Differential D8006 Diff 25839 source/blender/blenkernel/intern/lib_id.c

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source/blender/blenkernel/intern/lib_id.c

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	(void *)bpath_user_data);	(void *)bpath_user_data);
	}	}

		static int lib_id_clear_library_data_users_update_cb(LibraryIDLinkCallbackData *cb_data)
		{
		ID *id = cb_data->user_data;
		if (*cb_data->id_pointer == id) {
		DEG_id_tag_update_ex(cb_data->bmain, cb_data->id_owner, ID_RECALC_VIRTUAL_UNDO);
		return IDWALK_RET_STOP_ITER;
		}
		return IDWALK_RET_NOP;
		}

	/**	/**
	* Pull an ID out of a library (make it local). Only call this for IDs that	* Pull an ID out of a library (make it local). Only call this for IDs that
	* don't have other library users.	* don't have other library users.
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	}	}
	}	}

		/* Conceptually, an ID made local is not the same as the linked one anymore. Reflect that by
		* regenerating its session UUID. */
		BKE_lib_libblock_session_uuid_renew(id);

		/* We need to tag this IDs and all of its users, conceptually new local ID and original linked
		* ones are two completely different data-blocks that were virtually remaped, even though in
		* reality they remain the same data. For undo this info is critical now. */
		DEG_id_tag_update_ex(bmain, id, ID_RECALC_COPY_ON_WRITE);
		ID *id_iter;
		FOREACH_MAIN_ID_BEGIN (bmain, id_iter) {
		BKE_library_foreach_ID_link(
		bmain, id_iter, lib_id_clear_library_data_users_update_cb, id, IDWALK_READONLY);
		}
		FOREACH_MAIN_ID_END;

	/* Internal shape key blocks inside data-blocks also stores id->lib,	/* Internal shape key blocks inside data-blocks also stores id->lib,
	* make sure this stays in sync (note that we do not need any explicit handling for real EMBEDDED	* make sure this stays in sync (note that we do not need any explicit handling for real EMBEDDED
	* IDs here, this is down automatically in `lib_id_expand_local_cb()`. */	* IDs here, this is down automatically in `lib_id_expand_local_cb()`. */
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	/**	/**
	* Re-generate a new session-wise uuid for the given \a id.	* Re-generate a new session-wise uuid for the given \a id.
	*	*
	* \warning This has a very specific use-case (to handle UI-related data-blocks that are kept	* \warning This has a few very specific use-cases, no other usage is expected currently:
	* across new file reading, when we do keep existing UI). No other usage is expected currently.	* - To handle UI-related data-blocks that are kept across new file reading, when we do keep
		* existing UI.
		* - For IDs that are made local without needing any copying.
	*/	*/
	void BKE_lib_libblock_session_uuid_renew(ID *id)	void BKE_lib_libblock_session_uuid_renew(ID *id)
	{	{
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