Class: SrcsetImages::ImageVersion

Inherits:
Object
  • Object
show all
Defined in:
lib/middleman-srcset_images/image_version.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(img, resized_img_path, config) ⇒ ImageVersion

resized_img_path is the wrong path here (posts/2013/08-17-kilimanjaro/bay_ls_0.jpg instead of 2013/08/kilimanjaro/bay_ls_0.jpg) but it does not seem to matter since this is apparently fixed by middleman itself through the VersionResource



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# File 'lib/middleman-srcset_images/image_version.rb', line 15

def initialize(img, resized_img_path, config)
  @img = img
  @resized_img_path = resized_img_path
  @config = config

  @default_for_orientation = config[:name] == img.orientation

  @width   = config[:width]
  @height  = config[:height]

  if @width.nil? && @height.nil?
    raise ArgumentError, "need at least width or height!\nconfig was: #{config}"
  end

  ratio = config[:ratio] || img.xy_ratio
  if @width.blank?
    @width = (@height.to_f * ratio).to_i
  end
  if @height.blank?
    @height = (@width.to_f / ratio).to_i
  end

  @crop    = config.fetch :crop, false
  @quality = config.fetch :quality, 80
  @cache_dir = config[:cache_dir]
end

Instance Attribute Details

#app ⇒ Object

Returns the value of attribute app.



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# File 'lib/middleman-srcset_images/image_version.rb', line 8

def app
  @app
end

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/middleman-srcset_images/image_version.rb', line 7

def config
  @config
end

#img ⇒ Object (readonly)

Returns the value of attribute img.



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# File 'lib/middleman-srcset_images/image_version.rb', line 7

def img
  @img
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/middleman-srcset_images/image_version.rb', line 7

def name
  @name
end

#resized_img_path ⇒ Object (readonly)

Returns the value of attribute resized_img_path.



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# File 'lib/middleman-srcset_images/image_version.rb', line 7

def resized_img_path
  @resized_img_path
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/middleman-srcset_images/image_version.rb', line 7

def width
  @width
end

Instance Method Details

#base64_data ⇒ Object 



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# File 'lib/middleman-srcset_images/image_version.rb', line 55

def base64_data
  Base64.strict_encode64 render
end

#cached_resized_img_abs_path ⇒ Object

def middleman_abs_path

img_path.start_with?('/') ? img_path : File.join(images_dir, img_path)

end



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# File 'lib/middleman-srcset_images/image_version.rb', line 74

def cached_resized_img_abs_path
  File.join(@cache_dir, resized_img_path).split('.').tap { |a|
    a.insert(-2, img.checksum)
  }.join('.')
end

#default? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/middleman-srcset_images/image_version.rb', line 47

def default?
  !!config[:is_default]
end

#default_for_orientation? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/middleman-srcset_images/image_version.rb', line 51

def default_for_orientation?
  @default_for_orientation
end

#img_path ⇒ Object 



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# File 'lib/middleman-srcset_images/image_version.rb', line 43

def img_path
  img.rel_path
end

#prepare_image ⇒ Object 



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# File 'lib/middleman-srcset_images/image_version.rb', line 80

def prepare_image
  unless cached_image_available?
    save_cached_image
  end
end

#render ⇒ Object 



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# File 'lib/middleman-srcset_images/image_version.rb', line 59

def render
  prepare_image
  File.read cached_resized_img_abs_path
end