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57 lines
1.2 KiB
Python
57 lines
1.2 KiB
Python
#
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# Python Imaging Library
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# $Id$
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#
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# stuff to read GIMP palette files
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#
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# History:
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# 1997-08-23 fl Created
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# 2004-09-07 fl Support GIMP 2.0 palette files.
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#
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# Copyright (c) Secret Labs AB 1997-2004. All rights reserved.
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# Copyright (c) Fredrik Lundh 1997-2004.
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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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import re
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from ._binary import o8
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class GimpPaletteFile:
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"""File handler for GIMP's palette format."""
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rawmode = "RGB"
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def __init__(self, fp):
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self.palette = [o8(i) * 3 for i in range(256)]
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if fp.readline()[:12] != b"GIMP Palette":
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raise SyntaxError("not a GIMP palette file")
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for i in range(256):
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s = fp.readline()
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if not s:
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break
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# skip fields and comment lines
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if re.match(br"\w+:|#", s):
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continue
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if len(s) > 100:
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raise SyntaxError("bad palette file")
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v = tuple(map(int, s.split()[:3]))
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if len(v) != 3:
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raise ValueError("bad palette entry")
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self.palette[i] = o8(v[0]) + o8(v[1]) + o8(v[2])
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self.palette = b"".join(self.palette)
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def getpalette(self):
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return self.palette, self.rawmode
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