data2model

# File ext/json/lib/json/editor.rb, line 121
    def Editor.data2model(data, model = nil, parent = nil)
      model ||= TreeStore.new(Gdk::Pixbuf, String, String)
      iter = if block_given?
        yield model
      else
        model.append(parent)
      end
      case data
      when Hash
        iter.type = 'Hash'
        data.sort.each do |key, value|
          pair_iter = model.append(iter)
          pair_iter.type    = 'Key'
          pair_iter.content = key.to_s
          Editor.data2model(value, model, pair_iter)
        end
      when Array
        iter.type = 'Array'
        data.each do |value|
          Editor.data2model(value, model, iter)
        end
      when Numeric
        iter.type = 'Numeric'
        iter.content = data.to_s
      when String, true, false, nil
        iter.type    = data.class.name
        iter.content = data.nil? ? 'null' : data.to_s
      else
        iter.type    = 'String'
        iter.content = data.to_s
      end
      model
    end