Method: TkComm._genobj_for_tkwidget

Defined in:
lib/tk.rb

._genobj_for_tkwidget(path) ⇒ Object 



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# File 'lib/tk.rb', line 106

def _genobj_for_tkwidget(path)
  return TkRoot.new if path == '.'

  begin
    #tk_class = TkCore::INTERP._invoke('winfo', 'class', path)
    tk_class = Tk.ip_invoke_without_enc('winfo', 'class', path)
  rescue
    return path
  end

  if ruby_class = WidgetClassNames[tk_class]
    ruby_class_name = ruby_class.name
    # gen_class_name = ruby_class_name + 'GeneratedOnTk'
    gen_class_name = ruby_class_name
    classname_def = ''
  else # ruby_class == nil
    if Tk.const_defined?(tk_class)
      Tk.const_get(tk_class)  # auto_load
      ruby_class = WidgetClassNames[tk_class]
    end

    unless ruby_class
      mods = TkExtlibAutoloadModule.find_all{|m| m.const_defined?(tk_class)}
      mods.each{|mod|
        begin
          mod.const_get(tk_class)  # auto_load
          break if (ruby_class = WidgetClassNames[tk_class])
        rescue LoadError
          # ignore load error
        end
      }
    end

    unless ruby_class
      std_class = 'Tk' << tk_class
      if Object.const_defined?(std_class)
        Object.const_get(std_class)  # auto_load
        ruby_class = WidgetClassNames[tk_class]
      end
    end

    unless ruby_class
      if Tk.const_defined?('TOPLEVEL_ALIASES') &&
          Tk::TOPLEVEL_ALIASES.const_defined?(std_class)
        Tk::TOPLEVEL_ALIASES.const_get(std_class)  # auto_load
        ruby_class = WidgetClassNames[tk_class]
      end
    end

    if ruby_class
      # found
      ruby_class_name = ruby_class.name
      gen_class_name = ruby_class_name
      classname_def = ''
    else
      # unknown
      ruby_class_name = 'TkWindow'
      gen_class_name = 'TkWidget_' + tk_class
      classname_def = "WidgetClassName = '#{tk_class}'.freeze"
    end
  end

###################################
=begin
  if ruby_class = WidgetClassNames[tk_class]
    ruby_class_name = ruby_class.name
    # gen_class_name = ruby_class_name + 'GeneratedOnTk'
    gen_class_name = ruby_class_name
    classname_def = ''
  else
    mod = TkExtlibAutoloadModule.find{|m| m.const_defined?(tk_class)}
    if mod
      ruby_class_name = mod.name + '::' + tk_class
      gen_class_name = ruby_class_name
      classname_def = ''
    elsif Object.const_defined?('Tk' + tk_class)
      ruby_class_name = 'Tk' + tk_class
      # gen_class_name = ruby_class_name + 'GeneratedOnTk'
      gen_class_name = ruby_class_name
      classname_def = ''
    else
      ruby_class_name = 'TkWindow'
      # gen_class_name = ruby_class_name + tk_class + 'GeneratedOnTk'
      gen_class_name = 'TkWidget_' + tk_class
      classname_def = "WidgetClassName = '#{tk_class}'.freeze"
    end
  end
=end

=begin
  unless Object.const_defined? gen_class_name
    Object.class_eval "class #{gen_class_name}<#{ruby_class_name}
                         #{classname_def}
                       end"
  end
  Object.class_eval "#{gen_class_name}.new('widgetname'=>'#{path}',
                                           'without_creating'=>true)"
=end
  base = Object
  gen_class_name.split('::').each{|klass|
    next if klass == ''
    if base.const_defined?(klass)
      base = base.class_eval klass
    else
      base = base.class_eval "class #{klass}<#{ruby_class_name}
                                #{classname_def}
                              end
                              #{klass}"
    end
  }
  base.class_eval "#{gen_class_name}.new('widgetname'=>'#{path}',
                                         'without_creating'=>true)"
end