textview: Derive from GtkWidget

Drop the GtkContainer vfuncs. As a replacement for
gtk_container_remove, make gtk_text_view_remove public.

docs/reference/gtk/gtk4-sections.txt

@@ -2785,6 +2785,7 @@ gtk_text_view_backward_display_line_start
 gtk_text_view_starts_display_line
 gtk_text_view_move_visually
 gtk_text_view_add_child_at_anchor
+gtk_text_view_remove
 GtkTextChildAnchor
 gtk_text_child_anchor_new
 gtk_text_child_anchor_get_widgets

gtk/a11y/gtktextviewaccessible.c

@@ -61,7 +61,7 @@ static void       mark_set_cb           (GtkTextBuffer    *buffer,
 static void atk_editable_text_interface_init      (AtkEditableTextIface      *iface);
 static void atk_text_interface_init               (AtkTextIface              *iface);
 
-G_DEFINE_TYPE_WITH_CODE (GtkTextViewAccessible, gtk_text_view_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE,
+G_DEFINE_TYPE_WITH_CODE (GtkTextViewAccessible, gtk_text_view_accessible, GTK_TYPE_WIDGET_ACCESSIBLE,
                          G_ADD_PRIVATE (GtkTextViewAccessible)
                          G_IMPLEMENT_INTERFACE (ATK_TYPE_EDITABLE_TEXT, atk_editable_text_interface_init)
                          G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init))

gtk/a11y/gtktextviewaccessible.h

@@ -22,7 +22,7 @@
 #error "Only <gtk/gtk-a11y.h> can be included directly."
 #endif
 
-#include <gtk/a11y/gtkcontaineraccessible.h>
+#include <gtk/a11y/gtkwidgetaccessible.h>
 
 G_BEGIN_DECLS
 
@@ -39,14 +39,14 @@ typedef struct _GtkTextViewAccessiblePrivate GtkTextViewAccessiblePrivate;
 
 struct _GtkTextViewAccessible
 {
-  GtkContainerAccessible parent;
+  GtkWidgetAccessible parent;
 
   GtkTextViewAccessiblePrivate *priv;
 };
 
 struct _GtkTextViewAccessibleClass
 {
-  GtkContainerAccessibleClass parent_class;
+  GtkWidgetAccessibleClass parent_class;
 };
 
 GDK_AVAILABLE_IN_ALL

gtk/gtktextview.c

@@ -155,7 +155,7 @@ enum
   TEXT_HANDLE_N_HANDLES
 };
 
-struct _GtkTextViewPrivate 
+struct _GtkTextViewPrivate
 {
   GtkTextLayout *layout;
   GtkTextBuffer *buffer;
@@ -561,14 +561,6 @@ static void     gtk_text_view_set_vadjustment_values (GtkTextView   *text_view);
 static void gtk_text_view_update_im_spot_location (GtkTextView *text_view);
 static void gtk_text_view_insert_emoji (GtkTextView *text_view);
 
-/* Container methods */
-static void gtk_text_view_add    (GtkContainer *container,
-                                  GtkWidget    *child);
-static void gtk_text_view_remove (GtkContainer *container,
-                                  GtkWidget    *child);
-static void gtk_text_view_forall (GtkContainer *container,
-                                  GtkCallback   callback,
-                                  gpointer      callback_data);
 static void update_node_ordering (GtkWidget    *widget);
 
 /* GtkTextHandle handlers */
@@ -661,7 +653,7 @@ static gint           text_window_get_height      (GtkTextWindow     *win);
 
 static guint signals[LAST_SIGNAL] = { 0 };
 
-G_DEFINE_TYPE_WITH_CODE (GtkTextView, gtk_text_view, GTK_TYPE_CONTAINER,
+G_DEFINE_TYPE_WITH_CODE (GtkTextView, gtk_text_view, GTK_TYPE_WIDGET,
                          G_ADD_PRIVATE (GtkTextView)
                          G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL))
 
@@ -803,7 +795,6 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
 {
   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
 
   /* Default handlers and virtual methods
    */
@@ -822,10 +813,6 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
   widget_class->size_allocate = gtk_text_view_size_allocate;
   widget_class->snapshot = gtk_text_view_snapshot;
 
-  container_class->add = gtk_text_view_add;
-  container_class->remove = gtk_text_view_remove;
-  container_class->forall = gtk_text_view_forall;
-
   klass->move_cursor = gtk_text_view_move_cursor;
   klass->set_anchor = gtk_text_view_set_anchor;
   klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
@@ -3776,11 +3763,12 @@ gtk_text_view_remove_validate_idles (GtkTextView *text_view)
 static void
 gtk_text_view_dispose (GObject *object)
 {
-  GtkTextView *text_view;
-  GtkTextViewPrivate *priv;
+  GtkTextView *text_view = GTK_TEXT_VIEW (object);
+  GtkTextViewPrivate *priv = text_view->priv;
+  GtkWidget *child;
 
-  text_view = GTK_TEXT_VIEW (object);
-  priv = text_view->priv;
+  while ((child = gtk_widget_get_first_child (GTK_WIDGET (text_view))))
+    gtk_text_view_remove (text_view, child);
 
   gtk_text_view_remove_validate_idles (text_view);
   gtk_text_view_set_buffer (text_view, NULL);
@@ -5734,26 +5722,10 @@ gtk_text_view_snapshot (GtkWidget   *widget,
     }
 }
 
-/*
- * Container
- */
-
-static void
-gtk_text_view_add (GtkContainer *container,
-                   GtkWidget    *child)
+void
+gtk_text_view_remove (GtkTextView *text_view,
+                      GtkWidget   *child)
 {
-  /* There isn't really a good default for what to do when
-   * using gtk_container_add() for @child. So we default to
-   * placing it at 0,0 in the text window.
-   */
-  gtk_text_view_add_overlay (GTK_TEXT_VIEW (container), child, 0, 0);
-}
-
-static void
-gtk_text_view_remove (GtkContainer *container,
-                      GtkWidget    *child)
-{
-  GtkTextView *text_view = GTK_TEXT_VIEW (container);
   GtkTextViewPrivate *priv = text_view->priv;
   AnchoredChild *ac;
 
@@ -5799,41 +5771,6 @@ gtk_text_view_remove (GtkContainer *container,
   anchored_child_free (ac);
 }
 
-static void
-gtk_text_view_forall (GtkContainer *container,
-                      GtkCallback   callback,
-                      gpointer      callback_data)
-{
-  const GList *iter;
-  GtkTextView *text_view;
-  GtkTextViewPrivate *priv;
-
-  g_return_if_fail (GTK_IS_TEXT_VIEW (container));
-  g_return_if_fail (callback != NULL);
-
-  text_view = GTK_TEXT_VIEW (container);
-  priv = text_view->priv;
-
-  if (priv->left_child)
-    callback (GTK_WIDGET (priv->left_child), callback_data);
-  if (priv->right_child)
-    callback (GTK_WIDGET (priv->right_child), callback_data);
-  if (priv->top_child)
-    callback (GTK_WIDGET (priv->top_child), callback_data);
-  if (priv->bottom_child)
-    callback (GTK_WIDGET (priv->bottom_child), callback_data);
-  if (priv->center_child)
-    callback (GTK_WIDGET (priv->center_child), callback_data);
-
-  iter = priv->anchored_children.head;
-  while (iter != NULL)
-    {
-      const AnchoredChild *ac = iter->data;
-      iter = iter->next;
-      callback (ac->widget, callback_data);
-    }
-}
-
 #define CURSOR_ON_MULTIPLIER 2
 #define CURSOR_OFF_MULTIPLIER 1
 #define CURSOR_PEND_MULTIPLIER 3

gtk/gtktextview.h

@@ -29,7 +29,7 @@
 #error "Only <gtk/gtk.h> can be included directly."
 #endif
 
-#include <gtk/gtkcontainer.h>
+#include <gtk/gtkwidget.h>
 #include <gtk/gtkimcontext.h>
 #include <gtk/gtktextbuffer.h>
 
@@ -107,7 +107,7 @@ typedef struct _GtkTextViewClass   GtkTextViewClass;
 
 struct _GtkTextView
 {
-  GtkContainer parent_instance;
+  GtkWidget parent_instance;
 
   /*< private >*/
 
@@ -150,7 +150,7 @@ struct _GtkTextView
  */
 struct _GtkTextViewClass
 {
-  GtkContainerClass parent_class;
+  GtkWidgetClass parent_class;
 
   /*< public >*/
 
@@ -329,6 +329,10 @@ void       gtk_text_view_move_overlay        (GtkTextView          *text_view,
                                               gint                  xpos,
                                               gint                  ypos);
 
+GDK_AVAILABLE_IN_ALL
+void       gtk_text_view_remove              (GtkTextView          *text_view,
+                                              GtkWidget            *child);
+
 /* Default style settings (fallbacks if no tag affects the property) */
 
 GDK_AVAILABLE_IN_ALL