1216651ca9
Rename modules in `./scripts/modules/` to use an underscore prefix to make it clear they aren't intended to be part of public API's. This also means there is no implication that these modules should be stable, allowing us to change them based on Blender's internal usage. The following modules have been marked as private: - `animsys_refactor` - `bl_console_utils` - `bl_i18n_utils` - `bl_previews_utils` - `bl_rna_utils` - `bl_text_utils` - `bl_ui_utils` - `bpy_restrict_state` - `console_python` - `console_shell` - `graphviz_export` - `keyingsets_utils` - `rna_info` - `rna_manual_reference` - `rna_xml` Note that we could further re-arrange these modules (under `_bpy_internal` in some cases), this change is mainly to mark them as private, further changes can be handed on a case-by-case basis. Ref !147773
77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
# SPDX-FileCopyrightText: 2021-2023 Blender Authors
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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__all__ = (
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"property_definition_from_data_path",
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"decompose_data_path",
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)
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class _TokenizeDataPath:
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"""
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Class to split up tokens of a data-path.
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Note that almost all access generates new objects with additional paths,
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with the exception of iteration which is the intended way to access the resulting data."""
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__slots__ = (
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"data_path",
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)
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def __init__(self, attrs):
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self.data_path = attrs
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def __getattr__(self, attr):
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return _TokenizeDataPath(self.data_path + ((".{:s}".format(attr)),))
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def __getitem__(self, key):
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return _TokenizeDataPath(self.data_path + (("[{!r}]".format(key)),))
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def __call__(self, *args, **kw):
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value_str = ", ".join([
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val for val in (
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", ".join(repr(value) for value in args),
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", ".join(["{:s}={!r}".format(key, value) for key, value in kw.items()]),
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) if val])
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return _TokenizeDataPath(self.data_path + ('({:s})'.format(value_str), ))
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def __iter__(self):
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return iter(self.data_path)
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def decompose_data_path(data_path):
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"""
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Return the components of a data path split into a list.
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"""
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ns = {"base": _TokenizeDataPath(())}
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return list(eval("base" + data_path, ns, ns))
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def property_definition_from_data_path(base, data_path):
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"""
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Return an RNA property definition from an object and a data path.
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In Blender this is often used with ``context`` as the base and a
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path that it references, for example ``.space_data.lock_camera``.
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"""
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data = decompose_data_path(data_path)
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while data and (not data[-1].startswith(".")):
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data.pop()
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if (not data) or (not data[-1].startswith(".")) or (len(data) < 2):
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return None
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data_path_head = "".join(data[:-1])
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data_path_tail = data[-1]
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value_head = eval("base" + data_path_head)
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value_head_rna = getattr(value_head, "bl_rna", None)
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if value_head_rna is None:
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return None
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value_tail = value_head.bl_rna.properties.get(data_path_tail[1:])
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if not value_tail:
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return None
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return value_tail
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