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75 lines
1.6 KiB
Python
75 lines
1.6 KiB
Python
#
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# The Python Imaging Library.
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# $Id$
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#
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# Windows Cursor support for PIL
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#
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# notes:
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# uses BmpImagePlugin.py to read the bitmap data.
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#
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# history:
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# 96-05-27 fl Created
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#
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# Copyright (c) Secret Labs AB 1997.
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# Copyright (c) Fredrik Lundh 1996.
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#
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# See the README file for information on usage and redistribution.
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#
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from . import BmpImagePlugin, Image
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from ._binary import i8, i16le as i16, i32le as i32
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#
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# --------------------------------------------------------------------
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def _accept(prefix):
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return prefix[:4] == b"\0\0\2\0"
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##
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# Image plugin for Windows Cursor files.
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class CurImageFile(BmpImagePlugin.BmpImageFile):
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format = "CUR"
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format_description = "Windows Cursor"
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def _open(self):
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offset = self.fp.tell()
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# check magic
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s = self.fp.read(6)
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if not _accept(s):
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raise SyntaxError("not a CUR file")
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# pick the largest cursor in the file
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m = b""
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for i in range(i16(s[4:])):
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s = self.fp.read(16)
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if not m:
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m = s
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elif i8(s[0]) > i8(m[0]) and i8(s[1]) > i8(m[1]):
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m = s
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if not m:
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raise TypeError("No cursors were found")
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# load as bitmap
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self._bitmap(i32(m[12:]) + offset)
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# patch up the bitmap height
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self._size = self.size[0], self.size[1] // 2
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d, e, o, a = self.tile[0]
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self.tile[0] = d, (0, 0) + self.size, o, a
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return
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#
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# --------------------------------------------------------------------
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Image.register_open(CurImageFile.format, CurImageFile, _accept)
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Image.register_extension(CurImageFile.format, ".cur")
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