Files
test2/scripts/modules/keyingsets_utils.py
Ramon Klauck 53578d33ae VSE: Keyframing in Preview
This PR makes it easier to add keyframes for strips in preview.
This works same way as in 3D viewport, using keying sets. Pressing I
key adds keyframe to default keying set, pressing K dhows menu with
available keying sets. For VSE, location, rotation and scale properties
are available for now. Other existing keying sets are not valid for
VSE.

Deleting keyframes and potentially adding more keying sets will be
handled in separate PR.

Pull Request: https://projects.blender.org/blender/blender/pulls/140107
2025-06-25 02:56:55 +02:00

355 lines
11 KiB
Python

# SPDX-FileCopyrightText: 2010-2023 Blender Authors
#
# SPDX-License-Identifier: GPL-2.0-or-later
# This file defines a set of methods that are useful for various
# Relative Keying Set (RKS) related operations, such as: callbacks
# for polling, iterator callbacks, and also generate callbacks.
# All of these can be used in conjunction with the others.
__all__ = (
"path_add_property",
"RKS_POLL_selected_objects",
"RKS_POLL_selected_bones",
"RKS_POLL_selected_items",
"RKS_ITER_selected_objects",
"RKS_ITER_selected_bones",
"RKS_ITER_selected_item",
"RKS_GEN_available",
"RKS_GEN_custom_props",
"RKS_GEN_location",
"RKS_GEN_rotation",
"RKS_GEN_scaling",
"RKS_GEN_bendy_bones",
)
import bpy
from bpy_extras import anim_utils
###########################
# General Utilities
# Append the specified property name on the existing path.
def path_add_property(path, prop):
if path:
return path + "." + prop
else:
return prop
###########################
# Poll Callbacks
# selected objects (active object must be in object mode)
def RKS_POLL_selected_objects(_ksi, context):
if context.area.type == 'SEQUENCE_EDITOR':
return False
ob = context.active_object
if ob:
return ob.mode == 'OBJECT'
else:
return bool(context.selected_objects)
# selected bones
def RKS_POLL_selected_bones(_ksi, context):
if context.area.type == 'SEQUENCE_EDITOR':
return False
# we must be in Pose Mode, and there must be some bones selected
ob = context.active_object
if ob and ob.mode == 'POSE':
if context.active_pose_bone or context.selected_pose_bones:
return True
# nothing selected
return False
# selected vse strip
def RKS_POLL_selected_strip(_ksi, context):
if context.active_strip or context.selected_strips:
return True
# nothing selected
return False
# selected bones, objects or strips
def RKS_POLL_selected_items(ksi, context):
return (RKS_POLL_selected_bones(ksi, context) or
RKS_POLL_selected_objects(ksi, context) or
RKS_POLL_selected_strip(ksi, context))
# selected bones or objects
def RKS_POLL_selected_bones_or_objects(ksi, context):
return (RKS_POLL_selected_bones(ksi, context) or
RKS_POLL_selected_objects(ksi, context))
###########################
# Iterator Callbacks
# All selected objects or pose bones, depending on which we've got.
def RKS_ITER_selected_item(ksi, context, ks):
if context.area.type == 'SEQUENCE_EDITOR':
if context.selected_strips:
for strip in context.selected_strips:
ksi.generate(context, ks, strip)
return
ob = context.active_object
if ob and ob.mode == 'POSE':
for bone in context.selected_pose_bones:
ksi.generate(context, ks, bone)
elif context.selected_objects:
for ob in context.selected_objects:
ksi.generate(context, ks, ob)
# All selected objects only.
def RKS_ITER_selected_objects(ksi, context, ks):
for ob in context.selected_objects:
ksi.generate(context, ks, ob)
# All selected bones only.
def RKS_ITER_selected_bones(ksi, context, ks):
for bone in context.selected_pose_bones:
ksi.generate(context, ks, bone)
###########################
# Generate Callbacks
# "Available" F-Curves.
def RKS_GEN_available(_ksi, _context, ks, data):
# try to get the animation data associated with the closest
# ID-block to the data (neither of which may exist/be easy to find)
id_block = data.id_data
adt = getattr(id_block, "animation_data", None)
# there must also be an active action...
if adt is None or adt.action is None:
return
# if we haven't got an ID-block as 'data', try to restrict
# paths added to only those which branch off from here
# i.e. for bones
if id_block != data:
basePath = data.path_from_id()
else:
basePath = None # this is not needed...
# for each F-Curve, include a path to key it
# NOTE: we don't need to set the group settings here
cbag = anim_utils.action_get_channelbag_for_slot(adt.action, adt.action_slot)
if not cbag:
return
for fcu in cbag.fcurves:
if basePath:
if basePath in fcu.data_path:
ks.paths.add(id_block, fcu.data_path, index=fcu.array_index)
else:
ks.paths.add(id_block, fcu.data_path, index=fcu.array_index)
# ------
# get ID block and based ID path for transform generators
# private function
def get_transform_generators_base_info(data):
# ID-block for the data
id_block = data.id_data
# get base path and grouping method/name
if isinstance(data, bpy.types.ID):
# no path in this case
path = ""
# transform data on ID-blocks directly should get grouped under a
# hardcoded label ("Object Transforms") so that they get grouped
# consistently when keyframed directly
grouping = "Object Transforms"
else:
# get the path to the ID-block
path = data.path_from_id()
# try to use the name of the data element to group the F-Curve
# else fall back on the KeyingSet name
grouping = getattr(data, "name", None)
# return the ID-block and the path
return id_block, path, grouping
# Location
def RKS_GEN_location(_ksi, _context, ks, data):
# get id-block and path info
id_block, base_path, grouping = get_transform_generators_base_info(data)
if isinstance(data, bpy.types.Strip):
path_x = path_add_property(base_path, "transform.offset_x")
path_y = path_add_property(base_path, "transform.offset_y")
if grouping:
ks.paths.add(id_block, path_x, group_method='NAMED', group_name=grouping)
ks.paths.add(id_block, path_y, group_method='NAMED', group_name=grouping)
else:
ks.paths.add(id_block, path_x)
ks.paths.add(id_block, path_y)
return
# add the property name to the base path
path = path_add_property(base_path, "location")
# add Keying Set entry for this...
if grouping:
ks.paths.add(id_block, path, group_method='NAMED', group_name=grouping)
else:
ks.paths.add(id_block, path)
# Rotation
def RKS_GEN_rotation(_ksi, _context, ks, data):
# get id-block and path info
id_block, base_path, grouping = get_transform_generators_base_info(data)
# add the property name to the base path
if isinstance(data, bpy.types.Strip):
path = path_add_property(base_path, "transform.rotation")
if grouping:
ks.paths.add(id_block, path, group_method='NAMED', group_name=grouping)
else:
ks.paths.add(id_block, path)
return
# rotation mode affects the property used
if data.rotation_mode == 'QUATERNION':
path = path_add_property(base_path, "rotation_quaternion")
elif data.rotation_mode == 'AXIS_ANGLE':
path = path_add_property(base_path, "rotation_axis_angle")
else:
path = path_add_property(base_path, "rotation_euler")
# add Keying Set entry for this...
if grouping:
ks.paths.add(id_block, path, group_method='NAMED', group_name=grouping)
else:
ks.paths.add(id_block, path)
# Scaling
def RKS_GEN_scaling(_ksi, _context, ks, data):
# get id-block and path info
id_block, base_path, grouping = get_transform_generators_base_info(data)
if isinstance(data, bpy.types.Strip):
path_x = path_add_property(base_path, "transform.scale_x")
path_y = path_add_property(base_path, "transform.scale_y")
if grouping:
ks.paths.add(id_block, path_x, group_method='NAMED', group_name=grouping)
ks.paths.add(id_block, path_y, group_method='NAMED', group_name=grouping)
else:
ks.paths.add(id_block, path_x)
ks.paths.add(id_block, path_y)
return
# add the property name to the base path
path = path_add_property(base_path, "scale")
# add Keying Set entry for this...
if grouping:
ks.paths.add(id_block, path, group_method='NAMED', group_name=grouping)
else:
ks.paths.add(id_block, path)
# Custom Properties
def RKS_GEN_custom_props(_ksi, _context, ks, data):
# get id-block and path info
id_block, base_path, grouping = get_transform_generators_base_info(data)
# Only some RNA types can be animated.
prop_type_compat = {bpy.types.BoolProperty,
bpy.types.IntProperty,
bpy.types.FloatProperty,
bpy.types.EnumProperty}
# When working with a pose, 'id_block' is the armature object (which should
# get the animation data), whereas 'data' is the bone being keyed.
for cprop_name in data.keys():
# ignore special "_RNA_UI" used for UI editing
if cprop_name == "_RNA_UI":
continue
if cprop_name in data.bl_rna.properties and not data.bl_rna.properties[cprop_name].is_animatable:
continue
if cprop_name in data.bl_rna.properties:
prop_path = cprop_name
else:
prop_path = '["{:s}"]'.format(bpy.utils.escape_identifier(cprop_name))
try:
rna_property = data.path_resolve(prop_path, False)
except ValueError:
# Can technically happen, but there is no known case.
continue
if rna_property is None:
# In this case the property cannot be converted to an
# FCurve-compatible value, so we can't keyframe it anyways.
continue
if rna_property.rna_type not in prop_type_compat:
continue
path = "{:s}{:s}".format(base_path, prop_path)
if grouping:
ks.paths.add(id_block, path, group_method='NAMED', group_name=grouping)
else:
ks.paths.add(id_block, path)
# ------
# Property identifiers for Bendy Bones
bbone_property_ids = (
"bbone_curveinx",
"bbone_curveiny",
"bbone_curveoutx",
"bbone_curveouty",
"bbone_rollin",
"bbone_rollout",
"bbone_scalein",
"bbone_scaleout",
# NOTE: These are in the nested bone struct
# Do it this way to force them to be included
# in whatever actions are being keyed here
"bone.bbone_in",
"bone.bbone_out",
)
# Add Keying Set entries for bendy bones
def RKS_GEN_bendy_bones(_ksi, _context, ks, data):
# get id-block and path info
# NOTE: This assumes that we're dealing with a bone here...
id_block, base_path, grouping = get_transform_generators_base_info(data)
# for each of the bendy bone properties, add a Keying Set entry for it...
for propname in bbone_property_ids:
# add the property name to the base path
path = path_add_property(base_path, propname)
# add Keying Set entry for this...
if grouping:
ks.paths.add(id_block, path, group_method='NAMED', group_name=grouping)
else:
ks.paths.add(id_block, path)