WIP: menu <> model & list missing (see labo.learning...())

data/text/about_commands.txt

@@ -1,5 +1,5 @@
 
-      Dans : [space_page - mode RUN] doivent être :   ------------------------------------------------------
+      Dans : [space_page - mode RUN] doivent être :   -------------------------------------------------------------
 
       (1)  les commandes de mouvement:
       -  run/stop,    slow down/speed up,    step by step,    do/undo/redo

include/callbacks.h

@@ -63,7 +63,7 @@ void on_axis_value_change (GtkAdjustment *adjustment, gpointer data);
 
 void on_reset_image (GtkWidget *btt_reset, gpointer data);
 void on_clicked_HOME (GtkWidget *btt_reset, gpointer data);
-void on_clicked_X (GtkWidget *btt_reset, gpointer data);
+void on_clicked_MENU (GtkWidget *btt_reset, gpointer data);
 
 
 

include/widgets.h

@@ -61,6 +61,7 @@ GtkScrolledWindow *get_user_rules_tree ();
 
 void icons_for_fun (GtkHeaderBar *header_bar);
 GtkWidget *get_window_child_DATA_lab();
+void learning_menus_and_all_that_stuff(GtkMenuButton* menu_button);
 
 /******************************************************************************/
 /*                                I M A G E S                                 */

src/callbacks.c

@@ -320,8 +320,9 @@ void on_clicked_HOME (GtkWidget *btt_reset, gpointer data) {
   gtk_window_present (GTK_WINDOW (get_dialog_window()));   //   works once only !
 }
 
-void on_clicked_X (GtkWidget *btt_reset, gpointer data) {
-  printf ("callback.n_clicked_X button() presents the text_window  ( :- )  but... it works only once.\n");
+void on_clicked_MENU (GtkWidget *btt_reset, gpointer menu_button) {
+  printf ("callback.on_clicked_MENU button() presents the text_window  ( :- )  but... it works only once.\n");
+  learning_menus_and_all_that_stuff (menu_button);
   gtk_window_present (GTK_WINDOW (get_text_window()));   //   works once only !
 }
 

src/widget.c/heads.c

@@ -165,7 +165,7 @@ static void window_header_bar (GtkWindow *window, char *title){
 
   GtkButton *open_menu = GTK_BUTTON (gtk_button_new ());
   gtk_button_set_icon_name (open_menu, "open-menu-symbolic");
-  g_signal_connect (open_menu, "clicked", G_CALLBACK (on_clicked_X), no_local_data);
+  g_signal_connect (open_menu, "clicked", G_CALLBACK (on_clicked_MENU), open_menu);
   gtk_header_bar_pack_end (GTK_HEADER_BAR (header_bar), GTK_WIDGET (open_menu));
 }
 

src/widget.c/labo.c

@@ -47,10 +47,81 @@
 
 
 
+/******************************************************************************/
+/*                    E X P E R I M E N T A L    A R E A                      */
+/******************************************************************************/
+
+
+
+static void
+setup_listitem_cb (GtkListItemFactory *factory,
+                   GtkListItem        *list_item)
+{
+  GtkWidget *image;
+
+  image = gtk_image_new ();
+  gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
+  gtk_list_item_set_child (list_item, image);
+}
+
+static void
+bind_listitem_cb (GtkListItemFactory *factory,
+                  GtkListItem        *list_item)
+{
+  GtkWidget *image;
+  GAppInfo *app_info;
+
+  image = gtk_list_item_get_child (list_item);
+  app_info = gtk_list_item_get_item (list_item);
+  gtk_image_set_from_gicon (GTK_IMAGE (image), g_app_info_get_icon (app_info));
+}
+
+static void
+activate_cb (GtkListView  *list,
+             guint         position,
+             gpointer      unused)
+{
+  GAppInfo *app_info;
+
+  app_info = g_list_model_get_item (G_LIST_MODEL (gtk_list_view_get_model (list)), position);
+  g_app_info_launch (app_info, NULL, NULL, NULL);
+  g_object_unref (app_info);
+}
+
+void learning_menus_and_all_that_stuff (GtkMenuButton* menu_button) {
+  printf ("labo.learning_menus_and_all_that_stuff...()\
+  >   presents the text_window   ( ;- ))\n                    \
+      which, at the present time,...  works only once   ( :- ((\n");
+
+  gtk_window_present (GTK_WINDOW (get_text_window()));
+
+
+  GtkListItemFactory *factory = gtk_signal_list_item_factory_new ();
+  g_signal_connect (factory, "setup", G_CALLBACK (setup_listitem_cb), NULL);
+  g_signal_connect (factory, "bind", G_CALLBACK (bind_listitem_cb), NULL);
+
+  //  model =
+  GSList *list = NULL;
+  //  list = gtk_list_view_new (GTK_SELECTION_MODEL (gtk_single_selection_new (model)), factory);
+  g_signal_connect (list, "activate", G_CALLBACK (activate_cb), NULL);  //
+  gtk_menu_button_set_child (GTK_MENU_BUTTON (menu_button), NULL);  //   <<   list  (a  GtkWidget)
+
+//  https://docs.gtk.org/gtk4/class.ListView.html
+}
+
+
+
+
+
+
+/******************************************************************************/
+/*                            C O N T A I N E R S                             */
+/******************************************************************************/
 
 // https://blog.gtk.org/2020/09/08/on-list-models/  <  TODO
 // https://docs.gtk.org/gtk4/visual_index.html  <  widgets gallery
-// https://iconduck.com/sets/adwaita-icon-theme   https://iconduck.com/sets/carbon-icons
+// https://iconduck.com/sets/adwaita-icon-theme
+// https://iconduck.com/sets/carbon-icons
 // https://docs.gtk.org/gtk4/section-text-widget.html
 // https://docs.gtk.org/gtk4/class.Widget.html#height-for-width-geometry-management
 // https://docs.gtk.org/gtk4/class.TextView.html
@@ -59,6 +130,7 @@
 //  GTK_ORIENTATION_VERTICAL       GTK_ORIENTATION_HORIZONTAL
 
 
+
 void let_us_create_a_complex_useless_and_expensive_tree (struct TreeNode_t *tree_root) {
     struct TreeNode_t *a    = create_user_tree_node("We, the people");add_child_node(tree_root, a);
     struct TreeNode_t *b    = create_user_tree_node("in Order to");   add_child_node(tree_root, b);