upstream/ipython Files · IPython/html/widgets/widget_image.py

Adds configuration options to use Google Drive content manager...

Adds configuration options to use Google Drive content manager Adds the key contentmanager_js_source to webapp_settings that allows for specifying the content manager JavaScript source file. Also adds a NotebookManager subclass, ClientSideNotebookManager, which does minimal logic. This class is used when the JavaScript content manager doesn't use the Python notebook manager, but rather implements that logic client side, as is the case for the Google Drive based content manager. A sample command line that uses the Google Drive content manager, and the ClientSideNotebookManager, is ipython notebook --NotebookApp.webapp_settings="{'contentmanager_js_source': 'base/js/drive_contentmanager'}" --NotebookApp.notebook_manager_class="IPython.html.services.notebooks.clientsidenbmanager.ClientSideNotebookManager"

Sylvain Corlay - - Load All Authors

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             widget_image.py
        
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      """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, register

      from IPython.utils.traitlets import Unicode, CUnicode, Bytes

      from IPython.utils.warn import DeprecatedClass

      #-----------------------------------------------------------------------------

      # Classes

      #-----------------------------------------------------------------------------

      @register('IPython.Image')

      class Image(DOMWidget):

          """Displays an image as a widget.

          The `value` of this widget accepts a byte string.  The byte string is the raw

          image data that you want the browser to display.  You can explicitly define

          the format of the byte string using the `format` trait (which defaults to

          "png")."""

          _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)

      # Remove in IPython 4.0

      ImageWidget = DeprecatedClass(Image, 'ImageWidget')

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				"""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, register
				from IPython.utils.traitlets import Unicode, CUnicode, Bytes
				from IPython.utils.warn import DeprecatedClass

				#-----------------------------------------------------------------------------
				# Classes
				#-----------------------------------------------------------------------------
				@register('IPython.Image')
				class Image(DOMWidget):
				"""Displays an image as a widget.

				The `value` of this widget accepts a byte string. The byte string is the raw
				image data that you want the browser to display. You can explicitly define
				the format of the byte string using the `format` trait (which defaults to
				"png")."""
				_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)


				# Remove in IPython 4.0
				ImageWidget = DeprecatedClass(Image, 'ImageWidget')