diff options
Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/WmfImagePlugin.py')
-rw-r--r-- | env/lib/python3.10/site-packages/PIL/WmfImagePlugin.py | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/WmfImagePlugin.py b/env/lib/python3.10/site-packages/PIL/WmfImagePlugin.py deleted file mode 100644 index 2f54cde..0000000 --- a/env/lib/python3.10/site-packages/PIL/WmfImagePlugin.py +++ /dev/null @@ -1,177 +0,0 @@ -# -# The Python Imaging Library -# $Id$ -# -# WMF stub codec -# -# history: -# 1996-12-14 fl Created -# 2004-02-22 fl Turned into a stub driver -# 2004-02-23 fl Added EMF support -# -# Copyright (c) Secret Labs AB 1997-2004. All rights reserved. -# Copyright (c) Fredrik Lundh 1996. -# -# See the README file for information on usage and redistribution. -# -# WMF/EMF reference documentation: -# https://winprotocoldoc.blob.core.windows.net/productionwindowsarchives/MS-WMF/[MS-WMF].pdf -# http://wvware.sourceforge.net/caolan/index.html -# http://wvware.sourceforge.net/caolan/ora-wmf.html - -from . import Image, ImageFile -from ._binary import i16le as word -from ._binary import si16le as short -from ._binary import si32le as _long - -_handler = None - - -def register_handler(handler): - """ - Install application-specific WMF image handler. - - :param handler: Handler object. - """ - global _handler - _handler = handler - - -if hasattr(Image.core, "drawwmf"): - # install default handler (windows only) - - class WmfHandler: - def open(self, im): - im.mode = "RGB" - self.bbox = im.info["wmf_bbox"] - - def load(self, im): - im.fp.seek(0) # rewind - return Image.frombytes( - "RGB", - im.size, - Image.core.drawwmf(im.fp.read(), im.size, self.bbox), - "raw", - "BGR", - (im.size[0] * 3 + 3) & -4, - -1, - ) - - register_handler(WmfHandler()) - -# -# -------------------------------------------------------------------- -# Read WMF file - - -def _accept(prefix): - return ( - prefix[:6] == b"\xd7\xcd\xc6\x9a\x00\x00" or prefix[:4] == b"\x01\x00\x00\x00" - ) - - -## -# Image plugin for Windows metafiles. - - -class WmfStubImageFile(ImageFile.StubImageFile): - - format = "WMF" - format_description = "Windows Metafile" - - def _open(self): - self._inch = None - - # check placable header - s = self.fp.read(80) - - if s[:6] == b"\xd7\xcd\xc6\x9a\x00\x00": - - # placeable windows metafile - - # get units per inch - self._inch = word(s, 14) - - # get bounding box - x0 = short(s, 6) - y0 = short(s, 8) - x1 = short(s, 10) - y1 = short(s, 12) - - # normalize size to 72 dots per inch - self.info["dpi"] = 72 - size = ( - (x1 - x0) * self.info["dpi"] // self._inch, - (y1 - y0) * self.info["dpi"] // self._inch, - ) - - self.info["wmf_bbox"] = x0, y0, x1, y1 - - # sanity check (standard metafile header) - if s[22:26] != b"\x01\x00\t\x00": - raise SyntaxError("Unsupported WMF file format") - - elif s[:4] == b"\x01\x00\x00\x00" and s[40:44] == b" EMF": - # enhanced metafile - - # get bounding box - x0 = _long(s, 8) - y0 = _long(s, 12) - x1 = _long(s, 16) - y1 = _long(s, 20) - - # get frame (in 0.01 millimeter units) - frame = _long(s, 24), _long(s, 28), _long(s, 32), _long(s, 36) - - size = x1 - x0, y1 - y0 - - # calculate dots per inch from bbox and frame - xdpi = 2540.0 * (x1 - y0) / (frame[2] - frame[0]) - ydpi = 2540.0 * (y1 - y0) / (frame[3] - frame[1]) - - self.info["wmf_bbox"] = x0, y0, x1, y1 - - if xdpi == ydpi: - self.info["dpi"] = xdpi - else: - self.info["dpi"] = xdpi, ydpi - - else: - raise SyntaxError("Unsupported file format") - - self.mode = "RGB" - self._size = size - - loader = self._load() - if loader: - loader.open(self) - - def _load(self): - return _handler - - def load(self, dpi=None): - if dpi is not None and self._inch is not None: - self.info["dpi"] = dpi - x0, y0, x1, y1 = self.info["wmf_bbox"] - self._size = ( - (x1 - x0) * self.info["dpi"] // self._inch, - (y1 - y0) * self.info["dpi"] // self._inch, - ) - return super().load() - - -def _save(im, fp, filename): - if _handler is None or not hasattr(_handler, "save"): - raise OSError("WMF save handler not installed") - _handler.save(im, fp, filename) - - -# -# -------------------------------------------------------------------- -# Registry stuff - - -Image.register_open(WmfStubImageFile.format, WmfStubImageFile, _accept) -Image.register_save(WmfStubImageFile.format, _save) - -Image.register_extensions(WmfStubImageFile.format, [".wmf", ".emf"]) |