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37 lines
1.3 KiB
37 lines
1.3 KiB
from typing import Optional, TYPE_CHECKING
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from .jupyter import JupyterMixin
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from .measure import Measurement
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if TYPE_CHECKING:
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from .console import Console, ConsoleOptions, RenderableType, RenderResult
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class Constrain(JupyterMixin):
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"""Constrain the width of a renderable to a given number of characters.
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Args:
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renderable (RenderableType): A renderable object.
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width (int, optional): The maximum width (in characters) to render. Defaults to 80.
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"""
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def __init__(self, renderable: "RenderableType", width: Optional[int] = 80) -> None:
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self.renderable = renderable
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self.width = width
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def __rich_console__(
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self, console: "Console", options: "ConsoleOptions"
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) -> "RenderResult":
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if self.width is None:
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yield self.renderable
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else:
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child_options = options.update_width(min(self.width, options.max_width))
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yield from console.render(self.renderable, child_options)
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def __rich_measure__(
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self, console: "Console", options: "ConsoleOptions"
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) -> "Measurement":
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if self.width is not None:
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options = options.update_width(self.width)
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measurement = Measurement.get(console, options, self.renderable)
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return measurement
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