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Name	Size	Perms	Modified	Actions
[ .. / .. ]
BdfFontFile.py	3.39 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
BlpImagePlugin.py	15.19 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
BmpImagePlugin.py	17.32 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
BufrStubImagePlugin.py	1.55 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ContainerIO.py	3.11 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
CurImagePlugin.py	1.7 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
DcxImagePlugin.py	1.95 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
DdsImagePlugin.py	16.32 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
EpsImagePlugin.py	15.44 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ExifTags.py	9.52 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
FitsImagePlugin.py	4.38 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
FliImagePlugin.py	4.46 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
FontFile.py	3.49 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
FpxImagePlugin.py	6.82 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
FtexImagePlugin.py	3.38 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
GbrImagePlugin.py	2.88 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
GdImageFile.py	2.73 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
GifImagePlugin.py	36.84 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
GimpGradientFile.py	3.35 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
GimpPaletteFile.py	1.35 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
GribStubImagePlugin.py	1.55 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
Hdf5StubImagePlugin.py	1.55 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
IcnsImagePlugin.py	11.71 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
IcoImagePlugin.py	11.37 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImImagePlugin.py	10.65 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
Image.py	133.86 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageChops.py	7.76 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageCms.py	40.38 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageColor.py	8.98 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageDraw.py	36.88 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageDraw2.py	5.41 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageEnhance.py	3.15 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageFile.py	23.85 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageFilter.py	16.63 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageFont.py	59.15 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageGrab.py	5.96 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageMath.py	11.21 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageMode.py	2.71 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageMorph.py	8.28 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageOps.py	24.19 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImagePalette.py	7.68 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImagePath.py	371 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageQt.py	5.81 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageSequence.py	2.14 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageShow.py	9.22 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageStat.py	3.64 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageTk.py	8.3 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageTransform.py	3.81 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImageWin.py	7.06 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
ImtImagePlugin.py	2.6 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
IptcImagePlugin.py	5.99 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
Jpeg2KImagePlugin.py	11.63 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
JpegImagePlugin.py	28.88 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
JpegPresets.py	12.13 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
McIdasImagePlugin.py	1.86 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
MicImagePlugin.py	2.55 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
MpegImagePlugin.py	1.96 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
MpoImagePlugin.py	5.65 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
MspImagePlugin.py	5.69 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PSDraw.py	6.41 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PaletteFile.py	1.14 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PalmImagePlugin.py	8.96 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PcdImagePlugin.py	1.58 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PcfFontFile.py	6.98 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PcxImagePlugin.py	6.06 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PdfImagePlugin.py	8.64 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PdfParser.py	33.87 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PixarImagePlugin.py	1.71 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PngImagePlugin.py	45.78 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PpmImagePlugin.py	11.92 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PsdImagePlugin.py	7.52 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
PyAccess.py	9.69 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
QoiImagePlugin.py	3.73 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
SgiImagePlugin.py	6.25 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
SpiderImagePlugin.py	9.25 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
SunImagePlugin.py	4.39 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
TarIO.py	1.7 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
TgaImagePlugin.py	6.76 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
TiffImagePlugin.py	75.38 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
TiffTags.py	16.29 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
WalImageFile.py	5.42 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
WebPImagePlugin.py	11.25 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
WmfImagePlugin.py	4.62 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
XVThumbImagePlugin.py	2.03 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
XbmImagePlugin.py	2.58 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
XpmImagePlugin.py	3.15 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
__init__.py	1.96 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
__main__.py	133 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
__pycache__	-	drwxr-xr-x	2024-04-12 10:59:39	Del
_binary.py	2.49 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_deprecate.py	1.95 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_imaging.cpython-311-x86_64-linux-gnu.so	2.9 MB	-rwxr-xr-x	2024-04-12 10:59:39	Edit Del
_imaging.pyi	63 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_imagingcms.cpython-311-x86_64-linux-gnu.so	142 KB	-rwxr-xr-x	2024-04-12 10:59:39	Edit Del
_imagingcms.pyi	4.33 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_imagingft.cpython-311-x86_64-linux-gnu.so	287.24 KB	-rwxr-xr-x	2024-04-12 10:59:39	Edit Del
_imagingft.pyi	63 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_imagingmath.cpython-311-x86_64-linux-gnu.so	145.53 KB	-rwxr-xr-x	2024-04-12 10:59:39	Edit Del
_imagingmath.pyi	63 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_imagingmorph.cpython-311-x86_64-linux-gnu.so	37.09 KB	-rwxr-xr-x	2024-04-12 10:59:39	Edit Del
_imagingmorph.pyi	63 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_imagingtk.cpython-311-x86_64-linux-gnu.so	43.2 KB	-rwxr-xr-x	2024-04-12 10:59:39	Edit Del
_tkinter_finder.py	540 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_typing.py	776 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_util.py	813 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_version.py	87 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
_webp.cpython-311-x86_64-linux-gnu.so	98.49 KB	-rwxr-xr-x	2024-04-12 10:59:39	Edit Del
_webp.pyi	63 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
features.py	9.92 KB	-rw-r--r--	2024-04-12 10:59:39	Edit Del
py.typed	0 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del
report.py	100 B	-rw-r--r--	2024-04-12 10:59:39	Edit Del

Editing: PcfFontFile.py (6.98 KB)

#
# THIS IS WORK IN PROGRESS
#
# The Python Imaging Library
# $Id$
#
# portable compiled font file parser
#
# history:
# 1997-08-19 fl   created
# 2003-09-13 fl   fixed loading of unicode fonts
#
# Copyright (c) 1997-2003 by Secret Labs AB.
# Copyright (c) 1997-2003 by Fredrik Lundh.
#
# See the README file for information on usage and redistribution.
#
from __future__ import annotations

import io
from typing import BinaryIO, Callable

from . import FontFile, Image
from ._binary import i8
from ._binary import i16be as b16
from ._binary import i16le as l16
from ._binary import i32be as b32
from ._binary import i32le as l32

# --------------------------------------------------------------------
# declarations

PCF_MAGIC = 0x70636601  # "\x01fcp"

PCF_PROPERTIES = 1 << 0
PCF_ACCELERATORS = 1 << 1
PCF_METRICS = 1 << 2
PCF_BITMAPS = 1 << 3
PCF_INK_METRICS = 1 << 4
PCF_BDF_ENCODINGS = 1 << 5
PCF_SWIDTHS = 1 << 6
PCF_GLYPH_NAMES = 1 << 7
PCF_BDF_ACCELERATORS = 1 << 8

BYTES_PER_ROW: list[Callable[[int], int]] = [
    lambda bits: ((bits + 7) >> 3),
    lambda bits: ((bits + 15) >> 3) & ~1,
    lambda bits: ((bits + 31) >> 3) & ~3,
    lambda bits: ((bits + 63) >> 3) & ~7,
]


def sz(s: bytes, o: int) -> bytes:
    return s[o : s.index(b"\0", o)]


class PcfFontFile(FontFile.FontFile):
    """Font file plugin for the X11 PCF format."""

    name = "name"

    def __init__(self, fp: BinaryIO, charset_encoding: str = "iso8859-1"):
        self.charset_encoding = charset_encoding

        magic = l32(fp.read(4))
        if magic != PCF_MAGIC:
            msg = "not a PCF file"
            raise SyntaxError(msg)

        super().__init__()

        count = l32(fp.read(4))
        self.toc = {}
        for i in range(count):
            type = l32(fp.read(4))
            self.toc[type] = l32(fp.read(4)), l32(fp.read(4)), l32(fp.read(4))

        self.fp = fp

        self.info = self._load_properties()

        metrics = self._load_metrics()
        bitmaps = self._load_bitmaps(metrics)
        encoding = self._load_encoding()

        #
        # create glyph structure

        for ch, ix in enumerate(encoding):
            if ix is not None:
                (
                    xsize,
                    ysize,
                    left,
                    right,
                    width,
                    ascent,
                    descent,
                    attributes,
                ) = metrics[ix]
                self.glyph[ch] = (
                    (width, 0),
                    (left, descent - ysize, xsize + left, descent),
                    (0, 0, xsize, ysize),
                    bitmaps[ix],
                )

    def _getformat(
        self, tag: int
    ) -> tuple[BinaryIO, int, Callable[[bytes], int], Callable[[bytes], int]]:
        format, size, offset = self.toc[tag]

        fp = self.fp
        fp.seek(offset)

        format = l32(fp.read(4))

        if format & 4:
            i16, i32 = b16, b32
        else:
            i16, i32 = l16, l32

        return fp, format, i16, i32

    def _load_properties(self) -> dict[bytes, bytes | int]:
        #
        # font properties

        properties = {}

        fp, format, i16, i32 = self._getformat(PCF_PROPERTIES)

        nprops = i32(fp.read(4))

        # read property description
        p = [(i32(fp.read(4)), i8(fp.read(1)), i32(fp.read(4))) for _ in range(nprops)]

        if nprops & 3:
            fp.seek(4 - (nprops & 3), io.SEEK_CUR)  # pad

        data = fp.read(i32(fp.read(4)))

        for k, s, v in p:
            property_value: bytes | int = sz(data, v) if s else v
            properties[sz(data, k)] = property_value

        return properties

    def _load_metrics(self) -> list[tuple[int, int, int, int, int, int, int, int]]:
        #
        # font metrics

        metrics: list[tuple[int, int, int, int, int, int, int, int]] = []

        fp, format, i16, i32 = self._getformat(PCF_METRICS)

        append = metrics.append

        if (format & 0xFF00) == 0x100:
            # "compressed" metrics
            for i in range(i16(fp.read(2))):
                left = i8(fp.read(1)) - 128
                right = i8(fp.read(1)) - 128
                width = i8(fp.read(1)) - 128
                ascent = i8(fp.read(1)) - 128
                descent = i8(fp.read(1)) - 128
                xsize = right - left
                ysize = ascent + descent
                append((xsize, ysize, left, right, width, ascent, descent, 0))

        else:
            # "jumbo" metrics
            for i in range(i32(fp.read(4))):
                left = i16(fp.read(2))
                right = i16(fp.read(2))
                width = i16(fp.read(2))
                ascent = i16(fp.read(2))
                descent = i16(fp.read(2))
                attributes = i16(fp.read(2))
                xsize = right - left
                ysize = ascent + descent
                append((xsize, ysize, left, right, width, ascent, descent, attributes))

        return metrics

    def _load_bitmaps(
        self, metrics: list[tuple[int, int, int, int, int, int, int, int]]
    ) -> list[Image.Image]:
        #
        # bitmap data

        fp, format, i16, i32 = self._getformat(PCF_BITMAPS)

        nbitmaps = i32(fp.read(4))

        if nbitmaps != len(metrics):
            msg = "Wrong number of bitmaps"
            raise OSError(msg)

        offsets = [i32(fp.read(4)) for _ in range(nbitmaps)]

        bitmap_sizes = [i32(fp.read(4)) for _ in range(4)]

        # byteorder = format & 4  # non-zero => MSB
        bitorder = format & 8  # non-zero => MSB
        padindex = format & 3

        bitmapsize = bitmap_sizes[padindex]
        offsets.append(bitmapsize)

        data = fp.read(bitmapsize)

        pad = BYTES_PER_ROW[padindex]
        mode = "1;R"
        if bitorder:
            mode = "1"

        bitmaps = []
        for i in range(nbitmaps):
            xsize, ysize = metrics[i][:2]
            b, e = offsets[i : i + 2]
            bitmaps.append(
                Image.frombytes("1", (xsize, ysize), data[b:e], "raw", mode, pad(xsize))
            )

        return bitmaps

    def _load_encoding(self) -> list[int | None]:
        fp, format, i16, i32 = self._getformat(PCF_BDF_ENCODINGS)

        first_col, last_col = i16(fp.read(2)), i16(fp.read(2))
        first_row, last_row = i16(fp.read(2)), i16(fp.read(2))

        i16(fp.read(2))  # default

        nencoding = (last_col - first_col + 1) * (last_row - first_row + 1)

        # map character code to bitmap index
        encoding: list[int | None] = [None] * min(256, nencoding)

        encoding_offsets = [i16(fp.read(2)) for _ in range(nencoding)]

        for i in range(first_col, len(encoding)):
            try:
                encoding_offset = encoding_offsets[
                    ord(bytearray([i]).decode(self.charset_encoding))
                ]
                if encoding_offset != 0xFFFF:
                    encoding[i] = encoding_offset
            except UnicodeDecodeError:
                # character is not supported in selected encoding
                pass

        return encoding