Module: Imgproxy::OptionsCasters::Alpha

Defined in:
lib/imgproxy/options_casters/alpha.rb

Overview

Casts ‘alpha` info option

Constant Summary collapse

CASTER = 
Imgproxy::OptionsCasters::Group.new(
  alpha: Imgproxy::OptionsCasters::Bool,
  check_transparency: Imgproxy::OptionsCasters::Bool,
).freeze

Class Method Summary collapse

Class Method Details

.cast(raw) ⇒ Object 



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# File 'lib/imgproxy/options_casters/alpha.rb', line 15

def self.cast(raw)
  # Allow alpha to be just a boolean
  return Imgproxy::OptionsCasters::Bool.cast(raw) if [true, false].include?(raw)

  return raw unless raw.is_a?(Hash)
  return if raw[:alpha].nil?

  values = CASTER.cast(raw)
  values[0].zero? ? 0 : values
end