tornavis/source/blender/blenkernel/BKE_lib_override.h

/*
 * 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.
 */

#ifndef __BKE_LIB_OVERRIDE_H__
#define __BKE_LIB_OVERRIDE_H__

/** \file
 * \ingroup bke
 *
 * API to manage data-blocks inside of Blender's Main data-base, or as independant runtime-only
 * data.
 *
 * \note `BKE_lib_` files are for operations over data-blocks themselves, although they might
 * alter Main as well (when creating/renaming/deleting an ID e.g.).
 *
 * \section Function Names
 *
 * \warning Descriptions below is ideal goal, current status of naming does not yet fully follow it
 * (this is WIP).
 *
 *  - `BKE_lib_override_library_` should be used for function affecting a single ID.
 *  - `BKE_lib_override_library_main_` should be used for function affecting the whole collection
 *    of IDs in a given Main data-base.
 */

struct ID;
struct IDOverrideLibrary;
struct IDOverrideLibraryProperty;
struct IDOverrideLibraryPropertyOperation;
struct Main;

void BKE_override_library_enable(const bool do_enable);
bool BKE_override_library_is_enabled(void);

struct IDOverrideLibrary *BKE_override_library_init(struct ID *local_id, struct ID *reference_id);
void BKE_override_library_copy(struct ID *dst_id, const struct ID *src_id);
void BKE_override_library_clear(struct IDOverrideLibrary *override, const bool do_id_user);
void BKE_override_library_free(struct IDOverrideLibrary **override, const bool do_id_user);

struct ID *BKE_override_library_create_from_id(struct Main *bmain,
                                               struct ID *reference_id,
                                               const bool do_tagged_remap);
bool BKE_override_library_create_from_tag(struct Main *bmain);

struct IDOverrideLibraryProperty *BKE_override_library_property_find(
    struct IDOverrideLibrary *override, const char *rna_path);
struct IDOverrideLibraryProperty *BKE_override_library_property_get(
    struct IDOverrideLibrary *override, const char *rna_path, bool *r_created);
void BKE_override_library_property_delete(struct IDOverrideLibrary *override,
                                          struct IDOverrideLibraryProperty *override_property);

struct IDOverrideLibraryPropertyOperation *BKE_override_library_property_operation_find(
    struct IDOverrideLibraryProperty *override_property,
    const char *subitem_refname,
    const char *subitem_locname,
    const int subitem_refindex,
    const int subitem_locindex,
    const bool strict,
    bool *r_strict);
struct IDOverrideLibraryPropertyOperation *BKE_override_library_property_operation_get(
    struct IDOverrideLibraryProperty *override_property,
    const short operation,
    const char *subitem_refname,
    const char *subitem_locname,
    const int subitem_refindex,
    const int subitem_locindex,
    const bool strict,
    bool *r_strict,
    bool *r_created);
void BKE_override_library_property_operation_delete(
    struct IDOverrideLibraryProperty *override_property,
    struct IDOverrideLibraryPropertyOperation *override_property_operation);

bool BKE_override_library_status_check_local(struct Main *bmain, struct ID *local);
bool BKE_override_library_status_check_reference(struct Main *bmain, struct ID *local);

bool BKE_override_library_operations_create(struct Main *bmain,
                                            struct ID *local,
                                            const bool force_auto);
void BKE_main_override_library_operations_create(struct Main *bmain, const bool force_auto);

void BKE_override_library_update(struct Main *bmain, struct ID *local);
void BKE_main_override_library_update(struct Main *bmain);

/* Storage (.blend file writing) part. */

/* For now, we just use a temp main list. */
typedef struct Main OverrideLibraryStorage;

OverrideLibraryStorage *BKE_override_library_operations_store_initialize(void);
struct ID *BKE_override_library_operations_store_start(struct Main *bmain,
                                                       OverrideLibraryStorage *override_storage,
                                                       struct ID *local);
void BKE_override_library_operations_store_end(OverrideLibraryStorage *override_storage,
                                               struct ID *local);
void BKE_override_library_operations_store_finalize(OverrideLibraryStorage *override_storage);

#endif /* __BKE_LIB_OVERRIDE_H__ */