# Copyright 2000-2004 Michael Hudson-Doyle # # All Rights Reserved # # # Permission to use, copy, modify, and distribute this software and # its documentation for any purpose is hereby granted without fee, # provided that the above copyright notice appear in all copies and # that both that copyright notice and this permission notice appear in # supporting documentation. # # THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO # THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY # AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, # INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER # RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF # CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN # CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. from __future__ import annotations from abc import ABC, abstractmethod from dataclasses import dataclass, field @dataclass class Event: evt: str data: str raw: bytes = b"" @dataclass class Console(ABC): screen: list[str] = field(default_factory=list) height: int = 25 width: int = 80 @abstractmethod def refresh(self, screen: list[str], xy: tuple[int, int]) -> None: ... @abstractmethod def prepare(self) -> None: ... @abstractmethod def restore(self) -> None: ... @abstractmethod def move_cursor(self, x: int, y: int) -> None: ... @abstractmethod def set_cursor_vis(self, visible: bool) -> None: ... @abstractmethod def getheightwidth(self) -> tuple[int, int]: """Return (height, width) where height and width are the height and width of the terminal window in characters.""" ... @abstractmethod def get_event(self, block: bool = True) -> Event | None: """Return an Event instance. Returns None if |block| is false and there is no event pending, otherwise waits for the completion of an event.""" ... @abstractmethod def push_char(self, char: int | bytes) -> None: """ Push a character to the console event queue. """ ... @abstractmethod def beep(self) -> None: ... @abstractmethod def clear(self) -> None: """Wipe the screen""" ... @abstractmethod def finish(self) -> None: """Move the cursor to the end of the display and otherwise get ready for end. XXX could be merged with restore? Hmm.""" ... @abstractmethod def flushoutput(self) -> None: """Flush all output to the screen (assuming there's some buffering going on somewhere).""" ... @abstractmethod def forgetinput(self) -> None: """Forget all pending, but not yet processed input.""" ... @abstractmethod def getpending(self) -> Event: """Return the characters that have been typed but not yet processed.""" ... @abstractmethod def wait(self) -> None: """Wait for an event.""" ... @abstractmethod def repaint(self) -> None: ...