* ext/tk/lib : bug fix

* ext/tk/lib/tkextlib/itcl : add [incr Tcl] support
* ext/tk/lib/tkextlib/itk  : add [incr Tk] support
* ext/tk/lib/tkextlib/iwidgets : midway point of [incr Widgets] support
* ext/tk/sample/tkextlib/iwidgets : very simple examples of [incr Widgets]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6602 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

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

@@ -0,0 +1,106 @@
+#
+#  tkextlib/iwidgets/checkbox.rb
+#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
+#
+
+require 'tk'
+require 'tkextlib/iwidgets.rb'
+
+module Tk
+  module Iwidgets
+    class  Checkbox < Tk::Iwidgets::Labeledframe
+    end
+  end
+end
+
+class Tk::Iwidgets::Checkbox
+  TkCommandNames = ['::iwidgets::checkbox'.freeze].freeze
+  WidgetClassName = 'Checkbox'.freeze
+  WidgetClassNames[WidgetClassName] = self
+
+  ####################################
+
+  include TkItemConfigMethod
+
+  def __item_cget_cmd(id)
+    [self.path, 'buttoncget', id]
+  end
+  private :__item_cget_cmd
+
+  def __item_config_cmd(id)
+    [self.path, 'buttonconfigure', id]
+  end
+  private :__item_config_cmd
+
+  def tagid(tagOrId)
+    if tagOrId.kind_of?(Tk::Itk::Component)
+      tagOrId.name
+    else
+      _get_eval_string(tagOrId)
+    end
+  end
+
+  alias buttoncget itemcget
+  alias buttonconfigure itemconfigure
+  alias buttonconfiginfo itemconfiginfo
+  alias current_buttonconfiginfo current_itemconfiginfo
+
+  private :itemcget, :itemconfigure
+  private :itemconfiginfo, :current_itemconfiginfo
+
+  ####################################
+
+  def add(tag=nil, keys={})
+    if tag.kind_of?(Hash)
+      keys = tag
+      tag = nil
+    end
+    unless tag
+      tag = Tk::Itk::Component.new(self)
+    end
+    tk_call(@path, 'add', tagid(tag), *hash_kv(keys))
+    tag
+  end
+
+  def delete(idx)
+    tk_call(@path, 'delete', index(idx))
+    self
+  end
+
+  def deselect(idx)
+    tk_call(@path, 'deselect', index(idx))
+    self
+  end
+
+  def flash(idx)
+    tk_call(@path, 'flash', index(idx))
+    self
+  end
+
+  def get(idx)
+    simplelist(tk_call(@path, 'get', index(idx))).collect{|id|
+      Tk::Itk::Component.id2obj(id)
+    }
+  end
+
+  def index(idx)
+    number(tk_call(@path, 'index', tagid(idx)))
+  end
+
+  def insert(idx, tag=nil, keys={})
+    if tag.kind_of?(Hash)
+      keys = tag
+      tag = nil
+    end
+    unless tag
+      tag = Tk::Itk::Component.new(self)
+    end
+    tk_call(@path, 'insert', index(idx), tagid(tag), *hash_kv(keys))
+    tag
+  end
+
+  def select(idx)
+    tk_call(@path, 'select', index(idx))
+    self
+  end
+end