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#
# The Python Imaging Library.
# $Id$
#
# Windows Cursor 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.
#
from PIL import Image, BmpImagePlugin, _binary
__version__ = "0.1"
#
# --------------------------------------------------------------------
i8 = _binary.i8
i16 = _binary.i16le
i32 = _binary.i32le
def _accept(prefix):
return prefix[:4] == b"\0\0\2\0"
##
# Image plugin for Windows Cursor files.
class CurImageFile(BmpImagePlugin.BmpImageFile):
format = "CUR"
format_description = "Windows Cursor"
def _open(self):
offset = self.fp.tell()
# check magic
s = self.fp.read(6)
if not _accept(s):
raise SyntaxError("not a CUR file")
# pick the largest cursor in the file
m = b""
for i in range(i16(s[4:])):
s = self.fp.read(16)
if not m:
m = s
elif i8(s[0]) > i8(m[0]) and i8(s[1]) > i8(m[1]):
m = s
# print "width", i8(s[0])
# print "height", i8(s[1])
# print "colors", i8(s[2])
# print "reserved", i8(s[3])
# print "hotspot x", i16(s[4:])
# print "hotspot y", i16(s[6:])
# print "bytes", i32(s[8:])
# print "offset", i32(s[12:])
if not m:
raise TypeError("No cursors were found")
# load as bitmap
self._bitmap(i32(m[12:]) + offset)
# 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(CurImageFile.format, CurImageFile, _accept)
Image.register_extension(CurImageFile.format, ".cur")