|
|
- #
- # 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.
-
- 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
-
- 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
-
- def tell(self):
-
- return self.frame
-
-
- #
- # --------------------------------------------------------------------
-
- Image.register_open(MicImageFile.format, MicImageFile, _accept)
-
- Image.register_extension(MicImageFile.format, ".mic")
|
