WIP: GListStore is a simple implementation of GListModel that stores all items in memory. <<< Diego C Sampaio passe par là...

src/parsing/parsing.c

@@ -375,7 +375,8 @@ if(1)
   }
   if (VRB4) printf ("VRB4   model_get_state_arrows_nb = %ld     end   at line %ld\n",\
                              arrows_nb, xmlGetLineNo(node));
-  if (VRB4) for(int k = 0; k < c; k++) printf("%d ", *(t + k)); printf("\n");
+  if (VRB4) for(int k = 0; k < c; k++) printf("%d ", *(t + k));
+  printf("\n");
   return arrows_nb;
 }
 

src/ui/sand_box.c

@@ -45,9 +45,15 @@ void on_activate_window_creation (GtkApplication *app, gpointer data)
 }
 //-------------------------------------------------------------------------------------------------------------------------------------------
 
+//void on_activating_this_expander (GtkExpander *my_expander, gpointer my_data) {}
+//void gtk_expander_set_child      (GtkExpander* expander, GtkWidget* child) {}
+
+GListModel *my_item_create_func  (gpointer item, gpointer user_data) {return NULL;}
+
 static void on_setup_cb (GtkSignalListItemFactory *self, GtkListItem *my_list_item, gpointer user_data)
 /* Setup the widget to show in the Gtk.Listview   <<   adapted from the kriptolix example */
 {
+//    printf("...\n", gtk_string_list_get_string (GTK_STRING_LIST(user_data), 0));
     GtkWidget *my_label = gtk_label_new (NULL), *my_child_label = gtk_label_new (NULL);
     GtkWidget *my_expander = gtk_expander_new (NULL);   // ?  = gtk_expander_new (GTK_LABEL(my_list_item));
     gtk_list_item_set_child (my_list_item, my_label);
@@ -62,7 +68,17 @@ static void on_bind_cb (GtkSignalListItemFactory *self, GtkListItem *my_list_ite
     gtk_expander_set_child (GTK_EXPANDER(my_expander), gtk_list_item_get_child (my_list_item));
     GtkWidget *my_label = gtk_list_item_get_child (my_list_item); // GtkWidget *my_label = gtk_expander_get_child(my_expander);
 
-//  >>>  row = item.get_item()   <<<  How to 'translate' that, now ?
+//  >>>  row = item.get_item()  <<<     GtkTreeListRow instances are created by a GtkTreeListModel   ----------------------------
+//  https://docs.gtk.org/gtk4/class.TreeListRow.html    GtkTreeListRow is used by GtkTreeListModel to represent items.
+//                                                      It allows navigating the model as a tree and modify the state of rows.
+//                                                      GtkTreeListRow instances are created by a GtkTreeListModel
+//                                                      The GtkTreeExpander widget can make use of GtkTreeListRow objects
+//  https://docs.gtk.org/gtk4/method.TreeExpander.set_list_row.html
+//    >>>   void gtk_tree_expander_set_list_row (GtkTreeExpander *self, GtkTreeListRow  *list_row);
+//  https://docs.gtk.org/gtk4/callback.TreeListModelCreateModelFunc.html
+
+//  in add_tree_node(item){}   >>>   if (type(item) == Gtk.TreeListRow) item = item.get_item();    <<<    à 'traduire' +++
+//  --------------------------------------------------------------------------------------------------------------------------
 
 //    GObject *my_object = gtk_tree_list_row_get_item (GTK_TREE_LIST_ROW(self)); //  GListModel *gtk_tree_list_row_get_children(GtkTreeListRow *self)
 //    GtkStringObject *my_string_object = gtk_list_item_get_item (my_list_item);
@@ -88,32 +104,30 @@ static void on_selection_change (GtkStringList *my_selection_model,  guint posit
 
 //-------------------------------------------------------------------------------------------------------------------------------------------
 
-void on_activating_this_expander (GtkExpander *my_expander, gpointer my_data) {}
-void gtk_expander_set_child      (GtkExpander* expander, GtkWidget* child) {}
-GListModel *my_item_create_func  (gpointer item, gpointer user_data) {return NULL;}
-
 static void and_now_let_s_climb_that_tree (GtkWidget *in_that_box)
 {
     const gchar *my_array[] = {"zero", "one", "two", "three", "four", NULL};
     GtkStringList *my_string_list = gtk_string_list_new ((const char * const *) my_array);
     gtk_string_list_append (my_string_list, "five");
+
+    //  GType *my_item_type = g_list_model_get_item_type (G_LIST_MODEL (my_string_list));
+    GListStore *my_list_store = g_list_store_new (80);  //  = g_list_store_new (my_item_type);
+
     GtkMultiSelection *my_selection_model = gtk_multi_selection_new (G_LIST_MODEL (my_string_list));
     GtkListItemFactory *my_list_item_factory = gtk_signal_list_item_factory_new ();
-    g_signal_connect (my_list_item_factory, "setup", G_CALLBACK (on_setup_cb), NULL);
+    GtkTreeListModel *my_tree_list_model =
-    g_signal_connect (my_list_item_factory, "bind", G_CALLBACK (on_bind_cb), NULL);
+        gtk_tree_list_model_new (G_LIST_MODEL (my_string_list), 0, 0, my_item_create_func, NULL, NULL);
+    g_signal_connect (my_list_item_factory, "setup", G_CALLBACK (on_setup_cb), my_tree_list_model);
+    g_signal_connect (my_list_item_factory, "bind", G_CALLBACK (on_bind_cb), my_tree_list_model);
     g_signal_connect (my_selection_model, "selection-changed", G_CALLBACK (on_selection_change), NULL);
     GtkWidget *my_list_view = gtk_list_view_new (GTK_SELECTION_MODEL (my_selection_model), my_list_item_factory);
     gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (in_that_box), my_list_view);
-    GtkTreeListModel *my_tree_list_model =
-        gtk_tree_list_model_new (G_LIST_MODEL (my_string_list), 1, 0, my_item_create_func, NULL, NULL);
 
     srand(time(NULL));  int rank = rand() % g_list_model_get_n_items (G_LIST_MODEL (my_selection_model));
     printf("in : GListModel *item_create_func (gpointer item,...)   (line 80)     (item n°%d is %s)\n",
             rank, gtk_string_list_get_string (my_string_list, rank));
 }
 
-
-
 //-----------------------------------------|   mes notes.   |------------------------------------------
 
 /* trying to copy :  https://github.com/kriptolix/gtk4_python3_exemples/blob/main/ListView/tree_view.py
@@ -153,6 +167,10 @@ def add_tree_node(item):
             store.append(child)
         return store
 
+GListStore is a simple implementation of GListModel that stores all items in memory.
+It provides insertions, deletions, and lookups in logarithmic time
+    with a fast path for the common case of iterating the list linearly.
+
 
 def setup(widget, item):
     """Setup the widget to show in the Gtk.Listview"""