masque/masque/traits/mirrorable.py

59 lines
1.3 KiB
Python

from typing import TypeVar
from abc import ABCMeta, abstractmethod
T = TypeVar('T', bound='Mirrorable')
#I = TypeVar('I', bound='MirrorableImpl')
class Mirrorable(metaclass=ABCMeta):
"""
Abstract class for all mirrorable entities
"""
__slots__ = ()
'''
---- Abstract methods
'''
@abstractmethod
def mirror(self: T, axis: int) -> T:
"""
Mirror the entity across an axis.
Args:
axis: Axis to mirror across.
Returns:
self
"""
pass
#class MirrorableImpl(Mirrorable, metaclass=ABCMeta):
# """
# Simple implementation of `Mirrorable`
# """
# __slots__ = ()
#
# _mirrored: numpy.ndarray # ndarray[bool]
# """ Whether to mirror the instance across the x and/or y axes. """
#
# '''
# ---- Properties
# '''
# # Mirrored property
# @property
# def mirrored(self) -> numpy.ndarray: # ndarray[bool]
# """ Whether to mirror across the [x, y] axes, respectively """
# return self._mirrored
#
# @mirrored.setter
# def mirrored(self, val: Sequence[bool]):
# if is_scalar(val):
# raise MasqueError('Mirrored must be a 2-element list of booleans')
# self._mirrored = numpy.array(val, dtype=bool, copy=True)
#
# '''
# ---- Methods
# '''