Class
GtkMapListModel
Description [src]
final class Gtk.MapListModel : GObject.Object
implements Gio.ListModel, Gtk.SectionModel {
/* No available fields */
}A list model that maps the items in another model to different items.
GtkMapListModel uses a GtkMapListModelMapFunc.
Example: Create a list of GtkEventControllers
static gpointer
map_to_controllers (gpointer widget,
gpointer data)
{
gpointer result = gtk_widget_observe_controllers (widget);
g_object_unref (widget);
return result;
}
widgets = gtk_widget_observe_children (widget);
controllers = gtk_map_list_model_new (widgets,
map_to_controllers,
NULL, NULL);
model = gtk_flatten_list_model_new (GTK_TYPE_EVENT_CONTROLLER,
controllers);
GtkMapListModel will attempt to discard the mapped objects as soon as
they are no longer needed and recreate them if necessary.
GtkMapListModel passes through sections from the underlying model.
Instance methods
Methods inherited from GListModel (5)
g_list_model_get_item
Get the item at position.
g_list_model_get_item_type
Gets the type of the items in list.
g_list_model_get_n_items
Gets the number of items in list.
g_list_model_get_object
Get the item at position.
g_list_model_items_changed
Emits the GListModel::items-changed signal on list.
Methods inherited from GtkSectionModel (2)
gtk_section_model_get_section
Query the section that covers the given position. The number of
items in the section can be computed by out_end - out_start.
since: 4.12
gtk_section_model_sections_changed
This function emits the GtkSectionModel::sections-changed
signal to notify about changes to sections.
since: 4.12
Signals
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.
Signals inherited from GListModel (1)
GListModel::items-changed
This signal is emitted whenever items were added to or removed
from list. At position, removed items were removed and added
items were added in their place.
Signals inherited from GtkSectionModel (1)
GtkSectionModel::sections-changed
Emitted when the start-of-section state of some of the items in model changes.
since: 4.12