Class: Chroma::RgbGenerator::FromHexStringValues

Inherits:
Base
  • Object
show all
Defined in:
lib/chroma/rgb_generator/from_hex_string_values.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Helpers::Bounders

#bound01, #bound_alpha, #clamp01, #to_percentage

Constructor Details

#initialize(format, r, g, b, a = 'ff') ⇒ FromHexStringValues

Returns a new instance of FromHexStringValues.

Parameters:

  • format (Symbol) —

    color format

  • r (String) —

    red value

  • g (String) —

    green value

  • b (String) —

    blue value

  • a (String) (defaults to: 'ff') —

    alpha value



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# File 'lib/chroma/rgb_generator/from_hex_string_values.rb', line 9

def initialize(format, r, g, b, a = 'ff')
  @format = format || :hex
  @r, @g, @b, @a = r, g, b, a
end

Class Method Details

.from_hex3(format, r, g, b) ⇒ ColorModes::Rgb

Generates a ColorModes::Rgb from 3-character hexadecimal.

Parameters:

  • format (Symbol) —

    color format

  • r (String) —

    red value

  • g (String) —

    green value

  • b (String) —

    blue value

Returns:



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# File 'lib/chroma/rgb_generator/from_hex_string_values.rb', line 30

def from_hex3(format, r, g, b)
  new(format || :hex3, r * 2, g * 2, b * 2)
end

.from_hex6(format, r, g, b) ⇒ ColorModes::Rgb

Generates a ColorModes::Rgb from 6-character hexadecimal.

Parameters:

  • format (Symbol) —

    color format

  • r (String) —

    red value

  • g (String) —

    green value

  • b (String) —

    blue value

Returns:



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# File 'lib/chroma/rgb_generator/from_hex_string_values.rb', line 41

def from_hex6(format, r, g, b)
  new(format, r, g, b)
end

.from_hex8(format, a, r, g, b) ⇒ ColorModes::Rgb

Generates a ColorModes::Rgb from 8-character hexadecimal.

Parameters:

  • format (Symbol) —

    color format

  • r (String) —

    red value

  • g (String) —

    green value

  • b (String) —

    blue value

  • a (String) —

    alpha value

Returns:



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# File 'lib/chroma/rgb_generator/from_hex_string_values.rb', line 53

def from_hex8(format, a, r, g, b)
  new(format || :hex8, r, g, b, a)
end

Instance Method Details

#generate ⇒ ColorModes::Rgb

Generates a ColorModes::Rgb.

Returns:



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# File 'lib/chroma/rgb_generator/from_hex_string_values.rb', line 16

def generate
  r, g, b = [@r, @g, @b].map { |n| n.to_i(16) }
  a = @a.to_i(16) / 255.0
  [ColorModes::Rgb.new(r, g, b, a), @format]
end