diff --git a/eek/eek-container.c b/eek/eek-container.c index d8f53cff..8360a21c 100644 --- a/eek/eek-container.c +++ b/eek/eek-container.c @@ -61,6 +61,7 @@ eek_container_real_add_child (EekContainer *self, g_object_ref_sink (child); priv->children = g_slist_prepend (priv->children, child); + eek_element_set_parent (child, self); } static void @@ -75,6 +76,7 @@ eek_container_real_remove_child (EekContainer *self, g_return_if_fail (head); g_object_unref (child); priv->children = g_slist_remove_link (priv->children, head); + eek_element_set_parent (child, NULL); } static void diff --git a/eek/eek-element.c b/eek/eek-element.c index f22fc0c0..978fce2d 100644 --- a/eek/eek-element.c +++ b/eek/eek-element.c @@ -33,6 +33,7 @@ #endif /* HAVE_CONFIG_H */ #include "eek-element.h" +#include "eek-container.h" enum { PROP_0, @@ -51,8 +52,35 @@ struct _EekElementPrivate { gchar *name; EekBounds bounds; + EekContainer *parent; }; +static void +eek_element_real_set_parent (EekElement *self, + EekContainer *parent) +{ + EekElementPrivate *priv = EEK_ELEMENT_GET_PRIVATE(self); + + if (!parent) { + g_return_if_fail (priv->parent); + /* release self-reference acquired when setting parent */ + g_object_unref (self); + priv->parent = NULL; + } else { + g_return_if_fail (!priv->parent); + g_object_ref_sink (self); + priv->parent = parent; + } +} + +static EekContainer * +eek_element_real_get_parent (EekElement *self) +{ + EekElementPrivate *priv = EEK_ELEMENT_GET_PRIVATE(self); + + return priv->parent; +} + static void eek_element_real_set_name (EekElement *self, const gchar *name) @@ -156,6 +184,8 @@ eek_element_class_init (EekElementClass *klass) g_type_class_add_private (gobject_class, sizeof (EekElementPrivate)); + klass->set_parent = eek_element_real_set_parent; + klass->get_parent = eek_element_real_get_parent; klass->set_name = eek_element_real_set_name; klass->get_name = eek_element_real_get_name; klass->set_bounds = eek_element_real_set_bounds; @@ -204,6 +234,36 @@ eek_element_init (EekElement *self) memset (&priv->bounds, 0, sizeof priv->bounds); } +/** + * eek_element_set_parent: + * @element: an #EekElement + * @parent: an #EekContainer + * + * Set the parent of @element to @parent. + */ +void +eek_element_set_parent (EekElement *element, + EekContainer *parent) +{ + g_return_if_fail (EEK_IS_ELEMENT(element)); + g_return_if_fail (EEK_IS_CONTAINER(parent)); + EEK_ELEMENT_GET_CLASS(element)->set_parent (element, parent); +} + +/** + * eek_element_get_parent: + * @element: an #EekElement + * + * Get the parent of @element. + * Returns: an #EekContainer if the parent is set + */ +EekContainer * +eek_element_get_parent (EekElement *element) +{ + g_return_val_if_fail (EEK_IS_ELEMENT(element), NULL); + return EEK_ELEMENT_GET_CLASS(element)->get_parent (element); +} + /** * eek_element_set_name: * @element: an #EekElement diff --git a/eek/eek-element.h b/eek/eek-element.h index 07233b2d..bb12735b 100644 --- a/eek/eek-element.h +++ b/eek/eek-element.h @@ -46,7 +46,9 @@ struct _EekElementClass { /*< private >*/ GInitiallyUnownedClass parent_class; - + void (* set_parent) (EekElement *self, + EekContainer *parent); + EekContainer *(* get_parent) (EekElement *self); void (* set_name) (EekElement *self, const gchar *name); @@ -61,16 +63,19 @@ struct _EekElementClass GType eek_element_get_type (void) G_GNUC_CONST; -void eek_element_set_name (EekElement *element, - const gchar *name); +void eek_element_set_parent (EekElement *element, + EekContainer *parent); +EekContainer *eek_element_get_parent (EekElement *element); +void eek_element_set_name (EekElement *element, + const gchar *name); -G_CONST_RETURN gchar *eek_element_get_name (EekElement *element); +G_CONST_RETURN gchar *eek_element_get_name (EekElement *element); -void eek_element_set_bounds (EekElement *element, - EekBounds *bounds); +void eek_element_set_bounds (EekElement *element, + EekBounds *bounds); -void eek_element_get_bounds (EekElement *element, - EekBounds *bounds); +void eek_element_get_bounds (EekElement *element, + EekBounds *bounds); G_END_DECLS #endif /* EEK_ELEMENT_H */