[gtk/wip/otte/listview: 6/44] listbase: Move orientable implementation here

[Benjamin Otte <otte src gnome org>]

commit bd310cf6d4c9aeeccee85b4a908c444d73c1fe29
Author: Benjamin Otte <otte redhat com>
Date:   Thu Oct 24 02:07:37 2019 +0200

    listbase: Move orientable implementation here

 gtk/gtkgridview.c        | 89 +++++++++++++++---------------------------------
 gtk/gtklistbase.c        | 49 +++++++++++++++++++++++++-
 gtk/gtklistbaseprivate.h |  3 ++
 gtk/gtklistview.c        | 74 +++++++++-------------------------------
 4 files changed, 95 insertions(+), 120 deletions(-)
---
diff --git a/gtk/gtkgridview.c b/gtk/gtkgridview.c
index b8aba3e8cd..bb962f9632 100644
--- a/gtk/gtkgridview.c
+++ b/gtk/gtkgridview.c
@@ -27,10 +27,8 @@
 #include "gtklistitemfactory.h"
 #include "gtklistitemmanagerprivate.h"
 #include "gtkmain.h"
-#include "gtkorientableprivate.h"
 #include "gtkprivate.h"
 #include "gtksingleselection.h"
-#include "gtktypebuiltins.h"
 #include "gtkwidgetprivate.h"
 
 /* Maximum number of list items created by the gridview.
@@ -62,7 +60,6 @@ struct _GtkGridView
 
   GListModel *model;
   GtkListItemManager *item_manager;
-  GtkOrientation orientation;
   guint min_columns;
   guint max_columns;
   /* set in size_allocate */
@@ -103,7 +100,6 @@ enum
   PROP_MAX_COLUMNS,
   PROP_MIN_COLUMNS,
   PROP_MODEL,
-  PROP_ORIENTATION,
 
   N_PROPS
 };
@@ -113,8 +109,7 @@ enum {
   LAST_SIGNAL
 };
 
-G_DEFINE_TYPE_WITH_CODE (GtkGridView, gtk_grid_view, GTK_TYPE_LIST_BASE,
-                         G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL))
+G_DEFINE_TYPE (GtkGridView, gtk_grid_view, GTK_TYPE_LIST_BASE)
 
 static GParamSpec *properties[N_PROPS] = { NULL, };
 static guint signals[LAST_SIGNAL] = { 0 };
@@ -476,7 +471,7 @@ gtk_grid_view_adjustment_value_changed (GtkListBase    *base,
   anchor_pos = gtk_list_item_tracker_get_position (self->item_manager, self->anchor);
   n_items = g_list_model_get_n_items (self->model);
 
-  if (orientation == self->orientation)
+  if (orientation == gtk_list_base_get_orientation (GTK_LIST_BASE (self)))
     {
       /* Compute how far down we've scrolled. That's the height
        * we want to align to. */
@@ -574,7 +569,7 @@ gtk_grid_view_adjustment_value_changed (GtkListBase    *base,
        * to fill the row.
        * Do it the hard way then... */
       gtk_list_base_get_adjustment_values (base, 
-                                           OPPOSITE_ORIENTATION (self->orientation),
+                                           gtk_list_base_get_opposite_orientation (base),
                                            &value, &total_size, &page_size);
 
       pos = n_items - 1;
@@ -600,7 +595,7 @@ gtk_grid_view_update_adjustment (GtkGridView    *self,
 
   page_size = gtk_widget_get_size (GTK_WIDGET (self), orientation);
 
-  if (self->orientation == orientation)
+  if (gtk_list_base_get_orientation (GTK_LIST_BASE (self)) == orientation)
     {
       Cell *cell;
       CellAugment *aug;
@@ -619,7 +614,7 @@ gtk_grid_view_update_adjustment (GtkGridView    *self,
         value += cell_size;
 
       value = gtk_list_base_set_adjustment_values (GTK_LIST_BASE (self),
-                                                   self->orientation,
+                                                   orientation,
                                                    value - self->anchor_yalign * page_size,
                                                    aug->size,
                                                    page_size);
@@ -635,7 +630,7 @@ gtk_grid_view_update_adjustment (GtkGridView    *self,
       total_size = round (self->n_columns * self->column_width);
 
       value = gtk_list_base_set_adjustment_values (GTK_LIST_BASE (self),
-                                                   OPPOSITE_ORIENTATION (self->orientation),
+                                                   orientation,
                                                    value - self->anchor_xalign * page_size,
                                                    total_size,
                                                    page_size);
@@ -674,7 +669,7 @@ gtk_grid_view_measure_column_size (GtkGridView *self,
 
   min = 0;
   nat = 0;
-  opposite = OPPOSITE_ORIENTATION (self->orientation);
+  opposite = gtk_list_base_get_opposite_orientation (GTK_LIST_BASE (self));
 
   for (cell = gtk_list_item_manager_get_first (self->item_manager);
        cell != NULL;
@@ -718,7 +713,8 @@ gtk_grid_view_compute_n_columns (GtkGridView *self,
   guint n_columns;
 
   /* rounding down is exactly what we want here, so int division works */
-  if (gtk_list_base_get_scroll_policy (GTK_LIST_BASE (self), OPPOSITE_ORIENTATION (self->orientation)) == 
GTK_SCROLL_MINIMUM)
+  if (gtk_list_base_get_scroll_policy (GTK_LIST_BASE (self),
+                                       gtk_list_base_get_opposite_orientation (GTK_LIST_BASE (self))) == 
GTK_SCROLL_MINIMUM)
     n_columns = for_size / MAX (1, min);
   else
     n_columns = for_size / MAX (1, nat);
@@ -743,7 +739,7 @@ gtk_grid_view_measure_list (GtkWidget *widget,
   guint n_unknown, n_columns;
   guint i;
 
-  scroll_policy = gtk_list_base_get_scroll_policy (GTK_LIST_BASE (self), self->orientation);
+  scroll_policy = gtk_list_base_get_scroll_policy (GTK_LIST_BASE (self), gtk_list_base_get_orientation 
(GTK_LIST_BASE (self)));
   heights = g_array_new (FALSE, FALSE, sizeof (int));
   n_unknown = 0;
   height = 0;
@@ -763,7 +759,8 @@ gtk_grid_view_measure_list (GtkWidget *widget,
       if (cell->parent.widget)
         {
           gtk_widget_measure (cell->parent.widget,
-                              self->orientation, column_size,
+                              gtk_list_base_get_orientation (GTK_LIST_BASE (self)),
+                              column_size,
                               &child_min, &child_nat, NULL, NULL);
           if (scroll_policy == GTK_SCROLL_MINIMUM)
             row_height = MAX (row_height, child_min);
@@ -820,7 +817,7 @@ gtk_grid_view_measure (GtkWidget      *widget,
 {
   GtkGridView *self = GTK_GRID_VIEW (widget);
 
-  if (orientation == self->orientation)
+  if (orientation == gtk_list_base_get_orientation (GTK_LIST_BASE (self)))
     gtk_grid_view_measure_list (widget, for_size, minimum, natural);
   else
     gtk_grid_view_measure_across (widget, for_size, minimum, natural);
@@ -847,7 +844,7 @@ gtk_grid_view_size_allocate_child (GtkGridView *self,
 {
   GtkAllocation child_allocation;
 
-  if (self->orientation == GTK_ORIENTATION_VERTICAL)
+  if (gtk_list_base_get_orientation (GTK_LIST_BASE (self)) == GTK_ORIENTATION_VERTICAL)
     {
       child_allocation.x = x;
       child_allocation.y = y;
@@ -884,14 +881,15 @@ gtk_grid_view_size_allocate (GtkWidget *widget,
   Cell *cell, *start;
   GArray *heights;
   int min_row_height, row_height, col_min, col_nat;
-  GtkOrientation opposite_orientation;
+  GtkOrientation orientation, opposite_orientation;
   GtkScrollablePolicy scroll_policy;
   gboolean known;
   int x, y;
   guint i;
 
-  scroll_policy = gtk_list_base_get_scroll_policy (GTK_LIST_BASE (self), self->orientation);
-  opposite_orientation = OPPOSITE_ORIENTATION (self->orientation);
+  orientation = gtk_list_base_get_orientation (GTK_LIST_BASE (self));
+  scroll_policy = gtk_list_base_get_scroll_policy (GTK_LIST_BASE (self), orientation);
+  opposite_orientation = OPPOSITE_ORIENTATION (orientation);
   min_row_height = ceil ((double) height / GTK_GRID_VIEW_MAX_VISIBLE_ROWS);
 
   /* step 0: exit early if list is empty */
@@ -901,9 +899,9 @@ gtk_grid_view_size_allocate (GtkWidget *widget,
   /* step 1: determine width of the list */
   gtk_grid_view_measure_column_size (self, &col_min, &col_nat);
   self->n_columns = gtk_grid_view_compute_n_columns (self, 
-                                                     self->orientation == GTK_ORIENTATION_VERTICAL ? width : 
height,
+                                                     orientation == GTK_ORIENTATION_VERTICAL ? width : 
height,
                                                      col_min, col_nat);
-  self->column_width = (self->orientation == GTK_ORIENTATION_VERTICAL ? width : height) / self->n_columns;
+  self->column_width = (orientation == GTK_ORIENTATION_VERTICAL ? width : height) / self->n_columns;
   self->column_width = MAX (self->column_width, col_min);
 
   /* step 2: determine height of known rows */
@@ -922,7 +920,8 @@ gtk_grid_view_size_allocate (GtkWidget *widget,
       if (cell->parent.widget)
         {
           int min, nat, size;
-          gtk_widget_measure (cell->parent.widget, self->orientation,
+          gtk_widget_measure (cell->parent.widget,
+                              gtk_list_base_get_orientation (GTK_LIST_BASE (self)),
                               self->column_width,
                               &min, &nat, NULL, NULL);
           if (scroll_policy == GTK_SCROLL_MINIMUM)
@@ -983,7 +982,7 @@ gtk_grid_view_size_allocate (GtkWidget *widget,
 
   /* step 4: update the adjustments */
   x = - gtk_grid_view_update_adjustment (self, opposite_orientation);
-  y = - gtk_grid_view_update_adjustment (self, self->orientation);
+  y = - gtk_grid_view_update_adjustment (self, orientation);
 
   /* step 5: run the size_allocate loop */
   x = -x;
@@ -1073,10 +1072,6 @@ gtk_grid_view_get_property (GObject    *object,
       g_value_set_object (value, self->model);
       break;
 
-    case PROP_ORIENTATION:
-      g_value_set_enum (value, self->orientation);
-      break;
-
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -1105,19 +1100,6 @@ gtk_grid_view_set_property (GObject      *object,
       gtk_grid_view_set_min_columns (self, g_value_get_uint (value));
       break;
  
-    case PROP_ORIENTATION:
-      {
-        GtkOrientation orientation = g_value_get_enum (value);
-        if (self->orientation != orientation)
-          {
-            self->orientation = orientation;
-            _gtk_orientable_set_style_classes (GTK_ORIENTABLE (self));
-            gtk_widget_queue_resize (GTK_WIDGET (self));
-            g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ORIENTATION]);
-          }
-      }
-      break;
-
     case PROP_MODEL:
       gtk_grid_view_set_model (self, g_value_get_object (value));
       break;
@@ -1231,7 +1213,7 @@ gtk_grid_view_scroll_to_item (GtkWidget  *widget,
 
   end += start;
   gtk_grid_view_compute_scroll_align (self,
-                                      self->orientation,
+                                      gtk_list_base_get_orientation (GTK_LIST_BASE (self)),
                                       start, end,
                                       self->anchor_yalign, self->anchor_ystart,
                                       &yalign, &ystart);
@@ -1240,7 +1222,7 @@ gtk_grid_view_scroll_to_item (GtkWidget  *widget,
   start = floor (self->column_width * (pos % self->n_columns));
   end = floor (self->column_width * ((pos % self->n_columns) + 1));
   gtk_grid_view_compute_scroll_align (self,
-                                      OPPOSITE_ORIENTATION (self->orientation),
+                                      gtk_list_base_get_opposite_orientation (GTK_LIST_BASE (self)),
                                       start, end,
                                       self->anchor_xalign, self->anchor_xstart,
                                       &xalign, &xstart);
@@ -1287,7 +1269,7 @@ gtk_grid_view_move_cursor (GtkWidget *widget,
 
   g_variant_get (args, "(ubbbi)", &orientation, &select, &modify, &extend, &amount);
 
-  if (self->orientation == orientation)
+  if (gtk_list_base_get_orientation (GTK_LIST_BASE (self)) == orientation)
     amount *= self->n_columns;
 
   if (orientation == GTK_ORIENTATION_HORIZONTAL &&
@@ -1365,7 +1347,7 @@ gtk_grid_view_move_cursor_page_up (GtkWidget *widget,
   if (!gtk_grid_view_get_size_at_position (self, pos, &start, &size))
     return;
   gtk_list_base_get_adjustment_values (GTK_LIST_BASE (self),
-                                       self->orientation,
+                                       gtk_list_base_get_orientation (GTK_LIST_BASE (self)),
                                        NULL, NULL, &page_size);
   if (!gtk_grid_view_get_cell_at_y (self,
                                     MAX (0, start + size - page_size),
@@ -1402,7 +1384,7 @@ gtk_grid_view_move_cursor_page_down (GtkWidget *widget,
   if (!gtk_grid_view_get_size_at_position (self, pos, &start, NULL))
     return;
   gtk_list_base_get_adjustment_values (GTK_LIST_BASE (self),
-                                       self->orientation,
+                                       gtk_list_base_get_orientation (GTK_LIST_BASE (self)),
                                        NULL, NULL, &page_size);
   if (gtk_grid_view_get_cell_at_y (self,
                                    start + page_size,
@@ -1567,20 +1549,6 @@ gtk_grid_view_class_init (GtkGridViewClass *klass)
                          G_TYPE_LIST_MODEL,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
-  /**
-   * GtkGridView:orientation:
-   *
-   * The orientation of the gridview. See GtkOrientable:orientation
-   * for details.
-   */
-  properties[PROP_ORIENTATION] =
-    g_param_spec_enum ("orientation",
-                       P_("Orientation"),
-                       P_("The orientation of the orientable"),
-                       GTK_TYPE_ORIENTATION,
-                       GTK_ORIENTATION_VERTICAL,
-                       GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
-
   g_object_class_install_properties (gobject_class, N_PROPS, properties);
 
   /**
@@ -1672,7 +1640,6 @@ gtk_grid_view_init (GtkGridView *self)
 
   self->min_columns = 1;
   self->max_columns = DEFAULT_MAX_COLUMNS;
-  self->orientation = GTK_ORIENTATION_VERTICAL;
 }
 
 /**
diff --git a/gtk/gtklistbase.c b/gtk/gtklistbase.c
index f637cdff28..c7ad383bc7 100644
--- a/gtk/gtklistbase.c
+++ b/gtk/gtklistbase.c
@@ -22,13 +22,17 @@
 #include "gtklistbaseprivate.h"
 
 #include "gtkadjustment.h"
+#include "gtkintl.h"
+#include "gtkorientableprivate.h"
 #include "gtkscrollable.h"
+#include "gtktypebuiltins.h"
 
 typedef struct _GtkListBasePrivate GtkListBasePrivate;
 
 struct _GtkListBasePrivate
 {
   GtkListItemManager *item_manager;
+  GtkOrientation orientation;
   GtkAdjustment *adjustment[2];
   GtkScrollablePolicy scroll_policy[2];
 
@@ -41,6 +45,7 @@ enum
   PROP_0,
   PROP_HADJUSTMENT,
   PROP_HSCROLL_POLICY,
+  PROP_ORIENTATION,
   PROP_VADJUSTMENT,
   PROP_VSCROLL_POLICY,
 
@@ -52,6 +57,7 @@ static void gtk_list_base_init_real (GtkListBase *self, GtkListBaseClass *g_clas
 #define g_type_register_static_simple(a,b,c,d,e,evil,f) g_type_register_static_simple(a,b,c,d,e, 
(GInstanceInitFunc) gtk_list_base_init_real, f);
 G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkListBase, gtk_list_base, GTK_TYPE_WIDGET,
                                                               G_ADD_PRIVATE (GtkListBase)
+                                                              G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, 
NULL)
                                                               G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, 
NULL))
 #undef g_type_register_static_simple
 G_GNUC_UNUSED static void gtk_list_base_init (GtkListBase *self) { }
@@ -166,6 +172,10 @@ gtk_list_base_get_property (GObject    *object,
       g_value_set_enum (value, priv->scroll_policy[GTK_ORIENTATION_HORIZONTAL]);
       break;
 
+    case PROP_ORIENTATION:
+      g_value_set_enum (value, priv->orientation);
+      break;
+
     case PROP_VADJUSTMENT:
       g_value_set_object (value, priv->adjustment[GTK_ORIENTATION_VERTICAL]);
       break;
@@ -232,6 +242,7 @@ gtk_list_base_set_property (GObject      *object,
                             GParamSpec   *pspec)
 {
   GtkListBase *self = GTK_LIST_BASE (object);
+  GtkListBasePrivate *priv = gtk_list_base_get_instance_private (self);
 
   switch (property_id)
     {
@@ -243,6 +254,19 @@ gtk_list_base_set_property (GObject      *object,
       gtk_list_base_set_scroll_policy (self, GTK_ORIENTATION_HORIZONTAL, g_value_get_enum (value));
       break;
 
+    case PROP_ORIENTATION:
+      {
+        GtkOrientation orientation = g_value_get_enum (value);
+        if (priv->orientation != orientation)
+          {
+            priv->orientation = orientation;
+            _gtk_orientable_set_style_classes (GTK_ORIENTABLE (self));
+            gtk_widget_queue_resize (GTK_WIDGET (self));
+            g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ORIENTATION]);
+          }
+      }
+      break;
+
     case PROP_VADJUSTMENT:
       gtk_list_base_set_adjustment (self, GTK_ORIENTATION_VERTICAL, g_value_get_object (value));
       break;
@@ -329,6 +353,20 @@ gtk_list_base_class_init (GtkListBaseClass *klass)
       g_param_spec_override ("vscroll-policy",
                              g_object_interface_find_property (iface, "vscroll-policy"));
 
+  /**
+   * GtkListBase:orientation:
+   *
+   * The orientation of the list. See GtkOrientable:orientation
+   * for details.
+   */
+  properties[PROP_ORIENTATION] =
+    g_param_spec_enum ("orientation",
+                       P_("Orientation"),
+                       P_("The orientation of the orientable"),
+                       GTK_TYPE_ORIENTATION,
+                       GTK_ORIENTATION_VERTICAL,
+                       G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_EXPLICIT_NOTIFY);
+
   g_object_class_install_properties (gobject_class, N_PROPS, properties);
 
   /**
@@ -389,12 +427,13 @@ gtk_list_base_init_real (GtkListBase      *self,
                                                            g_class->list_item_size,
                                                            g_class->list_item_augment_size,
                                                            g_class->list_item_augment_func);
-
   priv->selected = gtk_list_item_tracker_new (priv->item_manager);
 
   priv->adjustment[GTK_ORIENTATION_HORIZONTAL] = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
   priv->adjustment[GTK_ORIENTATION_VERTICAL] = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
 
+  priv->orientation = GTK_ORIENTATION_VERTICAL;
+
   gtk_widget_set_overflow (GTK_WIDGET (self), GTK_OVERFLOW_HIDDEN);
 }
 
@@ -473,6 +512,14 @@ gtk_list_base_get_scroll_policy (GtkListBase    *self,
   return priv->scroll_policy[orientation];
 }
 
+GtkOrientation
+gtk_list_base_get_orientation (GtkListBase *self)
+{
+  GtkListBasePrivate *priv = gtk_list_base_get_instance_private (self);
+
+  return priv->orientation;
+}
+
 GtkListItemManager *
 gtk_list_base_get_manager (GtkListBase *self)
 {
diff --git a/gtk/gtklistbaseprivate.h b/gtk/gtklistbaseprivate.h
index 47fd7f31b8..e6b070c508 100644
--- a/gtk/gtklistbaseprivate.h
+++ b/gtk/gtklistbaseprivate.h
@@ -23,6 +23,7 @@
 #include "gtklistbase.h"
 
 #include "gtklistitemmanagerprivate.h"
+#include "gtkprivate.h"
 
 struct _GtkListBase
 {
@@ -42,6 +43,8 @@ struct _GtkListBaseClass
                                                                  GtkOrientation          orientation);
 };
 
+GtkOrientation         gtk_list_base_get_orientation            (GtkListBase            *self);
+#define gtk_list_base_get_opposite_orientation(self) 
OPPOSITE_ORIENTATION(gtk_list_base_get_orientation(self))
 GtkListItemManager *   gtk_list_base_get_manager                (GtkListBase            *self);
 GtkScrollablePolicy    gtk_list_base_get_scroll_policy          (GtkListBase            *self,
                                                                  GtkOrientation          orientation);
diff --git a/gtk/gtklistview.c b/gtk/gtklistview.c
index 5edefee409..a57a647b22 100644
--- a/gtk/gtklistview.c
+++ b/gtk/gtklistview.c
@@ -26,13 +26,11 @@
 #include "gtklistbaseprivate.h"
 #include "gtklistitemmanagerprivate.h"
 #include "gtkmain.h"
-#include "gtkorientableprivate.h"
 #include "gtkprivate.h"
 #include "gtkrbtreeprivate.h"
 #include "gtkselectionmodel.h"
 #include "gtksingleselection.h"
 #include "gtkstylecontext.h"
-#include "gtktypebuiltins.h"
 #include "gtkwidgetprivate.h"
 
 /* Maximum number of list items created by the listview.
@@ -63,7 +61,6 @@ struct _GtkListView
   GListModel *model;
   GtkListItemManager *item_manager;
   gboolean show_separators;
-  GtkOrientation orientation;
 
   int list_width;
 
@@ -96,7 +93,6 @@ enum
   PROP_0,
   PROP_FACTORY,
   PROP_MODEL,
-  PROP_ORIENTATION,
   PROP_SHOW_SEPARATORS,
 
   N_PROPS
@@ -107,8 +103,7 @@ enum {
   LAST_SIGNAL
 };
 
-G_DEFINE_TYPE_WITH_CODE (GtkListView, gtk_list_view, GTK_TYPE_LIST_BASE,
-                         G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL))
+G_DEFINE_TYPE (GtkListView, gtk_list_view, GTK_TYPE_LIST_BASE)
 
 static GParamSpec *properties[N_PROPS] = { NULL, };
 static guint signals[LAST_SIGNAL] = { 0 };
@@ -339,7 +334,7 @@ gtk_list_view_adjustment_value_changed (GtkListBase    *base,
 {
   GtkListView *self = GTK_LIST_VIEW (base);
 
-  if (orientation == self->orientation)
+  if (orientation == gtk_list_base_get_orientation (GTK_LIST_BASE (self)))
     {
       int page_size, total_size, value, from_start;
       int row_start, row_end;
@@ -406,7 +401,7 @@ gtk_list_view_update_adjustments (GtkListView    *self,
 
   page_size = gtk_widget_get_size (GTK_WIDGET (self), orientation);
 
-  if (orientation == self->orientation)
+  if (orientation == gtk_list_base_get_orientation (GTK_LIST_BASE (self)))
     {
       int offset, size;
       guint anchor_pos;
@@ -552,7 +547,7 @@ gtk_list_view_measure (GtkWidget      *widget,
 {
   GtkListView *self = GTK_LIST_VIEW (widget);
 
-  if (orientation == self->orientation)
+  if (orientation == gtk_list_base_get_orientation (GTK_LIST_BASE (self)))
     gtk_list_view_measure_list (widget, orientation, for_size, minimum, natural);
   else
     gtk_list_view_measure_across (widget, orientation, for_size, minimum, natural);
@@ -568,7 +563,7 @@ gtk_list_view_size_allocate_child (GtkListView *self,
 {
   GtkAllocation child_allocation;
 
-  if (self->orientation == GTK_ORIENTATION_VERTICAL)
+  if (gtk_list_base_get_orientation (GTK_LIST_BASE (self)) == GTK_ORIENTATION_VERTICAL)
     {
       child_allocation.x = x;
       child_allocation.y = y;
@@ -606,11 +601,12 @@ gtk_list_view_size_allocate (GtkWidget *widget,
   GArray *heights;
   int min, nat, row_height;
   int x, y;
-  GtkOrientation opposite_orientation;
+  GtkOrientation orientation, opposite_orientation;
   GtkScrollablePolicy scroll_policy;
 
-  opposite_orientation = OPPOSITE_ORIENTATION (self->orientation);
-  scroll_policy = gtk_list_base_get_scroll_policy (GTK_LIST_BASE (self), self->orientation);
+  orientation = gtk_list_base_get_orientation (GTK_LIST_BASE (self));
+  opposite_orientation = OPPOSITE_ORIENTATION (orientation);
+  scroll_policy = gtk_list_base_get_scroll_policy (GTK_LIST_BASE (self), orientation);
 
   /* step 0: exit early if list is empty */
   if (gtk_list_item_manager_get_root (self->item_manager) == NULL)
@@ -620,7 +616,7 @@ gtk_list_view_size_allocate (GtkWidget *widget,
   gtk_widget_measure (widget, opposite_orientation,
                       -1,
                       &min, &nat, NULL, NULL);
-  self->list_width = self->orientation == GTK_ORIENTATION_VERTICAL ? width : height;
+  self->list_width = orientation == GTK_ORIENTATION_VERTICAL ? width : height;
   if (scroll_policy == GTK_SCROLL_MINIMUM)
     self->list_width = MAX (min, self->list_width);
   else
@@ -636,7 +632,7 @@ gtk_list_view_size_allocate (GtkWidget *widget,
       if (row->parent.widget == NULL)
         continue;
 
-      gtk_widget_measure (row->parent.widget, self->orientation,
+      gtk_widget_measure (row->parent.widget, orientation,
                           self->list_width,
                           &min, &nat, NULL, NULL);
       if (scroll_policy == GTK_SCROLL_MINIMUM)
@@ -671,7 +667,7 @@ gtk_list_view_size_allocate (GtkWidget *widget,
 
   /* step 3: update the adjustments */
   x = - gtk_list_view_update_adjustments (self, opposite_orientation);
-  y = - gtk_list_view_update_adjustments (self, self->orientation);
+  y = - gtk_list_view_update_adjustments (self, orientation);
 
   /* step 4: actually allocate the widgets */
 
@@ -789,10 +785,6 @@ gtk_list_view_get_property (GObject    *object,
       g_value_set_object (value, self->model);
       break;
 
-    case PROP_ORIENTATION:
-      g_value_set_enum (value, self->orientation);
-      break;
-
     case PROP_SHOW_SEPARATORS:
       g_value_set_boolean (value, self->show_separators);
       break;
@@ -821,19 +813,6 @@ gtk_list_view_set_property (GObject      *object,
       gtk_list_view_set_model (self, g_value_get_object (value));
       break;
 
-    case PROP_ORIENTATION:
-      {
-        GtkOrientation orientation = g_value_get_enum (value);
-        if (self->orientation != orientation)
-          {
-            self->orientation = orientation;
-            _gtk_orientable_set_style_classes (GTK_ORIENTABLE (self));
-            gtk_widget_queue_resize (GTK_WIDGET (self));
-            g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ORIENTATION]);
-          }
-      }
-      break;
-
     case PROP_SHOW_SEPARATORS:
       gtk_list_view_set_show_separators (self, g_value_get_boolean (value));
       break;
@@ -949,7 +928,7 @@ gtk_list_view_scroll_to_item (GtkWidget  *widget,
 
   end += start;
   gtk_list_view_compute_scroll_align (self,
-                                      self->orientation,
+                                      gtk_list_base_get_orientation (GTK_LIST_BASE (self)),
                                       start, end,
                                       self->anchor_align, self->anchor_start,
                                       &align, &top);
@@ -996,7 +975,7 @@ gtk_list_view_move_cursor (GtkWidget *widget,
 
   g_variant_get (args, "(ubbbi)", &orientation, &select, &modify, &extend, &amount);
 
-  if (self->orientation != orientation)
+  if (gtk_list_base_get_orientation (GTK_LIST_BASE (self)) != orientation)
     return;
 
   if (orientation == GTK_ORIENTATION_HORIZONTAL &&
@@ -1073,10 +1052,7 @@ gtk_list_view_move_cursor_page_up (GtkWidget *widget,
   if (n_items == 0 || start == 0)
     return;
 
-  if (self->orientation == GTK_ORIENTATION_HORIZONTAL)
-    pixels = gtk_widget_get_width (widget);
-  else
-    pixels = gtk_widget_get_height (widget);
+  pixels = gtk_widget_get_size (widget, gtk_list_base_get_orientation (GTK_LIST_BASE (self)));
   pixels -= row->height;
 
   pos = gtk_list_view_get_position_at_y (self, 
@@ -1117,10 +1093,7 @@ gtk_list_view_move_cursor_page_down (GtkWidget *widget,
   if (n_items == 0 || start >= n_items - 1)
     return;
 
-  if (self->orientation == GTK_ORIENTATION_HORIZONTAL)
-    pixels = gtk_widget_get_width (widget);
-  else
-    pixels = gtk_widget_get_height (widget);
+  pixels = gtk_widget_get_size (widget, gtk_list_base_get_orientation (GTK_LIST_BASE (self)));
 
   pos = gtk_list_view_get_position_at_y (self, 
                                          list_row_get_y (self, row) + pixels,
@@ -1243,20 +1216,6 @@ gtk_list_view_class_init (GtkListViewClass *klass)
                          G_TYPE_LIST_MODEL,
                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
 
-  /**
-   * GtkListView:orientation:
-   *
-   * The orientation of the orientable. See GtkOrientable:orientation
-   * for details.
-   */
-  properties[PROP_ORIENTATION] =
-    g_param_spec_enum ("orientation",
-                       P_("Orientation"),
-                       P_("The orientation of the orientable"),
-                       GTK_TYPE_ORIENTATION,
-                       GTK_ORIENTATION_VERTICAL,
-                       GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
-
   /**
    * GtkListView:show-separators:
    *
@@ -1354,7 +1313,6 @@ gtk_list_view_init (GtkListView *self)
   self->item_manager = gtk_list_base_get_manager (GTK_LIST_BASE (self));
   self->focus = gtk_list_item_tracker_new (self->item_manager);
   self->anchor = gtk_list_item_tracker_new (self->item_manager);
-  self->orientation = GTK_ORIENTATION_VERTICAL;
 }
 
 /**