从JRuby设置qtjambi连接

method_missing methods

class com.trolltech.qt.gui::QWidget
  def method_missing(sym)
    if sym.id2name.start_with?("signal_")
      name = sym.id2name[7, sym.id2name.length]
      f = self.getClass.fields.select {|f| f.name == name }.first
      f.get(self)
    else
      nil
    end
  end
end

$object_action.signal_changed.connect(...)