1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
#------------------------------------------------------------------------------
# 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>
#------------------------------------------------------------------------------
""" Node tree example. """
# Standard library imports.
import os, sys
# Put the Enthought library on the Python path.
sys.path.append(os.path.abspath(r'..\..\..'))
# Enthought library imports.
from enthought.pyface.api import GUI, PythonShell, SplitApplicationWindow
from enthought.traits.api import Float, Str
# Local imports.
from file_node_tree import node_manager
from enthought.pyface.tree.api import NodeTree, NodeTreeModel
class MainWindow(SplitApplicationWindow):
""" The main application window. """
#### 'SplitApplicationWindow' interface ###################################
# The ratio of the size of the left/top pane to the right/bottom pane.
ratio = Float(0.3)
# The direction in which the window is split.
direction = Str('vertical')
###########################################################################
# Protected 'SplitApplicationWindow' interface.
###########################################################################
def _create_lhs(self, parent):
""" Creates the left hand side or top depending on the split. """
model = NodeTreeModel(node_manager=node_manager)
model.root = os.path.abspath(os.curdir)
self._tree = NodeTree(parent, model=model)
self._tree.on_trait_change(self._on_tree_anytrait_changed)
return self._tree.control
def _create_rhs(self, parent):
""" Creates the right hand side or bottom depending on the split. """
self._python_shell = PythonShell(parent)
self._python_shell.bind('widget', self._tree)
self._python_shell.bind('w', self._tree)
return self._python_shell.control
###########################################################################
# Private interface.
###########################################################################
#### Trait event handlers #################################################
def _on_tree_anytrait_changed(self, tree, trait_name, old, new):
""" Called when any trait on the tree has changed. """
print 'trait', trait_name, 'value', new
return
# Application entry point.
if __name__ == '__main__':
# Create the GUI (this does NOT start the GUI event loop).
gui = GUI()
# Create and open the main window.
window = MainWindow()
window.open()
# Start the GUI event loop.
gui.start_event_loop()
##### EOF #####################################################################
|
