* ext/tk/lib/tk.rb: add __val2ruby_optkeys and __ruby2val_optkeys to
help to convert option values between ruby and tcl.
* ext/tk/lib/tk/itemconfig.rb: add __item_val2ruby_optkeys and
__item_ruby2val_optkeys to help to convert option values between
ruby and tcl.
* ext/tk/lib/tk/radiobutton.rb: use __ruby2val_optkeys for 'variable'
option (for the reason of backward compatibility).
* ext/tk/lib/tk/composite.rb: clarify the arguments of super().
* ext/tk/lib/tk/spinbox.rb: ditto.
* ext/tk/lib/tk/text.rb: ditto.
* ext/tk/lib/tk/validation.rb: ditto.
* ext/tk/lib/tkextlib/*: support to treat tkvariable-type
configure options.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@8957 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 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
