|
|
"""Image class.
|
|
|
|
|
|
Represents an image in the frontend using a widget.
|
|
|
"""
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Copyright (c) 2013, the IPython Development Team.
|
|
|
#
|
|
|
# Distributed under the terms of the Modified BSD License.
|
|
|
#
|
|
|
# The full license is in the file COPYING.txt, distributed with this software.
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Imports
|
|
|
#-----------------------------------------------------------------------------
|
|
|
import base64
|
|
|
|
|
|
from .widget import DOMWidget
|
|
|
from IPython.utils.traitlets import Unicode, CUnicode, Bytes
|
|
|
from IPython.utils.warn import DeprecatedClass
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Classes
|
|
|
#-----------------------------------------------------------------------------
|
|
|
class Image(DOMWidget):
|
|
|
_view_name = Unicode('ImageView', sync=True)
|
|
|
|
|
|
# Define the custom state properties to sync with the front-end
|
|
|
format = Unicode('png', sync=True)
|
|
|
width = CUnicode(sync=True)
|
|
|
height = CUnicode(sync=True)
|
|
|
_b64value = Unicode(sync=True)
|
|
|
|
|
|
value = Bytes()
|
|
|
def _value_changed(self, name, old, new):
|
|
|
self._b64value = base64.b64encode(new)
|
|
|
|
|
|
ImageWidget = DeprecatedClass(Image, 'ImageWidget')
|
|
|
|
