Class: Libis::Format::Converter::ImageSplitter

Inherits:
Base
  • Object
show all
Defined in:
lib/libis/format/converter/image_splitter.rb

Instance Attribute Summary

Attributes inherited from Base

#flags, #options

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#check_file_exist, inherited, #initialize, using_temp, #using_temp

Constructor Details

This class inherits a constructor from Libis::Format::Converter::Base

Class Method Details

.category ⇒ Object 



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# File 'lib/libis/format/converter/image_splitter.rb', line 36

def self.category
  :splitter
end

.input_types ⇒ Object 



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# File 'lib/libis/format/converter/image_splitter.rb', line 23

def self.input_types
  [:PDF, :TIFF, :GIF, :PBM, :PGM, :PPM]
end

.multipage?(format) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/libis/format/converter/image_splitter.rb', line 32

def self.multipage?(format)
  [:PDF, :TIFF, :GIF, :PBM, :PGM, :PPM].include?(format)
end

.output_types(format = nil) ⇒ Object 



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# File 'lib/libis/format/converter/image_splitter.rb', line 27

def self.output_types(format = nil)
  return [] unless input_types.include?(format) if format
  [:TIFF, :JPG, :PNG, :BMP, :GIF, :PDF, :JP2]
end

Instance Method Details

#convert(source, target, format, opts = {}) ⇒ Object 



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# File 'lib/libis/format/converter/image_splitter.rb', line 48

def convert(source, target, format, opts = {})
  super

  FileUtils.mkpath(File.dirname(target))

  if self.class.multipage?(format)
    target = File.join(File.dirname(target), "#{File.basename(target, '.*')}-%d#{File.extname(target)}")
  end

  result = split_image(source, target, format)
  return nil unless result
  target

end

#image_split(_) ⇒ Object 



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# File 'lib/libis/format/converter/image_splitter.rb', line 40

def image_split(_)
  #force usage of this converter
end

#quiet(v) ⇒ Object 



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# File 'lib/libis/format/converter/image_splitter.rb', line 44

def quiet(v)
  @quiet = !!v
end