1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
# SPDX-License-Identifier: GPL-2.0-or-later
# <pep8 compliant>
"""
This module has utility functions for renaming
rna values in fcurves and drivers.
Currently unused, but might become useful later again.
"""
import sys
import bpy
IS_TESTING = False
def classes_recursive(base_type, clss=None):
if clss is None:
clss = [base_type]
else:
clss.append(base_type)
for base_type_iter in base_type.__bases__:
if base_type_iter is not object:
classes_recursive(base_type_iter, clss)
return clss
class DataPathBuilder:
"""Dummy class used to parse fcurve and driver data paths."""
__slots__ = ("data_path", )
def __init__(self, attrs):
self.data_path = attrs
def __getattr__(self, attr):
str_value = ".%s" % attr
return DataPathBuilder(self.data_path + (str_value, ))
def __getitem__(self, key):
if type(key) is int:
str_value = '[%d]' % key
elif type(key) is str:
str_value = '["%s"]' % bpy.utils.escape_identifier(key)
else:
raise Exception("unsupported accessor %r of type %r (internal error)" % (key, type(key)))
return DataPathBuilder(self.data_path + (str_value, ))
def resolve(self, real_base, rna_update_from_map, fcurve, log):
"""Return (attribute, value) pairs."""
pairs = []
base = real_base
for item in self.data_path:
if base is not Ellipsis:
base_new = Ellipsis
# find the new name
if item.startswith("."):
for class_name, item_new, options in (
rna_update_from_map.get(item[1:], []) +
[(None, item[1:], None)]
):
if callable(item_new):
# No type check here, callback is assumed to know what it's doing.
base_new, item_new = item_new(base, class_name, item[1:], fcurve, options)
if base_new is not Ellipsis:
break # found, don't keep looking
else:
# Type check!
type_ok = True
if class_name is not None:
type_ok = False
for base_type in classes_recursive(type(base)):
if base_type.__name__ == class_name:
type_ok = True
break
if type_ok:
try:
#print("base." + item_new)
base_new = eval("base." + item_new)
break # found, don't keep looking
except:
pass
item_new = "." + item_new
else:
item_new = item
try:
base_new = eval("base" + item_new)
except:
pass
if base_new is Ellipsis:
print("Failed to resolve data path:", self.data_path, file=log)
base = base_new
else:
item_new = item
pairs.append((item_new, base))
return pairs
def id_iter():
type_iter = type(bpy.data.objects)
for attr in dir(bpy.data):
data_iter = getattr(bpy.data, attr, None)
if type(data_iter) == type_iter:
for id_data in data_iter:
if id_data.library is None:
yield id_data
def anim_data_actions(anim_data):
actions = []
actions.append(anim_data.action)
for track in anim_data.nla_tracks:
for strip in track.strips:
actions.append(strip.action)
# filter out None
return [act for act in actions if act]
def find_path_new(id_data, data_path, rna_update_from_map, fcurve, log):
# note!, id_data can be ID type or a node tree
# ignore ID props for now
if data_path.startswith("["):
return data_path
# recursive path fixing, likely will be one in most cases.
data_path_builder = eval("DataPathBuilder(tuple())." + data_path)
data_resolve = data_path_builder.resolve(id_data, rna_update_from_map, fcurve, log)
path_new = [pair[0] for pair in data_resolve]
return "".join(path_new)[1:] # skip the first "."
def update_data_paths(rna_update, log=sys.stdout):
"""
rna_update triple [(class_name, from, to or to_callback, callback options), ...]
to_callback is a function with this signature: update_cb(base, class_name, old_path, fcurve, options)
where base is current object, class_name is the expected type name of base (callback has to handle
this), old_path it the org name of base's property, fcurve is the affected fcurve (!),
and options is an opaque data.
class_name, fcurve and options may be None!
"""
rna_update_from_map = {}
for ren_class, ren_from, ren_to, options in rna_update:
rna_update_from_map.setdefault(ren_from, []).append((ren_class, ren_to, options))
for id_data in id_iter():
# check node-trees too
anim_data_ls = [(id_data, getattr(id_data, "animation_data", None))]
node_tree = getattr(id_data, "node_tree", None)
if node_tree:
anim_data_ls.append((node_tree, node_tree.animation_data))
for anim_data_base, anim_data in anim_data_ls:
if anim_data is None:
continue
for fcurve in anim_data.drivers:
data_path = fcurve.data_path
data_path_new = find_path_new(anim_data_base, data_path, rna_update_from_map, fcurve, log)
# print(data_path_new)
if data_path_new != data_path:
if not IS_TESTING:
fcurve.data_path = data_path_new
fcurve.driver.is_valid = True # reset to allow this to work again
print("driver-fcurve (%s): %s -> %s" % (id_data.name, data_path, data_path_new), file=log)
for var in fcurve.driver.variables:
if var.type == 'SINGLE_PROP':
for tar in var.targets:
id_data_other = tar.id
data_path = tar.data_path
if id_data_other and data_path:
data_path_new = find_path_new(id_data_other, data_path, rna_update_from_map, None, log)
# print(data_path_new)
if data_path_new != data_path:
if not IS_TESTING:
tar.data_path = data_path_new
print("driver (%s): %s -> %s" % (id_data_other.name, data_path, data_path_new),
file=log)
for action in anim_data_actions(anim_data):
for fcu in action.fcurves:
data_path = fcu.data_path
data_path_new = find_path_new(anim_data_base, data_path, rna_update_from_map, fcu, log)
# print(data_path_new)
if data_path_new != data_path:
if not IS_TESTING:
fcu.data_path = data_path_new
print("fcurve (%s): %s -> %s" % (id_data.name, data_path, data_path_new), file=log)
if __name__ == "__main__":
# Example, should be called externally
# (class, from, to or to_callback, callback_options)
replace_ls = [
("AnimVizMotionPaths", "frame_after", "frame_after", None),
("AnimVizMotionPaths", "frame_before", "frame_before", None),
("AnimVizOnionSkinning", "frame_after", "frame_after", None),
]
update_data_paths(replace_ls)
|
