Handle binary fields. Courtesy of Marcel van der Boom

web_tree_image/__openerp__.py

@@ -4,6 +4,9 @@
 #    OpenERP, Open Source Management Solution
 #    This module copyright (C) 2014 Therp BV (<http://therp.nl>).
 #
+#    Snippet from https://github.com/hsd/listview_images
+#    Copyright (C) 2013 Marcel van der Boom <marcel@hsdev.com>
+#
 #    This program is free software: you can redistribute it and/or modify
 #    it under the terms of the GNU Affero General Public License as
 #    published by the Free Software Foundation, either version 3 of the
@@ -23,11 +26,12 @@
     "version": "1.0",
     "author": "Therp BV",
     "description": """\
-This module defines a tree image widget, to be used with function fields of
-type character. Use widget='tree_image' in your view definition. Optionally, set
-a 'height' tag. Default height is 16px.
+This module defines a tree image widget, to be used with either binary fields
+or function fields of type character. Use widget='tree_image' in your view
+definition. Optionally, set a 'height' tag. Default height is 16px.
 
-The content of the field can be any of the following:
+If you use the widget with a character field, the content of the field can be
+any of the following:
 
 * the absolute or relative location of an image. For example, \
 "/<module>/static/src/img/youricon.png"
@@ -35,9 +39,8 @@ The content of the field can be any of the following:
 * a standard icon from the web distribution, without path or extension, For \
 example, 'gtk-open'
 
-* A dynamic image in a data url base 64 format. To show a regular image field \
-from the model, use a function field wrapper that retrieves the image with \
-bin_size=False in the context, and prefix with 'data:image/png;base64,'
+* A dynamic image in a data url base 64 format. Prefix with \
+'data:image/png;base64,'
     """,
     'depends': [
         'web',