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# ##### BEGIN GPL LICENSE BLOCK #####
#
# 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.
#
# ##### END GPL LICENSE BLOCK #####
"""
Pose Library - functions.
"""
from pathlib import Path
from typing import Any, List, Iterable
Datablock = Any
import bpy
def load_assets_from(filepath: Path) -> List[Datablock]:
if not has_assets(filepath):
# Avoid loading any datablocks when there are none marked as asset.
return []
# Append everything from the file.
with bpy.data.libraries.load(str(filepath)) as (
data_from,
data_to,
):
for attr in dir(data_to):
setattr(data_to, attr, getattr(data_from, attr))
# Iterate over the appended datablocks to find assets.
def loaded_datablocks() -> Iterable[Datablock]:
for attr in dir(data_to):
datablocks = getattr(data_to, attr)
for datablock in datablocks:
yield datablock
loaded_assets = []
for datablock in loaded_datablocks():
if not getattr(datablock, "asset_data", None):
continue
# Fake User is lost when appending from another file.
datablock.use_fake_user = True
loaded_assets.append(datablock)
return loaded_assets
def has_assets(filepath: Path) -> bool:
with bpy.data.libraries.load(str(filepath), assets_only=True) as (
data_from,
_,
):
for attr in dir(data_from):
data_names = getattr(data_from, attr)
if data_names:
return True
return False
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