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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 . import BmpImagePlugin, Image
- from ._binary import i8
- from ._binary import i16le as i16
- from ._binary import i32le as i32
- #
- # --------------------------------------------------------------------
- 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
- 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")
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