# File tk/lib/tk/variable.rb, line 56
  def TkVariable.callback(id, name1, name2, op)
    #name1,name2,op = tk_split_list(args)
    #name1,name2,op = tk_split_simplelist(args)
    if cb_obj = TkVar_CB_TBL[id]
      #_get_eval_string(TkVar_CB_TBL[name1].trace_callback(name2,op))
      begin
        _get_eval_string(cb_obj.trace_callback(name2, op))
      rescue SystemExit
        exit(0)
      rescue Interrupt
        exit!(1)
      rescue Exception => e
        begin
          msg = _toUTF8(e.class.inspect) + ': ' +
                _toUTF8(e.message) + "\n" +
                "\n---< backtrace of Ruby side >-----\n" +
                _toUTF8(e.backtrace.join("\n")) +
                "\n---< backtrace of Tk side >-------"
          if TkCore::WITH_ENCODING
            msg.force_encoding('utf-8')
          else
            msg.instance_variable_set(:@encoding, 'utf-8')
          end
        rescue Exception
          msg = e.class.inspect + ': ' + e.message + "\n" +
                "\n---< backtrace of Ruby side >-----\n" +
                e.backtrace.join("\n") +
                "\n---< backtrace of Tk side >-------"
        end
        fail(e, msg)
      end
      begin
        raise 'check backtrace'
      rescue
        # ignore backtrace before 'callback'
        pos = -($!.backtrace.size)
      end
      begin
        _get_eval_string(TkVar_CB_TBL[name1].trace_callback(name2,op))
      rescue
        trace = $!.backtrace
        raise $!, "\n#{trace[0]}: #{$!.message} (#{$!.class})\n" +
                  "\tfrom #{trace[1..pos].join("\n\tfrom ")}"
      end
    else
      ''
    end
  end
            

 
               # File tk/lib/tk/variable.rb, line 283
  def initialize(val="", type=nil)
    # @id = Tk_VARIABLE_ID.join('')
    begin
      Tk_VARIABLE_ID.mutex.synchronize{
        @id = Tk_VARIABLE_ID.join(TkCore::INTERP._ip_id_)
        Tk_VARIABLE_ID[1].succ!
      }
    end until INTERP._invoke_without_enc('info', 'globals', @id).empty?

    TkVar_ID_TBL.mutex.synchronize{
      TkVar_ID_TBL[@id] = self
    }

    @var  = @id
    @elem = nil

    @def_default = false
    @default_val = nil

    @trace_var  = nil
    @trace_elem = nil
    @trace_opts = nil

    @type = nil
    var = self
    @element_type = Hash.new{|k,v| var.default_value_type }

    self.default_value_type = type

    # teach Tk-ip that @id is global var
    INTERP._invoke_without_enc('global', @id)
    #INTERP._invoke('global', @id)

    # create and init
    if val.kind_of?(Hash)
      # assoc-array variable
      self[''] = 0
      self.clear
    end
    self.value = val

    if val == []
      # INTERP._eval(format('global %s; set %s(0) 0; unset %s(0)',
      #                     @id, @id, @id))
    elsif val.kind_of?(Array)
      a = []
      # val.each_with_index{|e,i| a.push(i); a.push(array2tk_list(e))}
      # s = '"' + a.join(" ").gsub(/[\[\]$"]/, '\\\\\&') + '"'
      val.each_with_index{|e,i| a.push(i); a.push(e)}
      #s = '"' + array2tk_list(a).gsub(/[\[\]$"]/, '\\\\\&') + '"'
      s = '"' + array2tk_list(a).gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
      INTERP._eval(format('global %s; array set %s %s', @id, @id, s))
    elsif  val.kind_of?(Hash)
      #s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
      #             .gsub(/[\[\]$"]/, '\\\\\&') + '"'
      s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
                   .gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
      INTERP._eval(format('global %s; array set %s %s', @id, @id, s))
    else
      #s = '"' + _get_eval_string(val).gsub(/[\[\]$"]/, '\\\\\&') + '"'
      s = '"' + _get_eval_string(val).gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
      INTERP._eval(format('global %s; set %s %s', @id, @id, s))
    end
    if  val.kind_of?(Hash)
      #s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
      #             .gsub(/[\[\]$"]/, '\\\\\&') + '"'
      s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
                   .gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
      INTERP._eval(Kernel.format('global %s; array set %s %s', @id, @id, s))
    else
      #s = '"' + _get_eval_string(val).gsub(/[\[\]$"]/, '\\\\\&') + '"'
      s = '"' + _get_eval_string(val).gsub(/[\[\]$"\\]/, '\\\\\&') + '"'
      INTERP._eval(Kernel.format('global %s; set %s %s', @id, @id, s))
    end
  end
            

 
               # File tk/lib/tk/variable.rb, line 107
def self.new_hash(val = {})
  if val.kind_of?(Hash)
    self.new(val)
  else
    fail ArgumentError, 'Hash is expected'
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 1227
def %(other)
  num_or_str(self._value) % other
  #begin
  #  number(self._value) % other
  #rescue
  #  self._value % other
  #end
end
            

 
               # File tk/lib/tk/variable.rb, line 1181
def &(other)
  if other.kind_of?(Array)
    self.to_a & other.to_a
  else
    self.to_i & other.to_i
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 1216
def *(other)
  num_or_str(self._value) * other
  #begin
  #  number(self._value) * other
  #rescue
  #  self._value * other
  #end
end
            

 
               # File tk/lib/tk/variable.rb, line 1235
def **(other)
  number(self._value) ** other
end
            

 
               # File tk/lib/tk/variable.rb, line 1195
def +(other)
  case other
  when Array
    self.to_a + other
  when String
    self._value + other
  else
    begin
      number(self._value) + other
    rescue
      self._value + other.to_s
    end
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 1174
def +@
  self.numeric
end
            

 
               # File tk/lib/tk/variable.rb, line 1209
def -(other)
  if other.kind_of?(Array)
    self.to_a - other
  else
    number(self._value) - other
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 1177
def -@
  -(self.numeric)
end
            

 
               # File tk/lib/tk/variable.rb, line 1224
def /(other)
  number(self._value) / other
end
            

 
               # File tk/lib/tk/variable.rb, line 1281
def <=>(other)
  if other.kind_of?(TkVariable)
    begin
      val = other.numeric
      other = val
    rescue
      other = other._value
    end
  elsif other.kind_of?(Numeric)
    begin
      return self.numeric <=> other
    rescue
      return self._value <=> other.to_s
    end
  elsif other.kind_of?(Array)
    return self.list <=> other
  else
    return self._value <=> other
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 1242
def ==(other)
  case other
  when TkVariable
    #self.equal?(other)
    self._value == other._value
  when String
    self.to_s == other
  when Symbol
    self.to_sym == other
  when Integer
    self.to_i == other
  when Float
    self.to_f == other
  when Array
    self.to_a == other
  when Hash
    # false if self is not an assoc array
    self._value == other
  else
    # false
    self._value == _get_eval_string(other)
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 1266
def ===(other)
  if other.kind_of?(TkVariable)
    self.id == other.id
  else
    super
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 1238
def =~(other)
  self._value =~ other
end
            

 
               # File tk/lib/tk/variable.rb, line 686
def [](*idxs)
  _to_default_element_type(idxs, _element_value(*idxs))
end
            

 
               # File tk/lib/tk/variable.rb, line 530
def []=(*args)
  val = args.pop
  type = default_element_value_type(args)
  val = val._value if !type && type != :variable && val.kind_of?(TkVariable)
  index = args.collect{|idx| _get_eval_string(idx, true)}.join(',')
  _fromUTF8(INTERP._set_global_var2(@id, index, _get_eval_string(val, true)))
  #_fromUTF8(INTERP._set_global_var2(@id, _toUTF8(_get_eval_string(index)),
  #                                 _toUTF8(_get_eval_string(val))))
  #_fromUTF8(INTERP._set_global_var2(@id, _get_eval_string(index, true),
  #                                 _get_eval_string(val, true)))
end
            

 
               # File tk/lib/tk/variable.rb, line 775
  def bool
    TkComm.bool(_value)
    # see Tcl_GetBoolean man-page
    case _value.downcase
    when '0', 'false', 'no', 'off'
      false
    else
      true
    end
  end
            

 
               # File tk/lib/tk/variable.rb, line 787
def bool_element(*idxs)
  TkComm.bool(_element_value(*idxs))
end
            

 
               # File tk/lib/tk/variable.rb, line 443
def clear
  if (is_scalar?)
    fail RuntimeError, 'cannot clear a scalar variable'
  end
  keys.each{|k| unset(k)}
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1157
def coerce(other)
  case other
  when TkVariable
    [other._value, self._value]
  when String
    [other, self.to_s]
  when Symbol
    [other, self.to_sym]
  when Numeric
    [other, self.numeric]
  when Array
    [other, self.to_a]
  else
    [other, self._value]
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 149
def default_element_value_type(idxs)
  if idxs.kind_of?(Array)
    index = idxs.collect{|idx| _get_eval_string(idx, true)}.join(',')
  else
    index = _get_eval_string(idxs, true)
  end
  @element_type[index]
end
            

 
               # File tk/lib/tk/variable.rb, line 134
def default_proc(cmd = Proc.new)
  @def_default = :proc
  @default_val = cmd
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 118
def default_value(val=nil, &b)
  if b
    @def_default = :proc
    @default_val = proc(&b)
  else
    @def_default = :val
    @default_val = val
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 146
def default_value_type
  @type
end
            

 
               # File tk/lib/tk/variable.rb, line 1104
def element_lappend(idxs, *elems)
  if idxs.kind_of?(Array)
    idxs = idxs.collect{|idx| _get_eval_string(idx, true)}.join(',')
  end
  tk_call('lappend', "#{@id}(#{idxs})", *elems)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1136
def element_lget_f(elem_idxs, idx)
  number(element_lget(elem_idxs, idx)).to_f
end
            

 
               # File tk/lib/tk/variable.rb, line 1129
def element_lget_i(elem_idxs, idx)
  number(element_lget(elem_idxs, idx)).to_i
end
            

 
               # File tk/lib/tk/variable.rb, line 1116
def element_lindex(elem_idxs, idx)
  if elem_idxs.kind_of?(Array)
    val = _element_value(*elem_idxs)
  else
    val = _element_value(elem_idxs)
  end
  tk_call('lindex', val, idx)
end
            

 
               # File tk/lib/tk/variable.rb, line 1144
def element_lset(elem_idxs, idx, val)
  if elem_idxs.kind_of?(Array)
    idxs = elem_idxs.collect{|i| _get_eval_string(i, true)}.join(',')
  end
  tk_call('lset', "#{@id}(#{idxs})", idx, val)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 951
def element_to_f(*idxs)
  number(_element_value(*idxs)).to_f
end
            

 
               # File tk/lib/tk/variable.rb, line 944
def element_to_i(*idxs)
  number(_element_value(*idxs)).to_i
end
            

 
               # File tk/lib/tk/variable.rb, line 961
def element_to_s(*idxs)
  _element_value(*idxs)
end
            

 
               # File tk/lib/tk/variable.rb, line 997
def element_to_sym(*idxs)
  _element_value(*idxs).intern
end
            

 
               # File tk/lib/tk/variable.rb, line 388
def eventloop_tkwait
  wait(false, true)
end
            

 
               # File tk/lib/tk/variable.rb, line 379
def eventloop_wait(check_root = false)
  wait(false, check_root)
end
            

 
               # File tk/lib/tk/variable.rb, line 415
def exist?(*elems)
  INTERP._invoke_without_enc('global', @id)
  if elems.empty?
    TkComm.bool(tk_call('info', 'exist', @id))
  else
    # array
    index = elems.collect{|idx| _get_eval_string(idx, true)}.join(',')
    TkComm.bool(tk_call('info', 'exist', "#{@id}")) &&
      TkComm.bool(tk_call('info', 'exist', "#{@id}(#{index})"))
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 395
def id
  @id
end
            

 
               # File tk/lib/tk/variable.rb, line 1152
def inspect
  #Kernel.format "#<TkVariable: %s>", @id
  '#<TkVariable: ' + @id + '>'
end
            

 
               # File tk/lib/tk/variable.rb, line 404
def is_hash?
  #ITNERP._eval("global #{@id}; array exist #{@id}") == '1'
  INTERP._invoke_without_enc('global', @id)
  # INTERP._invoke_without_enc('array', 'exist', @id) == '1'
  TkComm.bool(INTERP._invoke_without_enc('array', 'exist', @id))
end
            

 
               # File tk/lib/tk/variable.rb, line 411
def is_scalar?
  ! is_hash?
end
            

 
               # File tk/lib/tk/variable.rb, line 427
def keys
  if (is_scalar?)
    fail RuntimeError, 'cannot get keys from a scalar variable'
  end
  #tk_split_simplelist(INTERP._eval("global #{@id}; array get #{@id}"))
  INTERP._invoke_without_enc('global', @id)
  #tk_split_simplelist(INTERP._fromUTF8(INTERP._invoke_without_enc('array', 'names', @id)))
  tk_split_simplelist(INTERP._invoke_without_enc('array', 'names', @id),
                      false, true)
end
            

 
               # File tk/lib/tk/variable.rb, line 1100
def lappend(*elems)
  tk_call('lappend', @id, *elems)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1133
def lget_f(idx)
  number(lget(idx)).to_f
end
            

 
               # File tk/lib/tk/variable.rb, line 1126
def lget_i(idx)
  number(lget(idx)).to_i
end
            

 
               # File tk/lib/tk/variable.rb, line 1112
def lindex(idx)
  tk_call('lindex', self._value, idx)
end
            

 
               # File tk/lib/tk/variable.rb, line 1027
def list
  #tk_split_list(value)
  tk_split_simplelist(_value)
end
            

 
               # File tk/lib/tk/variable.rb, line 1033
def list_element(*idxs)
  tk_split_simplelist(_element_value(*idxs))
end
            

 
               # File tk/lib/tk/variable.rb, line 1140
def lset(idx, val)
  tk_call('lset', @id, idx, val)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 22
def mutex; @mutex; end
            

 
               # File tk/lib/tk/variable.rb, line 1277
def nonzero?
  !(numeric.zero?)
end
            

 
               # File tk/lib/tk/variable.rb, line 730
def numeric
  number(_value)
end
            

 
               # File tk/lib/tk/variable.rb, line 733
def numeric_element(*idxs)
  number(_element_value(*idxs))
end
            

 
               # File tk/lib/tk/variable.rb, line 1038
def numlist
  list.collect!{|val| number(val)}
end
            

 
               # File tk/lib/tk/variable.rb, line 1041
def numlist_element(*idxs)
  list_element(*idxs).collect!{|val| number(val)}
end
            

 
               # File tk/lib/tk/variable.rb, line 899
def procedure
  TkComm.procedure(self._value)
end
            

 
               # File tk/lib/tk/variable.rb, line 902
def procedure_element(*idxs)
  TkComm.procedure(_element_value(*idxs))
end
            

 
               # File tk/lib/tk/variable.rb, line 399
def ref(*idxs)
  # "#{@id}(#{idxs.collect{|idx| _get_eval_string(idx)}.join(',')})"
  TkVarAccess.new("#{@id}(#{idxs.collect{|idx| _get_eval_string(idx)}.join(',')})")
end
            

 
               # File tk/lib/tk/variable.rb, line 790
def set_bool(val)
  if ! val
    self.value = '0'
  else
    case val.to_s.downcase
    when 'false', '0', 'no', 'off'
      self.value = '0'
    else
      self.value = '1'
    end
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 804
def set_bool_element(idxs, val)
  if ! val
    val = '0'
  else
    case val.to_s.downcase
    when 'false', '0', 'no', 'off'
      val = '0'
    else
      val = '1'
    end
  end
  if idxs.kind_of?(Array)
    self[*idxs]=val
  else
    self[idxs]=val
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 828
def set_bool_element_type(idxs, val)
  self.set_default_element_value_type(idxs, :bool)
  self.set_bool_element(idxs, val)
end
            

 
               # File tk/lib/tk/variable.rb, line 822
def set_bool_type(val)
  @type = :bool
  self.bool=(val)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 227
def set_default_element_value_type(idxs, type)
  _set_default_value_type_core(type, idxs)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 128
def set_default_value(val)
  @def_default = :val
  @default_val = val
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 221
def set_default_value_type(type)
  _set_default_value_type_core(type, nil)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 703
def set_element_value(idxs, val)
  if idxs.kind_of?(Array)
    self[*idxs]=val
  else
    self[idxs]=val
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 720
def set_element_value_type(idxs, val)
  self.set_default_element_value_type(idxs, val.class)
  if idxs.kind_of?(Array)
    self[*idxs]=val
  else
    self[idxs]=val
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1045
def set_list(val)
  case val
  when Array
    self.value=(val)
  when TkVariable
    self.value=(val.list)
  else
    raise ArgumentError, "Array is expected"
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1061
def set_list_element(idxs, val)
  case val
  when Array
    val
  when TkVariable
    val = val.list
  else
    raise ArgumentError, "Array is expected"
  end
  if idxs.kind_of?(Array)
    self[*idxs]=val
  else
    self[idxs]=val
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1085
def set_list_element_type(idxs, val)
  self.set_default_element_value_type(idxs, :list)
  self.set_list_element(idxs, val)
end
            

 
               # File tk/lib/tk/variable.rb, line 1079
def set_list_type(val)
  @type = :list
  self.list=(val)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 736
def set_numeric(val)
  case val
  when Numeric
    self.value=(val)
  when TkVariable
    self.value=(val.numeric)
  else
    raise ArgumentError, "Numeric is expected"
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 748
def set_numeric_element(idxs, val)
  case val
  when Numeric
    val
  when TkVariable
    val = val.numeric
  else
    raise ArgumentError, "Numeric is expected"
  end
  if idxs.kind_of?(Array)
    self[*idxs]=val
  else
    self[idxs]=val
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 770
def set_numeric_element_type(idxs, val)
  self.set_default_element_value_type(idxs, :numeric)
  self.set_numeric_element(idxs, val)
end
            

 
               # File tk/lib/tk/variable.rb, line 764
def set_numeric_type(val)
  @type = :numeric
  self.numeric=(val)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1095
def set_numlist_element_type(idxs, val)
  self.set_default_element_value_type(idxs, :numlist)
  self.set_numlist_element(idxs, val)
end
            

 
               # File tk/lib/tk/variable.rb, line 1089
def set_numlist_type(val)
  @type = :numlist
  self.numlist=(val)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 905
def set_procedure(cmd)
  self.value = cmd
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 910
def set_procedure_element(idxs, cmd)
  cmd = cmd._value if cmd.kind_of?(TkVariable)
  if idxs.kind_of?(Array)
    self[*idxs]=cmd
  else
    self[idxs]=cmd
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 925
def set_procedure_element_type(idxs, cmd)
  self.set_default_element_value_type(idxs, :procedure)
  self.set_proceure_element(idxs, cmd)
end
            

 
               # File tk/lib/tk/variable.rb, line 919
def set_procedure_type(cmd)
  @type = :procedure
  self.procedure=(cmd)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 967
def set_string(val)
  val = val._value if val.kind_of?(TkVariable)
  self.value=val
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 973
def set_string_element(idxs, val)
  val = val._value if val.kind_of?(TkVariable)
  if idxs.kind_of?(Array)
    self[*idxs]=val
  else
    self[idxs]=val
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 988
def set_string_element_type(idxs, val)
  self.set_default_element_value_type(idxs, :string)
  self.set_string_element(idxs, val)
end
            

 
               # File tk/lib/tk/variable.rb, line 982
def set_string_type(val)
  @type = :string
  self.string=(val)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1001
def set_symbol(val)
  val = val._value if val.kind_of?(TkVariable)
  self.value=val
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1007
def set_symbol_element(idxs, val)
  val = val._value if val.kind_of?(TkVariable)
  if idxs.kind_of?(Array)
    self[*idxs]=val
  else
    self[idxs]=val
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1022
def set_symbol_element_type(idxs, val)
  self.set_default_element_value_type(idxs, :symbol)
  self.set_symbol_element(idxs, val)
end
            

 
               # File tk/lib/tk/variable.rb, line 1016
def set_symbol_type(val)
  @type = :symbol
  self.value=(val)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 690
def set_value(val)
  self.value = val
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 712
def set_value_type(val)
  self.default_value_type = val.class
  self.value = val
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 840
def set_variable(var)
  var = var.id if var.kind_of?(TkVariable)
  self.value = var
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 846
def set_variable_element(idxs, var)
  var = var.id if var.kind_of?(TkVariable)
  if idxs.kind_of?(Array)
    self[*idxs]=var
  else
    self[idxs]=var
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 862
def set_variable_element_type(idxs, var)
  self.set_default_element_value_type(idxs, :variable)
  self.set_variable_element(idxs, var)
end
            

 
               # File tk/lib/tk/variable.rb, line 855
def set_variable_type(var)
  @type = :variable
  var = var.id if var.kind_of?(TkVariable)
  self.value = var
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 873
def set_window(win)
  win = win._value if win.kind_of?(TkVariable)
  self.value = win
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 879
def set_window_element(idxs, win)
  win = win._value if win.kind_of?(TkVariable)
  if idxs.kind_of?(Array)
    self[*idxs]=win
  else
    self[idxs]=win
  end
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 894
def set_window_element_type(idxs, win)
  self.set_default_element_value_type(idxs, :window)
  self.set_window_element(idxs, win)
end
            

 
               # File tk/lib/tk/variable.rb, line 888
def set_window_type(win)
  @type = :window
  self.window=(win)
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 438
def size
  INTERP._invoke_without_enc('global', @id)
  TkComm.number(INTERP._invoke_without_enc('array', 'size', @id))
end
            

 
               # File tk/lib/tk/variable.rb, line 964
def string_element(*idxs)
  _element_value(*idxs)
end
            

 
               # File tk/lib/tk/variable.rb, line 391
def thread_tkwait
  wait(true, true)
end
            

 
               # File tk/lib/tk/variable.rb, line 382
def thread_wait(check_root = false)
  wait(true, check_root)
end
            

 
               # File tk/lib/tk/variable.rb, line 385
def tkwait(on_thread = true)
  wait(on_thread, true)
end
            

 
               # File tk/lib/tk/variable.rb, line 1302
def to_eval
  @id
end
            

 
               # File tk/lib/tk/variable.rb, line 948
def to_f
  number(_value).to_f
end
            

 
               # File tk/lib/tk/variable.rb, line 695
def to_hash
  hash = {}
  self.keys.each{|k|
    hash[k] = self[k]
  }
  hash
end
            

 
               # File tk/lib/tk/variable.rb, line 940
def to_i
  number(_value).to_i
end
            

 
               # File tk/lib/tk/variable.rb, line 930
def to_proc
  cmd = self.procedure
  if cmd.respond_to?(:call)
    cmd
  else
    # cmd is a String
    cmd.to_sym.to_proc
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 955
def to_s
  #string(value).to_s
  _value
end
            

 
               # File tk/lib/tk/variable.rb, line 993
def to_sym
  _value.intern
end
            

 
               # File tk/lib/tk/variable.rb, line 1375
def trace(opts, cmd = Proc.new)
  opts = _check_trace_opt(opts)
  (@trace_var ||= []).unshift([opts,cmd])

  if @trace_opts == nil
    TkVar_CB_TBL[@id] = self
    @trace_opts = opts.dup
    if USE_OLD_TRACE_OPTION_STYLE
      Tk.tk_call_without_enc('trace', 'variable',
                             @id, @trace_opts, 'rb_var ' << @id)
    else
      Tk.tk_call_without_enc('trace', 'add', 'variable',
                             @id, @trace_opts, 'rb_var ' << @id)
    end
  else
    newopts = @trace_opts.dup
    if USE_OLD_TRACE_OPTION_STYLE
      opts.each_byte{|c| newopts.concat(c.chr) unless newopts.index(c.chr)}
      if newopts != @trace_opts
        Tk.tk_call_without_enc('trace', 'vdelete',
                               @id, @trace_opts, 'rb_var ' << @id)
        @trace_opts.replace(newopts)
        Tk.tk_call_without_enc('trace', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
      end
    else
      newopts |= opts
      unless (newopts - @trace_opts).empty?
        Tk.tk_call_without_enc('trace', 'remove', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
        @trace_opts.replace(newopts)
        Tk.tk_call_without_enc('trace', 'add', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
      end
    end
  end

  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1306
def trace_callback(elem, op)
  if @trace_var.kind_of? Array
    @trace_var.each{|m,e| e.call(self,elem,op) if m.index(op)}
  end
  if elem.kind_of?(String) && elem != ''
    if @trace_elem.kind_of?(Hash) && @trace_elem[elem].kind_of?(Array)
      @trace_elem[elem].each{|m,e| e.call(self,elem,op) if m.index(op)}
    end
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 1415
def trace_element(elem, opts, cmd = Proc.new)
  if @elem
    fail(RuntimeError,
         "invalid for a TkVariable which denotes an element of Tcl's array")
  end

  opts = _check_trace_opt(opts)

  ((@trace_elem ||= {})[elem] ||= []).unshift([opts,cmd])

  if @trace_opts == nil
    TkVar_CB_TBL[@id] = self
    @trace_opts = opts.dup
    if USE_OLD_TRACE_OPTION_STYLE
      Tk.tk_call_without_enc('trace', 'add', 'variable',
                             @id, @trace_opts, 'rb_var ' << @id)
    else
      Tk.tk_call_without_enc('trace', 'variable',
                             @id, @trace_opts, 'rb_var ' << @id)
    end
  else
    newopts = @trace_opts.dup
    if USE_OLD_TRACE_OPTION_STYLE
      opts.each_byte{|c| newopts.concat(c.chr) unless newopts.index(c.chr)}
      if newopts != @trace_opts
        Tk.tk_call_without_enc('trace', 'vdelete',
                               @id, @trace_opts, 'rb_var ' << @id)
        @trace_opts.replace(newopts)
        Tk.tk_call_without_enc('trace', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
      end
    else
      newopts |= opts
      unless (newopts - @trace_opts).empty?
        Tk.tk_call_without_enc('trace', 'remove', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
        @trace_opts.replace(newopts)
        Tk.tk_call_without_enc('trace', 'add', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
      end
    end
  end

  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1461
def trace_info
  return [] unless @trace_var
  @trace_var.dup
end
            

 
               # File tk/lib/tk/variable.rb, line 1467
def trace_info_for_element(elem)
  if @elem
    fail(RuntimeError,
         "invalid for a TkVariable which denotes an element of Tcl's array")
  end
  return [] unless @trace_elem
  return [] unless @trace_elem[elem]
  @trace_elem[elem].dup
end
            

 
               # File tk/lib/tk/variable.rb, line 1478
def trace_remove(opts,cmd)
  return self unless @trace_var.kind_of? Array

  opts = _check_trace_opt(opts)

  idx = -1
  if USE_OLD_TRACE_OPTION_STYLE
    newopts = ''
    @trace_var.each_with_index{|e, i|
      if idx < 0 && e[1] == cmd
        diff = false
        ['a', 'r', 'w', 'u'].each{|c|
          break if (diff = e[0].index(c) ^ opts.index(c))
        }
        unless diff
          #find
          idx = i
          next
        end
      end
      e[0].each_byte{|c| newopts.concat(c.chr) unless newopts.index(c.chr)}
    }
  else
    newopts = []
    @trace_var.each_with_index{|e, i|
      if idx < 0 && e[1] == cmd &&
          e[0].size == opts.size && (e[0] - opts).empty?
        # find
        idx = i
        next
      end
      newopts |= e[0]
    }
  end

  if idx >= 0
    @trace_var.delete_at(idx)
  else
    return self
  end

  (@trace_elem ||= {}).each{|elem|
    @trace_elem[elem].each{|e|
      if USE_OLD_TRACE_OPTION_STYLE
        e[0].each_byte{|c| newopts.concat(c.chr) unless newopts.index(c.chr)}
      else
        newopts |= e[0]
      end
    }
  }

  if USE_OLD_TRACE_OPTION_STYLE
    diff = false
    @trace_opts.each_byte{|c| break if (diff = ! newopts.index(c))}
    if diff
      Tk.tk_call_without_enc('trace', 'vdelete',
                             @id, @trace_opts, 'rb_var ' << @id)
      @trace_opts.replace(newopts)
      unless @trace_opts.empty?
        Tk.tk_call_without_enc('trace', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
      end
    end
  else
    unless (@trace_opts - newopts).empty?
      Tk.tk_call_without_enc('trace', 'remove', 'variable',
                             @id, @trace_opts, 'rb_var ' << @id)
      @trace_opts.replace(newopts)
      unless @trace_opts.empty?
        Tk.tk_call_without_enc('trace', 'add', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
      end
    end
  end

  self
end
            

 
               # File tk/lib/tk/variable.rb, line 1558
def trace_remove_for_element(elem,opts,cmd)
  if @elem
    fail(RuntimeError,
         "invalid for a TkVariable which denotes an element of Tcl's array")
  end
  return self unless @trace_elem.kind_of? Hash
  return self unless @trace_elem[elem].kind_of? Array

  opts = _check_trace_opt(opts)

  idx = -1
  if USE_OLD_TRACE_OPTION_STYLE
    @trace_elem[elem].each_with_index{|e, i|
      if idx < 0 && e[1] == cmd
        diff = false
        ['a', 'r', 'w', 'u'].each{|c|
          break if (diff = e[0].index(c) ^ opts.index(c))
        }
        unless diff
          #find
          idx = i
          next
        end
      end
    }
  else
    @trace_elem[elem].each_with_index{|e, i|
      if idx < 0 && e[1] == cmd &&
          e[0].size == opts.size && (e[0] - opts).empty?
        # find
        idx = i
        next
      end
    }
  end

  if idx >= 0
    @trace_elem[elem].delete_at(idx)
  else
    return self
  end

  if USE_OLD_TRACE_OPTION_STYLE
    newopts = ''
    @trace_var.each{|e|
      e[0].each_byte{|c| newopts.concat(c.chr) unless newopts.index(c.chr)}
    }
    @trace_elem.each{|elem|
      @trace_elem[elem].each{|e|
        e[0].each_byte{|c| newopts.concat(c.chr) unless newopts.index(c.chr)}
      }
    }
  else
    newopts = []
    @trace_var.each{|e|
      newopts |= e[0]
    }
    @trace_elem.each{|elem|
      @trace_elem[elem].each{|e|
        e[0].each_byte{|c| newopts.concat(c.chr) unless newopts.index(c.chr)}
      }
    }
  end

  if USE_OLD_TRACE_OPTION_STYLE
    diff = false
    @trace_opts.each_byte{|c| break if (diff = ! newopts.index(c))}
    if diff
      Tk.tk_call_without_enc('trace', 'vdelete',
                             @id, @trace_opts, 'rb_var ' << @id)
      @trace_opts.replace(newopts)
      unless @trace_opts.empty?
        Tk.tk_call_without_enc('trace', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
      end
    end
  else
    unless (@trace_opts - newopts).empty?
      Tk.tk_call_without_enc('trace', 'remove', 'variable',
                             @id, @trace_opts, 'rb_var ' << @id)
      @trace_opts.replace(newopts)
      unless @trace_opts.empty?
        Tk.tk_call_without_enc('trace', 'add', 'variable',
                               @id, @trace_opts, 'rb_var ' << @id)
      end
    end
  end

  self
end
            

 
               # File tk/lib/tk/variable.rb, line 140
def undef_default
  @default_val = nil
  @def_default = false
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 542
def unset(*elems)
  if elems.empty?
    INTERP._unset_global_var(@id)
  else
    index = elems.collect{|idx| _get_eval_string(idx, true)}.join(',')
    INTERP._unset_global_var2(@id, index)
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 451
def update(hash)
  if (is_scalar?)
    fail RuntimeError, 'cannot update a scalar variable'
  end
  hash.each{|k,v| self[k] = v}
  self
end
            

 
               # File tk/lib/tk/variable.rb, line 682
def value
  _to_default_type(_value)
end
            

 
               # File tk/lib/tk/variable.rb, line 480
  def value=(val)
    val = val._value if !@type && @type != :variable && val.kind_of?(TkVariable)
    if val.kind_of?(Hash)
      self.clear
      val.each{|k, v|
        #INTERP._set_global_var2(@id, _toUTF8(_get_eval_string(k)),
        #                       _toUTF8(_get_eval_string(v)))
        INTERP._set_global_var2(@id, _get_eval_string(k, true),
                                _get_eval_string(v, true))
      }
      self.value
#    elsif val.kind_of?(Array)
      INTERP._set_global_var(@id, '')
      val.each{|v|
        #INTERP._set_variable(@id, _toUTF8(_get_eval_string(v)),
        INTERP._set_variable(@id, _get_eval_string(v, true),
                             TclTkLib::VarAccessFlag::GLOBAL_ONLY   |
                             TclTkLib::VarAccessFlag::LEAVE_ERR_MSG |
                             TclTkLib::VarAccessFlag::APPEND_VALUE  |
                             TclTkLib::VarAccessFlag::LIST_ELEMENT)
      }
      self.value
#      _fromUTF8(INTERP._set_global_var(@id, array2tk_list(val, true)))
    else
      #_fromUTF8(INTERP._set_global_var(@id, _toUTF8(_get_eval_string(val))))
      _fromUTF8(INTERP._set_global_var(@id, _get_eval_string(val, true)))
    end
  end
            

 
               # File tk/lib/tk/variable.rb, line 833
def variable
  # keeps a Tcl's variable name
  TkVarAccess.new(self._value)
end
            

 
               # File tk/lib/tk/variable.rb, line 837
def variable_element(*idxs)
  TkVarAccess.new(_element_value(*idxs))
end
            

 
               # File tk/lib/tk/variable.rb, line 363
def wait(on_thread = false, check_root = false)
  on_thread &= (Thread.list.size != 1)
  if on_thread
    if check_root
      INTERP._thread_tkwait('variable', @id)
    else
      INTERP._thread_vwait(@id)
    end
  else
    if check_root
      INTERP._invoke_without_enc('tkwait', 'variable', @id)
    else
      INTERP._invoke_without_enc('vwait', @id)
    end
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 867
def window
  TkComm.window(self._value)
end
            

 
               # File tk/lib/tk/variable.rb, line 870
def window_element(*idxs)
  TkComm.window(_element_value(*idxs))
end
            

 
               # File tk/lib/tk/variable.rb, line 1274
def zero?
  numeric.zero?
end
            

 
               # File tk/lib/tk/variable.rb, line 1188
def |(other)
  if other.kind_of?(Array)
    self.to_a | other.to_a
  else
    self.to_i | other.to_i
  end
end
            

 
               # File tk/lib/tk/variable.rb, line 511
def _element_value(*idxs)
  index = idxs.collect{|idx| _get_eval_string(idx, true)}.join(',')
  begin
    _fromUTF8(INTERP._get_global_var2(@id, index))
  rescue => e
    case @def_default
    when :proc
      @default_val.call(self, *idxs)
    when :val
      @default_val
    else
      fail e
    end
  end
  #_fromUTF8(INTERP._get_global_var2(@id, index))
  #_fromUTF8(INTERP._get_global_var2(@id, _toUTF8(_get_eval_string(index))))
  #_fromUTF8(INTERP._get_global_var2(@id, _get_eval_string(index, true)))
end
            

 
               # File tk/lib/tk/variable.rb, line 468
def _value
  #if INTERP._eval("global #{@id}; array exist #{@id}") == '1'
  INTERP._invoke_without_enc('global', @id)
  # if INTERP._invoke('array', 'exist', @id) == '1'
  if TkComm.bool(INTERP._invoke('array', 'exist', @id))
    #Hash[*tk_split_simplelist(INTERP._eval("global #{@id}; array get #{@id}"))]
    Hash[*tk_split_simplelist(INTERP._invoke('array', 'get', @id))]
  else
    _fromUTF8(INTERP._get_global_var(@id))
  end
end