class MicImageFile(TiffImagePlugin.TiffImageFile): format = "MIC" format_description = "Microsoft Image Composer" def _open(self): # read the OLE directory and see if this is a likely # to be a Microsoft Image Composer file try: self.ole = 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 file in self.ole.listdir(): if file[1:] and file[0][-4:] == ".ACI" and file[1] == "Image": self.images.append(file) # 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 = 0 if len(self.images) > 1: self.category = Image.CONTAINER self.seek(0) def seek(self, frame): 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