* ext/tk/, ext/tcltklib/: bug fix

* ext/tk/lib/tk.rb: better operation for SIGINT when processing callbacks.
* ext/tk/lib/tk/msgcat.rb: ditto.
* ext/tk/lib/tk/variable.rb: ditto.
* ext/tk/lib/tk/timer.rb: ditto.
* ext/tk/lib/tk/validation.rb: add Tk::ValidateConfigure.__def_validcmd()
  to define validatecommand methods easier
* ext/tk/lib/tk.rb (_genobj_for_tkwidget): support autoload Tk ext classes
* ext/tk/lib/tk/canvas.rb and so on: remove the parent widget type check
  for items (e.g. canvas items; depends on the class) to avoid some troubles
  on Tk extension widget class definition.
* ext/tk/lib/tkextlib/: add Iwidget and TkTable extension support
* ext/tk/sample/tkextlib/: add samples of Iwidget and TkTable


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6630 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ext/tk/lib/tkextlib/iwidgets/tabnotebook.rb

@@ -0,0 +1,154 @@
+#
+#  tkextlib/iwidgets/tabnotebook.rb
+#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
+#
+
+require 'tk'
+require 'tkextlib/iwidgets.rb'
+
+module Tk
+  module Iwidgets
+    class Tabnotebook < Tk::Itk::Widget
+    end
+  end
+end
+
+class Tk::Iwidgets::Tabnotebook
+  TkCommandNames = ['::iwidgets::tabnotebook'.freeze].freeze
+  WidgetClassName = 'Tabnotebook'.freeze
+  WidgetClassNames[WidgetClassName] = self
+
+  ####################################
+
+  include TkItemConfigMethod
+
+  def __item_cget_cmd(id)
+    [self.path, 'tabcget', id]
+  end
+  private :__item_cget_cmd
+
+  def __item_config_cmd(id)
+    [self.path, 'tabconfigure', id]
+  end
+  private :__item_config_cmd
+
+  def tagid(tagOrId)
+    if tagOrId.kind_of?(Tk::Itk::Component)
+      tagOrId.name
+    else
+      #_get_eval_string(tagOrId)
+      tagOrId
+    end
+  end
+
+  alias pagecget itemcget
+  alias pageconfigure itemconfigure
+  alias pageconfiginfo itemconfiginfo
+  alias current_pageconfiginfo current_itemconfiginfo
+
+  private :itemcget, :itemconfigure
+  private :itemconfiginfo, :current_itemconfiginfo
+
+  ####################################
+
+  def initialize(*args)
+    super(*args)
+    @tabset = self.component_widget('tabset')
+  end
+
+  def add(keys={})
+    window(tk_call(@path, 'add', *hash_kv(keys)))
+  end
+
+  def child_site_list
+    list(tk_call(@path, 'childsite'))
+  end
+
+  def child_site(idx)
+    window(tk_call(@path, 'childsite', index(idx)))
+  end
+
+  def delete(idx1, idx2=nil)
+    if idx2
+      tk_call(@path, 'delete', index(idx1), index(idx2))
+    else
+      tk_call(@path, 'delete', index(idx1))
+    end
+    self
+  end
+
+  def index(idx)
+    #number(tk_call(@path, 'index', tagid(idx)))
+    @tabset.index(tagid(idx))
+  end
+
+  def insert(idx, keys={})
+    window(tk_call(@path, 'insert', index(idx), *hash_kv(keys)))
+  end
+
+  def next
+    tk_call(@path, 'next')
+    self
+  end
+
+  def prev
+    tk_call(@path, 'prev')
+    self
+  end
+
+  def select(idx)
+    tk_call(@path, 'select', index(idx))
+    self
+  end
+
+  def scrollcommand(cmd=Proc.new)
+    configure_cmd 'scrollcommand', cmd
+    self
+  end
+  alias xscrollcommand scrollcommand
+  alias yscrollcommand scrollcommand
+
+  def xscrollbar(bar=nil)
+    if bar
+      @scrollbar = bar
+      @scrollbar.orient 'horizontal'
+      self.scrollcommand {|*arg| @scrollbar.set(*arg)}
+      @scrollbar.command {|*arg| self.xview(*arg)}
+      Tk.update  # avoid scrollbar trouble
+    end
+    @scrollbar
+  end
+  def yscrollbar(bar=nil)
+    if bar
+      @scrollbar = bar
+      @scrollbar.orient 'vertical'
+      self.scrollcommand {|*arg| @scrollbar.set(*arg)}
+      @scrollbar.command {|*arg| self.yview(*arg)}
+      Tk.update  # avoid scrollbar trouble
+    end
+    @scrollbar
+  end
+  alias scrollbar yscrollbar
+
+  def view(*index)
+    if index.size == 0
+      window(tk_send_without_enc('view'))
+    else
+      tk_send_without_enc('view', *index)
+      self
+    end
+  end
+  alias xview view
+  alias yview view
+
+  def view_moveto(*index)
+    view('moveto', *index)
+  end
+  alias xview_moveto view_moveto
+  alias yview_moveto view_moveto
+  def view_scroll(*index)
+    view('scroll', *index)
+  end
+  alias xview_scroll view_scroll
+  alias yview_scroll view_scroll
+end