struct Celestine::Color

• Celestine::Color
• Struct
• Value
• Object

Overview

Represents an RGBA/HSLA color with parsing, conversions, and manipulation utilities.

Defined in:

color/color.cr

Constructors

• .hex(str : String) : Color

  Parses hex color strings: "#RGB", "#RGBA", "#RRGGBB", or "#RRGGBBAA"

• .hsl(h : Number, s : Number, l : Number, a : Number = 1.0) : Color

  Creates a color from HSL (h: 0-360, s: 0.0-1.0 or 0-100, l: 0.0-1.0 or 0-100)

• .new(r : Number, g : Number, b : Number, a : Number = 1.0)
• .rgb(r : Number, g : Number, b : Number, a : Number = 1.0) : Color

  Creates a color from RGB integers (0-255) and alpha (0.0-1.0)

Instance Method Summary

• #a : Float64
• #b : UInt8
• #complementary : Color

  Returns the complementary color (180 degree hue shift)

• #darken(amount : Number) : Color

  Darkens color by a fraction (0.0 - 1.0)

• #desaturate(amount : Number) : Color

  Decreases saturation by a fraction (0.0 - 1.0)

• #g : UInt8
• #lighten(amount : Number) : Color

  Lightens color by a fraction (0.0 - 1.0)

• #mix(other : Color, weight : Number = 0.5) : Color

  Mixes this color with another color by weight (0.0 = self, 1.0 = other)

• #r : UInt8
• #saturate(amount : Number) : Color

  Increases saturation by a fraction (0.0 - 1.0)

• #to_hex(include_alpha : Bool = false) : String

  Formats as CSS hex string

• #to_hsl : Tuple(Float64, Float64, Float64)

  Converts this color to HSL representation: {hue, saturation, lightness}

• #to_rgb : String

  Formats as CSS rgb(...) string

• #to_rgba : String

  Formats as CSS rgba(...) string

• #to_s(io : IO) : Nil

  Default string conversion: hex when fully opaque, rgba when translucent

• #to_s : String

  Returns a nicely readable and concise string representation of this object, typically intended for users.

• #with_alpha(new_alpha : Number) : Color

  Returns a copy of this color with adjusted alpha

Constructor Detail

Instance Method Detail