#!/usr/bin/python # Authors: # Rob Crittenden # # Copyright (C) 2011 Red Hat # see file 'COPYING' for use and warranty information # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # Test the API against a known-good API to ensure that changes aren't made # lightly. import sys import os import re from ipalib import * from ipalib.text import Gettext API_FILE='API.txt' API_FILE_DIFFERENCE = 1 API_NEW_COMMAND = 2 API_NO_FILE = 4 def parse_options(): from optparse import OptionParser parser = OptionParser() parser.add_option("--validate", dest="validate", action="store_true", default=False, help="Validate the API vs the stored API") options, args = parser.parse_args() return options, args def strip_doc(line): """ Remove the doc= part from the repr() of a Parameter. """ # this pattern allows up to 2 nested parentheses in doc part newline = re.sub(r', doc=([^(,]+)(\([^()]*(\([^()]+\)[^()]*)?\))?', '', line) return newline def make_api(): """ Write a new API file from the current tree. """ fd = open(API_FILE, 'w') for cmd in api.Command(): fd.write('command: %s\n' % cmd.name) fd.write('args: %d,%d,%d\n' % (len(cmd.args), len(cmd.options), len(cmd.output))) for a in cmd.args(): fd.write('arg: %s\n' % strip_doc(repr(a))) for o in cmd.options(): fd.write('option: %s\n' % strip_doc(repr(o))) for o in cmd.output(): fd.write('output: %s\n' % strip_doc(repr(o))) fd.close() return 0 def find_name(line): """ Break apart a Param line and pull out the name. It would be nice if we could just eval() the line but we wouldn't have defined any validators or normalizers it may be using. """ m = re.match('^[a-zA-Z0-9]+\(\'([a-z][_a-z0-9?\*\+]*)\'.*', line) if m: name = m.group(1) else: print "Couldn't find name in: %s" % line name = '' return name def _finalize_command_validation(cmd, found_args, expected_args, found_options, expected_options, found_output, expected_output): passed = True # Check the args of the previous command. if len(found_args) != expected_args: print 'Argument count in %s of %d doesn\'t match expected: %d' % ( cmd.name, len(found_args), expected_args) passed = False if len(found_options) != expected_options: print 'Options count in %s of %d doesn\'t match expected: %d' % ( cmd.name, len(found_options), expected_options) passed = False if len(found_output) != expected_output: print 'Output count in %s of %d doesn\'t match expected: %d' % ( cmd.name, len(found_output), expected_output) passed = False # Check if there is not a new arg/opt/output in previous command for a in cmd.args(): if a.param_spec not in found_args: print 'Argument %s of command %s in ipalib, not in API file:\n%s' % ( a.param_spec, cmd.name, strip_doc(repr(a))) passed = False for o in cmd.options(): if o.param_spec not in found_options: print 'Option %s of command %s in ipalib, not in API file:\n%s' % ( o.param_spec, cmd.name, strip_doc(repr(o))) passed = False for o in cmd.output(): if o.name not in found_output: print 'Output %s of command %s in ipalib, not in API file:\n%s' % ( o.name, cmd.name, strip_doc(repr(o))) passed = False return passed def validate_api(): """ Compare the API in the file to the one in ipalib. Return a bitwise return code to identify the types of errors found, if any. """ fd = open(API_FILE, 'r') lines = fd.readlines() fd.close() rval = 0 expected_args = 0 expected_options = 0 expected_output = 0 found_args = [] found_options = [] found_output = [] # First run through the file and compare it to the API existing_cmds = [] cmd = None for line in lines: line = line.strip() if line.startswith('command:'): if cmd: if not _finalize_command_validation(cmd, found_args, expected_args, found_options, expected_options, found_output, expected_output): rval |= API_FILE_DIFFERENCE (arg, name) = line.split(': ', 1) if name not in api.Command: print "Command %s in API file, not in ipalib" % name rval |= API_FILE_DIFFERENCE cmd = None else: existing_cmds.append(name) cmd = api.Command[name] found_args = [] found_options = [] found_output = [] if line.startswith('args:') and cmd: line = line.replace('args: ', '') (expected_args, expected_options, expected_output) = line.split(',') expected_args = int(expected_args) expected_options = int(expected_options) expected_output = int(expected_output) if line.startswith('arg:') and cmd: line = line.replace('arg: ', '') found = False arg = find_name(line) for a in cmd.args(): if strip_doc(repr(a)) == line: found = True else: if a.name == arg: found = True print 'Arg in %s doesn\'t match.\nGot %s\nExpected %s' % ( name, strip_doc(repr(a)), line) rval |= API_FILE_DIFFERENCE if found: found_args.append(arg) else: arg = find_name(line) print "Argument '%s' in command '%s' in API file not found" % (arg, name) rval |= API_FILE_DIFFERENCE if line.startswith('option:') and cmd: line = line.replace('option: ', '') found = False option = find_name(line) for o in cmd.options(): if strip_doc(repr(o)) == line: found = True else: if o.name == option: found = True print 'Option in %s doesn\'t match. Got %s Expected %s' % (name, o, line) rval |= API_FILE_DIFFERENCE if found: found_options.append(option) else: option = find_name(line) print "Option '%s' in command '%s' in API file not found" % (option, name) rval |= API_FILE_DIFFERENCE if line.startswith('output:') and cmd: line = line.replace('output: ', '') found = False output = find_name(line) for o in cmd.output(): if strip_doc(repr(o)) == line: found = True else: if o.name == output: found = True print 'Output in %s doesn\'t match. Got %s Expected %s' % (name, o, line) rval |= API_FILE_DIFFERENCE if found: found_output.append(output) else: output = find_name(line) print "Option '%s' in command '%s' in API file not found" % (output, name) rval |= API_FILE_DIFFERENCE if cmd: if not _finalize_command_validation(cmd, found_args, expected_args, found_options, expected_options, found_output, expected_output): rval |= API_FILE_DIFFERENCE # Now look for new commands not in the current API for cmd in api.Command(): if cmd.name not in existing_cmds: print "Command %s in ipalib, not in API" % cmd.name rval |= API_NEW_COMMAND return rval def main(): options, args = parse_options() cfg = dict( context='cli', in_server=False, debug=False, verbose=0, validate_api=True, enable_ra=True, mode='developer', ) api.bootstrap(**cfg) api.finalize() if options.validate: if not os.path.exists(API_FILE): print 'No %s to validate' % API_FILE rval = API_NO_FILE else: rval = validate_api() else: print "Writing API to API.txt" rval = make_api() if rval & API_FILE_DIFFERENCE: print '' print 'There are one or more changes to the API.\nEither undo the API changes or update API.txt and increment the major version in VERSION.' if rval & API_NEW_COMMAND: print '' print 'There are one or more new commands defined.\nUpdate API.txt and increment the minor version in VERSION.' return rval sys.exit(main()) /a> 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 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#
#		tk.rb - Tk interface module using tcltklib
#			$Date$
#			by Yukihiro Matsumoto <matz@netlab.jp>

# use Shigehiro's tcltklib
require "tcltklib"
require "tkutil"

module TkComm
  WidgetClassNames = {}

  None = Object.new
  def None.to_s
    'None'
  end

  Tk_CMDTBL = {}
  Tk_WINDOWS = {}

  def error_at
    frames = caller()
    frames.delete_if do |c|
      c =~ %r!/tk(|core|thcore|canvas|text|entry|scrollbox)\.rb:\d+!
    end
    frames
  end
  private :error_at

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

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

    ruby_class = WidgetClassNames[tk_class]
    gen_class_name = ruby_class.name + 'GeneratedOnTk'
    unless Object.const_defined? gen_class_name
      eval "class #{gen_class_name}<#{ruby_class.name}
              def initialize(path)
                @path=path
                Tk_WINDOWS[@path] = self
              end
            end"
    end
    eval "#{gen_class_name}.new('#{path}')"
  end

  def tk_tcl2ruby(val)
    if val =~ /^rb_out (c\d+)/
      return Tk_CMDTBL[$1]
    end
    if val.include? ?\s
      return val.split.collect{|v| tk_tcl2ruby(v)}
    end
    case val
    when /^@font/
      TkFont.get_obj(val)
    when /^-?\d+$/
      val.to_i
    when /^\./
      Tk_WINDOWS[val] ? Tk_WINDOWS[val] : _genobj_for_tkwidget(val)
    when / /
      val.split.collect{|elt|
	tk_tcl2ruby(elt)
      }
    when /^-?\d+\.\d*$/
      val.to_f
    else
      val
    end
  end

  def tk_split_list(str)
    return [] if str == ""
    idx = str.index('{')
    while idx and idx > 0 and str[idx-1] == ?\\
      idx = str.index('{', idx+1)
    end
    return tk_tcl2ruby(str) unless idx

    list = tk_tcl2ruby(str[0,idx])
    list = [] if list == ""
    str = str[idx+1..-1]
    i = -1
    brace = 1
    str.each_byte {|c|
      i += 1
      brace += 1 if c == ?{
      brace -= 1 if c == ?}
      break if brace == 0
    }
    if str[0, i] == ' '
      list.push ' '
    else
      list.push tk_split_list(str[0, i])
    end
    list += tk_split_list(str[i+1..-1])
    list
  end

  def tk_split_simplelist(str)
    return [] if str == ""
    idx = str.index('{')
    while idx and idx > 0 and str[idx-1] == ?\\
      idx = str.index('{', idx+1)
    end
    return str.split unless idx

    list = str[0,idx].split
    str = str[idx+1..-1]
    i = -1
    brace = 1
    str.each_byte {|c|
      i += 1
      brace += 1 if c == ?{
      brace -= 1 if c == ?}
      break if brace == 0
    }
    if i == 0
      list.push ''
    elsif str[0, i] == ' '
      list.push ' '
    else
      list.push str[0..i-1]
    end
    list += tk_split_simplelist(str[i+1..-1])
    list
  end
  private :tk_tcl2ruby, :tk_split_list, :tk_split_simplelist

  def _symbolkey2str(keys)
    h = {}
    keys.each{|key,value| h[key.to_s] = value}
    h
  end
  private :_symbolkey2str

  def hash_kv(keys)
    conf = []
    if keys and keys != None
      for k, v in keys
	 conf.push("-#{k}")
	 conf.push(v)
      end
    end
    conf
  end
  private :hash_kv

  def array2tk_list(ary)
    ary.collect{|e|
      if e.kind_of? Array
	"{#{array2tk_list(e)}}"
      elsif e.kind_of? Hash
	"{#{e.to_a.collect{|ee| array2tk_list(ee)}.join(' ')}}"
      else
	s = _get_eval_string(e)
	(s.index(/\s/))? "{#{s}}": s
      end
    }.join(" ")
  end
  private :array2tk_list

  def bool(val)
    case val
    when "1", 1, 'yes', 'true'
      TRUE
    else
      FALSE
    end
  end
  def number(val)
    case val
    when /^-?\d+$/
      val.to_i
    when /^-?\d+\.\d*$/
      val.to_f
    else
      val
    end
  end
  def string(val)
    if val == "{}"
      ''
    elsif val[0] == ?{
      val[1..-2]
    else
      val
    end
  end
  def list(val)
    tk_split_list(val).to_a
  end
  def window(val)
    Tk_WINDOWS[val]
  end
  def procedure(val)
    if val =~ /^rb_out (c\d+)/
      Tk_CMDTBL[$1]
    else
      nil
    end
  end
  private :bool, :number, :string, :list, :window, :procedure

  def _get_eval_string(str)
    return nil if str == None
    if str.kind_of?(String)
      # do nothing
    elsif str.kind_of?(Symbol)
      str = str.id2name
    elsif str.kind_of?(Hash)
      str = hash_kv(str).join(" ")
    elsif str.kind_of?(Array)
      str = array2tk_list(str)
    elsif str.kind_of?(Proc)
      str = install_cmd(str)
    elsif str == nil
      str = ""
    elsif str == false
      str = "0"
    elsif str == true
      str = "1"
    elsif (str.respond_to?(:to_eval))
      str = str.to_eval()
    else
      str = str.to_s()
    end
    return str
  end
  private :_get_eval_string

  def ruby2tcl(v)
    if v.kind_of?(Hash)
      v = hash_kv(v)
      v.flatten!
      v.collect{|e|ruby2tcl(e)}
    else
      _get_eval_string(v)
    end
  end
  private :ruby2tcl

  Tk_IDs = [0, 0]		# [0]-cmdid, [1]-winid
  def _curr_cmd_id
    id = format("c%.4d", Tk_IDs[0])
  end
  def _next_cmd_id
    id = _curr_cmd_id
    Tk_IDs[0] += 1
    id
  end
  def install_cmd(cmd)
    return '' if cmd == ''
    id = _next_cmd_id
    Tk_CMDTBL[id] = cmd
    @cmdtbl = [] unless @cmdtbl
    @cmdtbl.push id
    return format("rb_out %s", id);
  end
  def uninstall_cmd(id)
    id = $1 if /rb_out (c\d+)/ =~ id
    Tk_CMDTBL.delete(id)
  end
  private :install_cmd, :uninstall_cmd

  def install_win(ppath,name=nil)
    if !name or name == ''
      name = format("w%.4d", Tk_IDs[1])
      Tk_IDs[1] += 1
    end
    if !ppath or ppath == "."
      @path = format(".%s", name);
    else
      @path = format("%s.%s", ppath, name)
    end
    Tk_WINDOWS[@path] = self
  end

  def uninstall_win()
    Tk_WINDOWS.delete(@path)
  end

  class Event
    def initialize(seq,a,b,c,d,f,h,k,m,o,p,s,t,w,x,y,
	           aa,bb,dd,ee,kk,nn,rr,ss,tt,ww,xx,yy)
      @serial = seq
      @above = a
      @num = b
      @count = c
      @detail = d
      @focus = (f == 1)
      @height = h
      @keycode = k
      @mode = m
      @override = (o == 1)
      @place = p
      @state = s
      @time = t
      @width = w
      @x = x
      @y = y
      @char = aa
      @borderwidth = bb
      @wheel_delta = dd
      @send_event = (ee == 1)
      @keysym = kk
      @keysym_num = nn
      @rootwin_id = rr
      @subwindow = ss
      @type = tt
      @widget = ww
      @x_root = xx
      @y_root = yy
    end
    attr :serial
    attr :above
    attr :num
    attr :count
    attr :detail
    attr :focus
    attr :height
    attr :keycode
    attr :mode
    attr :override
    attr :place
    attr :state
    attr :time
    attr :width
    attr :x
    attr :y
    attr :char
    attr :borderwidth
    attr :wheel_delta
    attr :send_event
    attr :keysym
    attr :keysym_num
    attr :rootwin_id
    attr :subwindow
    attr :type
    attr :widget
    attr :x_root
    attr :y_root
  end

  def install_bind(cmd, args=nil)
    if args
      id = install_cmd(proc{|*arg|
	TkUtil.eval_cmd cmd, *arg
      })
      id + " " + args
    else
      id = install_cmd(proc{|arg|
	TkUtil.eval_cmd cmd, Event.new(*arg)
      })
      id + ' %# %a %b %c %d %f %h %k %m %o %p %s %t %w %x %y' + 
	   ' %A %B %D %E %K %N %R %S %T %W %X %Y'
    end
  end

  def tk_event_sequence(context)
    if context.kind_of? TkVirtualEvent
      context = context.path
    end
    if context.kind_of? Array
      context = context.collect{|ev|
	if ev.kind_of? TkVirtualEvent
	  ev.path
	else
	  ev
	end
      }.join("><")
    end
    if /,/ =~ context
      context = context.split(/\s*,\s*/).join("><")
    else
      context
    end
  end

  def _bind_core(mode, what, context, cmd, args=nil)
    id = install_bind(cmd, args) if cmd
    begin
      tk_call(*(what + ["<#{tk_event_sequence(context)}>", mode + id]))
    rescue
      uninstall_cmd(id) if cmd
      fail
    end
  end

  def _bind(what, context, cmd, args=nil)
    _bind_core('', what, context, cmd, args)
  end

  def _bind_append(what, context, cmd, args=nil)
    _bind_core('+', what, context, cmd, args)
  end

  def _bind_remove(what, context)
    tk_call(*(what + ["<#{tk_event_sequence(context)}>", '']))
  end

  def _bindinfo(what, context=nil)
    if context
      tk_call(*what+["<#{tk_event_sequence(context)}>"]).collect {|cmdline|
	if cmdline =~ /^rb_out (c\d+)\s+(.*)$/
	  [Tk_CMDTBL[$1], $2]
	else
	  cmdline
	end
      }
    else
      tk_split_simplelist(tk_call(*what)).collect!{|seq|
	l = seq.scan(/<*[^<>]+>*/).collect!{|subseq|
	  case (subseq)
	  when /^<<[^<>]+>>$/
	    TkVirtualEvent.getobj(subseq[1..-2])
	  when /^<[^<>]+>$/
	    subseq[1..-2]
	  else
	    subseq.split('')
	  end
	}.flatten
	(l.size == 1) ? l[0] : l
      }
    end
  end
  private :install_bind, :tk_event_sequence, 
          :_bind_core, :_bind, :_bind_append, :_bind_remove, :_bindinfo

  def bind(tagOrClass, context, cmd=Proc.new, args=nil)
    _bind(["bind", tagOrClass], context, cmd, args)
  end

  def bind_append(tagOrClass, context, cmd=Proc.new, args=nil)
    _bind_append(["bind", tagOrClass], context, cmd, args)
  end

  def bind_remove(tagOrClass, context)
    _bind_remove(['bind', tagOrClass], context)
  end

  def bindinfo(tagOrClass, context=nil)
    _bindinfo(['bind', tagOrClass], context)
  end

  def bind_all(context, cmd=Proc.new, args=nil)
    _bind(['bind', 'all'], context, cmd, args)
  end

  def bind_append_all(context, cmd=Proc.new, args=nil)
    _bind_append(['bind', 'all'], context, cmd, args)
  end

  def bindinfo_all(context=nil)
    _bindinfo(['bind', 'all'], context)
  end

  def pack(*args)
    TkPack.configure(*args)
  end

  def grid(*args)
    TkGrid.configure(*args)
  end

  def update(idle=nil)
    if idle
      tk_call 'update', 'idletasks'
    else
      tk_call 'update'
    end
  end

end

module TkCore
  include TkComm
  extend TkComm

  INTERP = TclTkIp.new

  INTERP._invoke("proc", "rb_out", "args", <<-'EOL')
    regsub -all {!} $args {\\!} args
    regsub -all "{" $args "\\{" args
    if {[set st [catch {ruby [format "TkCore.callback %%Q!%s!" $args]} ret]] != 0} {
	return -code $st $ret
    } {
	return $ret
    }
  EOL

  EventFlag = TclTkLib::EventFlag

  def callback_break
    fail TkCallbackBreak, "Tk callback returns 'break' status"
  end

  def callback_continue
    fail TkCallbackContinue, "Tk callback returns 'continue' status"
  end

  def after(ms, cmd=Proc.new)
    myid = _curr_cmd_id
    cmdid = install_cmd(cmd)
    tk_call("after",ms,cmdid)
#    return
#    if false #defined? Thread
#      Thread.start do
#	ms = Float(ms)/1000
#	ms = 10 if ms == 0
#	sleep ms/1000
#	cmd.call
#      end
#    else
#      cmdid = install_cmd(cmd)
#      tk_call("after",ms,cmdid)
#    end
  end

  def after_idle(cmd=Proc.new)
    myid = _curr_cmd_id
    cmdid = install_cmd(cmd)
    tk_call('after','idle',cmdid)
  end

  def clock_clicks(ms=nil)
    if ms
      tk_call('clock','clicks','-milliseconds').to_i
    else
      tk_call('clock','clicks').to_i
    end
  end

  def clock_format(clk, form=nil)
    if form
      tk_call('clock','format',clk,'-format',form).to_i
    else
      tk_call('clock','format',clk).to_i
    end
  end

  def clock_formatGMT(clk, form=nil)
    if form
      tk_call('clock','format',clk,'-format',form,'-gmt','1').to_i
    else
      tk_call('clock','format',clk,'-gmt','1').to_i
    end
  end

  def clock_scan(str, base=nil)
    if base
      tk_call('clock','scan',str,'-base',base).to_i
    else
      tk_call('clock','scan',str).to_i
    end
  end

  def clock_scanGMT(str, base=nil)
    if base
      tk_call('clock','scan',str,'-base',base,'-gmt','1').to_i
    else
      tk_call('clock','scan',str,'-gmt','1').to_i
    end
  end

  def clock_seconds
    tk_call('clock','seconds').to_i
  end

  def TkCore.callback(arg)
    arg = Array(tk_split_list(arg))
    _get_eval_string(TkUtil.eval_cmd(Tk_CMDTBL[arg.shift], *arg))
  end

  def scaling(scale=nil)
    if scale
      tk_call('tk', 'scaling', scale)
    else
      Float(number(tk_call('tk', 'scaling')))
    end
  end
  def scaling_displayof(win, scale=nil)
    if scale
      tk_call('tk', 'scaling', '-displayof', win, scale)
    else
      Float(number(tk_call('tk', '-displayof', win, 'scaling')))
    end
  end

  def appname(name=None)
    tk_call('tk', 'appname', name)
  end

  def appsend(interp, async, *args)
    if async
      tk_call('send', '-async', '--', interp, *args)
    else
      tk_call('send', '--', interp, *args)
    end
  end

  def rb_appsend(interp, async, *args)
    args = args.collect!{|c| _get_eval_string(c).gsub(/[][$"]/, '\\\\\&')}
    args.push(').to_s"')
    appsend(interp, async, 'ruby "(', *args)
  end

  def appsend_displayof(interp, win, async, *args)
    win = '.' if win == nil
    if async
      tk_call('send', '-async', '-displayof', win, '--', interp, *args)
    else
      tk_call('send', '-displayor', win, '--', interp, *args)
    end
  end

  def rb_appsend_displayof(interp, win, async, *args)
    args = args.collect!{|c| _get_eval_string(c).gsub(/[][$"]/, '\\\\\&')}
    args.push(').to_s"')
    appsend_displayof(interp, win, async, 'ruby "(', *args)
  end

  def info(*args)
    tk_call('info', *args)
  end

  def mainloop(check_root = true)
    TclTkLib.mainloop(check_root)
  end

  def mainloop_watchdog(check_root = true)
    TclTkLib.mainloop_watchdog(check_root)
  end

  def do_one_event(flag = 0)
    TclTkLib.do_one_event(flag)
  end

  def set_eventloop_tick(timer_tick)
    TclTkLib.set_eventloop_tick(timer_tick)
  end

  def get_eventloop_tick()
    TclTkLib.get_eventloop_tick
  end

  def set_eventloop_weight(loop_max, no_event_tick)
    TclTkLib.set_eventloop_weight(loop_max, no_event_tick)
  end

  def get_eventloop_weight()
    TclTkLib.get_eventloop_weight
  end

  def restart(app_name = nil, use = nil)
    tk_call('set', 'argv0', app_name) if app_name
    if use
      tk_call('set', 'argc', 2)
      tk_call('set', 'argv', "-use #{use}")
    end
    TkCore::INTERP.restart
    TkComm::Tk_CMDTBL.clear
    TkComm::Tk_WINDOWS.clear
    nil
  end

  def event_generate(window, context, keys=nil)
    window = window.path if window.kind_of? TkObject
    if keys
      tk_call('event', 'generate', window, 
	      "<#{tk_event_sequence(context)}>", *hash_kv(keys))
    else
      tk_call('event', 'generate', window, "<#{tk_event_sequence(context)}>")
    end
  end

  def messageBox(keys)
    tk_call 'tk_messageBox', *hash_kv(keys)
  end

  def getOpenFile(keys = nil)
    tk_call 'tk_getOpenFile', *hash_kv(keys)
  end

  def getSaveFile(keys = nil)
    tk_call 'tk_getSaveFile', *hash_kv(keys)
  end

  def chooseColor(keys = nil)
    tk_call 'tk_chooseColor', *hash_kv(keys)
  end

  def chooseDirectory(keys = nil)
    tk_call 'tk_chooseDirectory', *hash_kv(keys)
  end

  def tk_call(*args)
    puts args.inspect if $DEBUG
    args.collect! {|x|ruby2tcl(x)}
    args.compact!
    args.flatten!
    print "=> ", args.join(" ").inspect, "\n" if $DEBUG
    begin
      res = INTERP._invoke(*args)
    rescue NameError
      err = $!
      begin
        args.unshift "unknown"
        res = INTERP._invoke(*args)
      rescue
	fail unless /^invalid command/ =~ $!
	fail err
      end
    end
    if  INTERP._return_value() != 0
      fail RuntimeError, res, error_at
    end
    print "==> ", res.inspect, "\n" if $DEBUG
    return res
  end
end

module TkPackage
  include TkCore
  extend TkPackage

  def add_path(path)
    Tk::AUTO_PATH.value = Tk::AUTO_PATH.to_a << path
  end

  def forget(package)
    tk_call('package', 'forget', package)
    nil
  end

  def names
    tk_split_simplelist(tk_call('package', 'names'))
  end

  def provide(package, version=nil)
    if version
      tk_call('package', 'provide', package, version)
      nil
    else
      tk_call('package', 'provide', package)
    end
  end

  def present(package, version=None)
    tk_call('package', 'present', package, version)
  end

  def present_exact(package, version)
    tk_call('package', 'present', '-exact', package, version)
  end

  def require(package, version=None)
    tk_call('package', 'require', package, version)
  end

  def require_exact(package, version)
    tk_call('package', 'require', '-exact', package, version)
  end

  def versions(package)
    tk_split_simplelist(tk_call('package', 'versions', package))
  end

  def vcompare(version1, version2)
    Integer(tk_call('package', 'vcompare', version1, version2))
  end

  def vsatisfies(version1, version2)
    bool(tk_call('package', 'vsatisfies', version1, version2))
  end
end

module Tk
  include TkCore
  extend Tk

  TCL_VERSION = INTERP._invoke("info", "tclversion")
  TK_VERSION  = INTERP._invoke("set", "tk_version")

  TCL_PATCHLEVEL = INTERP._invoke("info", "patchlevel")
  TK_PATCHLEVEL  = INTERP._invoke("set", "tk_patchLevel")

  TCL_LIBRARY = INTERP._invoke("set", "tcl_library")
  TK_LIBRARY  = INTERP._invoke("set", "tk_library")
  LIBRARY     = INTERP._invoke("info", "library")

  PLATFORM = Hash[*tk_split_simplelist(INTERP._eval('array get tcl_platform'))]

  JAPANIZED_TK = (INTERP._invoke("info", "commands", "kanji") != "")

  def root
    TkRoot.new
  end

  def bell
    tk_call 'bell'
  end

  def Tk.focus(display=nil)
    if display == nil
      r = tk_call('focus')
    else
      r = tk_call('focus', '-displayof', display)
    end
    tk_tcl2ruby(r)
  end

  def Tk.focus_lastfor(win)
    tk_tcl2ruby(tk_call('focus', '-lastfor', win))
  end

  def Tk.strictMotif(bool=None)
    bool(tk_call('set', 'tk_strictMotif', bool))
  end

  def Tk.show_kinsoku(mode='both')
    begin
      if /^8\.*/ === TK_VERSION  && JAPANIZED_TK
        tk_split_simplelist(tk_call('kinsoku', 'show', mode))
      end
    rescue
    end
  end
  def Tk.add_kinsoku(chars, mode='both')
    begin
      if /^8\.*/ === TK_VERSION  && JAPANIZED_TK
        tk_split_simplelist(tk_call('kinsoku', 'add', mode, 
                                    *(chars.split(''))))
      else
        []
      end
    rescue
      []
    end
  end
  def Tk.delete_kinsoku(chars, mode='both')
    begin
      if /^8\.*/ === TK_VERSION  && JAPANIZED_TK
        tk_split_simplelist(tk_call('kinsoku', 'delete', mode, 
                            *(chars.split(''))))
      end
    rescue
    end
  end

  def Tk.toUTF8(str,encoding)
    INTERP._toUTF8(str,encoding)
  end
  
  def Tk.fromUTF8(str,encoding)
    INTERP._fromUTF8(str,encoding)
  end

  module Scrollable
    def xscrollcommand(cmd=Proc.new)
      configure_cmd 'xscrollcommand', cmd
    end
    def yscrollcommand(cmd=Proc.new)
      configure_cmd 'yscrollcommand', cmd
    end
    def xview(*index)
      v = tk_send('xview', *index)
      list(v) if index.size == 0
    end
    def yview(*index)
      v = tk_send('yview', *index)
      list(v) if index.size == 0
    end
    def xscrollbar(bar=nil)
      if bar
	@xscrollbar = bar
	@xscrollbar.orient 'horizontal'
	self.xscrollcommand {|arg| @xscrollbar.set(*arg)}
	@xscrollbar.command {|arg| self.xview(*arg)}
      end
      @xscrollbar
    end
    def yscrollbar(bar=nil)
      if bar
	@yscrollbar = bar
	@yscrollbar.orient 'vertical'
	self.yscrollcommand {|arg| @yscrollbar.set(*arg)}
	@yscrollbar.command {|arg| self.yview(*arg)}
      end
      @yscrollbar
    end
  end

  module Wm
    include TkComm
    def aspect(*args)
      w = tk_call('wm', 'aspect', path, *args)
      list(w) if args.length == 0
    end
    def client(name=None)
      tk_call 'wm', 'client', path, name
    end
    def colormapwindows(*args)
      list(tk_call('wm', 'colormapwindows', path, *args))
    end
    def wm_command(value=None)
      string(tk_call('wm', 'command', path, value))
    end
    def deiconify
      tk_call 'wm', 'deiconify', path
    end
    def focusmodel(*args)
      tk_call 'wm', 'focusmodel', path, *args
    end
    def frame
      tk_call('wm', 'frame', path)
    end
    def geometry(*args)
      tk_call('wm', 'geometry', path, *args)
    end
    def grid(*args)
      w = tk_call('wm', 'grid', path, *args)
      list(w) if args.size == 0
    end
    def group(*args)
      w = tk_call 'wm', 'group', path, *args
      window(w) if args.size == 0
    end
    def iconbitmap(*args)
      tk_call 'wm', 'iconbitmap', path, *args
    end
    def iconify
      tk_call 'wm', 'iconify', path
    end
    def iconmask(*args)
      tk_call 'wm', 'iconmask', path, *args
    end
    def iconname(*args)
      tk_call 'wm', 'iconname', path, *args
    end
    def iconposition(*args)
      w = tk_call('wm', 'iconposition', path, *args)
      list(w) if args.size == 0
    end
    def iconwindow(*args)
      w = tk_call('wm', 'iconwindow', path, *args)
      window(w) if args.size == 0
    end
    def maxsize(*args)
      w = tk_call('wm', 'maxsize', path, *args)
      list(w) if args.size == 0
    end
    def minsize(*args)
      w = tk_call('wm', 'minsize', path, *args)
      list(w) if args.size == 0
    end
    def overrideredirect(bool=None)
      if bool == None
	bool(tk_call('wm', 'overrideredirect', path))
      else
	tk_call 'wm', 'overrideredirect', path, bool
      end
    end
    def positionfrom(*args)
      tk_call 'wm', 'positionfrom', path, *args
    end
    def protocol(name=nil, cmd=nil)
      if cmd
	tk_call('wm', 'protocol', path, name, cmd)
      elsif name
	result = tk_call('wm', 'protocol', path, name)
	(result == "")? nil : tk_tcl2ruby(result)
      else
	tk_split_simplelist(tk_call('wm', 'protocol', path))
      end
    end
    def resizable(*args)
      w = tk_call('wm', 'resizable', path, *args)
      if args.length == 0
	list(w).collect{|e| bool(e)}
      end
    end
    def sizefrom(*args)
      tk_call('wm', 'sizefrom', path, *args)
    end
    def state(state=None)
      tk_call 'wm', 'state', path, state
    end
    def title(*args)
      tk_call 'wm', 'title', path, *args
    end
    def transient(*args)
      window(tk_call('wm', 'transient', path, *args))
    end
    def withdraw
      tk_call 'wm', 'withdraw', path
    end
  end
end

###########################################
#  convert kanji string to/from utf-8
###########################################
if /^8\.[1-9]/ =~ Tk::TCL_VERSION && !Tk::JAPANIZED_TK
  class TclTkIp
    # from tkencoding.rb by ttate@jaist.ac.jp
    alias __eval _eval
    alias __invoke _invoke
    private :__eval
    private :__invoke
    
    attr_accessor :encoding
    
    def _eval(cmd)
      if @encoding
	_fromUTF8(__eval(_toUTF8(cmd, @encoding)), @encoding)
      else
	__eval(cmd)
      end
    end
    
    def _invoke(*cmds)
      if @encoding
	cmds = cmds.collect{|cmd| _toUTF8(cmd, @encoding)}
	_fromUTF8(__invoke(*cmds), @encoding)
      else
	__invoke(*cmds)
	end
    end
  end

  module Tk
    def encoding=(name)
      INTERP.encoding = name
    end

    def encoding
      INTERP.encoding
    end

    def encoding_names
      tk_split_simplelist(tk_call('encoding', 'names'))
    end

    def encoding_system
      tk_call('encoding', 'system')
    end

    def encoding_system=(enc)
      tk_call('encoding', 'system', enc)
    end
  end

  # estimate encoding
  case $KCODE
  when /^e/i  # EUC
    Tk.encoding = 'euc-jp'
  when /^s/i  # SJIS
    Tk.encoding = 'shiftjis'
  when /^u/i  # UTF8
    Tk.encoding = 'utf-8'
  else        # NONE
    begin
      Tk.encoding = Tk.encoding_system
    rescue StandardError, NameError
      Tk.encoding = 'utf-8'
    end
  end

else
  # dummy methods
  module Tk
    def encoding=(name)
      nil
    end
    def encoding
      nil
    end
    def encoding_names
      nil
    end
    def encoding_system
      nil
    end
    def encoding_system=(enc)
      nil
    end
  end
end

module TkBindCore
  def bind(context, cmd=Proc.new, args=nil)
    Tk.bind(to_eval, context, cmd, args)
  end

  def bind_append(context, cmd=Proc.new, args=nil)
    Tk.bind_append(to_eval, context, cmd, args)
  end

  def bind_remove(context)
    Tk.bind_remove(to_eval, context)
  end

  def bindinfo(context=nil)
    Tk.bindinfo(to_eval, context)
  end
end

class TkBindTag
  include TkBindCore

  BTagID_TBL = {}
  Tk_BINDTAG_ID = ["btag00000"]

  def TkBindTag.id2obj(id)
    BTagID_TBL[id]? BTagID_TBL[id]: id
  end

  ALL = self.new
  ALL.instance_eval {
    @id = 'all'
    BTagID_TBL[@id] = self
  }

  def initialize(*args)
    @id = Tk_BINDTAG_ID[0]
    Tk_BINDTAG_ID[0] = Tk_BINDTAG_ID[0].succ
    BTagID_TBL[@id] = self
    bind(*args) if args != []
  end

  def to_eval
    @id
  end

  def inspect
    format "#<TkBindTag: %s>", @id
  end
end

class TkBindTagAll<TkBindTag
  def TkBindTagAll.new(*args)
    $stderr.puts "Warning: TkBindTagALL is obsolete. Use TkBindTag::ALL\n"

    TkBindTag::ALL.bind(*args) if args != []
    TkBindTag::ALL
  end
end

class TkVariable
  include Tk
  extend TkCore

  TkVar_CB_TBL = {}
  Tk_VARIABLE_ID = ["v00000"]

  INTERP._invoke("proc", "rb_var", "args", "ruby [format \"TkVariable.callback %%Q!%s!\" $args]")

  def TkVariable.callback(args)
    name1,name2,op = tk_split_list(args)
    if TkVar_CB_TBL[name1]
      _get_eval_string(TkVar_CB_TBL[name1].trace_callback(name2,op))
    else
      ''
    end
  end

  def initialize(val="")
    @id = Tk_VARIABLE_ID[0]
    Tk_VARIABLE_ID[0] = Tk_VARIABLE_ID[0].succ
    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(/[][$"]/, '\\\\\&') + '"'
      INTERP._eval(format('global %s; array set %s %s', @id, @id, s))
    elsif  val.kind_of?(Hash)
      s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
                   .gsub(/[][$"]/, '\\\\\&') + '"'
      INTERP._eval(format('global %s; array set %s %s', @id, @id, s))
    else
      s = '"' + _get_eval_string(val).gsub(/[][$"]/, '\\\\\&') + '"'
      INTERP._eval(format('global %s; set %s %s', @id, @id, s))
    end
  end

  def wait
    INTERP._eval("tkwait variable #{@id}")
  end

  def id
    @id
  end

  def value
    begin
      INTERP._eval(format('global %s; set %s', @id, @id))
    rescue
      if INTERP._eval(format('global %s; array exists %s', @id, @id)) != "1"
	fail
      else
	Hash[*tk_split_simplelist(INTERP._eval(format('global %s; array get %s', 
						      @id, @id)))]
      end
    end
  end

  def value=(val)
    begin
      s = '"' + _get_eval_string(val).gsub(/[][$"]/, '\\\\\&') + '"'
      INTERP._eval(format('global %s; set %s %s', @id, @id, s))
    rescue
      if INTERP._eval(format('global %s; array exists %s', @id, @id)) != "1"
	fail
      else
	if val == []
	  INTERP._eval(format('global %s; unset %s; set %s(0) 0; unset %s(0)', 
			      @id, @id, @id, @id))
	elsif val.kind_of?(Array)
	  a = []
	  val.each_with_index{|e,i| a.push(i); a.push(array2tk_list(e))}
	  s = '"' + a.join(" ").gsub(/[][$"]/, '\\\\\&') + '"'
	  INTERP._eval(format('global %s; unset %s; array set %s %s', 
			      @id, @id, @id, s))
	elsif  val.kind_of?(Hash)
	  s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
	                        .gsub(/[][$"]/, '\\\\\&') + '"'
	  INTERP._eval(format('global %s; unset %s; array set %s %s', 
			      @id, @id, @id, s))
	else
	  fail
	end
      end
    end
  end

  def [](index)
    INTERP._eval(format('global %s; set %s(%s)', 
			@id, @id, _get_eval_string(index)))
  end

  def []=(index,val)
    INTERP._eval(format('global %s; set %s(%s) %s', @id, @id, 
			_get_eval_string(index), _get_eval_string(val)))
  end

  def to_i
    number(value).to_i
  end

  def to_f
    number(value).to_f
  end

  def to_s
    string(value).to_s
  end

  def inspect
    format "#<TkVariable: %s>", @id
  end

  def ==(other)
    case other
    when TkVariable
      self.equal(self)
    when String
      self.to_s == other
    when Integer
      self.to_i == other
    when Float
      self.to_f == other
    when Array
      self.to_a == other
    else
      false
    end
  end

  def to_a
    list(value)
  end

  def to_eval
    @id
  end

  def unset(elem=nil)
    if elem
      INTERP._eval(format('global %s; unset %s(%s)', 
			  @id, @id, tk_tcl2ruby(elem)))
    else
      INTERP._eval(format('global %s; unset %s', @id, @id))
    end
  end
  alias remove unset

  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
      if @trace_elem[elem].kind_of? Array
	@trace_elem[elem].each{|m,e| e.call(self,elem,op) if m.index(op)}
      end
    end
  end

  def trace(opts, cmd)
    @trace_var = [] if @trace_var == nil
    opts = ['r','w','u'].find_all{|c| opts.index(c)}.join('')
    @trace_var.unshift([opts,cmd])
    if @trace_opts == nil
      TkVar_CB_TBL[@id] = self
      @trace_opts = opts
      Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
    else
      newopts = @trace_opts.dup
      opts.each_byte{|c| newopts += c.chr unless newopts.index(c)}
      if newopts != @trace_opts
	Tk.tk_call('trace', 'vdelete', @id, @trace_opts, 'rb_var')
	@trace_opts.replace(newopts)
	Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
      end
    end
  end

  def trace_element(elem, opts, cmd)
    @trace_elem = {} if @trace_elem == nil
    @trace_elem[elem] = [] if @trace_elem[elem] == nil
    opts = ['r','w','u'].find_all{|c| opts.index(c)}.join('')
    @trace_elem[elem].unshift([opts,cmd])
    if @trace_opts == nil
      TkVar_CB_TBL[@id] = self
      @trace_opts = opts
      Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
    else
      newopts = @trace_opts.dup
      opts.each_byte{|c| newopts += c.chr unless newopts.index(c)}
      if newopts != @trace_opts
	Tk.tk_call('trace', 'vdelete', @id, @trace_opts, 'rb_var')
	@trace_opts.replace(newopts)
	Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
      end
    end
  end

  def trace_vinfo
    return [] unless @trace_var
    @trace_var.dup
  end
  def trace_vinfo_for_element(elem)
    return [] unless @trace_elem
    return [] unless @trace_elem[elem]
    @trace_elem[elem].dup
  end

  def trace_vdelete(opts,cmd)
    return unless @trace_var.kind_of? Array
    opts = ['r','w','u'].find_all{|c| opts.index(c)}.join('')
    idx = -1
    newopts = ''
    @trace_var.each_with_index{|e,i| 
      if idx < 0 && e[0] == opts && e[1] == cmd
	idx = i
	next
      end
      e[0].each_byte{|c| newopts += c.chr unless newopts.index(c)}
    }
    if idx >= 0
      @trace_var.delete_at(idx) 
    else
      return
    end

    @trace_elem.each{|elem|
      @trace_elem[elem].each{|e|
	e[0].each_byte{|c| newopts += c.chr unless newopts.index(c)}
      }
    }

    newopts = ['r','w','u'].find_all{|c| newopts.index(c)}.join('')
    if newopts != @trace_opts
      Tk.tk_call('trace', 'vdelete', @id, @trace_opts, 'rb_var')
      @trace_opts.replace(newopts)
      if @trace_opts != ''
	Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
      end
    end
  end

  def trace_vdelete_for_element(elem,opts,cmd)
    return unless @trace_elem.kind_of? Hash
    return unless @trace_elem[elem].kind_of? Array
    opts = ['r','w','u'].find_all{|c| opts.index(c)}.join('')
    idx = -1
    @trace_elem[elem].each_with_index{|e,i| 
      if idx < 0 && e[0] == opts && e[1] == cmd
	idx = i
	next
      end
    }
    if idx >= 0
      @trace_elem[elem].delete_at(idx)
    else
      return
    end

    newopts = ''
    @trace_var.each{|e| 
      e[0].each_byte{|c| newopts += c.chr unless newopts.index(c)}
    }
    @trace_elem.each{|elem|
      @trace_elem[elem].each{|e|
	e[0].each_byte{|c| newopts += c.chr unless newopts.index(c)}
      }
    }

    newopts = ['r','w','u'].find_all{|c| newopts.index(c)}.join('')
    if newopts != @trace_opts
      Tk.tk_call('trace', 'vdelete', @id, @trace_opts, 'rb_var')
      @trace_opts.replace(newopts)
      if @trace_opts != ''
	Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
      end
    end
  end
end

class TkVarAccess<TkVariable
  def initialize(varname, val=nil)
    @id = varname
    if val
      s = '"' + _get_eval_string(val).gsub(/[][$"]/, '\\\\\&') + '"' #"
      INTERP._eval(format('global %s; set %s %s', @id, @id, s))
    end
  end
end

module Tk
  begin
    auto_path = INTERP._invoke('set', 'auto_path')
  rescue
    begin
      auto_path = INTERP._invoke('set', 'env(TCLLIBPATH)')
    rescue
      auto_path = Tk::LIBRARY
    end
  end
  AUTO_PATH = TkVarAccess.new('auto_path', auto_path)

  TCL_PACKAGE_PATH = TkVarAccess.new('tcl_pkgPath')
end

module TkSelection
  include Tk
  extend Tk
  def clear(win=Tk.root)
    tk_call 'selection', 'clear', win.path
  end
  def get(type=None)
    tk_call 'selection', 'get', type
  end
  def TkSelection.handle(win, func, type=None, format=None)
    tk_call 'selection', 'handle', win.path, func, type, format
  end
  def handle(func, type=None, format=None)
    TkSelection.handle self, func, type, format
  end
  def TkSelection.own(win=None, func=None)
    window(tk_call('selection', 'own', win, func))
  end
  def own(func=None)
    TkSelection.own self, func
  end

  module_function :clear, :get
end

module TkKinput
  include Tk
  extend Tk

  def TkKinput.start(window, style=None)
    tk_call 'kinput_start', window.path, style
  end
  def kinput_start(style=None)
    TkKinput.start(self, style)
  end

  def TkKinput.send_spot(window)
    tk_call 'kinput_send_spot', window.path
  end
  def kinput_send_spot
    TkKinput.send_spot(self)
  end

  def TkKinput.input_start(window, keys=nil)
    tk_call 'kanjiInput', 'start', window.path, *hash_kv(keys)
  end
  def kanji_input_start(keys=nil)
    TkKinput.input_start(self, keys)
  end

  def TkKinput.attribute_config(window, slot, value=None)
    if slot.kind_of? Hash
      tk_call 'kanjiInput', 'attribute', window.path, *hash_kv(slot)
    else
      tk_call 'kanjiInput', 'attribute', window.path, "-#{slot}", value
    end
  end
  def kinput_attribute_config(slot, value=None)
    TkKinput.attribute_config(self, slot, value)
  end

  def TkKinput.attribute_info(window, slot=nil)
    if slot
      conf = tk_split_list(tk_call('kanjiInput', 'attribute', 
				   window.path, "-#{slot}"))
      conf[0] = conf[0][1..-1]
      conf
    else
      tk_split_list(tk_call('kanjiInput', 'attribute', 
			    window.path)).collect{|conf|
	conf[0] = conf[0][1..-1]
	conf
      }
    end
  end
  def kinput_attribute_info(slot=nil)
    TkKinput.attribute_info(self, slot)
  end

  def TkKinput.input_end(window)
    tk_call 'kanjiInput', 'end', window.path
  end
  def kanji_input_end
    TkKinput.input_end(self)
  end
end

module TkXIM
  include Tk
  extend Tk

  def TkXIM.useinputmethods(window=nil, value=nil)
    if window
      if value
        tk_call 'tk', 'useinputmethods', '-displayof', window.path, value
      else
        tk_call 'tk', 'useinputmethods', '-displayof', window.path
      end
    else
      if value
        tk_call 'tk', 'useinputmethods', value
      else
        tk_call 'tk', 'useinputmethods'
      end
    end
  end

  def TkXIM.configure(window, slot, value=None)
    begin
      if /^8\.*/ === Tk::TK_VERSION  && JAPANIZED_TK
        if slot.kind_of? Hash
          tk_call 'imconfigure', window.path, *hash_kv(slot)
        else
          tk_call 'imconfigure', window.path, "-#{slot}", value
        end
      end
    rescue
    end
  end

  def TkXIM.configinfo(window, slot=nil)
    begin
      if /^8\.*/ === Tk::TK_VERSION  && JAPANIZED_TK
        if slot
          conf = tk_split_list(tk_call('imconfigure', window.path, "-#{slot}"))
          conf[0] = conf[0][1..-1]
          conf
        else
          tk_split_list(tk_call('imconfigure', window.path)).collect{|conf|
            conf[0] = conf[0][1..-1]
            conf
          }
        end
      else
        []
      end
    rescue
      []
    end
  end

  def useinputmethods(value=nil)
    TkXIM.useinputmethods(self, value)
  end

  def imconfigure(window, slot, value=None)
    TkXIM.configinfo(window, slot, value)
  end

  def imconfiginfo(slot=nil)
    TkXIM.configinfo(window, slot)
  end
end

module TkWinfo
  include Tk
  extend Tk
  def TkWinfo.atom(name)
    number(tk_call('winfo', 'atom', name))
  end
  def winfo_atom(name)
    TkWinfo.atom name
  end
  def TkWinfo.atomname(id)
    tk_call 'winfo', 'atomname', id
  end
  def winfo_atomname(id)
    TkWinfo.atomname id
  end
  def TkWinfo.cells(window)
    number(tk_call('winfo', 'cells', window.path))
  end
  def winfo_cells
    TkWinfo.cells self
  end
  def TkWinfo.children(window)
    c = tk_call('winfo', 'children', window.path)
    list(c)
  end
  def winfo_children
    TkWinfo.children self
  end
  def TkWinfo.classname(window)
    tk_call 'winfo', 'class', window.path
  end
  def winfo_classname
    TkWinfo.classname self
  end
  def TkWinfo.colormapfull(window)
     bool(tk_call('winfo', 'colormapfull', window.path))
  end
  def winfo_colormapfull
    TkWinfo.colormapfull self
  end
  def TkWinfo.containing(rootX, rootY)
    path = tk_call('winfo', 'containing', rootX, rootY)
    window(path)
  end
  def winfo_containing(x, y)
    TkWinfo.containing x, y
  end
  def TkWinfo.depth(window)
    number(tk_call('winfo', 'depth', window.path))
  end
  def winfo_depth
    TkWinfo.depth self
  end
  def TkWinfo.exist?(window)
    bool(tk_call('winfo', 'exists', window.path))
  end
  def winfo_exist?
    TkWinfo.exist? self
  end
  def TkWinfo.fpixels(window, number)
    number(tk_call('winfo', 'fpixels', window.path, number))
  end
  def winfo_fpixels(number)
    TkWinfo.fpixels self, number
  end
  def TkWinfo.geometry(window)
    tk_call('winfo', 'geometry', window.path)
  end
  def winfo_geometry
    TkWinfo.geometry self
  end
  def TkWinfo.height(window)
    number(tk_call('winfo', 'height', window.path))
  end
  def winfo_height
    TkWinfo.height self
  end
  def TkWinfo.id(window)
    tk_call('winfo', 'id', window.path)
  end
  def winfo_id
    TkWinfo.id self
  end
  def TkWinfo.interps(window=nil)
    if window
      tk_split_simplelist(tk_call('winfo', 'interps',
				  '-displayof', window.path))
    else
      tk_split_simplelist(tk_call('winfo', 'interps'))
    end
  end
  def winfo_interps
    TkWinfo.interps self
  end
  def TkWinfo.mapped?(window)
    bool(tk_call('winfo', 'ismapped', window.path))
  end
  def winfo_mapped?
    TkWinfo.mapped? self
  end
  def TkWinfo.manager(window)
    tk_call('winfo', 'manager', window.path)
  end
  def winfo_manager
    TkWinfo.manager self
  end
  def TkWinfo.appname(window)
    tk_call('winfo', 'name', window.path)
  end
  def winfo_appname
    TkWinfo.appname self
  end
  def TkWinfo.parent(window)
    window(tk_call('winfo', 'parent', window.path))
  end
  def winfo_parent
    TkWinfo.parent self
  end
  def TkWinfo.widget(id)
    window(tk_call('winfo', 'pathname', id))
  end
  def winfo_widget(id)
    TkWinfo.widget id
  end
  def TkWinfo.pixels(window, number)
    number(tk_call('winfo', 'pixels', window.path, number))
  end
  def winfo_pixels(number)
    TkWinfo.pixels self, number
  end
  def TkWinfo.reqheight(window)
    number(tk_call('winfo', 'reqheight', window.path))
  end
  def winfo_reqheight
    TkWinfo.reqheight self
  end
  def TkWinfo.reqwidth(window)
    number(tk_call('winfo', 'reqwidth', window.path))
  end
  def winfo_reqwidth
    TkWinfo.reqwidth self
  end
  def TkWinfo.rgb(window, color)
    list(tk_call('winfo', 'rgb', window.path, color))
  end
  def winfo_rgb(color)
    TkWinfo.rgb self, color
  end
  def TkWinfo.rootx(window)
    number(tk_call('winfo', 'rootx', window.path))
  end
  def winfo_rootx
    TkWinfo.rootx self
  end
  def TkWinfo.rooty(window)
    number(tk_call('winfo', 'rooty', window.path))
  end
  def winfo_rooty
    TkWinfo.rooty self
  end
  def TkWinfo.screen(window)
    tk_call 'winfo', 'screen', window.path
  end
  def winfo_screen
    TkWinfo.screen self
  end
  def TkWinfo.screencells(window)
    number(tk_call('winfo', 'screencells', window.path))
  end
  def winfo_screencells
    TkWinfo.screencells self
  end
  def TkWinfo.screendepth(window)
    number(tk_call('winfo', 'screendepth', window.path))
  end
  def winfo_screendepth
    TkWinfo.screendepth self
  end
  def TkWinfo.screenheight (window)
    number(tk_call('winfo', 'screenheight', window.path))
  end
  def winfo_screenheight
    TkWinfo.screenheight self
  end
  def TkWinfo.screenmmheight(window)
    number(tk_call('winfo', 'screenmmheight', window.path))
  end
  def winfo_screenmmheight
    TkWinfo.screenmmheight self
  end
  def TkWinfo.screenmmwidth(window)
    number(tk_call('winfo', 'screenmmwidth', window.path))
  end
  def winfo_screenmmwidth
    TkWinfo.screenmmwidth self
  end
  def TkWinfo.screenvisual(window)
    tk_call 'winfo', 'screenvisual', window.path
  end
  def winfo_screenvisual
    TkWinfo.screenvisual self
  end
  def TkWinfo.screenwidth(window)
    number(tk_call('winfo', 'screenwidth', window.path))
  end
  def winfo_screenwidth
    TkWinfo.screenwidth self
  end
  def TkWinfo.server(window)
    tk_call 'winfo', 'server', window.path
  end
  def winfo_server
    TkWinfo.server self
  end
  def TkWinfo.toplevel(window)
    window(tk_call('winfo', 'toplevel', window.path))
  end
  def winfo_toplevel
    TkWinfo.toplevel self
  end
  def TkWinfo.visual(window)
    tk_call 'winfo', 'visual', window.path
  end
  def winfo_visual
    TkWinfo.visual self
  end
  def TkWinfo.visualid(window)
    tk_call 'winfo', 'visualid', window.path
  end
  def winfo_visualid
    TkWinfo.visualid self
  end
  def TkWinfo.visualsavailable(window, includeids=false)
    if includeids
      v = tk_call('winfo', 'visualsavailable', window.path, "includeids")
    else
      v = tk_call('winfo', 'visualsavailable', window.path)
    end
    list(v)
  end
  def winfo_visualsavailable(includeids=false)
    TkWinfo.visualsavailable self, includeids
  end
  def TkWinfo.vrootheight(window)
    number(tk_call('winfo', 'vrootheight', window.path))
  end
  def winfo_vrootheight
    TkWinfo.vrootheight self
  end
  def TkWinfo.vrootwidth(window)
    number(tk_call('winfo', 'vrootwidth', window.path))
  end
  def winfo_vrootwidth
    TkWinfo.vrootwidth self
  end
  def TkWinfo.vrootx(window)
    number(tk_call('winfo', 'vrootx', window.path))
  end
  def winfo_vrootx
    TkWinfo.vrootx self
  end
  def TkWinfo.vrooty(window)
    number(tk_call('winfo', 'vrooty', window.path))
  end
  def winfo_vrooty
    TkWinfo.vrooty self
  end
  def TkWinfo.width(window)
    number(tk_call('winfo', 'width', window.path))
  end
  def winfo_width
    TkWinfo.width self
  end
  def TkWinfo.x(window)
    number(tk_call('winfo', 'x', window.path))
  end
  def winfo_x
    TkWinfo.x self
  end
  def TkWinfo.y(window)
    number(tk_call('winfo', 'y', window.path))
  end
  def winfo_y
    TkWinfo.y self
  end
  def TkWinfo.viewable(window)
    bool(tk_call('winfo', 'viewable', window.path))
  end
  def winfo_viewable
    TkWinfo.viewable self
  end
  def TkWinfo.pointerx(window)
    number(tk_call('winfo', 'pointerx', window.path))
  end
  def winfo_pointerx
    TkWinfo.pointerx self
  end
  def TkWinfo.pointery(window)
    number(tk_call('winfo', 'pointery', window.path))
  end
  def winfo_pointery
    TkWinfo.pointery self
  end
  def TkWinfo.pointerxy(window)
    list(tk_call('winfo', 'pointerxy', window.path))
  end
  def winfo_pointerxy
    TkWinfo.pointerxy self
  end
end

module TkPack
  include Tk
  extend Tk
  def configure(win, *args)
    if args[-1].kind_of?(Hash)
      keys = args.pop
    end
    wins = [win.epath]
    for i in args
      wins.push i.epath
    end
    tk_call "pack", 'configure', *(wins+hash_kv(keys))
  end

  def forget(*args)
    tk_call 'pack', 'forget' *args
  end

  def info(slave)
    ilist = list(tk_call('pack', 'info', slave.epath))
    info = {}
    while key = ilist.shift
      info[key[1..-1]] = ilist.shift
    end
    return info
  end

  def propagate(master, bool=None)
    if bool == None
      bool(tk_call('pack', 'propagate', master.epath))
    else
      tk_call('pack', 'propagate', master.epath, bool)
    end
  end

  def slaves(master)
    list(tk_call('pack', 'slaves', master.epath))
  end

  module_function :configure, :forget, :info, :propagate, :slaves
end

module TkGrid
  include Tk
  extend Tk

  def bbox(*args)
    list(tk_call('grid', 'bbox', *args))
  end

  def configure(widget, *args)
    if args[-1].kind_of?(Hash)
      keys = args.pop
    end
    wins = [widget.epath]
    for i in args
      wins.push i.epath
    end
    tk_call "grid", 'configure', *(wins+hash_kv(keys))
  end

  def columnconfigure(master, index, args)
    tk_call "grid", 'columnconfigure', master, index, *hash_kv(args)
  end

  def rowconfigure(master, index, args)
    tk_call "grid", 'rowconfigure', master, index, *hash_kv(args)
  end

  def columnconfiginfo(master, index, slot=nil)
    if slot
      tk_call 'grid', 'columnconfigure', master, index, "-#{slot}"
    else
      ilist = list(tk_call('grid', 'columnconfigure', master, index))
      info = {}
      while key = ilist.shift
	info[key[1..-1]] = ilist.shift
      end
      info
    end
  end

  def rowconfiginfo(master, index, slot=nil)
    if slot
      tk_call 'grid', 'rowconfigure', master, index, "-#{slot}"
    else
      ilist = list(tk_call('grid', 'rowconfigure', master, index))
      info = {}
      while key = ilist.shift
	info[key[1..-1]] = ilist.shift
      end
      info
    end
  end

  def add(widget, *args)
    configure(widget, *args)
  end

  def forget(*args)
    tk_call 'grid', 'forget', *args
  end

  def info(slave)
    list(tk_call('grid', 'info', slave))
  end

  def location(master, x, y)
    list(tk_call('grid', 'location', master, x, y))
  end

  def propagate(master, bool=None)
    if bool == None
      bool(tk_call('grid', 'propagate', master.epath))
    else
      tk_call('grid', 'propagate', master.epath, bool)
    end
  end

  def remove(*args)
    tk_call 'grid', 'remove', *args
  end

  def size(master)
    tk_call 'grid', 'size', master
  end

  def slaves(master, args)
    list(tk_call('grid', 'slaves', master, *hash_kv(args)))
  end

  module_function :bbox, :forget, :propagate, :info
  module_function :remove, :size, :slaves, :location
  module_function :configure, :columnconfigure, :rowconfigure
  module_function :columnconfiginfo, :rowconfiginfo
end

module TkPlace
  include Tk
  extend Tk

  def configure(win, slot, value=None)
    if slot.kind_of? Hash
      tk_call 'place', 'configure', win.epath, *hash_kv(slot)
    else
      tk_call 'place', 'configure', win.epath, "-#{slot}", value
    end
  end

  def configinfo(win, slot = nil)
    # for >= Tk8.4a2 ?
    if slot
      conf = tk_split_list(tk_call('place', 'configure', 
				   win.epath, "-#{slot}") )
      conf[0] = conf[0][1..-1]
      conf
    else
      tk_split_simplelist(tk_call('place', 'configure', 
				  win.epath)).collect{|conflist|
	conf = tk_split_simplelist(conflist)
	conf[0] = conf[0][1..-1]
	conf
      }
    end
  end

  def forget(win)
    tk_call 'place', 'forget', win
  end

  def info(win)
    ilist = list(tk_call('place', 'info', win.epath))
    info = {}
    while key = ilist.shift
      info[key[1..-1]] = ilist.shift
    end
    return info
  end

  def slaves(master)
    list(tk_call('place', 'slaves', master.epath))
  end

  module_function :configure, :configinfo, :forget, :info, :slaves
end

module TkOption
  include Tk
  extend Tk
  def add pat, value, pri=None
    tk_call 'option', 'add', pat, value, pri
  end
  def clear
    tk_call 'option', 'clear'
  end
  def get win, name, klass
    tk_call('option', 'get', win ,name, klass).taint
  end
  def readfile file, pri=None
    tk_call 'option', 'readfile', file, pri
  end
  module_function :add, :clear, :get, :readfile

  # support procs on the resource database
  @@resource_proc_class = Class.new
  class << @@resource_proc_class
    private :new

    CARRIER    = '.'.freeze
    METHOD_TBL = {}
    ADD_METHOD = false
    SAFE_MODE  = 4

    def __check_proc_string__(str)
      # If you want to check the proc_string, do it in this method.
      str
    end

    def method_missing(id, *args)
      res_proc = self::METHOD_TBL[id]
      unless res_proc.kind_of? Proc
        if id == :new || (!self::METHOD_TBL.has_key?(id) && !self::ADD_METHOD)
          raise NoMethodError, 
                "not support resource-proc '#{id.id2name}' for #{self.name}"
        end
        proc_str = TkOption.get(self::CARRIER, id.id2name, '')
        proc_str = '{' + proc_str + '}' unless /\A\{.*\}\Z/ =~ proc_str
        proc_str = __check_proc_string__(proc_str)
        res_proc = eval 'Proc.new' + proc_str
        self::METHOD_TBL[id] = res_proc
      end
      proc{
         $SAFE = self::SAFE_MODE
         res_proc.call(*args)
      }.call
    end

    private :__check_proc_string__, :method_missing
  end

  def new_proc_class(klass, func, safe = 4, add = false, parent = nil)
    klass = klass.to_s if klass.kind_of? Symbol
    unless (?A..?Z) === klass[0]
      fail ArgumentError, "bad string '#{klass}' for class name"
    end
    unless func.kind_of? Array
      fail ArgumentError, "method-list must be Array"
    end
    func_str = func.join(' ')
    if parent == nil
      install_win(parent)
    elsif parent <= @@resource_proc_class
      install_win(parent::CARRIER)
    else
      fail ArgumentError, "parent must be Resource-Proc class"
    end
    carrier = Tk.tk_call('frame', @path, '-class', klass)

    body = <<-"EOD"
      class #{klass} < TkOption.module_eval('@@resource_proc_class')
        CARRIER    = '#{carrier}'.freeze
        METHOD_TBL = {}
        ADD_METHOD = #{add}
        SAFE_MODE  = #{safe}
        %w(#{func_str}).each{|f| METHOD_TBL.delete(f.intern) }
      end
    EOD

    if parent.kind_of?(Class) && parent <= @@resource_proc_class
      parent.class_eval body
      eval parent.name + '::' + klass
    else
      eval body
      eval 'TkOption::' + klass
    end
  end
  module_function :new_proc_class
end

module TkTreatFont
  def font_configinfo
    ret = TkFont.used_on(self.path)
    if ret == nil
      ret = TkFont.init_widget_font(self.path, self.path, 'configure')
    end
    ret
  end
  alias fontobj font_configinfo

  def font_configure(slot)
    slot = _symbolkey2str(slot)
    if (fnt = slot.delete('font'))
      if fnt.kind_of? TkFont
	return fnt.call_font_configure(self.path, self.path,'configure',slot)
      else
	latinfont_configure(fnt) if fnt
      end
    end
    if (ltn = slot.delete('latinfont'))
      latinfont_configure(ltn) if ltn
    end
    if (ltn = slot.delete('asciifont'))
      latinfont_configure(ltn) if ltn
    end
    if (knj = slot.delete('kanjifont'))
      kanjifont_configure(knj) if knj
    end

    tk_call(self.path, 'configure', *hash_kv(slot)) if slot != {}
    self
  end

  def latinfont_configure(ltn, keys=nil)
    fobj = fontobj
    if ltn.kind_of? TkFont
      conf = {}
      ltn.latin_configinfo.each{|key,val| conf[key] = val}
      if keys
	fobj.latin_configure(conf.update(keys))
      else
	fobj.latin_configure(conf)
      end
    else
      fobj.latin_replace(ltn)
    end
  end
  alias asciifont_configure latinfont_configure

  def kanjifont_configure(knj, keys=nil)
    fobj = fontobj
    if knj.kind_of? TkFont
      conf = {}
      knj.kanji_configinfo.each{|key,val| conf[key] = val}
      if keys
	fobj.kanji_configure(conf.update(keys))
      else
	fobj.kanji_configure(cond)
      end
    else
      fobj.kanji_replace(knj)
    end
  end

  def font_copy(window, tag=nil)
    if tag
      window.tagfontobj(tag).configinfo.each{|key,value|
	fontobj.configure(key,value)
      }
      fontobj.replace(window.tagfontobj(tag).latin_font, 
		      window.tagfontobj(tag).kanji_font)
    else
      window.fontobj.configinfo.each{|key,value|
	fontobj.configure(key,value)
      }
      fontobj.replace(window.fontobj.latin_font, window.fontobj.kanji_font)
    end
  end

  def latinfont_copy(window, tag=nil)
    if tag
      fontobj.latin_replace(window.tagfontobj(tag).latin_font)
    else
      fontobj.latin_replace(window.fontobj.latin_font)
    end
  end
  alias asciifont_copy latinfont_copy

  def kanjifont_copy(window, tag=nil)
    if tag
      fontobj.kanji_replace(window.tagfontobj(tag).kanji_font)
    else
      fontobj.kanji_replace(window.fontobj.kanji_font)
    end
  end
end

module TkTreatItemFont
  def __conf_cmd(idx)
    raise NotImplementError, "need to define `__conf_cmd'"
  end
  def __item_pathname(tagOrId)
    raise NotImplementError, "need to define `__item_pathname'"
  end
  private :__conf_cmd, :__item_pathname

  def tagfont_configinfo(tagOrId)
    pathname = __item_pathname(tagOrId)
    ret = TkFont.used_on(pathname)
    if ret == nil
      ret = TkFont.init_widget_font(pathname, self.path, 
				    __conf_cmd(0), __conf_cmd(1), tagOrId)
    end
    ret
  end
  alias tagfontobj tagfont_configinfo

  def tagfont_configure(tagOrId, slot)
    pathname = __item_pathname(tagOrId)
    slot = _symbolkey2str(slot)
    if (fnt = slot.delete('font'))
      if fnt.kind_of? TkFont
	return fnt.call_font_configure(pathname, self.path, 
				       __conf_cmd(0), __conf_cmd(1), 
				       tagOrId, slot)
      else
	latintagfont_configure(tagOrId, fnt) if fnt
      end
    end
    if (ltn = slot.delete('latinfont'))
      latintagfont_configure(tagOrId, ltn) if ltn
    end
    if (ltn = slot.delete('asciifont'))
      latintagfont_configure(tagOrId, ltn) if ltn
    end
    if (knj = slot.delete('kanjifont'))
      kanjitagfont_configure(tagOrId, knj) if knj
    end

    tk_call(self.path, __conf_cmd(0), __conf_cmd(1), 
	    tagOrId, *hash_kv(slot)) if slot != {}
    self
  end

  def latintagfont_configure(tagOrId, ltn, keys=nil)
    fobj = tagfontobj(tagOrId)
    if ltn.kind_of? TkFont
      conf = {}
      ltn.latin_configinfo.each{|key,val| conf[key] = val if val != []}
      if conf == {}
	fobj.latin_replace(ltn)
	fobj.latin_configure(keys) if keys
      elsif keys
	fobj.latin_configure(conf.update(keys))
      else
	fobj.latin_configure(conf)
      end
    else
      fobj.latin_replace(ltn)
    end
  end
  alias asciitagfont_configure latintagfont_configure

  def kanjitagfont_configure(tagOrId, knj, keys=nil)
    fobj = tagfontobj(tagOrId)
    if knj.kind_of? TkFont
      conf = {}
      knj.kanji_configinfo.each{|key,val| conf[key] = val if val != []}
      if conf == {}
	fobj.kanji_replace(knj)
	fobj.kanji_configure(keys) if keys
      elsif keys
	fobj.kanji_configure(conf.update(keys))
      else
	fobj.kanji_configure(conf)
      end
    else
      fobj.kanji_replace(knj)
    end
  end

  def tagfont_copy(tagOrId, window, wintag=nil)
    if wintag
      window.tagfontobj(wintag).configinfo.each{|key,value|
	tagfontobj(tagOrId).configure(key,value)
      }
      tagfontobj(tagOrId).replace(window.tagfontobj(wintag).latin_font, 
				window.tagfontobj(wintag).kanji_font)
    else
      window.tagfont(wintag).configinfo.each{|key,value|
	tagfontobj(tagOrId).configure(key,value)
      }
      tagfontobj(tagOrId).replace(window.fontobj.latin_font, 
				window.fontobj.kanji_font)
    end
  end

  def latintagfont_copy(tagOrId, window, wintag=nil)
    if wintag
      tagfontobj(tagOrId).latin_replace(window.tagfontobj(wintag).latin_font)
    else
      tagfontobj(tagOrId).latin_replace(window.fontobj.latin_font)
    end
  end
  alias asciitagfont_copy latintagfont_copy

  def kanjitagfont_copy(tagOrId, window, wintag=nil)
    if wintag
      tagfontobj(tagOrId).kanji_replace(window.tagfontobj(wintag).kanji_font)
    else
      tagfontobj(tagOrId).kanji_replace(window.fontobj.kanji_font)
    end
  end
end

class TkObject<TkKernel
  include Tk
  include TkTreatFont
  include TkBindCore

  def path
    return @path
  end

  def epath
    return @path
  end

  def to_eval
    @path
  end

  def tk_send(cmd, *rest)
    tk_call path, cmd, *rest
  end
  private :tk_send

  def method_missing(id, *args)
    name = id.id2name
    case args.length
    when 1
      configure name, args[0]
    when 0
      begin
	cget name
      rescue
	fail NameError, "undefined local variable or method `#{name}' for #{self.to_s}", error_at
      end
    else
      fail NameError, "undefined method `#{name}' for #{self.to_s}", error_at
    end
  end

  def [](id)
    cget id
  end

  def []=(id, val)
    configure id, val
  end

  def cget(slot)
    case slot.to_s
    when 'text', 'label', 'show', 'data', 'file'
      tk_call path, 'cget', "-#{slot}"
    else
      tk_tcl2ruby tk_call(path, 'cget', "-#{slot}")
    end
  end

  def configure(slot, value=None)
    if slot.kind_of? Hash
      if (slot['font'] || slot[:font] || 
          slot['kanjifont'] || slot[:kanjifont] || 
	  slot['latinfont'] || slot[:latinfont] || 
          slot['asciifont'] || slot[:asciifont] )
	font_configure(slot)
      else
	tk_call path, 'configure', *hash_kv(slot)
      end

    else
      if (slot == 'font' || slot == :font || 
          slot == 'kanjifont' || slot == :kanjifont || 
	  slot == 'latinfont' || slot == :latinfont || 
          slot == 'asciifont' || slot == :asciifont )
	if value == None
	  fontobj
	else
	  font_configure({slot=>value})
	end
      else
	tk_call path, 'configure', "-#{slot}", value
      end
    end
  end

  def configure_cmd(slot, value)
    configure slot, install_cmd(value)
  end

  def configinfo(slot = nil)
    if slot == 'font' || slot == :font || 
       slot == 'kanjifont' || slot == :kanjifont
      fontobj
    else
      if slot
	case slot.to_s
	when 'text', 'label', 'show', 'data', 'file'
	  conf = tk_split_simplelist(tk_send('configure', "-#{slot}") )
	else
	  conf = tk_split_list(tk_send('configure', "-#{slot}") )
	end
	conf[0] = conf[0][1..-1]
	conf
      else
	ret = tk_split_simplelist(tk_send('configure') ).collect{|conflist|
	  conf = tk_split_simplelist(conflist)
	  conf[0] = conf[0][1..-1]
	  case conf[0]
	  when 'text', 'label', 'show', 'data', 'file'
	  else
	    if conf[3]
	      if conf[3].index('{')
		conf[3] = tk_split_list(conf[3]) 
	      else
		conf[3] = tk_tcl2ruby(conf[3]) 
	      end
	    end
	    if conf[4]
	      if conf[4].index('{')
		conf[4] = tk_split_list(conf[4]) 
	      else
		conf[4] = tk_tcl2ruby(conf[4]) 
	      end
	    end
	  end
	  conf
	}
	fontconf = ret.assoc('font')
	if fontconf
	  ret.delete_if{|item| item[0] == 'font' || item[0] == 'kanjifont'}
	  fontconf[4] = fontobj
	  ret.push(fontconf)
	else
	  ret
	end
      end
    end
  end

  def event_generate(context, keys=nil)
    if keys
      tk_call('event', 'generate', path, 
	      "<#{tk_event_sequence(context)}>", *hash_kv(keys))
    else
      tk_call('event', 'generate', path, "<#{tk_event_sequence(context)}>")
    end
  end

  def tk_trace_variable(v)
    unless v.kind_of?(TkVariable)
      fail ArgumentError, format("requires TkVariable given %s", v.type)
    end
    v
  end
  private :tk_trace_variable

  def destroy
    tk_call 'trace', 'vdelete', @tk_vn, 'w', @var_id if @var_id
  end
end

class TkWindow<TkObject
  extend TkBindCore

  def initialize(parent=nil, keys=nil)
    if parent.kind_of? Hash
      keys = _symbolkey2str(parent)
      keydup = true
      parent = keys.delete('parent')
      widgetname = keys.delete('widgetname')
      install_win(if parent then parent.path end, widgetname)
    elsif keys
      keys = _symbolkey2str(keys)
      widgetname = keys.delete('widgetname')
      install_win(if parent then parent.path end, widgetname)
    else
      install_win(if parent then parent.path end)
    end
    if self.method(:create_self).arity == 0
      p 'create_self has no arg' if $DEBUG
      create_self
      if keys
	# tk_call @path, 'configure', *hash_kv(keys)
	configure(keys)
      end
    else
      p 'create_self has args' if $DEBUG
      fontkeys = {}
      if keys
	['font', 'kanjifont', 'latinfont', 'asciifont'].each{|key|
	  fontkeys[key] = keys.delete(key) if keys.key?(key)
	}
      end
      create_self(keys)
      font_configure(fontkeys) unless fontkeys.empty?
    end
  end

  def create_self
  end
  private :create_self

  def pack(keys = nil)
    tk_call 'pack', epath, *hash_kv(keys)
    self
  end

  def unpack
    tk_call 'pack', 'forget', epath
    self
  end
  alias pack_forget unpack

  def pack_config(slot, value=None)
    if slot.kind_of? Hash
      tk_call 'pack', 'configure', epath, *hash_kv(slot)
    else
      tk_call 'pack', 'configure', epath, "-#{slot}", value
    end
  end

  def pack_info()
    ilist = list(tk_call('pack', 'info', epath))
    info = {}
    while key = ilist.shift
      info[key[1..-1]] = ilist.shift
    end
    return info
  end

  def pack_propagate(mode = nil)
    if mode
      tk_call('pack', 'propagate', epath, mode)
    else
      bool(tk_call('pack', 'propagate', epath))
    end
  end

  def pack_slaves()
    list(tk_call('pack', 'slaves', epath))
  end

  def grid(keys = nil)
    tk_call 'grid', epath, *hash_kv(keys)
    self
  end

  def ungrid
    tk_call 'grid', 'forget', epath
    self
  end
  alias grid_forget ungrid

  def grid_bbox(*args)
    list(tk_call('grid', 'bbox', epath, *args))
  end

  def grid_config(slot, value=None)
    if slot.kind_of? Hash
      tk_call 'grid', 'configure', epath, *hash_kv(slot)
    else
      tk_call 'grid', 'configure', epath, "-#{slot}", value
    end
  end

  def grid_columnconfig(index, keys)
    tk_call('grid', 'columnconfigure', epath, index, *hash_kv(keys))
  end

  def grid_rowconfig(index, keys)
    tk_call('grid', 'rowconfigure', epath, index, *hash_kv(keys))
  end

  def grid_columnconfiginfo(index, slot=nil)
    if slot
      tk_call('grid', 'columnconfigure', epath, index, "-#{slot}")
    else
      ilist = list(tk_call('grid', 'columnconfigure', epath, index))
      info = {}
      while key = ilist.shift
	info[key[1..-1]] = ilist.shift
      end
      info
    end
  end

  def grid_rowconfiginfo(index, slot=nil)
    if slot
      tk_call('grid', 'rowconfigure', epath, index, "-#{slot}")
    else
      ilist = list(tk_call('grid', 'rowconfigure', epath, index))
      info = {}
      while key = ilist.shift
	info[key[1..-1]] = ilist.shift
      end
      info
    end
  end

  def grid_info()
    list(tk_call('grid', 'info', epath))
  end

  def grid_location(x, y)
    list(tk_call('grid', 'location', epath, x, y))
  end

  def grid_propagate(mode=nil)
    if mode
      tk_call('grid', 'propagate', epath, mode)
    else
      bool(tk_call('grid', 'propagate', epath))
    end
  end

  def grid_remove()
    tk_call 'grid', 'remove', epath
  end

  def grid_size()
    tk_call 'grid', 'size', epath
  end

  def grid_slaves(args)
    list(tk_call('grid', 'slaves', epath, *hash_kv(args)))
  end

  def place(keys = nil)
    tk_call 'place', epath, *hash_kv(keys)
    self
  end

  def unplace
    tk_call 'place', 'forget', epath
    self
  end
  alias place_forget unplace

  def place_config(slot, value=None)
    if slot.kind_of? Hash
      tk_call 'place', 'configure', epath, *hash_kv(slot)
    else
      tk_call 'place', 'configure', epath, "-#{slot}", value
    end
  end

  def place_configinfo(slot = nil)
    # for >= Tk8.4a2 ?
    if slot
      conf = tk_split_list(tk_call('place', 'configure', epath, "-#{slot}") )
      conf[0] = conf[0][1..-1]
      conf
    else
      tk_split_simplelist(tk_call('place', 
				  'configure', epath)).collect{|conflist|
	conf = tk_split_simplelist(conflist)
	conf[0] = conf[0][1..-1]
	conf
      }
    end
  end

  def place_info()
    ilist = list(tk_call('place', 'info', epath))
    info = {}
    while key = ilist.shift
      info[key[1..-1]] = ilist.shift
    end
    return info
  end

  def place_slaves()
    list(tk_call('place', 'slaves', epath))
  end

  def focus(force=false)
    if force
      tk_call 'focus', '-force', path
    else
      tk_call 'focus', path
    end
    self
  end

  def grab(*args)
    if !args or args.length == 0
      tk_call 'grab', 'set', path
    elsif args.length == 1
      case args[0]
      when 'global', :global
	return(tk_call('grab', 'set', '-global', path))
      when 'release', :release
	return tk_call('grab', 'release', path)
      else
	val = tk_call('grab', args[0], path)
      end
      case args[0]
      when 'current', :current
	return window(val)
      when 'status', :status
	return val
      end
    else
      fail ArgumentError, 'wrong # of args'
    end
  end

  def lower(below=None)
    tk_call 'lower', epath, below
    self
  end
  def raise(above=None)
    tk_call 'raise', epath, above
    self
  end

  def command(cmd=Proc.new)
    configure_cmd 'command', cmd
  end

  def colormodel model=None
    tk_call 'tk', 'colormodel', path, model
    self
  end

  def destroy
    super
    tk_call 'destroy', epath
    if @cmdtbl
      for id in @cmdtbl
	uninstall_cmd id
      end
    end
    uninstall_win
  end

  def wait_visibility
    tk_call 'tkwait', 'visibility', path
  end
  alias wait wait_visibility

  def wait_destroy
    tk_call 'tkwait', 'window', epath
  end

  def bindtags(taglist=nil)
    if taglist
      fail ArgumentError unless taglist.kind_of? Array
      tk_call('bindtags', path, taglist)
    else
      list(tk_call('bindtags', path)).collect{|tag|
	if tag.kind_of?(String) 
	  if cls = WidgetClassNames[tag]
	    cls
	  elsif btag = TkBindTag.id2obj(tag)
	    btag
	  else
	    tag
	  end
	else
	  tag
	end
      }
    end
  end
end

class TkRoot<TkWindow
  include Wm
  ROOT = []
  def TkRoot.new
    return ROOT[0] if ROOT[0]
    new = super
    ROOT[0] = new
    Tk_WINDOWS["."] = new
  end

  WidgetClassName = 'Tk'.freeze
  WidgetClassNames[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

  def create_self
    @path = '.'
  end
  def path
    "."
  end
end

class TkToplevel<TkWindow
  include Wm

  WidgetClassName = 'Toplevel'.freeze
  WidgetClassNames[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

################# old version
#  def initialize(parent=nil, screen=nil, classname=nil, keys=nil)
#    if screen.kind_of? Hash
#      keys = screen.dup
#    else
#      @screen = screen
#    end
#    @classname = classname
#    if keys.kind_of? Hash
#      keys = keys.dup
#      @classname = keys.delete('classname') if keys.key?('classname')
#      @colormap  = keys.delete('colormap')  if keys.key?('colormap')
#      @container = keys.delete('container') if keys.key?('container')
#      @screen    = keys.delete('screen')    if keys.key?('screen')
#      @use       = keys.delete('use')       if keys.key?('use')
#      @visual    = keys.delete('visual')    if keys.key?('visual')
#    end
#    super(parent, keys)
#  end
#
#  def create_self
#    s = []
#    s << "-class"     << @classname if @classname
#    s << "-colormap"  << @colormap  if @colormap
#    s << "-container" << @container if @container
#    s << "-screen"    << @screen    if @screen 
#    s << "-use"       << @use       if @use
#    s << "-visual"    << @visual    if @visual
#    tk_call 'toplevel', @path, *s
#  end
#################

  def initialize(parent=nil, screen=nil, classname=nil, keys=nil)
    if parent.kind_of? Hash
      keys = _symbolkey2str(parent)
      @screen    = keys['screen']
      @classname = keys['class']
      @colormap  = keys['colormap']
      @container = keys['container']
      @screen    = keys['screen']
      @use       = keys['use']
      @visual    = keys['visual']
      super(keys)
      return
    end
    if screen.kind_of? Hash
      keys = _symbolkey2str(screen)
    else
      @screen = screen
    end
    @classname = classname
    if keys.kind_of? Hash
      keys = _symbolkey2str(keys)
      if keys.key?(:classname) || keys.key?('classname')
	keys['class'] = keys.delete('classname')
      end
      @classname = keys['class']
      @colormap  = keys['colormap']
      @container = keys['container']
      @screen    = keys['screen']
      @use       = keys['use']
      @visual    = keys['visual']
    end
    super(parent, keys)
  end

  def create_self(keys)
    if keys and keys != None
      tk_call 'toplevel', @path, *hash_kv(keys)
    else
      tk_call 'toplevel', @path
    end
  end

  def specific_class
    @classname
  end
end

class TkFrame<TkWindow
  WidgetClassName = 'Frame'.freeze
  WidgetClassNames[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

################# old version
#  def initialize(parent=nil, keys=nil)
#    if keys.kind_of? Hash
#      keys = keys.dup
#      @classname = keys.delete('classname') if keys.key?('classname')
#      @colormap  = keys.delete('colormap')  if keys.key?('colormap')
#      @container = keys.delete('container') if keys.key?('container')
#      @visual    = keys.delete('visual')    if keys.key?('visual')
#    end
#    super(parent, keys)
#  end
#
#  def create_self
#    s = []
#    s << "-class"     << @classname if @classname
#    s << "-colormap"  << @colormap  if @colormap
#    s << "-container" << @container if @container
#    s << "-visual"    << @visual    if @visual
#    tk_call 'frame', @path, *s
#  end
#################

  def initialize(parent=nil, keys=nil)
    if parent.kind_of? Hash
      keys = _symbolkey2str(parent)
    else
      if keys
        keys = _symbolkey2str(keys)
        keys['parent'] = parent
      else
        keys = {'parent'=>parent}
      end
    end
    if keys.key?('classname')
       keys['class'] = keys.delete('classname')
    end
    @classname = keys['class']
    @colormap  = keys['colormap']
    @container = keys['container']
    @visual    = keys['visual']
    super(keys)
  end

  def create_self(keys)
    if keys and keys != None
      tk_call 'frame', @path, *hash_kv(keys)
    else
      tk_call 'frame', @path
    end
  end
end

class TkLabel<TkWindow
  WidgetClassName = 'Label'.freeze
  WidgetClassNames[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end
  def create_self(keys)
    if keys and keys != None
      tk_call 'label', @path, *hash_kv(keys)
    else
      tk_call 'label', @path
    end
  end
  def textvariable(v)
    configure 'textvariable', tk_trace_variable(v)
  end
end

class TkButton<TkLabel
  WidgetClassNames['Button'] = self
  def TkButton.to_eval
    'Button'
  end
  def create_self(keys)
    if keys and keys != None
      tk_call 'button', @path, *hash_kv(keys)
    else
      tk_call 'button', @path
    end
  end
  def invoke
    tk_send 'invoke'
  end
  def flash
    tk_send 'flash'
  end
end

class TkRadioButton<TkButton
  WidgetClassNames['Radiobutton'] = self
  def TkRadioButton.to_eval
    'Radiobutton'
  end
  def create_self(keys)
    if keys and keys != None
      tk_call 'radiobutton', @path, *hash_kv(keys)
    else
      tk_call 'radiobutton', @path
    end
  end
  def deselect
    tk_send 'deselect'
  end
  def select
    tk_send 'select'
  end
  def variable(v)
    configure 'variable', tk_trace_variable(v)
  end
end
TkRadiobutton = TkRadioButton

class TkCheckButton<TkRadioButton
  WidgetClassNames['Checkbutton'] = self
  def TkCheckButton.to_eval
    'Checkbutton'
  end
  def create_self(keys)
    if keys and keys != None
      tk_call 'checkbutton', @path, *hash_kv(keys)
    else
      tk_call 'checkbutton', @path
    end
  end
  def toggle
    tk_send 'toggle'
  end
end
TkCheckbutton = TkCheckButton

class TkMessage<TkLabel
  WidgetClassNames['Message'] = self
  def TkMessage.to_eval
    'Message'
  end
  def create_self(keys)
    if keys and keys != None
      tk_call 'message', @path, *hash_kv(keys)
    else
      tk_call 'message', @path
    end
  end
end

class TkScale<TkWindow
  WidgetClassName = 'Scale'.freeze
  WidgetClassNames[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

  def create_self(keys)
    if keys and keys != None
      tk_call 'scale', @path, *hash_kv(keys)
    else
      tk_call 'scale', @path
    end
  end

  def get(x=None, y=None)
    number(tk_send('get', x, y))
  end

  def coords(val=None)
    tk_split_list(tk_send('coords', val))
  end

  def identify(x, y)
    tk_send('identify', x, y)
  end

  def set(val)
    tk_send "set", val
  end

  def value
    get
  end

  def value= (val)
    set val
  end
end

class TkScrollbar<TkWindow
  WidgetClassName = 'Scrollbar'.freeze
  WidgetClassNames[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

  def create_self(keys)
    if keys and keys != None
      tk_call 'scrollbar', @path, *hash_kv(keys)
    else
      tk_call 'scrollbar', @path
    end
  end

  def delta(deltax=None, deltay=None)
    number(tk_send('delta', deltax, deltay))
  end

  def fraction(x=None, y=None)
    number(tk_send('fraction', x, y))
  end

  def identify(x, y)
    tk_send('identify', x, y)
  end

  def get
    ary1 = tk_send('get').split
    ary2 = []
    for i in ary1
      ary2.push number(i)
    end
    ary2
  end

  def set(first, last)
    tk_send "set", first, last
  end

  def activate(element=None)
    tk_send('activate', element)
  end
end

class TkTextWin<TkWindow
  def create_self
    fail TypeError, "TkTextWin is abstract class"
  end

  def bbox(index)
    tk_send 'bbox', index
  end
  def delete(first, last=None)
    tk_send 'delete', first, last
  end
  def get(*index)
    tk_send 'get', *index
  end
  def index(index)
    tk_send 'index', index
  end
  def insert(index, chars, *args)
    tk_send 'insert', index, chars, *args
  end
  def scan_mark(x, y)
    tk_send 'scan', 'mark', x, y
  end
  def scan_dragto(x, y)
    tk_send 'scan', 'dragto', x, y
  end
  def see(index)
    tk_send 'see', index
  end
end

module TkTreatListItemFont
  include TkTreatItemFont

  ItemCMD = ['itemconfigure', TkComm::None]
  def __conf_cmd(idx)
    ItemCMD[idx]
  end

  def __item_pathname(tagOrId)
    self.path + ';' + tagOrId.to_s
  end
end

class TkListbox<TkTextWin
  include TkTreatListItemFont
  include Scrollable

  WidgetClassNames['Listbox'] = self
  def TkListbox.to_eval
    'Listbox'
  end
  def create_self(keys)
    if keys and keys != None
      tk_call 'listbox', @path, *hash_kv(keys)
    else
      tk_call 'listbox', @path
    end
  end

  def activate(y)
    tk_send 'activate', y
  end
  def curselection
    list(tk_send('curselection'))
  end
  def get(*index)
    v = tk_send('get', *index)
    if index.size == 1
      v
    else
      tk_split_simplelist(v)
    end
  end
  def nearest(y)
    tk_send('nearest', y).to_i
  end
  def size
    tk_send('size').to_i
  end
  def selection_anchor(index)
    tk_send 'selection', 'anchor', index
  end
  def selection_clear(first, last=None)
    tk_send 'selection', 'clear', first, last
  end
  def selection_includes(index)
    bool(tk_send('selection', 'includes', index))
  end
  def selection_set(first, last=None)
    tk_send 'selection', 'set', first, last
  end

  def itemcget(index, key)
    case key.to_s
    when 'text', 'label', 'show'
      tk_send 'itemcget', index, "-#{key}"
    else
      tk_tcl2ruby tk_send('itemcget', index, "-#{key}")
    end
  end
  def itemconfigure(index, key, val=None)
    if key.kind_of? Hash
      if (key['font'] || key[:font] || 
          key['kanjifont'] || key[:kanjifont] || 
	  key['latinfont'] || key[:latinfont] || 
          key['asciifont'] || key[:asciifont] )
	tagfont_configure(index, _symbolkey2str(key))
      else
	tk_send 'itemconfigure', index, *hash_kv(key)
      end

    else
      if (key == 'font' || key == :font || 
          key == 'kanjifont' || key == :kanjifont || 
	  key == 'latinfont' || key == :latinfont || 
          key == 'asciifont' || key == :asciifont )
	tagfont_configure(index, {key=>val})
      else
	tk_call 'itemconfigure', index, "-#{key}", val
      end
    end
  end

  def itemconfiginfo(index, key=nil)
    if key
      case key.to_s
      when 'text', 'label', 'show'
	conf = tk_split_simplelist(tk_send('itemconfigure',index,"-#{key}"))
      else
	conf = tk_split_list(tk_send('itemconfigure',index,"-#{key}"))
      end
      conf[0] = conf[0][1..-1]
      conf
    else
      tk_split_simplelist(tk_send('itemconfigure', index)).collect{|conflist|
	conf = tk_split_simplelist(conflist)
	conf[0] = conf[0][1..-1]
	case conf[0]
	when 'text', 'label', 'show'
	else
	  if conf[3]
	    if conf[3].index('{')
	      conf[3] = tk_split_list(conf[3]) 
	    else
	      conf[3] = tk_tcl2ruby(conf[3]) 
	    end
	  end
	  if conf[4]
	    if conf[4].index('{')
	      conf[4] = tk_split_list(conf[4]) 
	    else
	      conf[4] = tk_tcl2ruby(conf[4]) 
	    end
	  end
	end
	conf
      }
    end
  end
end

module TkTreatMenuEntryFont
  include TkTreatItemFont

  ItemCMD = ['entryconfigure', TkComm::None]
  def __conf_cmd(idx)
    ItemCMD[idx]
  end
  
  def __item_pathname(tagOrId)
    self.path + ';' + tagOrId.to_s
  end
end

class TkMenu<TkWindow
  include TkTreatMenuEntryFont

  WidgetClassName = 'Menu'.freeze
  WidgetClassNames[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end
  def create_self(keys)
    if keys and keys != None
      tk_call 'menu', @path, *hash_kv(keys)
    else
      tk_call 'menu', @path
    end
  end
  def activate(index)
    tk_send 'activate', index
  end
  def add(type, keys=nil)
    tk_send 'add', type, *hash_kv(keys)
  end
  def index(index)
    tk_send 'index', index
  end
  def invoke(index)
    tk_send 'invoke', index
  end
  def insert(index, type, keys=nil)
    tk_send 'insert', index, type, *hash_kv(keys)
  end
  def delete(index, last=None)
    tk_send 'delete', index, last
  end
  def popup(x, y, index=None)
    tk_call 'tk_popup', path, x, y, index
  end
  def post(x, y)
    tk_send 'post', x, y
  end
  def postcascade(index)
    tk_send 'postcascade', index
  end
  def postcommand(cmd=Proc.new)
    configure_cmd 'postcommand', cmd
  end
  def tearoffcommand(cmd=Proc.new)
    configure_cmd 'tearoffcommand', cmd
  end
  def menutype(index)
    tk_send 'type', index
  end
  def unpost
    tk_send 'unpost'
  end
  def yposition(index)
    number(tk_send('yposition', index))
  end
  def entrycget(index, key)
    case key.to_s
    when 'text', 'label', 'show'
      tk_send 'entrycget', index, "-#{key}"
    else
      tk_tcl2ruby tk_send('entrycget', index, "-#{key}")
    end
  end
  def entryconfigure(index, key, val=None)
    if key.kind_of? Hash
      if (key['font'] || key[:font] || 
          key['kanjifont'] || key[:kanjifont] || 
	  key['latinfont'] || key[:latinfont] || 
          key['asciifont'] || key[:asciifont])
	tagfont_configure(index, _symbolkey2str(key))
      else
	tk_send 'entryconfigure', index, *hash_kv(key)
      end

    else
      if (key == 'font' || key == :font || 
          key == 'kanjifont' || key == :kanjifont || 
	  key == 'latinfont' || key == :latinfont || 
          key == 'asciifont' || key == :asciifont )
	tagfont_configure({key=>val})
      else
	tk_call 'entryconfigure', index, "-#{key}", val
      end
    end
  end

  def entryconfiginfo(index, key=nil)
    if key
      case key.to_s
      when 'text', 'label', 'show'
	conf = tk_split_simplelist(tk_send('entryconfigure',index,"-#{key}"))
      else
	conf = tk_split_list(tk_send('entryconfigure',index,"-#{key}"))
      end
      conf[0] = conf[0][1..-1]
      conf
    else
      tk_split_simplelist(tk_send('entryconfigure', index)).collect{|conflist|
	conf = tk_split_simplelist(conflist)
	conf[0] = conf[0][1..-1]
	case conf[0]
	when 'text', 'label', 'show'
	else
	  if conf[3]
	    if conf[3].index('{')
	      conf[3] = tk_split_list(conf[3]) 
	    else
	      conf[3] = tk_tcl2ruby(conf[3]) 
	    end
	  end
	  if conf[4]
	    if conf[4].index('{')
	      conf[4] = tk_split_list(conf[4]) 
	    else
	      conf[4] = tk_tcl2ruby(conf[4]) 
	    end
	  end
	end
	conf
      }
    end
  end
end

class TkMenuClone<TkMenu
  def initialize(parent, type=None)
    widgetname = nil
    if parent.kind_of? Hash
      keys = _symbolkey2str(parent)
      parent = keys.delete('parent')
      widgetname = keys.delete('widgetname')
      type = keys.delete('type'); type = None unless type
    end
    unless parent.kind_of?(TkMenu)
      fail ArgumentError, "parent must be TkMenu"
    end
    @parent = parent
    install_win(@parent.path, widgetname)
    tk_call @parent.path, 'clone', @path, type
  end
end

module TkSystemMenu
  def initialize(parent, keys=nil)
    if parent.kind_of? Hash
      keys = _symbolkey2str(parent)
      parent = keys.delete('parent')
    end
    fail unless parent.kind_of? TkMenu
    @path = format("%s.%s", parent.path, self.type::SYSMENU_NAME)
    TkComm::Tk_WINDOWS[@path] = self
    if self.method(:create_self).arity == 0
      p 'create_self has no arg' if $DEBUG
      create_self
      configure(keys) if keys
    else
      p 'create_self has an arg' if $DEBUG
      create_self(keys)
    end
  end
end

class TkSysMenu_Help<TkMenu
  # for all platform
  include TkSystemMenu
  SYSMENU_NAME = 'help'
end

class TkSysMenu_System<TkMenu
  # for Windows
  include TkSystemMenu
  SYSMENU_NAME = 'system'
end

class TkSysMenu_Apple<TkMenu
  # for Machintosh
  include TkSystemMenu
  SYSMENU_NAME = 'apple'
end

class TkMenubutton<TkLabel
  WidgetClassNames['Menubutton'] = self
  def TkMenubutton.to_eval
    'Menubutton'
  end
  def create_self(keys)
    if keys and keys != None
      tk_call 'menubutton', @path, *hash_kv(keys)
    else
      tk_call 'menubutton', @path
    end
  end
end

class TkOptionMenubutton<TkMenubutton
  class OptionMenu<TkMenu
    def initialize(parent)
      @path = parent.path + '.menu'
      TkComm::Tk_WINDOWS[@path] = self
    end
  end

  def initialize(parent=nil, var=TkVariable.new, firstval=nil, *vals)
    if parent.kind_of Hash
       keys = _symbolkey2str(parent)
       parent = keys['parent']
       var = keys['variable'] if keys['variable']
       firstval, *vals = keys['values']
    end
    fail unless var.kind_of? TkVariable
    @variable = var
    firstval = @variable.value unless firstval
    @variable.value = firstval
    install_win(if parent then parent.path end)
    @menu = OptionMenu.new(self)
    tk_call 'tk_optionMenu', @path, @variable.id, firstval, *vals
  end

  def value
    @variable.value
  end

  def activate(index)
    @menu.activate(index)
  end
  def add(value)
    @menu.add('radiobutton', 'variable'=>@variable, 
	      'label'=>value, 'value'=>value)
  end
  def index(index)
    @menu.index(index)
  end
  def invoke(index)
    @menu.invoke(index)
  end
  def insert(index, value)
    @menu.add(index, 'radiobutton', 'variable'=>@variable, 
	      'label'=>value, 'value'=>value)
  end
  def delete(index, last=None)
    @menu.delete(index, last)
  end
  def yposition(index)
    @menu.yposition(index)
  end
  def menucget(index, key)
    @menu.cget(index, key)
  end
  def menuconfigure(index, key, val=None)
    @menu.configure(index, key, val)
  end
  def menuconfiginfo(index, key=nil)
    @menu.configinfo(index, key)
  end
  def entrycget(index, key)
    @menu.entrycget(index, key)
  end
  def entryconfigure(index, key, val=None)
    @menu.entryconfigure(index, key, val)
  end
  def entryconfiginfo(index, key=nil)
    @menu.entryconfiginfo(index, key)
  end
end

module TkComposite
  include Tk
  extend Tk

  def initialize(parent=nil, *args)
    if parent.kind_of? Hash
      keys = _symbolkey2str(parent)
      parent = keys['parent']
      keys['parent'] = @frame = TkFrame.new(parent)
      @path = @epath = @frame.path
      initialize_composite(keys)
    else
      @frame = TkFrame.new(parent)
      @path = @epath = @frame.path
      initialize_composite(*args)
    end
  end

  def epath
    @epath
  end

  def initialize_composite(*args) end
  private :initialize_composite

  def delegate(option, *wins)
    unless @delegates
      @delegates = {} 
      @delegates['DEFAULT'] = @frame
    end
    if @delegates[option].kind_of?(Array)
      for i in wins
	@delegates[option].push(i)
      end
    else
      @delegates[option] = wins
    end
  end

  def configure(slot, value=None)
    if slot.kind_of? Hash
      slot.each{|slot,value| configure slot, value}
    else
      if @delegates and @delegates[slot]
	for i in @delegates[slot]
	  if not i
	    i = @delegates['DEFALUT']
	    redo
	  else
	    last = i.configure(slot, value)
	  end
	end
	last
      else
	super
      end
    end
  end
end

module TkClipboard
  include Tk
  extend Tk

  def clear
    tk_call 'clipboard', 'clear'
  end
  def get
    begin
      tk_call 'selection', 'get', '-selection', 'CLIPBOARD'
    rescue
      ''
    end
  end
  def set(data)
    clear
    append(data)
  end
  def append(data)
    tk_call 'clipboard', 'append', data
  end

  module_function :clear, :set, :get, :append
end

autoload :TkCanvas, 'tkcanvas'
autoload :TkImage, 'tkcanvas'
autoload :TkBitmapImage, 'tkcanvas'
autoload :TkPhotoImage, 'tkcanvas'
autoload :TkEntry, 'tkentry'
autoload :TkSpinbox, 'tkentry'
autoload :TkText, 'tktext'
autoload :TkDialog, 'tkdialog'
autoload :TkWarning, 'tkdialog'
autoload :TkMenubar, 'tkmenubar'
autoload :TkAfter, 'tkafter'
autoload :TkPalette, 'tkpalette'
autoload :TkFont, 'tkfont'
autoload :TkVirtualEvent, 'tkvirtevent'
autoload :TkBgError, 'tkbgerror'
autoload :TkManageFocus, 'tkmngfocus'
autoload :TkPalette, 'tkpalette'
autoload :TkWinDDE, 'tkwinpkg'
autoload :TkWinRegistry, 'tkwinpkg'
autoload :TkMacResource, 'tkmacpkg'