55 lines
1.2 KiB
Python
55 lines
1.2 KiB
Python
import abc
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from typing import Hashable, List, Optional
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from .exceptions import ElementException, TreeException
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from .markup import AttributedText
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__all__ = ["Id", "Element", "RenderedElement"]
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Id = Hashable
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class Element(abc.ABC):
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def __init__(self,
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id: Id,
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parent_id: Optional[Id],
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) -> None:
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self._id = id
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self._parent_id = parent_id
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@property
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def id(self) -> Id:
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return self._id
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@property
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def parent_id(self) -> Optional[Id]:
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return self._parent_id
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@abc.abstractmethod
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def render(self,
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width: int,
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depth: int,
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highlighted: bool = False,
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folded: bool = False,
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) -> "RenderedElement":
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pass
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class RenderedElement:
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def __init__(self,
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element: Element,
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rendered: List[AttributedText],
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) -> None:
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self._element = element
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self._lines = rendered
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@property
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def element(self) -> Element:
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return self._element
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@property
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def lines(self) -> List[AttributedText]:
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return self._lines
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@property
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def height(self) -> int:
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return len(self._lines)
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