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Contents
# Option builder used in #convert and #mogrify helpers. module MojoMagick class OptBuilder def initialize @opts = [] end # Add command-line options with no processing def <<(arg) if arg.is_a?(Array) @opts += arg else @opts << arg end self end # Add files to command line, formatted if necessary def file(*args) @opts << args self end alias files file def label(*args) @opts << "label:#{quoted_arg(args.join)}" end # annotate takes non-standard args def annotate(*args) @opts << "-annotate" arguments = args.join.split arguments.unshift "0" if arguments.length == 1 @opts << arguments end # Create a temporary file for the given image and add to command line def format(*args) @opts << "-format" @opts << args end def blob(*args) data = args[0] opts = args[1] || {} opts.each do |k, v| send(k.to_s, v.to_s) end tmpfile = MojoMagick.tempfile(data, opts) file tmpfile end def image_block(&block) @opts << '\(' yield block @opts << '\)' self end # Generic commands. Arguments will be formatted if necessary def method_missing(command, *args) @opts << if command.to_s[-1, 1] == "!" "+#{command.to_s.chop}" else "-#{command}" end @opts << args self end def to_s to_a.join " " end def to_a @opts.flatten end protected def quoted_arg(arg) return arg unless /[#'<>^|&();` ]/.match?(arg) ['"', arg.gsub('"', '\"').tr("'", "\'"), '"'].join end end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
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mojo_magick-0.6.0 | lib/mojo_magick/opt_builder.rb |