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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) 2019 Blender Foundation.
* All rights reserved.
*/
#include "IO_abstract_hierarchy_iterator.h"
#include "BKE_duplilist.h"
extern "C" {
#include <climits> /* For INT_MAX. */
}
#include <cstring>
#include <sstream>
namespace blender::io {
ObjectIdentifier::ObjectIdentifier(Object *object,
Object *duplicated_by,
const PersistentID &persistent_id)
: object(object), duplicated_by(duplicated_by), persistent_id(persistent_id)
{
}
ObjectIdentifier ObjectIdentifier::for_real_object(Object *object)
{
return ObjectIdentifier(object, nullptr, PersistentID());
}
ObjectIdentifier ObjectIdentifier::for_hierarchy_context(const HierarchyContext *context)
{
if (context == nullptr) {
return for_graph_root();
}
if (context->duplicator != nullptr) {
return ObjectIdentifier(context->object, context->duplicator, context->persistent_id);
}
return for_real_object(context->object);
}
ObjectIdentifier ObjectIdentifier::for_duplicated_object(const DupliObject *dupli_object,
Object *duplicated_by)
{
return ObjectIdentifier(dupli_object->ob, duplicated_by, PersistentID(dupli_object));
}
ObjectIdentifier ObjectIdentifier::for_graph_root()
{
return ObjectIdentifier(nullptr, nullptr, PersistentID());
}
bool ObjectIdentifier::is_root() const
{
return object == nullptr;
}
bool operator<(const ObjectIdentifier &obj_ident_a, const ObjectIdentifier &obj_ident_b)
{
if (obj_ident_a.object != obj_ident_b.object) {
return obj_ident_a.object < obj_ident_b.object;
}
if (obj_ident_a.duplicated_by != obj_ident_b.duplicated_by) {
return obj_ident_a.duplicated_by < obj_ident_b.duplicated_by;
}
if (obj_ident_a.duplicated_by == nullptr) {
/* Both are real objects, no need to check the persistent ID. */
return false;
}
/* Same object, both are duplicated, use the persistent IDs to determine order. */
return obj_ident_a.persistent_id < obj_ident_b.persistent_id;
}
bool operator==(const ObjectIdentifier &obj_ident_a, const ObjectIdentifier &obj_ident_b)
{
if (obj_ident_a.object != obj_ident_b.object) {
return false;
}
if (obj_ident_a.duplicated_by != obj_ident_b.duplicated_by) {
return false;
}
if (obj_ident_a.duplicated_by == nullptr) {
return true;
}
/* Same object, both are duplicated, use the persistent IDs to determine equality. */
return obj_ident_a.persistent_id == obj_ident_b.persistent_id;
}
} // namespace blender::io
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