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Dir : /proc/self/root/opt/saltstack/salt/extras-3.10/pip/_vendor/rich/ |
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Dir : //proc/self/root/opt/saltstack/salt/extras-3.10/pip/_vendor/rich/palette.py |
from math import sqrt from functools import lru_cache from typing import Sequence, Tuple, TYPE_CHECKING from .color_triplet import ColorTriplet if TYPE_CHECKING: from pip._vendor.rich.table import Table class Palette: """A palette of available colors.""" def __init__(self, colors: Sequence[Tuple[int, int, int]]): self._colors = colors def __getitem__(self, number: int) -> ColorTriplet: return ColorTriplet(*self._colors[number]) def __rich__(self) -> "Table": from pip._vendor.rich.color import Color from pip._vendor.rich.style import Style from pip._vendor.rich.text import Text from pip._vendor.rich.table import Table table = Table( "index", "RGB", "Color", title="Palette", caption=f"{len(self._colors)} colors", highlight=True, caption_justify="right", ) for index, color in enumerate(self._colors): table.add_row( str(index), repr(color), Text(" " * 16, style=Style(bgcolor=Color.from_rgb(*color))), ) return table # This is somewhat inefficient and needs caching @lru_cache(maxsize=1024) def match(self, color: Tuple[int, int, int]) -> int: """Find a color from a palette that most closely matches a given color. Args: color (Tuple[int, int, int]): RGB components in range 0 > 255. Returns: int: Index of closes matching color. """ red1, green1, blue1 = color _sqrt = sqrt get_color = self._colors.__getitem__ def get_color_distance(index: int) -> float: """Get the distance to a color.""" red2, green2, blue2 = get_color(index) red_mean = (red1 + red2) // 2 red = red1 - red2 green = green1 - green2 blue = blue1 - blue2 return _sqrt( (((512 + red_mean) * red * red) >> 8) + 4 * green * green + (((767 - red_mean) * blue * blue) >> 8) ) min_index = min(range(len(self._colors)), key=get_color_distance) return min_index if __name__ == "__main__": # pragma: no cover import colorsys from typing import Iterable from pip._vendor.rich.color import Color from pip._vendor.rich.console import Console, ConsoleOptions from pip._vendor.rich.segment import Segment from pip._vendor.rich.style import Style class ColorBox: def __rich_console__( self, console: Console, options: ConsoleOptions ) -> Iterable[Segment]: height = console.size.height - 3 for y in range(0, height): for x in range(options.max_width): h = x / options.max_width l = y / (height + 1) r1, g1, b1 = colorsys.hls_to_rgb(h, l, 1.0) r2, g2, b2 = colorsys.hls_to_rgb(h, l + (1 / height / 2), 1.0) bgcolor = Color.from_rgb(r1 * 255, g1 * 255, b1 * 255) color = Color.from_rgb(r2 * 255, g2 * 255, b2 * 255) yield Segment("â–„", Style(color=color, bgcolor=bgcolor)) yield Segment.line() console = Console() console.print(ColorBox())