--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Demo/tix/samples/Tree.py	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,80 @@
+# -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
+#
+# $Id: Tree.py 36560 2004-07-18 06:16:08Z tim_one $
+#
+# Tix Demostration Program
+#
+# This sample program is structured in such a way so that it can be
+# executed from the Tix demo program "tixwidgets.py": it must have a
+# procedure called "RunSample". It should also have the "if" statment
+# at the end of this file so that it can be run as a standalone
+# program.
+
+# This file demonstrates how to use the TixTree widget to display
+# dynamic hierachical data (the files in the Unix file system)
+#
+
+import Tix, os
+
+def RunSample(w):
+    top = Tix.Frame(w, relief=Tix.RAISED, bd=1)
+    tree = Tix.Tree(top, options='separator "/"')
+    tree.pack(expand=1, fill=Tix.BOTH, padx=10, pady=10, side=Tix.LEFT)
+    tree['opencmd'] = lambda dir=None, w=tree: opendir(w, dir)
+
+    # The / directory is added in the "open" mode. The user can open it
+    # and then browse its subdirectories ...
+    adddir(tree, "/")
+
+    box = Tix.ButtonBox(w, orientation=Tix.HORIZONTAL)
+    box.add('ok', text='Ok', underline=0, command=w.destroy, width=6)
+    box.add('cancel', text='Cancel', underline=0, command=w.destroy, width=6)
+    box.pack(side=Tix.BOTTOM, fill=Tix.X)
+    top.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)
+
+def adddir(tree, dir):
+    if dir == '/':
+        text = '/'
+    else:
+        text = os.path.basename(dir)
+    tree.hlist.add(dir, itemtype=Tix.IMAGETEXT, text=text,
+                   image=tree.tk.call('tix', 'getimage', 'folder'))
+    try:
+        os.listdir(dir)
+        tree.setmode(dir, 'open')
+    except os.error:
+        # No read permission ?
+        pass
+
+# This function is called whenever the user presses the (+) indicator or
+# double clicks on a directory whose mode is "open". It loads the files
+# inside that directory into the Tree widget.
+#
+# Note we didn't specify the closecmd option for the Tree widget, so it
+# performs the default action when the user presses the (-) indicator or
+# double clicks on a directory whose mode is "close": hide all of its child
+# entries
+def opendir(tree, dir):
+    entries = tree.hlist.info_children(dir)
+    if entries:
+        # We have already loaded this directory. Let's just
+        # show all the child entries
+        #
+        # Note: since we load the directory only once, it will not be
+        #       refreshed if the you add or remove files from this
+        #       directory.
+        #
+        for entry in entries:
+            tree.hlist.show_entry(entry)
+    files = os.listdir(dir)
+    for file in files:
+        if os.path.isdir(dir + '/' + file):
+            adddir(tree, dir + '/' + file)
+        else:
+            tree.hlist.add(dir + '/' + file, itemtype=Tix.IMAGETEXT, text=file,
+                           image=tree.tk.call('tix', 'getimage', 'file'))
+
+if __name__ == '__main__':
+    root = Tix.Tk()
+    RunSample(root)
+    root.mainloop()