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#
# text (basic facilities) widget demo (called by 'widget')
#

# toplevel widget ¤¬Â¸ºß¤¹¤ì¤Ðºï½ü¤¹¤ë
if defined?($text_demo) && $text_demo
  $text_demo.destroy 
  $text_demo = nil
end

# demo ÍѤΠtoplevel widget ¤òÀ¸À®
$text_demo = TkToplevel.new {|w|
  title("Text Demonstration - Basic Facilities")
  iconname("text")
  positionWindow(w)
}

# version check
if ((Tk::TK_VERSION.split('.').collect{|n| n.to_i} <=> [8,4]) < 0)
  undo_support = false
else
  undo_support = true
end

# frame À¸À®
TkFrame.new($text_demo) {|frame|
  TkButton.new(frame) {
    #text 'λ²ò'
    text 'ÊĤ¸¤ë'
    command proc{
      tmppath = $text_demo
      $text_demo = nil
      tmppath.destroy
    }
  }.pack('side'=>'left', 'expand'=>'yes')

  TkButton.new(frame) {
    text '¥³¡¼¥É»²¾È'
    command proc{showCode 'text'}
  }.pack('side'=>'left', 'expand'=>'yes')
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')

# text À¸À®
TkText.new($text_demo){|t|
  # À¸À®
  relief 'sunken'
  bd 2
  setgrid 1
  height 30
  TkScrollbar.new($text_demo) {|s|
    pack('side'=>'right', 'fill'=>'y')
    command proc{|*args| t.yview(*args)}
    t.yscrollcommand proc{|first,last| s.set first,last}
  }
  pack('expand'=>'yes', 'fill'=>'both')

  # ¥Æ¥­¥¹¥ÈÁÞÆþ
  insert('0.0', <<EOT)
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¤·¤«¤Ê¤«¤Ã¤¿¾ì¹ç¤Ï¡¢²þ¹Ô¤òºï½ü¤·¤Þ¤¹¡£#{
      if undo_support
        undo_text = "Control-z ¤ÏºÇ¸å¤Ë¹Ô¤Ã¤¿Êѹ¹¤Î¼è¤ê¾Ã¤·(undo)¤ò¹Ô¤¤¡¢"
        case $tk_platform['platform']
        when "unix", "macintosh"
          undo_text << "Control-Shift-z"
        else # 'windows'
          undo_text << "Control-y"
        end
        undo_text << "¤Ïundo¤·¤¿Êѹ¹¤ÎºÆŬÍÑ(redo)¤ò¹Ô¤¤¤Þ¤¹¡£"
      else
        ""
      end
}


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  set_insert('0.0')
}