This commit was manufactured by cvs2svn to create tag 'v1_8_3'.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_3@9263 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

11 files changed, 0 insertions, 1400 deletions

diff --git a/ext/tk/sample/tcltklib/batsu.gif b/ext/tk/sample/tcltklib/batsu.gif
deleted file mode 100644
index 880cc73e09..0000000000
--- a/ext/tk/sample/tcltklib/batsu.gif
+++ /dev/null
diff --git a/ext/tk/sample/tcltklib/lines0.tcl b/ext/tk/sample/tcltklib/lines0.tcl
deleted file mode 100644
index 8ed3c5e1c1..0000000000
--- a/ext/tk/sample/tcltklib/lines0.tcl
+++ /dev/null
@@ -1,42 +0,0 @@
-#! /usr/local/bin/wish
-
-proc drawlines {} {
-    puts [clock format [clock seconds]]
-
-    for {set j 0} {$j < 100} {incr j} {
-	puts -nonewline "*"
-	flush stdout
-	if {$j & 1} {
-	    set c "blue"
-	} {
-	    set c "red"
-	}
-	for {set i 0} {$i < 100} {incr i} {
-#	    .a create line $i 0 0 [expr 500 - $i] -fill $c
-	}
-    }
-
-    puts [clock format [clock seconds]]
-
-    for {set j 0} {$j < 100} {incr j} {
-	puts -nonewline "*"
-	flush stdout
-	if {$j & 1} {
-	    set c "blue"
-	} {
-	    set c "red"
-	}
-	for {set i 0} {$i < 100} {incr i} {
-	    .a create line $i 0 0 [expr 500 - $i] -fill $c
-	}
-    }
-
-    puts [clock format [clock seconds]]
-#    destroy .
-}
-
-canvas .a -height 500 -width 500
-button .b -text draw -command drawlines
-pack .a .b -side left
-
-# eof
diff --git a/ext/tk/sample/tcltklib/lines1.rb b/ext/tk/sample/tcltklib/lines1.rb
deleted file mode 100644
index 9f21ae6377..0000000000
--- a/ext/tk/sample/tcltklib/lines1.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-#! /usr/local/bin/ruby
-
-require "tcltk"
-
-def drawlines()
-  print Time.now, "\n"
-
-  for j in 0 .. 99
-    print "*"
-    $stdout.flush
-    if (j & 1) != 0
-      col = "blue"
-    else
-      col = "red"
-    end
-    for i in 0 .. 99
-#      $a.e("create line", i, 0, 0, 500 - i, "-fill", col)
-    end
-  end
-
-  print Time.now, "\n"
-
-  for j in 0 .. 99
-    print "*"
-    $stdout.flush
-    if (j & 1) != 0
-      col = "blue"
-    else
-      col = "red"
-    end
-    for i in 0 .. 99
-      $a.e("create line", i, 0, 0, 500 - i, "-fill", col)
-    end
-  end
-
-  print Time.now, "\n"
-#  $ip.commands()["destroy"].e($root)
-end
-
-$ip = TclTkInterpreter.new()
-$root = $ip.rootwidget()
-$a = TclTkWidget.new($ip, $root, "canvas", "-height 500 -width 500")
-$c = TclTkCallback.new($ip, proc{drawlines()})
-$b = TclTkWidget.new($ip, $root, "button", "-text draw -command", $c)
-
-$ip.commands()["pack"].e($a, $b, "-side left")
-
-TclTk.mainloop
-
-# eof
diff --git a/ext/tk/sample/tcltklib/lines2.rb b/ext/tk/sample/tcltklib/lines2.rb
deleted file mode 100644
index e459589f50..0000000000
--- a/ext/tk/sample/tcltklib/lines2.rb
+++ /dev/null
@@ -1,54 +0,0 @@
-#! /usr/local/bin/ruby
-
-require "tk"
-
-def drawlines()
-  print Time.now, "\n"
-
-  for j in 0 .. 99
-    print "*"
-    $stdout.flush
-    if (j & 1) != 0
-      col = "blue"
-    else
-      col = "red"
-    end
-    for i in 0 .. 99
-#      TkcLine.new($a, i, 0, 0, 500 - i, "-fill", col)
-    end
-  end
-
-  print Time.now, "\n"
-
-  for j in 0 .. 99
-    print "*"
-    $stdout.flush
-    if (j & 1) != 0
-      col = "blue"
-    else
-      col = "red"
-    end
-    for i in 0 .. 99
-      TkcLine.new($a, i, 0, 0, 500 - i, "-fill", col)
-    end
-  end
-
-  print Time.now, "\n"
-#  Tk.root.destroy
-end
-
-$a = TkCanvas.new{
-  height(500)
-  width(500)
-}
-
-$b = TkButton.new{
-  text("draw")
-  command(proc{drawlines()})
-}
-
-TkPack.configure($a, $b, {"side"=>"left"})
-
-Tk.mainloop
-
-# eof
diff --git a/ext/tk/sample/tcltklib/lines3.rb b/ext/tk/sample/tcltklib/lines3.rb
deleted file mode 100644
index caa50f92e7..0000000000
--- a/ext/tk/sample/tcltklib/lines3.rb
+++ /dev/null
@@ -1,54 +0,0 @@
-#! /usr/local/bin/ruby
-
-require "tk"
-
-def drawlines()
-  print Time.now, "\n"
-
-  for j in 0 .. 99
-    print "*"
-    $stdout.flush
-    if (j & 1) != 0
-      col = "blue"
-    else
-      col = "red"
-    end
-    for i in 0 .. 99
-#      $a.create(TkcLine, i, 0, 0, 500 - i, "fill"=>col)
-    end
-  end
-
-  print Time.now, "\n"
-
-  for j in 0 .. 99
-    print "*"
-    $stdout.flush
-    if (j & 1) != 0
-      col = "blue"
-    else
-      col = "red"
-    end
-    for i in 0 .. 99
-      $a.create(TkcLine, i, 0, 0, 500 - i, "fill"=>col)
-    end
-  end
-
-  print Time.now, "\n"
-#  Tk.root.destroy
-end
-
-$a = TkCanvas.new{
-  height(500)
-  width(500)
-}
-
-$b = TkButton.new{
-  text("draw")
-  command(proc{drawlines()})
-}
-
-TkPack.configure($a, $b, {"side"=>"left"})
-
-Tk.mainloop
-
-# eof
diff --git a/ext/tk/sample/tcltklib/lines4.rb b/ext/tk/sample/tcltklib/lines4.rb
deleted file mode 100644
index 7a1175bce0..0000000000
--- a/ext/tk/sample/tcltklib/lines4.rb
+++ /dev/null
@@ -1,54 +0,0 @@
-#! /usr/local/bin/ruby
-
-require "tk"
-
-def drawlines()
-  print Time.now, "\n"
-
-  for j in 0 .. 99
-    print "*"
-    $stdout.flush
-    if (j & 1) != 0
-      col = "blue"
-    else
-      col = "red"
-    end
-    for i in 0 .. 99
-#      TkCore::INTERP.__invoke($a.path, "create", "line", i.to_s, '0', '0', (500 - i).to_s, "-fill", col)
-    end
-  end
-
-  print Time.now, "\n"
-
-  for j in 0 .. 99
-    print "*"
-    $stdout.flush
-    if (j & 1) != 0
-      col = "blue"
-    else
-      col = "red"
-    end
-    for i in 0 .. 99
-      TkCore::INTERP.__invoke($a.path, "create", "line", i.to_s, '0', '0', (500 - i).to_s, "-fill", col)
-    end
-  end
-
-  print Time.now, "\n"
-#  Tk.root.destroy
-end
-
-$a = TkCanvas.new{
-  height(500)
-  width(500)
-}
-
-$b = TkButton.new{
-  text("draw")
-  command(proc{drawlines()})
-}
-
-TkPack.configure($a, $b, {"side"=>"left"})
-
-Tk.mainloop
-
-# eof
diff --git a/ext/tk/sample/tcltklib/maru.gif b/ext/tk/sample/tcltklib/maru.gif
deleted file mode 100644
index 2c0202892e..0000000000
--- a/ext/tk/sample/tcltklib/maru.gif
+++ /dev/null
diff --git a/ext/tk/sample/tcltklib/safeTk.rb b/ext/tk/sample/tcltklib/safeTk.rb
deleted file mode 100644
index 5d2c60e700..0000000000
--- a/ext/tk/sample/tcltklib/safeTk.rb
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/env ruby
-require 'tcltklib'
-
-master = TclTkIp.new
-slave_name = 'slave0'
-slave = master.create_slave(slave_name, true)
-master._eval("::safe::interpInit #{slave_name}")
-master._eval("::safe::loadTk #{slave_name}")
-
-master._invoke('label', '.l1', '-text', 'master')
-master._invoke('pack', '.l1', '-padx', '30', '-pady', '50')
-master._eval('label .l2 -text {root widget of master-ip}')
-master._eval('pack .l2 -padx 30 -pady 50')
-
-slave._invoke('label', '.l1', '-text', 'slave')
-slave._invoke('pack', '.l1', '-padx', '30', '-pady', '50')
-slave._eval('label .l2 -text {root widget of slave-ip}')
-slave._eval('pack .l2 -padx 30 -pady 20')
-slave._eval('label .l3 -text {( container frame widget of master-ip )}')
-slave._eval('pack .l3 -padx 30 -pady 20')
-
-TclTkLib.mainloop
diff --git a/ext/tk/sample/tcltklib/sample0.rb b/ext/tk/sample/tcltklib/sample0.rb
deleted file mode 100644
index cd4c8069b4..0000000000
--- a/ext/tk/sample/tcltklib/sample0.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-#! /usr/local/bin/ruby -vd
-
-# tcltklib ライブラリのテスト
-
-require "tcltklib"
-
-def test
-  # インタプリタを生成する
-  ip1 = TclTkIp.new()
-
-  # 評価してみる
-  print ip1._return_value().inspect, "\n"
-  print ip1._eval("puts {abc}").inspect, "\n"
-
-  # ボタンを作ってみる
-  print ip1._return_value().inspect, "\n"
-  print ip1._eval("button .lab -text exit -command \"destroy .\"").inspect,
-    "\n"
-  print ip1._return_value().inspect, "\n"
-  print ip1._eval("pack .lab").inspect, "\n"
-  print ip1._return_value().inspect, "\n"
-
-  # インタプリタから ruby コマンドを評価してみる
-#  print ip1._eval(%q/ruby {print "print by ruby\n"}/).inspect, "\n"
-  print ip1._eval(%q+puts [ruby {print "print by ruby\n"; "puts by tcl/tk"}]+).inspect, "\n"
-  print ip1._return_value().inspect, "\n"
-
-  # もう一つインタプリタを生成してみる
-  ip2 = TclTkIp.new()
-  ip2._eval("button .lab -text test -command \"puts test ; destroy .\"")
-  ip2._eval("pack .lab")
-
-  TclTkLib.mainloop
-end
-
-test
-GC.start
-
-print "exit\n"
diff --git a/ext/tk/sample/tcltklib/sample1.rb b/ext/tk/sample/tcltklib/sample1.rb
deleted file mode 100644
index 13df440751..0000000000
--- a/ext/tk/sample/tcltklib/sample1.rb
+++ /dev/null
@@ -1,634 +0,0 @@
-#! /usr/local/bin/ruby -d
-#! /usr/local/bin/ruby
-# -d オプションを付けると, デバッグ情報を表示する.
-
-# tcltk ライブラリのサンプル
-
-# まず, ライブラリを require する.
-require "tcltk"
-
-# 以下は, Test1 のインスタンスの initialize() で,
-# tcl/tk に関する処理を行う例である.
-# 必ずしもそのようにする必要は無く,
-# (もし, そうしたければ) class の外で tcl/tk に関する処理を行っても良い.
-
-class Test1
-  # 初期化(インタプリタを生成してウィジェットを生成する).
-  def initialize()
-
-    #### 使う前のおまじない
-
-    # インタプリタの生成.
-    ip = TclTkInterpreter.new()
-    # コマンドに対応するオブジェクトを c に設定しておく.
-    c = ip.commands()
-    # 使用するコマンドに対応するオブジェクトは変数に入れておく.
-    append, bind, button, destroy, incr, info, label, place, set, wm =
-      c.values_at(
-      "append", "bind", "button", "destroy", "incr", "info", "label", "place",
-      "set", "wm")
-
-    #### tcl/tk のコマンドに対応するオブジェクト(TclTkCommand)の操作
-
-    # 実行する時は, e() メソッドを使う.
-    # (以下は, tcl/tk における info command r* を実行.)
-    print info.e("command", "r*"), "\n"
-    # 引数は, まとめた文字列にしても同じ.
-    print info.e("command r*"), "\n"
-    # 変数を用いなくとも実行できるが, 見ためが悪い.
-    print c["info"].e("command", "r*"), "\n"
-    # インタプリタのメソッドとしても実行できるが, 効率が悪い.
-    print ip.info("command", "r*"), "\n"
-
-    ####
-
-    # 以下, 生成したオブジェクトは変数に代入しておかないと
-    # GC の対象になってしまう.
-
-    #### tcl/tk の変数に対応するオブジェクト(TclTkVariable)の操作
-
-    # 生成と同時に値を設定する.
-    v1 = TclTkVariable.new(ip, "20")
-    # 読み出しは get メソッドを使う.
-    print v1.get(), "\n"
-    # 設定は set メソッドを使う.
-    v1.set(40)
-    print v1.get(), "\n"
-    # set コマンドを使って読み出し, 設定は可能だが見ためが悪い.
-    # e() メソッド等の引数に直接 TclTkObject や数値を書いても良い.
-    set.e(v1, 30)
-    print set.e(v1), "\n"
-    # tcl/tk のコマンドで変数を操作できる.
-    incr.e(v1)
-    print v1.get(), "\n"
-    append.e(v1, 10)
-    print v1.get(), "\n"
-
-    #### tcl/tk のウィジェットに対応するオブジェクト(TclTkWidget)の操作
-
-    # ルートウィジェットを取り出す.
-    root = ip.rootwidget()
-    # ウィジェットの操作.
-    root.e("configure -height 300 -width 300")
-    # タイトルを付けるときは wm を使う.
-    wm.e("title", root, $0)
-    # 親ウィジェットとコマンドを指定して, ウィジェットを作る.
-    l1 = TclTkWidget.new(ip, root, label, "-text {type `x' to print}")
-    # place すると表示される.
-    place.e(l1, "-x 0 -rely 0.0 -relwidth 1 -relheight 0.1")
-    # コマンド名は文字列で指定しても良いが, 見ためが悪い.
-    # (コマンド名は独立した引数でなければならない.)
-    l2 = TclTkWidget.new(ip, root, "label")
-    # ウィジェットの操作.
-    l2.e("configure -text {type `q' to exit}")
-    place.e(l2, "-x 0 -rely 0.1 -relwidth 1 -relheight 0.1")
-
-    #### tcl/tk のコールバックに対応するオブジェクト(TclTkCallback)の操作
-
-    # コールバックを生成する.
-    c1 = TclTkCallback.new(ip, proc{sample(ip, root)})
-    # コールバックを持つウィジェットを生成する.
-    b1 = TclTkWidget.new(ip, root, button, "-text sample -command", c1)
-    place.e(b1, "-x 0 -rely 0.2 -relwidth 1 -relheight 0.1")
-    # イベントループを抜けるには destroy.e(root) する.
-    c2 = TclTkCallback.new(ip, proc{destroy.e(root)})
-    b2 = TclTkWidget.new(ip, root, button, "-text exit -command", c2)
-    place.e(b2, "-x 0 -rely 0.3 -relwidth 1 -relheight 0.1")
-
-    #### イベントのバインド
-    # script の追加 (bind tag sequence +script) は今のところできない.
-    # (イテレータ変数の設定がうまくいかない.)
-
-    # 基本的にはウィジェットに対するコールバックと同じ.
-    c3 = TclTkCallback.new(ip, proc{print("q pressed\n"); destroy.e(root)})
-    bind.e(root, "q", c3)
-    # bind コマンドで % 置換によりパラメータを受け取りたいときは,
-    # proc{} の後ろに文字列で指定すると,
-    # 置換結果をイテレータ変数を通して受け取ることができる.
-    # ただし proc{} の後ろの文字列は,
-    # bind コマンドに与えるコールバック以外で指定してはいけない.
-    c4 = TclTkCallback.new(ip, proc{|i| print("#{i} pressed\n")}, "%A")
-    bind.e(root, "x", c4)
-    # TclTkCallback を GC の対象にしたければ,
-    # dcb() (または deletecallbackkeys()) する必要がある.
-    cb = [c1, c2, c3, c4]
-    c5 = TclTkCallback.new(ip, proc{|w| TclTk.dcb(cb, root, w)}, "%W")
-    bind.e(root, "<Destroy>", c5)
-    cb.push(c5)
-
-    #### tcl/tk のイメージに対応するオブジェクト(TclTkImage)の操作
-
-    # データを指定して生成する.
-    i1 = TclTkImage.new(ip, "photo", "-file maru.gif")
-    # ラベルに張り付けてみる.
-    l3 = TclTkWidget.new(ip, root, label, "-relief raised -image", i1)
-    place.e(l3, "-x 0 -rely 0.4 -relwidth 0.2 -relheight 0.2")
-    # 空のイメージを生成して後で操作する.
-    i2 = TclTkImage.new(ip, "photo")
-    # イメージを操作する.
-    i2.e("copy", i1)
-    i2.e("configure -gamma 0.5")
-    l4 = TclTkWidget.new(ip, root, label, "-relief raised -image", i2)
-    place.e(l4, "-relx 0.2 -rely 0.4 -relwidth 0.2 -relheight 0.2")
-
-    ####
-  end
-
-  # サンプルのためのウィジェットを生成する.
-  def sample(ip, parent)
-    bind, button, destroy, grid, toplevel, wm = ip.commands().values_at(
-      "bind", "button", "destroy", "grid", "toplevel", "wm")
-
-    ## toplevel
-
-    # 新しいウインドウを開くには, toplevel を使う.
-    t1 = TclTkWidget.new(ip, parent, toplevel)
-    # タイトルを付けておく
-    wm.e("title", t1, "sample")
-
-    # ウィジェットが破壊されたとき, コールバックが GC の対象になるようにする.
-    cb = []
-    cb.push(c = TclTkCallback.new(ip, proc{|w| TclTk.dcb(cb, t1, w)}, "%W"))
-    bind.e(t1, "<Destroy>", c)
-
-    # ボタンの生成.
-    wid = []
-    # toplevel ウィジェットを破壊するには destroy する.
-    cb.push(c = TclTkCallback.new(ip, proc{destroy.e(t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text close -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_label(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text label -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_button(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text button -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_checkbutton(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text checkbutton -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_radiobutton(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text radiobutton -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_scale(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text scale -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_entry(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text entry -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_text(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text text -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_raise(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text raise/lower -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_modal(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text message/modal -command",
-      c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_menu(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text menu -command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_listbox(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text listbox/scrollbar",
-      "-command", c))
-    cb.push(c = TclTkCallback.new(ip, proc{test_canvas(ip, t1)}))
-    wid.push(TclTkWidget.new(ip, t1, button, "-text canvas -command", c))
-
-    # grid で表示する.
-    ro = co = 0
-    wid.each{|w|
-      grid.e(w, "-row", ro, "-column", co, "-sticky news")
-      ro += 1
-      if ro == 7
-        ro = 0
-        co += 1
-      end
-    }
-  end
-
-  # inittoplevel(ip, parent, title)
-  #   以下の処理をまとめて行う.
-  #       1. toplevel ウィジェットを作成する.
-  #       2. コールバックを登録する配列を用意し, toplevel ウィジェットの
-  #         <Destroy> イベントにコールバックを削除する手続きを登録する.
-  #       3. クローズボタンを作る.
-  #     作成した toplevel ウィジェット, クローズボタン, コールバック登録用変数
-  #     を返す.
-  #   ip: インタプリタ
-  #   parent: 親ウィジェット
-  #   title: toplevel ウィジェットのウインドウのタイトル
-  def inittoplevel(ip, parent, title)
-    bind, button, destroy, toplevel, wm = ip.commands().values_at(
-      "bind", "button", "destroy", "toplevel", "wm")
-
-    # 新しいウインドウを開くには, toplevel を使う.
-    t1 = TclTkWidget.new(ip, parent, toplevel)
-    # タイトルを付けておく
-    wm.e("title", t1, title)
-
-    # ウィジェットが破壊されたとき, コールバックが GC の対象になるようにする.
-    cb = []
-    cb.push(c = TclTkCallback.new(ip, proc{|w| TclTk.dcb(cb, t1, w)}, "%W"))
-    bind.e(t1, "<Destroy>", c)
-    # close ボタンを作っておく.
-    # toplevel ウィジェットを破壊するには destroy する.
-    cb.push(c = TclTkCallback.new(ip, proc{destroy.e(t1)}))
-    b1 = TclTkWidget.new(ip, t1, button, "-text close -command", c)
-
-    return t1, b1, cb
-  end
-
-  # label のサンプル.
-  def test_label(ip, parent)
-    button, global, label, pack = ip.commands().values_at(
-      "button", "global", "label", "pack")
-    t1, b1, cb = inittoplevel(ip, parent, "label")
-
-    ## label
-
-    # いろいろな形のラベル.
-    l1 = TclTkWidget.new(ip, t1, label, "-text {default(flat)}")
-    l2 = TclTkWidget.new(ip, t1, label, "-text raised -relief raised")
-    l3 = TclTkWidget.new(ip, t1, label, "-text sunken -relief sunken")
-    l4 = TclTkWidget.new(ip, t1, label, "-text groove -relief groove")
-    l5 = TclTkWidget.new(ip, t1, label, "-text ridge -relief ridge")
-    l6 = TclTkWidget.new(ip, t1, label, "-bitmap error")
-    l7 = TclTkWidget.new(ip, t1, label, "-bitmap questhead")
-
-    # pack しても表示される.
-    pack.e(b1, l1, l2, l3, l4, l5, l6, l7, "-pady 3")
-
-    ## -textvariable
-
-    # tcltk ライブラリの実装では, コールバックは tcl/tk の``手続き''を通して
-    # 呼ばれる. したがって, コールバックの中で(大域)変数にアクセスするときは,
-    # global する必要がある.
-    # global する前に変数に値を設定してしまうとエラーになるので,
-    # tcl/tk における表現形だけ生成して, 実際に値を設定しないように,
-    # 2 番目の引数には nil を与える.
-    v1 = TclTkVariable.new(ip, nil)
-    global.e(v1)
-    v1.set(100)
-    # -textvariable で変数を設定する.
-    l6 = TclTkWidget.new(ip, t1, label, "-textvariable", v1)
-    # コールバックの中から変数を操作する.
-    cb.push(c = TclTkCallback.new(ip, proc{
-      global.e(v1); v1.set(v1.get().to_i + 10)}))
-    b2 = TclTkWidget.new(ip, t1, button, "-text +10 -command", c)
-    cb.push(c = TclTkCallback.new(ip, proc{
-      global.e(v1); v1.set(v1.get().to_i - 10)}))
-    b3 = TclTkWidget.new(ip, t1, button, "-text -10 -command", c)
-    pack.e(l6, b2, b3)
-  end
-
-  # button のサンプル.
-  def test_button(ip, parent)
-    button, pack = ip.commands().values_at("button", "pack")
-    t1, b1, cb = inittoplevel(ip, parent, "button")
-
-    ## button
-
-    # コールバック内で参照する変数は先に宣言しておかなければならない.
-    b3 = b4 = nil
-    cb.push(c = TclTkCallback.new(ip, proc{b3.e("flash"); b4.e("flash")}))
-    b2 = TclTkWidget.new(ip, t1, button, "-text flash -command", c)
-    cb.push(c = TclTkCallback.new(ip, proc{b2.e("configure -state normal")}))
-    b3 = TclTkWidget.new(ip, t1, button, "-text normal -command", c)
-    cb.push(c = TclTkCallback.new(ip, proc{b2.e("configure -state disabled")}))
-    b4 = TclTkWidget.new(ip, t1, button, "-text disable -command", c)
-    pack.e(b1, b2, b3, b4)
-  end
-
-  # checkbutton のサンプル.
-  def test_checkbutton(ip, parent)
-    checkbutton, global, pack = ip.commands().values_at(
-      "checkbutton", "global", "pack")
-    t1, b1, cb = inittoplevel(ip, parent, "checkbutton")
-
-    ## checkbutton
-
-    v1 = TclTkVariable.new(ip, nil)
-    global.e(v1)
-    # -variable で変数を設定する.
-    ch1 = TclTkWidget.new(ip, t1, checkbutton, "-onvalue on -offvalue off",
-      "-textvariable", v1, "-variable", v1)
-    pack.e(b1, ch1)
-  end
-
-  # radiobutton のサンプル.
-  def test_radiobutton(ip, parent)
-    global, label, pack, radiobutton = ip.commands().values_at(
-      "global", "label", "pack", "radiobutton")
-    t1, b1, cb = inittoplevel(ip, parent, "radiobutton")
-
-    ## radiobutton
-
-    v1 = TclTkVariable.new(ip, nil)
-    global.e(v1)
-    # ヌルストリングは "{}" で指定する.
-    v1.set("{}")
-    l1 = TclTkWidget.new(ip, t1, label, "-textvariable", v1)
-    # -variable で同じ変数を指定すると同じグループになる.
-    ra1 = TclTkWidget.new(ip, t1, radiobutton,
-      "-text radio1 -value r1 -variable", v1)
-    ra2 = TclTkWidget.new(ip, t1, radiobutton,
-      "-text radio2 -value r2 -variable", v1)
-    cb.push(c = TclTkCallback.new(ip, proc{global.e(v1); v1.set("{}")}))
-    ra3 = TclTkWidget.new(ip, t1, radiobutton,
-      "-text clear -value r3 -variable", v1, "-command", c)
-    pack.e(b1, l1, ra1, ra2, ra3)
-  end
-
-  # scale のサンプル.
-  def test_scale(ip, parent)
-    global, pack, scale = ip.commands().values_at(
-      "global", "pack", "scale")
-    t1, b1, cb = inittoplevel(ip, parent, "scale")
-
-    ## scale
-
-    v1 = TclTkVariable.new(ip, nil)
-    global.e(v1)
-    v1.set(219)
-    # コールバック内で参照する変数は先に宣言しておかなければならない.
-    sca1 = nil
-    cb.push(c = TclTkCallback.new(ip, proc{global.e(v1); v = v1.get();
-      sca1.e("configure -background", format("#%02x%02x%02x", v, v, v))}))
-    sca1 = TclTkWidget.new(ip, t1, scale,
-      "-label scale -orient h -from 0 -to 255 -variable", v1, "-command", c)
-    pack.e(b1, sca1)
-  end
-
-  # entry のサンプル.
-  def test_entry(ip, parent)
-    button, entry, global, pack = ip.commands().values_at(
-      "button", "entry", "global", "pack")
-    t1, b1, cb = inittoplevel(ip, parent, "entry")
-
-    ## entry
-
-    v1 = TclTkVariable.new(ip, nil)
-    global.e(v1)
-    # ヌルストリングは "{}" で指定する.
-    v1.set("{}")
-    en1 = TclTkWidget.new(ip, t1, entry, "-textvariable", v1)
-    cb.push(c = TclTkCallback.new(ip, proc{
-      global.e(v1); print(v1.get(), "\n"); v1.set("{}")}))
-    b2 = TclTkWidget.new(ip, t1, button, "-text print -command", c)
-    pack.e(b1, en1, b2)
-  end
-
-  # text のサンプル.
-  def test_text(ip, parent)
-    button, pack, text = ip.commands().values_at(
-      "button", "pack", "text")
-    t1, b1, cb = inittoplevel(ip, parent, "text")
-
-    ## text
-
-    te1 = TclTkWidget.new(ip, t1, text)
-    cb.push(c = TclTkCallback.new(ip, proc{
-      # 1 行目の 0 文字目から最後までを表示し, 削除する.
-      print(te1.e("get 1.0 end")); te1.e("delete 1.0 end")}))
-    b2 = TclTkWidget.new(ip, t1, button, "-text print -command", c)
-    pack.e(b1, te1, b2)
-  end
-
-  # raise/lower のサンプル.
-  def test_raise(ip, parent)
-    button, frame, lower, pack, raise = ip.commands().values_at(
-      "button", "frame", "lower", "pack", "raise")
-    t1, b1, cb = inittoplevel(ip, parent, "raise/lower")
-
-    ## raise/lower
-
-    # button を隠すテストのために, frame を使う.
-    f1 = TclTkWidget.new(ip, t1, frame)
-    # コールバック内で参照する変数は先に宣言しておかなければならない.
-    b2 = nil
-    cb.push(c = TclTkCallback.new(ip, proc{raise.e(f1, b2)}))
-    b2 = TclTkWidget.new(ip, t1, button, "-text raise -command", c)
-    cb.push(c = TclTkCallback.new(ip, proc{lower.e(f1, b2)}))
-    b3 = TclTkWidget.new(ip, t1, button, "-text lower -command", c)
-    lower.e(f1, b3)
-
-    pack.e(b2, b3, "-in", f1)
-    pack.e(b1, f1)
-  end
-
-  # modal なウィジェットのサンプル.
-  def test_modal(ip, parent)
-    button, frame, message, pack, tk_chooseColor, tk_getOpenFile,
-      tk_messageBox = ip.commands().values_at(
-      "button", "frame", "message", "pack", "tk_chooseColor",
-      "tk_getOpenFile", "tk_messageBox")
-    # 最初に load されていないライブラリは ip.commands() に存在しないので,
-    # TclTkLibCommand を生成する必要がある.
-    tk_dialog = TclTkLibCommand.new(ip, "tk_dialog")
-    t1, b1, cb = inittoplevel(ip, parent, "message/modal")
-
-    ## message
-
-    mes = "これは message ウィジェットのテストです."
-    mes += "以下は modal なウィジェットのテストです."
-    me1 = TclTkWidget.new(ip, t1, message, "-text {#{mes}}")
-
-    ## modal
-
-    # tk_messageBox
-    cb.push(c = TclTkCallback.new(ip, proc{
-      print tk_messageBox.e("-type yesnocancel -message messageBox",
-      "-icon error -default cancel -title messageBox"), "\n"}))
-    b2 = TclTkWidget.new(ip, t1, button, "-text messageBox -command", c)
-    # tk_dialog
-    cb.push(c = TclTkCallback.new(ip, proc{
-      # ウィジェット名を生成するためにダミーの frame を生成.
-      print tk_dialog.e(TclTkWidget.new(ip, t1, frame),
-      "dialog dialog error 2 yes no cancel"), "\n"}))
-    b3 = TclTkWidget.new(ip, t1, button, "-text dialog -command", c)
-    # tk_chooseColor
-    cb.push(c = TclTkCallback.new(ip, proc{
-      print tk_chooseColor.e("-title chooseColor"), "\n"}))
-    b4 = TclTkWidget.new(ip, t1, button, "-text chooseColor -command", c)
-    # tk_getOpenFile
-    cb.push(c = TclTkCallback.new(ip, proc{
-      print tk_getOpenFile.e("-defaultextension .rb",
-      "-filetypes {{{Ruby Script} {.rb}} {{All Files} {*}}}",
-      "-title getOpenFile"), "\n"}))
-    b5 = TclTkWidget.new(ip, t1, button, "-text getOpenFile -command", c)
-
-    pack.e(b1, me1, b2, b3, b4, b5)
-  end
-
-  # menu のサンプル.
-  def test_menu(ip, parent)
-    global, menu, menubutton, pack = ip.commands().values_at(
-      "global", "menu", "menubutton", "pack")
-    tk_optionMenu = TclTkLibCommand.new(ip, "tk_optionMenu")
-    t1, b1, cb = inittoplevel(ip, parent, "menu")
-
-    ## menu
-
-    # menubutton を生成する.
-    mb1 = TclTkWidget.new(ip, t1, menubutton, "-text menu")
-    # menu を生成する.
-    me1 = TclTkWidget.new(ip, mb1, menu)
-    # mb1 から me1 が起動されるようにする.
-    mb1.e("configure -menu", me1)
-
-    # cascade で起動される menu を生成する.
-    me11 = TclTkWidget.new(ip, me1, menu)
-    # radiobutton のサンプル.
-    v1 = TclTkVariable.new(ip, nil); global.e(v1); v1.set("r1")
-    me11.e("add radiobutton -label radio1 -value r1 -variable", v1)
-    me11.e("add radiobutton -label radio2 -value r2 -variable", v1)
-    me11.e("add radiobutton -label radio3 -value r3 -variable", v1)
-    # cascade により mb11 が起動されるようにする.
-    me1.e("add cascade -label cascade -menu", me11)
-
-    # checkbutton のサンプル.
-    v2 = TclTkVariable.new(ip, nil); global.e(v2); v2.set("none")
-    me1.e("add checkbutton -label check -variable", v2)
-    # separator のサンプル.
-    me1.e("add separator")
-    # command のサンプル.
-    v3 = nil
-    cb.push(c = TclTkCallback.new(ip, proc{
-      global.e(v1, v2, v3); print "v1: ", v1.get(), ", v2: ", v2.get(),
-      ", v3: ", v3.get(), "\n"}))
-    me1.e("add command -label print -command", c)
-
-    ## tk_optionMenu
-
-    v3 = TclTkVariable.new(ip, nil); global.e(v3); v3.set("opt2")
-    om1 = TclTkWidget.new(ip, t1, tk_optionMenu, v3, "opt1 opt2 opt3 opt4")
-
-    pack.e(b1, mb1, om1, "-side left")
-  end
-
-  # listbox のサンプル.
-  def test_listbox(ip, parent)
-    clipboard, frame, grid, listbox, lower, menu, menubutton, pack, scrollbar,
-      selection = ip.commands().values_at(
-      "clipboard", "frame", "grid", "listbox", "lower", "menu", "menubutton",
-      "pack", "scrollbar", "selection")
-    t1, b1, cb = inittoplevel(ip, parent, "listbox")
-
-    ## listbox/scrollbar
-
-    f1 = TclTkWidget.new(ip, t1, frame)
-    # コールバック内で参照する変数は先に宣言しておかなければならない.
-    li1 = sc1 = sc2 = nil
-    # 実行時に, 後ろにパラメータがつくコールバックは,
-    # イテレータ変数でそのパラメータを受け取ることができる.
-    # (複数のパラメータはひとつの文字列にまとめられる.)
-    cb.push(c1 = TclTkCallback.new(ip, proc{|i| li1.e("xview", i)}))
-    cb.push(c2 = TclTkCallback.new(ip, proc{|i| li1.e("yview", i)}))
-    cb.push(c3 = TclTkCallback.new(ip, proc{|i| sc1.e("set", i)}))
-    cb.push(c4 = TclTkCallback.new(ip, proc{|i| sc2.e("set", i)}))
-    # listbox
-    li1 = TclTkWidget.new(ip, f1, listbox,
-      "-xscrollcommand", c3, "-yscrollcommand", c4,
-      "-selectmode extended -exportselection true")
-    for i in 1..20
-      li1.e("insert end {line #{i} line #{i} line #{i} line #{i} line #{i}}")
-    end
-    # scrollbar
-    sc1 = TclTkWidget.new(ip, f1, scrollbar, "-orient horizontal -command", c1)
-    sc2 = TclTkWidget.new(ip, f1, scrollbar, "-orient vertical -command", c2)
-
-    ## selection/clipboard
-
-    mb1 = TclTkWidget.new(ip, t1, menubutton, "-text edit")
-    me1 = TclTkWidget.new(ip, mb1, menu)
-    mb1.e("configure -menu", me1)
-    cb.push(c = TclTkCallback.new(ip, proc{
-      # clipboard をクリア.
-      clipboard.e("clear")
-      # selection から文字列を読み込み clipboard に追加する.
-      clipboard.e("append {#{selection.e('get')}}")}))
-    me1.e("add command -label {selection -> clipboard} -command",c)
-    cb.push(c = TclTkCallback.new(ip, proc{
-      # li1 をクリア.
-      li1.e("delete 0 end")
-      # clipboard から文字列を取り出し, 1 行ずつ
-      selection.e("get -selection CLIPBOARD").split(/\n/).each{|line|
-        # li1 に挿入する.
-        li1.e("insert end {#{line}}")}}))
-    me1.e("add command -label {clipboard -> listbox} -command",c)
-
-    grid.e(li1, "-row 0 -column 0 -sticky news")
-    grid.e(sc1, "-row 1 -column 0 -sticky ew")
-    grid.e(sc2, "-row 0 -column 1 -sticky ns")
-    grid.e("rowconfigure", f1, "0 -weight 100")
-    grid.e("columnconfigure", f1, "0 -weight 100")
-    f2 = TclTkWidget.new(ip, t1, frame)
-    lower.e(f2, b1)
-    pack.e(b1, mb1, "-in", f2, "-side left")
-    pack.e(f2, f1)
-  end
-
-  # canvas のサンプル.
-  def test_canvas(ip, parent)
-    canvas, lower, pack = ip.commands().values_at("canvas", "lower", "pack")
-    t1, b1, cb = inittoplevel(ip, parent, "canvas")
-
-    ## canvas
-
-    ca1 = TclTkWidget.new(ip, t1, canvas, "-width 400 -height 300")
-    lower.e(ca1, b1)
-    # rectangle を作る.
-    idr = ca1.e("create rectangle 10 10 20 20")
-    # oval を作る.
-    ca1.e("create oval 60 10 100 50")
-    # polygon を作る.
-    ca1.e("create polygon 110 10 110 30 140 10")
-    # line を作る.
-    ca1.e("create line 150 10 150 30 190 10")
-    # arc を作る.
-    ca1.e("create arc 200 10 250 50 -start 0 -extent 90 -style pieslice")
-    # i1 は本当は, どこかで破壊しなければならないが, 面倒なので放ってある.
-    i1 = TclTkImage.new(ip, "photo", "-file maru.gif")
-    # image を作る.
-    ca1.e("create image 100 100 -image", i1)
-    # bitmap を作る.
-    ca1.e("create bitmap 260 50 -bitmap questhead")
-    # text を作る.
-    ca1.e("create text 320 50 -text {drag rectangle}")
-    # window を作る(クローズボタン).
-    ca1.e("create window 200 200 -window", b1)
-
-    # bind により rectangle を drag できるようにする.
-    cb.push(c = TclTkCallback.new(ip, proc{|i|
-      # i に x と y を受け取るので, 取り出す.
-      x, y = i.split(/ /); x = x.to_f; y = y.to_f
-      # 座標を変更する.
-      ca1.e("coords current #{x - 5} #{y - 5} #{x + 5} #{y + 5}")},
-      # x, y 座標を空白で区切ったものをイテレータ変数へ渡すように指定.
-      "%x %y"))
-    # rectangle に bind する.
-    ca1.e("bind", idr, "<B1-Motion>", c)
-
-    pack.e(ca1)
-  end
-end
-
-# test driver
-
-if ARGV.size == 0
-  print "#{$0} n で, n 個のインタプリタを起動します.\n"
-  n = 1
-else
-  n = ARGV[0].to_i
-end
-
-print "start\n"
-ip = []
-
-# インタプリタ, ウィジェット等の生成.
-for i in 1 .. n
-  ip.push(Test1.new())
-end
-
-# 用意ができたらイベントループに入る.
-TclTk.mainloop()
-print "exit from mainloop\n"
-
-# インタプリタが GC されるかのテスト.
-ip = []
-print "GC.start\n" if $DEBUG
-GC.start() if $DEBUG
-print "end\n"
-
-exit
-
-# end
diff --git a/ext/tk/sample/tcltklib/sample2.rb b/ext/tk/sample/tcltklib/sample2.rb
deleted file mode 100644
index 444bb1eef7..0000000000
--- a/ext/tk/sample/tcltklib/sample2.rb
+++ /dev/null
@@ -1,451 +0,0 @@
-#!/usr/local/bin/ruby
-#----------------------> pretty simple othello game <-----------------------
-# othello.rb
-#
-# version 0.3
-# maeda shugo (shuto@po.aianet.ne.jp)
-#---------------------------------------------------------------------------
-
-#       Sep. 17, 1997   modified by Y. Shigehiro for tcltk library
-#          maeda shugo (shugo@po.aianet.ne.jp) 氏による
-#          (ruby/tk で書かれていた) ruby のサンプルプログラム
-#               http://www.aianet.or.jp/~shugo/ruby/othello.rb.gz
-#          を tcltk ライブラリを使うように, 機械的に変更してみました.
-#
-#          なるべくオリジナルと同じになるようにしてあります.
-
-require "observer"
-require "tcltk"
-$ip = TclTkInterpreter.new()
-$root = $ip.rootwidget()
-$button, $canvas, $checkbutton, $frame, $label, $pack, $update, $wm =
-   $ip.commands().values_at(
-   "button", "canvas", "checkbutton", "frame", "label", "pack", "update", "wm")
-
-class Othello
-   
-   EMPTY = 0
-   BLACK = 1
-   WHITE = - BLACK
-   
-   attr :in_com_turn
-   attr :game_over
-   
-   class Board
-   
-      include Observable
-      
-      DIRECTIONS = [
-         [-1, -1], [-1, 0], [-1, 1],
-         [ 0, -1],          [ 0, 1],
-         [ 1, -1], [ 1, 0], [ 1, 1]
-      ]
-      
-      attr :com_disk, TRUE
-   
-      def initialize(othello)
-         @othello = othello
-         reset
-      end
-   
-      def notify_observers(*arg)
-         if @observer_peers != nil
-            super(*arg)
-         end
-      end
-      
-      def reset
-         @data = [
-            [EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY],
-            [EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY],
-            [EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY],
-            [EMPTY, EMPTY, EMPTY, WHITE, BLACK, EMPTY, EMPTY, EMPTY],
-            [EMPTY, EMPTY, EMPTY, BLACK, WHITE, EMPTY, EMPTY, EMPTY],
-            [EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY],
-            [EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY],
-            [EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY]
-         ]
-         changed
-         notify_observers
-      end
-      
-      def man_disk
-         return - @com_disk
-      end
-      
-      def other_disk(disk)
-         return - disk
-      end
-      
-      def get_disk(row, col)
-         return @data[row][col]
-      end
-      
-      def reverse_to(row, col, my_disk, dir_y, dir_x)
-         y = row
-         x = col
-         begin
-            y += dir_y
-            x += dir_x
-            if y < 0 || x < 0 || y > 7 || x > 7 ||
-                  @data[y][x] == EMPTY
-               return
-            end
-         end until @data[y][x] == my_disk
-         begin
-            @data[y][x] = my_disk
-            changed
-            notify_observers(y, x)
-            y -= dir_y
-            x -= dir_x
-         end until y == row && x == col
-      end
-      
-      def put_disk(row, col, disk)
-         @data[row][col] = disk
-         changed
-         notify_observers(row, col)
-         DIRECTIONS.each do |dir|
-            reverse_to(row, col, disk, *dir)
-         end
-      end
-      
-      def count_disk(disk)
-         num = 0
-         @data.each do |rows|
-            rows.each do |d|
-               if d == disk
-                  num += 1
-               end
-            end
-         end
-         return num
-      end
-      
-      def count_point_to(row, col, my_disk, dir_y, dir_x)
-         return 0 if @data[row][col] != EMPTY
-         count = 0
-         loop do
-            row += dir_y
-            col += dir_x
-            break if row < 0 || col < 0 || row > 7 || col > 7
-            case @data[row][col]
-            when my_disk
-               return count
-            when other_disk(my_disk)
-               count += 1
-            when EMPTY
-               break
-            end
-         end
-         return 0
-      end
-      
-      def count_point(row, col, my_disk)
-         count = 0
-         DIRECTIONS.each do |dir|
-            count += count_point_to(row, col, my_disk, *dir)
-         end
-         return count
-      end
-      
-      def corner?(row, col)
-         return (row == 0 && col == 0) ||
-            (row == 0 && col == 7) ||
-            (row == 7 && col == 0) ||
-            (row == 7 && col == 7)
-      end
-      
-      def search(my_disk)
-         max = 0
-         max_row = nil
-         max_col = nil
-         for row in 0 .. 7
-            for col in 0 .. 7
-               buf = count_point(row, col, my_disk)
-               if (corner?(row, col) && buf > 0) || max < buf
-                  max = buf
-                  max_row = row
-                  max_col = col
-               end
-            end
-         end
-         return max_row, max_col
-      end
-   end #--------------------------> class Board ends here
-   
-   class BoardView < TclTkWidget
-      
-      BACK_GROUND_COLOR = "DarkGreen"
-      HILIT_BG_COLOR = "green"
-      BORDER_COLOR = "black"
-      BLACK_COLOR = "black"
-      WHITE_COLOR = "white"
-      STOP_COLOR = "red"
-      
-      attr :left
-      attr :top
-      attr :right
-      attr :bottom
-      
-      class Square
-         
-         attr :oval, TRUE
-         attr :row
-         attr :col
-         
-         def initialize(view, row, col)
-            @view = view
-            @id = @view.e("create rectangle", 
-                          *(view.tk_rect(view.left + col,
-                                         view.top + row,
-                                         view.left + col + 1,
-                                         view.top + row + 1) \
-                            << "-fill #{BACK_GROUND_COLOR}") )
-            @row = row
-            @col = col
-            @view.e("itemconfigure", @id,
-              "-width 0.5m -outline #{BORDER_COLOR}")
-            @view.e("bind", @id, "<Any-Enter>", TclTkCallback.new($ip, proc{
-               if @oval == nil
-                  view.e("itemconfigure", @id, "-fill #{HILIT_BG_COLOR}")
-               end
-            }))
-            @view.e("bind", @id, "<Any-Leave>", TclTkCallback.new($ip, proc{
-               view.e("itemconfigure", @id, "-fill #{BACK_GROUND_COLOR}")
-            }))
-            @view.e("bind", @id, "<ButtonRelease-1>", TclTkCallback.new($ip,
-               proc{
-               view.click_square(self)
-            }))
-         end
-         
-         def blink(color)
-            @view.e("itemconfigure", @id, "-fill #{color}")
-            $update.e()
-            sleep(0.1)
-            @view.e("itemconfigure", @id, "-fill #{BACK_GROUND_COLOR}")
-         end
-      end #-----------------------> class Square ends here
-   
-      def initialize(othello, board)
-         super($ip, $root, $canvas)
-         @othello = othello
-         @board = board
-         @board.add_observer(self)
-         
-         @squares = Array.new(8)
-         for i in 0 .. 7
-            @squares[i] = Array.new(8)
-         end
-         @left = 1
-         @top = 0.5
-         @right = @left + 8
-         @bottom = @top + 8
-         
-         i = self.e("create rectangle", *tk_rect(@left, @top, @right, @bottom))
-         self.e("itemconfigure", i,
-            "-width 1m -outline #{BORDER_COLOR} -fill #{BACK_GROUND_COLOR}")
-
-         for row in 0 .. 7
-            for col in 0 .. 7
-               @squares[row][col] = Square.new(self, row, col)
-            end
-         end
-         
-         update
-      end
-      
-      def tk_rect(left, top, right, bottom)
-         return left.to_s + "c", top.to_s + "c",
-            right.to_s + "c", bottom.to_s + "c"
-      end
-      
-      def clear
-         each_square do |square|
-            if square.oval != nil
-               self.e("delete", square.oval)
-               square.oval = nil
-            end
-         end
-      end
-      
-      def draw_disk(row, col, disk)
-         if disk == EMPTY
-            if @squares[row][col].oval != nil
-               self.e("delete", @squares[row][col].oval)
-               @squares[row][col].oval = nil
-            end
-            return
-         end
-            
-         $update.e()
-         sleep(0.05)
-         oval = @squares[row][col].oval
-         if oval == nil
-            oval = self.e("create oval", *tk_rect(@left + col + 0.2,
-                                           @top + row + 0.2,
-                                           @left + col + 0.8,
-                                           @top + row + 0.8))
-            @squares[row][col].oval = oval
-         end
-         case disk
-         when BLACK
-            color = BLACK_COLOR
-         when WHITE
-            color = WHITE_COLOR
-         else
-            fail format("Unknown disk type: %d", disk)
-         end
-         self.e("itemconfigure", oval, "-outline #{color} -fill #{color}")
-      end
-      
-      def update(row = nil, col = nil)
-         if row && col
-            draw_disk(row, col, @board.get_disk(row, col))
-         else
-            each_square do |square|
-               draw_disk(square.row, square.col,
-                         @board.get_disk(square.row, square.col))
-            end
-         end
-         @othello.show_point
-      end
-      
-      def each_square
-         @squares.each do |rows|
-            rows.each do |square|
-               yield(square)
-            end
-         end
-      end
-      
-      def click_square(square)
-         if @othello.in_com_turn || @othello.game_over ||
-               @board.count_point(square.row,
-                                  square.col,
-                                  @board.man_disk) == 0
-            square.blink(STOP_COLOR)
-            return
-         end
-         @board.put_disk(square.row, square.col, @board.man_disk)
-         @othello.com_turn
-      end
-      
-      private :draw_disk
-      public :update
-   end #----------------------> class BoardView ends here
-   
-   def initialize
-      @msg_label = TclTkWidget.new($ip, $root, $label)
-      $pack.e(@msg_label)
-      
-      @board = Board.new(self)
-      @board_view = BoardView.new(self, @board)
-      #### added by Y. Shigehiro
-      ## board_view の大きさを設定する.
-      x1, y1, x2, y2 = @board_view.e("bbox all").split(/ /).collect{|i| i.to_f}
-      @board_view.e("configure -width", x2 - x1)
-      @board_view.e("configure -height", y2 - y1)
-      ## scrollregion を設定する.
-      @board_view.e("configure -scrollregion {", @board_view.e("bbox all"),
-         "}")
-      #### ここまで
-      $pack.e(@board_view, "-fill both -expand true")
-      
-      panel = TclTkWidget.new($ip, $root, $frame)
-      
-      @play_black = TclTkWidget.new($ip, panel, $checkbutton,
-        "-text {com is black} -command", TclTkCallback.new($ip, proc{
-         switch_side
-      }))
-      $pack.e(@play_black, "-side left")
-            
-      quit = TclTkWidget.new($ip, panel, $button, "-text Quit -command",
-         TclTkCallback.new($ip, proc{
-         exit
-      }))
-      $pack.e(quit, "-side right -fill x")
-      
-      reset = TclTkWidget.new($ip, panel, $button, "-text Reset -command",
-         TclTkCallback.new($ip, proc{
-         reset_game
-      }))
-      $pack.e(reset, "-side right -fill x")
-      
-      $pack.e(panel, "-side bottom -fill x")
-      
-#      root = Tk.root
-      $wm.e("title", $root, "Othello")
-      $wm.e("iconname", $root, "Othello")
-      
-      @board.com_disk = WHITE
-      @game_over = FALSE
-      
-      TclTk.mainloop
-   end
-   
-   def switch_side
-      if @in_com_turn
-         @play_black.e("toggle")
-      else
-         @board.com_disk = @board.man_disk
-         com_turn unless @game_over
-      end
-   end
-   
-   def reset_game
-      if @board.com_disk == BLACK
-         @board.com_disk = WHITE
-         @play_black.e("toggle")
-      end
-      @board_view.clear
-      @board.reset
-      $wm.e("title", $root, "Othello")
-      @game_over = FALSE
-   end
-      
-   def com_turn
-      @in_com_turn = TRUE
-      $update.e()
-      sleep(0.5)
-      begin
-         com_disk = @board.count_disk(@board.com_disk)
-         man_disk = @board.count_disk(@board.man_disk)
-         if @board.count_disk(EMPTY) == 0
-            if man_disk == com_disk
-               $wm.e("title", $root, "{Othello - Draw!}")
-            elsif man_disk > com_disk
-               $wm.e("title", $root, "{Othello - You Win!}")
-            else
-               $wm.e("title", $root, "{Othello - You Loose!}")
-            end
-            @game_over = TRUE
-            break
-         elsif com_disk == 0
-            $wm.e("title", $root, "{Othello - You Win!}")
-            @game_over = TRUE
-            break
-         elsif man_disk == 0
-            $wm.e("title", $root, "{Othello - You Loose!}")
-            @game_over = TRUE
-            break
-         end
-         row, col = @board.search(@board.com_disk)
-         break if row == nil || col == nil
-         @board.put_disk(row, col, @board.com_disk)
-      end while @board.search(@board.man_disk) == [nil, nil]
-      @in_com_turn = FALSE
-   end
-
-   def show_point
-      black = @board.count_disk(BLACK)
-      white = @board.count_disk(WHITE)
-      @msg_label.e("configure -text",
-         %Q/{#{format("BLACK: %.2d    WHITE: %.2d", black, white)}}/)
-   end
-end #----------------------> class Othello ends here
-
-Othello.new
-
-#----------------------------------------------> othello.rb ends here