Source code for PIL.MicImagePlugin

#
# The Python Imaging Library.
# $Id$
#
# Microsoft Image Composer support for PIL
#
# Notes:
#       uses TiffImagePlugin.py to read the actual image streams
#
# History:
#       97-01-20 fl     Created
#
# Copyright (c) Secret Labs AB 1997.
# Copyright (c) Fredrik Lundh 1997.
#
# See the README file for information on usage and redistribution.
#


from . import Image, TiffImagePlugin

import olefile

__version__ = "0.1"


#
# --------------------------------------------------------------------


def _accept(prefix):
    return prefix[:8] == olefile.MAGIC


##
# Image plugin for Microsoft's Image Composer file format.

[docs]class MicImageFile(TiffImagePlugin.TiffImageFile): format = "MIC" format_description = "Microsoft Image Composer" _close_exclusive_fp_after_loading = False def _open(self): # read the OLE directory and see if this is a likely # to be a Microsoft Image Composer file try: self.ole = olefile.OleFileIO(self.fp) except IOError: raise SyntaxError("not an MIC file; invalid OLE file") # find ACI subfiles with Image members (maybe not the # best way to identify MIC files, but what the... ;-) self.images = [] for path in self.ole.listdir(): if path[1:] and path[0][-4:] == ".ACI" and path[1] == "Image": self.images.append(path) # if we didn't find any images, this is probably not # an MIC file. if not self.images: raise SyntaxError("not an MIC file; no image entries") self.__fp = self.fp self.frame = None if len(self.images) > 1: self.category = Image.CONTAINER self.seek(0) @property def n_frames(self): return len(self.images) @property def is_animated(self): return len(self.images) > 1
[docs] def seek(self, frame): if not self._seek_check(frame): return try: filename = self.images[frame] except IndexError: raise EOFError("no such frame") self.fp = self.ole.openstream(filename) TiffImagePlugin.TiffImageFile._open(self) self.frame = frame
[docs] def tell(self): return self.frame
# # -------------------------------------------------------------------- Image.register_open(MicImageFile.format, MicImageFile, _accept) Image.register_extension(MicImageFile.format, ".mic")