| from __future__ import annotations | |
| from .._layout import Layout | |
| from .horizontal import HorizontalLayout | |
| from .grid import GridLayout | |
| from .vertical import VerticalLayout | |
| LAYOUT_MAP: dict[str, type[Layout]] = { | |
| "horizontal": HorizontalLayout, | |
| "grid": GridLayout, | |
| "vertical": VerticalLayout, | |
| } | |
| class MissingLayout(Exception): | |
| pass | |
| def get_layout(name: str) -> Layout: | |
| """Get a named layout object. | |
| Args: | |
| name (str): Name of the layout. | |
| Raises: | |
| MissingLayout: If the named layout doesn't exist. | |
| Returns: | |
| Layout: A layout object. | |
| """ | |
| layout_class = LAYOUT_MAP.get(name) | |
| if layout_class is None: | |
| raise MissingLayout(f"no layout called {name!r}, valid layouts") | |
| return layout_class() | |