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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2016 by Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup bke
*/
#include "CLG_log.h"
#include "MEM_guardedalloc.h"
#include "BLI_linklist.h"
/* Required for proxy to liboverrides conversion code. */
#define DNA_DEPRECATED_ALLOW
#include "DNA_ID.h"
#include "DNA_collection_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "DEG_depsgraph.h"
#include "BKE_collection.h"
#include "BKE_idtype.h"
#include "BKE_lib_id.h"
#include "BKE_lib_override.h"
#include "BKE_main.h"
#include "BLO_readfile.h"
static CLG_LogRef LOG = {"bke.liboverride_proxy_conversion"};
bool BKE_lib_override_library_proxy_convert(Main *bmain,
Scene *scene,
ViewLayer *view_layer,
Object *ob_proxy)
{
/* `proxy_group`, if defined, is the empty instantiating the collection from which the proxy is
* coming. */
Object *ob_proxy_group = ob_proxy->proxy_group;
const bool is_override_instancing_object = ob_proxy_group != NULL;
ID *id_root = is_override_instancing_object ? &ob_proxy_group->instance_collection->id :
&ob_proxy->proxy->id;
ID *id_reference = is_override_instancing_object ? &ob_proxy_group->id : &ob_proxy->id;
/* In some cases the instance collection of a proxy object may be local (see e.g. T83875). Not
* sure this is a valid state, but for now just abort the overriding process. */
if (!ID_IS_OVERRIDABLE_LIBRARY_HIERARCHY(id_root)) {
if (ob_proxy->proxy != NULL) {
ob_proxy->proxy->proxy_from = NULL;
}
id_us_min((ID *)ob_proxy->proxy);
ob_proxy->proxy = ob_proxy->proxy_group = NULL;
return false;
}
/* We manually convert the proxy object into a library override, further override handling will
* then be handled by `BKE_lib_override_library_create()` just as for a regular override
* creation.
*/
ob_proxy->proxy->id.tag |= LIB_TAG_DOIT;
ob_proxy->proxy->id.newid = &ob_proxy->id;
BKE_lib_override_library_init(&ob_proxy->id, &ob_proxy->proxy->id);
ob_proxy->proxy->proxy_from = NULL;
ob_proxy->proxy = ob_proxy->proxy_group = NULL;
DEG_id_tag_update(&ob_proxy->id, ID_RECALC_COPY_ON_WRITE);
/* In case of proxy conversion, remap all local ID usages to linked IDs to their newly created
* overrides. Also do that for the IDs from the same lib as the proxy in case it is linked.
* While this might not be 100% the desired behavior, it is likely to be the case most of the
* time. Ref: T91711. */
ID *id_iter;
FOREACH_MAIN_ID_BEGIN (bmain, id_iter) {
if (!ID_IS_LINKED(id_iter) || id_iter->lib == ob_proxy->id.lib) {
id_iter->tag |= LIB_TAG_DOIT;
}
}
FOREACH_MAIN_ID_END;
return BKE_lib_override_library_create(
bmain, scene, view_layer, ob_proxy->id.lib, id_root, id_reference, NULL);
}
static void lib_override_library_proxy_convert_do(Main *bmain,
Scene *scene,
Object *ob_proxy,
BlendFileReadReport *reports)
{
Object *ob_proxy_group = ob_proxy->proxy_group;
const bool is_override_instancing_object = ob_proxy_group != NULL;
const bool success = BKE_lib_override_library_proxy_convert(bmain, scene, NULL, ob_proxy);
if (success) {
CLOG_INFO(&LOG,
4,
"Proxy object '%s' successfully converted to library overrides",
ob_proxy->id.name);
/* Remove the instance empty from this scene, the items now have an overridden collection
* instead. */
if (is_override_instancing_object) {
BKE_scene_collections_object_remove(bmain, scene, ob_proxy_group, true);
}
reports->count.proxies_to_lib_overrides_success++;
}
}
void BKE_lib_override_library_main_proxy_convert(Main *bmain, BlendFileReadReport *reports)
{
LISTBASE_FOREACH (Scene *, scene, &bmain->scenes) {
LinkNodePair proxy_objects = {NULL};
FOREACH_SCENE_OBJECT_BEGIN (scene, object) {
if (object->proxy_group != NULL) {
BLI_linklist_append(&proxy_objects, object);
}
}
FOREACH_SCENE_OBJECT_END;
FOREACH_SCENE_OBJECT_BEGIN (scene, object) {
if (object->proxy != NULL && object->proxy_group == NULL) {
BLI_linklist_append(&proxy_objects, object);
}
}
FOREACH_SCENE_OBJECT_END;
for (LinkNode *proxy_object_iter = proxy_objects.list; proxy_object_iter != NULL;
proxy_object_iter = proxy_object_iter->next) {
Object *proxy_object = proxy_object_iter->link;
lib_override_library_proxy_convert_do(bmain, scene, proxy_object, reports);
}
BLI_linklist_free(proxy_objects.list, NULL);
}
LISTBASE_FOREACH (Object *, object, &bmain->objects) {
if (object->proxy_group != NULL || object->proxy != NULL) {
if (ID_IS_LINKED(object)) {
CLOG_WARN(&LOG,
"Linked proxy object '%s' from '%s' failed to be converted to library override",
object->id.name + 2,
object->id.lib->filepath);
}
else {
CLOG_WARN(&LOG,
"Proxy object '%s' failed to be converted to library override",
object->id.name + 2);
}
reports->count.proxies_to_lib_overrides_failures++;
if (object->proxy != NULL) {
object->proxy->proxy_from = NULL;
}
id_us_min((ID *)object->proxy);
object->proxy = object->proxy_group = NULL;
}
}
}
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