Current File : //usr/lib64/python2.7/Demo/tix/samples/Tree.py
# -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
#
# $Id$
#
# Tix Demonstration 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()
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