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# (C) Copyright 2005-2023 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!
from traits.api import Array, HasStrictTraits, provides
from pyface.i_image import IImage
from pyface.util.image_helpers import (
array_to_image, image_to_bitmap, bitmap_to_icon, resize_image
)
#: Trait type for image arrays.
ImageArray = Array(shape=(None, None, (3, 4)), dtype='uint8')
@provides(IImage)
class ArrayImage(HasStrictTraits):
""" An IImage stored in an RGB(A) numpy array.
"""
# 'ArrayImage' interface ------------------------------------------------
#: The bytes of the image.
data = ImageArray()
# ------------------------------------------------------------------------
# 'IImage' interface.
# ------------------------------------------------------------------------
def create_image(self, size=None):
""" Creates a toolkit-specific image for this array.
Parameters
----------
size : (int, int) or None
The desired size as a width, height tuple, or None if wanting
default image size.
Returns
-------
image : toolkit image
The toolkit image corresponding to the image and the specified
size.
"""
image = array_to_image(self.data)
if size is not None:
image = resize_image(image, size)
return image
def create_bitmap(self, size=None):
""" Creates a toolkit-specific bitmap image for this array.
Parameters
----------
size : (int, int) or None
The desired size as a width, height tuple, or None if wanting
default image size.
Returns
-------
image : toolkit bitmap
The toolkit bitmap corresponding to the image and the specified
size.
"""
return image_to_bitmap(self.create_image(size))
def create_icon(self, size=None):
""" Creates a toolkit-specific icon for this array.
Parameters
----------
size : (int, int) or None
The desired size as a width, height tuple, or None if wanting
default icon size.
Returns
-------
image : toolkit icon
The toolkit image corresponding to the image and the specified
size as an icon.
"""
return bitmap_to_icon(self.create_bitmap(size))
# ------------------------------------------------------------------------
# 'object' interface.
# ------------------------------------------------------------------------
def __init__(self, data, **traits):
super().__init__(data=data, **traits)
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