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#------------------------------------------------------------------------------
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: Enthought, Inc.
# Description: <Enthought pyface package component>
#------------------------------------------------------------------------------
""" A file system tree. """
# Standard library imports.
from os import listdir
from os.path import basename, isdir, isfile, join
# Enthought library imports.
from enthought.pyface.tree.api import NodeManager, NodeType
class FileNode(NodeType):
""" Node type for files. """
###########################################################################
# 'NodeType' interface.
###########################################################################
def is_type_for(self, node):
""" Returns True if this node type recognizes a node. """
return isfile(node)
def allows_children(self, node):
""" Does the node allow children (ie. a folder vs a file). """
return False
def get_text(self, node):
""" Returns the label text for a node. """
return basename(node)
class FolderNode(NodeType):
""" Node type for folders. """
#########################################################################
# 'NodeType' interface.
#########################################################################
def is_type_for(self, node):
""" Returns True if this node type recognizes a node. """
return isdir(node)
def allows_children(self, node):
""" Does the node allow children (ie. a folder vs a file). """
return True
def has_children(self, node):
""" Returns True if a node has children, otherwise False. """
return len(listdir(node)) > 0
def get_children(self, node):
""" Returns the children of a node. """
return [join(node, filename) for filename in listdir(node)]
def get_text(self, node):
""" Returns the label text for a node. """
return basename(node)
# Add all types to the node manager.
node_manager = NodeManager()
node_manager.add_node_type(FileNode())
node_manager.add_node_type(FolderNode())
##### EOF #####################################################################
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