73 lines
2.6 KiB
Python
Executable File
73 lines
2.6 KiB
Python
Executable File
# ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
#
|
|
# ***** END GPL LICENCE BLOCK *****
|
|
#
|
|
# (c) 2009, At Mind B.V. - Jeroen Bakker
|
|
# (c) 2014, Blender Foundation - Campbell Barton
|
|
# (c) 2018, Blender Foundation - Sybren A. Stüvel
|
|
import typing
|
|
|
|
from blender_asset_tracer import cdefs
|
|
from . import BlendFileBlock
|
|
from .dna import FieldPath
|
|
|
|
|
|
def listbase(
|
|
block: typing.Optional[BlendFileBlock], next_path: FieldPath = b"next"
|
|
) -> typing.Iterator[BlendFileBlock]:
|
|
"""Generator, yields all blocks in the ListBase linked list."""
|
|
while block:
|
|
yield block
|
|
next_ptr = block[next_path]
|
|
if next_ptr == 0:
|
|
break
|
|
block = block.bfile.dereference_pointer(next_ptr)
|
|
|
|
|
|
def sequencer_strips(
|
|
sequence_editor: BlendFileBlock,
|
|
) -> typing.Iterator[typing.Tuple[BlendFileBlock, int]]:
|
|
"""Generator, yield all sequencer strip blocks with their type number.
|
|
|
|
Recurses into meta strips, yielding both the meta strip itself and the
|
|
strips contained within it.
|
|
|
|
See blender_asset_tracer.cdefs.SEQ_TYPE_xxx for the type numbers.
|
|
"""
|
|
|
|
def iter_seqbase(seqbase) -> typing.Iterator[typing.Tuple[BlendFileBlock, int]]:
|
|
for seq in listbase(seqbase):
|
|
seq.refine_type(b"Sequence")
|
|
seq_type = seq[b"type"]
|
|
yield seq, seq_type
|
|
|
|
if seq_type == cdefs.SEQ_TYPE_META:
|
|
# Recurse into this meta-sequence.
|
|
subseq = seq.get_pointer((b"seqbase", b"first"))
|
|
yield from iter_seqbase(subseq)
|
|
|
|
sbase = sequence_editor.get_pointer((b"seqbase", b"first"))
|
|
yield from iter_seqbase(sbase)
|
|
|
|
|
|
def modifiers(object_block: BlendFileBlock) -> typing.Iterator[BlendFileBlock]:
|
|
"""Generator, yield the object's modifiers."""
|
|
|
|
# 'ob->modifiers[...]'
|
|
mods = object_block.get_pointer((b"modifiers", b"first"))
|
|
yield from listbase(mods, next_path=(b"modifier", b"next"))
|