EVOLUTION-MANAGER

Edit File: XVThumbImagePlugin.py

# # The Python Imaging Library. # $Id$ # # XV Thumbnail file handler by Charles E. "Gene" Cash # (gcash@magicnet.net) # # see xvcolor.c and xvbrowse.c in the sources to John Bradley's XV, # available from ftp://ftp.cis.upenn.edu/pub/xv/ # # history: # 98-08-15 cec created (b/w only) # 98-12-09 cec added color palette # 98-12-28 fl added to PIL (with only a few very minor modifications) # # To do: # FIXME: make save work (this requires quantization support) # __version__ = "0.1" from PIL import Image, ImageFile, ImagePalette, _binary o8 = _binary.o8 # standard color palette for thumbnails (RGB332) PALETTE = b"" for r in range(8): for g in range(8): for b in range(4): PALETTE = PALETTE + (o8((r*255)//7)+o8((g*255)//7)+o8((b*255)//3)) ## # Image plugin for XV thumbnail images. class XVThumbImageFile(ImageFile.ImageFile): format = "XVThumb" format_description = "XV thumbnail image" def _open(self): # check magic s = self.fp.read(6) if s != b"P7 332": raise SyntaxError("not an XV thumbnail file") # Skip to beginning of next line self.fp.readline() # skip info comments while True: s = self.fp.readline() if not s: raise SyntaxError("Unexpected EOF reading XV thumbnail file") if s[0] != b'#': break # parse header line (already read) s = s.strip().split() self.mode = "P" self.size = int(s[0:1]), int(s[1:2]) self.palette = ImagePalette.raw("RGB", PALETTE) self.tile = [ ("raw", (0, 0)+self.size, self.fp.tell(), (self.mode, 0, 1) )] # -------------------------------------------------------------------- Image.register_open("XVThumb", XVThumbImageFile)