Class: ImageProcessing::MiniMagick::Processor

Inherits:
Processor
  • Object
show all
Defined in:
lib/image_processing/mini_magick.rb

Constant Summary collapse

IMAGE_CLASS = 
::MiniMagick::Tool
SHARPEN_PARAMETERS = 
{ radius: 0, sigma: 1 }

Instance Method Summary collapse

Methods inherited from Processor

#apply_operation, #custom, #initialize

Constructor Details

This class inherits a constructor from ImageProcessing::Processor

Instance Method Details

#append(magick, *args) ⇒ Object 



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# File 'lib/image_processing/mini_magick.rb', line 49

def append(magick, *args)
  magick.merge! args
end

#limits(magick, options) ⇒ Object 



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# File 'lib/image_processing/mini_magick.rb', line 44

def limits(magick, options)
  limit_args = options.flat_map { |type, value| %W[-limit #{type} #{value}] }
  prepend_args(magick, limit_args)
end

#load_image(path_or_magick, page: nil, geometry: nil, auto_orient: true, **options) ⇒ Object 



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# File 'lib/image_processing/mini_magick.rb', line 53

def load_image(path_or_magick, page: nil, geometry: nil, auto_orient: true, **options)
  if path_or_magick.is_a?(::MiniMagick::Tool)
    magick = path_or_magick
  else
    source_path = path_or_magick
    magick = ::MiniMagick::Tool::Convert.new

    apply_options(magick, options)

    input_path  = source_path
    input_path += "[#{page}]" if page
    input_path += "[#{geometry}]" if geometry

    magick << input_path
  end

  magick.auto_orient if auto_orient
  magick
end

#resize_and_pad(magick, width, height, background: :transparent, gravity: "Center", **options) ⇒ Object 



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# File 'lib/image_processing/mini_magick.rb', line 35

def resize_and_pad(magick, width, height, background: :transparent, gravity: "Center", **options)
  background = "rgba(255,255,255,0.0)" if background.to_s == "transparent"

  thumbnail(magick, "#{width}x#{height}", **options)
  magick.background background
  magick.gravity gravity
  magick.extent "#{width}x#{height}"
end

#resize_to_fill(magick, width, height, gravity: "Center", **options) ⇒ Object 



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# File 'lib/image_processing/mini_magick.rb', line 28

def resize_to_fill(magick, width, height, gravity: "Center", **options)
  thumbnail(magick, "#{width}x#{height}^", **options)
  magick.gravity gravity
  magick.background "rgba(255,255,255,0.0)" # transparent
  magick.extent "#{width}x#{height}"
end

#resize_to_fit(magick, width, height, **options) ⇒ Object 



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# File 'lib/image_processing/mini_magick.rb', line 24

def resize_to_fit(magick, width, height, **options)
  thumbnail(magick, "#{width}x#{height}", **options)
end

#resize_to_limit(magick, width, height, **options) ⇒ Object 



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# File 'lib/image_processing/mini_magick.rb', line 20

def resize_to_limit(magick, width, height, **options)
  thumbnail(magick, "#{width}x#{height}>", **options)
end

#save_image(magick, destination_path, **options) ⇒ Object 



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# File 'lib/image_processing/mini_magick.rb', line 73

def save_image(magick, destination_path, **options)
  apply_options(magick, options)

  magick << destination_path

  magick.call
end