File: image_view.enaml

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python-enaml 0.19.0-1
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#------------------------------------------------------------------------------
# Copyright (c) 2013-2025, Nucleic Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file LICENSE, distributed with this software.
#------------------------------------------------------------------------------
""" An example of the `ImageView` widget.

This example shows how a PNG image (in an enaml Image object) can displayed.

<< autodoc-me >>
"""
import os
from pathlib import Path

from enaml.image import Image
from enaml.layout.api import vbox, hbox, spacer
from enaml.widgets.api import Window, Container, ComboBox, ImageView


def image_path(name):
    dirname = os.path.dirname(__file__)
    return os.path.join(dirname, 'images', name)


IMAGES = {
    'None': None,
    'Image A': Image(data=Path(image_path('img1.png')).read_bytes()),
    'Image B': Image(data=Path(image_path('img2.png')).read_bytes()),
    'Image C': Image(data=Path(image_path('img3.png')).read_bytes()),
}


enamldef Main(Window):
    Container:
        constraints = [
            vbox(hbox(cbox, spacer), img),
        ]
        ComboBox: cbox:
            items = sorted(IMAGES.keys())
            index = 0
        ImageView: img:
            hug_width = "strong"
            image << IMAGES[cbox.selected_item]