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author | 2022-11-13 23:46:45 +0530 | |
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committer | 2022-11-13 23:46:45 +0530 | |
commit | 9468226a9e2e2ab8cdd599f1d8538e860ca86120 (patch) | |
tree | 0a77ada226d6db80639f96b438bf83e4e756edb5 /env/lib/python3.10/site-packages/PIL/XbmImagePlugin.py | |
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id card generator
Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/XbmImagePlugin.py')
-rw-r--r-- | env/lib/python3.10/site-packages/PIL/XbmImagePlugin.py | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/XbmImagePlugin.py b/env/lib/python3.10/site-packages/PIL/XbmImagePlugin.py new file mode 100644 index 0000000..59acabe --- /dev/null +++ b/env/lib/python3.10/site-packages/PIL/XbmImagePlugin.py @@ -0,0 +1,95 @@ +# +# The Python Imaging Library. +# $Id$ +# +# XBM File handling +# +# History: +# 1995-09-08 fl Created +# 1996-11-01 fl Added save support +# 1997-07-07 fl Made header parser more tolerant +# 1997-07-22 fl Fixed yet another parser bug +# 2001-02-17 fl Use 're' instead of 'regex' (Python 2.1) (0.4) +# 2001-05-13 fl Added hotspot handling (based on code from Bernhard Herzog) +# 2004-02-24 fl Allow some whitespace before first #define +# +# Copyright (c) 1997-2004 by Secret Labs AB +# Copyright (c) 1996-1997 by Fredrik Lundh +# +# See the README file for information on usage and redistribution. +# + +import re + +from . import Image, ImageFile + +# XBM header +xbm_head = re.compile( + rb"\s*#define[ \t]+.*_width[ \t]+(?P<width>[0-9]+)[\r\n]+" + b"#define[ \t]+.*_height[ \t]+(?P<height>[0-9]+)[\r\n]+" + b"(?P<hotspot>" + b"#define[ \t]+[^_]*_x_hot[ \t]+(?P<xhot>[0-9]+)[\r\n]+" + b"#define[ \t]+[^_]*_y_hot[ \t]+(?P<yhot>[0-9]+)[\r\n]+" + b")?" + rb"[\000-\377]*_bits\[]" +) + + +def _accept(prefix): + return prefix.lstrip()[:7] == b"#define" + + +## +# Image plugin for X11 bitmaps. + + +class XbmImageFile(ImageFile.ImageFile): + + format = "XBM" + format_description = "X11 Bitmap" + + def _open(self): + + m = xbm_head.match(self.fp.read(512)) + + if not m: + raise SyntaxError("not a XBM file") + + xsize = int(m.group("width")) + ysize = int(m.group("height")) + + if m.group("hotspot"): + self.info["hotspot"] = (int(m.group("xhot")), int(m.group("yhot"))) + + self.mode = "1" + self._size = xsize, ysize + + self.tile = [("xbm", (0, 0) + self.size, m.end(), None)] + + +def _save(im, fp, filename): + + if im.mode != "1": + raise OSError(f"cannot write mode {im.mode} as XBM") + + fp.write(f"#define im_width {im.size[0]}\n".encode("ascii")) + fp.write(f"#define im_height {im.size[1]}\n".encode("ascii")) + + hotspot = im.encoderinfo.get("hotspot") + if hotspot: + fp.write(f"#define im_x_hot {hotspot[0]}\n".encode("ascii")) + fp.write(f"#define im_y_hot {hotspot[1]}\n".encode("ascii")) + + fp.write(b"static char im_bits[] = {\n") + + ImageFile._save(im, fp, [("xbm", (0, 0) + im.size, 0, None)]) + + fp.write(b"};\n") + + +Image.register_open(XbmImageFile.format, XbmImageFile, _accept) +Image.register_save(XbmImageFile.format, _save) + +Image.register_extension(XbmImageFile.format, ".xbm") + +Image.register_mime(XbmImageFile.format, "image/xbm") |