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
94
95
96
97
98
99
100
|
# (C) Copyright 2004-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in 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!
"""
A simple demonstration of how to use the ImageEditor to add a graphic element
to a Traits UI View.
This example needs NumPy to show an example of a dynamically created image.
"""
# Imports:
from os.path import join, dirname
import numpy as np
from pyface.api import ArrayImage, Image, ImageResource
from traits.api import HasTraits, Str
from traitsui.api import View, VGroup, Item, ImageEditor
# Constants:
# The images folder is in the same folder as this file:
search_path = [dirname(__file__)]
# Define the demo class:
class Employee(HasTraits):
# Define the traits:
name = Str()
dept = Str()
email = Str()
picture = Image()
gradient = Image()
# Define the view:
view = View(
VGroup(
VGroup(
Item(
'name',
show_label=False,
editor=ImageEditor(
image=ImageResource('info', search_path=search_path)
),
)
),
VGroup(
Item('name'),
Item('dept'),
Item('email'),
Item(
'picture',
editor=ImageEditor(
scale=True,
preserve_aspect_ratio=True,
allow_upscaling=True,
),
springy=True,
),
Item(
'gradient',
editor=ImageEditor(
scale=True,
preserve_aspect_ratio=True,
allow_upscaling=True,
),
springy=True,
),
),
),
resizable=True,
)
# generate a 2D NumPy array of RGB values
gradient = np.empty(shape=(256, 256, 3), dtype='uint8')
gradient[:, :, 0] = np.arange(256).reshape(256, 1)
gradient[:, :, 1] = np.arange(256).reshape(1, 256)
gradient[:, :, 2] = np.arange(255, -1, -1).reshape(1, 256)
# Create the demo:
popup = Employee(
name='William Murchison',
dept='Receiving',
email='wmurchison@acme.com',
picture=ImageResource('python-logo', search_path=search_path),
gradient=ArrayImage(data=gradient),
)
# Run the demo (if invoked form the command line):
if __name__ == '__main__':
popup.configure_traits()
|
