render.rb

   1 #!/usr/bin/env ruby
   2
   3 require "rexml/document"
   4 require "fileutils"
   5 include REXML
   6
   7 INKSCAPE = '/usr/bin/inkscape'
   8 SRC = "gnome-osd-icons.svg"
   9 PREFIX = "gnome-osd-icons/16x16"
  10
  11 def chopSVG(icon)
  12         FileUtils.mkdir_p(icon[:dir]) unless File.exists?(icon[:dir])
  13         unless (File.exists?(icon[:file]) && !icon[:forcerender])
  14                 FileUtils.cp(SRC,icon[:file])
  15                 puts " >> #{icon[:name]}"
  16                 cmd = "#{INKSCAPE} -f #{icon[:file]} --select #{icon[:id]} --verb=FitCanvasToSelection  --verb=EditInvertInAllLayers "
  17                 cmd += "--verb=EditDelete --verb=EditSelectAll --verb=SelectionUnGroup --verb=StrokeToPath --verb=FileVacuum "
  18                 cmd += "--verb=FileSave --verb=FileClose > /dev/null 2>&1"
  19                 system(cmd)
  20                 cmd = "#{INKSCAPE} -f #{icon[:file]} -z --vacuum-defs -l #{icon[:file]} > /dev/null 2>&1"
  21                 system(cmd)
  22                 system cmd unless (!icon[:dir].match(/app/))
  23         else
  24                 puts " -- #{icon[:name]} already exists"
  25         end
  26 end #end of function
  27
  28
  29 #main
  30 # Open SVG file.
  31 svg = Document.new(File.new(SRC, 'r'))
  32
  33 if (ARGV[0].nil?) #render all SVGs
  34   puts "Rendering from icons in #{SRC}"
  35         # Go through every layer.
  36         svg.root.each_element("/svg/g[@inkscape:groupmode='layer']") do |context|
  37                 context_name = context.attributes.get_attribute("inkscape:label").value
  38                 puts "Going through layer '" + context_name + "'"
  39                 context.each_element("g") do |icon|
  40                         #puts "DEBUG #{icon.attributes.get_attribute('id')}"
  41                         dir = "#{PREFIX}/#{context_name}"
  42                         icon_name = icon.attributes.get_attribute("inkscape:label").value
  43                         chopSVG({       :name => icon_name,
  44                                                                 :id => icon.attributes.get_attribute("id"),
  45                                                                 :dir => dir,
  46                                                                 :file => "#{dir}/#{icon_name}.svg"})
  47                 end
  48         end
  49   puts "\nrendered all SVGs"
  50 else #only render the icons passed
  51   icons = ARGV
  52   ARGV.each do |icon_name|
  53         icon = svg.root.elements["//g[@inkscape:label='#{icon_name}']"]
  54         dir = "#{PREFIX}/#{icon.parent.attributes['inkscape:label']}"
  55                 chopSVG({       :name => icon_name,
  56                                                         :id => icon.attributes["id"],
  57                                                         :dir => dir,
  58                                                         :file => "#{dir}/#{icon_name}.svg",
  59                                                         :forcerender => true})
  60         end
  61   puts "\nrendered #{ARGV.length} icons"
  62 end