Coverage for /var/srv/projects/api.amasfac.comuna18.com/tmp/venv/lib/python3.9/site-packages/PIL/XbmImagePlugin.py: 33%
35 statements
« prev ^ index » next coverage.py v6.4.4, created at 2023-07-17 14:22 -0600
« prev ^ index » next coverage.py v6.4.4, created at 2023-07-17 14:22 -0600
1#
2# The Python Imaging Library.
3# $Id$
4#
5# XBM File handling
6#
7# History:
8# 1995-09-08 fl Created
9# 1996-11-01 fl Added save support
10# 1997-07-07 fl Made header parser more tolerant
11# 1997-07-22 fl Fixed yet another parser bug
12# 2001-02-17 fl Use 're' instead of 'regex' (Python 2.1) (0.4)
13# 2001-05-13 fl Added hotspot handling (based on code from Bernhard Herzog)
14# 2004-02-24 fl Allow some whitespace before first #define
15#
16# Copyright (c) 1997-2004 by Secret Labs AB
17# Copyright (c) 1996-1997 by Fredrik Lundh
18#
19# See the README file for information on usage and redistribution.
20#
22import re
24from . import Image, ImageFile
26# XBM header
27xbm_head = re.compile(
28 rb"\s*#define[ \t]+.*_width[ \t]+(?P<width>[0-9]+)[\r\n]+"
29 b"#define[ \t]+.*_height[ \t]+(?P<height>[0-9]+)[\r\n]+"
30 b"(?P<hotspot>"
31 b"#define[ \t]+[^_]*_x_hot[ \t]+(?P<xhot>[0-9]+)[\r\n]+"
32 b"#define[ \t]+[^_]*_y_hot[ \t]+(?P<yhot>[0-9]+)[\r\n]+"
33 b")?"
34 rb"[\000-\377]*_bits\[]"
35)
38def _accept(prefix):
39 return prefix.lstrip()[:7] == b"#define"
42##
43# Image plugin for X11 bitmaps.
46class XbmImageFile(ImageFile.ImageFile):
48 format = "XBM"
49 format_description = "X11 Bitmap"
51 def _open(self):
53 m = xbm_head.match(self.fp.read(512))
55 if not m:
56 raise SyntaxError("not a XBM file")
58 xsize = int(m.group("width"))
59 ysize = int(m.group("height"))
61 if m.group("hotspot"):
62 self.info["hotspot"] = (int(m.group("xhot")), int(m.group("yhot")))
64 self.mode = "1"
65 self._size = xsize, ysize
67 self.tile = [("xbm", (0, 0) + self.size, m.end(), None)]
70def _save(im, fp, filename):
72 if im.mode != "1":
73 raise OSError(f"cannot write mode {im.mode} as XBM")
75 fp.write(f"#define im_width {im.size[0]}\n".encode("ascii"))
76 fp.write(f"#define im_height {im.size[1]}\n".encode("ascii"))
78 hotspot = im.encoderinfo.get("hotspot")
79 if hotspot:
80 fp.write(f"#define im_x_hot {hotspot[0]}\n".encode("ascii"))
81 fp.write(f"#define im_y_hot {hotspot[1]}\n".encode("ascii"))
83 fp.write(b"static char im_bits[] = {\n")
85 ImageFile._save(im, fp, [("xbm", (0, 0) + im.size, 0, None)])
87 fp.write(b"};\n")
90Image.register_open(XbmImageFile.format, XbmImageFile, _accept)
91Image.register_save(XbmImageFile.format, _save)
93Image.register_extension(XbmImageFile.format, ".xbm")
95Image.register_mime(XbmImageFile.format, "image/xbm")