gnx/Hotel-Booking
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

updates

Browse Source
This commit is contained in:
Iliyan Angelov
2025-12-01 06:50:10 +02:00
parent 91f51bc6fe
commit 62c1fe5951
4682 changed files with 544807 additions and 31208 deletions
Download Patch File Download Diff File Expand all files Collapse all files

211
Backend/venv/lib/python3.12/site-packages/PIL/EpsImagePlugin.py
View File

@@ -19,6 +19,7 @@
#
# See the README file for information on usage and redistribution.
#
from __future__ import annotations
import io
import os
@@ -26,10 +27,10 @@ import re
import subprocess
import sys
import tempfile
from typing import IO
from . import Image, ImageFile
from ._binary import i32le as i32
from ._deprecate import deprecate
# --------------------------------------------------------------------
@@ -37,11 +38,11 @@ from ._deprecate import deprecate
split = re.compile(r"^%%([^:]*):[ \t]*(.*)[ \t]*$")
field = re.compile(r"^%[%!\w]([^:]*)[ \t]*$")
gs_binary = None
gs_binary: str | bool | None = None
gs_windows_binary = None
def has_ghostscript():
def has_ghostscript() -> bool:
global gs_binary, gs_windows_binary
if gs_binary is None:
if sys.platform.startswith("win"):
@@ -64,27 +65,32 @@ def has_ghostscript():
return gs_binary is not False
def Ghostscript(tile, size, fp, scale=1, transparency=False):
def Ghostscript(
tile: list[ImageFile._Tile],
size: tuple[int, int],
fp: IO[bytes],
scale: int = 1,
transparency: bool = False,
) -> Image.core.ImagingCore:
"""Render an image using Ghostscript"""
global gs_binary
if not has_ghostscript():
msg = "Unable to locate Ghostscript on paths"
raise OSError(msg)
assert isinstance(gs_binary, str)
# Unpack decoder tile
decoder, tile, offset, data = tile[0]
length, bbox = data
args = tile[0].args
assert isinstance(args, tuple)
length, bbox = args
# Hack to support hi-res rendering
scale = int(scale) or 1
# orig_size = size
# orig_bbox = bbox
size = (size[0] * scale, size[1] * scale)
width = size[0] * scale
height = size[1] * scale
# resolution is dependent on bbox and size
res = (
72.0 * size[0] / (bbox[2] - bbox[0]),
72.0 * size[1] / (bbox[3] - bbox[1]),
)
res_x = 72.0 * width / (bbox[2] - bbox[0])
res_y = 72.0 * height / (bbox[3] - bbox[1])
out_fd, outfile = tempfile.mkstemp()
os.close(out_fd)
@@ -115,14 +121,20 @@ def Ghostscript(tile, size, fp, scale=1, transparency=False):
lengthfile -= len(s)
f.write(s)
device = "pngalpha" if transparency else "ppmraw"
if transparency:
# "RGBA"
device = "pngalpha"
else:
# "pnmraw" automatically chooses between
# PBM ("1"), PGM ("L"), and PPM ("RGB").
device = "pnmraw"
# Build Ghostscript command
command = [
gs_binary,
"-q", # quiet mode
"-g%dx%d" % size, # set output geometry (pixels)
"-r%fx%f" % res, # set input DPI (dots per inch)
f"-g{width:d}x{height:d}", # set output geometry (pixels)
f"-r{res_x:f}x{res_y:f}", # set input DPI (dots per inch)
"-dBATCH", # exit after processing
"-dNOPAUSE", # don't pause between pages
"-dSAFER", # safe mode
@@ -145,8 +157,9 @@ def Ghostscript(tile, size, fp, scale=1, transparency=False):
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
subprocess.check_call(command, startupinfo=startupinfo)
out_im = Image.open(outfile)
out_im.load()
with Image.open(outfile) as out_im:
out_im.load()
return out_im.im.copy()
finally:
try:
os.unlink(outfile)
@@ -155,50 +168,11 @@ def Ghostscript(tile, size, fp, scale=1, transparency=False):
except OSError:
pass
im = out_im.im.copy()
out_im.close()
return im
class PSFile:
"""
Wrapper for bytesio object that treats either CR or LF as end of line.
This class is no longer used internally, but kept for backwards compatibility.
"""
def __init__(self, fp):
deprecate(
"PSFile",
11,
action="If you need the functionality of this class "
"you will need to implement it yourself.",
)
self.fp = fp
self.char = None
def seek(self, offset, whence=io.SEEK_SET):
self.char = None
self.fp.seek(offset, whence)
def readline(self):
s = [self.char or b""]
self.char = None
c = self.fp.read(1)
while (c not in b"\r\n") and len(c):
s.append(c)
c = self.fp.read(1)
self.char = self.fp.read(1)
# line endings can be 1 or 2 of \r \n, in either order
if self.char in b"\r\n":
self.char = None
return b"".join(s).decode("latin-1")
def _accept(prefix):
return prefix[:4] == b"%!PS" or (len(prefix) >= 4 and i32(prefix) == 0xC6D3D0C5)
def _accept(prefix: bytes) -> bool:
return prefix.startswith(b"%!PS") or (
len(prefix) >= 4 and i32(prefix) == 0xC6D3D0C5
)
##
@@ -214,14 +188,18 @@ class EpsImageFile(ImageFile.ImageFile):
mode_map = {1: "L", 2: "LAB", 3: "RGB", 4: "CMYK"}
def _open(self):
def _open(self) -> None:
(length, offset) = self._find_offset(self.fp)
# go to offset - start of "%!PS"
self.fp.seek(offset)
self._mode = "RGB"
self._size = None
# When reading header comments, the first comment is used.
# When reading trailer comments, the last comment is used.
bounding_box: list[int] | None = None
imagedata_size: tuple[int, int] | None = None
byte_arr = bytearray(255)
bytes_mv = memoryview(byte_arr)
@@ -230,7 +208,12 @@ class EpsImageFile(ImageFile.ImageFile):
reading_trailer_comments = False
trailer_reached = False
def check_required_header_comments():
def check_required_header_comments() -> None:
"""
The EPS specification requires that some headers exist.
This should be checked when the header comments formally end,
when image data starts, or when the file ends, whichever comes first.
"""
if "PS-Adobe" not in self.info:
msg = 'EPS header missing "%!PS-Adobe" comment'
raise SyntaxError(msg)
@@ -238,41 +221,39 @@ class EpsImageFile(ImageFile.ImageFile):
msg = 'EPS header missing "%%BoundingBox" comment'
raise SyntaxError(msg)
def _read_comment(s):
nonlocal reading_trailer_comments
def read_comment(s: str) -> bool:
nonlocal bounding_box, reading_trailer_comments
try:
m = split.match(s)
except re.error as e:
msg = "not an EPS file"
raise SyntaxError(msg) from e
if m:
k, v = m.group(1, 2)
self.info[k] = v
if k == "BoundingBox":
if v == "(atend)":
reading_trailer_comments = True
elif not self._size or (
trailer_reached and reading_trailer_comments
):
try:
# Note: The DSC spec says that BoundingBox
# fields should be integers, but some drivers
# put floating point values there anyway.
box = [int(float(i)) for i in v.split()]
self._size = box[2] - box[0], box[3] - box[1]
self.tile = [
("eps", (0, 0) + self.size, offset, (length, box))
]
except Exception:
pass
return True
if not m:
return False
k, v = m.group(1, 2)
self.info[k] = v
if k == "BoundingBox":
if v == "(atend)":
reading_trailer_comments = True
elif not bounding_box or (trailer_reached and reading_trailer_comments):
try:
# Note: The DSC spec says that BoundingBox
# fields should be integers, but some drivers
# put floating point values there anyway.
bounding_box = [int(float(i)) for i in v.split()]
except Exception:
pass
return True
while True:
byte = self.fp.read(1)
if byte == b"":
# if we didn't read a byte we must be at the end of the file
if bytes_read == 0:
if reading_header_comments:
check_required_header_comments()
break
elif byte in b"\r\n":
# if we read a line ending character, ignore it and parse what
@@ -312,11 +293,11 @@ class EpsImageFile(ImageFile.ImageFile):
continue
s = str(bytes_mv[:bytes_read], "latin-1")
if not _read_comment(s):
if not read_comment(s):
m = field.match(s)
if m:
k = m.group(1)
if k[:8] == "PS-Adobe":
if k.startswith("PS-Adobe"):
self.info["PS-Adobe"] = k[9:]
else:
self.info[k] = ""
@@ -331,6 +312,12 @@ class EpsImageFile(ImageFile.ImageFile):
# Check for an "ImageData" descriptor
# https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/#50577413_pgfId-1035096
# If we've already read an "ImageData" descriptor,
# don't read another one.
if imagedata_size:
bytes_read = 0
continue
# Values:
# columns
# rows
@@ -356,29 +343,39 @@ class EpsImageFile(ImageFile.ImageFile):
else:
break
self._size = columns, rows
return
# Parse the columns and rows after checking the bit depth and mode
# in case the bit depth and/or mode are invalid.
imagedata_size = columns, rows
elif bytes_mv[:5] == b"%%EOF":
break
elif trailer_reached and reading_trailer_comments:
# Load EPS trailer
# if this line starts with "%%EOF",
# then we've reached the end of the file
if bytes_mv[:5] == b"%%EOF":
break
s = str(bytes_mv[:bytes_read], "latin-1")
_read_comment(s)
read_comment(s)
elif bytes_mv[:9] == b"%%Trailer":
trailer_reached = True
elif bytes_mv[:14] == b"%%BeginBinary:":
bytecount = int(byte_arr[14:bytes_read])
self.fp.seek(bytecount, os.SEEK_CUR)
bytes_read = 0
check_required_header_comments()
if not self._size:
# A "BoundingBox" is always required,
# even if an "ImageData" descriptor size exists.
if not bounding_box:
msg = "cannot determine EPS bounding box"
raise OSError(msg)
def _find_offset(self, fp):
# An "ImageData" size takes precedence over the "BoundingBox".
self._size = imagedata_size or (
bounding_box[2] - bounding_box[0],
bounding_box[3] - bounding_box[1],
)
self.tile = [
ImageFile._Tile("eps", (0, 0) + self.size, offset, (length, bounding_box))
]
def _find_offset(self, fp: IO[bytes]) -> tuple[int, int]:
s = fp.read(4)
if s == b"%!PS":
@@ -401,7 +398,9 @@ class EpsImageFile(ImageFile.ImageFile):
return length, offset
def load(self, scale=1, transparency=False):
def load(
self, scale: int = 1, transparency: bool = False
) -> Image.core.PixelAccess | None:
# Load EPS via Ghostscript
if self.tile:
self.im = Ghostscript(self.tile, self.size, self.fp, scale, transparency)
@@ -410,7 +409,7 @@ class EpsImageFile(ImageFile.ImageFile):
self.tile = []
return Image.Image.load(self)
def load_seek(self, *args, **kwargs):
def load_seek(self, pos: int) -> None:
# we can't incrementally load, so force ImageFile.parser to
# use our custom load method by defining this method.
pass
@@ -419,7 +418,7 @@ class EpsImageFile(ImageFile.ImageFile):
# --------------------------------------------------------------------
def _save(im, fp, filename, eps=1):
def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes, eps: int = 1) -> None:
"""EPS Writer for the Python Imaging Library."""
# make sure image data is available
@@ -460,7 +459,7 @@ def _save(im, fp, filename, eps=1):
if hasattr(fp, "flush"):
fp.flush()
ImageFile._save(im, fp, [("eps", (0, 0) + im.size, 0, None)])
ImageFile._save(im, fp, [ImageFile._Tile("eps", (0, 0) + im.size)])
fp.write(b"\n%%%%EndBinary\n")
fp.write(b"grestore end\n")