void
rut_graphable_add_child (RutObject *parent, RutObject *child)
{
RutGraphableProps *parent_props =
rut_object_get_properties (parent, RUT_INTERFACE_ID_GRAPHABLE);
RutGraphableVTable *parent_vtable =
rut_object_get_vtable (parent, RUT_INTERFACE_ID_GRAPHABLE);
RutGraphableProps *child_props =
rut_object_get_properties (child, RUT_INTERFACE_ID_GRAPHABLE);
RutGraphableVTable *child_vtable =
rut_object_get_vtable (child, RUT_INTERFACE_ID_GRAPHABLE);
RutObject *old_parent = child_props->parent;
rut_refable_claim (child, parent);
if (old_parent)
rut_graphable_remove_child (child);
child_props->parent = parent;
if (child_vtable && child_vtable->parent_changed)
child_vtable->parent_changed (child, old_parent, parent);
if (parent_vtable && parent_vtable->child_added)
parent_vtable->child_added (parent, child);
/* XXX: maybe this should be deferred to parent_vtable->child_added ? */
g_queue_push_tail (&parent_props->children, child);
}
void
rut_graphable_remove_child (RutObject *child)
{
RutGraphableProps *child_props =
rut_object_get_properties (child, RUT_INTERFACE_ID_GRAPHABLE);
RutObject *parent = child_props->parent;
RutGraphableVTable *parent_vtable;
RutGraphableProps *parent_props;
if (!parent)
return;
parent_vtable = rut_object_get_vtable (parent, RUT_INTERFACE_ID_GRAPHABLE);
parent_props = rut_object_get_properties (parent, RUT_INTERFACE_ID_GRAPHABLE);
/* Note: we set ->parent to NULL here to avoid re-entrancy so
* ->child_removed can be a general function for removing a child
* that might itself call rut_graphable_remove_child() */
child_props->parent = NULL;
if (parent_vtable->child_removed)
parent_vtable->child_removed (parent, child);
g_queue_remove (&parent_props->children, child);
rut_refable_release (child, parent);
}
void *
rut_refable_simple_ref (void *object)
{
int *ref_count = rut_object_get_properties (object,
RUT_INTERFACE_ID_REF_COUNTABLE);
(*ref_count)++;
return object;
}
static RutObject *
_rut_graphable_get_parent (RutObject *child)
{
RutGraphableProps *child_props =
rut_object_get_properties (child, RUT_INTERFACE_ID_GRAPHABLE);
return child_props->parent;
}
static void
reshape_cb (RutShape *shape, void *user_data)
{
RutComponentableProps *componentable =
rut_object_get_properties (shape, RUT_INTERFACE_ID_COMPONENTABLE);
RutEntity *entity = componentable->entity;
rig_dirty_entity_pipelines (entity);
}
void
rut_graphable_remove_all_children (RutObject *parent)
{
RutGraphableProps *parent_props =
rut_object_get_properties (parent, RUT_INTERFACE_ID_GRAPHABLE);
RutObject *child;
while ((child = g_queue_pop_tail (&parent_props->children)))
rut_graphable_remove_child (child);
}
void
rut_graphable_init (RutObject *object)
{
RutGraphableProps *props =
rut_object_get_properties (object, RUT_INTERFACE_ID_GRAPHABLE);
props->parent = NULL;
props->children.head = NULL;
props->children.tail = NULL;
props->children.length = 0;
}
void
rut_simple_introspectable_destroy (RutObject *object)
{
RutSimpleIntrospectableProps *props =
rut_object_get_properties (object, RUT_INTERFACE_ID_SIMPLE_INTROSPECTABLE);
RutProperty *properties = props->first_property;
int i;
for (i = 0; i < props->n_properties; i++)
rut_property_destroy (&properties[i]);
}
RutObject *
rut_graphable_first (RutObject *parent)
{
RutGraphableProps *graphable =
rut_object_get_properties (parent, RUT_INTERFACE_ID_GRAPHABLE);
if (graphable->children.head)
return graphable->children.head->data;
else
return NULL;
}
void
rut_graphable_destroy (RutObject *object)
{
RutGraphableProps *props =
rut_object_get_properties (object, RUT_INTERFACE_ID_GRAPHABLE);
/* The node shouldn't have a parent, because if it did then it would
* still have a reference and it shouldn't be being destroyed */
g_warn_if_fail (props->parent == NULL);
rut_graphable_remove_all_children (object);
}
void
rut_graphable_apply_transform (RutObject *graphable,
CoglMatrix *transform_matrix)
{
int depth = 0;
RutObject **transform_nodes;
RutObject *node = graphable;
int i;
do {
RutGraphableProps *graphable_priv =
rut_object_get_properties (node, RUT_INTERFACE_ID_GRAPHABLE);
depth++;
node = graphable_priv->parent;
} while (node);
transform_nodes = g_alloca (sizeof (RutObject *) * depth);
node = graphable;
i = 0;
do {
RutGraphableProps *graphable_priv;
if (rut_object_is (node, RUT_INTERFACE_ID_TRANSFORMABLE))
transform_nodes[i++] = node;
graphable_priv =
rut_object_get_properties (node, RUT_INTERFACE_ID_GRAPHABLE);
node = graphable_priv->parent;
} while (node);
for (i--; i >= 0; i--)
{
const CoglMatrix *matrix = rut_transformable_get_matrix (transform_nodes[i]);
cogl_matrix_multiply (transform_matrix, transform_matrix, matrix);
}
}
void
rut_refable_simple_unref (void *object)
{
int *ref_count = rut_object_get_properties (object,
RUT_INTERFACE_ID_REF_COUNTABLE);
if (--(*ref_count) < 1)
{
RutRefableVTable *vtable =
rut_object_get_vtable (object, RUT_INTERFACE_ID_REF_COUNTABLE);
g_assert (*ref_count == 0);
vtable->free (object);
}
}
void
rut_simple_introspectable_foreach_property (RutObject *object,
RutIntrospectablePropertyCallback callback,
void *user_data)
{
RutSimpleIntrospectableProps *priv =
rut_object_get_properties (object, RUT_INTERFACE_ID_SIMPLE_INTROSPECTABLE);
int i;
for (i = 0; i < priv->n_properties; i++)
{
RutProperty *property = priv->first_property + i;
callback (property, user_data);
}
}
void
rut_simple_introspectable_register_properties (RutObject *object,
RutProperty *first_property)
{
RutSimpleIntrospectableProps *props =
rut_object_get_properties (object, RUT_INTERFACE_ID_SIMPLE_INTROSPECTABLE);
RutPropertySpec *first_spec = first_property->spec;
int n;
for (n = 0; first_spec[n].name; n++)
;
props->first_property = first_property;
props->n_properties = n;
}
RutObject *
rut_graphable_nth (RutObject *parent, int n)
{
RutGraphableProps *graphable =
rut_object_get_properties (parent, RUT_INTERFACE_ID_GRAPHABLE);
GList *l;
int i;
for (l = graphable->children.head, i = 0; l && i < n; l = l->next, i++)
;
if (l)
return l->data;
else
return NULL;
}
RutProperty *
rut_simple_introspectable_lookup_property (RutObject *object,
const char *name)
{
RutSimpleIntrospectableProps *priv =
rut_object_get_properties (object, RUT_INTERFACE_ID_SIMPLE_INTROSPECTABLE);
int i;
for (i = 0; i < priv->n_properties; i++)
{
RutProperty *property = priv->first_property + i;
if (strcmp (property->spec->name, name) == 0)
return property;
}
return NULL;
}
RutCamera *
rut_graphable_find_camera (RutObject *object)
{
do {
RutGraphableProps *graphable_priv;
if (rut_object_get_type (object) == &rut_camera_type)
return RUT_CAMERA (object);
graphable_priv =
rut_object_get_properties (object, RUT_INTERFACE_ID_GRAPHABLE);
object = graphable_priv->parent;
} while (object);
return NULL;
}
void
rut_light_set_uniforms (RutLight *light,
CoglPipeline *pipeline)
{
RutComponentableProps *component =
rut_object_get_properties (light, RUT_INTERFACE_ID_COMPONENTABLE);
RutEntity *entity = component->entity;
float origin[3] = {0, 0, 0};
float norm_direction[3] = {0, 0, 1};
int location;
rut_entity_get_transformed_position (entity, origin);
rut_entity_get_transformed_position (entity, norm_direction);
cogl_vector3_subtract (norm_direction, norm_direction, origin);
cogl_vector3_normalize (norm_direction);
location = cogl_pipeline_get_uniform_location (pipeline,
"light0_direction_norm");
cogl_pipeline_set_uniform_float (pipeline,
location,
3, 1,
norm_direction);
location = cogl_pipeline_get_uniform_location (pipeline,
"light0_ambient");
cogl_pipeline_set_uniform_float (pipeline,
location,
4, 1,
get_color_array (&light->ambient));
location = cogl_pipeline_get_uniform_location (pipeline,
"light0_diffuse");
cogl_pipeline_set_uniform_float (pipeline,
location,
4, 1,
get_color_array (&light->diffuse));
location = cogl_pipeline_get_uniform_location (pipeline,
"light0_specular");
cogl_pipeline_set_uniform_float (pipeline,
location,
4, 1,
get_color_array (&light->specular));
}
void
rut_simple_introspectable_init (RutObject *object,
RutPropertySpec *specs,
RutProperty *properties)
{
RutSimpleIntrospectableProps *props =
rut_object_get_properties (object, RUT_INTERFACE_ID_SIMPLE_INTROSPECTABLE);
int n;
for (n = 0; specs[n].name; n++)
{
rut_property_init (&properties[n],
&specs[n],
object);
}
props->first_property = properties;
props->n_properties = n;
}
static RutTraverseVisitFlags
_rut_graphable_traverse_breadth (RutObject *graphable,
RutTraverseCallback callback,
void *user_data)
{
GQueue *queue = g_queue_new ();
int dummy;
int current_depth = 0;
RutTraverseVisitFlags flags = 0;
g_queue_push_tail (queue, graphable);
g_queue_push_tail (queue, &dummy); /* use to delimit depth changes */
while ((graphable = g_queue_pop_head (queue)))
{
if (graphable == &dummy)
{
current_depth++;
g_queue_push_tail (queue, &dummy);
continue;
}
flags = callback (graphable, current_depth, user_data);
if (flags & RUT_TRAVERSE_VISIT_BREAK)
break;
else if (!(flags & RUT_TRAVERSE_VISIT_SKIP_CHILDREN))
{
RutGraphableProps *props =
rut_object_get_properties (graphable, RUT_INTERFACE_ID_GRAPHABLE);
GList *l;
for (l = props->children.head; l; l = l->next)
g_queue_push_tail (queue, l->data);
}
}
g_queue_free (queue);
return flags;
}
static RutTraverseVisitFlags
_rut_graphable_traverse_depth (RutObject *graphable,
RutTraverseCallback before_children_callback,
RutTraverseCallback after_children_callback,
int current_depth,
void *user_data)
{
RutTraverseVisitFlags flags;
flags = before_children_callback (graphable, current_depth, user_data);
if (flags & RUT_TRAVERSE_VISIT_BREAK)
return RUT_TRAVERSE_VISIT_BREAK;
if (!(flags & RUT_TRAVERSE_VISIT_SKIP_CHILDREN))
{
RutGraphableProps *props =
rut_object_get_properties (graphable, RUT_INTERFACE_ID_GRAPHABLE);
GList *l;
for (l = props->children.head; l; l = l->next)
{
flags = _rut_graphable_traverse_depth (l->data,
before_children_callback,
after_children_callback,
current_depth + 1,
user_data);
if (flags & RUT_TRAVERSE_VISIT_BREAK)
return RUT_TRAVERSE_VISIT_BREAK;
}
}
if (after_children_callback)
return after_children_callback (graphable, current_depth, user_data);
else
return RUT_TRAVERSE_VISIT_CONTINUE;
}