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Contents
require 'attached/processor'
begin
require 'rmagick'
rescue LoadError
require 'RMagick'
rescue LoadError
raise "Installation of 'rmagick' is required before using the 'image' processor"
end
module Attached
class Image < Processor
attr_reader :path
attr_reader :extname
# Create a processor.
#
# Parameters:
#
# * file - The file to be processed.
# * options - The options to be applied to the processing.
# * attachment - The attachment the processor is being run for.
def initialize(file, options = {}, attachment = nil)
super
@path = @file.path
@extname = File.extname(@file.path)
end
# Helper function for calling processors.
#
# Usage:
#
# self.process
def process
result = Tempfile.new(["", options['extension'] || self.extname])
result.binmode
image = ::Magick::Image.read(self.path)
image_list = ::Magick::ImageList.new
width, height, operation = self.options[:size].match(/\b(\d*)x?(\d*)\b([\#\<\>])?/)[1..3] if self.options[:size]
width ||= self.options[:width]
height ||= self.options[:height]
operation ||= self.options[:operation]
width = width.to_i
height = height.to_i
image.each do |frame|
case operation
when /!/ then puts "hi"
when /#/ then image_list << frame.resize_to_fill(width, height)
when /</ then image_list << frame.resize_to_fit(width, height)
when />/ then image_list << frame.resize_to_fit(width, height)
else image_list << frame.resize(width, height)
end
end
image_list.write(result.path)
return result
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems