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
