* renewal Ruby/Tk

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6237 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 30 insertions, 0 deletions

diff --git a/ext/tk/sample/propagate.rb b/ext/tk/sample/propagate.rb
new file mode 100644
index 0000000000..a6fbc9725a
--- /dev/null
+++ b/ext/tk/sample/propagate.rb
@@ -0,0 +1,30 @@
+#!/usr/bin/env ruby
+require 'tk'
+
+TkLabel.new(:text=>"Please click the bottom frame").pack
+
+f = TkFrame.new(:width=>400, :height=>100, :background=>'yellow', 
+		:relief=>'ridge', :borderwidth=>5).pack
+
+# TkPack.propagate(f, false) # <== important!!
+f.pack_propagate(false)      # <== important!!
+
+list = (1..3).collect{|n|
+  TkButton.new(f, :text=>"button#{'-X'*n}"){
+    command proc{
+      puts "button#{'-X'*n}"
+      self.unpack
+    }
+  }
+}
+
+list.unshift(nil)
+
+f.bind('1', proc{
+	 w = list.shift
+	 w.unpack if w
+	 list.push(w)
+	 list[0].pack(:expand=>true, :anchor=>:center) if list[0]
+       })
+
+Tk.mainloop