Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/PIL/PaletteFile.py: 25%

1# 

2# Python Imaging Library 

3# $Id$ 

4# 

5# stuff to read simple, teragon-style palette files 

6# 

7# History: 

8# 97-08-23 fl Created 

9# 

10# Copyright (c) Secret Labs AB 1997. 

11# Copyright (c) Fredrik Lundh 1997. 

12# 

13# See the README file for information on usage and redistribution. 

14# 

15from __future__ import annotations 

16 

17from typing import IO 

18 

19from ._binary import o8 

20 

21 

22class PaletteFile: 

23 """File handler for Teragon-style palette files.""" 

24 

25 rawmode = "RGB" 

26 

27 def __init__(self, fp: IO[bytes]) -> None: 

28 palette = [o8(i) * 3 for i in range(256)] 

29 

30 while True: 

31 s = fp.readline() 

32 

33 if not s: 

34 break 

35 if s.startswith(b"#"): 

36 continue 

37 if len(s) > 100: 

38 msg = "bad palette file" 

39 raise SyntaxError(msg) 

40 

41 v = [int(x) for x in s.split()] 

42 try: 

43 [i, r, g, b] = v 

44 except ValueError: 

45 [i, r] = v 

46 g = b = r 

47 

48 if 0 <= i <= 255: 

49 palette[i] = o8(r) + o8(g) + o8(b) 

50 

51 self.palette = b"".join(palette) 

52 

53 def getpalette(self) -> tuple[bytes, str]: 

54 return self.palette, self.rawmode