[gtk/kill-containers: 3/3] treeview: Derive from GtkWidget

[Matthias Clasen <matthiasc src gnome org>]

commit 4cd82641faa8f04ca2012078dfde9b7ff9fbd1b3
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue May 5 07:27:04 2020 -0400

    treeview: Derive from GtkWidget
    
    Drop the GtkContainer vfuncs.

 gtk/a11y/gtktreeviewaccessible.c |  2 +-
 gtk/gtktreeview.c                | 49 ++++++++--------------------------------
 gtk/gtktreeviewcolumn.c          |  2 +-
 3 files changed, 12 insertions(+), 41 deletions(-)
---
diff --git a/gtk/a11y/gtktreeviewaccessible.c b/gtk/a11y/gtktreeviewaccessible.c
index 51a9cf1e7b..95bb61a2ab 100644
--- a/gtk/a11y/gtktreeviewaccessible.c
+++ b/gtk/a11y/gtktreeviewaccessible.c
@@ -78,7 +78,7 @@ static void atk_selection_interface_init              (AtkSelectionIface
 static void atk_component_interface_init              (AtkComponentIface            *iface);
 static void gtk_cell_accessible_parent_interface_init (GtkCellAccessibleParentIface *iface);
 
-G_DEFINE_TYPE_WITH_CODE (GtkTreeViewAccessible, gtk_tree_view_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE,
+G_DEFINE_TYPE_WITH_CODE (GtkTreeViewAccessible, gtk_tree_view_accessible, GTK_TYPE_WIDGET_ACCESSIBLE,
                          G_ADD_PRIVATE (GtkTreeViewAccessible)
                          G_IMPLEMENT_INTERFACE (ATK_TYPE_TABLE, atk_table_interface_init)
                          G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init)
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 2e2ccbb468..d59ac789e8 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -322,7 +322,7 @@ typedef struct _GtkTreeViewClass      GtkTreeViewClass;
 
 struct _GtkTreeViewClass
 {
-  GtkContainerClass parent_class;
+  GtkWidgetClass parent_class;
 
   void     (* row_activated)              (GtkTreeView       *tree_view,
                                            GtkTreePath       *path,
@@ -364,7 +364,7 @@ struct _GtkTreeViewClass
 
 struct _GtkTreeView
 {
-  GtkContainer parent;
+  GtkWidget parent;
 
   GtkTreeModel *model;
 
@@ -688,12 +688,8 @@ static gboolean gtk_tree_view_grab_focus           (GtkWidget        *widget);
 static void     gtk_tree_view_css_changed          (GtkWidget        *widget,
                                                     GtkCssStyleChange *change);
 
-/* container signals */
-static void     gtk_tree_view_remove               (GtkContainer     *container,
-                                                   GtkWidget        *widget);
-static void     gtk_tree_view_forall               (GtkContainer     *container,
-                                                   GtkCallback       callback,
-                                                   gpointer          callback_data);
+static void     gtk_tree_view_remove               (GtkTreeView      *tree_view,
+                                                    GtkWidget        *widget);
 
 /* Source side drag signals */
 static void gtk_tree_view_dnd_finished_cb  (GdkDrag          *drag,
@@ -1003,10 +999,10 @@ static GParamSpec *tree_view_props [LAST_PROP] = { NULL };
 /* GType Methods
  */
 
-G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
-                        G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
-                                               gtk_tree_view_buildable_init)
-                        G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE,
+G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_WIDGET,
+                         G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
+                                                gtk_tree_view_buildable_init)
+                         G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE,
                                                 gtk_tree_view_scrollable_init))
 
 static void
@@ -1014,7 +1010,6 @@ gtk_tree_view_class_init (GtkTreeViewClass *class)
 {
   GObjectClass *o_class = G_OBJECT_CLASS (class);
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
 
   /* GObject signals */
   o_class->set_property = gtk_tree_view_set_property;
@@ -1034,10 +1029,6 @@ gtk_tree_view_class_init (GtkTreeViewClass *class)
   widget_class->css_changed = gtk_tree_view_css_changed;
   widget_class->query_tooltip = gtk_tree_view_query_tooltip;
 
-  /* GtkContainer signals */
-  container_class->remove = gtk_tree_view_remove;
-  container_class->forall = gtk_tree_view_forall;
-
   class->move_cursor = gtk_tree_view_real_move_cursor;
   class->select_all = gtk_tree_view_real_select_all;
   class->unselect_all = gtk_tree_view_real_unselect_all;
@@ -7448,10 +7439,9 @@ gtk_tree_view_drag_data_received (GObject      *source,
 
 
 static void
-gtk_tree_view_remove (GtkContainer *container,
-                     GtkWidget    *widget)
+gtk_tree_view_remove (GtkTreeView  *tree_view,
+                      GtkWidget    *widget)
 {
-  GtkTreeView *tree_view = GTK_TREE_VIEW (container);
   GtkTreeViewChild *child = NULL;
   GList *tmp_list;
 
@@ -7491,25 +7481,6 @@ gtk_tree_view_remove (GtkContainer *container,
     }
 }
 
-static void
-gtk_tree_view_forall (GtkContainer *container,
-                     GtkCallback   callback,
-                     gpointer      callback_data)
-{
-  GtkTreeView *tree_view = GTK_TREE_VIEW (container);
-  GtkTreeViewChild *child = NULL;
-  GList *tmp_list;
-
-  tmp_list = tree_view->children;
-  while (tmp_list)
-    {
-      child = tmp_list->data;
-      tmp_list = tmp_list->next;
-
-      (* callback) (child->widget, callback_data);
-    }
-}
-
 /* Returns TRUE is any of the columns contains a cell that can-focus.
  * If this is not the case, a column-spanning focus rectangle will be
  * drawn.
diff --git a/gtk/gtktreeviewcolumn.c b/gtk/gtktreeviewcolumn.c
index 923712126b..0692717a65 100644
--- a/gtk/gtktreeviewcolumn.c
+++ b/gtk/gtktreeviewcolumn.c
@@ -1341,7 +1341,7 @@ _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column)
   if (priv->tree_view == NULL)
     return;
 
-  gtk_container_remove (GTK_CONTAINER (priv->tree_view), priv->button);
+  gtk_widget_unparent (priv->button);
 
   if (priv->property_changed_signal)
     {