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Versions: 52
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Contents
require 'tempfile'
module Dragonfly
module ImageMagick
module Utils
include Shell
include Loggable
include Configurable
configurable_attr :convert_command, "convert"
configurable_attr :identify_command, "identify"
private
def convert(temp_object=nil, args='', format=nil)
tempfile = new_tempfile(format)
run convert_command, %(#{quote(temp_object.path) if temp_object} #{args} #{quote(tempfile.path)})
tempfile
end
def identify(temp_object)
# example of details string:
# myimage.png PNG 200x100 200x100+0+0 8-bit DirectClass 31.2kb
format, width, height, depth = raw_identify(temp_object).scan(/([A-Z0-9]+) (\d+)x(\d+) .+ (\d+)-bit/)[0]
{
:format => format.downcase.to_sym,
:width => width.to_i,
:height => height.to_i,
:depth => depth.to_i
}
end
def raw_identify(temp_object, args='')
run identify_command, "#{args} #{quote(temp_object.path)}"
end
def new_tempfile(ext=nil)
tempfile = ext ? Tempfile.new(['dragonfly', ".#{ext}"]) : Tempfile.new('dragonfly')
tempfile.binmode
tempfile.close
tempfile
end
end
end
end
Version data entries
52 entries across 52 versions & 2 rubygems