class Paperclip::GeometryDetector
Public Class Methods
new(file)
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# File lib/paperclip/geometry_detector_factory.rb, line 3 def initialize(file) @file = file raise_if_blank_file end
Public Instance Methods
make()
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# File lib/paperclip/geometry_detector_factory.rb, line 8 def make geometry = GeometryParser.new(geometry_string.strip).make geometry || raise(Errors::NotIdentifiedByImageMagickError.new) end
Private Instance Methods
geometry_string()
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# File lib/paperclip/geometry_detector_factory.rb, line 15 def geometry_string begin orientation = Paperclip.options[:use_exif_orientation] ? "%[exif:orientation]" : "1" Paperclip.run( "identify", "-format '%wx%h,#{orientation}' :file", { :file => "#{path}[0]" }, { :swallow_stderr => true } ) rescue Cocaine::ExitStatusError "" rescue Cocaine::CommandNotFoundError => e raise_because_imagemagick_missing end end
path()
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# File lib/paperclip/geometry_detector_factory.rb, line 34 def path @file.respond_to?(:path) ? @file.path : @file end
raise_because_imagemagick_missing()
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# File lib/paperclip/geometry_detector_factory.rb, line 44 def raise_because_imagemagick_missing raise Errors::CommandNotFoundError.new("Could not run the `identify` command. Please install ImageMagick.") end
raise_if_blank_file()
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# File lib/paperclip/geometry_detector_factory.rb, line 38 def raise_if_blank_file if path.blank? raise Errors::NotIdentifiedByImageMagickError.new("Cannot find the geometry of a file with a blank name") end end