Module: Thumbo

Defined in:
lib/thumbo.rb,
lib/thumbo/proxy.rb,
lib/thumbo/version.rb,
lib/thumbo/storages/mogilefs.rb,
lib/thumbo/storages/filesystem.rb,
lib/thumbo/exceptions/file_not_found.rb

Defined Under Namespace

Modules: ClassMethod Classes: FileNotFound, Filesystem, Mogilefs, Proxy

Constant Summary collapse

VERSION = 
'0.5.0'

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.calculate_dimension(limit, width, height) ⇒ Object 



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# File 'lib/thumbo.rb', line 10

def self.calculate_dimension limit, width, height
  long, short = width >= height ? [width, height] : [height, width]

  if long <= limit # stay on
    [width, height]

  elsif width == height # square
    [limit, limit]

  else # detect which is longer

    # assume width is longer
    new_width, new_height = limit, short * (limit.to_f / long)

    # swap if height is longer
    new_width, new_height = new_height, new_width if long == height

    [new_width, new_height]
  end
end

.included(model) ⇒ Object 



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# File 'lib/thumbo.rb', line 6

def self.included model
  model.extend(Thumbo::ClassMethod)
end

Instance Method Details

#create_thumbos(after_scale = lambda{}) ⇒ Object 



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# File 'lib/thumbo.rb', line 65

def create_thumbos after_scale = lambda{}
  # scale thumbnails
  self.class.thumbo_common.merge(self.class.thumbo_square).each_key{ |title|
    after_scale[ thumbos[title].create ]
  }

  # the last one don't scale at all, but call hook too
  after_scale[ thumbos[:original] ]

  self
end

#thumbo_filename(thumbo) ⇒ Object

same as thumbnail.filename, for writing



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# File 'lib/thumbo.rb', line 57

def thumbo_filename thumbo
  "#{object_id}_#{thumbo.title}.#{thumbo.fileext}"
end

#thumbo_mime_type ⇒ Object 



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# File 'lib/thumbo.rb', line 61

def thumbo_mime_type
  thumbos[:original].mime_type
end

#thumbos ⇒ Object 



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# File 'lib/thumbo.rb', line 52

def thumbos
   @thumbos ||= init_thumbos
end