Sha256: 883aa48eeb3991c14cafffd079a2e247a8b8bae9df0ce5214f2446c2887e57fb
Contents?: true
Size: 917 Bytes
Versions: 6
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Stored size: 917 Bytes
Contents
# encoding: utf-8
# ImageHandler provides a way to register image processors with Prawn
#
# Contributed by Evan Sharp in November 2013.
#
# This is free software. Please see the LICENSE and COPYING files for details.
module Prawn
# @group Extension API
def self.image_handler
@image_handler ||= ImageHandler.new
end
class ImageHandler
def initialize
@handlers = []
end
def register(handler)
@handlers.delete(handler)
@handlers.push handler
end
def register!(handler)
@handlers.delete(handler)
@handlers.unshift handler
end
def unregister(handler)
@handlers.reject!{ |h| h == handler }
end
def find(image_blob)
handler = @handlers.find{ |h| h.can_render? image_blob }
return handler if handler
raise Prawn::Errors::UnsupportedImageType,
"image file is an unrecognised format"
end
end
end
Version data entries
6 entries across 6 versions & 2 rubygems