forked from genewildish/Mainline
David Gwilliam
20ed014491
- Add KittyDisplay using kitty's native graphics protocol - Improve cross-platform font detection for SixelDisplay - Add run-kitty mise task for testing kitty backend - Add kitty_test.py for testing graphics protocol
105 lines
2.7 KiB
Python
105 lines
2.7 KiB
Python
"""
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Display backend system with registry pattern.
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Allows swapping output backends via the Display protocol.
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Supports auto-discovery of display backends.
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"""
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from typing import Protocol
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from engine.display.backends.kitty import KittyDisplay
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from engine.display.backends.multi import MultiDisplay
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from engine.display.backends.null import NullDisplay
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from engine.display.backends.sixel import SixelDisplay
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from engine.display.backends.terminal import TerminalDisplay
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from engine.display.backends.websocket import WebSocketDisplay
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class Display(Protocol):
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"""Protocol for display backends."""
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width: int
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height: int
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def init(self, width: int, height: int) -> None:
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"""Initialize display with dimensions."""
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...
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def show(self, buffer: list[str]) -> None:
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"""Show buffer on display."""
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...
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def clear(self) -> None:
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"""Clear display."""
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...
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def cleanup(self) -> None:
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"""Shutdown display."""
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...
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class DisplayRegistry:
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"""Registry for display backends with auto-discovery."""
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_backends: dict[str, type[Display]] = {}
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_initialized = False
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@classmethod
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def register(cls, name: str, backend_class: type[Display]) -> None:
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"""Register a display backend."""
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cls._backends[name.lower()] = backend_class
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@classmethod
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def get(cls, name: str) -> type[Display] | None:
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"""Get a display backend class by name."""
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return cls._backends.get(name.lower())
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@classmethod
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def list_backends(cls) -> list[str]:
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"""List all available display backend names."""
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return list(cls._backends.keys())
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@classmethod
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def create(cls, name: str, **kwargs) -> Display | None:
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"""Create a display instance by name."""
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backend_class = cls.get(name)
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if backend_class:
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return backend_class(**kwargs)
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return None
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@classmethod
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def initialize(cls) -> None:
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"""Initialize and register all built-in backends."""
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if cls._initialized:
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return
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cls.register("terminal", TerminalDisplay)
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cls.register("null", NullDisplay)
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cls.register("websocket", WebSocketDisplay)
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cls.register("sixel", SixelDisplay)
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cls.register("kitty", KittyDisplay)
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cls._initialized = True
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def get_monitor():
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"""Get the performance monitor."""
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try:
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from engine.effects.performance import get_monitor as _get_monitor
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return _get_monitor()
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except Exception:
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return None
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__all__ = [
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"Display",
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"DisplayRegistry",
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"get_monitor",
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"TerminalDisplay",
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"NullDisplay",
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"WebSocketDisplay",
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"SixelDisplay",
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"MultiDisplay",
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]
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