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Diffstat (limited to 'venv/lib/python3.11/site-packages/rich/control.py')
-rw-r--r-- | venv/lib/python3.11/site-packages/rich/control.py | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/venv/lib/python3.11/site-packages/rich/control.py b/venv/lib/python3.11/site-packages/rich/control.py new file mode 100644 index 0000000..a8a9125 --- /dev/null +++ b/venv/lib/python3.11/site-packages/rich/control.py @@ -0,0 +1,225 @@ +import sys +import time +from typing import TYPE_CHECKING, Callable, Dict, Iterable, List, Union + +if sys.version_info >= (3, 8): + from typing import Final +else: + from typing_extensions import Final # pragma: no cover + +from .segment import ControlCode, ControlType, Segment + +if TYPE_CHECKING: + from .console import Console, ConsoleOptions, RenderResult + +STRIP_CONTROL_CODES: Final = [ + 7, # Bell + 8, # Backspace + 11, # Vertical tab + 12, # Form feed + 13, # Carriage return +] +_CONTROL_STRIP_TRANSLATE: Final = { + _codepoint: None for _codepoint in STRIP_CONTROL_CODES +} + +CONTROL_ESCAPE: Final = { + 7: "\\a", + 8: "\\b", + 11: "\\v", + 12: "\\f", + 13: "\\r", +} + +CONTROL_CODES_FORMAT: Dict[int, Callable[..., str]] = { + ControlType.BELL: lambda: "\x07", + ControlType.CARRIAGE_RETURN: lambda: "\r", + ControlType.HOME: lambda: "\x1b[H", + ControlType.CLEAR: lambda: "\x1b[2J", + ControlType.ENABLE_ALT_SCREEN: lambda: "\x1b[?1049h", + ControlType.DISABLE_ALT_SCREEN: lambda: "\x1b[?1049l", + ControlType.SHOW_CURSOR: lambda: "\x1b[?25h", + ControlType.HIDE_CURSOR: lambda: "\x1b[?25l", + ControlType.CURSOR_UP: lambda param: f"\x1b[{param}A", + ControlType.CURSOR_DOWN: lambda param: f"\x1b[{param}B", + ControlType.CURSOR_FORWARD: lambda param: f"\x1b[{param}C", + ControlType.CURSOR_BACKWARD: lambda param: f"\x1b[{param}D", + ControlType.CURSOR_MOVE_TO_COLUMN: lambda param: f"\x1b[{param+1}G", + ControlType.ERASE_IN_LINE: lambda param: f"\x1b[{param}K", + ControlType.CURSOR_MOVE_TO: lambda x, y: f"\x1b[{y+1};{x+1}H", + ControlType.SET_WINDOW_TITLE: lambda title: f"\x1b]0;{title}\x07", +} + + +class Control: + """A renderable that inserts a control code (non printable but may move cursor). + + Args: + *codes (str): Positional arguments are either a :class:`~rich.segment.ControlType` enum or a + tuple of ControlType and an integer parameter + """ + + __slots__ = ["segment"] + + def __init__(self, *codes: Union[ControlType, ControlCode]) -> None: + control_codes: List[ControlCode] = [ + (code,) if isinstance(code, ControlType) else code for code in codes + ] + _format_map = CONTROL_CODES_FORMAT + rendered_codes = "".join( + _format_map[code](*parameters) for code, *parameters in control_codes + ) + self.segment = Segment(rendered_codes, None, control_codes) + + @classmethod + def bell(cls) -> "Control": + """Ring the 'bell'.""" + return cls(ControlType.BELL) + + @classmethod + def home(cls) -> "Control": + """Move cursor to 'home' position.""" + return cls(ControlType.HOME) + + @classmethod + def move(cls, x: int = 0, y: int = 0) -> "Control": + """Move cursor relative to current position. + + Args: + x (int): X offset. + y (int): Y offset. + + Returns: + ~Control: Control object. + + """ + + def get_codes() -> Iterable[ControlCode]: + control = ControlType + if x: + yield ( + control.CURSOR_FORWARD if x > 0 else control.CURSOR_BACKWARD, + abs(x), + ) + if y: + yield ( + control.CURSOR_DOWN if y > 0 else control.CURSOR_UP, + abs(y), + ) + + control = cls(*get_codes()) + return control + + @classmethod + def move_to_column(cls, x: int, y: int = 0) -> "Control": + """Move to the given column, optionally add offset to row. + + Returns: + x (int): absolute x (column) + y (int): optional y offset (row) + + Returns: + ~Control: Control object. + """ + + return ( + cls( + (ControlType.CURSOR_MOVE_TO_COLUMN, x), + ( + ControlType.CURSOR_DOWN if y > 0 else ControlType.CURSOR_UP, + abs(y), + ), + ) + if y + else cls((ControlType.CURSOR_MOVE_TO_COLUMN, x)) + ) + + @classmethod + def move_to(cls, x: int, y: int) -> "Control": + """Move cursor to absolute position. + + Args: + x (int): x offset (column) + y (int): y offset (row) + + Returns: + ~Control: Control object. + """ + return cls((ControlType.CURSOR_MOVE_TO, x, y)) + + @classmethod + def clear(cls) -> "Control": + """Clear the screen.""" + return cls(ControlType.CLEAR) + + @classmethod + def show_cursor(cls, show: bool) -> "Control": + """Show or hide the cursor.""" + return cls(ControlType.SHOW_CURSOR if show else ControlType.HIDE_CURSOR) + + @classmethod + def alt_screen(cls, enable: bool) -> "Control": + """Enable or disable alt screen.""" + if enable: + return cls(ControlType.ENABLE_ALT_SCREEN, ControlType.HOME) + else: + return cls(ControlType.DISABLE_ALT_SCREEN) + + @classmethod + def title(cls, title: str) -> "Control": + """Set the terminal window title + + Args: + title (str): The new terminal window title + """ + return cls((ControlType.SET_WINDOW_TITLE, title)) + + def __str__(self) -> str: + return self.segment.text + + def __rich_console__( + self, console: "Console", options: "ConsoleOptions" + ) -> "RenderResult": + if self.segment.text: + yield self.segment + + +def strip_control_codes( + text: str, _translate_table: Dict[int, None] = _CONTROL_STRIP_TRANSLATE +) -> str: + """Remove control codes from text. + + Args: + text (str): A string possibly contain control codes. + + Returns: + str: String with control codes removed. + """ + return text.translate(_translate_table) + + +def escape_control_codes( + text: str, + _translate_table: Dict[int, str] = CONTROL_ESCAPE, +) -> str: + """Replace control codes with their "escaped" equivalent in the given text. + (e.g. "\b" becomes "\\b") + + Args: + text (str): A string possibly containing control codes. + + Returns: + str: String with control codes replaced with their escaped version. + """ + return text.translate(_translate_table) + + +if __name__ == "__main__": # pragma: no cover + from rich.console import Console + + console = Console() + console.print("Look at the title of your terminal window ^") + # console.print(Control((ControlType.SET_WINDOW_TITLE, "Hello, world!"))) + for i in range(10): + console.set_window_title("🚀 Loading" + "." * i) + time.sleep(0.5) |