Viewing file:  ImageMode.py (1.28 KB) -rw-r--r--
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#
# The Python Imaging Library.
# $Id$
#
# standard mode descriptors
#
# History:
# 2006-03-20 fl Added
#
# Copyright (c) 2006 by Secret Labs AB.
# Copyright (c) 2006 by Fredrik Lundh.
#
# See the README file for information on usage and redistribution.
#
# mode descriptor cache
_modes = {}
##
# Wrapper for mode strings.
class ModeDescriptor(object):
def __init__(self, mode, bands, basemode, basetype):
self.mode = mode
self.bands = bands
self.basemode = basemode
self.basetype = basetype
def __str__(self):
return self.mode
##
# Gets a mode descriptor for the given mode.
def getmode(mode):
if not _modes:
# initialize mode cache
from PIL import Image
# core modes
for m, (basemode, basetype, bands) in Image._MODEINFO.items():
_modes[m] = ModeDescriptor(m, bands, basemode, basetype)
# extra experimental modes
_modes["LA"] = ModeDescriptor("LA", ("L", "A"), "L", "L")
_modes["PA"] = ModeDescriptor("PA", ("P", "A"), "RGB", "L")
# mapping modes
_modes["I;16"] = ModeDescriptor("I;16", "I", "L", "L")
_modes["I;16L"] = ModeDescriptor("I;16L", "I", "L", "L")
_modes["I;16B"] = ModeDescriptor("I;16B", "I", "L", "L")
return _modes[mode]
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