ruby-****@sourc*****
ruby-****@sourc*****
2012年 8月 26日 (日) 05:03:22 JST
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REMOTE_ADDR = 70.49.49.99
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-treev-addrnhs
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@@ -263,6 +263,10 @@
Gtk.main
+The above program demonstrated how user selections are handled in tree view. If you look closely you will find Gtk::TreeSelection#set_select_function method with which we set the selection block. This code block is called before any node is selected or unselected, giving the programmer additional control over which nodes are selected and unselected. The select block should return true if the state of the node may be toggled, and false if the state of the node should be left unchanged.
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