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- #
- # 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.
- #
- import olefile
- from . import Image, TiffImagePlugin
- #
- # --------------------------------------------------------------------
- def _accept(prefix):
- return prefix[:8] == olefile.MAGIC
- ##
- # Image plugin for Microsoft's Image Composer file format.
- 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 OSError as e:
- raise SyntaxError("not an MIC file; invalid OLE file") from e
- # 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
- self._n_frames = len(self.images)
- self.is_animated = self._n_frames > 1
- if len(self.images) > 1:
- self.category = Image.CONTAINER
- self.seek(0)
- def seek(self, frame):
- if not self._seek_check(frame):
- return
- try:
- filename = self.images[frame]
- except IndexError as e:
- raise EOFError("no such frame") from e
- self.fp = self.ole.openstream(filename)
- TiffImagePlugin.TiffImageFile._open(self)
- self.frame = frame
- def tell(self):
- return self.frame
- def _close__fp(self):
- try:
- if self.__fp != self.fp:
- self.__fp.close()
- except AttributeError:
- pass
- finally:
- self.__fp = None
- #
- # --------------------------------------------------------------------
- Image.register_open(MicImageFile.format, MicImageFile, _accept)
- Image.register_extension(MicImageFile.format, ".mic")
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