Class: FastImage

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

Defined Under Namespace

Classes: FormatNotSupported

Constant Summary collapse

SUPPORTED_FORMATS = 
[:jpeg, :png, :gif]

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.resize(uri_in, file_out, w, h, options = {}) ⇒ Object 



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# File 'lib/fastimage_resize.rb', line 40

def self.resize(uri_in, file_out, w, h, options={})
  jpeg_quality = options[:jpeg_quality] || -1
  
  u = URI.parse(uri_in)
  if u.scheme == "http" || u.scheme == "https" || u.scheme == "ftp"
    f = Tempfile.new(name)
    f.write(open(u).read)
    f.close
    resize_local(f.path, file_out, w, h, jpeg_quality)
    File.unlink(f.path)
  else
    resize_local(uri_in, file_out, w, h, jpeg_quality)
  end
rescue OpenURI::HTTPError, SocketError
  raise ImageFetchFailure
end

.resize_local(file_in, file_out, w, h, jpeg_quality) ⇒ Object

Raises:



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

def self.resize_local(file_in, file_out, w, h, jpeg_quality)
  fi = new(file_in, :raise_on_failure=>true, :type_only=>true)
  type_index = SUPPORTED_FORMATS.index(fi.type)
  raise FormatNotSupported unless type_index
  fi.resize_image(file_in, file_out, w, h, type_index, jpeg_quality)
end

Instance Method Details

#resize_image(filename_in, filename_out, w, h, image_type, jpeg_quality) ⇒ Object 



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# File 'lib/fastimage_resize.rb', line 64

def resize_image(filename_in, filename_out, w, h, image_type, jpeg_quality); end