Differential D8656 Diff 27990 source/blender/blenkernel/intern/collection.c

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source/blender/blenkernel/intern/collection.c

Show First 20 Lines • Show All 402 Lines • ▼ Show 20 Lines	static Collection collection_duplicate_recursive(Main bmain,
/* If we are not doing any kind of deep-copy, we can return immediately.		/* If we are not doing any kind of deep-copy, we can return immediately.
* False do_full_process means collection_old had already been duplicated,		* False do_full_process means collection_old had already been duplicated,
* no need to redo some deep-copy on it. */		* no need to redo some deep-copy on it. */
if (!do_full_process) {		if (!do_full_process) {
return collection_new;		return collection_new;
}		}

if (do_objects) {		if (do_objects) {
		/* In master collection case we need to duplicate objects in a first independent loop,
		* otherwise depending on naming scheme and sorting, we may end up duplicating new objects we
		* just added, in some infinite loop. */
		sergeyUnsubmitted Done Inline Actions Since this is not done for master collection exclusively, better comment would be something like this: Duplicate objects and manipulate their pretense in the collection in two different loops. This avoids an infinite loop when duplicating object places it at the end of the collection, which makes the loop visit it again and a again. sergey: Since this is not done for master collection exclusively, better comment would be something…
		mont29AuthorUnsubmitted Done Inline Actions Good point. mont29: Good point.
		LISTBASE_FOREACH (CollectionObject *, cob, &collection_old->gobject) {
		Object *ob_old = cob->ob;

		if (ob_old->id.newid == NULL) {
		BKE_object_duplicate(
		bmain, ob_old, duplicate_flags, duplicate_options \| LIB_ID_DUPLICATE_IS_SUBPROCESS);
		}
		}

/* We can loop on collection_old's objects, but have to consider it mutable because with master		/* We can loop on collection_old's objects, but have to consider it mutable because with master
* collections collection_old and collection_new are the same data here. */		* collections collection_old and collection_new are the same data here. */
		sergeyUnsubmitted Done Inline Actions Is this still relevant? sergey: Is this still relevant?
		mont29AuthorUnsubmitted Done Inline Actions Yes, we are still modifying the listbase we are looping on in case of master collection. mont29: Yes, we are still modifying the listbase we are looping on in case of master collection.
LISTBASE_FOREACH_MUTABLE (CollectionObject *, cob, &collection_old->gobject) {		LISTBASE_FOREACH_MUTABLE (CollectionObject *, cob, &collection_old->gobject) {
Object *ob_old = cob->ob;		Object *ob_old = cob->ob;
Object ob_new = (Object )ob_old->id.newid;		Object ob_new = (Object )ob_old->id.newid;

if (ob_new == NULL) {		/* New object can be NULL in master collection case, since new and old objects are in same
ob_new = BKE_object_duplicate(		* collection. */
bmain, ob_old, duplicate_flags, duplicate_options \| LIB_ID_DUPLICATE_IS_SUBPROCESS);		if (ELEM(ob_new, ob_old, NULL)) {
}

if (ob_new == ob_old) {
continue;		continue;
}		}

collection_object_add(bmain, collection_new, ob_new, 0, true);		collection_object_add(bmain, collection_new, ob_new, 0, true);
collection_object_remove(bmain, collection_new, ob_old, false);		collection_object_remove(bmain, collection_new, ob_old, false);
}		}
}		}

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