GObject parent_instance;
gint foo;
+ gint bar;
gdouble value;
gboolean toggle;
} BindingSource;
PROP_SOURCE_0,
PROP_SOURCE_FOO,
+ PROP_SOURCE_BAR,
PROP_SOURCE_VALUE,
PROP_SOURCE_TOGGLE
};
source->foo = g_value_get_int (value);
break;
+ case PROP_SOURCE_BAR:
+ source->bar = g_value_get_int (value);
+ break;
+
case PROP_SOURCE_VALUE:
source->value = g_value_get_double (value);
break;
g_value_set_int (value, source->foo);
break;
+ case PROP_SOURCE_BAR:
+ g_value_set_int (value, source->bar);
+ break;
+
case PROP_SOURCE_VALUE:
g_value_set_double (value, source->value);
break;
-1, 100,
0,
G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class, PROP_SOURCE_BAR,
+ g_param_spec_int ("bar", "Bar", "Bar",
+ -1, 100,
+ 0,
+ G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, PROP_SOURCE_VALUE,
g_param_spec_double ("value", "Value", "Value",
-100.0, 200.0,
static gboolean
celsius_to_fahrenheit (GBinding *binding,
- const GValue *source_value,
- GValue *target_value,
+ const GValue *from_value,
+ GValue *to_value,
gpointer user_data G_GNUC_UNUSED)
{
gdouble celsius, fahrenheit;
- g_assert (G_VALUE_HOLDS (source_value, G_TYPE_DOUBLE));
- g_assert (G_VALUE_HOLDS (target_value, G_TYPE_DOUBLE));
+ g_assert (G_VALUE_HOLDS (from_value, G_TYPE_DOUBLE));
+ g_assert (G_VALUE_HOLDS (to_value, G_TYPE_DOUBLE));
- celsius = g_value_get_double (source_value);
+ celsius = g_value_get_double (from_value);
fahrenheit = (9 * celsius / 5) + 32.0;
if (g_test_verbose ())
g_print ("Converting %.2fC to %.2fF\n", celsius, fahrenheit);
- g_value_set_double (target_value, fahrenheit);
+ g_value_set_double (to_value, fahrenheit);
return TRUE;
}
static gboolean
fahrenheit_to_celsius (GBinding *binding,
- const GValue *source_value,
- GValue *target_value,
+ const GValue *from_value,
+ GValue *to_value,
gpointer user_data G_GNUC_UNUSED)
{
gdouble celsius, fahrenheit;
- g_assert (G_VALUE_HOLDS (source_value, G_TYPE_DOUBLE));
- g_assert (G_VALUE_HOLDS (target_value, G_TYPE_DOUBLE));
+ g_assert (G_VALUE_HOLDS (from_value, G_TYPE_DOUBLE));
+ g_assert (G_VALUE_HOLDS (to_value, G_TYPE_DOUBLE));
- fahrenheit = g_value_get_double (source_value);
+ fahrenheit = g_value_get_double (from_value);
celsius = 5 * (fahrenheit - 32.0) / 9;
if (g_test_verbose ())
g_print ("Converting %.2fF to %.2fC\n", fahrenheit, celsius);
- g_value_set_double (target_value, celsius);
+ g_value_set_double (to_value, celsius);
return TRUE;
}
target, "bar",
G_BINDING_DEFAULT);
+ g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
g_assert ((BindingSource *) g_binding_get_source (binding) == source);
g_assert ((BindingTarget *) g_binding_get_target (binding) == target);
g_assert_cmpstr (g_binding_get_source_property (binding), ==, "foo");
g_object_unref (source);
g_object_unref (target);
+ g_assert (binding == NULL);
}
static void
binding = g_object_bind_property (source, "foo",
target, "bar",
G_BINDING_BIDIRECTIONAL);
+ g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
g_object_set (source, "foo", 42, NULL);
g_assert_cmpint (source->foo, ==, target->bar);
g_object_unref (source);
g_object_unref (target);
+ g_assert (binding == NULL);
}
static void
target, "value",
G_BINDING_BIDIRECTIONAL);
+ g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
+
g_object_get (binding,
"source", &src,
"source-property", &src_prop,
g_object_unref (target);
g_object_unref (source);
+ g_assert (binding == NULL);
}
static void
/* A -> B, B -> C */
binding_1 = g_object_bind_property (a, "foo", b, "foo", G_BINDING_BIDIRECTIONAL);
+ g_object_add_weak_pointer (G_OBJECT (binding_1), (gpointer *) &binding_1);
+
binding_2 = g_object_bind_property (b, "foo", c, "foo", G_BINDING_BIDIRECTIONAL);
+ g_object_add_weak_pointer (G_OBJECT (binding_2), (gpointer *) &binding_2);
/* verify the chain */
g_object_set (a, "foo", 42, NULL);
/* unbind A -> B and B -> C */
g_object_unref (binding_1);
+ g_assert (binding_1 == NULL);
g_object_unref (binding_2);
+ g_assert (binding_2 == NULL);
/* bind A -> C directly */
binding_2 = g_object_bind_property (a, "foo", c, "foo", G_BINDING_BIDIRECTIONAL);
g_object_unref (target);
}
+static void
+binding_same_object (void)
+{
+ BindingSource *source = g_object_new (binding_source_get_type (),
+ "foo", 100,
+ "bar", 50,
+ NULL);
+ GBinding *binding;
+
+ binding = g_object_bind_property (source, "foo",
+ source, "bar",
+ G_BINDING_BIDIRECTIONAL);
+ g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
+
+ g_object_set (source, "foo", 10, NULL);
+ g_assert_cmpint (source->foo, ==, 10);
+ g_assert_cmpint (source->bar, ==, 10);
+ g_object_set (source, "bar", 30, NULL);
+ g_assert_cmpint (source->foo, ==, 30);
+ g_assert_cmpint (source->bar, ==, 30);
+
+ g_object_unref (source);
+ g_assert (binding == NULL);
+}
+
+static void
+binding_unbind (void)
+{
+ BindingSource *source = g_object_new (binding_source_get_type (), NULL);
+ BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
+ GBinding *binding;
+
+ binding = g_object_bind_property (source, "foo",
+ target, "bar",
+ G_BINDING_DEFAULT);
+ g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
+
+ g_object_set (source, "foo", 42, NULL);
+ g_assert_cmpint (source->foo, ==, target->bar);
+
+ g_object_set (target, "bar", 47, NULL);
+ g_assert_cmpint (source->foo, !=, target->bar);
+
+ g_binding_unbind (binding);
+ g_assert (binding == NULL);
+
+ g_object_set (source, "foo", 0, NULL);
+ g_assert_cmpint (source->foo, !=, target->bar);
+
+ g_object_unref (source);
+ g_object_unref (target);
+}
+
int
main (int argc, char *argv[])
{
- g_type_init ();
g_test_init (&argc, &argv, NULL);
g_test_bug_base ("http://bugzilla.gnome.org/");
g_test_add_func ("/binding/chain", binding_chain);
g_test_add_func ("/binding/sync-create", binding_sync_create);
g_test_add_func ("/binding/invert-boolean", binding_invert_boolean);
+ g_test_add_func ("/binding/same-object", binding_same_object);
+ g_test_add_func ("/binding/unbind", binding_unbind);
return g_test_run ();
}