require 'red_artisan/core_image/processor'
module Technoweenie # :nodoc:
module AttachmentFu # :nodoc:
module Processors
module CoreImageProcessor
def self.included(base)
base.send :extend, ClassMethods
base.alias_method_chain :process_attachment, :processing
end
module ClassMethods
def with_image(file, &block)
block.call OSX::CIImage.from(file)
end
end
protected
def process_attachment_with_processing
return unless process_attachment_without_processing
with_image do |img|
self.width = img.extent.size.width if respond_to?(:width)
self.height = img.extent.size.height if respond_to?(:height)
resize_image_or_thumbnail! img
callback_with_args :after_resize, img
end if image?
end
# Performs the actual resizing operation for a thumbnail
def resize_image(img, size)
processor = ::RedArtisan::CoreImage::Processor.new(img)
size = size.first if size.is_a?(Array) && size.length == 1
if size.is_a?(Fixnum) || (size.is_a?(Array) && size.first.is_a?(Fixnum))
if size.is_a?(Fixnum)
processor.fit(size)
else
processor.resize(size[0], size[1])
end
else
new_size = [img.extent.size.width, img.extent.size.height] / size.to_s
processor.resize(new_size[0], new_size[1])
end
processor.render do |result|
self.width = result.extent.size.width if respond_to?(:width)
self.height = result.extent.size.height if respond_to?(:height)
# Get a new temp_path for the image before saving
self.temp_path = Tempfile.new(random_tempfile_filename, Technoweenie::AttachmentFu.tempfile_path).path
result.save self.temp_path, OSX::NSJPEGFileType
self.size = File.size(self.temp_path)
end
end
end
end
end
end
