struct Opal::Color

• Opal::Color
• Struct
• Value
• Object

Overview

Color model supporting 16 standard ANSI colors, 256 indexed palette, and 24-bit TrueColor RGB.

Defined in:

opal/style/color.cr

Constructors

• .ansi(code : Int32) : Color
• .from(val : Color | Symbol | String) : Color

  Resolves a symbol or string (e.g.

• .hex(raw : String) : Color

  Parses hex string like "#ff79c6", "61AFEF", or "#fff"

• .index(code : Int32) : Color
• .lerp(c1 : Color, c2 : Color, t : Float64) : Color

  Linearly interpolates between two colors by factor t (0.0 to 1.0)

• .new(type : Type, code : Int32 = 0, r : UInt8 = 0_u8, g : UInt8 = 0_u8, b : UInt8 = 0_u8)
• .none : Color
• .rgb(r : Int, g : Int, b : Int) : Color

Class Method Summary

• .black

  Named color helpers

• .blue
• .bright_black
• .bright_blue
• .bright_cyan
• .bright_green
• .bright_magenta
• .bright_red
• .bright_white
• .bright_yellow
• .cyan
• .green
• .magenta
• .no_color? : Bool

  Checks whether colors are suppressed via NO_COLOR standard

• .red
• .white
• .yellow

Instance Method Summary

• #b : UInt8
• #bg_escape : String

  Emits the ANSI escape code for background

• #code : Int32
• #fg_escape : String

  Emits the ANSI escape code for foreground

• #g : UInt8
• #r : UInt8
• #to_rgb : Tuple(UInt8, UInt8, UInt8)

  Converts color to RGB tuple (approximate for ANSI)

• #type : Type

Constructor Detail

Class Method Detail

Instance Method Detail