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- #
- # The Python Imaging Library.
- # $Id: IcoImagePlugin.py 2134 2004-10-06 08:55:20Z fredrik $
- #
- # Windows Icon support for PIL
- #
- # Notes:
- # uses BmpImagePlugin.py to read the bitmap data.
- #
- # History:
- # 96-05-27 fl Created
- #
- # Copyright (c) Secret Labs AB 1997.
- # Copyright (c) Fredrik Lundh 1996.
- #
- # See the README file for information on usage and redistribution.
- #
-
-
- __version__ = "0.1"
-
- import string
-
- import Image, BmpImagePlugin
-
-
- #
- # --------------------------------------------------------------------
-
- def i16(c):
- return ord(c[0]) + (ord(c[1])<<8)
-
- def i32(c):
- return ord(c[0]) + (ord(c[1])<<8) + (ord(c[2])<<16) + (ord(c[3])<<24)
-
-
- def _accept(prefix):
- return prefix[:4] == "\0\0\1\0"
-
- ##
- # Image plugin for Windows Icon files.
-
- class IcoImageFile(BmpImagePlugin.BmpImageFile):
-
- format = "ICO"
- format_description = "Windows Icon"
-
- def _open(self):
-
- # check magic
- s = self.fp.read(6)
- if not _accept(s):
- raise SyntaxError, "not an ICO file"
-
- # pick the largest icon in the file
- m = ""
- for i in range(i16(s[4:])):
- s = self.fp.read(16)
- if not m:
- m = s
- elif ord(s[0]) > ord(m[0]) and ord(s[1]) > ord(m[1]):
- m = s
- #print "width", ord(s[0])
- #print "height", ord(s[1])
- #print "colors", ord(s[2])
- #print "reserved", ord(s[3])
- #print "planes", i16(s[4:])
- #print "bitcount", i16(s[6:])
- #print "bytes", i32(s[8:])
- #print "offset", i32(s[12:])
-
- # load as bitmap
- self._bitmap(i32(m[12:]))
-
- # patch up the bitmap height
- self.size = self.size[0], self.size[1]/2
- d, e, o, a = self.tile[0]
- self.tile[0] = d, (0,0)+self.size, o, a
-
- return
-
-
- #
- # --------------------------------------------------------------------
-
- Image.register_open("ICO", IcoImageFile, _accept)
-
- Image.register_extension("ICO", ".ico")
-