# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
""" JPEG -> JPEG
$Id$
"""
from zojax.converter.utils import log
from zojax.converter.image.pilimage import PILImageConverter
import PIL.Image
# check encoders
try:
PIL.Image.core.jpeg_decoder
PIL.Image.core.jpeg_encoder
except:
log("JPEG converters are not available. PIL doesn't support this formats")
raise ImportError()
class JPEGtoJPEGConverter(PILImageConverter):
_from_format = 'jpeg'
_dest_format = 'jpeg'
##############################################################################
""" PIL based image converter
$Id$
"""
from cStringIO import StringIO
from zope import interface
from zojax.converter.utils import log
from zojax.converter.interfaces import ConverterException
from zojax.converter.interfaces import ISimpleImageConverter
try:
import PIL.Image
except:
log("Python Imaging library is not available.")
raise ImportError()
class PILImageConverter(object):
interface.implementsOnly(ISimpleImageConverter)
_from_format = 'raw'
_dest_format = 'raw'
def convert(self, data, width=None, height=None, scale=0, quality=88):
""" convert image """
data.seek(0, 0)
try:
image = PIL.Image.open(data)
""" GIF -> PNG and PNG - > GIF converters
$Id$
"""
from zojax.converter.utils import log
from zojax.converter.image.pilimage import PILImageConverter
import PIL.Image
# check encoders
try:
PIL.Image.core.gif_decoder
PIL.Image.core.gif_encoder
PIL.Image.core.zip_decoder
PIL.Image.core.zip_encoder
except:
log("PNG/GIF converters are not available. PIL doesn't support this formats")
raise ImportError()
class PNGtoGIFConverter(PILImageConverter):
_from_format = 'zip'
_dest_format = 'gif'
class GIFtoPNGConverter(PILImageConverter):
_from_format = 'gif'
_dest_format = 'zip'
