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actor: Add bind_model_with_properties()

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When binding models to actors to map items to children we don't often
need the full control of a function; in many cases we just need to
specify the type of the child we want to construct and the properties
on both the item and the child that we want to bind.

We should provide a simple convenience function that does all this for
us.
This commit is contained in:
Emmanuele Bassi
2015-07-10 11:26:34 +01:00
parent eda436f0c4
commit b0e785c6c2
4 changed files with 151 additions and 24 deletions
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33
examples/actor-model.c
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@ -429,27 +429,6 @@ on_model_item_selection (GObject *model_item,
g_free (label);
}
static ClutterActor *
create_menu_item (gpointer item,
gpointer data G_GNUC_UNUSED)
{
ClutterActor *res = g_object_new (EXAMPLE_TYPE_MENU_ITEM_VIEW, NULL);
/* The label goes from the model to the view */
g_object_bind_property (item, "label",
res, "text",
G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE);
/* The selected state goes in either direction */
g_object_bind_property (item, "selected",
res, "selected",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
g_signal_connect (item, "notify::selected", G_CALLBACK (on_model_item_selection), NULL);
return res;
}
static ClutterActor *
create_menu_actor (void)
{
@ -469,6 +448,10 @@ create_menu_actor (void)
g_list_store_append (model, item);
g_signal_connect (item, "notify::selected",
G_CALLBACK (on_model_item_selection),
NULL);
g_object_unref (item);
g_free (label);
}
@ -477,9 +460,11 @@ create_menu_actor (void)
* create ClutterActor views of each item in the model, and add them
* to the menu actor
*/
clutter_actor_bind_model (menu, G_LIST_MODEL (model),
create_menu_item,
NULL, NULL);
clutter_actor_bind_model_with_properties (menu, G_LIST_MODEL (model),
EXAMPLE_TYPE_MENU_ITEM_VIEW,
"label", "text", G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE,
"selected", "selected", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE,
NULL);
/* We don't need a pointer to the model any more, so we transfer ownership
* to the menu actor; this means that the model will go away when the menu