[gimp/gtk3-port: 319/451] libimp*: add private pointers to all instance structs



commit 38ec91c1fb50eea960bf2c2e7948aa59073971a0
Author: Michael Natterer <mitch gimp org>
Date:   Thu May 3 12:51:36 2018 +0200

    libimp*: add private pointers to all instance structs
    
    even if we don't have private members (yet). Also make class padding 8
    pointers in all headers. This commit moves nothing to private, it just
    makes all headers consistent and adjusts .c files accordigly.

 libgimp/gimpaspectpreview.c                    |   25 ++++---
 libgimp/gimpaspectpreview.h                    |   11 +++-
 libgimp/gimpbrushselectbutton.c                |   92 +++++++++--------------
 libgimp/gimpbrushselectbutton.h                |    9 ++-
 libgimp/gimpdrawablepreview.c                  |   32 +++++----
 libgimp/gimpdrawablepreview.h                  |   11 +++-
 libgimp/gimpfontselectbutton.c                 |   74 ++++++++-----------
 libgimp/gimpfontselectbutton.h                 |   11 +++-
 libgimp/gimpgradientselectbutton.c             |   88 +++++++++--------------
 libgimp/gimpgradientselectbutton.h             |    9 ++-
 libgimp/gimpprocbrowserdialog.h                |   12 +++-
 libgimp/gimpselectbutton.c                     |    1 +
 libgimp/gimpselectbutton.h                     |    7 ++-
 libgimp/gimptilebackendplugin.h                |    2 +-
 libgimp/gimpzoompreview.c                      |   31 ++++----
 libgimp/gimpzoompreview.h                      |    5 +-
 libgimpbase/gimpmetadata.c                     |    2 +-
 libgimpcolor/gimpcolorprofile.h                |    6 ++-
 libgimpcolor/gimpcolortransform.h              |    6 ++-
 libgimpconfig/gimpcolorconfig.c                |   10 +--
 libgimpconfig/gimpcolorconfig.h                |   25 ++++---
 libgimpmodule/gimpmodule.h                     |   12 +++-
 libgimpmodule/gimpmoduledb.h                   |   12 +++-
 libgimpthumb/gimpthumbnail.h                   |   14 +++-
 libgimpwidgets/gimpbrowser.c                   |   14 ++--
 libgimpwidgets/gimpbrowser.h                   |   11 +++-
 libgimpwidgets/gimpbutton.c                    |   12 +--
 libgimpwidgets/gimpbutton.h                    |   11 +++-
 libgimpwidgets/gimpcellrenderercolor.c         |   12 ++--
 libgimpwidgets/gimpcellrenderercolor.h         |   11 +++-
 libgimpwidgets/gimpcellrenderertoggle.c        |   10 +--
 libgimpwidgets/gimpcellrenderertoggle.h        |   11 +++-
 libgimpwidgets/gimpcolorarea.c                 |   15 ++--
 libgimpwidgets/gimpcolorarea.h                 |   11 +++-
 libgimpwidgets/gimpcolorbutton.c               |   14 ++--
 libgimpwidgets/gimpcolorbutton.h               |   11 +++-
 libgimpwidgets/gimpcolordisplay.c              |   12 +--
 libgimpwidgets/gimpcolordisplay.h              |   54 ++++++++------
 libgimpwidgets/gimpcolordisplaystack.c         |   12 +--
 libgimpwidgets/gimpcolordisplaystack.h         |   11 +++-
 libgimpwidgets/gimpcolorhexentry.c             |   14 ++--
 libgimpwidgets/gimpcolorhexentry.h             |   11 +++-
 libgimpwidgets/gimpcolornotebook.h             |    4 +
 libgimpwidgets/gimpcolorprofilechooserdialog.h |    4 +
 libgimpwidgets/gimpcolorprofilecombobox.c      |   14 ++--
 libgimpwidgets/gimpcolorprofilecombobox.h      |   11 +++-
 libgimpwidgets/gimpcolorprofilestore.c         |   10 ++--
 libgimpwidgets/gimpcolorprofilestore.h         |   11 +++-
 libgimpwidgets/gimpcolorprofileview.h          |    4 +
 libgimpwidgets/gimpcolorscale.c                |   15 ++--
 libgimpwidgets/gimpcolorscale.h                |   11 +++-
 libgimpwidgets/gimpcolorselection.c            |   14 ++--
 libgimpwidgets/gimpcolorselection.h            |   11 +++-
 libgimpwidgets/gimpcolorselector.c             |   15 ++--
 libgimpwidgets/gimpcolorselector.h             |    7 ++-
 libgimpwidgets/gimpcontroller.h                |   16 +++-
 libgimpwidgets/gimpdialog.c                    |   10 ++--
 libgimpwidgets/gimpdialog.h                    |   11 +++-
 libgimpwidgets/gimpenumcombobox.h              |   11 +++-
 libgimpwidgets/gimpenumlabel.c                 |   10 +--
 libgimpwidgets/gimpenumlabel.h                 |   11 +++-
 libgimpwidgets/gimpenumstore.h                 |   12 +++-
 libgimpwidgets/gimpfileentry.h                 |   12 +++-
 libgimpwidgets/gimpframe.h                     |   11 +++-
 libgimpwidgets/gimpintcombobox.c               |   25 +++----
 libgimpwidgets/gimpintcombobox.h               |   12 ++-
 libgimpwidgets/gimpintstore.c                  |   20 +++---
 libgimpwidgets/gimpintstore.h                  |   13 +++-
 libgimpwidgets/gimpmemsizeentry.c              |   17 +----
 libgimpwidgets/gimpmemsizeentry.h              |    9 ++-
 libgimpwidgets/gimpnumberpairentry.c           |   62 +++++++---------
 libgimpwidgets/gimpnumberpairentry.h           |    9 ++-
 libgimpwidgets/gimpoffsetarea.c                |   22 +++----
 libgimpwidgets/gimpoffsetarea.h                |   11 +++-
 libgimpwidgets/gimppageselector.c              |   47 ++++++------
 libgimpwidgets/gimppageselector.h              |   11 ++-
 libgimpwidgets/gimppatheditor.h                |   12 +++-
 libgimpwidgets/gimppickbutton.h                |    4 +
 libgimpwidgets/gimppreview.c                   |   19 ++++--
 libgimpwidgets/gimppreview.h                   |   21 ++++--
 libgimpwidgets/gimppreviewarea.c               |   18 ++----
 libgimpwidgets/gimppreviewarea.h               |   12 +++-
 libgimpwidgets/gimpruler.c                     |   84 ++++++++++------------
 libgimpwidgets/gimpruler.h                     |    9 ++-
 libgimpwidgets/gimpscrolledpreview.c           |   23 +++---
 libgimpwidgets/gimpscrolledpreview.h           |   16 +++--
 libgimpwidgets/gimpsizeentry.h                 |   12 +++-
 libgimpwidgets/gimpstringcombobox.c            |   17 ++---
 libgimpwidgets/gimpstringcombobox.h            |   12 ++-
 libgimpwidgets/gimpunitcombobox.h              |   11 +++-
 libgimpwidgets/gimpunitstore.c                 |   16 +++--
 libgimpwidgets/gimpunitstore.h                 |   19 ++++--
 libgimpwidgets/gimpzoommodel.c                 |   23 +++---
 libgimpwidgets/gimpzoommodel.h                 |   12 ++-
 94 files changed, 927 insertions(+), 670 deletions(-)
---
diff --git a/libgimp/gimpaspectpreview.c b/libgimp/gimpaspectpreview.c
index 61b0650..a449d4e 100644
--- a/libgimp/gimpaspectpreview.c
+++ b/libgimp/gimpaspectpreview.c
@@ -49,21 +49,18 @@ enum
   PROP_DRAWABLE_ID
 };
 
-typedef struct
+struct _GimpAspectPreviewPrivate
 {
   gint32 drawable_ID;
-} GimpAspectPreviewPrivate;
+};
 
 typedef struct
 {
   gboolean  update;
 } PreviewSettings;
 
+#define GET_PRIVATE(obj) (((GimpAspectPreview *) (obj))->priv)
 
-#define GIMP_ASPECT_PREVIEW_GET_PRIVATE(obj) \
-  G_TYPE_INSTANCE_GET_PRIVATE (preview, \
-                               GIMP_TYPE_ASPECT_PREVIEW, \
-                               GimpAspectPreviewPrivate)
 
 static void  gimp_aspect_preview_constructed   (GObject         *object);
 static void  gimp_aspect_preview_dispose       (GObject         *object);
@@ -144,6 +141,10 @@ gimp_aspect_preview_class_init (GimpAspectPreviewClass *klass)
 static void
 gimp_aspect_preview_init (GimpAspectPreview *preview)
 {
+  preview->priv = G_TYPE_INSTANCE_GET_PRIVATE (preview,
+                                               GIMP_TYPE_ASPECT_PREVIEW,
+                                               GimpAspectPreviewPrivate);
+
   g_object_set (GIMP_PREVIEW (preview)->area,
                 "check-size", gimp_check_size (),
                 "check-type", gimp_check_type (),
@@ -197,7 +198,7 @@ gimp_aspect_preview_get_property (GObject    *object,
                                   GParamSpec *pspec)
 {
   GimpAspectPreview        *preview = GIMP_ASPECT_PREVIEW (object);
-  GimpAspectPreviewPrivate *priv    = GIMP_ASPECT_PREVIEW_GET_PRIVATE (preview);
+  GimpAspectPreviewPrivate *priv    = GET_PRIVATE (preview);
 
   switch (property_id)
     {
@@ -241,7 +242,7 @@ gimp_aspect_preview_style_updated (GtkWidget *widget)
 
   if (preview->area)
     {
-      GimpAspectPreviewPrivate *priv = GIMP_ASPECT_PREVIEW_GET_PRIVATE (preview);
+      GimpAspectPreviewPrivate *priv = GET_PRIVATE (preview);
       gint                      width;
       gint                      height;
       gint                      size;
@@ -286,7 +287,7 @@ gimp_aspect_preview_draw_buffer (GimpPreview  *preview,
                                  const guchar *buffer,
                                  gint          rowstride)
 {
-  GimpAspectPreviewPrivate *priv = GIMP_ASPECT_PREVIEW_GET_PRIVATE (preview);
+  GimpAspectPreviewPrivate *priv = GET_PRIVATE (preview);
   gint32                    image_ID;
 
   image_ID = gimp_item_get_image (priv->drawable_ID);
@@ -337,7 +338,7 @@ gimp_aspect_preview_transform (GimpPreview *preview,
                                gint        *dest_x,
                                gint        *dest_y)
 {
-  GimpAspectPreviewPrivate *priv = GIMP_ASPECT_PREVIEW_GET_PRIVATE (preview);
+  GimpAspectPreviewPrivate *priv = GET_PRIVATE (preview);
 
   *dest_x = (gdouble) src_x * preview->width  / gimp_drawable_width  (priv->drawable_ID);
   *dest_y = (gdouble) src_y * preview->height / gimp_drawable_height (priv->drawable_ID);
@@ -350,7 +351,7 @@ gimp_aspect_preview_untransform (GimpPreview *preview,
                                  gint        *dest_x,
                                  gint        *dest_y)
 {
-  GimpAspectPreviewPrivate *priv = GIMP_ASPECT_PREVIEW_GET_PRIVATE (preview);
+  GimpAspectPreviewPrivate *priv = GET_PRIVATE (preview);
 
   *dest_x = (gdouble) src_x * gimp_drawable_width  (priv->drawable_ID) / preview->width;
   *dest_y = (gdouble) src_y * gimp_drawable_height (priv->drawable_ID) / preview->height;
@@ -360,7 +361,7 @@ static void
 gimp_aspect_preview_set_drawable_id (GimpAspectPreview *preview,
                                      gint32             drawable_ID)
 {
-  GimpAspectPreviewPrivate *priv = GIMP_ASPECT_PREVIEW_GET_PRIVATE (preview);
+  GimpAspectPreviewPrivate *priv = GET_PRIVATE (preview);
   gint                      d_width;
   gint                      d_height;
   gint                      width;
diff --git a/libgimp/gimpaspectpreview.h b/libgimp/gimpaspectpreview.h
index c697f05..4ee96cf 100644
--- a/libgimp/gimpaspectpreview.h
+++ b/libgimp/gimpaspectpreview.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_ASPECT_PREVIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ASPECT_PREVIEW, 
GimpAspectPreviewClass))
 
 
-typedef struct _GimpAspectPreviewClass  GimpAspectPreviewClass;
+typedef struct _GimpAspectPreviewPrivate GimpAspectPreviewPrivate;
+typedef struct _GimpAspectPreviewClass   GimpAspectPreviewClass;
 
 struct _GimpAspectPreview
 {
-  GimpPreview   parent_instance;
+  GimpPreview               parent_instance;
+
+  GimpAspectPreviewPrivate *priv;
 };
 
 struct _GimpAspectPreviewClass
@@ -55,6 +58,10 @@ struct _GimpAspectPreviewClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimp/gimpbrushselectbutton.c b/libgimp/gimpbrushselectbutton.c
index 1628ccb..e481df3 100644
--- a/libgimp/gimpbrushselectbutton.c
+++ b/libgimp/gimpbrushselectbutton.c
@@ -47,9 +47,22 @@
 #define CELL_SIZE 20
 
 
-#define GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), 
GIMP_TYPE_BRUSH_SELECT_BUTTON, GimpBrushSelectButtonPrivate))
+enum
+{
+  BRUSH_SET,
+  LAST_SIGNAL
+};
+
+enum
+{
+  PROP_0,
+  PROP_TITLE,
+  PROP_BRUSH_NAME,
+  PROP_BRUSH_OPACITY,
+  PROP_BRUSH_SPACING,
+  PROP_BRUSH_PAINT_MODE
+};
 
-typedef struct _GimpBrushSelectButtonPrivate GimpBrushSelectButtonPrivate;
 
 struct _GimpBrushSelectButtonPrivate
 {
@@ -68,21 +81,7 @@ struct _GimpBrushSelectButtonPrivate
   GtkWidget     *popup;
 };
 
-enum
-{
-  BRUSH_SET,
-  LAST_SIGNAL
-};
-
-enum
-{
-  PROP_0,
-  PROP_TITLE,
-  PROP_BRUSH_NAME,
-  PROP_BRUSH_OPACITY,
-  PROP_BRUSH_SPACING,
-  PROP_BRUSH_PAINT_MODE
-};
+#define GET_PRIVATE(obj) (((GimpBrushSelectButton *) (obj))->priv)
 
 
 /*  local function prototypes  */
@@ -284,7 +283,12 @@ gimp_brush_select_button_init (GimpBrushSelectButton *button)
   gint                          color_data_size;
   guint8                       *color_data;
 
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
+  button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
+                                              GIMP_TYPE_BRUSH_SELECT_BUTTON,
+                                              GimpBrushSelectButtonPrivate);
+
+
+  priv = GET_PRIVATE (button);
 
   priv->brush_name = gimp_context_get_brush ();
   gimp_brush_get_pixels (priv->brush_name,
@@ -374,7 +378,7 @@ gimp_brush_select_button_get_brush (GimpBrushSelectButton *button,
 
   g_return_val_if_fail (GIMP_IS_BRUSH_SELECT_BUTTON (button), NULL);
 
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
+  priv = GET_PRIVATE (button);
 
   if (opacity)
     *opacity = priv->opacity;
@@ -476,9 +480,7 @@ gimp_brush_select_button_set_brush (GimpBrushSelectButton *button,
 static void
 gimp_brush_select_button_finalize (GObject *object)
 {
-  GimpBrushSelectButtonPrivate *priv;
-
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (object);
+  GimpBrushSelectButtonPrivate *priv = GET_PRIVATE (object);
 
   g_free (priv->brush_name);
   priv->brush_name = NULL;
@@ -499,13 +501,11 @@ gimp_brush_select_button_set_property (GObject      *object,
                                        GParamSpec   *pspec)
 {
   GimpBrushSelectButton        *button = GIMP_BRUSH_SELECT_BUTTON (object);
-  GimpBrushSelectButtonPrivate *priv;
+  GimpBrushSelectButtonPrivate *priv   = GET_PRIVATE (button);
   gdouble opacity;
   gint32 spacing;
   gint32 paint_mode;
 
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
-
   switch (property_id)
     {
     case PROP_TITLE:
@@ -544,9 +544,7 @@ gimp_brush_select_button_get_property (GObject    *object,
                                        GParamSpec *pspec)
 {
   GimpBrushSelectButton        *button = GIMP_BRUSH_SELECT_BUTTON (object);
-  GimpBrushSelectButtonPrivate *priv;
-
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
+  GimpBrushSelectButtonPrivate *priv   = GET_PRIVATE (button);
 
   switch (property_id)
     {
@@ -582,14 +580,9 @@ gimp_brush_select_button_callback (const gchar   *name,
                                    gboolean       dialog_closing,
                                    gpointer       data)
 {
-  GimpBrushSelectButton        *button;
-  GimpBrushSelectButtonPrivate *priv;
-  GimpSelectButton             *select_button;
-
-  button = GIMP_BRUSH_SELECT_BUTTON (data);
-
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
-  select_button = GIMP_SELECT_BUTTON (button);
+  GimpBrushSelectButton        *button        = GIMP_BRUSH_SELECT_BUTTON (data);
+  GimpBrushSelectButtonPrivate *priv          = GET_PRIVATE (button);
+  GimpSelectButton             *select_button = GIMP_SELECT_BUTTON (button);
 
   g_free (priv->brush_name);
   g_free (priv->mask_data);
@@ -617,11 +610,8 @@ gimp_brush_select_button_callback (const gchar   *name,
 static void
 gimp_brush_select_button_clicked (GimpBrushSelectButton *button)
 {
-  GimpBrushSelectButtonPrivate *priv;
-  GimpSelectButton             *select_button;
-
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
-  select_button = GIMP_SELECT_BUTTON (button);
+  GimpBrushSelectButtonPrivate *priv          = GET_PRIVATE (button);
+  GimpSelectButton             *select_button = GIMP_SELECT_BUTTON (button);
 
   if (select_button->temp_callback)
     {
@@ -645,9 +635,7 @@ gimp_brush_select_button_clicked (GimpBrushSelectButton *button)
 static void
 gimp_brush_select_preview_resize (GimpBrushSelectButton *button)
 {
-  GimpBrushSelectButtonPrivate *priv;
-
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
+  GimpBrushSelectButtonPrivate *priv = GET_PRIVATE (button);
 
   if (priv->width > 0 && priv->height > 0)
     gimp_brush_select_preview_update (priv->preview,
@@ -661,11 +649,9 @@ gimp_brush_select_preview_events (GtkWidget             *widget,
                                   GdkEvent              *event,
                                   GimpBrushSelectButton *button)
 {
-  GimpBrushSelectButtonPrivate *priv;
+  GimpBrushSelectButtonPrivate *priv = GET_PRIVATE (button);
   GdkEventButton               *bevent;
 
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
-
   if (priv->mask_data)
     {
       switch (event->type)
@@ -773,7 +759,7 @@ gimp_brush_select_button_open_popup (GimpBrushSelectButton *button,
                                      gint                   x,
                                      gint                   y)
 {
-  GimpBrushSelectButtonPrivate *priv;
+  GimpBrushSelectButtonPrivate *priv = GET_PRIVATE (button);
   GtkWidget                    *frame;
   GtkWidget                    *preview;
   GdkMonitor                   *monitor;
@@ -781,8 +767,6 @@ gimp_brush_select_button_open_popup (GimpBrushSelectButton *button,
   gint                          x_org;
   gint                          y_org;
 
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
-
   if (priv->popup)
     gimp_brush_select_button_close_popup (button);
 
@@ -830,9 +814,7 @@ gimp_brush_select_button_open_popup (GimpBrushSelectButton *button,
 static void
 gimp_brush_select_button_close_popup (GimpBrushSelectButton *button)
 {
-  GimpBrushSelectButtonPrivate *priv;
-
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (button);
+  GimpBrushSelectButtonPrivate *priv = GET_PRIVATE (button);
 
   if (priv->popup)
     {
@@ -883,12 +865,10 @@ gimp_brush_select_drag_data_received (GimpBrushSelectButton *button,
 static GtkWidget *
 gimp_brush_select_button_create_inside (GimpBrushSelectButton *brush_button)
 {
+  GimpBrushSelectButtonPrivate *priv = GET_PRIVATE (brush_button);
   GtkWidget                    *hbox;
   GtkWidget                    *frame;
   GtkWidget                    *button;
-  GimpBrushSelectButtonPrivate *priv;
-
-  priv = GIMP_BRUSH_SELECT_BUTTON_GET_PRIVATE (brush_button);
 
   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
 
diff --git a/libgimp/gimpbrushselectbutton.h b/libgimp/gimpbrushselectbutton.h
index 1cad155..2b7286e 100644
--- a/libgimp/gimpbrushselectbutton.h
+++ b/libgimp/gimpbrushselectbutton.h
@@ -40,11 +40,14 @@ G_BEGIN_DECLS
 #define GIMP_BRUSH_SELECT_BUTTON_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_BRUSH_SELECT_BUTTON, GimpBrushSelectButtonClass))
 
 
+typedef struct _GimpBrushSelectButtonPrivate GimpBrushSelectButtonPrivate;
 typedef struct _GimpBrushSelectButtonClass   GimpBrushSelectButtonClass;
 
 struct _GimpBrushSelectButton
 {
-  GimpSelectButton  parent_instance;
+  GimpSelectButton              parent_instance;
+
+  GimpBrushSelectButtonPrivate *priv;
 };
 
 struct _GimpBrushSelectButtonClass
@@ -67,6 +70,10 @@ struct _GimpBrushSelectButtonClass
   void (*_gimp_reserved2) (void);
   void (*_gimp_reserved3) (void);
   void (*_gimp_reserved4) (void);
+  void (*_gimp_reserved5) (void);
+  void (*_gimp_reserved6) (void);
+  void (*_gimp_reserved7) (void);
+  void (*_gimp_reserved8) (void);
 };
 
 
diff --git a/libgimp/gimpdrawablepreview.c b/libgimp/gimpdrawablepreview.c
index 467eced..6381491 100644
--- a/libgimp/gimpdrawablepreview.c
+++ b/libgimp/gimpdrawablepreview.c
@@ -51,21 +51,19 @@ enum
 
 typedef struct
 {
-  gint32 drawable_ID;
-} GimpDrawablePreviewPrivate;
-
-typedef struct
-{
   gint      x;
   gint      y;
   gboolean  update;
 } PreviewSettings;
 
 
-#define GIMP_DRAWABLE_PREVIEW_GET_PRIVATE(obj) \
-  G_TYPE_INSTANCE_GET_PRIVATE (preview, \
-                               GIMP_TYPE_DRAWABLE_PREVIEW, \
-                               GimpDrawablePreviewPrivate)
+struct _GimpDrawablePreviewPrivate
+{
+  gint32 drawable_ID;
+};
+
+#define GET_PRIVATE(obj) (((GimpDrawablePreview *) (obj))->priv)
+
 
 static void  gimp_drawable_preview_constructed   (GObject         *object);
 static void  gimp_drawable_preview_dispose       (GObject         *object);
@@ -142,6 +140,10 @@ gimp_drawable_preview_class_init (GimpDrawablePreviewClass *klass)
 static void
 gimp_drawable_preview_init (GimpDrawablePreview *preview)
 {
+  preview->priv = G_TYPE_INSTANCE_GET_PRIVATE (preview,
+                                               GIMP_TYPE_DRAWABLE_PREVIEW,
+                                               GimpDrawablePreviewPrivate);
+
   g_object_set (GIMP_PREVIEW (preview)->area,
                 "check-size", gimp_check_size (),
                 "check-type", gimp_check_type (),
@@ -259,7 +261,7 @@ gimp_drawable_preview_style_updated (GtkWidget *widget)
 static void
 gimp_drawable_preview_draw_original (GimpPreview *preview)
 {
-  GimpDrawablePreviewPrivate *priv = GIMP_DRAWABLE_PREVIEW_GET_PRIVATE (preview);
+  GimpDrawablePreviewPrivate *priv = GET_PRIVATE (preview);
   guchar                     *buffer;
   gint                        width, height;
   gint                        bpp;
@@ -304,7 +306,7 @@ gimp_drawable_preview_draw_thumb (GimpPreview     *preview,
                                   gint             width,
                                   gint             height)
 {
-  GimpDrawablePreviewPrivate *priv = GIMP_DRAWABLE_PREVIEW_GET_PRIVATE (preview);
+  GimpDrawablePreviewPrivate *priv = GET_PRIVATE (preview);
 
   if (priv->drawable_ID > 0)
     _gimp_drawable_preview_area_draw_thumb (area, priv->drawable_ID,
@@ -398,7 +400,7 @@ gimp_drawable_preview_draw_area (GimpDrawablePreview *preview,
                                  const guchar        *buf,
                                  gint                 rowstride)
 {
-  GimpDrawablePreviewPrivate *priv         = GIMP_DRAWABLE_PREVIEW_GET_PRIVATE (preview);
+  GimpDrawablePreviewPrivate *priv         = GET_PRIVATE (preview);
   GimpPreview                *gimp_preview = GIMP_PREVIEW (preview);
   gint32                      image_ID;
 
@@ -510,7 +512,7 @@ gimp_drawable_preview_set_drawable_id (GimpDrawablePreview *drawable_preview,
                                        gint32               drawable_ID)
 {
   GimpPreview                *preview = GIMP_PREVIEW (drawable_preview);
-  GimpDrawablePreviewPrivate *priv    = GIMP_DRAWABLE_PREVIEW_GET_PRIVATE (preview);
+  GimpDrawablePreviewPrivate *priv    = GET_PRIVATE (preview);
   gint                        x1, y1, x2, y2;
 
   g_return_if_fail (priv->drawable_ID < 1);
@@ -607,7 +609,7 @@ gimp_drawable_preview_get_drawable_id (GimpDrawablePreview *preview)
 {
   g_return_val_if_fail (GIMP_IS_DRAWABLE_PREVIEW (preview), -1);
 
-  return GIMP_DRAWABLE_PREVIEW_GET_PRIVATE (preview)->drawable_ID;
+  return GET_PRIVATE (preview)->drawable_ID;
 }
 
 /**
@@ -626,7 +628,7 @@ gimp_drawable_preview_draw_region (GimpDrawablePreview *preview,
   g_return_if_fail (GIMP_IS_DRAWABLE_PREVIEW (preview));
   g_return_if_fail (region != NULL);
 
-  priv = GIMP_DRAWABLE_PREVIEW_GET_PRIVATE (preview);
+  priv = GET_PRIVATE (preview);
 
   g_return_if_fail (priv->drawable_ID > 0);
 
diff --git a/libgimp/gimpdrawablepreview.h b/libgimp/gimpdrawablepreview.h
index ad9c3b1..8a84411 100644
--- a/libgimp/gimpdrawablepreview.h
+++ b/libgimp/gimpdrawablepreview.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_DRAWABLE_PREVIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_DRAWABLE_PREVIEW, 
GimpDrawablePreviewClass))
 
 
-typedef struct _GimpDrawablePreviewClass  GimpDrawablePreviewClass;
+typedef struct _GimpDrawablePreviewPrivate GimpDrawablePreviewPrivate;
+typedef struct _GimpDrawablePreviewClass   GimpDrawablePreviewClass;
 
 struct _GimpDrawablePreview
 {
-  GimpScrolledPreview  parent_instance;
+  GimpScrolledPreview         parent_instance;
+
+  GimpDrawablePreviewPrivate *priv;
 };
 
 struct _GimpDrawablePreviewClass
@@ -55,6 +58,10 @@ struct _GimpDrawablePreviewClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimp/gimpfontselectbutton.c b/libgimp/gimpfontselectbutton.c
index 2bb79f3..287efea 100644
--- a/libgimp/gimpfontselectbutton.c
+++ b/libgimp/gimpfontselectbutton.c
@@ -44,20 +44,6 @@
  **/
 
 
-#define GIMP_FONT_SELECT_BUTTON_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), 
GIMP_TYPE_FONT_SELECT_BUTTON, GimpFontSelectButtonPrivate))
-
-typedef struct _GimpFontSelectButtonPrivate GimpFontSelectButtonPrivate;
-
-struct _GimpFontSelectButtonPrivate
-{
-  gchar       *title;
-
-  gchar       *font_name;      /* local copy */
-
-  GtkWidget   *inside;
-  GtkWidget   *label;
-};
-
 enum
 {
   FONT_SET,
@@ -72,6 +58,19 @@ enum
 };
 
 
+struct _GimpFontSelectButtonPrivate
+{
+  gchar       *title;
+
+  gchar       *font_name;      /* local copy */
+
+  GtkWidget   *inside;
+  GtkWidget   *label;
+};
+
+#define GET_PRIVATE(obj) (((GimpFontSelectButton *) (obj))->priv)
+
+
 /*  local function prototypes  */
 
 static void   gimp_font_select_button_finalize     (GObject      *object);
@@ -184,7 +183,11 @@ gimp_font_select_button_init (GimpFontSelectButton *button)
 {
   GimpFontSelectButtonPrivate *priv;
 
-  priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
+  button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
+                                              GIMP_TYPE_FONT_SELECT_BUTTON,
+                                              GimpFontSelectButtonPrivate);
+
+  priv = GET_PRIVATE (button);
 
   priv->font_name = NULL;
 
@@ -237,12 +240,9 @@ gimp_font_select_button_new (const gchar *title,
 const gchar *
 gimp_font_select_button_get_font (GimpFontSelectButton *button)
 {
-  GimpFontSelectButtonPrivate *priv;
-
   g_return_val_if_fail (GIMP_IS_FONT_SELECT_BUTTON (button), NULL);
 
-  priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
-  return priv->font_name;
+  return GET_PRIVATE (button)->font_name;
 }
 
 /**
@@ -276,9 +276,7 @@ gimp_font_select_button_set_font (GimpFontSelectButton *button,
 static void
 gimp_font_select_button_finalize (GObject *object)
 {
-  GimpFontSelectButtonPrivate *priv;
-
-  priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (object);
+  GimpFontSelectButtonPrivate *priv = GET_PRIVATE (object);
 
   g_free (priv->font_name);
   priv->font_name = NULL;
@@ -296,9 +294,7 @@ gimp_font_select_button_set_property (GObject      *object,
                                       GParamSpec   *pspec)
 {
   GimpFontSelectButton        *button = GIMP_FONT_SELECT_BUTTON (object);
-  GimpFontSelectButtonPrivate *priv;
-
-  priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
+  GimpFontSelectButtonPrivate *priv   = GET_PRIVATE (button);
 
   switch (property_id)
     {
@@ -309,6 +305,7 @@ gimp_font_select_button_set_property (GObject      *object,
       gimp_font_select_button_set_font (button,
                                         g_value_get_string (value));
       break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -322,9 +319,7 @@ gimp_font_select_button_get_property (GObject    *object,
                                       GParamSpec *pspec)
 {
   GimpFontSelectButton        *button = GIMP_FONT_SELECT_BUTTON (object);
-  GimpFontSelectButtonPrivate *priv;
-
-  priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
+  GimpFontSelectButtonPrivate *priv   = GET_PRIVATE (button);
 
   switch (property_id)
     {
@@ -334,6 +329,7 @@ gimp_font_select_button_get_property (GObject    *object,
     case PROP_FONT_NAME:
       g_value_set_string (value, priv->font_name);
       break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -345,14 +341,9 @@ gimp_font_select_button_callback (const gchar *font_name,
                                   gboolean     dialog_closing,
                                   gpointer     user_data)
 {
-  GimpFontSelectButton        *button;
-  GimpFontSelectButtonPrivate *priv;
-  GimpSelectButton            *select_button;
-
-  button = GIMP_FONT_SELECT_BUTTON (user_data);
-
-  priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
-  select_button = GIMP_SELECT_BUTTON (button);
+  GimpFontSelectButton        *button        = GIMP_FONT_SELECT_BUTTON (user_data);
+  GimpFontSelectButtonPrivate *priv          = GET_PRIVATE (button);
+  GimpSelectButton            *select_button = GIMP_SELECT_BUTTON (button);
 
   g_free (priv->font_name);
   priv->font_name = g_strdup (font_name);
@@ -370,11 +361,8 @@ gimp_font_select_button_callback (const gchar *font_name,
 static void
 gimp_font_select_button_clicked (GimpFontSelectButton *button)
 {
-  GimpFontSelectButtonPrivate *priv;
-  GimpSelectButton            *select_button;
-
-  priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (button);
-  select_button = GIMP_SELECT_BUTTON (button);
+  GimpFontSelectButtonPrivate *priv          = GET_PRIVATE (button);
+  GimpSelectButton            *select_button = GIMP_SELECT_BUTTON (button);
 
   if (select_button->temp_callback)
     {
@@ -433,12 +421,10 @@ gimp_font_select_drag_data_received (GimpFontSelectButton *button,
 static GtkWidget *
 gimp_font_select_button_create_inside (GimpFontSelectButton *font_button)
 {
+  GimpFontSelectButtonPrivate *priv = GET_PRIVATE (font_button);
   GtkWidget                   *button;
   GtkWidget                   *hbox;
   GtkWidget                   *image;
-  GimpFontSelectButtonPrivate *priv;
-
-  priv = GIMP_FONT_SELECT_BUTTON_GET_PRIVATE (font_button);
 
   button = gtk_button_new ();
 
diff --git a/libgimp/gimpfontselectbutton.h b/libgimp/gimpfontselectbutton.h
index f9dc241..9a700f7 100644
--- a/libgimp/gimpfontselectbutton.h
+++ b/libgimp/gimpfontselectbutton.h
@@ -40,11 +40,14 @@ G_BEGIN_DECLS
 #define GIMP_FONT_SELECT_BUTTON_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_FONT_SELECT_BUTTON, GimpFontSelectButtonClass))
 
 
-typedef struct _GimpFontSelectButtonClass  GimpFontSelectButtonClass;
+typedef struct _GimpFontSelectButtonPrivate GimpFontSelectButtonPrivate;
+typedef struct _GimpFontSelectButtonClass   GimpFontSelectButtonClass;
 
 struct _GimpFontSelectButton
 {
-  GimpSelectButton  parent_instance;
+  GimpSelectButton             parent_instance;
+
+  GimpFontSelectButtonPrivate *priv;
 };
 
 struct _GimpFontSelectButtonClass
@@ -61,6 +64,10 @@ struct _GimpFontSelectButtonClass
   void (*_gimp_reserved2) (void);
   void (*_gimp_reserved3) (void);
   void (*_gimp_reserved4) (void);
+  void (*_gimp_reserved5) (void);
+  void (*_gimp_reserved6) (void);
+  void (*_gimp_reserved7) (void);
+  void (*_gimp_reserved8) (void);
 };
 
 
diff --git a/libgimp/gimpgradientselectbutton.c b/libgimp/gimpgradientselectbutton.c
index b00dad7..0b90886 100644
--- a/libgimp/gimpgradientselectbutton.c
+++ b/libgimp/gimpgradientselectbutton.c
@@ -47,10 +47,19 @@
 #define CELL_HEIGHT 18
 #define CELL_WIDTH  84
 
+enum
+{
+  GRADIENT_SET,
+  LAST_SIGNAL
+};
 
-#define GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), 
GIMP_TYPE_GRADIENT_SELECT_BUTTON, GimpGradientSelectButtonPrivate))
+enum
+{
+  PROP_0,
+  PROP_TITLE,
+  PROP_GRADIENT_NAME
+};
 
-typedef struct _GimpGradientSelectButtonPrivate GimpGradientSelectButtonPrivate;
 
 struct _GimpGradientSelectButtonPrivate
 {
@@ -66,18 +75,7 @@ struct _GimpGradientSelectButtonPrivate
   GtkWidget *preview;
 };
 
-enum
-{
-  GRADIENT_SET,
-  LAST_SIGNAL
-};
-
-enum
-{
-  PROP_0,
-  PROP_TITLE,
-  PROP_GRADIENT_NAME
-};
+#define GET_PRIVATE(obj) (((GimpGradientSelectButton *) (obj))->priv)
 
 
 /*  local function prototypes  */
@@ -206,7 +204,11 @@ gimp_gradient_select_button_init (GimpGradientSelectButton *button)
 {
   GimpGradientSelectButtonPrivate *priv;
 
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
+  button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
+                                              GIMP_TYPE_GRADIENT_SELECT_BUTTON,
+                                              GimpGradientSelectButtonPrivate);
+
+  priv = GET_PRIVATE (button);
 
   priv->gradient_name = gimp_context_get_gradient ();
   priv->sample_size = CELL_WIDTH;
@@ -261,12 +263,9 @@ gimp_gradient_select_button_new (const gchar *title,
 const gchar *
 gimp_gradient_select_button_get_gradient (GimpGradientSelectButton *button)
 {
-  GimpGradientSelectButtonPrivate *priv;
-
   g_return_val_if_fail (GIMP_IS_GRADIENT_SELECT_BUTTON (button), NULL);
 
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
-  return priv->gradient_name;
+  return GET_PRIVATE (button)->gradient_name;
 }
 
 /**
@@ -287,7 +286,7 @@ gimp_gradient_select_button_set_gradient (GimpGradientSelectButton *button,
 
   g_return_if_fail (GIMP_IS_GRADIENT_SELECT_BUTTON (button));
 
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
+  priv          = GET_PRIVATE (button);
   select_button = GIMP_SELECT_BUTTON (button);
 
   if (select_button->temp_callback)
@@ -328,9 +327,7 @@ gimp_gradient_select_button_set_gradient (GimpGradientSelectButton *button,
 static void
 gimp_gradient_select_button_finalize (GObject *object)
 {
-  GimpGradientSelectButtonPrivate *priv;
-
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (object);
+  GimpGradientSelectButtonPrivate *priv = GET_PRIVATE (object);
 
   g_free (priv->gradient_name);
   priv->gradient_name = NULL;
@@ -350,11 +347,8 @@ gimp_gradient_select_button_set_property (GObject      *object,
                                           const GValue *value,
                                           GParamSpec   *pspec)
 {
-  GimpGradientSelectButton        *button;
-  GimpGradientSelectButtonPrivate *priv;
-
-  button = GIMP_GRADIENT_SELECT_BUTTON (object);
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
+  GimpGradientSelectButton        *button = GIMP_GRADIENT_SELECT_BUTTON (object);
+  GimpGradientSelectButtonPrivate *priv   = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -365,6 +359,7 @@ gimp_gradient_select_button_set_property (GObject      *object,
       gimp_gradient_select_button_set_gradient (button,
                                                 g_value_get_string (value));
       break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -377,11 +372,7 @@ gimp_gradient_select_button_get_property (GObject    *object,
                                           GValue     *value,
                                           GParamSpec *pspec)
 {
-  GimpGradientSelectButton        *button;
-  GimpGradientSelectButtonPrivate *priv;
-
-  button = GIMP_GRADIENT_SELECT_BUTTON (object);
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
+  GimpGradientSelectButtonPrivate *priv = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -391,6 +382,7 @@ gimp_gradient_select_button_get_property (GObject    *object,
     case PROP_GRADIENT_NAME:
       g_value_set_string (value, priv->gradient_name);
       break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -404,14 +396,9 @@ gimp_gradient_select_button_callback (const gchar   *gradient_name,
                                       gboolean       dialog_closing,
                                       gpointer       user_data)
 {
-  GimpGradientSelectButton        *button;
-  GimpGradientSelectButtonPrivate *priv;
-  GimpSelectButton                *select_button;
-
-  button = GIMP_GRADIENT_SELECT_BUTTON (user_data);
-
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
-  select_button = GIMP_SELECT_BUTTON (button);
+  GimpGradientSelectButton        *button        = user_data;
+  GimpGradientSelectButtonPrivate *priv          = GET_PRIVATE (button);
+  GimpSelectButton                *select_button = GIMP_SELECT_BUTTON (button);
 
   g_free (priv->gradient_name);
   g_free (priv->gradient_data);
@@ -433,11 +420,8 @@ gimp_gradient_select_button_callback (const gchar   *gradient_name,
 static void
 gimp_gradient_select_button_clicked (GimpGradientSelectButton *button)
 {
-  GimpGradientSelectButtonPrivate *priv;
-  GimpSelectButton                *select_button;
-
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
-  select_button = GIMP_SELECT_BUTTON (button);
+  GimpGradientSelectButtonPrivate *priv          = GET_PRIVATE (button);
+  GimpSelectButton                *select_button = GIMP_SELECT_BUTTON (button);
 
   if (select_button->temp_callback)
     {
@@ -460,11 +444,9 @@ gimp_gradient_select_preview_size_allocate (GtkWidget                *widget,
                                             GtkAllocation            *allocation,
                                             GimpGradientSelectButton *button)
 {
+  GimpGradientSelectButtonPrivate *priv = GET_PRIVATE (button);
   gdouble                         *samples;
   gint                             n_samples;
-  GimpGradientSelectButtonPrivate *priv;
-
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
 
   if (gimp_gradient_get_uniform_samples (priv->gradient_name,
                                          allocation->width,
@@ -485,7 +467,7 @@ gimp_gradient_select_preview_draw (GtkWidget                *widget,
                                    cairo_t                  *cr,
                                    GimpGradientSelectButton *button)
 {
-  GimpGradientSelectButtonPrivate *priv;
+  GimpGradientSelectButtonPrivate *priv = GET_PRIVATE (button);
   GtkAllocation                    allocation;
   cairo_pattern_t                 *pattern;
   cairo_surface_t                 *surface;
@@ -494,8 +476,6 @@ gimp_gradient_select_preview_draw (GtkWidget                *widget,
   gint                             width;
   gint                             x;
 
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (button);
-
   src = priv->gradient_data;
   if (! src)
     return FALSE;
@@ -583,10 +563,8 @@ gimp_gradient_select_drag_data_received (GimpGradientSelectButton *button,
 static GtkWidget *
 gimp_gradient_select_button_create_inside (GimpGradientSelectButton *gradient_button)
 {
+  GimpGradientSelectButtonPrivate *priv = GET_PRIVATE (gradient_button);
   GtkWidget                       *button;
-  GimpGradientSelectButtonPrivate *priv;
-
-  priv = GIMP_GRADIENT_SELECT_BUTTON_GET_PRIVATE (gradient_button);
 
   button = gtk_button_new ();
 
diff --git a/libgimp/gimpgradientselectbutton.h b/libgimp/gimpgradientselectbutton.h
index c268acc..dd8b9db 100644
--- a/libgimp/gimpgradientselectbutton.h
+++ b/libgimp/gimpgradientselectbutton.h
@@ -40,11 +40,14 @@ G_BEGIN_DECLS
 #define GIMP_GRADIENT_SELECT_BUTTON_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_GRADIENT_SELECT_BUTTON, GimpGradientSelectButtonClass))
 
 
+typedef struct _GimpGradientSelectButtonPrivate GimpGradientSelectButtonPrivate;
 typedef struct _GimpGradientSelectButtonClass   GimpGradientSelectButtonClass;
 
 struct _GimpGradientSelectButton
 {
-  GimpSelectButton  parent_instance;
+  GimpSelectButton                 parent_instance;
+
+  GimpGradientSelectButtonPrivate *priv;
 };
 
 struct _GimpGradientSelectButtonClass
@@ -63,6 +66,10 @@ struct _GimpGradientSelectButtonClass
   void (*_gimp_reserved2) (void);
   void (*_gimp_reserved3) (void);
   void (*_gimp_reserved4) (void);
+  void (*_gimp_reserved5) (void);
+  void (*_gimp_reserved6) (void);
+  void (*_gimp_reserved7) (void);
+  void (*_gimp_reserved8) (void);
 };
 
 
diff --git a/libgimp/gimpprocbrowserdialog.h b/libgimp/gimpprocbrowserdialog.h
index 508aefc..75d3a89 100644
--- a/libgimp/gimpprocbrowserdialog.h
+++ b/libgimp/gimpprocbrowserdialog.h
@@ -39,12 +39,16 @@ G_BEGIN_DECLS
 #define GIMP_PROC_BROWSER_DIALOG_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_PROC_BROWSER_DIALOG, GimpProcBrowserDialogClass))
 
 
-typedef struct _GimpProcBrowserDialogClass GimpProcBrowserDialogClass;
+typedef struct _GimpProcBrowserDialogPrivate GimpProcBrowserDialogPrivate;
+typedef struct _GimpProcBrowserDialogClass   GimpProcBrowserDialogClass;
 
 struct _GimpProcBrowserDialog
 {
-  GimpDialog    parent_instance;
+  GimpDialog                    parent_instance;
 
+  GimpProcBrowserDialogPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GtkWidget    *browser;
 
   GtkListStore *store;
@@ -63,6 +67,10 @@ struct _GimpProcBrowserDialogClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimp/gimpselectbutton.c b/libgimp/gimpselectbutton.c
index 72c83c5..dfc906b 100644
--- a/libgimp/gimpselectbutton.c
+++ b/libgimp/gimpselectbutton.c
@@ -46,6 +46,7 @@ static void   gimp_select_button_dispose (GObject *object);
 
 G_DEFINE_TYPE (GimpSelectButton, gimp_select_button, GTK_TYPE_BOX)
 
+
 static void
 gimp_select_button_class_init (GimpSelectButtonClass *klass)
 {
diff --git a/libgimp/gimpselectbutton.h b/libgimp/gimpselectbutton.h
index 399f4b5..1ca4ab6 100644
--- a/libgimp/gimpselectbutton.h
+++ b/libgimp/gimpselectbutton.h
@@ -38,12 +38,16 @@ G_BEGIN_DECLS
 #define GIMP_SELECT_BUTTON_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_SELECT_BUTTON, 
GimpSelectButtonClass))
 
 
+typedef struct _GimpSelectButtonPrivate GimpSelectButtonPrivate;
 typedef struct _GimpSelectButtonClass   GimpSelectButtonClass;
 
 struct _GimpSelectButton
 {
-  GtkBox       parent_instance;
+  GtkBox                   parent_instance;
 
+  GimpSelectButtonPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   const gchar *temp_callback;
 };
 
@@ -63,6 +67,7 @@ struct _GimpSelectButtonClass
   void (*_gimp_reserved5) (void);
   void (*_gimp_reserved6) (void);
   void (*_gimp_reserved7) (void);
+  void (*_gimp_reserved8) (void);
 };
 
 
diff --git a/libgimp/gimptilebackendplugin.h b/libgimp/gimptilebackendplugin.h
index 98f1f27..8f7329f 100644
--- a/libgimp/gimptilebackendplugin.h
+++ b/libgimp/gimptilebackendplugin.h
@@ -39,7 +39,7 @@ typedef struct _GimpTileBackendPluginPrivate GimpTileBackendPluginPrivate;
 
 struct _GimpTileBackendPlugin
 {
-  GeglTileBackend  parent_instance;
+  GeglTileBackend               parent_instance;
 
   GimpTileBackendPluginPrivate *priv;
 };
diff --git a/libgimp/gimpzoompreview.c b/libgimp/gimpzoompreview.c
index 8724334..02f7932 100644
--- a/libgimp/gimpzoompreview.c
+++ b/libgimp/gimpzoompreview.c
@@ -50,6 +50,11 @@ enum
   PROP_MODEL
 };
 
+typedef struct
+{
+  gboolean  update;
+} PreviewSettings;
+
 
 struct _GimpZoomPreviewPrivate
 {
@@ -58,14 +63,8 @@ struct _GimpZoomPreviewPrivate
   GdkRectangle   extents;
 };
 
-typedef struct
-{
-  gboolean  update;
-} PreviewSettings;
-
+#define GET_PRIVATE(obj) (((GimpZoomPreview *) (obj))->priv)
 
-#define GIMP_ZOOM_PREVIEW_GET_PRIVATE(obj) \
-  ((GimpZoomPreviewPrivate *) ((GimpZoomPreview *) (obj))->priv)
 
 static void     gimp_zoom_preview_constructed     (GObject         *object);
 static void     gimp_zoom_preview_finalize        (GObject         *object);
@@ -209,7 +208,7 @@ gimp_zoom_preview_init (GimpZoomPreview *preview)
 static void
 gimp_zoom_preview_constructed (GObject *object)
 {
-  GimpZoomPreviewPrivate *priv = GIMP_ZOOM_PREVIEW_GET_PRIVATE (object);
+  GimpZoomPreviewPrivate *priv = GET_PRIVATE (object);
   gchar                  *data_name;
   PreviewSettings         settings;
 
@@ -243,7 +242,7 @@ gimp_zoom_preview_constructed (GObject *object)
 static void
 gimp_zoom_preview_finalize (GObject *object)
 {
-  GimpZoomPreviewPrivate *priv = GIMP_ZOOM_PREVIEW_GET_PRIVATE (object);
+  GimpZoomPreviewPrivate *priv = GET_PRIVATE (object);
 
   g_clear_object (&priv->model);
 
@@ -385,7 +384,7 @@ gimp_zoom_preview_style_updated (GtkWidget *widget)
 
   if (preview->area)
     {
-      GimpZoomPreviewPrivate *priv = GIMP_ZOOM_PREVIEW_GET_PRIVATE (preview);
+      GimpZoomPreviewPrivate *priv = GET_PRIVATE (preview);
       gint                    size;
       gint                    width, height;
       gint                    x1, y1;
@@ -428,7 +427,7 @@ gimp_zoom_preview_scroll_event (GtkWidget       *widget,
 {
   if (event->state & GDK_CONTROL_MASK)
     {
-      GimpZoomPreviewPrivate *priv = GIMP_ZOOM_PREVIEW_GET_PRIVATE (preview);
+      GimpZoomPreviewPrivate *priv = GET_PRIVATE (preview);
 
       gimp_scrolled_preview_freeze (GIMP_SCROLLED_PREVIEW (preview));
 
@@ -667,7 +666,7 @@ static void
 gimp_zoom_preview_set_model (GimpZoomPreview *preview,
                              GimpZoomModel   *model)
 {
-  GimpZoomPreviewPrivate *priv = GIMP_ZOOM_PREVIEW_GET_PRIVATE (preview);
+  GimpZoomPreviewPrivate *priv = GET_PRIVATE (preview);
   GtkWidget              *button_bar;
   GtkWidget              *button;
   GtkWidget              *box;
@@ -710,7 +709,7 @@ gimp_zoom_preview_get_source_area (GimpPreview *preview,
                                    gint        *w,
                                    gint        *h)
 {
-  GimpZoomPreviewPrivate *priv = GIMP_ZOOM_PREVIEW_GET_PRIVATE (preview);
+  GimpZoomPreviewPrivate *priv = GET_PRIVATE (preview);
   gdouble                 zoom = gimp_zoom_model_get_factor (priv->model);
 
   gimp_zoom_preview_untransform (preview, 0, 0, x, y);
@@ -789,7 +788,7 @@ gimp_zoom_preview_get_drawable_id (GimpZoomPreview *preview)
 {
   g_return_val_if_fail (GIMP_IS_ZOOM_PREVIEW (preview), -1);
 
-  return GIMP_ZOOM_PREVIEW_GET_PRIVATE (preview)->drawable_ID;
+  return GET_PRIVATE (preview)->drawable_ID;
 }
 
 /**
@@ -807,7 +806,7 @@ gimp_zoom_preview_get_model (GimpZoomPreview *preview)
 {
   g_return_val_if_fail (GIMP_IS_ZOOM_PREVIEW (preview), NULL);
 
-  return GIMP_ZOOM_PREVIEW_GET_PRIVATE (preview)->model;
+  return GET_PRIVATE (preview)->model;
 }
 
 /**
@@ -827,7 +826,7 @@ gimp_zoom_preview_get_factor (GimpZoomPreview *preview)
 
   g_return_val_if_fail (GIMP_IS_ZOOM_PREVIEW (preview), 1.0);
 
-  priv = GIMP_ZOOM_PREVIEW_GET_PRIVATE (preview);
+  priv = GET_PRIVATE (preview);
 
   return priv->model ? gimp_zoom_model_get_factor (priv->model) : 1.0;
 }
diff --git a/libgimp/gimpzoompreview.h b/libgimp/gimpzoompreview.h
index 89b91a3..3e6e1be 100644
--- a/libgimp/gimpzoompreview.h
+++ b/libgimp/gimpzoompreview.h
@@ -47,7 +47,6 @@ struct _GimpZoomPreview
 {
   GimpScrolledPreview     parent_instance;
 
-  /*< private >*/
   GimpZoomPreviewPrivate *priv;
 };
 
@@ -60,6 +59,10 @@ struct _GimpZoomPreviewClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpbase/gimpmetadata.c b/libgimpbase/gimpmetadata.c
index 88d7121..78fc313 100644
--- a/libgimpbase/gimpmetadata.c
+++ b/libgimpbase/gimpmetadata.c
@@ -38,8 +38,8 @@
 
 #include "libgimp/libgimp-intl.h"
 
-typedef struct _GimpMetadataClass   GimpMetadataClass;
 typedef struct _GimpMetadataPrivate GimpMetadataPrivate;
+typedef struct _GimpMetadataClass   GimpMetadataClass;
 
 struct _GimpMetadata
 {
diff --git a/libgimpcolor/gimpcolorprofile.h b/libgimpcolor/gimpcolorprofile.h
index d7f43f4..9619b57 100644
--- a/libgimpcolor/gimpcolorprofile.h
+++ b/libgimpcolor/gimpcolorprofile.h
@@ -40,8 +40,8 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_PROFILE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_PROFILE, 
GimpColorProfileClass))
 
 
-typedef struct _GimpColorProfileClass   GimpColorProfileClass;
 typedef struct _GimpColorProfilePrivate GimpColorProfilePrivate;
+typedef struct _GimpColorProfileClass   GimpColorProfileClass;
 
 struct _GimpColorProfile
 {
@@ -59,6 +59,10 @@ struct _GimpColorProfileClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpcolor/gimpcolortransform.h b/libgimpcolor/gimpcolortransform.h
index 7906017..f52dc50 100644
--- a/libgimpcolor/gimpcolortransform.h
+++ b/libgimpcolor/gimpcolortransform.h
@@ -48,8 +48,8 @@ typedef enum
 #define GIMP_COLOR_TRANSFORM_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_TRANSFORM, 
GimpColorTransformClass))
 
 
-typedef struct _GimpColorTransformClass   GimpColorTransformClass;
 typedef struct _GimpColorTransformPrivate GimpColorTransformPrivate;
+typedef struct _GimpColorTransformClass   GimpColorTransformClass;
 
 struct _GimpColorTransform
 {
@@ -71,6 +71,10 @@ struct _GimpColorTransformClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpconfig/gimpcolorconfig.c b/libgimpconfig/gimpcolorconfig.c
index c9b7d9d..ef7ee63 100644
--- a/libgimpconfig/gimpcolorconfig.c
+++ b/libgimpconfig/gimpcolorconfig.c
@@ -132,18 +132,13 @@ enum
 };
 
 
-typedef struct _GimpColorConfigPrivate GimpColorConfigPrivate;
-
 struct _GimpColorConfigPrivate
 {
   gboolean display_optimize;
   gboolean simulation_optimize;
 };
 
-#define GET_PRIVATE(obj) \
-        G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                     GIMP_TYPE_COLOR_CONFIG, \
-                                     GimpColorConfigPrivate)
+#define GET_PRIVATE(obj) (((GimpColorConfig *) (obj))->priv)
 
 
 static void  gimp_color_config_finalize               (GObject          *object);
@@ -308,6 +303,9 @@ gimp_color_config_class_init (GimpColorConfigClass *klass)
 static void
 gimp_color_config_init (GimpColorConfig *config)
 {
+  config->priv = G_TYPE_INSTANCE_GET_PRIVATE (config,
+                                              GIMP_TYPE_COLOR_CONFIG,
+                                              GimpColorConfigPrivate);
 }
 
 static void
diff --git a/libgimpconfig/gimpcolorconfig.h b/libgimpconfig/gimpcolorconfig.h
index d716210..7ace403 100644
--- a/libgimpconfig/gimpcolorconfig.h
+++ b/libgimpconfig/gimpcolorconfig.h
@@ -34,13 +34,16 @@
 #define GIMP_IS_COLOR_CONFIG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_COLOR_CONFIG))
 
 
-typedef struct _GimpColorConfigClass GimpColorConfigClass;
+typedef struct _GimpColorConfigPrivate GimpColorConfigPrivate;
+typedef struct _GimpColorConfigClass   GimpColorConfigClass;
 
 struct _GimpColorConfig
 {
-  GObject                     parent_instance;
+  GObject                 parent_instance;
 
-  /*< public >*/
+  GimpColorConfigPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GimpColorManagementMode     mode;
   gchar                      *rgb_profile;
   gchar                      *cmyk_profile;
@@ -57,12 +60,15 @@ struct _GimpColorConfig
   gboolean                    simulation_use_black_point_compensation;
 
   gchar                      *gray_profile;
+};
+
+struct _GimpColorConfigClass
+{
+  GObjectClass  parent_class;
 
-  /*< private >*/
-  /* Padding for future expansion */
-#if (GLIB_SIZEOF_VOID_P == 8)
+  void (* _gimp_reserved1) (void);
+  void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
-#endif
   void (* _gimp_reserved4) (void);
   void (* _gimp_reserved5) (void);
   void (* _gimp_reserved6) (void);
@@ -70,11 +76,6 @@ struct _GimpColorConfig
   void (* _gimp_reserved8) (void);
 };
 
-struct _GimpColorConfigClass
-{
-  GObjectClass                parent_class;
-};
-
 
 GType              gimp_color_config_get_type                     (void) G_GNUC_CONST;
 
diff --git a/libgimpmodule/gimpmodule.h b/libgimpmodule/gimpmodule.h
index e2d97be..419c49e 100644
--- a/libgimpmodule/gimpmodule.h
+++ b/libgimpmodule/gimpmodule.h
@@ -151,7 +151,8 @@ G_MODULE_EXPORT gboolean               gimp_module_register (GTypeModule *module
 #define GIMP_MODULE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_MODULE, GimpModuleClass))
 
 
-typedef struct _GimpModuleClass GimpModuleClass;
+typedef struct _GimpModulePrivate GimpModulePrivate;
+typedef struct _GimpModuleClass   GimpModuleClass;
 
 /**
  * GimpModule:
@@ -171,8 +172,11 @@ typedef struct _GimpModuleClass GimpModuleClass;
  **/
 struct _GimpModule
 {
-  GTypeModule      parent_instance;
+  GTypeModule        parent_instance;
 
+  GimpModulePrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   /*< public >*/
   gchar           *filename;     /* path to the module                       */
   gboolean         verbose;      /* verbose error reporting                  */
@@ -204,6 +208,10 @@ struct _GimpModuleClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpmodule/gimpmoduledb.h b/libgimpmodule/gimpmoduledb.h
index ac9dc8a..959427f 100644
--- a/libgimpmodule/gimpmoduledb.h
+++ b/libgimpmodule/gimpmoduledb.h
@@ -34,12 +34,16 @@ G_BEGIN_DECLS
 #define GIMP_MODULE_DB_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_MODULE_DB, 
GimpModuleDBClass))
 
 
-typedef struct _GimpModuleDBClass GimpModuleDBClass;
+typedef struct _GimpModuleDBPrivate GimpModuleDBPrivate;
+typedef struct _GimpModuleDBClass   GimpModuleDBClass;
 
 struct _GimpModuleDB
 {
-  GObject   parent_instance;
+  GObject              parent_instance;
 
+  GimpModuleDBPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   /*< private >*/
   GList    *modules;
 
@@ -63,6 +67,10 @@ struct _GimpModuleDBClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpthumb/gimpthumbnail.h b/libgimpthumb/gimpthumbnail.h
index c3fecc0..67e9a65 100644
--- a/libgimpthumb/gimpthumbnail.h
+++ b/libgimpthumb/gimpthumbnail.h
@@ -40,7 +40,8 @@ G_BEGIN_DECLS
 #define GIMP_THUMBNAIL_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_THUMBNAIL, 
GimpThumbnailClass))
 
 
-typedef struct _GimpThumbnailClass GimpThumbnailClass;
+typedef struct _GimpThumbnailPrivate GimpThumbnailPrivate;
+typedef struct _GimpThumbnailClass   GimpThumbnailClass;
 
 /**
  * GimpThumbnail:
@@ -50,8 +51,11 @@ typedef struct _GimpThumbnailClass GimpThumbnailClass;
  **/
 struct _GimpThumbnail
 {
-  GObject         parent_instance;
+  GObject               parent_instance;
 
+  GimpThumbnailPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   /*< private >*/
   GimpThumbState  image_state;
   gchar          *image_uri;
@@ -71,8 +75,6 @@ struct _GimpThumbnail
   gint64          thumb_mtime;
 
   gchar          *image_mimetype;
-
-  gpointer        _reserved_2;
 };
 
 struct _GimpThumbnailClass
@@ -84,6 +86,10 @@ struct _GimpThumbnailClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpbrowser.c b/libgimpwidgets/gimpbrowser.c
index 352a40d..441385a 100644
--- a/libgimpwidgets/gimpbrowser.c
+++ b/libgimpwidgets/gimpbrowser.c
@@ -50,8 +50,6 @@ enum
 };
 
 
-typedef struct _GimpBrowserPrivate GimpBrowserPrivate;
-
 struct _GimpBrowserPrivate
 {
   GtkWidget *left_vbox;
@@ -68,9 +66,7 @@ struct _GimpBrowserPrivate
   GtkWidget *right_widget;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_BROWSER, \
-                                                      GimpBrowserPrivate)
+#define GET_PRIVATE(obj) (((GimpBrowser *) (obj))->priv)
 
 
 static void      gimp_browser_dispose          (GObject               *object);
@@ -119,12 +115,18 @@ gimp_browser_class_init (GimpBrowserClass *klass)
 static void
 gimp_browser_init (GimpBrowser *browser)
 {
-  GimpBrowserPrivate *priv = GET_PRIVATE (browser);
+  GimpBrowserPrivate *priv;
   GtkWidget          *hbox;
   GtkWidget          *label;
   GtkWidget          *scrolled_window;
   GtkWidget          *viewport;
 
+  browser->priv = G_TYPE_INSTANCE_GET_PRIVATE (browser,
+                                               GIMP_TYPE_BROWSER,
+                                               GimpBrowserPrivate);
+
+  priv = GET_PRIVATE (browser);
+
   gtk_orientable_set_orientation (GTK_ORIENTABLE (browser),
                                   GTK_ORIENTATION_HORIZONTAL);
 
diff --git a/libgimpwidgets/gimpbrowser.h b/libgimpwidgets/gimpbrowser.h
index af8b60c..490c00d 100644
--- a/libgimpwidgets/gimpbrowser.h
+++ b/libgimpwidgets/gimpbrowser.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_BROWSER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_BROWSER, GimpBrowserClass))
 
 
-typedef struct _GimpBrowserClass GimpBrowserClass;
+typedef struct _GimpBrowserPrivate GimpBrowserPrivate;
+typedef struct _GimpBrowserClass   GimpBrowserClass;
 
 struct _GimpBrowser
 {
-  GtkPaned  parent_instance;
+  GtkPaned            parent_instance;
+
+  GimpBrowserPrivate *priv;
 };
 
 struct _GimpBrowserClass
@@ -59,6 +62,10 @@ struct _GimpBrowserClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpbutton.c b/libgimpwidgets/gimpbutton.c
index 43af4ae..acf565e 100644
--- a/libgimpwidgets/gimpbutton.c
+++ b/libgimpwidgets/gimpbutton.c
@@ -46,16 +46,12 @@ enum
 };
 
 
-typedef struct _GimpButtonPrivate GimpButtonPrivate;
-
 struct _GimpButtonPrivate
 {
   GdkModifierType  press_state;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_BUTTON, \
-                                                      GimpButtonPrivate)
+#define GET_PRIVATE(obj) (((GimpButton *) (obj))->priv)
 
 
 static gboolean   gimp_button_button_press (GtkWidget      *widget,
@@ -105,9 +101,9 @@ gimp_button_class_init (GimpButtonClass *klass)
 static void
 gimp_button_init (GimpButton *button)
 {
-  GimpButtonPrivate *private = GET_PRIVATE (button);
-
-  private->press_state = 0;
+  button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
+                                              GIMP_TYPE_BUTTON,
+                                              GimpButtonPrivate);
 }
 
 /**
diff --git a/libgimpwidgets/gimpbutton.h b/libgimpwidgets/gimpbutton.h
index 7476ae4..32d4a6b 100644
--- a/libgimpwidgets/gimpbutton.h
+++ b/libgimpwidgets/gimpbutton.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_BUTTON_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_BUTTON, GimpButtonClass))
 
 
-typedef struct _GimpButtonClass  GimpButtonClass;
+typedef struct _GimpButtonPrivate GimpButtonPrivate;
+typedef struct _GimpButtonClass   GimpButtonClass;
 
 struct _GimpButton
 {
-  GtkButton  parent_instance;
+  GtkButton         parent_instance;
+
+  GimpButtonPrivate *priv;
 };
 
 struct _GimpButtonClass
@@ -58,6 +61,10 @@ struct _GimpButtonClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcellrenderercolor.c b/libgimpwidgets/gimpcellrenderercolor.c
index 0557c61..01321b6 100644
--- a/libgimpwidgets/gimpcellrenderercolor.c
+++ b/libgimpwidgets/gimpcellrenderercolor.c
@@ -54,8 +54,6 @@ enum
 };
 
 
-typedef struct _GimpCellRendererColorPrivate GimpCellRendererColorPrivate;
-
 struct _GimpCellRendererColorPrivate
 {
   GimpRGB     color;
@@ -64,9 +62,7 @@ struct _GimpCellRendererColorPrivate
   gint        border;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_CELL_RENDERER_COLOR, \
-                                                      GimpCellRendererColorPrivate)
+#define GET_PRIVATE(obj) (((GimpCellRendererColor *) (obj))->priv)
 
 
 static void gimp_cell_renderer_color_get_property (GObject            *object,
@@ -141,9 +137,11 @@ gimp_cell_renderer_color_class_init (GimpCellRendererColorClass *klass)
 static void
 gimp_cell_renderer_color_init (GimpCellRendererColor *cell)
 {
-  GimpCellRendererColorPrivate *private = GET_PRIVATE (cell);
+  cell->priv = G_TYPE_INSTANCE_GET_PRIVATE (cell,
+                                            GIMP_TYPE_CELL_RENDERER_COLOR,
+                                            GimpCellRendererColorPrivate);
 
-  gimp_rgba_set (&private->color, 0.0, 0.0, 0.0, 1.0);
+  gimp_rgba_set (&cell->priv->color, 0.0, 0.0, 0.0, 1.0);
 }
 
 static void
diff --git a/libgimpwidgets/gimpcellrenderercolor.h b/libgimpwidgets/gimpcellrenderercolor.h
index 3ab8276..80c35a6 100644
--- a/libgimpwidgets/gimpcellrenderercolor.h
+++ b/libgimpwidgets/gimpcellrenderercolor.h
@@ -37,11 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_CELL_RENDERER_COLOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_CELL_RENDERER_COLOR, GimpCellRendererColorClass))
 
 
-typedef struct _GimpCellRendererColorClass GimpCellRendererColorClass;
+typedef struct _GimpCellRendererColorPrivate GimpCellRendererColorPrivate;
+typedef struct _GimpCellRendererColorClass   GimpCellRendererColorClass;
 
 struct _GimpCellRendererColor
 {
-  GtkCellRenderer  parent_instance;
+  GtkCellRenderer               parent_instance;
+
+  GimpCellRendererColorPrivate *priv;
 };
 
 struct _GimpCellRendererColorClass
@@ -53,6 +56,10 @@ struct _GimpCellRendererColorClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcellrenderertoggle.c b/libgimpwidgets/gimpcellrenderertoggle.c
index f957395..854e6db 100644
--- a/libgimpwidgets/gimpcellrenderertoggle.c
+++ b/libgimpwidgets/gimpcellrenderertoggle.c
@@ -57,8 +57,6 @@ enum
 };
 
 
-typedef struct _GimpCellRendererTogglePrivate GimpCellRendererTogglePrivate;
-
 struct _GimpCellRendererTogglePrivate
 {
   gchar       *icon_name;
@@ -68,10 +66,7 @@ struct _GimpCellRendererTogglePrivate
   GdkPixbuf   *pixbuf;
 };
 
-#define GET_PRIVATE(obj) \
-        G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                     GIMP_TYPE_CELL_RENDERER_TOGGLE, \
-                                     GimpCellRendererTogglePrivate)
+#define GET_PRIVATE(obj) (((GimpCellRendererToggle *) (obj))->priv)
 
 
 static void gimp_cell_renderer_toggle_finalize     (GObject              *object);
@@ -171,6 +166,9 @@ gimp_cell_renderer_toggle_class_init (GimpCellRendererToggleClass *klass)
 static void
 gimp_cell_renderer_toggle_init (GimpCellRendererToggle *toggle)
 {
+  toggle->priv = G_TYPE_INSTANCE_GET_PRIVATE (toggle,
+                                              GIMP_TYPE_CELL_RENDERER_TOGGLE,
+                                              GimpCellRendererTogglePrivate);
 }
 
 static void
diff --git a/libgimpwidgets/gimpcellrenderertoggle.h b/libgimpwidgets/gimpcellrenderertoggle.h
index f83a543..2a80a93 100644
--- a/libgimpwidgets/gimpcellrenderertoggle.h
+++ b/libgimpwidgets/gimpcellrenderertoggle.h
@@ -37,11 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_CELL_RENDERER_TOGGLE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_CELL_RENDERER_TOGGLE, GimpCellRendererToggleClass))
 
 
-typedef struct _GimpCellRendererToggleClass GimpCellRendererToggleClass;
+typedef struct _GimpCellRendererTogglePrivate GimpCellRendererTogglePrivate;
+typedef struct _GimpCellRendererToggleClass   GimpCellRendererToggleClass;
 
 struct _GimpCellRendererToggle
 {
-  GtkCellRendererToggle  parent_instance;
+  GtkCellRendererToggle          parent_instance;
+
+  GimpCellRendererTogglePrivate *priv;
 };
 
 struct _GimpCellRendererToggleClass
@@ -57,6 +60,10 @@ struct _GimpCellRendererToggleClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorarea.c b/libgimpwidgets/gimpcolorarea.c
index 7d8a4ff..d586c40 100644
--- a/libgimpwidgets/gimpcolorarea.c
+++ b/libgimpwidgets/gimpcolorarea.c
@@ -65,8 +65,6 @@ enum
 };
 
 
-typedef struct _GimpColorAreaPrivate GimpColorAreaPrivate;
-
 struct _GimpColorAreaPrivate
 {
   GimpColorConfig    *config;
@@ -83,10 +81,7 @@ struct _GimpColorAreaPrivate
   guint               needs_render : 1;
 };
 
-#define GET_PRIVATE(obj) \
-        G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                     GIMP_TYPE_COLOR_AREA, \
-                                     GimpColorAreaPrivate)
+#define GET_PRIVATE(obj) (((GimpColorArea *) (obj))->priv)
 
 
 static void      gimp_color_area_dispose             (GObject           *object);
@@ -244,7 +239,13 @@ gimp_color_area_class_init (GimpColorAreaClass *klass)
 static void
 gimp_color_area_init (GimpColorArea *area)
 {
-  GimpColorAreaPrivate *priv = GET_PRIVATE (area);
+  GimpColorAreaPrivate *priv;
+
+  area->priv = G_TYPE_INSTANCE_GET_PRIVATE (area,
+                                            GIMP_TYPE_COLOR_AREA,
+                                            GimpColorAreaPrivate);
+
+  priv = GET_PRIVATE (area);
 
   priv->buf         = NULL;
   priv->width       = 0;
diff --git a/libgimpwidgets/gimpcolorarea.h b/libgimpwidgets/gimpcolorarea.h
index 94a9abe..5b0e898 100644
--- a/libgimpwidgets/gimpcolorarea.h
+++ b/libgimpwidgets/gimpcolorarea.h
@@ -42,11 +42,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_AREA_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_AREA, 
GimpColorAreaClass))
 
 
-typedef struct _GimpColorAreaClass  GimpColorAreaClass;
+typedef struct _GimpColorAreaPrivate GimpColorAreaPrivate;
+typedef struct _GimpColorAreaClass   GimpColorAreaClass;
 
 struct _GimpColorArea
 {
-  GtkDrawingArea  parent_instance;
+  GtkDrawingArea        parent_instance;
+
+  GimpColorAreaPrivate *priv;
 };
 
 struct _GimpColorAreaClass
@@ -60,6 +63,10 @@ struct _GimpColorAreaClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorbutton.c b/libgimpwidgets/gimpcolorbutton.c
index 67427a8..e71fa10 100644
--- a/libgimpwidgets/gimpcolorbutton.c
+++ b/libgimpwidgets/gimpcolorbutton.c
@@ -91,8 +91,6 @@ enum
 };
 
 
-typedef struct _GimpColorButtonPrivate GimpColorButtonPrivate;
-
 struct _GimpColorButtonPrivate
 {
   gchar           *title;
@@ -107,9 +105,7 @@ struct _GimpColorButtonPrivate
   GimpColorConfig *config;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_COLOR_BUTTON, \
-                                                      GimpColorButtonPrivate)
+#define GET_PRIVATE(obj) (((GimpColorButton *) (obj))->priv)
 
 
 static void     gimp_color_button_class_init     (GimpColorButtonClass *klass);
@@ -346,10 +342,16 @@ static void
 gimp_color_button_init (GimpColorButton      *button,
                         GimpColorButtonClass *klass)
 {
-  GimpColorButtonPrivate *priv = GET_PRIVATE (button);
+  GimpColorButtonPrivate *priv;
   GtkActionGroup         *group;
   gint                    i;
 
+  button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
+                                              GIMP_TYPE_COLOR_BUTTON,
+                                              GimpColorButtonPrivate);
+
+  priv = GET_PRIVATE (button);
+
   priv->color_area = g_object_new (GIMP_TYPE_COLOR_AREA,
                                    "drag-mask", GDK_BUTTON1_MASK,
                                    NULL);
diff --git a/libgimpwidgets/gimpcolorbutton.h b/libgimpwidgets/gimpcolorbutton.h
index 4c4d0b5..d8572b4 100644
--- a/libgimpwidgets/gimpcolorbutton.h
+++ b/libgimpwidgets/gimpcolorbutton.h
@@ -45,11 +45,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_BUTTON_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_BUTTON, 
GimpColorButtonClass))
 
 
-typedef struct _GimpColorButtonClass  GimpColorButtonClass;
+typedef struct _GimpColorButtonPrivate GimpColorButtonPrivate;
+typedef struct _GimpColorButtonClass   GimpColorButtonClass;
 
 struct _GimpColorButton
 {
-  GimpButton  parent_instance;
+  GimpButton              parent_instance;
+
+  GimpColorButtonPrivate *priv;
 };
 
 struct _GimpColorButtonClass
@@ -67,6 +70,10 @@ struct _GimpColorButtonClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolordisplay.c b/libgimpwidgets/gimpcolordisplay.c
index 9cf180e..e3a98de 100644
--- a/libgimpwidgets/gimpcolordisplay.c
+++ b/libgimpwidgets/gimpcolordisplay.c
@@ -62,8 +62,6 @@ enum
 };
 
 
-typedef struct _GimpColorDisplayPrivate GimpColorDisplayPrivate;
-
 struct _GimpColorDisplayPrivate
 {
   gboolean          enabled;
@@ -71,9 +69,7 @@ struct _GimpColorDisplayPrivate
   GimpColorManaged *managed;
 };
 
-#define GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
-                                                       GIMP_TYPE_COLOR_DISPLAY, \
-                                                       GimpColorDisplayPrivate))
+#define GET_PRIVATE(obj) (((GimpColorDisplay *) (obj))->priv)
 
 
 
@@ -160,9 +156,9 @@ gimp_color_display_class_init (GimpColorDisplayClass *klass)
 static void
 gimp_color_display_init (GimpColorDisplay *display)
 {
-  GimpColorDisplayPrivate *private = GET_PRIVATE (display);
-
-  private->enabled = FALSE;
+  display->priv = G_TYPE_INSTANCE_GET_PRIVATE (display,
+                                               GIMP_TYPE_COLOR_DISPLAY,
+                                               GimpColorDisplayPrivate);
 }
 
 static void
diff --git a/libgimpwidgets/gimpcolordisplay.h b/libgimpwidgets/gimpcolordisplay.h
index 8620256..c165eec 100644
--- a/libgimpwidgets/gimpcolordisplay.h
+++ b/libgimpwidgets/gimpcolordisplay.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_DISPLAY_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_DISPLAY, 
GimpColorDisplayClass))
 
 
-typedef struct _GimpColorDisplayClass GimpColorDisplayClass;
+typedef struct _GimpColorDisplayPrivate GimpColorDisplayPrivate;
+typedef struct _GimpColorDisplayClass   GimpColorDisplayClass;
 
 struct _GimpColorDisplay
 {
-  GObject  parent_instance;
+  GObject                 parent_instance;
+
+  GimpColorDisplayPrivate *priv;
 };
 
 struct _GimpColorDisplayClass
@@ -55,44 +58,47 @@ struct _GimpColorDisplayClass
   const gchar  *icon_name;
 
   /*  virtual functions  */
-
-  void               (* convert_buffer)  (GimpColorDisplay *display,
-                                          GeglBuffer       *buffer,
-                                          GeglRectangle    *area);
-  GtkWidget        * (* configure)       (GimpColorDisplay *display);
+  void        (* convert_buffer) (GimpColorDisplay *display,
+                                  GeglBuffer       *buffer,
+                                  GeglRectangle    *area);
+  GtkWidget * (* configure)      (GimpColorDisplay *display);
 
   /*  signals  */
-  void               (* changed)         (GimpColorDisplay *display);
+  void        (* changed)        (GimpColorDisplay *display);
 
   /* Padding for future expansion */
   void (* _gimp_reserved1) (void);
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
-GType              gimp_color_display_get_type    (void) G_GNUC_CONST;
+GType              gimp_color_display_get_type        (void) G_GNUC_CONST;
 
-GimpColorDisplay * gimp_color_display_clone       (GimpColorDisplay *display);
+GimpColorDisplay * gimp_color_display_clone           (GimpColorDisplay *display);
 
-void           gimp_color_display_convert_buffer  (GimpColorDisplay *display,
-                                                   GeglBuffer       *buffer,
-                                                   GeglRectangle    *area);
-void           gimp_color_display_load_state      (GimpColorDisplay *display,
-                                                   GimpParasite     *state);
-GimpParasite * gimp_color_display_save_state      (GimpColorDisplay *display);
-GtkWidget    * gimp_color_display_configure       (GimpColorDisplay *display);
-void           gimp_color_display_configure_reset (GimpColorDisplay *display);
+void               gimp_color_display_convert_buffer  (GimpColorDisplay *display,
+                                                       GeglBuffer       *buffer,
+                                                       GeglRectangle    *area);
+void               gimp_color_display_load_state      (GimpColorDisplay *display,
+                                                       GimpParasite     *state);
+GimpParasite     * gimp_color_display_save_state      (GimpColorDisplay *display);
+GtkWidget        * gimp_color_display_configure       (GimpColorDisplay *display);
+void               gimp_color_display_configure_reset (GimpColorDisplay *display);
 
-void           gimp_color_display_changed         (GimpColorDisplay *display);
+void               gimp_color_display_changed         (GimpColorDisplay *display);
 
-void           gimp_color_display_set_enabled     (GimpColorDisplay *display,
-                                                   gboolean          enabled);
-gboolean       gimp_color_display_get_enabled     (GimpColorDisplay *display);
+void               gimp_color_display_set_enabled     (GimpColorDisplay *display,
+                                                       gboolean          enabled);
+gboolean           gimp_color_display_get_enabled     (GimpColorDisplay *display);
 
-GimpColorConfig  * gimp_color_display_get_config  (GimpColorDisplay *display);
-GimpColorManaged * gimp_color_display_get_managed (GimpColorDisplay *display);
+GimpColorConfig  * gimp_color_display_get_config      (GimpColorDisplay *display);
+GimpColorManaged * gimp_color_display_get_managed     (GimpColorDisplay *display);
 
 
 G_END_DECLS
diff --git a/libgimpwidgets/gimpcolordisplaystack.c b/libgimpwidgets/gimpcolordisplaystack.c
index 7a095b3..989c359 100644
--- a/libgimpwidgets/gimpcolordisplaystack.c
+++ b/libgimpwidgets/gimpcolordisplaystack.c
@@ -53,16 +53,12 @@ enum
 };
 
 
-typedef struct _GimpColorDisplayStackPrivate GimpColorDisplayStackPrivate;
-
 struct _GimpColorDisplayStackPrivate
 {
   GList *filters;
 };
 
-#define GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
-                                                       GIMP_TYPE_COLOR_DISPLAY_STACK, \
-                                                       GimpColorDisplayStackPrivate))
+#define GET_PRIVATE(obj) (((GimpColorDisplayStack *) (obj))->priv)
 
 
 static void   gimp_color_display_stack_dispose         (GObject               *object);
@@ -142,9 +138,9 @@ gimp_color_display_stack_class_init (GimpColorDisplayStackClass *klass)
 static void
 gimp_color_display_stack_init (GimpColorDisplayStack *stack)
 {
-  GimpColorDisplayStackPrivate *private = GET_PRIVATE (stack);
-
-  private->filters = NULL;
+  stack->priv = G_TYPE_INSTANCE_GET_PRIVATE (stack,
+                                             GIMP_TYPE_COLOR_DISPLAY_STACK,
+                                             GimpColorDisplayStackPrivate);
 }
 
 static void
diff --git a/libgimpwidgets/gimpcolordisplaystack.h b/libgimpwidgets/gimpcolordisplaystack.h
index 1a5642a..6254f44 100644
--- a/libgimpwidgets/gimpcolordisplaystack.h
+++ b/libgimpwidgets/gimpcolordisplaystack.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_DISPLAY_STACK_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_COLOR_DISPLAY_STACK, GimpColorDisplayStackClass))
 
 
-typedef struct _GimpColorDisplayStackClass GimpColorDisplayStackClass;
+typedef struct _GimpColorDisplayStackPrivate GimpColorDisplayStackPrivate;
+typedef struct _GimpColorDisplayStackClass   GimpColorDisplayStackClass;
 
 struct _GimpColorDisplayStack
 {
-  GObject  parent_instance;
+  GObject                       parent_instance;
+
+  GimpColorDisplayStackPrivate *priv;
 };
 
 struct _GimpColorDisplayStackClass
@@ -66,6 +69,10 @@ struct _GimpColorDisplayStackClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorhexentry.c b/libgimpwidgets/gimpcolorhexentry.c
index 42b4485..25a8ffb 100644
--- a/libgimpwidgets/gimpcolorhexentry.c
+++ b/libgimpwidgets/gimpcolorhexentry.c
@@ -58,16 +58,12 @@ enum
 };
 
 
-typedef struct _GimpColorHexEntryPrivate GimpColorHexEntryPrivate;
-
 struct _GimpColorHexEntryPrivate
 {
   GimpRGB  color;
 };
 
-#define GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
-                                                       GIMP_TYPE_COLOR_HEX_ENTRY, \
-                                                       GimpColorHexEntryPrivate))
+#define GET_PRIVATE(obj) (((GimpColorHexEntry *) (obj))->priv)
 
 
 static void      gimp_color_hex_entry_constructed (GObject            *object);
@@ -115,7 +111,7 @@ gimp_color_hex_entry_class_init (GimpColorHexEntryClass *klass)
 static void
 gimp_color_hex_entry_init (GimpColorHexEntry *entry)
 {
-  GimpColorHexEntryPrivate *private = GET_PRIVATE (entry);
+  GimpColorHexEntryPrivate *private;
   GtkEntryCompletion       *completion;
   GtkCellRenderer          *cell;
   GtkListStore             *store;
@@ -124,6 +120,12 @@ gimp_color_hex_entry_init (GimpColorHexEntry *entry)
   gint                      num_colors;
   gint                      i;
 
+  entry->priv = G_TYPE_INSTANCE_GET_PRIVATE (entry,
+                                             GIMP_TYPE_COLOR_HEX_ENTRY,
+                                             GimpColorHexEntryPrivate);
+
+  private = GET_PRIVATE (entry);
+
   /* GtkEntry's minimum size is way too large, set a reasonable one
    * for our use case
    */
diff --git a/libgimpwidgets/gimpcolorhexentry.h b/libgimpwidgets/gimpcolorhexentry.h
index 2585f5e..9cdf8a6 100644
--- a/libgimpwidgets/gimpcolorhexentry.h
+++ b/libgimpwidgets/gimpcolorhexentry.h
@@ -37,11 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_HEX_ENTRY_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_HEX_AREA, 
GimpColorHexEntryClass))
 
 
-typedef struct _GimpColorHexEntryClass  GimpColorHexEntryClass;
+typedef struct _GimpColorHexEntryPrivate GimpColorHexEntryPrivate;
+typedef struct _GimpColorHexEntryClass   GimpColorHexEntryClass;
 
 struct _GimpColorHexEntry
 {
-  GtkEntry  parent_instance;
+  GtkEntry                  parent_instance;
+
+  GimpColorHexEntryPrivate *priv;
 };
 
 struct _GimpColorHexEntryClass
@@ -55,6 +58,10 @@ struct _GimpColorHexEntryClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolornotebook.h b/libgimpwidgets/gimpcolornotebook.h
index 663f603..4303e90 100644
--- a/libgimpwidgets/gimpcolornotebook.h
+++ b/libgimpwidgets/gimpcolornotebook.h
@@ -61,6 +61,10 @@ struct _GimpColorNotebookClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorprofilechooserdialog.h b/libgimpwidgets/gimpcolorprofilechooserdialog.h
index 0fbb19e..bcba3ae 100644
--- a/libgimpwidgets/gimpcolorprofilechooserdialog.h
+++ b/libgimpwidgets/gimpcolorprofilechooserdialog.h
@@ -52,6 +52,10 @@ struct _GimpColorProfileChooserDialogClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorprofilecombobox.c b/libgimpwidgets/gimpcolorprofilecombobox.c
index 3da49e5..32bd36e 100644
--- a/libgimpwidgets/gimpcolorprofilecombobox.c
+++ b/libgimpwidgets/gimpcolorprofilecombobox.c
@@ -51,17 +51,13 @@ enum
 };
 
 
-typedef struct _GimpColorProfileComboBoxPrivate GimpColorProfileComboBoxPrivate;
-
 struct _GimpColorProfileComboBoxPrivate
 {
   GtkWidget   *dialog;
   GtkTreePath *last_path;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_COLOR_PROFILE_COMBO_BOX, \
-                                                      GimpColorProfileComboBoxPrivate)
+#define GET_PRIVATE(obj) (((GimpColorProfileComboBox *) (obj))->priv)
 
 
 static void  gimp_color_profile_combo_box_finalize     (GObject      *object);
@@ -142,7 +138,13 @@ gimp_color_profile_combo_box_class_init (GimpColorProfileComboBoxClass *klass)
 static void
 gimp_color_profile_combo_box_init (GimpColorProfileComboBox *combo_box)
 {
-  GtkCellRenderer *cell = gtk_cell_renderer_text_new ();
+  GtkCellRenderer *cell;
+
+  combo_box->priv = G_TYPE_INSTANCE_GET_PRIVATE (combo_box,
+                                                 GIMP_TYPE_COLOR_PROFILE_COMBO_BOX,
+                                                 GimpColorProfileComboBoxPrivate);
+
+  cell = gtk_cell_renderer_text_new ();
 
   g_object_set (cell,
                 "width-chars", 42,
diff --git a/libgimpwidgets/gimpcolorprofilecombobox.h b/libgimpwidgets/gimpcolorprofilecombobox.h
index 96003b6..cc57854 100644
--- a/libgimpwidgets/gimpcolorprofilecombobox.h
+++ b/libgimpwidgets/gimpcolorprofilecombobox.h
@@ -36,11 +36,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_PROFILE_COMBO_BOX_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_COLOR_PROFILE_COMBO_BOX, GimpColorProfileComboBoxClass))
 
 
-typedef struct _GimpColorProfileComboBoxClass  GimpColorProfileComboBoxClass;
+typedef struct _GimpColorProfileComboBoxPrivate GimpColorProfileComboBoxPrivate;
+typedef struct _GimpColorProfileComboBoxClass   GimpColorProfileComboBoxClass;
 
 struct _GimpColorProfileComboBox
 {
-  GtkComboBox  parent_instance;
+  GtkComboBox                     parent_instance;
+
+  GimpColorProfileComboBoxPrivate *priv;
 };
 
 struct _GimpColorProfileComboBoxClass
@@ -52,6 +55,10 @@ struct _GimpColorProfileComboBoxClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorprofilestore.c b/libgimpwidgets/gimpcolorprofilestore.c
index dc42c1f..bc637d1 100644
--- a/libgimpwidgets/gimpcolorprofilestore.c
+++ b/libgimpwidgets/gimpcolorprofilestore.c
@@ -54,16 +54,12 @@ enum
 };
 
 
-typedef struct _GimpColorProfileStorePrivate GimpColorProfileStorePrivate;
-
 struct _GimpColorProfileStorePrivate
 {
   gchar *history;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_COLOR_PROFILE_STORE, \
-                                                      GimpColorProfileStorePrivate)
+#define GET_PRIVATE(obj) (((GimpColorProfileStore *) (obj))->priv)
 
 
 static void      gimp_color_profile_store_constructed    (GObject               *object);
@@ -141,6 +137,10 @@ gimp_color_profile_store_init (GimpColorProfileStore *store)
       G_TYPE_INT     /*  GIMP_COLOR_PROFILE_STORE_INDEX      */
     };
 
+  store->priv = G_TYPE_INSTANCE_GET_PRIVATE (store,
+                                             GIMP_TYPE_COLOR_PROFILE_STORE,
+                                             GimpColorProfileStorePrivate);
+
   gtk_list_store_set_column_types (GTK_LIST_STORE (store),
                                    G_N_ELEMENTS (types), types);
 }
diff --git a/libgimpwidgets/gimpcolorprofilestore.h b/libgimpwidgets/gimpcolorprofilestore.h
index 0c78c0f..22024de 100644
--- a/libgimpwidgets/gimpcolorprofilestore.h
+++ b/libgimpwidgets/gimpcolorprofilestore.h
@@ -37,11 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_PROFILE_STORE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_COLOR_PROFILE_STORE, GimpColorProfileStoreClass))
 
 
-typedef struct _GimpColorProfileStoreClass  GimpColorProfileStoreClass;
+typedef struct _GimpColorProfileStorePrivate GimpColorProfileStorePrivate;
+typedef struct _GimpColorProfileStoreClass   GimpColorProfileStoreClass;
 
 struct _GimpColorProfileStore
 {
-  GtkListStore  parent_instance;
+  GtkListStore                  parent_instance;
+
+  GimpColorProfileStorePrivate *priv;
 };
 
 struct _GimpColorProfileStoreClass
@@ -52,6 +55,10 @@ struct _GimpColorProfileStoreClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorprofileview.h b/libgimpwidgets/gimpcolorprofileview.h
index bccffe0..7151eac 100644
--- a/libgimpwidgets/gimpcolorprofileview.h
+++ b/libgimpwidgets/gimpcolorprofileview.h
@@ -51,6 +51,10 @@ struct _GimpColorProfileViewClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorscale.c b/libgimpwidgets/gimpcolorscale.c
index 3ceffed..cec094b 100644
--- a/libgimpwidgets/gimpcolorscale.c
+++ b/libgimpwidgets/gimpcolorscale.c
@@ -62,8 +62,6 @@ struct _GimpLCH
 };
 
 
-typedef struct _GimpColorScalePrivate GimpColorScalePrivate;
-
 struct _GimpColorScalePrivate
 {
   GimpColorConfig          *config;
@@ -82,10 +80,7 @@ struct _GimpColorScalePrivate
   gboolean                  needs_render;
 };
 
-#define GET_PRIVATE(obj) \
-        G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                     GIMP_TYPE_COLOR_SCALE, \
-                                     GimpColorScalePrivate)
+#define GET_PRIVATE(obj) (((GimpColorScale *) (obj))->priv)
 
 
 static void     gimp_color_scale_dispose             (GObject          *object);
@@ -172,10 +167,16 @@ gimp_color_scale_class_init (GimpColorScaleClass *klass)
 static void
 gimp_color_scale_init (GimpColorScale *scale)
 {
-  GimpColorScalePrivate *priv  = GET_PRIVATE (scale);
+  GimpColorScalePrivate *priv;
   GtkRange              *range = GTK_RANGE (scale);
   GtkCssProvider        *css;
 
+  scale->priv = G_TYPE_INSTANCE_GET_PRIVATE (scale,
+                                             GIMP_TYPE_COLOR_SCALE,
+                                             GimpColorScalePrivate);
+
+  priv = scale->priv;
+
   gtk_widget_set_can_focus (GTK_WIDGET (scale), TRUE);
 
   gtk_range_set_slider_size_fixed (range, TRUE);
diff --git a/libgimpwidgets/gimpcolorscale.h b/libgimpwidgets/gimpcolorscale.h
index 6f7cfea..921d3d9 100644
--- a/libgimpwidgets/gimpcolorscale.h
+++ b/libgimpwidgets/gimpcolorscale.h
@@ -38,11 +38,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_SCALE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_SCALE, 
GimpColorScaleClass))
 
 
-typedef struct _GimpColorScaleClass  GimpColorScaleClass;
+typedef struct _GimpColorScalePrivate GimpColorScalePrivate;
+typedef struct _GimpColorScaleClass   GimpColorScaleClass;
 
 struct _GimpColorScale
 {
-  GtkRange  parent_instance;
+  GtkRange               parent_instance;
+
+  GimpColorScalePrivate *priv;
 };
 
 struct _GimpColorScaleClass
@@ -54,6 +57,10 @@ struct _GimpColorScaleClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorselection.c b/libgimpwidgets/gimpcolorselection.c
index f438835..685bad3 100644
--- a/libgimpwidgets/gimpcolorselection.c
+++ b/libgimpwidgets/gimpcolorselection.c
@@ -82,8 +82,6 @@ enum
 };
 
 
-typedef struct _GimpColorSelectionPrivate GimpColorSelectionPrivate;
-
 struct _GimpColorSelectionPrivate
 {
   gboolean                  show_alpha;
@@ -102,9 +100,7 @@ struct _GimpColorSelectionPrivate
   GtkWidget                *old_color;
 };
 
-#define GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
-                                                       GIMP_TYPE_COLOR_SELECTION, \
-                                                       GimpColorSelectionPrivate))
+#define GET_PRIVATE(obj) (((GimpColorSelection *) (obj))->priv)
 
 
 static void   gimp_color_selection_set_property      (GObject            *object,
@@ -177,7 +173,7 @@ gimp_color_selection_class_init (GimpColorSelectionClass *klass)
 static void
 gimp_color_selection_init (GimpColorSelection *selection)
 {
-  GimpColorSelectionPrivate *priv = GET_PRIVATE (selection);
+  GimpColorSelectionPrivate *priv;
   GtkWidget                 *main_hbox;
   GtkWidget                 *hbox;
   GtkWidget                 *vbox;
@@ -188,6 +184,12 @@ gimp_color_selection_init (GimpColorSelection *selection)
   GtkSizeGroup              *new_group;
   GtkSizeGroup              *old_group;
 
+  selection->priv = G_TYPE_INSTANCE_GET_PRIVATE (selection,
+                                                 GIMP_TYPE_COLOR_SELECTION,
+                                                 GimpColorSelectionPrivate);
+
+  priv = selection->priv;
+
   priv->show_alpha = TRUE;
 
   gtk_orientable_set_orientation (GTK_ORIENTABLE (selection),
diff --git a/libgimpwidgets/gimpcolorselection.h b/libgimpwidgets/gimpcolorselection.h
index 5263d69..34f8f78 100644
--- a/libgimpwidgets/gimpcolorselection.h
+++ b/libgimpwidgets/gimpcolorselection.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_COLOR_SELECTION_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_SELECTION, 
GimpColorSelectionClass))
 
 
-typedef struct _GimpColorSelectionClass GimpColorSelectionClass;
+typedef struct _GimpColorSelectionPrivate GimpColorSelectionPrivate;
+typedef struct _GimpColorSelectionClass   GimpColorSelectionClass;
 
 struct _GimpColorSelection
 {
-  GtkBox  parent_instance;
+  GtkBox                     parent_instance;
+
+  GimpColorSelectionPrivate *priv;
 };
 
 struct _GimpColorSelectionClass
@@ -57,6 +60,10 @@ struct _GimpColorSelectionClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpcolorselector.c b/libgimpwidgets/gimpcolorselector.c
index 24497ea..88f501a 100644
--- a/libgimpwidgets/gimpcolorselector.c
+++ b/libgimpwidgets/gimpcolorselector.c
@@ -58,17 +58,12 @@ enum
 };
 
 
-typedef struct _GimpColorSelectorPrivate GimpColorSelectorPrivate;
-
 struct _GimpColorSelectorPrivate
 {
   gboolean model_visible[3];
 };
 
-#define GET_PRIVATE(obj) \
-        G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                     GIMP_TYPE_COLOR_SELECTOR, \
-                                     GimpColorSelectorPrivate)
+#define GET_PRIVATE(obj) (((GimpColorSelector *) (obj))->priv)
 
 
 static void   gimp_color_selector_dispose (GObject *object);
@@ -141,7 +136,13 @@ gimp_color_selector_class_init (GimpColorSelectorClass *klass)
 static void
 gimp_color_selector_init (GimpColorSelector *selector)
 {
-  GimpColorSelectorPrivate *priv = GET_PRIVATE (selector);
+  GimpColorSelectorPrivate *priv;
+
+  selector->priv = G_TYPE_INSTANCE_GET_PRIVATE (selector,
+                                                GIMP_TYPE_COLOR_SELECTOR,
+                                                GimpColorSelectorPrivate);
+
+  priv = GET_PRIVATE (selector);
 
   selector->toggles_visible   = TRUE;
   selector->toggles_sensitive = TRUE;
diff --git a/libgimpwidgets/gimpcolorselector.h b/libgimpwidgets/gimpcolorselector.h
index f79d0e2..fdff737 100644
--- a/libgimpwidgets/gimpcolorselector.h
+++ b/libgimpwidgets/gimpcolorselector.h
@@ -59,13 +59,16 @@ G_BEGIN_DECLS
 #define GIMP_IS_COLOR_SELECTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_COLOR_SELECTOR))
 #define GIMP_COLOR_SELECTOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_SELECTOR, 
GimpColorSelectorClass))
 
-
-typedef struct _GimpColorSelectorClass GimpColorSelectorClass;
+typedef struct _GimpColorSelectorPrivate GimpColorSelectorPrivate;
+typedef struct _GimpColorSelectorClass   GimpColorSelectorClass;
 
 struct _GimpColorSelector
 {
   GtkBox                    parent_instance;
 
+  GimpColorSelectorPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   gboolean                  toggles_visible;
   gboolean                  toggles_sensitive;
   gboolean                  show_alpha;
diff --git a/libgimpwidgets/gimpcontroller.h b/libgimpwidgets/gimpcontroller.h
index 0022d98..2c8e9d5 100644
--- a/libgimpwidgets/gimpcontroller.h
+++ b/libgimpwidgets/gimpcontroller.h
@@ -89,12 +89,16 @@ union _GimpControllerEvent
 #define GIMP_CONTROLLER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CONTROLLER, 
GimpControllerClass))
 
 
-typedef struct _GimpControllerClass GimpControllerClass;
+typedef struct _GimpControllerPrivate GimpControllerPrivate;
+typedef struct _GimpControllerClass   GimpControllerClass;
 
 struct _GimpController
 {
-  GObject   parent_instance;
+  GObject                parent_instance;
 
+  GimpControllerPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   gchar    *name;
   gchar    *state;
 };
@@ -106,6 +110,7 @@ struct _GimpControllerClass
   const gchar  *name;
   const gchar  *help_domain;
   const gchar  *help_id;
+  const gchar  *icon_name;
 
   /*  virtual functions  */
   gint          (* get_n_events)    (GimpController            *controller);
@@ -118,12 +123,15 @@ struct _GimpControllerClass
   gboolean      (* event)           (GimpController            *controller,
                                      const GimpControllerEvent *event);
 
-  const gchar  *icon_name;
-
   /* Padding for future expansion */
+  void (* _gimp_reserved1) (void);
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpdialog.c b/libgimpwidgets/gimpdialog.c
index fdaddca..63c302d 100644
--- a/libgimpwidgets/gimpdialog.c
+++ b/libgimpwidgets/gimpdialog.c
@@ -51,8 +51,6 @@ enum
 };
 
 
-typedef struct _GimpDialogPrivate GimpDialogPrivate;
-
 struct _GimpDialogPrivate
 {
   GimpHelpFunc  help_func;
@@ -60,9 +58,7 @@ struct _GimpDialogPrivate
   GtkWidget    *help_button;
 };
 
-#define GET_PRIVATE(dialog) G_TYPE_INSTANCE_GET_PRIVATE (dialog, \
-                                                         GIMP_TYPE_DIALOG, \
-                                                         GimpDialogPrivate)
+#define GET_PRIVATE(obj) (((GimpDialog *) (obj))->priv)
 
 
 static void       gimp_dialog_constructed  (GObject      *object);
@@ -156,6 +152,10 @@ gimp_dialog_class_init (GimpDialogClass *klass)
 static void
 gimp_dialog_init (GimpDialog *dialog)
 {
+  dialog->priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog,
+                                              GIMP_TYPE_DIALOG,
+                                              GimpDialogPrivate);
+
   g_signal_connect (dialog, "response",
                     G_CALLBACK (gimp_dialog_response),
                     NULL);
diff --git a/libgimpwidgets/gimpdialog.h b/libgimpwidgets/gimpdialog.h
index 8183f47..7e2577a 100644
--- a/libgimpwidgets/gimpdialog.h
+++ b/libgimpwidgets/gimpdialog.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_DIALOG_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_DIALOG, GimpDialogClass))
 
 
-typedef struct _GimpDialogClass  GimpDialogClass;
+typedef struct _GimpDialogPrivate GimpDialogPrivate;
+typedef struct _GimpDialogClass   GimpDialogClass;
 
 struct _GimpDialog
 {
-  GtkDialog  parent_instance;
+  GtkDialog          parent_instance;
+
+  GimpDialogPrivate *priv;
 };
 
 struct _GimpDialogClass
@@ -55,6 +58,10 @@ struct _GimpDialogClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpenumcombobox.h b/libgimpwidgets/gimpenumcombobox.h
index 1cdd762..650c2b2 100644
--- a/libgimpwidgets/gimpenumcombobox.h
+++ b/libgimpwidgets/gimpenumcombobox.h
@@ -38,11 +38,14 @@ G_BEGIN_DECLS
 #define GIMP_ENUM_COMBO_BOX_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ENUM_COMBO_BOX, 
GimpEnumComboBoxClass))
 
 
-typedef struct _GimpEnumComboBoxClass  GimpEnumComboBoxClass;
+typedef struct _GimpEnumComboBoxPrivate GimpEnumComboBoxPrivate;
+typedef struct _GimpEnumComboBoxClass   GimpEnumComboBoxClass;
 
 struct _GimpEnumComboBox
 {
-  GimpIntComboBox       parent_instance;
+  GimpIntComboBox          parent_instance;
+
+  GimpEnumComboBoxPrivate *priv;
 };
 
 struct _GimpEnumComboBoxClass
@@ -54,6 +57,10 @@ struct _GimpEnumComboBoxClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpenumlabel.c b/libgimpwidgets/gimpenumlabel.c
index d236e2f..0b70d9a 100644
--- a/libgimpwidgets/gimpenumlabel.c
+++ b/libgimpwidgets/gimpenumlabel.c
@@ -47,17 +47,12 @@ enum
 };
 
 
-
-typedef struct _GimpEnumLabelPrivate GimpEnumLabelPrivate;
-
 struct _GimpEnumLabelPrivate
 {
   GEnumClass *enum_class;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_ENUM_LABEL, \
-                                                      GimpEnumLabelPrivate)
+#define GET_PRIVATE(obj) (((GimpEnumLabel *) (obj))->priv)
 
 
 static void   gimp_enum_label_finalize     (GObject      *object);
@@ -121,6 +116,9 @@ gimp_enum_label_class_init (GimpEnumLabelClass *klass)
 static void
 gimp_enum_label_init (GimpEnumLabel *enum_label)
 {
+  enum_label->priv = G_TYPE_INSTANCE_GET_PRIVATE (enum_label,
+                                                  GIMP_TYPE_ENUM_LABEL,
+                                                  GimpEnumLabelPrivate);
 }
 
 static void
diff --git a/libgimpwidgets/gimpenumlabel.h b/libgimpwidgets/gimpenumlabel.h
index 11139e0..362960f 100644
--- a/libgimpwidgets/gimpenumlabel.h
+++ b/libgimpwidgets/gimpenumlabel.h
@@ -37,11 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_ENUM_LABEL_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ENUM_LABEL, 
GimpEnumLabelClass))
 
 
-typedef struct _GimpEnumLabelClass  GimpEnumLabelClass;
+typedef struct _GimpEnumLabelPrivate GimpEnumLabelPrivate;
+typedef struct _GimpEnumLabelClass   GimpEnumLabelClass;
 
 struct _GimpEnumLabel
 {
-  GtkLabel  parent_instance;
+  GtkLabel              parent_instance;
+
+  GimpEnumLabelPrivate *priv;
 };
 
 struct _GimpEnumLabelClass
@@ -53,6 +56,10 @@ struct _GimpEnumLabelClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpenumstore.h b/libgimpwidgets/gimpenumstore.h
index 5da587b..856299d 100644
--- a/libgimpwidgets/gimpenumstore.h
+++ b/libgimpwidgets/gimpenumstore.h
@@ -39,12 +39,16 @@ G_BEGIN_DECLS
 #define GIMP_ENUM_STORE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ENUM_STORE, 
GimpEnumStoreClass))
 
 
-typedef struct _GimpEnumStoreClass  GimpEnumStoreClass;
+typedef struct _GimpEnumStorePrivate GimpEnumStorePrivate;
+typedef struct _GimpEnumStoreClass   GimpEnumStoreClass;
 
 struct _GimpEnumStore
 {
-  GimpIntStore       parent_instance;
+  GimpIntStore          parent_instance;
 
+  GimpEnumStorePrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GEnumClass        *enum_class;
 };
 
@@ -56,6 +60,10 @@ struct _GimpEnumStoreClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpfileentry.h b/libgimpwidgets/gimpfileentry.h
index 7c45a7f..e084c4b 100644
--- a/libgimpwidgets/gimpfileentry.h
+++ b/libgimpwidgets/gimpfileentry.h
@@ -41,12 +41,16 @@ G_BEGIN_DECLS
 #define GIMP_FILE_ENTRY_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_FILE_ENTRY, 
GimpFileEntryClass))
 
 
-typedef struct _GimpFileEntryClass  GimpFileEntryClass;
+typedef struct _GimpFileEntryPrivate GimpFileEntryPrivate;
+typedef struct _GimpFileEntryClass   GimpFileEntryClass;
 
 struct _GimpFileEntry
 {
-  GtkBox     parent_instance;
+  GtkBox                parent_instance;
 
+  GimpFileEntryPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GtkWidget *file_exists;
   GtkWidget *entry;
   GtkWidget *browse_button;
@@ -69,6 +73,10 @@ struct _GimpFileEntryClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpframe.h b/libgimpwidgets/gimpframe.h
index 61cb59b..d979d93 100644
--- a/libgimpwidgets/gimpframe.h
+++ b/libgimpwidgets/gimpframe.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_FRAME_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_FRAME, GimpFrameClass))
 
 
-typedef struct _GimpFrameClass  GimpFrameClass;
+typedef struct _GimpFramePrivate GimpFramePrivate;
+typedef struct _GimpFrameClass   GimpFrameClass;
 
 struct _GimpFrame
 {
-  GtkFrame       parent_instance;
+  GtkFrame          parent_instance;
+
+  GimpFramePrivate *priv;
 };
 
 struct _GimpFrameClass
@@ -55,6 +58,10 @@ struct _GimpFrameClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpintcombobox.c b/libgimpwidgets/gimpintcombobox.c
index d2c4fa8..39c97da 100644
--- a/libgimpwidgets/gimpintcombobox.c
+++ b/libgimpwidgets/gimpintcombobox.c
@@ -50,7 +50,7 @@ enum
 };
 
 
-typedef struct
+struct _GimpIntComboBoxPrivate
 {
   GtkCellRenderer        *pixbuf_renderer;
   GtkCellRenderer        *text_renderer;
@@ -66,10 +66,9 @@ typedef struct
   GimpIntSensitivityFunc  sensitivity_func;
   gpointer                sensitivity_data;
   GDestroyNotify          sensitivity_destroy;
-} GimpIntComboBoxPrivate;
+};
 
-#define GIMP_INT_COMBO_BOX_GET_PRIVATE(obj) \
-  ((GimpIntComboBoxPrivate *) ((GimpIntComboBox *) (obj))->priv)
+#define GET_PRIVATE(obj) (((GimpIntComboBox *) (obj))->priv)
 
 
 static void  gimp_int_combo_box_constructed  (GObject         *object);
@@ -183,7 +182,7 @@ gimp_int_combo_box_constructed (GObject *object)
 static void
 gimp_int_combo_box_finalize (GObject *object)
 {
-  GimpIntComboBoxPrivate *priv = GIMP_INT_COMBO_BOX_GET_PRIVATE (object);
+  GimpIntComboBoxPrivate *priv = GET_PRIVATE (object);
 
   g_clear_pointer (&priv->label, g_free);
 
@@ -204,7 +203,7 @@ gimp_int_combo_box_set_property (GObject      *object,
                                  const GValue *value,
                                  GParamSpec   *pspec)
 {
-  GimpIntComboBoxPrivate *priv = GIMP_INT_COMBO_BOX_GET_PRIVATE (object);
+  GimpIntComboBoxPrivate *priv = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -237,7 +236,7 @@ gimp_int_combo_box_get_property (GObject    *object,
                                  GValue     *value,
                                  GParamSpec *pspec)
 {
-  GimpIntComboBoxPrivate *priv = GIMP_INT_COMBO_BOX_GET_PRIVATE (object);
+  GimpIntComboBoxPrivate *priv = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -637,7 +636,7 @@ gimp_int_combo_box_set_label (GimpIntComboBox *combo_box,
 
   g_return_if_fail (GIMP_IS_INT_COMBO_BOX (combo_box));
 
-  priv = GIMP_INT_COMBO_BOX_GET_PRIVATE (combo_box);
+  priv = GET_PRIVATE (combo_box);
 
   if (label == priv->label)
     return;
@@ -667,7 +666,7 @@ gimp_int_combo_box_get_label (GimpIntComboBox *combo_box)
 {
   g_return_val_if_fail (GIMP_IS_INT_COMBO_BOX (combo_box), NULL);
 
-  return GIMP_INT_COMBO_BOX_GET_PRIVATE (combo_box)->label;
+  return GET_PRIVATE (combo_box)->label;
 }
 
 /**
@@ -687,7 +686,7 @@ gimp_int_combo_box_set_layout (GimpIntComboBox       *combo_box,
 
   g_return_if_fail (GIMP_IS_INT_COMBO_BOX (combo_box));
 
-  priv = GIMP_INT_COMBO_BOX_GET_PRIVATE (combo_box);
+  priv = GET_PRIVATE (combo_box);
 
   if (layout == priv->layout)
     return;
@@ -715,7 +714,7 @@ gimp_int_combo_box_get_layout (GimpIntComboBox *combo_box)
   g_return_val_if_fail (GIMP_IS_INT_COMBO_BOX (combo_box),
                         GIMP_INT_COMBO_BOX_LAYOUT_ABBREVIATED);
 
-  return GIMP_INT_COMBO_BOX_GET_PRIVATE (combo_box)->layout;
+  return GET_PRIVATE (combo_box)->layout;
 }
 
 /**
@@ -744,7 +743,7 @@ gimp_int_combo_box_set_sensitivity (GimpIntComboBox        *combo_box,
 
   g_return_if_fail (GIMP_IS_INT_COMBO_BOX (combo_box));
 
-  priv = GIMP_INT_COMBO_BOX_GET_PRIVATE (combo_box);
+  priv = GET_PRIVATE (combo_box);
 
   if (priv->sensitivity_destroy)
     {
@@ -789,7 +788,7 @@ queue_resize_cell_view (GtkContainer *container)
 static void
 gimp_int_combo_box_create_cells (GimpIntComboBox *combo_box)
 {
-  GimpIntComboBoxPrivate *priv = GIMP_INT_COMBO_BOX_GET_PRIVATE (combo_box);
+  GimpIntComboBoxPrivate *priv = GET_PRIVATE (combo_box);
   GtkCellLayout          *layout;
 
   /*  menu layout  */
diff --git a/libgimpwidgets/gimpintcombobox.h b/libgimpwidgets/gimpintcombobox.h
index aec6888..9d1c84a 100644
--- a/libgimpwidgets/gimpintcombobox.h
+++ b/libgimpwidgets/gimpintcombobox.h
@@ -37,14 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_INT_COMBO_BOX_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_INT_COMBO_BOX, 
GimpIntComboBoxClass))
 
 
-typedef struct _GimpIntComboBoxClass  GimpIntComboBoxClass;
+typedef struct _GimpIntComboBoxPrivate GimpIntComboBoxPrivate;
+typedef struct _GimpIntComboBoxClass   GimpIntComboBoxClass;
 
 struct _GimpIntComboBox
 {
-  GtkComboBox parent_instance;
+  GtkComboBox             parent_instance;
 
-  /*< private >*/
-  gpointer    priv;
+  GimpIntComboBoxPrivate *priv;
 };
 
 struct _GimpIntComboBoxClass
@@ -56,6 +56,10 @@ struct _GimpIntComboBoxClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpintstore.c b/libgimpwidgets/gimpintstore.c
index fb6a885..f91e32c 100644
--- a/libgimpwidgets/gimpintstore.c
+++ b/libgimpwidgets/gimpintstore.c
@@ -48,10 +48,13 @@ enum
   PROP_USER_DATA_TYPE
 };
 
-typedef struct
+
+struct _GimpIntStorePrivate
 {
   GType  user_data_type;
-} GimpIntStorePrivate;
+};
+
+#define GET_PRIVATE(obj) (((GimpIntStore *) (obj))->priv)
 
 
 static void  gimp_int_store_tree_model_init (GtkTreeModelIface *iface);
@@ -79,9 +82,6 @@ G_DEFINE_TYPE_WITH_CODE (GimpIntStore, gimp_int_store, GTK_TYPE_LIST_STORE,
                          G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL,
                                                 gimp_int_store_tree_model_init))
 
-#define GIMP_INT_STORE_GET_PRIVATE(obj) \
-  G_TYPE_INSTANCE_GET_PRIVATE (obj, GIMP_TYPE_INT_STORE, GimpIntStorePrivate)
-
 #define parent_class gimp_int_store_parent_class
 
 static GtkTreeModelIface *parent_iface = NULL;
@@ -132,14 +132,16 @@ gimp_int_store_tree_model_init (GtkTreeModelIface *iface)
 static void
 gimp_int_store_init (GimpIntStore *store)
 {
-  store->empty_iter = NULL;
+  store->priv = G_TYPE_INSTANCE_GET_PRIVATE (store,
+                                             GIMP_TYPE_INT_STORE,
+                                             GimpIntStorePrivate);
 }
 
 static void
 gimp_int_store_constructed (GObject *object)
 {
   GimpIntStore        *store = GIMP_INT_STORE (object);
-  GimpIntStorePrivate *priv  = GIMP_INT_STORE_GET_PRIVATE (store);
+  GimpIntStorePrivate *priv  = GET_PRIVATE (store);
   GType                types[GIMP_INT_STORE_NUM_COLUMNS];
 
   G_OBJECT_CLASS (parent_class)->constructed (object);
@@ -178,7 +180,7 @@ gimp_int_store_set_property (GObject      *object,
                              const GValue *value,
                              GParamSpec   *pspec)
 {
-  GimpIntStorePrivate *priv = GIMP_INT_STORE_GET_PRIVATE (object);
+  GimpIntStorePrivate *priv = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -197,7 +199,7 @@ gimp_int_store_get_property (GObject    *object,
                              GValue     *value,
                              GParamSpec *pspec)
 {
-  GimpIntStorePrivate *priv = GIMP_INT_STORE_GET_PRIVATE (object);
+  GimpIntStorePrivate *priv = GET_PRIVATE (object);
 
   switch (property_id)
     {
diff --git a/libgimpwidgets/gimpintstore.h b/libgimpwidgets/gimpintstore.h
index 36049ad..a12fa50 100644
--- a/libgimpwidgets/gimpintstore.h
+++ b/libgimpwidgets/gimpintstore.h
@@ -61,13 +61,16 @@ typedef enum
 #define GIMP_INT_STORE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_INT_STORE, 
GimpIntStoreClass))
 
 
-typedef struct _GimpIntStoreClass  GimpIntStoreClass;
+typedef struct _GimpIntStorePrivate GimpIntStorePrivate;
+typedef struct _GimpIntStoreClass   GimpIntStoreClass;
 
 struct _GimpIntStore
 {
-  GtkListStore  parent_instance;
+  GtkListStore         parent_instance;
 
-  /*< private >*/
+  GimpIntStorePrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GtkTreeIter  *empty_iter;
 };
 
@@ -80,6 +83,10 @@ struct _GimpIntStoreClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpmemsizeentry.c b/libgimpwidgets/gimpmemsizeentry.c
index 405c926..123c331 100644
--- a/libgimpwidgets/gimpmemsizeentry.c
+++ b/libgimpwidgets/gimpmemsizeentry.c
@@ -51,8 +51,6 @@ enum
 };
 
 
-typedef struct _GimpMemsizeEntryPrivate GimpMemsizeEntryPrivate;
-
 struct _GimpMemsizeEntryPrivate
 {
   guint64        value;
@@ -66,9 +64,7 @@ struct _GimpMemsizeEntryPrivate
   GtkWidget     *menu;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_MEMSIZE_ENTRY, \
-                                                      GimpMemsizeEntryPrivate)
+#define GET_PRIVATE(obj) (((GimpMemsizeEntry *) (obj))->priv)
 
 
 static void  gimp_memsize_entry_finalize      (GObject          *object);
@@ -110,19 +106,14 @@ gimp_memsize_entry_class_init (GimpMemsizeEntryClass *klass)
 static void
 gimp_memsize_entry_init (GimpMemsizeEntry *entry)
 {
-  GimpMemsizeEntryPrivate *private = GET_PRIVATE (entry);
+  entry->priv = G_TYPE_INSTANCE_GET_PRIVATE (entry,
+                                             GIMP_TYPE_MEMSIZE_ENTRY,
+                                             GimpMemsizeEntryPrivate);
 
   gtk_orientable_set_orientation (GTK_ORIENTABLE (entry),
                                   GTK_ORIENTATION_HORIZONTAL);
 
   gtk_box_set_spacing (GTK_BOX (entry), 4);
-
-  private->value      = 0;
-  private->lower      = 0;
-  private->upper      = 0;
-  private->shift      = 0;
-  private->adjustment = NULL;
-  private->menu       = NULL;
 }
 
 static void
diff --git a/libgimpwidgets/gimpmemsizeentry.h b/libgimpwidgets/gimpmemsizeentry.h
index a231bd6..4fed8c9 100644
--- a/libgimpwidgets/gimpmemsizeentry.h
+++ b/libgimpwidgets/gimpmemsizeentry.h
@@ -37,11 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_MEMSIZE_ENTRY_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_MEMSIZE_ENTRY, 
GimpMemsizeEntryClass))
 
 
-typedef struct _GimpMemsizeEntryClass  GimpMemsizeEntryClass;
+typedef struct _GimpMemsizeEntryPrivate GimpMemsizeEntryPrivate;
+typedef struct _GimpMemsizeEntryClass   GimpMemsizeEntryClass;
 
 struct _GimpMemsizeEntry
 {
   GtkBox  parent_instance;
+
+  GimpMemsizeEntryPrivate *priv;
 };
 
 struct _GimpMemsizeEntryClass
@@ -55,6 +58,10 @@ struct _GimpMemsizeEntryClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpnumberpairentry.c b/libgimpwidgets/gimpnumberpairentry.c
index 5c1d53c..99b5e54 100644
--- a/libgimpwidgets/gimpnumberpairentry.c
+++ b/libgimpwidgets/gimpnumberpairentry.c
@@ -80,7 +80,8 @@ typedef enum
   PARSE_INVALID
 } ParseResult;
 
-typedef struct
+
+struct _GimpNumberPairEntryPrivate
 {
   /* The current number pair displayed in the widget. */
   gdouble      left_number;
@@ -117,10 +118,9 @@ typedef struct
   /* What range of values considered valid. */
   gdouble      min_valid_value;
   gdouble      max_valid_value;
-} GimpNumberPairEntryPrivate;
+};
 
-#define GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE(obj) \
-  ((GimpNumberPairEntryPrivate *) ((GimpNumberPairEntry *) (obj))->priv)
+#define GET_PRIVATE(obj) (((GimpNumberPairEntry *) (obj))->priv)
 
 
 static void         gimp_number_pair_entry_finalize          (GObject             *entry);
@@ -310,7 +310,7 @@ gimp_number_pair_entry_init (GimpNumberPairEntry *entry)
                                              GIMP_TYPE_NUMBER_PAIR_ENTRY,
                                              GimpNumberPairEntryPrivate);
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   priv->left_number          = 1.0;
   priv->right_number         = 1.0;
@@ -348,9 +348,7 @@ gimp_number_pair_entry_init (GimpNumberPairEntry *entry)
 static void
 gimp_number_pair_entry_finalize (GObject *object)
 {
-  GimpNumberPairEntryPrivate *priv;
-
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (object);
+  GimpNumberPairEntryPrivate *priv = GET_PRIVATE (object);
 
   if (priv->separators)
     {
@@ -506,7 +504,7 @@ gimp_number_pair_entry_get_ratio (GimpNumberPairEntry *entry)
 
   g_return_val_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry), 1.0);
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   return priv->left_number / priv->right_number;
 }
@@ -538,7 +536,7 @@ gimp_number_pair_entry_set_values (GimpNumberPairEntry *entry,
 
   g_return_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry));
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   /* Store current values */
 
@@ -616,7 +614,7 @@ gimp_number_pair_entry_get_values (GimpNumberPairEntry *entry,
 
   g_return_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry));
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   if (left != NULL)
     *left  = priv->left_number;
@@ -648,7 +646,7 @@ gimp_number_pair_entry_set_default_text (GimpNumberPairEntry *entry,
 
   g_return_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry));
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   g_free (priv->default_text);
   priv->default_text = g_strdup (string);
@@ -674,7 +672,7 @@ gimp_number_pair_entry_get_default_text (GimpNumberPairEntry *entry)
 
   g_return_val_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry), NULL);
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   return priv->default_text;
 }
@@ -701,7 +699,7 @@ gimp_number_pair_entry_set_aspect (GimpNumberPairEntry *entry,
   if (gimp_number_pair_entry_get_aspect (entry) == aspect)
     return;
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   switch (aspect)
     {
@@ -737,7 +735,7 @@ gimp_number_pair_entry_get_aspect (GimpNumberPairEntry *entry)
 
   g_return_val_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry), GIMP_ASPECT_SQUARE);
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   if (priv->left_number > priv->right_number)
     {
@@ -757,7 +755,7 @@ static void
 gimp_number_pair_entry_modify_font (GimpNumberPairEntry *entry,
                                     gboolean             italic)
 {
-  GimpNumberPairEntryPrivate *priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  GimpNumberPairEntryPrivate *priv = GET_PRIVATE (entry);
   PangoContext               *context;
   PangoFontDescription       *font_desc;
 
@@ -804,7 +802,7 @@ gimp_number_pair_entry_set_user_override (GimpNumberPairEntry *entry,
 
   g_return_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry));
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   priv->user_override = user_override;
 
@@ -835,7 +833,7 @@ gimp_number_pair_entry_get_user_override (GimpNumberPairEntry *entry)
 
   g_return_val_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry), FALSE);
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   return priv->user_override;
 }
@@ -858,12 +856,10 @@ static gboolean
 gimp_number_pair_entry_events (GtkWidget *widget,
                                GdkEvent  *event)
 {
-  GimpNumberPairEntry        *entry;
-  GimpNumberPairEntryPrivate *priv;
+  GimpNumberPairEntry        *entry = GIMP_NUMBER_PAIR_ENTRY (widget);
+  GimpNumberPairEntryPrivate *priv  = GET_PRIVATE (entry);
   gboolean                    force_user_override;
 
-  entry               = GIMP_NUMBER_PAIR_ENTRY (widget);
-  priv                = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
   force_user_override = FALSE;
 
   switch (event->type)
@@ -951,7 +947,7 @@ gimp_number_pair_entry_strdup_number_pair_string (GimpNumberPairEntry *entry,
                                                   gdouble              left_number,
                                                   gdouble              right_number)
 {
-  GimpNumberPairEntryPrivate *priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  GimpNumberPairEntryPrivate *priv = GET_PRIVATE (entry);
   gchar                       sep[8];
   gint                        len;
 
@@ -968,7 +964,7 @@ gimp_number_pair_entry_strdup_number_pair_string (GimpNumberPairEntry *entry,
 static void
 gimp_number_pair_entry_update_text (GimpNumberPairEntry *entry)
 {
-  GimpNumberPairEntryPrivate *priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  GimpNumberPairEntryPrivate *priv = GET_PRIVATE (entry);
   gchar                      *buffer;
 
   if (! priv->user_override &&
@@ -1002,7 +998,7 @@ static gboolean
 gimp_number_pair_entry_valid_separator (GimpNumberPairEntry *entry,
                                         gunichar             candidate)
 {
-  GimpNumberPairEntryPrivate *priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  GimpNumberPairEntryPrivate *priv = GET_PRIVATE (entry);
 
   if (priv->num_separators > 0)
     {
@@ -1026,7 +1022,7 @@ gimp_number_pair_entry_parse_text (GimpNumberPairEntry *entry,
                                    gdouble             *left_value,
                                    gdouble             *right_value)
 {
-  GimpNumberPairEntryPrivate *priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  GimpNumberPairEntryPrivate *priv = GET_PRIVATE (entry);
 
   gdouble   new_left_number;
   gdouble   new_right_number;
@@ -1114,9 +1110,7 @@ gimp_number_pair_entry_set_property (GObject      *object,
                                      GParamSpec   *pspec)
 {
   GimpNumberPairEntry        *entry = GIMP_NUMBER_PAIR_ENTRY (object);
-  GimpNumberPairEntryPrivate *priv;
-
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  GimpNumberPairEntryPrivate *priv  = GET_PRIVATE (entry);
 
   switch (property_id)
     {
@@ -1185,9 +1179,7 @@ gimp_number_pair_entry_get_property (GObject    *object,
                                      GParamSpec *pspec)
 {
   GimpNumberPairEntry        *entry = GIMP_NUMBER_PAIR_ENTRY (object);
-  GimpNumberPairEntryPrivate *priv;
-
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  GimpNumberPairEntryPrivate *priv  = GET_PRIVATE (entry);
 
   switch (property_id)
     {
@@ -1253,7 +1245,7 @@ gimp_number_pair_entry_set_default_values (GimpNumberPairEntry *entry,
 
   g_return_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry));
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   priv->default_left_number  = left;
   priv->default_right_number = right;
@@ -1283,7 +1275,7 @@ gimp_number_pair_entry_get_default_values (GimpNumberPairEntry *entry,
 
   g_return_if_fail (GIMP_IS_NUMBER_PAIR_ENTRY (entry));
 
-  priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  priv = GET_PRIVATE (entry);
 
   if (left != NULL)
     *left = priv->default_left_number;
@@ -1297,7 +1289,7 @@ gimp_number_pair_entry_numbers_in_range (GimpNumberPairEntry *entry,
                                          gdouble              left_number,
                                          gdouble              right_number)
 {
-  GimpNumberPairEntryPrivate *priv = GIMP_NUMBER_PAIR_ENTRY_GET_PRIVATE (entry);
+  GimpNumberPairEntryPrivate *priv = GET_PRIVATE (entry);
 
   return (left_number  >= priv->min_valid_value &&
           left_number  <= priv->max_valid_value &&
diff --git a/libgimpwidgets/gimpnumberpairentry.h b/libgimpwidgets/gimpnumberpairentry.h
index caa070d..908ae9c 100644
--- a/libgimpwidgets/gimpnumberpairentry.h
+++ b/libgimpwidgets/gimpnumberpairentry.h
@@ -39,14 +39,15 @@ G_BEGIN_DECLS
 #define GIMP_NUMBER_PAIR_ENTRY_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GIMP_TYPE_NUMBER_PAIR_AREA, GimpNumberPairEntryClass))
 
 
+typedef struct _GimpNumberPairEntryPrivate GimpNumberPairEntryPrivate;
 typedef struct _GimpNumberPairEntryClass   GimpNumberPairEntryClass;
 
 
 struct _GimpNumberPairEntry
 {
-  GtkEntry   parent_instance;
+  GtkEntry                    parent_instance;
 
-  gpointer   priv;
+  GimpNumberPairEntryPrivate *priv;
 };
 
 struct _GimpNumberPairEntryClass
@@ -61,6 +62,10 @@ struct _GimpNumberPairEntryClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpoffsetarea.c b/libgimpwidgets/gimpoffsetarea.c
index d5c3a77..dd1ba27 100644
--- a/libgimpwidgets/gimpoffsetarea.c
+++ b/libgimpwidgets/gimpoffsetarea.c
@@ -48,8 +48,6 @@ enum
 };
 
 
-typedef struct _GimpOffsetAreaPrivate GimpOffsetAreaPrivate;
-
 struct _GimpOffsetAreaPrivate
 {
   gint    orig_width;
@@ -62,9 +60,7 @@ struct _GimpOffsetAreaPrivate
   gdouble display_ratio_y;
 };
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_OFFSET_AREA, \
-                                                      GimpOffsetAreaPrivate)
+#define GET_PRIVATE(obj) (((GimpOffsetArea *) (obj))->priv)
 
 
 static void      gimp_offset_area_resize        (GimpOffsetArea *area);
@@ -113,14 +109,14 @@ gimp_offset_area_class_init (GimpOffsetAreaClass *klass)
 static void
 gimp_offset_area_init (GimpOffsetArea *area)
 {
-  GimpOffsetAreaPrivate *private = GET_PRIVATE (area);
+  GimpOffsetAreaPrivate *private;
+
+  area->priv = G_TYPE_INSTANCE_GET_PRIVATE (area,
+                                            GIMP_TYPE_OFFSET_AREA,
+                                            GimpOffsetAreaPrivate);
+
+  private = GET_PRIVATE (area);
 
-  private->orig_width      = 0;
-  private->orig_height     = 0;
-  private->width           = 0;
-  private->height          = 0;
-  private->offset_x        = 0;
-  private->offset_y        = 0;
   private->display_ratio_x = 1.0;
   private->display_ratio_y = 1.0;
 
diff --git a/libgimpwidgets/gimpoffsetarea.h b/libgimpwidgets/gimpoffsetarea.h
index acd1d23..744374f 100644
--- a/libgimpwidgets/gimpoffsetarea.h
+++ b/libgimpwidgets/gimpoffsetarea.h
@@ -39,11 +39,14 @@ G_BEGIN_DECLS
 #define GIMP_OFFSET_AREA_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_OFFSET_AREA, 
GimpOffsetAreaClass))
 
 
-typedef struct _GimpOffsetAreaClass  GimpOffsetAreaClass;
+typedef struct _GimpOffsetAreaPrivate GimpOffsetAreaPrivate;
+typedef struct _GimpOffsetAreaClass   GimpOffsetAreaClass;
 
 struct _GimpOffsetArea
 {
-  GtkDrawingArea  parent_instance;
+  GtkDrawingArea         parent_instance;
+
+  GimpOffsetAreaPrivate *priv;
 };
 
 struct _GimpOffsetAreaClass
@@ -59,6 +62,10 @@ struct _GimpOffsetAreaClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimppageselector.c b/libgimpwidgets/gimppageselector.c
index e5e0f71..6a1063a 100644
--- a/libgimpwidgets/gimppageselector.c
+++ b/libgimpwidgets/gimppageselector.c
@@ -70,7 +70,7 @@ enum
 };
 
 
-typedef struct
+struct _GimpPageSelectorPrivate
 {
   gint                    n_pages;
   GimpPageSelectorTarget  target;
@@ -82,10 +82,9 @@ typedef struct
   GtkWidget              *range_entry;
 
   GdkPixbuf              *default_thumbnail;
-} GimpPageSelectorPrivate;
+};
 
-#define GIMP_PAGE_SELECTOR_GET_PRIVATE(obj) \
-  ((GimpPageSelectorPrivate *) ((GimpPageSelector *) (obj))->priv)
+#define GET_PRIVATE(obj) (((GimpPageSelector *) (obj))->priv)
 
 
 static void   gimp_page_selector_finalize          (GObject          *object);
@@ -222,7 +221,7 @@ gimp_page_selector_init (GimpPageSelector *selector)
                                                 GIMP_TYPE_PAGE_SELECTOR,
                                                 GimpPageSelectorPrivate);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   priv->n_pages = 0;
   priv->target  = GIMP_PAGE_SELECTOR_TARGET_LAYERS;
@@ -338,7 +337,7 @@ gimp_page_selector_init (GimpPageSelector *selector)
 static void
 gimp_page_selector_finalize (GObject *object)
 {
-  GimpPageSelectorPrivate *priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (object);
+  GimpPageSelectorPrivate *priv = GET_PRIVATE (object);
 
   g_clear_object (&priv->default_thumbnail);
 
@@ -351,7 +350,7 @@ gimp_page_selector_get_property (GObject    *object,
                                  GValue     *value,
                                  GParamSpec *pspec)
 {
-  GimpPageSelectorPrivate *priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (object);
+  GimpPageSelectorPrivate *priv = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -374,7 +373,7 @@ gimp_page_selector_set_property (GObject      *object,
                                  GParamSpec   *pspec)
 {
   GimpPageSelector        *selector = GIMP_PAGE_SELECTOR (object);
-  GimpPageSelectorPrivate *priv     = GIMP_PAGE_SELECTOR_GET_PRIVATE (object);
+  GimpPageSelectorPrivate *priv     = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -426,7 +425,7 @@ gimp_page_selector_set_n_pages (GimpPageSelector *selector,
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
   g_return_if_fail (n_pages >= 0);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   if (n_pages != priv->n_pages)
     {
@@ -483,7 +482,7 @@ gimp_page_selector_get_n_pages (GimpPageSelector *selector)
 
   g_return_val_if_fail (GIMP_IS_PAGE_SELECTOR (selector), 0);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   return priv->n_pages;
 }
@@ -504,7 +503,7 @@ gimp_page_selector_set_target (GimpPageSelector       *selector,
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
   g_return_if_fail (target <= GIMP_PAGE_SELECTOR_TARGET_IMAGES);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   if (target != priv->target)
     {
@@ -530,7 +529,7 @@ gimp_page_selector_get_target (GimpPageSelector *selector)
   g_return_val_if_fail (GIMP_IS_PAGE_SELECTOR (selector),
                         GIMP_PAGE_SELECTOR_TARGET_LAYERS);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   return priv->target;
 }
@@ -557,7 +556,7 @@ gimp_page_selector_set_page_thumbnail (GimpPageSelector *selector,
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
   g_return_if_fail (thumbnail == NULL || GDK_IS_PIXBUF (thumbnail));
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   g_return_if_fail (page_no >= 0 && page_no < priv->n_pages);
 
@@ -601,7 +600,7 @@ gimp_page_selector_get_page_thumbnail (GimpPageSelector *selector,
 
   g_return_val_if_fail (GIMP_IS_PAGE_SELECTOR (selector), NULL);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   g_return_val_if_fail (page_no >= 0 && page_no < priv->n_pages, NULL);
 
@@ -641,7 +640,7 @@ gimp_page_selector_set_page_label (GimpPageSelector *selector,
 
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   g_return_if_fail (page_no >= 0 && page_no < priv->n_pages);
 
@@ -683,7 +682,7 @@ gimp_page_selector_get_page_label (GimpPageSelector *selector,
 
   g_return_val_if_fail (GIMP_IS_PAGE_SELECTOR (selector), NULL);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   g_return_val_if_fail (page_no >= 0 && page_no < priv->n_pages, NULL);
 
@@ -718,7 +717,7 @@ gimp_page_selector_select_all (GimpPageSelector *selector)
 
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   gtk_icon_view_select_all (GTK_ICON_VIEW (priv->view));
 }
@@ -738,7 +737,7 @@ gimp_page_selector_unselect_all (GimpPageSelector *selector)
 
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   gtk_icon_view_unselect_all (GTK_ICON_VIEW (priv->view));
 }
@@ -762,7 +761,7 @@ gimp_page_selector_select_page (GimpPageSelector *selector,
 
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   g_return_if_fail (page_no >= 0 && page_no < priv->n_pages);
 
@@ -794,7 +793,7 @@ gimp_page_selector_unselect_page (GimpPageSelector *selector,
 
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   g_return_if_fail (page_no >= 0 && page_no < priv->n_pages);
 
@@ -827,7 +826,7 @@ gimp_page_selector_page_is_selected (GimpPageSelector *selector,
 
   g_return_val_if_fail (GIMP_IS_PAGE_SELECTOR (selector), FALSE);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   g_return_val_if_fail (page_no >= 0 && page_no < priv->n_pages, FALSE);
 
@@ -866,7 +865,7 @@ gimp_page_selector_get_selected_pages (GimpPageSelector *selector,
   g_return_val_if_fail (GIMP_IS_PAGE_SELECTOR (selector), NULL);
   g_return_val_if_fail (n_selected_pages != NULL, NULL);
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   selected = gtk_icon_view_get_selected_items (GTK_ICON_VIEW (priv->view));
 
@@ -912,7 +911,7 @@ gimp_page_selector_select_range (GimpPageSelector *selector,
 
   g_return_if_fail (GIMP_IS_PAGE_SELECTOR (selector));
 
-  priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  priv = GET_PRIVATE (selector);
 
   if (! range)
     range = "";
@@ -1054,7 +1053,7 @@ static void
 gimp_page_selector_selection_changed (GtkIconView      *icon_view,
                                       GimpPageSelector *selector)
 {
-  GimpPageSelectorPrivate *priv = GIMP_PAGE_SELECTOR_GET_PRIVATE (selector);
+  GimpPageSelectorPrivate *priv = GET_PRIVATE (selector);
   GList                   *selected;
   gint                     n_selected;
   gchar                   *range;
diff --git a/libgimpwidgets/gimppageselector.h b/libgimpwidgets/gimppageselector.h
index 454a881..8a6d26d 100644
--- a/libgimpwidgets/gimppageselector.h
+++ b/libgimpwidgets/gimppageselector.h
@@ -36,13 +36,14 @@ G_BEGIN_DECLS
 #define GIMP_PAGE_SELECTOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PAGE_SELECTOR, 
GimpPageSelectorClass))
 
 
-typedef struct _GimpPageSelectorClass  GimpPageSelectorClass;
+typedef struct _GimpPageSelectorPrivate GimpPageSelectorPrivate;
+typedef struct _GimpPageSelectorClass   GimpPageSelectorClass;
 
 struct _GimpPageSelector
 {
-  GtkBox    parent_instance;
+  GtkBox                   parent_instance;
 
-  gpointer  priv;
+  GimpPageSelectorPrivate *priv;
 };
 
 struct _GimpPageSelectorClass
@@ -57,6 +58,10 @@ struct _GimpPageSelectorClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimppatheditor.h b/libgimpwidgets/gimppatheditor.h
index 54ad032..ff65d8f 100644
--- a/libgimpwidgets/gimppatheditor.h
+++ b/libgimpwidgets/gimppatheditor.h
@@ -39,12 +39,16 @@ G_BEGIN_DECLS
 #define GIMP_PATH_EDITOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PATH_EDITOR, 
GimpPathEditorClass))
 
 
-typedef struct _GimpPathEditorClass  GimpPathEditorClass;
+typedef struct _GimpPathEditorPrivate GimpPathEditorPrivate;
+typedef struct _GimpPathEditorClass   GimpPathEditorClass;
 
 struct _GimpPathEditor
 {
-  GtkBox             parent_instance;
+  GtkBox                 parent_instance;
 
+  GimpPathEditorPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GtkWidget         *upper_hbox;
 
   GtkWidget         *new_button;
@@ -76,6 +80,10 @@ struct _GimpPathEditorClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimppickbutton.h b/libgimpwidgets/gimppickbutton.h
index bfd16a8..e7d6923 100644
--- a/libgimpwidgets/gimppickbutton.h
+++ b/libgimpwidgets/gimppickbutton.h
@@ -56,6 +56,10 @@ struct _GimpPickButtonClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimppreview.c b/libgimpwidgets/gimppreview.c
index f707dc8..bdaad98 100644
--- a/libgimpwidgets/gimppreview.c
+++ b/libgimpwidgets/gimppreview.c
@@ -59,12 +59,13 @@ enum
   PROP_UPDATE
 };
 
-typedef struct
+
+struct _GimpPreviewPrivate
 {
   GtkWidget *controls;
-} GimpPreviewPrivate;
+};
 
-#define GIMP_PREVIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GIMP_TYPE_PREVIEW, 
GimpPreviewPrivate))
+#define GET_PRIVATE(obj) (((GimpPreview *) (obj))->priv)
 
 
 static void      gimp_preview_class_init          (GimpPreviewClass *klass);
@@ -114,6 +115,8 @@ static void      gimp_preview_real_untransform    (GimpPreview      *preview,
                                                    gint             *dest_y);
 
 
+/* FIXME G_DEFINE_TYPE */
+
 static guint preview_signals[LAST_SIGNAL] = { 0 };
 
 static GtkBoxClass *parent_class = NULL;
@@ -202,10 +205,16 @@ gimp_preview_class_init (GimpPreviewClass *klass)
 static void
 gimp_preview_init (GimpPreview *preview)
 {
-  GimpPreviewPrivate *priv = GIMP_PREVIEW_GET_PRIVATE (preview);
+  GimpPreviewPrivate *priv;
   GtkWidget          *frame;
   gdouble             xalign = 0.0;
 
+  preview->priv = G_TYPE_INSTANCE_GET_PRIVATE (preview,
+                                               GIMP_TYPE_PREVIEW,
+                                               GimpPreviewPrivate);
+
+  priv = preview->priv;
+
   gtk_orientable_set_orientation (GTK_ORIENTABLE (preview),
                                   GTK_ORIENTATION_VERTICAL);
 
@@ -853,5 +862,5 @@ gimp_preview_get_controls (GimpPreview *preview)
 {
   g_return_val_if_fail (GIMP_IS_PREVIEW (preview), NULL);
 
-  return GIMP_PREVIEW_GET_PRIVATE (preview)->controls;
+  return GET_PRIVATE (preview)->controls;
 }
diff --git a/libgimpwidgets/gimppreview.h b/libgimpwidgets/gimppreview.h
index 71a5241..d044556 100644
--- a/libgimpwidgets/gimppreview.h
+++ b/libgimpwidgets/gimppreview.h
@@ -39,12 +39,16 @@ G_BEGIN_DECLS
 #define GIMP_PREVIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PREVIEW, GimpPreviewClass))
 
 
-typedef struct _GimpPreviewClass  GimpPreviewClass;
+typedef struct _GimpPreviewPrivate GimpPreviewPrivate;
+typedef struct _GimpPreviewClass   GimpPreviewClass;
 
 struct _GimpPreview
 {
-  GtkBox        parent_instance;
+  GtkBox              parent_instance;
 
+  GimpPreviewPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   gboolean      update_preview;
 
   /*< protected >*/
@@ -78,10 +82,6 @@ struct _GimpPreviewClass
                           gint             rowstride);
   void   (* set_cursor)  (GimpPreview     *preview);
 
-  /* signal */
-  void   (* invalidated) (GimpPreview     *preview);
-
-  /* virtual methods */
   void   (* transform)   (GimpPreview     *preview,
                           gint             src_x,
                           gint             src_y,
@@ -93,9 +93,18 @@ struct _GimpPreviewClass
                           gint            *dest_x,
                           gint            *dest_y);
 
+  /* signal */
+  void   (* invalidated) (GimpPreview     *preview);
+
   /* Padding for future expansion */
+  void (* _gimp_reserved1) (void);
+  void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimppreviewarea.c b/libgimpwidgets/gimppreviewarea.c
index a5b00e8..9c17656 100644
--- a/libgimpwidgets/gimppreviewarea.c
+++ b/libgimpwidgets/gimppreviewarea.c
@@ -61,18 +61,13 @@ enum
     (((area)->offset_x + (col)) & size)) ? dark : light)
 
 
-typedef struct _GimpPreviewAreaPrivate GimpPreviewAreaPrivate;
-
 struct _GimpPreviewAreaPrivate
 {
   GimpColorConfig    *config;
   GimpColorTransform *transform;
 };
 
-#define GET_PRIVATE(obj) \
-        G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                     GIMP_TYPE_PREVIEW_AREA, \
-                                     GimpPreviewAreaPrivate)
+#define GET_PRIVATE(obj) (((GimpPreviewArea *) (obj))->priv)
 
 
 static void      gimp_preview_area_dispose           (GObject          *object);
@@ -143,15 +138,12 @@ gimp_preview_area_class_init (GimpPreviewAreaClass *klass)
 static void
 gimp_preview_area_init (GimpPreviewArea *area)
 {
+  area->priv = G_TYPE_INSTANCE_GET_PRIVATE (area,
+                                            GIMP_TYPE_PREVIEW_AREA,
+                                            GimpPreviewAreaPrivate);
+
   area->check_size = DEFAULT_CHECK_SIZE;
   area->check_type = DEFAULT_CHECK_TYPE;
-  area->buf        = NULL;
-  area->colormap   = NULL;
-  area->offset_x   = 0;
-  area->offset_y   = 0;
-  area->width      = 0;
-  area->height     = 0;
-  area->rowstride  = 0;
   area->max_width  = -1;
   area->max_height = -1;
 
diff --git a/libgimpwidgets/gimppreviewarea.h b/libgimpwidgets/gimppreviewarea.h
index 256a9fb..9d7e471 100644
--- a/libgimpwidgets/gimppreviewarea.h
+++ b/libgimpwidgets/gimppreviewarea.h
@@ -34,12 +34,16 @@ G_BEGIN_DECLS
 #define GIMP_PREVIEW_AREA_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PREVIEW_AREA, 
GimpPreviewArea))
 
 
-typedef struct _GimpPreviewAreaClass  GimpPreviewAreaClass;
+typedef struct _GimpPreviewAreaPrivate GimpPreviewAreaPrivate;
+typedef struct _GimpPreviewAreaClass   GimpPreviewAreaClass;
 
 struct _GimpPreviewArea
 {
-  GtkDrawingArea   parent_instance;
+  GtkDrawingArea          parent_instance;
 
+  GimpPreviewAreaPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GimpCheckSize    check_size;
   GimpCheckType    check_type;
   gint             width;
@@ -62,6 +66,10 @@ struct _GimpPreviewAreaClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpruler.c b/libgimpwidgets/gimpruler.c
index b203a17..41ef8c2 100644
--- a/libgimpwidgets/gimpruler.c
+++ b/libgimpwidgets/gimpruler.c
@@ -58,7 +58,7 @@ enum
 /* All distances below are in 1/72nd's of an inch. (According to
  * Adobe that's a point, but points are really 1/72.27 in.)
  */
-typedef struct
+struct _GimpRulerPrivate
 {
   GtkOrientation   orientation;
   GimpUnit         unit;
@@ -75,10 +75,9 @@ typedef struct
   PangoLayout     *layout;
 
   GList           *track_widgets;
-} GimpRulerPrivate;
+};
 
-#define GIMP_RULER_GET_PRIVATE(ruler) \
-  G_TYPE_INSTANCE_GET_PRIVATE (ruler, GIMP_TYPE_RULER, GimpRulerPrivate)
+#define GET_PRIVATE(obj) (((GimpRuler *) (obj))->priv)
 
 
 typedef struct
@@ -246,32 +245,25 @@ gimp_ruler_class_init (GimpRulerClass *klass)
 static void
 gimp_ruler_init (GimpRuler *ruler)
 {
-  GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv;
 
-  gtk_widget_set_has_window (GTK_WIDGET (ruler), FALSE);
+  ruler->priv = G_TYPE_INSTANCE_GET_PRIVATE (ruler,
+                                             GIMP_TYPE_RULER,
+                                             GimpRulerPrivate);
 
-  priv->orientation         = GTK_ORIENTATION_HORIZONTAL;
-  priv->unit                = GIMP_UNIT_PIXEL;
-  priv->lower               = 0;
-  priv->upper               = 0;
-  priv->position            = 0;
-  priv->max_size            = 0;
+  priv = ruler->priv;
 
-  priv->backing_store       = NULL;
-  priv->backing_store_valid = FALSE;
+  gtk_widget_set_has_window (GTK_WIDGET (ruler), FALSE);
 
-  priv->last_pos_rect.x      = 0;
-  priv->last_pos_rect.y      = 0;
-  priv->last_pos_rect.width  = 0;
-  priv->last_pos_rect.height = 0;
-  priv->pos_redraw_idle_id   = 0;
+  priv->orientation = GTK_ORIENTATION_HORIZONTAL;
+  priv->unit        = GIMP_UNIT_PIXEL;
 }
 
 static void
 gimp_ruler_dispose (GObject *object)
 {
   GimpRuler        *ruler = GIMP_RULER (object);
-  GimpRulerPrivate *priv  = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv  = GET_PRIVATE (ruler);
 
   while (priv->track_widgets)
     gimp_ruler_remove_track_widget (ruler, priv->track_widgets->data);
@@ -292,7 +284,7 @@ gimp_ruler_set_property (GObject      *object,
                          GParamSpec   *pspec)
 {
   GimpRuler        *ruler = GIMP_RULER (object);
-  GimpRulerPrivate *priv  = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv  = GET_PRIVATE (ruler);
 
   switch (prop_id)
     {
@@ -342,7 +334,7 @@ gimp_ruler_get_property (GObject    *object,
                          GParamSpec *pspec)
 {
   GimpRuler        *ruler = GIMP_RULER (object);
-  GimpRulerPrivate *priv  = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv  = GET_PRIVATE (ruler);
 
   switch (prop_id)
     {
@@ -399,7 +391,7 @@ gimp_ruler_update_position (GimpRuler *ruler,
                             gdouble    x,
                             gdouble    y)
 {
-  GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv = GET_PRIVATE (ruler);
   GtkAllocation     allocation;
   gdouble           lower;
   gdouble           upper;
@@ -537,7 +529,7 @@ gimp_ruler_add_track_widget (GimpRuler *ruler,
   g_return_if_fail (GIMP_IS_RULER (ruler));
   g_return_if_fail (GTK_IS_WIDGET (ruler));
 
-  priv = GIMP_RULER_GET_PRIVATE (ruler);
+  priv = GET_PRIVATE (ruler);
 
   g_return_if_fail (g_list_find (priv->track_widgets, widget) == NULL);
 
@@ -570,7 +562,7 @@ gimp_ruler_remove_track_widget (GimpRuler *ruler,
   g_return_if_fail (GIMP_IS_RULER (ruler));
   g_return_if_fail (GTK_IS_WIDGET (ruler));
 
-  priv = GIMP_RULER_GET_PRIVATE (ruler);
+  priv = GET_PRIVATE (ruler);
 
   g_return_if_fail (g_list_find (priv->track_widgets, widget) != NULL);
 
@@ -601,7 +593,7 @@ gimp_ruler_set_unit (GimpRuler *ruler,
 
   g_return_if_fail (GIMP_IS_RULER (ruler));
 
-  priv = GIMP_RULER_GET_PRIVATE (ruler);
+  priv = GET_PRIVATE (ruler);
 
   if (priv->unit != unit)
     {
@@ -626,7 +618,7 @@ gimp_ruler_get_unit (GimpRuler *ruler)
 {
   g_return_val_if_fail (GIMP_IS_RULER (ruler), 0);
 
-  return GIMP_RULER_GET_PRIVATE (ruler)->unit;
+  return GET_PRIVATE (ruler)->unit;
 }
 
 /**
@@ -646,7 +638,7 @@ gimp_ruler_set_position (GimpRuler *ruler,
 
   g_return_if_fail (GIMP_IS_RULER (ruler));
 
-  priv = GIMP_RULER_GET_PRIVATE (ruler);
+  priv = GET_PRIVATE (ruler);
 
   if (priv->position != position)
     {
@@ -705,7 +697,7 @@ gimp_ruler_get_position (GimpRuler *ruler)
 {
   g_return_val_if_fail (GIMP_IS_RULER (ruler), 0.0);
 
-  return GIMP_RULER_GET_PRIVATE (ruler)->position;
+  return GET_PRIVATE (ruler)->position;
 }
 
 /**
@@ -730,7 +722,7 @@ gimp_ruler_set_range (GimpRuler *ruler,
 
   g_return_if_fail (GIMP_IS_RULER (ruler));
 
-  priv = GIMP_RULER_GET_PRIVATE (ruler);
+  priv = GET_PRIVATE (ruler);
 
   g_object_freeze_notify (G_OBJECT (ruler));
   if (priv->lower != lower)
@@ -777,7 +769,7 @@ gimp_ruler_get_range (GimpRuler *ruler,
 
   g_return_if_fail (GIMP_IS_RULER (ruler));
 
-  priv = GIMP_RULER_GET_PRIVATE (ruler);
+  priv = GET_PRIVATE (ruler);
 
   if (lower)
     *lower = priv->lower;
@@ -791,7 +783,7 @@ static void
 gimp_ruler_realize (GtkWidget *widget)
 {
   GimpRuler        *ruler = GIMP_RULER (widget);
-  GimpRulerPrivate *priv  = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv  = GET_PRIVATE (ruler);
   GtkAllocation     allocation;
   GdkWindowAttr     attributes;
   gint              attributes_mask;
@@ -823,7 +815,7 @@ static void
 gimp_ruler_unrealize (GtkWidget *widget)
 {
   GimpRuler        *ruler = GIMP_RULER (widget);
-  GimpRulerPrivate *priv  = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv  = GET_PRIVATE (ruler);
 
   g_clear_pointer (&priv->backing_store, cairo_surface_destroy);
   priv->backing_store_valid = FALSE;
@@ -838,7 +830,7 @@ gimp_ruler_unrealize (GtkWidget *widget)
 static void
 gimp_ruler_map (GtkWidget *widget)
 {
-  GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (widget);
+  GimpRulerPrivate *priv = GET_PRIVATE (widget);
 
   GTK_WIDGET_CLASS (parent_class)->map (widget);
 
@@ -849,7 +841,7 @@ gimp_ruler_map (GtkWidget *widget)
 static void
 gimp_ruler_unmap (GtkWidget *widget)
 {
-  GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (widget);
+  GimpRulerPrivate *priv = GET_PRIVATE (widget);
 
   if (priv->input_window)
     gdk_window_hide (priv->input_window);
@@ -862,7 +854,7 @@ gimp_ruler_size_allocate (GtkWidget     *widget,
                           GtkAllocation *allocation)
 {
   GimpRuler        *ruler = GIMP_RULER (widget);
-  GimpRulerPrivate *priv  = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv  = GET_PRIVATE (ruler);
   GtkAllocation     widget_allocation;
   gboolean          resized;
 
@@ -888,7 +880,7 @@ static void
 gimp_ruler_size_request (GtkWidget      *widget,
                          GtkRequisition *requisition)
 {
-  GimpRulerPrivate *priv    = GIMP_RULER_GET_PRIVATE (widget);
+  GimpRulerPrivate *priv    = GET_PRIVATE (widget);
   GtkStyleContext  *context = gtk_widget_get_style_context (widget);
   PangoLayout      *layout;
   PangoRectangle    ink_rect;
@@ -944,7 +936,7 @@ gimp_ruler_get_preferred_height (GtkWidget *widget,
 static void
 gimp_ruler_style_updated (GtkWidget *widget)
 {
-  GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (widget);
+  GimpRulerPrivate *priv = GET_PRIVATE (widget);
 
   GTK_WIDGET_CLASS (gimp_ruler_parent_class)->style_updated (widget);
 
@@ -969,7 +961,7 @@ gimp_ruler_draw (GtkWidget *widget,
                  cairo_t   *cr)
 {
   GimpRuler        *ruler   = GIMP_RULER (widget);
-  GimpRulerPrivate *priv    = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv    = GET_PRIVATE (ruler);
   GtkStyleContext  *context = gtk_widget_get_style_context (widget);
   GtkAllocation     allocation;
 
@@ -993,7 +985,7 @@ gimp_ruler_draw_ticks (GimpRuler *ruler)
 {
   GtkWidget         *widget  = GTK_WIDGET (ruler);
   GtkStyleContext   *context = gtk_widget_get_style_context (widget);
-  GimpRulerPrivate  *priv    = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate  *priv    = GET_PRIVATE (ruler);
   GtkAllocation      allocation;
   GtkBorder          border;
   GdkRGBA            color;
@@ -1201,7 +1193,7 @@ gimp_ruler_get_pos_rect (GimpRuler *ruler,
 {
   GtkWidget        *widget  = GTK_WIDGET (ruler);
   GtkStyleContext  *context = gtk_widget_get_style_context (widget);
-  GimpRulerPrivate *priv    = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv    = GET_PRIVATE (ruler);
   GtkAllocation     allocation;
   GtkBorder         border;
   gint              width, height;
@@ -1258,7 +1250,7 @@ static gboolean
 gimp_ruler_idle_queue_pos_redraw (gpointer data)
 {
   GimpRuler        *ruler = data;
-  GimpRulerPrivate *priv  = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv  = GET_PRIVATE (ruler);
 
   gimp_ruler_queue_pos_redraw (ruler);
 
@@ -1270,7 +1262,7 @@ gimp_ruler_idle_queue_pos_redraw (gpointer data)
 static void
 gimp_ruler_queue_pos_redraw (GimpRuler *ruler)
 {
-  GimpRulerPrivate  *priv = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate  *priv = GET_PRIVATE (ruler);
   const GdkRectangle rect = gimp_ruler_get_pos_rect (ruler, priv->position);
   GtkAllocation      allocation;
 
@@ -1304,7 +1296,7 @@ gimp_ruler_draw_pos (GimpRuler *ruler,
 {
   GtkWidget        *widget  = GTK_WIDGET (ruler);
   GtkStyleContext  *context = gtk_widget_get_style_context (widget);
-  GimpRulerPrivate *priv    = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv    = GET_PRIVATE (ruler);
   GdkRectangle      pos_rect;
 
   if (! gtk_widget_is_drawable (widget))
@@ -1357,7 +1349,7 @@ static void
 gimp_ruler_make_pixmap (GimpRuler *ruler)
 {
   GtkWidget        *widget = GTK_WIDGET (ruler);
-  GimpRulerPrivate *priv   = GIMP_RULER_GET_PRIVATE (ruler);
+  GimpRulerPrivate *priv   = GET_PRIVATE (ruler);
   GtkAllocation     allocation;
 
   gtk_widget_get_allocation (widget, &allocation);
@@ -1378,7 +1370,7 @@ static PangoLayout *
 gimp_ruler_get_layout (GtkWidget   *widget,
                        const gchar *text)
 {
-  GimpRulerPrivate *priv = GIMP_RULER_GET_PRIVATE (widget);
+  GimpRulerPrivate *priv = GET_PRIVATE (widget);
 
   if (priv->layout)
     {
diff --git a/libgimpwidgets/gimpruler.h b/libgimpwidgets/gimpruler.h
index 6ae8355..00bd974 100644
--- a/libgimpwidgets/gimpruler.h
+++ b/libgimpwidgets/gimpruler.h
@@ -33,11 +33,14 @@ G_BEGIN_DECLS
 #define GIMP_RULER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_RULER, GimpRulerClass))
 
 
+typedef struct _GimpRulerPrivate GimpRulerPrivate;
 typedef struct _GimpRulerClass   GimpRulerClass;
 
 struct _GimpRuler
 {
-  GtkWidget  parent_instance;
+  GtkWidget         parent_instance;
+
+  GimpRulerPrivate *priv;
 };
 
 struct _GimpRulerClass
@@ -49,6 +52,10 @@ struct _GimpRulerClass
   void (*_gimp_reserved2) (void);
   void (*_gimp_reserved3) (void);
   void (*_gimp_reserved4) (void);
+  void (*_gimp_reserved5) (void);
+  void (*_gimp_reserved6) (void);
+  void (*_gimp_reserved7) (void);
+  void (*_gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpscrolledpreview.c b/libgimpwidgets/gimpscrolledpreview.c
index 1d6c474..b5d52ea 100644
--- a/libgimpwidgets/gimpscrolledpreview.c
+++ b/libgimpwidgets/gimpscrolledpreview.c
@@ -46,7 +46,7 @@
 #define POPUP_SIZE  100
 
 
-typedef struct
+struct _GimpScrolledPreviewPrivate
 {
   GtkPolicyType hscr_policy;
   GtkPolicyType vscr_policy;
@@ -56,10 +56,9 @@ typedef struct
   gint          drag_yoff;
   gboolean      in_drag;
   gint          frozen;
-} GimpScrolledPreviewPrivate;
+};
 
-#define GIMP_SCROLLED_PREVIEW_GET_PRIVATE(obj) \
-  ((GimpScrolledPreviewPrivate *) ((GimpScrolledPreview *) (obj))->priv)
+#define GET_PRIVATE(obj) (((GimpScrolledPreview *) (obj))->priv)
 
 
 static void      gimp_scrolled_preview_class_init          (GimpScrolledPreviewClass *klass);
@@ -154,7 +153,7 @@ gimp_scrolled_preview_init (GimpScrolledPreview *preview)
                                                GIMP_TYPE_SCROLLED_PREVIEW,
                                                GimpScrolledPreviewPrivate);
 
-  priv = GIMP_SCROLLED_PREVIEW_GET_PRIVATE (preview);
+  priv = GET_PRIVATE (preview);
 
   preview->nav_popup = NULL;
 
@@ -300,7 +299,7 @@ gimp_scrolled_preview_area_size_allocate (GtkWidget           *widget,
                                           GtkAllocation       *allocation,
                                           GimpScrolledPreview *preview)
 {
-  GimpScrolledPreviewPrivate *priv = GIMP_SCROLLED_PREVIEW_GET_PRIVATE (preview);
+  GimpScrolledPreviewPrivate *priv = GET_PRIVATE (preview);
 
   gint width  = GIMP_PREVIEW (preview)->xmax - GIMP_PREVIEW (preview)->xmin;
   gint height = GIMP_PREVIEW (preview)->ymax - GIMP_PREVIEW (preview)->ymin;
@@ -359,7 +358,7 @@ gimp_scrolled_preview_area_event (GtkWidget           *area,
                                   GdkEvent            *event,
                                   GimpScrolledPreview *preview)
 {
-  GimpScrolledPreviewPrivate *priv = GIMP_SCROLLED_PREVIEW_GET_PRIVATE (preview);
+  GimpScrolledPreviewPrivate *priv = GET_PRIVATE (preview);
   GdkEventButton             *button_event = (GdkEventButton *) event;
   GdkCursor                  *cursor;
 
@@ -516,7 +515,7 @@ static void
 gimp_scrolled_preview_h_scroll (GtkAdjustment *hadj,
                                 GimpPreview   *preview)
 {
-  GimpScrolledPreviewPrivate *priv = GIMP_SCROLLED_PREVIEW_GET_PRIVATE (preview);
+  GimpScrolledPreviewPrivate *priv = GET_PRIVATE (preview);
 
   preview->xoff = gtk_adjustment_get_value (hadj);
 
@@ -534,7 +533,7 @@ static void
 gimp_scrolled_preview_v_scroll (GtkAdjustment *vadj,
                                 GimpPreview   *preview)
 {
-  GimpScrolledPreviewPrivate *priv = GIMP_SCROLLED_PREVIEW_GET_PRIVATE (preview);
+  GimpScrolledPreviewPrivate *priv = GET_PRIVATE (preview);
 
   preview->yoff = gtk_adjustment_get_value (vadj);
 
@@ -843,7 +842,7 @@ gimp_scrolled_preview_set_policy (GimpScrolledPreview *preview,
 
   g_return_if_fail (GIMP_IS_SCROLLED_PREVIEW (preview));
 
-  priv = GIMP_SCROLLED_PREVIEW_GET_PRIVATE (preview);
+  priv = GET_PRIVATE (preview);
 
   priv->hscr_policy = hscrollbar_policy;
   priv->vscr_policy = vscrollbar_policy;
@@ -871,7 +870,7 @@ gimp_scrolled_preview_freeze (GimpScrolledPreview *preview)
 
   g_return_if_fail (GIMP_IS_SCROLLED_PREVIEW (preview));
 
-  priv = GIMP_SCROLLED_PREVIEW_GET_PRIVATE (preview);
+  priv = GET_PRIVATE (preview);
 
   priv->frozen++;
 }
@@ -895,7 +894,7 @@ gimp_scrolled_preview_thaw (GimpScrolledPreview *preview)
 
   g_return_if_fail (GIMP_IS_SCROLLED_PREVIEW (preview));
 
-  priv = GIMP_SCROLLED_PREVIEW_GET_PRIVATE (preview);
+  priv = GET_PRIVATE (preview);
 
   g_return_if_fail (priv->frozen > 0);
 
diff --git a/libgimpwidgets/gimpscrolledpreview.h b/libgimpwidgets/gimpscrolledpreview.h
index a184a92..7e8bf4e 100644
--- a/libgimpwidgets/gimpscrolledpreview.h
+++ b/libgimpwidgets/gimpscrolledpreview.h
@@ -41,22 +41,22 @@ G_BEGIN_DECLS
 #define GIMP_SCROLLED_PREVIEW_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_SCROLLED_PREVIEW, 
GimpScrolledPreviewClass))
 
 
-typedef struct _GimpScrolledPreviewClass  GimpScrolledPreviewClass;
+typedef struct _GimpScrolledPreviewPrivate GimpScrolledPreviewPrivate;
+typedef struct _GimpScrolledPreviewClass   GimpScrolledPreviewClass;
 
 struct _GimpScrolledPreview
 {
-  GimpPreview   parent_instance;
+  GimpPreview                 parent_instance;
 
-  /*< protected >*/
+  GimpScrolledPreviewPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GtkWidget    *hscr;
   GtkWidget    *vscr;
   GtkWidget    *nav_icon;
   GtkWidget    *nav_popup;
   GdkCursor    *cursor_move;
   gpointer      nav_gc; /* unused */
-
-  /*< private >*/
-  gpointer      priv;
 };
 
 struct _GimpScrolledPreviewClass
@@ -68,6 +68,10 @@ struct _GimpScrolledPreviewClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpsizeentry.h b/libgimpwidgets/gimpsizeentry.h
index a1d6bb7..998c955 100644
--- a/libgimpwidgets/gimpsizeentry.h
+++ b/libgimpwidgets/gimpsizeentry.h
@@ -40,14 +40,18 @@ G_BEGIN_DECLS
 #define GIMP_SIZE_ENTRY_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_SIZE_ENTRY, 
GimpSizeEntryClass))
 
 
-typedef struct _GimpSizeEntryClass  GimpSizeEntryClass;
+typedef struct _GimpSizeEntryPrivate GimpSizeEntryPrivate;
+typedef struct _GimpSizeEntryClass   GimpSizeEntryClass;
 
 typedef struct _GimpSizeEntryField  GimpSizeEntryField;
 
 struct _GimpSizeEntry
 {
-  GtkGrid    parent_instance;
+  GtkGrid               parent_instance;
 
+  GimpSizeEntryPrivate *priv;
+
+  /* FIXME MOVE TO PRIVATE */
   GSList    *fields;
   gint       number_of_fields;
 
@@ -73,6 +77,10 @@ struct _GimpSizeEntryClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpstringcombobox.c b/libgimpwidgets/gimpstringcombobox.c
index 4d1f13c..9b719d5 100644
--- a/libgimpwidgets/gimpstringcombobox.c
+++ b/libgimpwidgets/gimpstringcombobox.c
@@ -48,15 +48,14 @@ enum
 };
 
 
-typedef struct
+struct _GimpStringComboBoxPrivate
 {
   gint             id_column;
   gint             label_column;
   GtkCellRenderer *text_renderer;
-} GimpStringComboBoxPrivate;
+};
 
-#define GIMP_STRING_COMBO_BOX_GET_PRIVATE(obj) \
-  ((GimpStringComboBoxPrivate *) ((GimpStringComboBox *) (obj))->priv)
+#define GET_PRIVATE(obj) (((GimpStringComboBox *) (obj))->priv)
 
 
 static void   gimp_string_combo_box_constructed  (GObject      *object);
@@ -151,7 +150,7 @@ gimp_string_combo_box_init (GimpStringComboBox *combo_box)
 static void
 gimp_string_combo_box_constructed (GObject *object)
 {
-  GimpStringComboBoxPrivate *priv = GIMP_STRING_COMBO_BOX_GET_PRIVATE (object);
+  GimpStringComboBoxPrivate *priv = GET_PRIVATE (object);
   GtkCellRenderer           *cell;
 
   G_OBJECT_CLASS (parent_class)->constructed (object);
@@ -170,7 +169,7 @@ gimp_string_combo_box_set_property (GObject      *object,
                                     const GValue *value,
                                     GParamSpec   *pspec)
 {
-  GimpStringComboBoxPrivate *priv = GIMP_STRING_COMBO_BOX_GET_PRIVATE (object);
+  GimpStringComboBoxPrivate *priv = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -198,7 +197,7 @@ gimp_string_combo_box_get_property (GObject    *object,
                                     GValue     *value,
                                     GParamSpec *pspec)
 {
-  GimpStringComboBoxPrivate *priv = GIMP_STRING_COMBO_BOX_GET_PRIVATE (object);
+  GimpStringComboBoxPrivate *priv = GET_PRIVATE (object);
 
   switch (property_id)
     {
@@ -312,7 +311,7 @@ gimp_string_combo_box_set_active (GimpStringComboBox *combo_box,
 
       model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
 
-      column = GIMP_STRING_COMBO_BOX_GET_PRIVATE (combo_box)->id_column;
+      column = GET_PRIVATE (combo_box)->id_column;
 
       if (gimp_string_model_lookup (model, column, id, &iter))
         {
@@ -353,7 +352,7 @@ gimp_string_combo_box_get_active (GimpStringComboBox *combo_box)
       gchar        *value;
       gint          column;
 
-      column = GIMP_STRING_COMBO_BOX_GET_PRIVATE (combo_box)->id_column;
+      column = GET_PRIVATE (combo_box)->id_column;
 
       gtk_tree_model_get (model, &iter,
                           column, &value,
diff --git a/libgimpwidgets/gimpstringcombobox.h b/libgimpwidgets/gimpstringcombobox.h
index 298f10e..2eb3c4e 100644
--- a/libgimpwidgets/gimpstringcombobox.h
+++ b/libgimpwidgets/gimpstringcombobox.h
@@ -37,14 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_STRING_COMBO_BOX_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_STRING_COMBO_BOX, 
GimpStringComboBoxClass))
 
 
-typedef struct _GimpStringComboBoxClass  GimpStringComboBoxClass;
+typedef struct _GimpStringComboBoxPrivate GimpStringComboBoxPrivate;
+typedef struct _GimpStringComboBoxClass   GimpStringComboBoxClass;
 
 struct _GimpStringComboBox
 {
-  GtkComboBox       parent_instance;
+  GtkComboBox                parent_instance;
 
-  /*< private >*/
-  gpointer          priv;
+  GimpStringComboBoxPrivate *priv;
 };
 
 struct _GimpStringComboBoxClass
@@ -56,6 +56,10 @@ struct _GimpStringComboBoxClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpunitcombobox.h b/libgimpwidgets/gimpunitcombobox.h
index f469b75..ca25caa 100644
--- a/libgimpwidgets/gimpunitcombobox.h
+++ b/libgimpwidgets/gimpunitcombobox.h
@@ -37,11 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_UNIT_COMBO_BOX_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_UNIT_COMBO_BOX, 
GimpUnitComboBoxClass))
 
 
-typedef struct _GimpUnitComboBoxClass  GimpUnitComboBoxClass;
+typedef struct _GimpUnitComboBoxPrivate GimpUnitComboBoxPrivate;
+typedef struct _GimpUnitComboBoxClass   GimpUnitComboBoxClass;
 
 struct _GimpUnitComboBox
 {
-  GtkComboBox       parent_instance;
+  GtkComboBox              parent_instance;
+
+  GimpUnitComboBoxPrivate *priv;
 };
 
 struct _GimpUnitComboBoxClass
@@ -53,6 +56,10 @@ struct _GimpUnitComboBoxClass
   void (*_gimp_reserved2) (void);
   void (*_gimp_reserved3) (void);
   void (*_gimp_reserved4) (void);
+  void (*_gimp_reserved5) (void);
+  void (*_gimp_reserved6) (void);
+  void (*_gimp_reserved7) (void);
+  void (*_gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpunitstore.c b/libgimpwidgets/gimpunitstore.c
index 83588fa..a5f8d06 100644
--- a/libgimpwidgets/gimpunitstore.c
+++ b/libgimpwidgets/gimpunitstore.c
@@ -40,7 +40,7 @@ enum
   PROP_LONG_FORMAT
 };
 
-typedef struct
+struct _GimpUnitStorePrivate
 {
   gint      num_values;
   gboolean  has_pixels;
@@ -53,11 +53,9 @@ typedef struct
   gdouble  *resolutions;
 
   GimpUnit  synced_unit;
-} GimpUnitStorePrivate;
+};
 
-#define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE (obj, \
-                                                      GIMP_TYPE_UNIT_STORE, \
-                                                      GimpUnitStorePrivate)
+#define GET_PRIVATE(obj) (((GimpUnitStore *) (obj))->priv)
 
 
 static void         gimp_unit_store_tree_model_init (GtkTreeModelIface *iface);
@@ -178,7 +176,13 @@ gimp_unit_store_class_init (GimpUnitStoreClass *klass)
 static void
 gimp_unit_store_init (GimpUnitStore *store)
 {
-  GimpUnitStorePrivate *private = GET_PRIVATE (store);
+  GimpUnitStorePrivate *private;
+
+  store->priv = G_TYPE_INSTANCE_GET_PRIVATE (store,
+                                             GIMP_TYPE_UNIT_STORE,
+                                             GimpUnitStorePrivate);
+
+  private = store->priv;
 
   private->has_pixels   = TRUE;
   private->has_percent  = FALSE;
diff --git a/libgimpwidgets/gimpunitstore.h b/libgimpwidgets/gimpunitstore.h
index 25688d6..23dd774 100644
--- a/libgimpwidgets/gimpunitstore.h
+++ b/libgimpwidgets/gimpunitstore.h
@@ -54,11 +54,14 @@ enum
 #define GIMP_UNIT_STORE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_UNIT_STORE, 
GimpUnitStoreClass))
 
 
-typedef struct _GimpUnitStoreClass  GimpUnitStoreClass;
+typedef struct _GimpUnitStorePrivate GimpUnitStorePrivate;
+typedef struct _GimpUnitStoreClass   GimpUnitStoreClass;
 
 struct _GimpUnitStore
 {
-  GObject  parent_instance;
+  GObject               parent_instance;
+
+  GimpUnitStorePrivate *priv;
 };
 
 struct _GimpUnitStoreClass
@@ -66,10 +69,14 @@ struct _GimpUnitStoreClass
   GObjectClass  parent_class;
 
   /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
+  void (*_gimp_reserved1) (void);
+  void (*_gimp_reserved2) (void);
+  void (*_gimp_reserved3) (void);
+  void (*_gimp_reserved4) (void);
+  void (*_gimp_reserved5) (void);
+  void (*_gimp_reserved6) (void);
+  void (*_gimp_reserved7) (void);
+  void (*_gimp_reserved8) (void);
 };
 
 
diff --git a/libgimpwidgets/gimpzoommodel.c b/libgimpwidgets/gimpzoommodel.c
index c11a9b0..805a039 100644
--- a/libgimpwidgets/gimpzoommodel.c
+++ b/libgimpwidgets/gimpzoommodel.c
@@ -62,15 +62,14 @@ enum
 };
 
 
-typedef struct
+struct _GimpZoomModelPrivate
 {
   gdouble  value;
   gdouble  minimum;
   gdouble  maximum;
-} GimpZoomModelPrivate;
+};
 
-#define GIMP_ZOOM_MODEL_GET_PRIVATE(obj) \
-  ((GimpZoomModelPrivate *) ((GimpZoomModel *) (obj))->priv)
+#define GET_PRIVATE(obj) (((GimpZoomModel *) (obj))->priv)
 
 
 static void  gimp_zoom_model_set_property (GObject      *object,
@@ -189,7 +188,7 @@ gimp_zoom_model_init (GimpZoomModel *model)
                                              GIMP_TYPE_ZOOM_MODEL,
                                              GimpZoomModelPrivate);
 
-  priv = GIMP_ZOOM_MODEL_GET_PRIVATE (model);
+  priv = GET_PRIVATE (model);
 
   priv->value   = 1.0;
   priv->minimum = ZOOM_MIN;
@@ -202,7 +201,7 @@ gimp_zoom_model_set_property (GObject      *object,
                               const GValue *value,
                               GParamSpec   *pspec)
 {
-  GimpZoomModelPrivate *priv  = GIMP_ZOOM_MODEL_GET_PRIVATE (object);
+  GimpZoomModelPrivate *priv  = GET_PRIVATE (object);
   gdouble               previous_value;
 
   previous_value = priv->value;
@@ -255,7 +254,7 @@ gimp_zoom_model_get_property (GObject    *object,
                               GValue     *value,
                               GParamSpec *pspec)
 {
-  GimpZoomModelPrivate *priv  = GIMP_ZOOM_MODEL_GET_PRIVATE (object);
+  GimpZoomModelPrivate *priv = GET_PRIVATE (object);
   gchar                *tmp;
 
   switch (property_id)
@@ -302,7 +301,7 @@ gimp_zoom_model_get_property (GObject    *object,
 static void
 gimp_zoom_model_zoom_in (GimpZoomModel *model)
 {
-  GimpZoomModelPrivate *priv = GIMP_ZOOM_MODEL_GET_PRIVATE (model);
+  GimpZoomModelPrivate *priv = GET_PRIVATE (model);
 
   if (priv->value < priv->maximum)
     gimp_zoom_model_zoom (model, GIMP_ZOOM_IN, 0.0);
@@ -311,7 +310,7 @@ gimp_zoom_model_zoom_in (GimpZoomModel *model)
 static void
 gimp_zoom_model_zoom_out (GimpZoomModel *model)
 {
-  GimpZoomModelPrivate *priv = GIMP_ZOOM_MODEL_GET_PRIVATE (model);
+  GimpZoomModelPrivate *priv = GET_PRIVATE (model);
 
   if (priv->value > priv->minimum)
     gimp_zoom_model_zoom (model, GIMP_ZOOM_OUT, 0.0);
@@ -397,7 +396,7 @@ gimp_zoom_model_get_factor (GimpZoomModel *model)
 {
   g_return_val_if_fail (GIMP_IS_ZOOM_MODEL (model), 1.0);
 
-  return GIMP_ZOOM_MODEL_GET_PRIVATE (model)->value;
+  return GET_PRIVATE (model)->value;
 }
 
 
@@ -518,7 +517,7 @@ zoom_in_button_callback (GimpZoomModel *model,
                          gdouble        new,
                          GtkWidget     *button)
 {
-  GimpZoomModelPrivate *priv = GIMP_ZOOM_MODEL_GET_PRIVATE (model);
+  GimpZoomModelPrivate *priv = GET_PRIVATE (model);
 
   gtk_widget_set_sensitive (button, priv->value != priv->maximum);
 }
@@ -529,7 +528,7 @@ zoom_out_button_callback (GimpZoomModel *model,
                           gdouble        new,
                           GtkWidget     *button)
 {
-  GimpZoomModelPrivate *priv = GIMP_ZOOM_MODEL_GET_PRIVATE (model);
+  GimpZoomModelPrivate *priv = GET_PRIVATE (model);
 
   gtk_widget_set_sensitive (button, priv->value != priv->minimum);
 }
diff --git a/libgimpwidgets/gimpzoommodel.h b/libgimpwidgets/gimpzoommodel.h
index 2a8577b..50f6052 100644
--- a/libgimpwidgets/gimpzoommodel.h
+++ b/libgimpwidgets/gimpzoommodel.h
@@ -37,14 +37,14 @@ G_BEGIN_DECLS
 #define GIMP_ZOOM_MODEL_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ZOOM_MODEL, 
GimpZoomModel))
 
 
-typedef struct _GimpZoomModelClass  GimpZoomModelClass;
+typedef struct _GimpZoomModelPrivate GimpZoomModelPrivate;
+typedef struct _GimpZoomModelClass   GimpZoomModelClass;
 
 struct _GimpZoomModel
 {
-  GObject   parent_instance;
+  GObject               parent_instance;
 
-  /*< private >*/
-  gpointer  priv;
+  GimpZoomModelPrivate *priv;
 };
 
 struct _GimpZoomModelClass
@@ -60,6 +60,10 @@ struct _GimpZoomModelClass
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
   void (* _gimp_reserved4) (void);
+  void (* _gimp_reserved5) (void);
+  void (* _gimp_reserved6) (void);
+  void (* _gimp_reserved7) (void);
+  void (* _gimp_reserved8) (void);
 };
 
 


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