Class: TBird::Processor

Inherits:
Object
  • Object
show all
Defined in:
lib/t_bird/processor.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file_blob) ⇒ Processor

Returns a new instance of Processor.



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# File 'lib/t_bird/processor.rb', line 8

def initialize(file_blob)
  @file_blob = file_blob
  @image = MiniMagick::Image.read(file_blob)
  @tempfile = Tempfile.new(SecureRandom.uuid)
end

Instance Attribute Details

#image ⇒ Object (readonly)

Returns the value of attribute image.



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# File 'lib/t_bird/processor.rb', line 7

def image
  @image
end

Instance Method Details

#original ⇒ Object 



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# File 'lib/t_bird/processor.rb', line 26

def original
  @file_blob
end

#process(&block) ⇒ Object 



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# File 'lib/t_bird/processor.rb', line 14

def process(&block)
  image.combine_options do |img|
    block.call(img) if block_given?
  end
  write_to_file
end

#resize(size) ⇒ Object 



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# File 'lib/t_bird/processor.rb', line 30

def resize(size)
  process do |img|
    img.resize size
  end
end

#thumbnail(thumbnail_size = Configuration.thumbnail_size) ⇒ Object 



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# File 'lib/t_bird/processor.rb', line 36

def thumbnail(thumbnail_size = Configuration.thumbnail_size)
  process do |img|
    img.auto_orient
    img.thumbnail "x#{thumbnail_size*2}"
    img.resize "#{thumbnail_size*2}x<"
    img.resize "50%"
    img.gravity "center"
    img.crop "#{thumbnail_size}x#{thumbnail_size}+0+0"
    img.quality 92
  end
end

#write_to_file ⇒ Object 



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# File 'lib/t_bird/processor.rb', line 21

def write_to_file
  image.write @tempfile
  @tempfile
end