Files
sideline/engine/display/__init__.py
David Gwilliam f9991c24af feat(display): add Pygame native window display backend
- Add PygameDisplay for rendering in native application window
- Add pygame to optional dependencies
- Add run-pygame mise task
2026-03-16 00:00:53 -07:00

107 lines
2.8 KiB
Python

"""
Display backend system with registry pattern.
Allows swapping output backends via the Display protocol.
Supports auto-discovery of display backends.
"""
from typing import Protocol
from engine.display.backends.kitty import KittyDisplay
from engine.display.backends.multi import MultiDisplay
from engine.display.backends.null import NullDisplay
from engine.display.backends.pygame import PygameDisplay
from engine.display.backends.sixel import SixelDisplay
from engine.display.backends.terminal import TerminalDisplay
from engine.display.backends.websocket import WebSocketDisplay
class Display(Protocol):
"""Protocol for display backends."""
width: int
height: int
def init(self, width: int, height: int) -> None:
"""Initialize display with dimensions."""
...
def show(self, buffer: list[str]) -> None:
"""Show buffer on display."""
...
def clear(self) -> None:
"""Clear display."""
...
def cleanup(self) -> None:
"""Shutdown display."""
...
class DisplayRegistry:
"""Registry for display backends with auto-discovery."""
_backends: dict[str, type[Display]] = {}
_initialized = False
@classmethod
def register(cls, name: str, backend_class: type[Display]) -> None:
"""Register a display backend."""
cls._backends[name.lower()] = backend_class
@classmethod
def get(cls, name: str) -> type[Display] | None:
"""Get a display backend class by name."""
return cls._backends.get(name.lower())
@classmethod
def list_backends(cls) -> list[str]:
"""List all available display backend names."""
return list(cls._backends.keys())
@classmethod
def create(cls, name: str, **kwargs) -> Display | None:
"""Create a display instance by name."""
backend_class = cls.get(name)
if backend_class:
return backend_class(**kwargs)
return None
@classmethod
def initialize(cls) -> None:
"""Initialize and register all built-in backends."""
if cls._initialized:
return
cls.register("terminal", TerminalDisplay)
cls.register("null", NullDisplay)
cls.register("websocket", WebSocketDisplay)
cls.register("sixel", SixelDisplay)
cls.register("kitty", KittyDisplay)
cls.register("pygame", PygameDisplay)
cls._initialized = True
def get_monitor():
"""Get the performance monitor."""
try:
from engine.effects.performance import get_monitor as _get_monitor
return _get_monitor()
except Exception:
return None
__all__ = [
"Display",
"DisplayRegistry",
"get_monitor",
"TerminalDisplay",
"NullDisplay",
"WebSocketDisplay",
"SixelDisplay",
"MultiDisplay",
]