Class: MiddlemanSimpleThumbnailer::Image

Inherits:
Object
  • Object
show all
Defined in:
lib/middleman-simple-thumbnailer/image.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(img_path, resize_to, app, options_hash) ⇒ Image

Returns a new instance of Image.



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 9

def initialize(img_path, resize_to, app, options_hash)
  @img_path = img_path
  @resize_to = resize_to
  @middleman_config = app.config
  @app = app
  @options = options_hash
end

Instance Attribute Details

#img_path ⇒ Object

Returns the value of attribute img_path.



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 7

def img_path
  @img_path
end

#middleman_config ⇒ Object

Returns the value of attribute middleman_config.



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 7

def middleman_config
  @middleman_config
end

#resize_to ⇒ Object

Returns the value of attribute resize_to.



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 7

def resize_to
  @resize_to
end

Instance Method Details

#base64_data ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 25

def base64_data
  prepare_thumbnail
  Base64.strict_encode64(File.read(cached_resized_img_abs_path))
end

#cached_resized_img_abs_path ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 60

def cached_resized_img_abs_path
  File.join(cache_dir, middleman_abs_path).gsub(image_name, resized_image_name).split('.').tap { |a|
    a.insert(-2, image_checksum)
  }.join('.')
end

#middleman_abs_path ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 56

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

#middleman_resized_abs_path ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 52

def middleman_resized_abs_path
  middleman_abs_path.gsub(image_name, resized_image_name)
end

#mime_type ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 17

def mime_type
  image.mime_type
end

#prepare_thumbnail ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 30

def prepare_thumbnail
  unless cached_thumbnail_available?
    resize!
    save_cached_thumbnail
  end
end

#render ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 37

def render
  prepare_thumbnail
  File.read(cached_resized_img_abs_path)
end

#resized_img_abs_path ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 48

def resized_img_abs_path
  File.join(build_dir, middleman_abs_path).gsub(image_name, resized_image_name)
end

#resized_img_path ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 21

def resized_img_path
  img_path.gsub(image_name, resized_image_name)
end

#save! ⇒ Object 



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# File 'lib/middleman-simple-thumbnailer/image.rb', line 43

def save!
  prepare_thumbnail
  FileUtils.copy_file(cached_resized_img_abs_path, resized_img_abs_path)
end