Contents

class Dvl::Color::FakeRgba
  def self.calculate(background, foreground, alpha)
    bg = background.rgb
    fg = foreground.rgb

    r = (fg.r * alpha) + (bg.r * (1 - alpha))
    g = (fg.g * alpha) + (bg.g * (1 - alpha))
    b = (fg.b * alpha) + (bg.b * (1 - alpha))

    Chroma::Color.new(Chroma::ColorModes::Rgb.new(r, g,  b), :hex)
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
dvl-color-0.0.4	lib/dvl/color/fake_rgba.rb
dvl-color-0.0.3	lib/dvl/color/fake_rgba.rb
dvl-color-0.0.2	lib/dvl/color/fake_rgba.rb
dvl-color-0.0.1	lib/dvl/color/fake_rgba.rb