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Contents
module Paperclip
class GeometryDetector
def initialize(file)
@file = file
raise_if_blank_file
end
def make
geometry = GeometryParser.new(geometry_string.strip).make
geometry || raise(Errors::NotIdentifiedByImageMagickError.new)
end
private
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
def path
@file.respond_to?(:path) ? @file.path : @file
end
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
def raise_because_imagemagick_missing
raise Errors::CommandNotFoundError.new("Could not run the `identify` command. Please install ImageMagick.")
end
end
end
Version data entries
28 entries across 26 versions & 6 rubygems