WIP: GtkTreeListModel *gtk_tree_list_model_new(...){} < how to ?

Gtk_TreeListModel_new

@@ -0,0 +1,108 @@
+
+Constructor   GtkTreeListModelnew    ===========================================
+
+
+−>  Declaration   --------------------------------------------------------------
+
+GtkTreeListModel*
+gtk_tree_list_model_new (
+  GListModel* root,
+  gboolean passthrough,
+  gboolean autoexpand,
+  GtkTreeListModelCreateModelFunc create_func,
+  gpointer user_data,
+  GDestroyNotify user_destroy
+)
+
+
+−>  Description   --------------------------------------------------------------
+
+    Creates a new empty GtkTreeListModel displaying root with all rows collapsed.
+
+
+−>  Parameters   ---------------------------------------------------------------
+
+.  root   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
+
+    Type: GObject
+    The GListModel to use as root.
+    The called function takes ownership of the data,
+                        and is responsible for freeing it.
+
+
+.  passthrough  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
+
+    Type: gboolean
+    TRUE to pass through items from the models.
+
+
+.  autoexpand   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
+
+    Type: gboolean
+    TRUE to set the autoexpand property and expand the root model.
+
+
+.  create_func  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
+
+    Type: GtkTreeListModelCreateModelFunc
+    Function to call to create the GListModel for the children of an item.
+
+
+.  user_data .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
+
+    Type: gpointer
+    Data to pass to create_func.
+    The argument can be NULL.
+    The data is owned by the caller of the function.
+
+
+.  user_destroy .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
+
+    Type: GDestroyNotify
+    Function to call to free user_data.
+
+
+−>  Return value   -------------------------------------------------------------
+
+    Type: GtkTreeListModel
+    A newly created GtkTreeListModel.
+    The caller of the function takes ownership of the data,
+		               and is responsible for freeing it.
+
+
+>>>   https://docs.gtk.org/gtk4/ctor.TreeListModel.new.html   <<<
+
+
+
+
+
+
+
+
+Method   Gio  Conditions list   ================================================
+
+
+−>  Declaration   --------------------------------------------------------------
+
+gchar** g_conditions_list (GConditions* conditions)
+
+−>   Description   -------------------------------------------------------------
+
+Gets the list of conditions.
+The list is the list of strings for which it is not an error to call g_conditions_get().
+There is little reason to call this function from “normal” code,
+  since you should already know what conditions are in your schema.
+  This function may still be useful there for introspection reasons, however.
+You should free the return value with g_strfreev() when you are done with it.
+
+
+−>   Return value   ------------------------------------------------------------
+
+Type: An array of utf8
+A list of the conditions values and parents, in no defined order.
+The array is NULL-terminated.
+The caller of the method takes ownership of the data,
+                         and is responsible for freeing it.
+Each element is a NUL terminated UTF-8 string.
+
+from    >>>   https://docs.gtk.org/gio/method.Settings.list_children.html   <<<

src/ui/tree.c

@@ -42,6 +42,13 @@ struct _TreeItem
   TreeItem       *children;
 };
 
+void        //  https://docs.gtk.org/gtk4/method.StringList.take.html
+gtk_string_list_take (
+  GtkStringList* self,
+  char* string
+)
+{}
+
 //  tree data
 static TreeItem E[] = {NULL}, F[] = {NULL}, G[] = {NULL}, H[] = {NULL};
 static TreeItem I[] = {NULL}, K[] = {NULL}, N[] = {NULL}, M[] = {NULL};
@@ -52,6 +59,37 @@ static TreeItem A[] = {{"D", D}, {NULL}}, B[] = {{"E", E}, {NULL}};
 static TreeItem R[] = {{"A", A}, {"B", B}, {"C", C}, {NULL}};
 static TreeItem O[] = {{"ROOT", R}, {NULL}}; //  Artefact added for symmetry
 
+
+static void
+setup_listitem_cb (GtkListItemFactory *factory,
+                   GtkListItem        *list_item)
+{
+  GtkWidget *label = gtk_label_new ("");
+  gtk_list_item_set_child (list_item, label);
+
+
+    //factory = gtk_signal_list_item_factory_new ();
+    //GListModel my_model = NULL;
+    //view = gtk_list_view_new (model, factory);
+
+    //g_signal_connect (factory, "setup", setup_listitem_cb, NULL);
+    //g_signal_connect (factory, "bind", bind_listitem_cb, NULL);
+
+}
+
+static void
+bind_listitem_cb_complex (GtkListItemFactory *factory,
+                  GtkListItem        *list_item)
+{
+  GtkWidget *label;
+  TreeItem *obj;
+
+  label = gtk_list_item_get_child (list_ite
+  obj = gtk_list_item_get_item (list_item);
+  gtk_label_set_label (GTK_LABEL (label),
+                       my_object_get_string (obj));
+}
+
 static GtkWidget *my_tree_view;
 static GListModel *my_Glist_model = NULL;
 
@@ -146,6 +184,75 @@ static void any_user_function (GtkSignalListItemFactory *self, GtkListItem *list
 //  If your “bind” handler connects to signals on the item or does other things that require cleanup,
 //  you can use the “unbind” signal to do that cleanup. The “setup” signal has a similar counterpart called “teardown”.
 
+static GListModel *create_settings_model (gpointer item,
+                                          gpointer unused)
+{
+  GSettings *settings = item;
+  char **schemas;
+  GListStore *result;
+  guint i;
+
+  schemas = g_settings_list_children (settings);
+
+  if (schemas == NULL || schemas[0] == NULL)
+    {
+      g_free (schemas);
+      return NULL;
+    }
+
+  result = g_list_store_new (G_TYPE_SETTINGS);  //  G_TYPE_STRING
+  for (i = 0; schemas[i] != NULL; i++)
+    {
+      GSettings *child = g_settings_get_child (settings, schemas[i]);
+      g_list_store_append (result, child);
+      g_object_unref (child);
+    }
+
+  g_strfreev (schemas);
+
+  return G_LIST_MODEL (result);
+}
+
+GtkTreeListModel*
+gtk_tree_list_model_new (
+  GListModel* root,
+  gboolean passthrough,
+  gboolean autoexpand,
+  GtkTreeListModelCreateModelFunc create_func,
+  gpointer user_data,
+  GDestroyNotify user_destroy
+)
+{}
+
+//  GListModel truc;  gtk_tree_list_model_new(&truc)
+//  GListModel *truc;  gtk_tree_list_model_new(truc,0,0,NULL,NULL,NULL);
+
+typedef struct _GListModel GListModel;
+
+struct GListModelInterface {
+  GTypeInterface g_iface;
+  GType     (* get_item_type)   (GListModel *list);
+  guint     (* get_n_items)     (GListModel *list);
+  gpointer  (* get_item)        (GListModel *list,
+                                 guint       position);
+};
+
+/*
+ *  Parameters :
+ *      list        the GListModel that changed
+ *      position    the position at which list changed
+ *      removed     the number of items removed
+ *      added       the number of items added
+ *      user_data   user data set when the signal handler was connected.
+ * Flags: Run Last
+*/
+void
+user_function (GListModel *list,
+               guint       position,
+               guint       removed,
+               guint       added,
+               gpointer    user_data)
+{}
 
 //------------------------------------------------------------------------------
 
@@ -156,11 +263,17 @@ static void any_user_function (GtkSignalListItemFactory *self, GtkListItem *list
 // https://gnome.pages.gitlab.gnome.org/libsoup/gio/GListModel.html
 // https://blog.gtk.org/2020/09/05/a-primer-on-gtklistview/  <<<  Factory mechanism
 // https://docs.gtk.org/gtk4/class.ListItemFactory.html  <<<
+<<<<<<< HEAD
 // https://www.typeerror.org/docs/gtk~4.0/gtksignallistitemfactory
 // https://developer-old.gnome.org/gtk4/stable/GtkListView.html  <<<  copy that !
+=======
+>>>>>>> afc2bd0 (WIP: GtkTreeListModel *gtk_tree_list_model_new(...){}  <  how to ?)
 // https://docs.gtk.org/gtk4/class.ListItem.html
 // https://docs.gtk.org/gtk4/ctor.TreeListModel.new.html ***
 // https://blog.gtk.org/2020/06/08/more-on-lists-in-gtk-4/ ***
 // https://gitlab.gnome.org/GNOME/gtk/-/blob/main/demos/gtk-demo/listview_settings.c   GtkBuilder *builder;  (line 216)
 // https://discourse.gnome.org/t/how-can-i-get-the-expanded-collapsed-items-in-the-new-gtktreelistmodel-implementation/16824
+<<<<<<< HEAD
 // https://developer-old.gnome.org/gtk4/stable/GtkSignalListItemFactory.html
+=======
+>>>>>>> afc2bd0 (WIP: GtkTreeListModel *gtk_tree_list_model_new(...){}  <  how to ?)