* ext/tk/lib/tk.rb, ext/tk/lib/tk/text.rb,
ext/tk/lib/tkextlib/iwidgets/scrolledtext.rb: remove adhoc check
of Ruby's features (use existence of some classes instead of
comparing with RUBY_VERSION)
* ext/tk/lib/tk/root.rb, ext/tk/lib/tk/autoload.rb: make TkRoot
(Tk::Root) unswitchable
* ext/tk/lib/multi-tk.rb: partial bug fix (still not work!!)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15634 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
when exit from a recursive called eventloop
* ext/tk/lib/tk/timer.rb: new TkRTTimer class, which can works for a
realtime operation
* ext/tk/sample/tkrttimer.rb: sample of TkRTTimer class
* ext/tk/lib/tk/textmark.rb: move TkTextMark#+ and TkTextMark#- to
TkText::IndexModMethods
* ext/tk/lib/tk/text.rb: improve TkTextMark#+ and TkTextMark#-, and
add them to TkText::IndexModMethods module
* ext/tk/sample/tktextio.rb: add test part of "seek by text index
modifiers"
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8133 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/trunk@6630 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
