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WIP: item value (a string) = gtk_string_object_get_string (g_list_model_get_item (selection_model, position))

This commit is contained in:
Jean Sirmai 2024-01-23 11:44:00 +01:00
parent baf6263d15
commit 8094259bb2
Signed by: jean
GPG Key ID: FB3115C340E057E3
1 changed files with 12 additions and 13 deletions
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25
src/ui/sand_box.c
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@ -20,7 +20,6 @@
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <gtk-4.0/gtk/gtk.h>
#include <gdk/gdk.h>
@ -40,16 +39,22 @@ static void setup_cb (GtkSignalListItemFactory *self, GtkListItem *my_list_item,
static void bind_cb (GtkSignalListItemFactory *self, GtkListItem *my_list_item, gpointer user_data)
{
GtkWidget *my_label = gtk_list_item_get_child (my_list_item);
/* Strobj is owned by the instance. Caller mustn't change or destroy it. */
/* my_string_object is owned by the instance. Caller mustn't change or destroy it. */
GtkStringObject *my_string_object = gtk_list_item_get_item (my_list_item);
/* The string returned by gtk_string_object_get_string is owned by the instance. */
//printf("%s\n", gtk_string_object_get_string (my_string_object));
gtk_label_set_text (GTK_LABEL (my_label), gtk_string_object_get_string (my_string_object));
}
static void on_selection_change (GtkSelectionModel* self, guint position, guint n_items, gpointer user_data)
{
printf("Premier élement ayant changé d'état : %d (%d ont changé d'état)\n", position, n_items);
printf("list size = %d item type = %d\
position (premier élement ayant changé d'état) = %2d %7s\
nombre d'éléments ayant changé d'état = %2d\n",
g_list_model_get_n_items (self),
g_list_model_get_item_type(self),
position,
gtk_string_object_get_string(g_list_model_get_item(self, position)),
n_items );
}
enum { COLUMN_DESCRIPTION };
@ -58,7 +63,6 @@ static void and_now_let_s_climb_that_tree (GtkWidget *in_that_box)
{
const gchar *my_array[] = {"zero", "one", "two", "three", "four", "five",
"six", "seven", "eight", "nine", "ten", "eleven", "twelve", NULL};
// https://toshiocp.github.io/Gtk4-tutorial/sec29.html
GtkStringList *my_string_list = gtk_string_list_new ((const char * const *) my_array);
@ -67,18 +71,11 @@ static void and_now_let_s_climb_that_tree (GtkWidget *in_that_box)
if (gtk_single_selection_get_selected_item (my_selection_model))
gtk_selection_model_selection_changed (my_selection_model, 0, 1);
// factory = GtkSignalListItemFactory(setup_cb, bind_cb)
GtkListItemFactory *my_factory = gtk_signal_list_item_factory_new ();
g_signal_connect (my_factory, "setup", G_CALLBACK (setup_cb), NULL);
g_signal_connect (my_factory, "bind", G_CALLBACK (bind_cb), NULL);
g_signal_connect (my_selection_model, "selection-changed", G_CALLBACK (on_selection_change), NULL);
GtkWidget *treeview;
treeview = gtk_tree_view_new_with_model (my_selection_model);
gtk_widget_set_vexpand (treeview, TRUE);
gtk_tree_view_set_search_column (GTK_TREE_VIEW (treeview),
COLUMN_DESCRIPTION);
GtkWidget *my_list_view = gtk_list_view_new (GTK_SELECTION_MODEL (my_selection_model), my_factory);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (in_that_box), my_list_view);
}
@ -99,8 +96,10 @@ void on_activate_window_creation (GtkApplication *app, gpointer data) {
if (data) {g_print (data); g_print (" and is displayed by [sand_box.c / on_activate_window_creation()]\n");}
}
//------------------------------------------------------------------------------
//-------------------------------------------------------------------- notes
// guix shell -m manifest.scm && pkg-config --libs gtk4 make clean && clear && time make run
// my local widgets examples are in user/jean/01/GTK4/tree (learning)/The_Gnome_way/demos/gtk-demo
// https://toshiocp.github.io/Gtk4-tutorial/sec29.html
// factory = GtkSignalListItemFactory(setup_cb, bind_cb)