#!/usr/bin/env ruby

target = (__FILE__).gsub(/_small/, '')

CONFIG_FILE = 'plot_config.rb'
config = {
    :SMALL_PLOT => '1, 0.6'
  }
if FileTest::exist?(CONFIG_FILE) then
	puts "CONFIG_FILE ON!"
	eval(open(CONFIG_FILE).read)
end

script = ''
on_modified_target = false
open(target).each{|line|
  if line =~ /def Plotter::plot file_name/ then
    on_modified_target = true
    script += <<-'__STRING__'
def Plotter::plot file_name
	Gnuplot.open{|gp|
		Gnuplot::Plot::new(gp){|plot|
		  file_name.gsub!(/\.eps/, '_small.eps')
			puts "drawing #{file_name} ..."
			plot.terminal "postscript eps enhanced color"
			plot.output file_name
    __STRING__
    script += <<-__STRING__
    plot.set('size', '#{config[:SMALL_PLOT]}')
    __STRING__
		script += <<-'__STRING__'	
			yield plot
		}
	}
end
    __STRING__
    next
  elsif on_modified_target then
    if line =~ /end/ then
      on_modified_target = false
    end
    next
  end
  script += line
}

#puts script
eval(script)