Module: Shrine::Plugins::Thumbhash::ImageLoader::MiniMagick

Defined in:
lib/shrine/plugins/thumbhash/image_loader/mini_magick.rb

Overview

:nodoc:

Class Method Summary collapse

Class Method Details

.call(io) ⇒ Object 



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# File 'lib/shrine/plugins/thumbhash/image_loader/mini_magick.rb', line 11

def self.call(io)
  image = load_image(io)
  image = resize_image(image)
  Thumbhash::Image.new(
    image.width,
    image.height,
    repack_pixels_to_flattened_rgba_array(image)
  )
end

.load_image(io) ⇒ Object 



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# File 'lib/shrine/plugins/thumbhash/image_loader/mini_magick.rb', line 21

def self.load_image(io)
  ::MiniMagick::Image.read(io)
end

.repack_pixels_to_flattened_rgba_array(image) ⇒ Object 



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# File 'lib/shrine/plugins/thumbhash/image_loader/mini_magick.rb', line 31

def self.repack_pixels_to_flattened_rgba_array(image)
  image.get_pixels("RGBA").flatten
end

.resize_image(image) ⇒ Object 



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# File 'lib/shrine/plugins/thumbhash/image_loader/mini_magick.rb', line 25

def self.resize_image(image)
  return image if image.width <= 100 && image.height <= 100

  image.resize("100x100")
end