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Diffstat (limited to 'source/blender/blenkernel/BKE_persistent_data_handle.hh')
-rw-r--r--source/blender/blenkernel/BKE_persistent_data_handle.hh153
1 files changed, 0 insertions, 153 deletions
diff --git a/source/blender/blenkernel/BKE_persistent_data_handle.hh b/source/blender/blenkernel/BKE_persistent_data_handle.hh
deleted file mode 100644
index bbee09c7bf4..00000000000
--- a/source/blender/blenkernel/BKE_persistent_data_handle.hh
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * 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.
- */
-
-#pragma once
-
-/** \file
- * \ingroup bke
- *
- * A PersistentDataHandle is a weak reference to some data in a Blender file. The handle itself is
- * just a number. A PersistentDataHandleMap is used to convert between handles and the actual data.
- */
-
-#include "BLI_map.hh"
-
-#include "DNA_ID.h"
-
-struct Collection;
-struct Object;
-
-namespace blender::bke {
-
-class PersistentDataHandleMap;
-
-class PersistentDataHandle {
- private:
- /* Negative values indicate that the handle is "empty". */
- int32_t handle_;
-
- friend PersistentDataHandleMap;
-
- protected:
- PersistentDataHandle(int handle) : handle_(handle)
- {
- }
-
- public:
- PersistentDataHandle() : handle_(-1)
- {
- }
-
- friend bool operator==(const PersistentDataHandle &a, const PersistentDataHandle &b)
- {
- return a.handle_ == b.handle_;
- }
-
- friend bool operator!=(const PersistentDataHandle &a, const PersistentDataHandle &b)
- {
- return !(a == b);
- }
-
- friend std::ostream &operator<<(std::ostream &stream, const PersistentDataHandle &a)
- {
- stream << a.handle_;
- return stream;
- }
-
- uint64_t hash() const
- {
- return static_cast<uint64_t>(handle_);
- }
-};
-
-class PersistentIDHandle : public PersistentDataHandle {
- friend PersistentDataHandleMap;
- using PersistentDataHandle::PersistentDataHandle;
-};
-
-class PersistentObjectHandle : public PersistentIDHandle {
- friend PersistentDataHandleMap;
- using PersistentIDHandle::PersistentIDHandle;
-};
-
-class PersistentCollectionHandle : public PersistentIDHandle {
- friend PersistentDataHandleMap;
- using PersistentIDHandle::PersistentIDHandle;
-};
-
-class PersistentDataHandleMap {
- private:
- Map<int32_t, ID *> id_by_handle_;
- Map<ID *, int32_t> handle_by_id_;
-
- public:
- void add(int32_t handle, ID &id)
- {
- BLI_assert(handle >= 0);
- handle_by_id_.add(&id, handle);
- id_by_handle_.add(handle, &id);
- }
-
- PersistentIDHandle lookup(ID *id) const
- {
- const int handle = handle_by_id_.lookup_default(id, -1);
- return PersistentIDHandle(handle);
- }
-
- PersistentObjectHandle lookup(Object *object) const
- {
- const int handle = handle_by_id_.lookup_default((ID *)object, -1);
- return PersistentObjectHandle(handle);
- }
-
- PersistentCollectionHandle lookup(Collection *collection) const
- {
- const int handle = handle_by_id_.lookup_default((ID *)collection, -1);
- return PersistentCollectionHandle(handle);
- }
-
- ID *lookup(const PersistentIDHandle &handle) const
- {
- ID *id = id_by_handle_.lookup_default(handle.handle_, nullptr);
- return id;
- }
-
- Object *lookup(const PersistentObjectHandle &handle) const
- {
- ID *id = this->lookup((const PersistentIDHandle &)handle);
- if (id == nullptr) {
- return nullptr;
- }
- if (GS(id->name) != ID_OB) {
- return nullptr;
- }
- return (Object *)id;
- }
-
- Collection *lookup(const PersistentCollectionHandle &handle) const
- {
- ID *id = this->lookup((const PersistentIDHandle &)handle);
- if (id == nullptr) {
- return nullptr;
- }
- if (GS(id->name) != ID_GR) {
- return nullptr;
- }
- return (Collection *)id;
- }
-};
-
-} // namespace blender::bke