#
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# The Python Imaging Library.
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# $Id$
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#
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# Microsoft Image Composer support for PIL
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#
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# Notes:
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# uses TiffImagePlugin.py to read the actual image streams
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#
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# History:
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# 97-01-20 fl Created
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#
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# Copyright (c) Secret Labs AB 1997.
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# Copyright (c) Fredrik Lundh 1997.
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#
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# See the README file for information on usage and redistribution.
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#
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__version__ = "0.1"
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import Image, TiffImagePlugin
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from OleFileIO import *
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#
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# --------------------------------------------------------------------
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def _accept(prefix):
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return prefix[:8] == MAGIC
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##
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# Image plugin for Microsoft's Image Composer file format.
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class MicImageFile(TiffImagePlugin.TiffImageFile):
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format = "MIC"
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format_description = "Microsoft Image Composer"
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def _open(self):
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# read the OLE directory and see if this is a likely
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# to be a Microsoft Image Composer file
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try:
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self.ole = OleFileIO(self.fp)
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except IOError:
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raise SyntaxError, "not an MIC file; invalid OLE file"
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# find ACI subfiles with Image members (maybe not the
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# best way to identify MIC files, but what the... ;-)
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self.images = []
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for file in self.ole.listdir():
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if file[1:] and file[0][-4:] == ".ACI" and file[1] == "Image":
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self.images.append(file)
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# if we didn't find any images, this is probably not
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# an MIC file.
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if not self.images:
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raise SyntaxError, "not an MIC file; no image entries"
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self.__fp = self.fp
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self.frame = 0
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if len(self.images) > 1:
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self.category = Image.CONTAINER
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self.seek(0)
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def seek(self, frame):
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try:
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filename = self.images[frame]
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except IndexError:
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raise EOFError, "no such frame"
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self.fp = self.ole.openstream(filename)
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TiffImagePlugin.TiffImageFile._open(self)
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self.frame = frame
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def tell(self):
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return self.frame
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#
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# --------------------------------------------------------------------
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Image.register_open("MIC", MicImageFile, _accept)
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Image.register_extension("MIC", ".mic")
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