;
 	
-	eti_class->cursor_change    = NULL;
-	eti_class->cursor_activated = NULL;
-	eti_class->double_click     = NULL;
-	eti_class->right_click      = NULL;
-	eti_class->click            = NULL;
-	eti_class->key_press        = NULL;
-	eti_class->start_drag       = NULL;
-	eti_class->style_set        = eti_style_set;
-	eti_class->selection_model_removed = NULL;
-	eti_class->selection_model_added = NULL;
+	klass->cursor_change    = NULL;
+	klass->cursor_activated = NULL;
+	klass->double_click     = NULL;
+	klass->right_click      = NULL;
+	klass->click            = NULL;
+	klass->key_press        = NULL;
+	klass->start_drag       = NULL;
+	klass->style_set        = eti_style_set;
+	klass->selection_model_removed = NULL;
+	klass->selection_model_added = NULL;
 
 	g_object_class_install_property (object_class, PROP_TABLE_HEADER,
 					 g_param_spec_object ("ETableHeader",
@@ -3149,13 +3145,6 @@ eti_class_init (GObjectClass *object_class)
 	gal_a11y_e_table_item_init ();
 }
 
-E_MAKE_TYPE (e_table_item,
-	     "ETableItem",
-	     ETableItem,
-	     eti_class_init,
-	     eti_init,
-	     PARENT_OBJECT_TYPE)
-
 /** 
  * e_table_item_set_cursor:
  * @eti: %ETableItem which will have the cursor set.
diff --git a/widgets/table/e-table-memory-callbacks.c b/widgets/table/e-table-memory-callbacks.c
index fe25b3742b..806bab3c8a 100644
--- a/widgets/table/e-table-memory-callbacks.c
+++ b/widgets/table/e-table-memory-callbacks.c
@@ -27,6 +27,8 @@
 
 #include "e-table-memory-callbacks.h"
 
+G_DEFINE_TYPE (ETableMemoryCalbacks, e_table_memory_callbacks, E_TABLE_MEMORY_TYPE)
+
 static int
 etmc_column_count (ETableModel *etm)
 {
@@ -133,9 +135,9 @@ etmc_append_row (ETableModel *etm, ETableModel *source, int row)
 }
 
 static void
-e_table_memory_callbacks_class_init (GObjectClass *object_class)
+e_table_memory_callbacks_class_init (ETableMemoryCalbacksClass *klass)
 {
-	ETableModelClass *model_class = (ETableModelClass *) object_class;
+	ETableModelClass *model_class = E_TABLE_MODEL_CLASS (klass);
 
 	model_class->column_count     = etmc_column_count;
 	model_class->value_at         = etmc_value_at;
@@ -150,8 +152,11 @@ e_table_memory_callbacks_class_init (GObjectClass *object_class)
 
 }
 
-E_MAKE_TYPE(e_table_memory_callbacks, "ETableMemoryCalbacks", ETableMemoryCalbacks, e_table_memory_callbacks_class_init, NULL, E_TABLE_MEMORY_TYPE)
-
+static void
+e_table_memory_callbacks_init (ETableMemoryCalbacks *etmc)
+{
+	/* nothing to do */
+}
 
 /**
  * e_table_memory_callbacks_new:
diff --git a/widgets/table/e-table-memory-store.c b/widgets/table/e-table-memory-store.c
index c51d637681..27c2617d94 100644
--- a/widgets/table/e-table-memory-store.c
+++ b/widgets/table/e-table-memory-store.c
@@ -31,14 +31,14 @@
 
 #define STORE_LOCATOR(etms, col, row) (*((etms)->priv->store + (row) * (etms)->priv->col_count + (col)))
 
-static ETableMemoryClass *parent_class;
-
 struct _ETableMemoryStorePrivate {
 	int col_count;
 	ETableMemoryStoreColumnInfo *columns;
 	void **store;
 };
 
+G_DEFINE_TYPE (ETableMemoryStore, e_table_memory_store, E_TABLE_MEMORY_TYPE)
+
 static void *
 duplicate_value (ETableMemoryStore *etms, int col, const void *val)
 {
@@ -236,8 +236,8 @@ etms_finalize (GObject *obj)
 		g_free (etms->priv);
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->finalize)
-		G_OBJECT_CLASS (parent_class)->finalize (obj);
+	if (G_OBJECT_CLASS (e_table_memory_store_parent_class)->finalize)
+		G_OBJECT_CLASS (e_table_memory_store_parent_class)->finalize (obj);
 }
 	
 static void
@@ -251,11 +251,10 @@ e_table_memory_store_init (ETableMemoryStore *etms)
 }
 
 static void
-e_table_memory_store_class_init (GObjectClass *object_class)
+e_table_memory_store_class_init (ETableMemoryStoreClass *klass)
 {
-	ETableModelClass *model_class = (ETableModelClass *) object_class;
-
-	parent_class = g_type_class_peek_parent (object_class);
+	ETableModelClass *model_class = E_TABLE_MODEL_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->finalize	      = etms_finalize;
 
@@ -271,8 +270,6 @@ e_table_memory_store_class_init (GObjectClass *object_class)
 	model_class->append_row       = etms_append_row;
 }
 
-E_MAKE_TYPE(e_table_memory_store, "ETableMemoryStore", ETableMemoryStore, e_table_memory_store_class_init, e_table_memory_store_init, E_TABLE_MEMORY_TYPE)
-
 /**
  * e_table_memory_store_new:
  * @col_count:
diff --git a/widgets/table/e-table-memory.c b/widgets/table/e-table-memory.c
index cb0223c788..90e9d1fb47 100644
--- a/widgets/table/e-table-memory.c
+++ b/widgets/table/e-table-memory.c
@@ -38,7 +38,7 @@
 
 #include "e-table-memory.h"
 
-static ETableModel *parent_class;
+G_DEFINE_TYPE (ETableMemory, e_table_memory, E_TABLE_MODEL_TYPE)
 
 struct ETableMemoryPriv {
 	gpointer *data;
@@ -62,7 +62,7 @@ etmm_finalize (GObject *object)
 	}
 	etmm->priv = NULL;
 
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_table_memory_parent_class)->finalize (object);
 }
 
 static int
@@ -75,22 +75,19 @@ etmm_row_count (ETableModel *etm)
 
 
 static void
-e_table_memory_class_init (GObjectClass *klass)
+e_table_memory_class_init (ETableMemoryClass *klass)
 {
-	ETableModelClass *table_class = (ETableModelClass *) klass;
+	ETableModelClass *table_class = E_TABLE_MODEL_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
-	parent_class               = g_type_class_peek_parent (klass);
-	
-	klass->finalize            = etmm_finalize;
+	object_class->finalize     = etmm_finalize;
 
 	table_class->row_count     = etmm_row_count;
 }
 
 static void
-e_table_memory_init (GObject *object)
+e_table_memory_init (ETableMemory *etmm)
 {
-	ETableMemory *etmm = (ETableMemory *)object;
-
 	ETableMemoryPriv *priv;
 
 	priv = g_new0 (ETableMemoryPriv, 1);
@@ -101,10 +98,6 @@ e_table_memory_init (GObject *object)
 	priv->frozen = 0;
 }
 
-E_MAKE_TYPE(e_table_memory, "ETableMemory", ETableMemory, e_table_memory_class_init, e_table_memory_init, E_TABLE_MODEL_TYPE)
-
-
-
 /**
  * e_table_memory_new
  *
diff --git a/widgets/table/e-table-model.c b/widgets/table/e-table-model.c
index cef8846049..3fb38f51ed 100644
--- a/widgets/table/e-table-model.c
+++ b/widgets/table/e-table-model.c
@@ -38,7 +38,7 @@
 d(static gint depth = 0;)
 
 
-static GObjectClass *e_table_model_parent_class;
+G_DEFINE_TYPE (ETableModel, e_table_model, G_TYPE_OBJECT)
 
 enum {
 	MODEL_NO_CHANGE,
@@ -270,15 +270,14 @@ e_table_model_value_to_string (ETableModel *e_table_model, int col, const void *
 static void
 e_table_model_finalize (GObject *object)
 {
-	if (e_table_model_parent_class->finalize)
-		(*e_table_model_parent_class->finalize)(object);
+	if (G_OBJECT_CLASS (e_table_model_parent_class)->finalize)
+		(* G_OBJECT_CLASS (e_table_model_parent_class)->finalize)(object);
 }
 
 static void
-e_table_model_class_init (GObjectClass *object_class)
+e_table_model_class_init (ETableModelClass *klass)
 {
-	ETableModelClass *klass = E_TABLE_MODEL_CLASS(object_class);
-	e_table_model_parent_class = g_type_class_peek_parent (object_class);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);	
 	
 	object_class->finalize = e_table_model_finalize;
 
@@ -373,7 +372,11 @@ e_table_model_class_init (GObjectClass *object_class)
 	klass->model_rows_deleted  = NULL;
 }
 
-E_MAKE_TYPE(e_table_model, "ETableModel", ETableModel, e_table_model_class_init, NULL, G_TYPE_OBJECT)
+static void
+e_table_model_init (ETableModel *e_table_model)
+{
+	/* nothing to do */
+}
 
 #if d(!)0
 static void
diff --git a/widgets/table/e-table-one.c b/widgets/table/e-table-one.c
index 7bcbc37853..436f999c01 100644
--- a/widgets/table/e-table-one.c
+++ b/widgets/table/e-table-one.c
@@ -27,7 +27,7 @@
 
 #include "e-table-one.h"
 
-static ETableModelClass *parent_class = NULL;
+G_DEFINE_TYPE (ETableOne, e_table_one, E_TABLE_MODEL_TYPE)
 
 static int
 one_column_count (ETableModel *etm)
@@ -136,7 +136,7 @@ one_value_to_string (ETableModel *etm, int col, const void *value)
 static void
 one_finalize (GObject *object)
 {
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_table_one_parent_class)->finalize (object);
 }
 
 static void
@@ -164,15 +164,14 @@ one_dispose (GObject *object)
 		g_object_unref(one->source);
 	one->source = NULL;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_table_one_parent_class)->dispose (object);
 }
 
 static void
-e_table_one_class_init (GObjectClass *object_class)
+e_table_one_class_init (ETableOneClass *klass)
 {
-	ETableModelClass *model_class = (ETableModelClass *) object_class;
-
-	parent_class = g_type_class_peek_parent (object_class);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	ETableModelClass *model_class = E_TABLE_MODEL_CLASS (klass);
 
 	model_class->column_count = one_column_count;
 	model_class->row_count = one_row_count;
@@ -190,17 +189,12 @@ e_table_one_class_init (GObjectClass *object_class)
 }
 
 static void
-e_table_one_init (GObject *object)
+e_table_one_init (ETableOne *one)
 {
-	ETableOne *one = E_TABLE_ONE(object);
-
 	one->source = NULL;
 	one->data = NULL;
 }
 
-E_MAKE_TYPE(e_table_one, "ETableOne", ETableOne, e_table_one_class_init, e_table_one_init, E_TABLE_MODEL_TYPE)
-
-
 ETableModel *
 e_table_one_new (ETableModel *source)
 {
diff --git a/widgets/table/e-table-scrolled.c b/widgets/table/e-table-scrolled.c
index 3d581cd8c2..88f6f9012b 100644
--- a/widgets/table/e-table-scrolled.c
+++ b/widgets/table/e-table-scrolled.c
@@ -39,9 +39,7 @@
 
 #define COLUMN_HEADER_HEIGHT 16
 
-#define PARENT_TYPE gtk_scrolled_window_get_type ()
-
-static GtkObjectClass *parent_class;
+G_DEFINE_TYPE (ETableScrolled, e_table_scrolled, GTK_TYPE_SCROLLED_WINDOW)
 
 enum {
 	PROP_0,
@@ -49,13 +47,11 @@ enum {
 };
 
 static void
-e_table_scrolled_init (GtkObject *object)
+e_table_scrolled_init (ETableScrolled *ets)
 {
-	ETableScrolled *ets;
 	GtkScrolledWindow *scrolled_window;
 
-	ets = E_TABLE_SCROLLED (object);
-	scrolled_window = GTK_SCROLLED_WINDOW (object);
+	scrolled_window = GTK_SCROLLED_WINDOW (ets);
 
 	GTK_WIDGET_SET_FLAGS (ets, GTK_CAN_FOCUS);
 
@@ -209,8 +205,6 @@ e_table_scrolled_class_init (ETableScrolledClass *class)
 	object_class = (GObjectClass *) class;
 	widget_class = (GtkWidgetClass *) class;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->get_property = ets_get_property;
 
 	widget_class->grab_focus = ets_grab_focus;
@@ -225,5 +219,3 @@ e_table_scrolled_class_init (ETableScrolledClass *class)
 							      G_PARAM_READABLE));
 }
 
-E_MAKE_TYPE(e_table_scrolled, "ETableScrolled", ETableScrolled, e_table_scrolled_class_init, e_table_scrolled_init, PARENT_TYPE)
-
diff --git a/widgets/table/e-table-search.c b/widgets/table/e-table-search.c
index 0f014c1a76..100ad97a66 100644
--- a/widgets/table/e-table-search.c
+++ b/widgets/table/e-table-search.c
@@ -40,7 +40,7 @@ struct _ETableSearchPrivate {
 	gunichar last_character;
 };
 
-static GObjectClass *e_table_search_parent_class;
+G_DEFINE_TYPE (ETableSearch, e_table_search, G_TYPE_OBJECT)
 
 enum {
 	SEARCH_SEARCH,
@@ -113,15 +113,14 @@ e_table_search_finalize (GObject *object)
 	g_free (ets->priv->search_string);
 	g_free (ets->priv);
 	
-	if (e_table_search_parent_class->finalize)
-		(*e_table_search_parent_class->finalize)(object);
+	if (G_OBJECT_CLASS (e_table_search_parent_class)->finalize)
+		(*G_OBJECT_CLASS (e_table_search_parent_class)->finalize)(object);
 }
 
 static void
-e_table_search_class_init (GObjectClass *object_class)
+e_table_search_class_init (ETableSearchClass *klass)
 {
-	ETableSearchClass *klass = E_TABLE_SEARCH_CLASS(object_class);
-	e_table_search_parent_class = g_type_class_peek_parent (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->finalize = e_table_search_finalize;
 
@@ -157,9 +156,6 @@ e_table_search_init (ETableSearch *ets)
 	ets->priv->last_character = 0;
 }
 
-
-E_MAKE_TYPE(e_table_search, "ETableSearch", ETableSearch, e_table_search_class_init, e_table_search_init, G_TYPE_OBJECT)
-
 ETableSearch *
 e_table_search_new (void)
 {
diff --git a/widgets/table/e-table-selection-model.c b/widgets/table/e-table-selection-model.c
index a16285c392..8f31ff5897 100644
--- a/widgets/table/e-table-selection-model.c
+++ b/widgets/table/e-table-selection-model.c
@@ -32,9 +32,7 @@
 
 #include "e-table-selection-model.h"
 
-#define PARENT_TYPE e_selection_model_array_get_type ()
-
-static ESelectionModelArray *parent_class;
+G_DEFINE_TYPE (ETableSelectionModel, e_table_selection_model, E_SELECTION_MODEL_ARRAY_TYPE)
 
 static gint etsm_get_row_count (ESelectionModelArray *esm);
 
@@ -244,8 +242,8 @@ etsm_dispose (GObject *object)
 	drop_model(etsm);
 	free_hash(etsm);
 
-	if (G_OBJECT_CLASS(parent_class)->dispose)
-		G_OBJECT_CLASS(parent_class)->dispose (object);
+	if (G_OBJECT_CLASS(e_table_selection_model_parent_class)->dispose)
+		G_OBJECT_CLASS(e_table_selection_model_parent_class)->dispose (object);
 }
 
 static void
@@ -295,8 +293,6 @@ e_table_selection_model_class_init (ETableSelectionModelClass *klass)
 	GObjectClass *object_class;
 	ESelectionModelArrayClass *esma_class;
 
-	parent_class             = g_type_class_ref (PARENT_TYPE);
-
 	object_class             = G_OBJECT_CLASS(klass);
 	esma_class               = E_SELECTION_MODEL_ARRAY_CLASS(klass);
 
@@ -321,9 +317,6 @@ e_table_selection_model_class_init (ETableSelectionModelClass *klass)
 							      G_PARAM_READWRITE));
 }
 
-E_MAKE_TYPE(e_table_selection_model, "ETableSelectionModel", ETableSelectionModel,
-	    e_table_selection_model_class_init, e_table_selection_model_init, PARENT_TYPE)
-
 /** 
  * e_table_selection_model_new
  *
diff --git a/widgets/table/e-table-simple.c b/widgets/table/e-table-simple.c
index cdca4bbb44..574c002a85 100644
--- a/widgets/table/e-table-simple.c
+++ b/widgets/table/e-table-simple.c
@@ -28,6 +28,8 @@
 
 #include "e-table-simple.h"
 
+G_DEFINE_TYPE (ETableSimple, e_table_simple, E_TABLE_MODEL_TYPE)
+
 static int
 simple_column_count (ETableModel *etm)
 {
@@ -167,9 +169,9 @@ simple_value_to_string (ETableModel *etm, int col, const void *value)
 }
 
 static void
-e_table_simple_class_init (GObjectClass *object_class)
+e_table_simple_class_init (ETableSimpleClass *klass)
 {
-	ETableModelClass *model_class = (ETableModelClass *) object_class;
+	ETableModelClass *model_class = E_TABLE_MODEL_CLASS (klass);
 
 	model_class->column_count      = simple_column_count;
 	model_class->row_count         = simple_row_count;
@@ -189,7 +191,11 @@ e_table_simple_class_init (GObjectClass *object_class)
 	model_class->value_to_string   = simple_value_to_string;
 }
 
-E_MAKE_TYPE(e_table_simple, "ETableSimple", ETableSimple, e_table_simple_class_init, NULL, E_TABLE_MODEL_TYPE)
+static void
+e_table_simple_init (ETableSimple *simple)
+{
+	/* nothing to do */
+}
 
 /**
  * e_table_simple_new:
diff --git a/widgets/table/e-table-sort-info.c b/widgets/table/e-table-sort-info.c
index cdd600de53..4488ebef88 100644
--- a/widgets/table/e-table-sort-info.c
+++ b/widgets/table/e-table-sort-info.c
@@ -32,7 +32,7 @@
 
 #define ETM_CLASS(e) (E_TABLE_SORT_INFO_GET_CLASS (e))
 
-static GObjectClass *e_table_sort_info_parent_class;
+G_DEFINE_TYPE (ETableSortInfo , e_table_sort_info, G_TYPE_OBJECT)
 
 enum {
 	SORT_INFO_CHANGED,
@@ -102,9 +102,6 @@ e_table_sort_info_class_init (ETableSortInfoClass *klass)
 	klass->group_info_changed = NULL;
 }
 
-E_MAKE_TYPE(e_table_sort_info, "ETableSortInfo", ETableSortInfo,
-	    e_table_sort_info_class_init, e_table_sort_info_init, G_TYPE_OBJECT)
-
 static void
 e_table_sort_info_sort_info_changed (ETableSortInfo *info)
 {
diff --git a/widgets/table/e-table-sorted-variable.c b/widgets/table/e-table-sorted-variable.c
index 9b0e772f94..929358e8a3 100644
--- a/widgets/table/e-table-sorted-variable.c
+++ b/widgets/table/e-table-sorted-variable.c
@@ -38,7 +38,9 @@
 /* maximum insertions between an idle event that we will do without scheduling an idle sort */
 #define ETSV_INSERT_MAX (4)
 
-static ETableSubsetVariableClass *etsv_parent_class;
+/* workaround for avoiding API breakage */
+#define etsv_get_type e_table_sorted_variable_get_type
+G_DEFINE_TYPE (ETableSortedVariable, etsv, E_TABLE_SUBSET_VARIABLE_TYPE)
 
 static void etsv_sort_info_changed        (ETableSortInfo *info, ETableSortedVariable *etsv);
 static void etsv_sort                     (ETableSortedVariable *etsv);
@@ -76,11 +78,10 @@ etsv_dispose (GObject *object)
 }
 
 static void
-etsv_class_init (GObjectClass *object_class)
+etsv_class_init (ETableSortedVariableClass *klass)
 {
-	ETableSubsetVariableClass *etssv_class = E_TABLE_SUBSET_VARIABLE_CLASS(object_class);
-
-	etsv_parent_class = g_type_class_peek_parent (object_class);
+	ETableSubsetVariableClass *etssv_class = E_TABLE_SUBSET_VARIABLE_CLASS(klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->dispose = etsv_dispose;
 
@@ -100,8 +101,6 @@ etsv_init (ETableSortedVariable *etsv)
 	etsv->insert_count = 0;
 }
 
-E_MAKE_TYPE(e_table_sorted_variable, "ETableSortedVariable", ETableSortedVariable, etsv_class_init, etsv_init, E_TABLE_SUBSET_VARIABLE_TYPE)
-
 static gboolean
 etsv_sort_idle(ETableSortedVariable *etsv)
 {
diff --git a/widgets/table/e-table-sorted.c b/widgets/table/e-table-sorted.c
index c2c39517fa..7ef28d6941 100644
--- a/widgets/table/e-table-sorted.c
+++ b/widgets/table/e-table-sorted.c
@@ -35,11 +35,13 @@
 
 #define INCREMENT_AMOUNT 100
 
+/* workaround for avoding API breakage */
+#define ets_get_type e_table_sorted_get_type
+G_DEFINE_TYPE (ETableSorted, ets, E_TABLE_SUBSET_TYPE)
+
 /* maximum insertions between an idle event that we will do without scheduling an idle sort */
 #define ETS_INSERT_MAX (4)
 
-static ETableSubsetClass *ets_parent_class;
-
 static void ets_sort_info_changed        (ETableSortInfo *info, ETableSorted *ets);
 static void ets_sort                     (ETableSorted *ets);
 static void ets_proxy_model_changed      (ETableSubset *etss, ETableModel *source);
@@ -76,11 +78,10 @@ ets_dispose (GObject *object)
 }
 
 static void
-ets_class_init (GObjectClass *object_class)
+ets_class_init (ETableSortedClass *klass)
 {
-	ETableSubsetClass *etss_class = E_TABLE_SUBSET_CLASS(object_class);
-
-	ets_parent_class = g_type_class_peek_parent (object_class);
+	ETableSubsetClass *etss_class = E_TABLE_SUBSET_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	etss_class->proxy_model_changed = ets_proxy_model_changed;
 	etss_class->proxy_model_row_changed = ets_proxy_model_row_changed;
@@ -103,8 +104,6 @@ ets_init (ETableSorted *ets)
 	ets->insert_count = 0;
 }
 
-E_MAKE_TYPE(e_table_sorted, "ETableSorted", ETableSorted, ets_class_init, ets_init, E_TABLE_SUBSET_TYPE)
-
 static gboolean
 ets_sort_idle(ETableSorted *ets)
 {
@@ -130,8 +129,8 @@ e_table_sorted_new (ETableModel *source, ETableHeader *full_header, ETableSortIn
 	ETableSorted *ets = g_object_new (E_TABLE_SORTED_TYPE, NULL);
 	ETableSubset *etss = E_TABLE_SUBSET (ets);
 
-	if (ets_parent_class->proxy_model_pre_change)
-		(ets_parent_class->proxy_model_pre_change) (etss, source);
+	if (E_TABLE_SUBSET_CLASS (ets_parent_class)->proxy_model_pre_change)
+		(E_TABLE_SUBSET_CLASS (ets_parent_class)->proxy_model_pre_change) (etss, source);
 
 	if (e_table_subset_construct (etss, source, 0) == NULL){
 		g_object_unref (ets);
@@ -184,8 +183,8 @@ ets_proxy_model_row_changed (ETableSubset *subset, ETableModel *source, int row)
 	if (!E_TABLE_SORTED(subset)->sort_idle_id)
 		E_TABLE_SORTED(subset)->sort_idle_id = g_idle_add_full(50, (GSourceFunc) ets_sort_idle, subset, NULL);
 	
-	if (ets_parent_class->proxy_model_row_changed)
-		(ets_parent_class->proxy_model_row_changed) (subset, source, row);
+	if (E_TABLE_SUBSET_CLASS (ets_parent_class)->proxy_model_row_changed)
+		(E_TABLE_SUBSET_CLASS (ets_parent_class)->proxy_model_row_changed) (subset, source, row);
 }
 
 static void
@@ -194,8 +193,8 @@ ets_proxy_model_cell_changed (ETableSubset *subset, ETableModel *source, int col
 	ETableSorted *ets = E_TABLE_SORTED(subset);
 	if (e_table_sorting_utils_affects_sort(ets->sort_info, ets->full_header, col))
 		ets_proxy_model_row_changed(subset, source, row);
-	else if (ets_parent_class->proxy_model_cell_changed)
-		(ets_parent_class->proxy_model_cell_changed) (subset, source, col, row);
+	else if (E_TABLE_SUBSET_CLASS (ets_parent_class)->proxy_model_cell_changed)
+		(E_TABLE_SUBSET_CLASS (ets_parent_class)->proxy_model_cell_changed) (subset, source, col, row);
 }
 
 static void
diff --git a/widgets/table/e-table-sorter.c b/widgets/table/e-table-sorter.c
index 3874f29bb1..32b43ccc35 100644
--- a/widgets/table/e-table-sorter.c
+++ b/widgets/table/e-table-sorter.c
@@ -39,12 +39,12 @@ enum {
 	PROP_SORT_INFO
 };
 
-#define PARENT_TYPE e_sorter_get_type()
+/* workaround for avoiding API breakage */
+#define ets_get_type e_table_sorter_get_type
+G_DEFINE_TYPE (ETableSorter, ets, E_SORTER_TYPE)
 
 #define INCREMENT_AMOUNT 100
 
-static ESorterClass *parent_class;
-
 static void    	ets_model_changed      (ETableModel *etm, ETableSorter *ets);
 static void    	ets_model_row_changed  (ETableModel *etm, int row, ETableSorter *ets);
 static void    	ets_model_cell_changed (ETableModel *etm, int col, int row, ETableSorter *ets);
@@ -109,7 +109,7 @@ ets_dispose (GObject *object)
 		g_object_unref(ets->source);
 	ets->source = NULL;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (ets_parent_class)->dispose (object);
 }
 
 static void
@@ -158,8 +158,6 @@ ets_class_init (ETableSorterClass *klass)
 	GObjectClass *object_class = G_OBJECT_CLASS(klass);
 	ESorterClass *sorter_class = E_SORTER_CLASS(klass);
 
-	parent_class                            = g_type_class_peek_parent (klass);
-
 	object_class->dispose                   = ets_dispose;
 	object_class->set_property              = ets_set_property;
 	object_class->get_property              = ets_get_property;
@@ -196,8 +194,6 @@ ets_init (ETableSorter *ets)
 	ets->group_info_changed_id = 0;
 }
 
-E_MAKE_TYPE(e_table_sorter, "ETableSorter", ETableSorter, ets_class_init, ets_init, PARENT_TYPE)
-
 ETableSorter *
 e_table_sorter_new (ETableModel *source, ETableHeader *full_header, ETableSortInfo *sort_info)
 {
diff --git a/widgets/table/e-table-specification.c b/widgets/table/e-table-specification.c
index 47a146405e..cd010dbd7b 100644
--- a/widgets/table/e-table-specification.c
+++ b/widgets/table/e-table-specification.c
@@ -38,7 +38,9 @@
 
 #include "e-table-specification.h"
 
-static GObjectClass *etsp_parent_class;
+/* workaround for avoiding API breakage */
+#define etsp_get_type e_table_specification_get_type
+G_DEFINE_TYPE (ETableSpecification, etsp, G_TYPE_OBJECT)
 
 static void
 etsp_finalize (GObject *object)
@@ -64,15 +66,15 @@ etsp_finalize (GObject *object)
 	g_free (etsp->domain);
 	etsp->domain		   = NULL;
 
-	etsp_parent_class->finalize (object);
+	G_OBJECT_CLASS (etsp_parent_class)->finalize (object);
 }
 
 static void
-etsp_class_init (GObjectClass *klass)
+etsp_class_init (ETableSpecificationClass *klass)
 {
-	etsp_parent_class = g_type_class_peek_parent (klass);
-	
-	klass->finalize = etsp_finalize;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->finalize = etsp_finalize;
 }
 
 static void
@@ -99,8 +101,6 @@ etsp_init (ETableSpecification *etsp)
 	etsp->domain                 = NULL;
 }
 
-E_MAKE_TYPE (e_table_specification, "ETableSpecification", ETableSpecification, etsp_class_init, etsp_init, G_TYPE_OBJECT)
-
 /**
  * e_table_specification_new:
  *
diff --git a/widgets/table/e-table-state.c b/widgets/table/e-table-state.c
index 1b9ecfd16d..7da8775c3b 100644
--- a/widgets/table/e-table-state.c
+++ b/widgets/table/e-table-state.c
@@ -38,7 +38,7 @@
 
 #define STATE_VERSION 0.1
 
-static GObjectClass *etst_parent_class;
+G_DEFINE_TYPE (ETableState, e_table_state, G_TYPE_OBJECT)
 
 static void
 etst_dispose (GObject *object)
@@ -50,7 +50,7 @@ etst_dispose (GObject *object)
 		etst->sort_info = NULL;
 	}
 
-	G_OBJECT_CLASS (etst_parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_table_state_parent_class)->dispose (object);
 }
 	
 static void
@@ -68,28 +68,26 @@ etst_finalize (GObject *object)
 		etst->expansions = NULL;
 	}
 	
-	G_OBJECT_CLASS (etst_parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_table_state_parent_class)->finalize (object);
 }
 
 static void
-etst_class_init (GObjectClass *klass)
+e_table_state_class_init (ETableStateClass *klass)
 {
-	etst_parent_class = g_type_class_peek_parent (klass);
-	
-	klass->dispose = etst_dispose;
-	klass->finalize = etst_finalize;
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->dispose = etst_dispose;
+	object_class->finalize = etst_finalize;
 }
 
 static void
-etst_init (ETableState *state)
+e_table_state_init (ETableState *state)
 {
 	state->columns = NULL;
 	state->expansions = NULL;
 	state->sort_info = e_table_sort_info_new();
 }
 
-E_MAKE_TYPE(e_table_state, "ETableState", ETableState, etst_class_init, etst_init, G_TYPE_OBJECT)
-
 ETableState *
 e_table_state_new (void)
 {
diff --git a/widgets/table/e-table-subset-variable.c b/widgets/table/e-table-subset-variable.c
index 1adbd648c0..41fbae3feb 100644
--- a/widgets/table/e-table-subset-variable.c
+++ b/widgets/table/e-table-subset-variable.c
@@ -32,6 +32,10 @@
 
 #define ETSSV_CLASS(e) (E_TABLE_SUBSET_VARIABLE_GET_CLASS (e))
 
+/* workaround for avoiding API breakage */
+#define etssv_get_type e_table_subset_variable_get_type
+G_DEFINE_TYPE (ETableSubsetVariable, etssv, E_TABLE_SUBSET_TYPE)
+
 #define INCREMENT_AMOUNT 10
 
 static void
@@ -117,17 +121,19 @@ etssv_remove    (ETableSubsetVariable *etssv,
 }
 
 static void
-etssv_class_init (GObjectClass *object_class)
+etssv_class_init (ETableSubsetVariableClass *klass)
 {
-	ETableSubsetVariableClass *klass = E_TABLE_SUBSET_VARIABLE_CLASS(object_class);
-
 	klass->add     = etssv_add;
 	klass->add_array = etssv_add_array;
 	klass->add_all = etssv_add_all;
 	klass->remove  = etssv_remove;
 }
 
-E_MAKE_TYPE(e_table_subset_variable, "ETableSubsetVariable", ETableSubsetVariable, etssv_class_init, NULL, E_TABLE_SUBSET_TYPE)
+static void
+etssv_init (ETableSubsetVariable *etssv)
+{
+	/* nothing to do */
+}
 
 ETableModel *
 e_table_subset_variable_construct (ETableSubsetVariable *etssv,
diff --git a/widgets/table/e-table-subset.c b/widgets/table/e-table-subset.c
index df3d5f6139..6ac3b59914 100644
--- a/widgets/table/e-table-subset.c
+++ b/widgets/table/e-table-subset.c
@@ -40,7 +40,9 @@ static void etss_proxy_model_rows_deleted_real (ETableSubset *etss, ETableModel
 
 #define d(x)
 
-static ETableModelClass *etss_parent_class;
+/* workaround for avoding API breakage */
+#define etss_get_type e_table_subset_get_type
+G_DEFINE_TYPE (ETableSubset, etss, E_TABLE_MODEL_TYPE)
 
 #define ETSS_CLASS(object) (E_TABLE_SUBSET_GET_CLASS(object))
 
@@ -246,13 +248,11 @@ etss_value_to_string (ETableModel *etm, int col, const void *value)
 }
 
 static void
-etss_class_init (GObjectClass *object_class)
+etss_class_init (ETableSubsetClass *klass)
 {
-	ETableSubsetClass *klass         = (ETableSubsetClass *) object_class;
-	ETableModelClass *table_class    = (ETableModelClass *) object_class;
+	ETableModelClass *table_class    = E_TABLE_MODEL_CLASS (klass);
+	GObjectClass *object_class       = G_OBJECT_CLASS (klass);
 
-	etss_parent_class                = g_type_class_peek_parent (klass);
-	
 	object_class->dispose            = etss_dispose;
 	object_class->finalize           = etss_finalize;
 
@@ -288,8 +288,6 @@ etss_init (ETableSubset *etss)
 	etss->last_access = 0;
 }
 
-E_MAKE_TYPE(e_table_subset, "ETableSubset", ETableSubset, etss_class_init, etss_init, E_TABLE_MODEL_TYPE)
-
 static void
 etss_proxy_model_pre_change_real (ETableSubset *etss, ETableModel *etm)
 {
diff --git a/widgets/table/e-table-without.c b/widgets/table/e-table-without.c
index 6f43105703..95b3e3661b 100644
--- a/widgets/table/e-table-without.c
+++ b/widgets/table/e-table-without.c
@@ -30,12 +30,12 @@
 
 #include "e-table-without.h"
 
-#define PARENT_TYPE E_TABLE_SUBSET_TYPE
+/* workaround for avoiding API breakage */
+#define etw_get_type e_table_without_get_type
+G_DEFINE_TYPE (ETableWithout, etw, E_TABLE_SUBSET_TYPE)
 
 #define INCREMENT_AMOUNT 10
 
-static ETableSubsetClass *parent_class;
-
 struct _ETableWithoutPrivate {
 	GHashTable *hash;
 
@@ -144,8 +144,8 @@ etw_dispose (GObject *object)
 		etw->priv = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (etw_parent_class)->dispose)
+		(* G_OBJECT_CLASS (etw_parent_class)->dispose) (object);
 }
 
 static void
@@ -217,8 +217,8 @@ etw_proxy_model_changed (ETableSubset *etss, ETableModel *etm)
 	}
 	etss->n_map = j;
 
-	if (parent_class->proxy_model_changed)
-		parent_class->proxy_model_changed (etss, etm);
+	if (E_TABLE_SUBSET_CLASS (etw_parent_class)->proxy_model_changed)
+		E_TABLE_SUBSET_CLASS (etw_parent_class)->proxy_model_changed (etss, etm);
 }
 
 static void
@@ -227,8 +227,6 @@ etw_class_init (ETableWithoutClass *klass)
 	ETableSubsetClass *etss_class         = E_TABLE_SUBSET_CLASS (klass);
 	GObjectClass *object_class            = G_OBJECT_CLASS (klass);
 
-	parent_class                          = g_type_class_ref (PARENT_TYPE);
-
 	object_class->dispose                 = etw_dispose;
 
 	etss_class->proxy_model_rows_inserted = etw_proxy_model_rows_inserted;
@@ -248,8 +246,6 @@ etw_init (ETableWithout *etw)
 	etw->priv->free_duplicated_key_func = NULL;
 }
 
-E_MAKE_TYPE(e_table_without, "ETableWithout", ETableWithout, etw_class_init, etw_init, PARENT_TYPE)
-
 ETableModel *
 e_table_without_construct (ETableWithout                 *etw,
 			   ETableModel                   *source,
diff --git a/widgets/table/e-table.c b/widgets/table/e-table.c
index 4a3e8efccc..1fb97dae7d 100644
--- a/widgets/table/e-table.c
+++ b/widgets/table/e-table.c
@@ -55,7 +55,7 @@
 
 #define COLUMN_HEADER_HEIGHT 16
 
-#define PARENT_TYPE gtk_table_get_type ()
+G_DEFINE_TYPE (ETable, e_table, GTK_TYPE_TABLE)
 
 #define d(x)
 
@@ -65,8 +65,6 @@
 #define e_table_item_leave_edit_(x) (e_table_item_leave_edit((x)))
 #endif
 
-static GtkObjectClass *parent_class;
-
 enum {
 	CURSOR_CHANGE,
 	CURSOR_ACTIVATED,
@@ -223,8 +221,8 @@ static void
 et_size_request (GtkWidget *widget, GtkRequisition *request)
 {
 	ETable *et = E_TABLE (widget);
-	if (GTK_WIDGET_CLASS (parent_class)->size_request)
-		GTK_WIDGET_CLASS (parent_class)->size_request (widget, request);
+	if (GTK_WIDGET_CLASS (e_table_parent_class)->size_request)
+		GTK_WIDGET_CLASS (e_table_parent_class)->size_request (widget, request);
 	if (et->horizontal_resize)
 		request->width = MAX (request->width, et->header_width);
 }
@@ -393,7 +391,7 @@ et_dispose (GObject *object)
 	g_free(et->domain);
 	et->domain = NULL;
 
-	(*G_OBJECT_CLASS (parent_class)->dispose)(object);
+	(*G_OBJECT_CLASS (e_table_parent_class)->dispose)(object);
 }
 
 static void
@@ -401,8 +399,8 @@ et_unrealize (GtkWidget *widget)
 {
 	scroll_off (E_TABLE (widget));
 
-	if (GTK_WIDGET_CLASS (parent_class)->unrealize)
-		GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
+	if (GTK_WIDGET_CLASS (e_table_parent_class)->unrealize)
+		GTK_WIDGET_CLASS (e_table_parent_class)->unrealize (widget);
 }
 
 static gboolean
@@ -500,16 +498,15 @@ et_finalize (GObject *object)
 
 	g_free(et->domain);
 	et->domain = NULL;
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_table_parent_class)->finalize (object);
 }
 
 static void
-e_table_init (GtkObject *object)
+e_table_init (ETable *e_table)
 {
-	ETable *e_table = E_TABLE (object);
-	GtkTable *gtk_table = GTK_TABLE (object);
+	GtkTable *gtk_table = GTK_TABLE (e_table);
 
-	GTK_WIDGET_SET_FLAGS (e_table, GTK_CAN_FOCUS);
+	GTK_WIDGET_SET_FLAGS (GTK_WIDGET (e_table), GTK_CAN_FOCUS);
 
 	gtk_table->homogeneous          = FALSE;
 
@@ -3062,8 +3059,6 @@ e_table_class_init (ETableClass *class)
 	object_class                    = (GObjectClass *) class;
 	widget_class                    = (GtkWidgetClass *) class;
 
-	parent_class                    = g_type_class_peek_parent (class);
-
 	object_class->dispose           = et_dispose;
 	object_class->finalize          = et_finalize;
 	object_class->set_property      = et_set_property;
@@ -3345,4 +3340,3 @@ e_table_class_init (ETableClass *class)
 	gal_a11y_e_table_init ();
 }
 
-E_MAKE_TYPE(e_table, "ETable", ETable, e_table_class_init, e_table_init, PARENT_TYPE)
diff --git a/widgets/table/e-tree-memory-callbacks.c b/widgets/table/e-tree-memory-callbacks.c
index 8bd0c86e74..408c3930cd 100644
--- a/widgets/table/e-tree-memory-callbacks.c
+++ b/widgets/table/e-tree-memory-callbacks.c
@@ -29,7 +29,7 @@
 
 #include "e-tree-memory-callbacks.h"
 
-#define PARENT_TYPE E_TREE_MEMORY_TYPE
+G_DEFINE_TYPE (ETreeMemoryCallbacks, e_tree_memory_callbacks, E_TREE_MEMORY_TYPE)
 
 static GdkPixbuf *
 etmc_icon_at (ETreeModel *etm, ETreePath node)
@@ -186,9 +186,9 @@ etmc_value_to_string (ETreeModel *etm, int col, const void *value)
 }
 
 static void
-e_tree_memory_callbacks_class_init (GtkObjectClass *object_class)
+e_tree_memory_callbacks_class_init (ETreeMemoryCallbacksClass *klass)
 {
-	ETreeModelClass *model_class        = (ETreeModelClass *) object_class;
+	ETreeModelClass *model_class        = E_TREE_MODEL_CLASS (klass);
 
 	model_class->icon_at            = etmc_icon_at;
 
@@ -212,7 +212,11 @@ e_tree_memory_callbacks_class_init (GtkObjectClass *object_class)
 	model_class->value_to_string    = etmc_value_to_string;
 }
 
-E_MAKE_TYPE(e_tree_memory_callbacks, "ETreeMemoryCallbacks", ETreeMemoryCallbacks, e_tree_memory_callbacks_class_init, NULL, PARENT_TYPE)
+static void
+e_tree_memory_callbacks_init (ETreeMemoryCallbacks *etmc)
+{
+	/* nothing to do */
+}
 
 /**
  * e_tree_memory_callbacks_new:
diff --git a/widgets/table/e-tree-memory.c b/widgets/table/e-tree-memory.c
index b24aef5e72..a221512c18 100644
--- a/widgets/table/e-tree-memory.c
+++ b/widgets/table/e-tree-memory.c
@@ -38,7 +38,7 @@
 
 #include "e-tree-memory.h"
 
-static ETreeModelClass *parent_class;
+G_DEFINE_TYPE (ETreeMemory, e_tree_memory, E_TREE_MODEL_TYPE)
 
 enum {
 	FILL_IN_CHILDREN,
@@ -223,7 +223,7 @@ etmm_dispose (GObject *object)
 	}
 	etmm->priv = NULL;
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_tree_memory_parent_class)->dispose (object);
 }
 
 static ETreePath
@@ -341,8 +341,8 @@ etmm_node_request_collapse (ETreeModel *etm, ETreePath node)
 	if (node)
 		etmm_clear_children_computed (node);
 
-	if (parent_class->node_request_collapse) {
-		parent_class->node_request_collapse (etm, node);
+	if (E_TREE_MODEL_CLASS (e_tree_memory_parent_class)->node_request_collapse) {
+		E_TREE_MODEL_CLASS (e_tree_memory_parent_class)->node_request_collapse (etm, node);
 	}
 }
 
@@ -353,8 +353,6 @@ e_tree_memory_class_init (ETreeMemoryClass *klass)
 	ETreeModelClass *tree_class = (ETreeModelClass *) klass;
 	GObjectClass  *object_class = (GObjectClass *) klass;
 
-	parent_class                     = g_type_class_peek_parent (klass);
-	
 	signals [FILL_IN_CHILDREN] =
 		g_signal_new ("fill_in_children",
 			      G_TYPE_FROM_CLASS (object_class),
@@ -385,10 +383,8 @@ e_tree_memory_class_init (ETreeMemoryClass *klass)
 }
 
 static void
-e_tree_memory_init (GObject *object)
+e_tree_memory_init (ETreeMemory *etmm)
 {
-	ETreeMemory *etmm = (ETreeMemory *)object;
-
 	ETreeMemoryPriv *priv;
 
 	priv = g_new0 (ETreeMemoryPriv, 1);
@@ -401,10 +397,6 @@ e_tree_memory_init (GObject *object)
 	priv->destroy_user_data = NULL;
 }
 
-E_MAKE_TYPE(e_tree_memory, "ETreeMemory", ETreeMemory, e_tree_memory_class_init, e_tree_memory_init, E_TREE_MODEL_TYPE)
-
-
-
 /**
  * e_tree_memory_construct:
  * @etree: 
diff --git a/widgets/table/e-tree-model.c b/widgets/table/e-tree-model.c
index fca271c5f4..e61636d1f5 100644
--- a/widgets/table/e-tree-model.c
+++ b/widgets/table/e-tree-model.c
@@ -42,7 +42,7 @@
 
 #define d(x)
 
-static GObjectClass *parent_class;
+G_DEFINE_TYPE (ETreeModel, e_tree_model, G_TYPE_OBJECT)
 
 enum {
 	PRE_CHANGE,
@@ -61,15 +61,13 @@ static guint e_tree_model_signals [LAST_SIGNAL] = {0, };
 
 
 static void
-e_tree_model_class_init (GObjectClass *klass)
+e_tree_model_class_init (ETreeModelClass *klass)
 {
-	ETreeModelClass *tree_class = (ETreeModelClass *) klass;
-
-	parent_class = g_type_class_peek_parent (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	e_tree_model_signals [PRE_CHANGE] =
 		g_signal_new ("pre_change",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, pre_change),
 			      (GSignalAccumulator) NULL, NULL,
@@ -78,7 +76,7 @@ e_tree_model_class_init (GObjectClass *klass)
 
 	e_tree_model_signals [NO_CHANGE] =
 		g_signal_new ("no_change",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, no_change),
 			      (GSignalAccumulator) NULL, NULL,
@@ -87,7 +85,7 @@ e_tree_model_class_init (GObjectClass *klass)
 
 	e_tree_model_signals [NODE_CHANGED] =
 		g_signal_new ("node_changed",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, node_changed),
 			      (GSignalAccumulator) NULL, NULL,
@@ -96,7 +94,7 @@ e_tree_model_class_init (GObjectClass *klass)
 
 	e_tree_model_signals [NODE_DATA_CHANGED] =
 		g_signal_new ("node_data_changed",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, node_data_changed),
 			      (GSignalAccumulator) NULL, NULL,
@@ -105,7 +103,7 @@ e_tree_model_class_init (GObjectClass *klass)
 
 	e_tree_model_signals [NODE_COL_CHANGED] =
 		g_signal_new ("node_col_changed",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, node_col_changed),
 			      (GSignalAccumulator) NULL, NULL,
@@ -114,7 +112,7 @@ e_tree_model_class_init (GObjectClass *klass)
 
 	e_tree_model_signals [NODE_INSERTED] =
 		g_signal_new ("node_inserted",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, node_inserted),
 			      (GSignalAccumulator) NULL, NULL,
@@ -123,7 +121,7 @@ e_tree_model_class_init (GObjectClass *klass)
 
 	e_tree_model_signals [NODE_REMOVED] =
 		g_signal_new ("node_removed",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, node_removed),
 			      (GSignalAccumulator) NULL, NULL,
@@ -132,7 +130,7 @@ e_tree_model_class_init (GObjectClass *klass)
 
 	e_tree_model_signals [NODE_DELETED] =
 		g_signal_new ("node_deleted",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, node_deleted),
 			      (GSignalAccumulator) NULL, NULL,
@@ -141,63 +139,66 @@ e_tree_model_class_init (GObjectClass *klass)
 
 	e_tree_model_signals [NODE_REQUEST_COLLAPSE] =
 		g_signal_new ("node_request_collapse",
-			      G_TYPE_FROM_CLASS (klass),
+			      G_TYPE_FROM_CLASS (object_class),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (ETreeModelClass, node_request_collapse),
 			      (GSignalAccumulator) NULL, NULL,
 			      g_cclosure_marshal_VOID__POINTER,
 			      G_TYPE_NONE, 1, G_TYPE_POINTER);
 
-	tree_class->get_root              = NULL;
-
-	tree_class->get_parent            = NULL;
-	tree_class->get_first_child       = NULL;
-	tree_class->get_last_child        = NULL;
-	tree_class->get_next              = NULL;
-	tree_class->get_prev              = NULL;
-
-	tree_class->is_root               = NULL;
-	tree_class->is_expandable         = NULL;
-	tree_class->get_children          = NULL;
-	tree_class->depth                 = NULL;
-
-	tree_class->icon_at               = NULL;
-
-	tree_class->get_expanded_default  = NULL;
-	tree_class->column_count          = NULL;
-
-	tree_class->has_save_id           = NULL;
-	tree_class->get_save_id           = NULL;
-	tree_class->has_get_node_by_id    = NULL;
-	tree_class->get_node_by_id        = NULL;
-
-	tree_class->has_change_pending    = NULL;
-
-	tree_class->sort_value_at 	  = NULL;
-	tree_class->value_at              = NULL;
-	tree_class->set_value_at          = NULL;
-	tree_class->is_editable           = NULL;
-
-	tree_class->duplicate_value       = NULL;
-	tree_class->free_value            = NULL;
-	tree_class->initialize_value      = NULL;
-	tree_class->value_is_empty        = NULL;
-	tree_class->value_to_string       = NULL;
-
-	tree_class->pre_change            = NULL;
-	tree_class->no_change             = NULL;
-	tree_class->node_changed          = NULL;
-	tree_class->node_data_changed     = NULL;
-	tree_class->node_col_changed      = NULL;
-	tree_class->node_inserted         = NULL;
-	tree_class->node_removed          = NULL;
-	tree_class->node_deleted          = NULL;
-	tree_class->node_request_collapse = NULL;
+	klass->get_root              = NULL;
+
+	klass->get_parent            = NULL;
+	klass->get_first_child       = NULL;
+	klass->get_last_child        = NULL;
+	klass->get_next              = NULL;
+	klass->get_prev              = NULL;
+
+	klass->is_root               = NULL;
+	klass->is_expandable         = NULL;
+	klass->get_children          = NULL;
+	klass->depth                 = NULL;
+
+	klass->icon_at               = NULL;
+
+	klass->get_expanded_default  = NULL;
+	klass->column_count          = NULL;
+
+	klass->has_save_id           = NULL;
+	klass->get_save_id           = NULL;
+	klass->has_get_node_by_id    = NULL;
+	klass->get_node_by_id        = NULL;
+
+	klass->has_change_pending    = NULL;
+
+	klass->sort_value_at 	  = NULL;
+	klass->value_at              = NULL;
+	klass->set_value_at          = NULL;
+	klass->is_editable           = NULL;
+
+	klass->duplicate_value       = NULL;
+	klass->free_value            = NULL;
+	klass->initialize_value      = NULL;
+	klass->value_is_empty        = NULL;
+	klass->value_to_string       = NULL;
+
+	klass->pre_change            = NULL;
+	klass->no_change             = NULL;
+	klass->node_changed          = NULL;
+	klass->node_data_changed     = NULL;
+	klass->node_col_changed      = NULL;
+	klass->node_inserted         = NULL;
+	klass->node_removed          = NULL;
+	klass->node_deleted          = NULL;
+	klass->node_request_collapse = NULL;
 }
 
-E_MAKE_TYPE(e_tree_model, "ETreeModel", ETreeModel, e_tree_model_class_init, NULL, G_TYPE_OBJECT)
+static void
+e_tree_model_init (ETreeModel *tree_model)
+{
+	/* nothing to do */
+}
 
-
 /* signals */
 
 /**
diff --git a/widgets/table/e-tree-scrolled.c b/widgets/table/e-tree-scrolled.c
index ce85ea8dbc..fe34cd391e 100644
--- a/widgets/table/e-tree-scrolled.c
+++ b/widgets/table/e-tree-scrolled.c
@@ -39,9 +39,7 @@
 
 #define COLUMN_HEADER_HEIGHT 16
 
-#define PARENT_TYPE gtk_scrolled_window_get_type ()
-
-static GtkObjectClass *parent_class;
+G_DEFINE_TYPE (ETreeScrolled, e_tree_scrolled, GTK_TYPE_SCROLLED_WINDOW)
 
 enum {
 	PROP_0,
@@ -49,13 +47,11 @@ enum {
 };
 
 static void
-e_tree_scrolled_init (GtkObject *object)
+e_tree_scrolled_init (ETreeScrolled *ets)
 {
-	ETreeScrolled *ets;
 	GtkScrolledWindow *scrolled_window;
 
-	ets = E_TREE_SCROLLED (object);
-	scrolled_window = GTK_SCROLLED_WINDOW (object);
+	scrolled_window = GTK_SCROLLED_WINDOW (ets);
 
 	GTK_WIDGET_SET_FLAGS (ets, GTK_CAN_FOCUS);
 
@@ -218,8 +214,6 @@ e_tree_scrolled_class_init (ETreeScrolledClass *class)
 	object_class = (GObjectClass *) class;
 	widget_class = (GtkWidgetClass *) class;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->get_property = ets_get_property;
 
 	widget_class->grab_focus = ets_grab_focus;
@@ -234,5 +228,3 @@ e_tree_scrolled_class_init (ETreeScrolledClass *class)
 							      G_PARAM_READABLE));
 }
 
-E_MAKE_TYPE(e_tree_scrolled, "ETreeScrolled", ETreeScrolled, e_tree_scrolled_class_init, e_tree_scrolled_init, PARENT_TYPE)
-
diff --git a/widgets/table/e-tree-selection-model.c b/widgets/table/e-tree-selection-model.c
index 6e69615aeb..7803c597a8 100644
--- a/widgets/table/e-tree-selection-model.c
+++ b/widgets/table/e-tree-selection-model.c
@@ -30,9 +30,7 @@
 
 #include "e-tree-selection-model.h"
 
-#define PARENT_TYPE e_selection_model_get_type ()
-
-static ESelectionModelClass *parent_class;
+G_DEFINE_TYPE (ETreeSelectionModel, e_tree_selection_model, E_SELECTION_MODEL_TYPE)
 
 enum {
 	PROP_0,
@@ -280,8 +278,8 @@ etsm_dispose (GObject *object)
 
 	drop_model(etsm);
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_tree_selection_model_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_tree_selection_model_parent_class)->dispose) (object);
 }
 
 static void
@@ -296,8 +294,8 @@ etsm_finalize (GObject *object)
 		etsm->priv = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->finalize)
-		(* G_OBJECT_CLASS (parent_class)->finalize) (object);
+	if (G_OBJECT_CLASS (e_tree_selection_model_parent_class)->finalize)
+		(* G_OBJECT_CLASS (e_tree_selection_model_parent_class)->finalize) (object);
 }
 
 static void
@@ -778,8 +776,6 @@ e_tree_selection_model_class_init (ETreeSelectionModelClass *klass)
 	GObjectClass *object_class;
 	ESelectionModelClass *esm_class;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class = G_OBJECT_CLASS(klass);
 	esm_class = E_SELECTION_MODEL_CLASS(klass);
 
@@ -842,5 +838,3 @@ e_tree_selection_model_new (void)
 	return g_object_new (E_TREE_SELECTION_MODEL_TYPE, NULL);
 }
 
-E_MAKE_TYPE(e_tree_selection_model, "ETreeSelectionModel", ETreeSelectionModel,
-	    e_tree_selection_model_class_init, e_tree_selection_model_init, PARENT_TYPE)
diff --git a/widgets/table/e-tree-simple.c b/widgets/table/e-tree-simple.c
index 54ffa894b8..11d26541ab 100644
--- a/widgets/table/e-tree-simple.c
+++ b/widgets/table/e-tree-simple.c
@@ -143,7 +143,7 @@ e_tree_simple_class_init (GObjectClass *object_class)
 	model_class      ->is_editable      = simple_is_editable;
 }
 
-E_MAKE_TYPE(e_tree_simple, "ETreeSimple", ETreeSimple, e_tree_simple_class_init, NULL, E_TREE_MODEL_TYPE)
+G_DEFINE_TYPE (ETreeSimple, e_tree_simple, E_TREE_MODEL_TYPE)
 
 /**
  * e_tree_simple_new:
diff --git a/widgets/table/e-tree-sorted-variable.c b/widgets/table/e-tree-sorted-variable.c
index 61e87e36ff..381315c3d0 100644
--- a/widgets/table/e-tree-sorted-variable.c
+++ b/widgets/table/e-tree-sorted-variable.c
@@ -128,7 +128,7 @@ etsv_init (ETreeSortedVariable *etsv)
 	etsv->insert_count = 0;
 }
 
-E_MAKE_TYPE(e_tree_sorted_variable, "ETreeSortedVariable", ETreeSortedVariable, etsv_class_init, etsv_init, E_TREE_MODEL_TYPE)
+G_DEFINE_TYPE (ETreeSortedVariable, etsv, E_TREE_MODEL_TYPE)
 
 static gboolean
 etsv_sort_idle(ETreeSortedVariable *etsv)
diff --git a/widgets/table/e-tree-sorted.c b/widgets/table/e-tree-sorted.c
index 39e3a1cdfb..5a08e4a009 100644
--- a/widgets/table/e-tree-sorted.c
+++ b/widgets/table/e-tree-sorted.c
@@ -49,7 +49,7 @@
 
 #define d(x)
 
-static ETreeModel *parent_class;
+G_DEFINE_TYPE (ETreeSorted, e_tree_sorted, E_TREE_MODEL_TYPE)
 
 enum {
 	NODE_RESORTED,
@@ -588,7 +588,7 @@ ets_dispose (GObject *object)
 
 	/* FIXME lots of stuff to free here */
 	if (!priv) {
-		G_OBJECT_CLASS (parent_class)->dispose (object);
+		G_OBJECT_CLASS (e_tree_sorted_parent_class)->dispose (object);
 		return;
 	}
 
@@ -657,7 +657,7 @@ ets_finalize (GObject *object)
 	g_free (ets->priv);
 	ets->priv = NULL;
 
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_tree_sorted_parent_class)->finalize (object);
 }
 
 static ETreePath
@@ -1152,8 +1152,6 @@ e_tree_sorted_class_init (ETreeSortedClass *klass)
 	ETreeModelClass *tree_class      = E_TREE_MODEL_CLASS (klass);
 	GObjectClass *object_class       = G_OBJECT_CLASS (klass);
 
-	parent_class                     = g_type_class_peek_parent (klass);
-
 	klass->node_resorted             = NULL;
 	
 	object_class->dispose            = ets_dispose;
@@ -1205,10 +1203,8 @@ e_tree_sorted_class_init (ETreeSortedClass *klass)
 }
 
 static void
-e_tree_sorted_init (GObject *object)
+e_tree_sorted_init (ETreeSorted *ets)
 {
-	ETreeSorted *ets = (ETreeSorted *)object;
-
 	ETreeSortedPriv *priv;
 
 	priv                                      = g_new0 (ETreeSortedPriv, 1);
@@ -1241,8 +1237,6 @@ e_tree_sorted_init (GObject *object)
 	priv->nested_resort_idle                  = 0;
 }
 
-E_MAKE_TYPE(e_tree_sorted, "ETreeSorted", ETreeSorted, e_tree_sorted_class_init, e_tree_sorted_init, E_TREE_MODEL_TYPE)
-
 /**
  * e_tree_sorted_construct:
  * @etree: 
diff --git a/widgets/table/e-tree-table-adapter.c b/widgets/table/e-tree-table-adapter.c
index 5979b37eb8..86e46b3121 100644
--- a/widgets/table/e-tree-table-adapter.c
+++ b/widgets/table/e-tree-table-adapter.c
@@ -38,13 +38,13 @@
 #include "e-table-sorting-utils.h"
 #include "e-tree-table-adapter.h"
 
-#define PARENT_TYPE E_TABLE_MODEL_TYPE
+/* workaround for avoiding API breakage */
+#define etta_get_type e_tree_table_adapter_get_type
+G_DEFINE_TYPE (ETreeTableAdapter, etta, E_TABLE_MODEL_TYPE)
 #define d(x)
 
 #define INCREMENT_AMOUNT 100
 
-static ETableModelClass *parent_class;
-
 typedef struct {
 	ETreePath path;
 	guint32 num_visible_children;
@@ -509,7 +509,7 @@ etta_finalize (GObject *object)
 
 	g_free (etta->priv);
 
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (etta_parent_class)->finalize (object);
 }
 
 static void
@@ -551,7 +551,7 @@ etta_dispose (GObject *object)
 		etta->priv->source = NULL;
 	}
 
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (etta_parent_class)->dispose (object);
 }
 
 static int
@@ -681,8 +681,6 @@ etta_class_init (ETreeTableAdapterClass *klass)
 	ETableModelClass *table_class   = (ETableModelClass *) klass;
 	GObjectClass *object_class      = (GObjectClass *) klass;
 
-	parent_class                    = g_type_class_peek_parent (klass);
-	
 	object_class->dispose           = etta_dispose;
 	object_class->finalize          = etta_finalize;
 
@@ -732,8 +730,6 @@ etta_init (ETreeTableAdapter *etta)
 	etta->priv->node_request_collapse_id = 0;
 }
 
-E_MAKE_TYPE(e_tree_table_adapter, "ETreeTableAdapter", ETreeTableAdapter, etta_class_init, etta_init, PARENT_TYPE)
-
 static void
 etta_proxy_pre_change (ETreeModel *etm, ETreeTableAdapter *etta)
 {
diff --git a/widgets/table/e-tree.c b/widgets/table/e-tree.c
index da60bc2a6a..d9cf019a6b 100644
--- a/widgets/table/e-tree.c
+++ b/widgets/table/e-tree.c
@@ -54,9 +54,7 @@
 
 #define COLUMN_HEADER_HEIGHT 16
 
-#define PARENT_TYPE gtk_table_get_type ()
-
-static GtkObjectClass *parent_class;
+G_DEFINE_TYPE (ETree, e_tree, GTK_TYPE_TABLE)
 
 #define d(x)
 
@@ -429,8 +427,8 @@ et_dispose (GObject *object)
 		et->priv = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		G_OBJECT_CLASS (parent_class)->dispose (object);
+	if (G_OBJECT_CLASS (e_tree_parent_class)->dispose)
+		G_OBJECT_CLASS (e_tree_parent_class)->dispose (object);
 }
 
 static void
@@ -439,8 +437,8 @@ et_unrealize (GtkWidget *widget)
 	scroll_off (E_TREE (widget));
 	hover_off (E_TREE (widget));
 
-	if (GTK_WIDGET_CLASS (parent_class)->unrealize)
-		GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
+	if (GTK_WIDGET_CLASS (e_tree_parent_class)->unrealize)
+		GTK_WIDGET_CLASS (e_tree_parent_class)->unrealize (widget);
 }
 
 typedef struct {
@@ -526,12 +524,11 @@ et_search_accept (ETableSearch *search, ETree *et)
 }
 
 static void
-e_tree_init (GtkObject *object)
+e_tree_init (ETree *e_tree)
 {
-	ETree *e_tree                                    = E_TREE (object);
-	GtkTable *gtk_table                              = GTK_TABLE (object);
+	GtkTable *gtk_table = GTK_TABLE (e_tree);
 
-	GTK_WIDGET_SET_FLAGS (e_tree, GTK_CAN_FOCUS);
+	GTK_WIDGET_SET_FLAGS (GTK_WIDGET (e_tree), GTK_CAN_FOCUS);
 
 	gtk_table->homogeneous               = FALSE;
 
@@ -3049,8 +3046,6 @@ e_tree_class_init (ETreeClass *class)
 	object_class                   = (GObjectClass *) class;
 	widget_class                   = (GtkWidgetClass *) class;
 
-	parent_class                   = g_type_class_ref (PARENT_TYPE);
-
 	object_class->dispose          = et_dispose;
 	object_class->set_property     = et_set_property;
 	object_class->get_property     = et_get_property;
@@ -3366,4 +3361,3 @@ e_tree_class_init (ETreeClass *class)
 	gal_a11y_e_tree_init ();
 }
 
-E_MAKE_TYPE(e_tree, "ETree", ETree, e_tree_class_init, e_tree_init, PARENT_TYPE)
diff --git a/widgets/text/e-completion-callbacks.c b/widgets/text/e-completion-callbacks.c
index 229a28d760..f6412e95ac 100644
--- a/widgets/text/e-completion-callbacks.c
+++ b/widgets/text/e-completion-callbacks.c
@@ -38,25 +38,13 @@ static void e_completion_callbacks_init       (ECompletionCallbacks *complete);
 static void     callbacks_request_completion    (ECompletion *comp, const gchar *search_text, gint pos, gint limit);
 static void     callbacks_end_completion        (ECompletion *comp);
 
-#define PARENT_TYPE E_COMPLETION_TYPE
-static ECompletionClass *parent_class;
-
-
-
-E_MAKE_TYPE (e_completion_callbacks,
-	     "ECompletionCallbacks",
-	     ECompletionCallbacks,
-	     e_completion_callbacks_class_init,
-	     e_completion_callbacks_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ECompletionCallbacks, e_completion_callbacks, E_COMPLETION_TYPE)
 
 static void
 e_completion_callbacks_class_init (ECompletionCallbacksClass *klass)
 {
 	ECompletionClass *comp_class = (ECompletionClass *) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	comp_class->request_completion = callbacks_request_completion;
 	comp_class->end_completion = callbacks_end_completion;
 }
diff --git a/widgets/text/e-completion-view.c b/widgets/text/e-completion-view.c
index 0837160d6f..f08f2ecbc5 100644
--- a/widgets/text/e-completion-view.c
+++ b/widgets/text/e-completion-view.c
@@ -59,11 +59,6 @@ static void    e_completion_view_class_init (ECompletionViewClass *klass);
 static void    e_completion_view_init       (ECompletionView *completion);
 static void    e_completion_view_dispose    (GObject *object);
 
-#define PARENT_TYPE GTK_TYPE_EVENT_BOX
-static GtkObjectClass *parent_class;
-
-
-
 static gint
 e_completion_view_local_key_press_handler (GtkWidget *w, GdkEventKey *ev)
 {
@@ -199,21 +194,14 @@ e_completion_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 	}
 }
 
-E_MAKE_TYPE (e_completion_view,
-	     "ECompletionView",
-	     ECompletionView,
-	     e_completion_view_class_init,
-	     e_completion_view_init,
-	     PARENT_TYPE)
-	     
+G_DEFINE_TYPE (ECompletionView, e_completion_view, GTK_TYPE_EVENT_BOX)
+
 static void
 e_completion_view_class_init (ECompletionViewClass *klass)
 {
 	GObjectClass *object_class = (GObjectClass *) klass;
 	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	e_completion_view_signals[E_COMPLETION_VIEW_NONEMPTY] =
 		g_signal_new ("nonempty",
 			      G_OBJECT_CLASS_TYPE (object_class),
@@ -309,8 +297,8 @@ e_completion_view_dispose (GObject *object)
 		g_object_unref (cv->completion);
 	cv->completion = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_completion_view_parent_class)->dispose)
+		(G_OBJECT_CLASS (e_completion_view_parent_class)->dispose) (object);
 }
 
 static void
diff --git a/widgets/text/e-completion.c b/widgets/text/e-completion.c
index 7c45c8e0ec..1de9baf8da 100644
--- a/widgets/text/e-completion.c
+++ b/widgets/text/e-completion.c
@@ -64,25 +64,13 @@ static void     e_completion_clear_matches      (ECompletion *complete);
 static gboolean e_completion_sort               (ECompletion *complete);
 #endif
 
-#define PARENT_TYPE GTK_TYPE_OBJECT
-static GtkObjectClass *parent_class;
-
-
-
-E_MAKE_TYPE (e_completion,
-	     "ECompletion",
-	     ECompletion,
-	     e_completion_class_init,
-	     e_completion_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ECompletion, e_completion, GTK_TYPE_OBJECT)
 
 static void
 e_completion_class_init (ECompletionClass *klass)
 {
 	GObjectClass *object_class = (GObjectClass *) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	e_completion_signals[COMPLETION_STARTED] =
 		g_signal_new ("completion_started",
 			      G_OBJECT_CLASS_TYPE (object_class),
@@ -140,8 +128,8 @@ e_completion_dispose (GObject *object)
 		complete->priv = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_completion_parent_class)->dispose)
+		(G_OBJECT_CLASS (e_completion_parent_class)->dispose) (object);
 }
 
 static void
diff --git a/widgets/text/e-entry.c b/widgets/text/e-entry.c
index 979048671f..589f3840dc 100644
--- a/widgets/text/e-entry.c
+++ b/widgets/text/e-entry.c
@@ -50,9 +50,7 @@
 
 #define d(x)
 
-#define PARENT_TYPE gtk_table_get_type ()
-
-static GtkObjectClass *parent_class;
+G_DEFINE_TYPE (EEntry, e_entry, GTK_TYPE_TABLE)
 
 enum {
 	E_ENTRY_CHANGED,
@@ -296,10 +294,9 @@ proxy_populate_popup (EText *text, GdkEventButton *ev, gint pos, GtkWidget *menu
 }
 
 static void
-e_entry_init (GtkObject *object)
+e_entry_init (EEntry *entry)
 {
-	EEntry *entry = E_ENTRY (object);
-	GtkTable *gtk_table = GTK_TABLE (object);
+	GtkTable *gtk_table = GTK_TABLE (entry);
 
 	entry->priv = g_new0 (EEntryPrivate, 1);
 
@@ -1127,8 +1124,8 @@ e_entry_dispose (GObject *object)
 		entry->priv = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_entry_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_entry_parent_class)->dispose) (object);
 }
 
 static void
@@ -1136,8 +1133,8 @@ e_entry_realize (GtkWidget *widget)
 {
 	EEntry *entry;
 
-	if (GTK_WIDGET_CLASS (parent_class)->realize)
-		(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
+	if (GTK_WIDGET_CLASS (e_entry_parent_class)->realize)
+		(* GTK_WIDGET_CLASS (e_entry_parent_class)->realize) (widget);
 
 	entry = E_ENTRY (widget);
 
@@ -1150,12 +1147,10 @@ e_entry_realize (GtkWidget *widget)
 }
 
 static void
-e_entry_class_init (GObjectClass *object_class)
+e_entry_class_init (EEntryClass *klass)
 {
-	EEntryClass *klass = E_ENTRY_CLASS(object_class);
-	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(object_class);
-
-	parent_class = g_type_class_ref (PARENT_TYPE);
+	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
 	object_class->set_property = et_set_property;
 	object_class->get_property = et_get_property;
@@ -1343,4 +1338,4 @@ e_entry_class_init (GObjectClass *object_class)
 							       G_PARAM_READWRITE));
 }
 
-E_MAKE_TYPE(e_entry, "EEntry", EEntry, e_entry_class_init, e_entry_init, PARENT_TYPE)
+
diff --git a/widgets/text/e-table-text-model.c b/widgets/text/e-table-text-model.c
index 7ecaa2f543..e0b8b6bae2 100644
--- a/widgets/text/e-table-text-model.c
+++ b/widgets/text/e-table-text-model.c
@@ -41,27 +41,8 @@ static void e_table_text_model_insert (ETextModel *model, gint postion, const gc
 static void e_table_text_model_insert_length (ETextModel *model, gint postion, const gchar *text, gint length);
 static void e_table_text_model_delete (ETextModel *model, gint postion, gint length);
 
-#define PARENT_TYPE E_TYPE_TEXT_MODEL
-static GtkObject *parent_class;
-
-
-
-/**
- * e_table_text_model_get_type:
- * @void: 
- * 
- * Registers the &ETableTextModel class if necessary, and returns the type ID
- * associated to it.
- * 
- * Return value: The type ID of the &ETableTextModel class.
- **/
-E_MAKE_TYPE (e_table_text_model,
-	     "ETableTextModel",
-	     ETableTextModel,
-	     e_table_text_model_class_init,
-	     e_table_text_model_init,
-	     PARENT_TYPE)
-	     
+G_DEFINE_TYPE (ETableTextModel, e_table_text_model, E_TYPE_TEXT_MODEL)
+
 /* Class initialization function for the text item */
 static void
 e_table_text_model_class_init (ETableTextModelClass *klass)
@@ -72,8 +53,6 @@ e_table_text_model_class_init (ETableTextModelClass *klass)
 	object_class = (GObjectClass *) klass;
 	model_class = (ETextModelClass *) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	model_class->get_text = e_table_text_model_get_text;
 	model_class->set_text = e_table_text_model_set_text;
 	model_class->insert = e_table_text_model_insert;
@@ -122,8 +101,8 @@ e_table_text_model_dispose (GObject *object)
 		g_object_unref (model->model);
 	model->model = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_table_text_model_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_table_text_model_parent_class)->dispose) (object);
 }
 static const gchar *
 e_table_text_model_get_text (ETextModel *text_model)
diff --git a/widgets/text/e-text-model-uri.c b/widgets/text/e-text-model-uri.c
index 95ce7cc076..9bf0af7805 100644
--- a/widgets/text/e-text-model-uri.c
+++ b/widgets/text/e-text-model-uri.c
@@ -51,15 +51,7 @@ struct _ObjInfo {
 	gint offset, len;
 };
 
-#define PARENT_TYPE E_TYPE_TEXT_MODEL
-static GtkObject *parent_class;
-
-E_MAKE_TYPE (e_text_model_uri,
-	     "ETextModelURI",
-	     ETextModelURI,
-	     e_text_model_uri_class_init,
-	     e_text_model_uri_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ETextModelURI, e_text_model_uri, E_TYPE_TEXT_MODEL)
 	     
 static void
 e_text_model_uri_class_init (ETextModelURIClass *klass)
@@ -70,8 +62,6 @@ e_text_model_uri_class_init (ETextModelURIClass *klass)
 	object_class = (GObjectClass *) klass;
 	model_class = E_TEXT_MODEL_CLASS (klass);
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	object_class->dispose = e_text_model_uri_dispose;
 
 	model_class->object_activated = e_text_model_uri_activate_nth_object;
@@ -105,8 +95,8 @@ e_text_model_uri_dispose (GObject *object)
 	g_list_free (model_uri->uris);
 	model_uri->uris = NULL;
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_text_model_uri_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_text_model_uri_parent_class)->dispose) (object);
 
 }
 
@@ -254,8 +244,8 @@ e_text_model_uri_objectify (ETextModel *model)
 	if (model_uri->objectify_idle == 0)
 		model_uri->objectify_idle = g_idle_add (objectify_idle_cb, model);
 
-	if (E_TEXT_MODEL_CLASS(parent_class)->objectify)
-		E_TEXT_MODEL_CLASS(parent_class)->objectify (model);
+	if (E_TEXT_MODEL_CLASS(e_text_model_uri_parent_class)->objectify)
+		E_TEXT_MODEL_CLASS(e_text_model_uri_parent_class)->objectify (model);
 }
 
 static void
@@ -288,8 +278,8 @@ e_text_model_uri_validate_pos (ETextModel *model, gint pos)
 
 	
 
-	if (E_TEXT_MODEL_CLASS (parent_class)->validate_pos)
-		pos = E_TEXT_MODEL_CLASS (parent_class)->validate_pos (model, pos);
+	if (E_TEXT_MODEL_CLASS (e_text_model_uri_parent_class)->validate_pos)
+		pos = E_TEXT_MODEL_CLASS (e_text_model_uri_parent_class)->validate_pos (model, pos);
 
 	return pos;
 }
diff --git a/widgets/text/e-text-model.c b/widgets/text/e-text-model.c
index eb7b728c19..684dfea99a 100644
--- a/widgets/text/e-text-model.c
+++ b/widgets/text/e-text-model.c
@@ -61,26 +61,7 @@ static void         e_text_model_real_insert            (ETextModel *model, gint
 static void         e_text_model_real_insert_length     (ETextModel *model, gint postion, const gchar *text, gint length);
 static void         e_text_model_real_delete            (ETextModel *model, gint postion, gint length);
 
-#define PARENT_TYPE G_TYPE_OBJECT
-static GObject *parent_class;
-
-
-
-/**
- * e_text_model_get_type:
- * @void: 
- * 
- * Registers the &ETextModel class if necessary, and returns the type ID
- * associated to it.
- * 
- * Return value: The type ID of the &ETextModel class.
- **/
-E_MAKE_TYPE (e_text_model,
-	     "ETextModel",
-	     ETextModel,
-	     e_text_model_class_init,
-	     e_text_model_init,
-	     PARENT_TYPE)
+G_DEFINE_TYPE (ETextModel, e_text_model, G_TYPE_OBJECT)
 
 /* Class initialization function for the text item */
 static void
@@ -90,8 +71,6 @@ e_text_model_class_init (ETextModelClass *klass)
 
 	object_class = (GObjectClass *) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	e_text_model_signals[E_TEXT_MODEL_CHANGED] =
 		g_signal_new ("changed",
 			      G_OBJECT_CLASS_TYPE (object_class),
@@ -178,8 +157,8 @@ e_text_model_dispose (GObject *object)
 		model->priv = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		G_OBJECT_CLASS (parent_class)->dispose (object);
+	if (G_OBJECT_CLASS (e_text_model_parent_class)->dispose)
+		G_OBJECT_CLASS (e_text_model_parent_class)->dispose (object);
 }
 
 static gint
diff --git a/widgets/text/e-text.c b/widgets/text/e-text.c
index c523548765..932144a343 100644
--- a/widgets/text/e-text.c
+++ b/widgets/text/e-text.c
@@ -58,7 +58,7 @@
 
 #include "e-text.h"
 
-#define PARENT_TYPE (gnome_canvas_item_get_type())
+G_DEFINE_TYPE (EText, e_text, GNOME_TYPE_CANVAS_ITEM)
 
 #define BORDER_INDENT 3
 #define d(x)
@@ -168,7 +168,6 @@ static gboolean e_text_delete_surrounding_cb   (GtkIMContext *context,
 						gint          n_chars,
 						EText        *text);
 
-static GnomeCanvasItemClass *parent_class;
 static GdkAtom clipboard_atom = GDK_NONE;
 
 
@@ -277,8 +276,8 @@ e_text_dispose (GObject *object)
 		text->font_desc = NULL;
 	}
 
-	if (G_OBJECT_CLASS (parent_class)->dispose)
-		(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+	if (G_OBJECT_CLASS (e_text_parent_class)->dispose)
+		(* G_OBJECT_CLASS (e_text_parent_class)->dispose) (object);
 }
 
 static void
@@ -1199,8 +1198,8 @@ e_text_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int fla
 
 	text = E_TEXT (item);
 
-	if (parent_class->update)
-		(* parent_class->update) (item, affine, clip_path, flags);
+	if (GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->update)
+		(* GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->update) (item, affine, clip_path, flags);
 
 	if ( text->needs_recalc_bounds
 	     || (flags & GNOME_CANVAS_UPDATE_AFFINE)) {
@@ -1239,8 +1238,8 @@ e_text_realize (GnomeCanvasItem *item)
 
 	text = E_TEXT (item);
 
-	if (parent_class->realize)
-		(* parent_class->realize) (item);
+	if (GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->realize)
+		(* GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->realize) (item);
 
 	create_layout (text);
 
@@ -1273,8 +1272,8 @@ e_text_unrealize (GnomeCanvasItem *item)
 	gdk_cursor_unref (text->default_cursor);
 	text->default_cursor = NULL;
 
-	if (parent_class->unrealize)
-		(* parent_class->unrealize) (item);
+	if (GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->unrealize)
+		(* GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->unrealize) (item);
 }
 
 static void
@@ -2486,8 +2485,8 @@ e_text_event (GnomeCanvasItem *item, GdkEvent *event)
 	}
 	if (return_val)
 		return return_val;
-	if (GNOME_CANVAS_ITEM_CLASS(parent_class)->event)
-		return GNOME_CANVAS_ITEM_CLASS(parent_class)->event(item, event);
+	if (GNOME_CANVAS_ITEM_CLASS(e_text_parent_class)->event)
+		return GNOME_CANVAS_ITEM_CLASS(e_text_parent_class)->event(item, event);
 	else
 		return 0;
 }
@@ -3415,8 +3414,6 @@ e_text_class_init (ETextClass *klass)
 	gobject_class = (GObjectClass *) klass;
 	item_class = (GnomeCanvasItemClass *) klass;
 
-	parent_class = g_type_class_ref (PARENT_TYPE);
-
 	gobject_class->dispose = e_text_dispose;
 	gobject_class->set_property = e_text_set_property;
 	gobject_class->get_property = e_text_get_property;
@@ -3808,23 +3805,6 @@ e_text_init (EText *text)
 	e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM(text), e_text_reflow);
 }
 
-/**
- * e_text_get_type:
- * @void: 
- * 
- * Registers the &EText class if necessary, and returns the type ID
- * associated to it.
- * 
- * Return value: The type ID of the &EText class.
- **/
-E_MAKE_TYPE (e_text,
-	     "EText",
-	     EText,
-	     e_text_class_init,
-	     e_text_init,
-	     PARENT_TYPE)
-
-
 
 /* IM Context Callbacks */
 static void
author	Hiroyuki Ikezoe <poincare@ikezoe.net>	2007-07-28 05:14:15 +0800
committer	Matthew Barnes <mbarnes@src.gnome.org>	2007-07-28 05:14:15 +0800
commit	6baf4d9bcc8fac7d3ac4442ffa54138f9670b20f (patch)
tree	64868338277e36a40c6b37106dfb8112fc278264
parent	08de5e9e147248b84bc1fa618f7cc9d892ddb136 (diff)
download	gsoc2013-evolution-6baf4d9bcc8fac7d3ac4442ffa54138f9670b20f.tar.gz gsoc2013-evolution-6baf4d9bcc8fac7d3ac4442ffa54138f9670b20f.tar.zst gsoc2013-evolution-6baf4d9bcc8fac7d3ac4442ffa54138f9670b20f.zip