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#------------------------------------------------------------------------------
#
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/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!
#
# Author: Enthought, Inc.
#
#------------------------------------------------------------------------------
""" Enthought pyface package component
"""
# Standard library imports.
import os
import tempfile
from six.moves import cStringIO as StringIO
# Major package imports.
import wx
# Enthought library imports.
from pyface.resource.api import ResourceFactory
from traits.api import Undefined
class PyfaceResourceFactory(ResourceFactory):
""" The implementation of a shared resource manager. """
###########################################################################
# 'ResourceFactory' toolkit interface.
###########################################################################
def image_from_file(self, filename):
""" Creates an image from the data in the specified filename. """
# N.B 'wx.BITMAP_TYPE_ANY' tells wxPython to attempt to autodetect the
# --- image format.
return wx.Image(filename, wx.BITMAP_TYPE_ANY)
def image_from_data(self, data, filename=None):
""" Creates an image from the specified data. """
try:
return wx.ImageFromStream(StringIO(data))
except:
# wx.ImageFromStream is only in wx 2.8 or later(?)
if filename is Undefined:
return None
handle = None
if filename is None:
# If there is currently no way in wx to create an image from data,
# we have write it out to a temporary file and then read it back in:
handle, filename = tempfile.mkstemp()
# Write it out...
tf = open(filename, 'wb')
tf.write(data)
tf.close()
# ... and read it back in! Lovely 8^()
image = wx.Image(filename, wx.BITMAP_TYPE_ANY)
# Remove the temporary file.
if handle is not None:
os.close(handle)
os.unlink(filename)
return image
#### EOF ######################################################################
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