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Color

Color

Represents a Discord role colour. This class is similar to a (red, green, blue).

There is an alias for this called Colour.

Attributes:

Name Type Description
value int

The raw integer color value.

Operations

  • x == y: Checks if two colors are equal.

  • x != y: Checks if two colors are not equal.

  • str(x): Returns the hex format for the colour.

  • hash(x): Return the color's hash.

  • int(x): Returns the raw color value.

Source code in dismake/models/color.py
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class Color:
    """Represents a Discord role colour. This class is similar
    to a (red, green, blue).

    There is an alias for this called Colour.
    Attributes
    ----------
    value: int
        The raw integer color value.

    Operations
    ----------
    - ``x == y``:
        Checks if two colors are equal.

    - ``x != y``:
        Checks if two colors are not equal.

    - ``str(x)``:
        Returns the hex format for the colour.

    - ``hash(x)``:
        Return the color's hash.

    - ``int(x)``:
        Returns the raw color value.
    """

    def __init__(self, value: int) -> None:
        self.value = value

    def _get_byte(self, byte: int) -> int:
        return (self.value >> (8 * byte)) & 0xFF

    def __eq__(self, other: Any) -> bool:
        return isinstance(other, Color) and self.value == other.value

    def __ne__(self, other: Any) -> bool:
        return not self.__eq__(other)

    def __str__(self) -> str:
        return f"#{self.value:0>6x}"

    def __int__(self) -> int:
        return self.value

    def __repr__(self) -> str:
        return f"<Color value={self.value}>"

    def __hash__(self) -> int:
        return hash(self.value)

    @property
    def r(self) -> int:
        """Returns the red component of the color."""
        return self._get_byte(2)

    @property
    def g(self) -> int:
        """Returns the green component of the color."""
        return self._get_byte(1)

    @property
    def b(self) -> int:
        """Returns the blue component of the color."""
        return self._get_byte(0)

    @property
    def to_rgb(self) -> Tuple[int, int, int]:
        """Returns an (r, g, b) tuple representing the color."""
        return self.r, self.g, self.b

    @classmethod
    def default(cls: Type[CT]) -> CT:
        """A factory method that returns a ``Color`` with a value of ``0``."""
        return cls(0)

    @classmethod
    def from_rgb(cls: Type[CT], r: int, g: int, b: int) -> CT:
        """Constructs a ``Color`` from an RGB tuple."""
        return cls((r << 16) + (g << 8) + b)

    @classmethod
    def from_hsv(cls: Type[CT], h: float, s: float, v: float) -> CT:
        """Constructs a ``Color`` from an HSV tuple."""
        rgb = colorsys.hsv_to_rgb(h, s, v)
        return cls.from_rgb(*(int(x * 255) for x in rgb))

    @classmethod
    def random(
        cls: Type[CT],
        *,
        seed: Optional[Union[int, str, float, bytes, bytearray]] = None,
    ) -> CT:
        """A factory method that returns a ``Color`` with a random hue.

        Parameters
        ----------
        seed: Optional[Union[int, str, float, bytes, bytearray]]
            The seed to initialize the RNG with. If ``None`` is passed the default RNG is used.

        Note
        ----
        The random algorithm works by choosing a colour with a random hue but
        with maxed out saturation and value.
        """
        return cls.from_hsv(
            Random(seed).random() if seed is not None else random(), 1, 1
        )

    @classmethod
    def from_str(cls, value: str) -> "Color":
        """Constructs a ``Color`` from a string.

        The following formats are accepted:

        - ``0x<hex>``
        - ``#<hex>``
        - ``0x#<hex>``
        - ``rgb(<number>, <number>, <number>)``

        Like CSS, ``<number>`` can be either 0-255 or 0-100% and ``<hex>`` can be
        either a 6 digit hex number or a 3 digit hex shortcut (e.g. #FFF).

        Raises
        -------
        ValueError
            The string could not be converted into a color.
        """

        if value[0] == "#":
            return parse_hex_number(value[1:])

        if value[0:2] == "0x":
            rest = value[2:]
            # Legacy backwards compatible syntax
            if rest.startswith("#"):
                return parse_hex_number(rest[1:])
            return parse_hex_number(rest)

        arg = value.lower()
        if arg[0:3] == "rgb":
            return parse_rgb(arg)

        raise ValueError("unknown colour format given")

b property

b: int

Returns the blue component of the color.

g property

g: int

Returns the green component of the color.

r property

r: int

Returns the red component of the color.

to_rgb property

to_rgb: Tuple[int, int, int]

Returns an (r, g, b) tuple representing the color.

default classmethod

default() -> CT

A factory method that returns a Color with a value of 0.

Source code in dismake/models/color.py
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@classmethod
def default(cls: Type[CT]) -> CT:
    """A factory method that returns a ``Color`` with a value of ``0``."""
    return cls(0)

from_hsv classmethod

from_hsv(h: float, s: float, v: float) -> CT

Constructs a Color from an HSV tuple.

Source code in dismake/models/color.py
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@classmethod
def from_hsv(cls: Type[CT], h: float, s: float, v: float) -> CT:
    """Constructs a ``Color`` from an HSV tuple."""
    rgb = colorsys.hsv_to_rgb(h, s, v)
    return cls.from_rgb(*(int(x * 255) for x in rgb))

from_rgb classmethod

from_rgb(r: int, g: int, b: int) -> CT

Constructs a Color from an RGB tuple.

Source code in dismake/models/color.py
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@classmethod
def from_rgb(cls: Type[CT], r: int, g: int, b: int) -> CT:
    """Constructs a ``Color`` from an RGB tuple."""
    return cls((r << 16) + (g << 8) + b)

from_str classmethod

from_str(value: str) -> 'Color'

Constructs a Color from a string.

The following formats are accepted:

  • 0x<hex>
  • #<hex>
  • 0x#<hex>
  • rgb(<number>, <number>, <number>)

Like CSS, <number> can be either 0-255 or 0-100% and <hex> can be either a 6 digit hex number or a 3 digit hex shortcut (e.g. #FFF).

Raises:

Type Description
ValueError

The string could not be converted into a color.

Source code in dismake/models/color.py
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@classmethod
def from_str(cls, value: str) -> "Color":
    """Constructs a ``Color`` from a string.

    The following formats are accepted:

    - ``0x<hex>``
    - ``#<hex>``
    - ``0x#<hex>``
    - ``rgb(<number>, <number>, <number>)``

    Like CSS, ``<number>`` can be either 0-255 or 0-100% and ``<hex>`` can be
    either a 6 digit hex number or a 3 digit hex shortcut (e.g. #FFF).

    Raises
    -------
    ValueError
        The string could not be converted into a color.
    """

    if value[0] == "#":
        return parse_hex_number(value[1:])

    if value[0:2] == "0x":
        rest = value[2:]
        # Legacy backwards compatible syntax
        if rest.startswith("#"):
            return parse_hex_number(rest[1:])
        return parse_hex_number(rest)

    arg = value.lower()
    if arg[0:3] == "rgb":
        return parse_rgb(arg)

    raise ValueError("unknown colour format given")

random classmethod

random(
    *,
    seed: Optional[
        Union[int, str, float, bytes, bytearray]
    ] = None
) -> CT

A factory method that returns a Color with a random hue.

Parameters:

Name Type Description Default
seed Optional[Union[int, str, float, bytes, bytearray]]

The seed to initialize the RNG with. If None is passed the default RNG is used.

None
Note

The random algorithm works by choosing a colour with a random hue but with maxed out saturation and value.

Source code in dismake/models/color.py
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@classmethod
def random(
    cls: Type[CT],
    *,
    seed: Optional[Union[int, str, float, bytes, bytearray]] = None,
) -> CT:
    """A factory method that returns a ``Color`` with a random hue.

    Parameters
    ----------
    seed: Optional[Union[int, str, float, bytes, bytearray]]
        The seed to initialize the RNG with. If ``None`` is passed the default RNG is used.

    Note
    ----
    The random algorithm works by choosing a colour with a random hue but
    with maxed out saturation and value.
    """
    return cls.from_hsv(
        Random(seed).random() if seed is not None else random(), 1, 1
    )