Gecko [ www.utparral.edu.mx ]

Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
BdfFontFile.py	2.75 KB	-rw-r--r--
_binary.py	2 KB	-rw-r--r--
BlpImagePlugin.py	14.23 KB	-rw-r--r--
BmpImagePlugin.py	13.91 KB	-rw-r--r--
BufrStubImagePlugin.py	1.48 KB	-rw-r--r--
ContainerIO.py	2.82 KB	-rw-r--r--
CurImagePlugin.py	1.64 KB	-rw-r--r--
DcxImagePlugin.py	2.09 KB	-rw-r--r--
DdsImagePlugin.py	7.8 KB	-rw-r--r--
EpsImagePlugin.py	11.64 KB	-rw-r--r--
ExifTags.py	9.22 KB	-rw-r--r--
features.py	9.17 KB	-rw-r--r--
FitsStubImagePlugin.py	2.5 KB	-rw-r--r--
FliImagePlugin.py	4.16 KB	-rw-r--r--
FontFile.py	2.7 KB	-rw-r--r--
FpxImagePlugin.py	6.5 KB	-rw-r--r--
FtexImagePlugin.py	3.23 KB	-rw-r--r--
GbrImagePlugin.py	2.73 KB	-rw-r--r--
GdImageFile.py	2.41 KB	-rw-r--r--
GifImagePlugin.py	32.05 KB	-rw-r--r--
GimpGradientFile.py	3.27 KB	-rw-r--r--
GimpPaletteFile.py	1.24 KB	-rw-r--r--
GribStubImagePlugin.py	1.48 KB	-rw-r--r--
Hdf5StubImagePlugin.py	1.48 KB	-rw-r--r--
IcnsImagePlugin.py	11.46 KB	-rw-r--r--
IcoImagePlugin.py	10.57 KB	-rw-r--r--
ImageChops.py	7.13 KB	-rw-r--r--
ImageCms.py	36.22 KB	-rw-r--r--
ImageColor.py	8.52 KB	-rw-r--r--
ImageDraw2.py	4.9 KB	-rw-r--r--
ImageDraw.py	33.9 KB	-rw-r--r--
ImageEnhance.py	3.12 KB	-rw-r--r--
ImageFile.py	20.58 KB	-rw-r--r--
ImageFilter.py	15.75 KB	-rw-r--r--
ImageFont.py	44.29 KB	-rw-r--r--
ImageGrab.py	3.54 KB	-rw-r--r--
ImageMath.py	7.44 KB	-rw-r--r--
ImageMode.py	2.03 KB	-rw-r--r--
ImageMorph.py	7.59 KB	-rw-r--r--
ImageOps.py	19.82 KB	-rw-r--r--
ImagePalette.py	7.66 KB	-rw-r--r--
ImagePath.py	336 B	-rw-r--r--
Image.py	118.51 KB	-rw-r--r--
ImageQt.py	6.54 KB	-rw-r--r--
ImageSequence.py	1.81 KB	-rw-r--r--
ImageShow.py	7.75 KB	-rw-r--r--
ImageStat.py	3.81 KB	-rw-r--r--
ImageTransform.py	2.78 KB	-rw-r--r--
ImageWin.py	7.02 KB	-rw-r--r--
_imagingcms.cpython-310-x86_64-linux-gnu.so	37.8 KB	-rw-r--r--
_imaging.cpython-310-x86_64-linux-gnu.so	438.53 KB	-rw-r--r--
_imagingft.cpython-310-x86_64-linux-gnu.so	41.46 KB	-rw-r--r--
_imagingmath.cpython-310-x86_64-linux-gnu.so	18.43 KB	-rw-r--r--
_imagingmorph.cpython-310-x86_64-linux-gnu.so	14.46 KB	-rw-r--r--
ImImagePlugin.py	10.48 KB	-rw-r--r--
ImtImagePlugin.py	2.15 KB	-rw-r--r--
__init__.py	1.7 KB	-rw-r--r--
IptcImagePlugin.py	5.58 KB	-rw-r--r--
Jpeg2KImagePlugin.py	10.14 KB	-rw-r--r--
JpegImagePlugin.py	27.79 KB	-rw-r--r--
JpegPresets.py	12.06 KB	-rw-r--r--
__main__.py	41 B	-rw-r--r--
McIdasImagePlugin.py	1.71 KB	-rw-r--r--
MicImagePlugin.py	2.55 KB	-rw-r--r--
MpegImagePlugin.py	1.76 KB	-rw-r--r--
MpoImagePlugin.py	4.3 KB	-rw-r--r--
MspImagePlugin.py	5.4 KB	-rw-r--r--
PaletteFile.py	1.08 KB	-rw-r--r--
PalmImagePlugin.py	8.89 KB	-rw-r--r--
PcdImagePlugin.py	1.44 KB	-rw-r--r--
PcfFontFile.py	6.2 KB	-rw-r--r--
PcxImagePlugin.py	5.73 KB	-rw-r--r--
PdfImagePlugin.py	7.16 KB	-rw-r--r--
PdfParser.py	33.75 KB	-rw-r--r--
PixarImagePlugin.py	1.59 KB	-rw-r--r--
PngImagePlugin.py	43.11 KB	-rw-r--r--
PpmImagePlugin.py	4.34 KB	-rw-r--r--
PsdImagePlugin.py	7.88 KB	-rw-r--r--
PSDraw.py	6.56 KB	-rw-r--r--
PyAccess.py	9.38 KB	-rw-r--r--
SgiImagePlugin.py	5.95 KB	-rw-r--r--
SpiderImagePlugin.py	9.31 KB	-rw-r--r--
SunImagePlugin.py	4.18 KB	-rw-r--r--
TarIO.py	1.41 KB	-rw-r--r--
TgaImagePlugin.py	6.32 KB	-rw-r--r--
TiffImagePlugin.py	71.17 KB	-rw-r--r--
TiffTags.py	14.93 KB	-rw-r--r--
_tkinter_finder.py	525 B	-rw-r--r--
_util.py	359 B	-rw-r--r--
_version.py	50 B	-rw-r--r--
WalImageFile.py	5.42 KB	-rw-r--r--
_webp.cpython-310-x86_64-linux-gnu.so	28.09 KB	-rw-r--r--
WebPImagePlugin.py	10.58 KB	-rw-r--r--
WmfImagePlugin.py	4.53 KB	-rw-r--r--
XbmImagePlugin.py	2.37 KB	-rw-r--r--
XpmImagePlugin.py	2.99 KB	-rw-r--r--
XVThumbImagePlugin.py	1.89 KB	-rw-r--r--

Code Editor : EpsImagePlugin.py

#
# The Python Imaging Library.
# $Id$
#
# EPS file handling
#
# History:
# 1995-09-01 fl   Created (0.1)
# 1996-05-18 fl   Don't choke on "atend" fields, Ghostscript interface (0.2)
# 1996-08-22 fl   Don't choke on floating point BoundingBox values
# 1996-08-23 fl   Handle files from Macintosh (0.3)
# 2001-02-17 fl   Use 're' instead of 'regex' (Python 2.1) (0.4)
# 2003-09-07 fl   Check gs.close status (from Federico Di Gregorio) (0.5)
# 2014-05-07 e    Handling of EPS with binary preview and fixed resolution
#                 resizing
#
# Copyright (c) 1997-2003 by Secret Labs AB.
# Copyright (c) 1995-2003 by Fredrik Lundh
#
# See the README file for information on usage and redistribution.
#

import io
import os
import re
import subprocess
import sys
import tempfile

from . import Image, ImageFile
from ._binary import i32le as i32

#
# --------------------------------------------------------------------

split = re.compile(r"^%%([^:]*):[ \t]*(.*)[ \t]*$")
field = re.compile(r"^%[%!\w]([^:]*)[ \t]*$")

gs_windows_binary = None
if sys.platform.startswith("win"):
    import shutil

for binary in ("gswin32c", "gswin64c", "gs"):
        if shutil.which(binary) is not None:
            gs_windows_binary = binary
            break
    else:
        gs_windows_binary = False

def has_ghostscript():
    if gs_windows_binary:
        return True
    if not sys.platform.startswith("win"):
        try:
            subprocess.check_call(["gs", "--version"], stdout=subprocess.DEVNULL)
            return True
        except OSError:
            # No Ghostscript
            pass
    return False

def Ghostscript(tile, size, fp, scale=1, transparency=False):
    """Render an image using Ghostscript"""

# Unpack decoder tile
    decoder, tile, offset, data = tile[0]
    length, bbox = data

# Hack to support hi-res rendering
    scale = int(scale) or 1
    # orig_size = size
    # orig_bbox = bbox
    size = (size[0] * scale, 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]),
    )

out_fd, outfile = tempfile.mkstemp()
    os.close(out_fd)

infile_temp = None
    if hasattr(fp, "name") and os.path.exists(fp.name):
        infile = fp.name
    else:
        in_fd, infile_temp = tempfile.mkstemp()
        os.close(in_fd)
        infile = infile_temp

# Ignore length and offset!
        # Ghostscript can read it
        # Copy whole file to read in Ghostscript
        with open(infile_temp, "wb") as f:
            # fetch length of fp
            fp.seek(0, io.SEEK_END)
            fsize = fp.tell()
            # ensure start position
            # go back
            fp.seek(0)
            lengthfile = fsize
            while lengthfile > 0:
                s = fp.read(min(lengthfile, 100 * 1024))
                if not s:
                    break
                lengthfile -= len(s)
                f.write(s)

device = "pngalpha" if transparency else "ppmraw"

# Build Ghostscript command
    command = [
        "gs",
        "-q",  # quiet mode
        "-g%dx%d" % size,  # set output geometry (pixels)
        "-r%fx%f" % res,  # set input DPI (dots per inch)
        "-dBATCH",  # exit after processing
        "-dNOPAUSE",  # don't pause between pages
        "-dSAFER",  # safe mode
        f"-sDEVICE={device}",
        f"-sOutputFile={outfile}",  # output file
        # adjust for image origin
        "-c",
        f"{-bbox[0]} {-bbox[1]} translate",
        "-f",
        infile,  # input file
        # showpage (see https://bugs.ghostscript.com/show_bug.cgi?id=698272)
        "-c",
        "showpage",
    ]

if gs_windows_binary is not None:
        if not gs_windows_binary:
            raise OSError("Unable to locate Ghostscript on paths")
        command[0] = gs_windows_binary

# push data through Ghostscript
    try:
        startupinfo = None
        if sys.platform.startswith("win"):
            startupinfo = subprocess.STARTUPINFO()
            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
        subprocess.check_call(command, startupinfo=startupinfo)
        out_im = Image.open(outfile)
        out_im.load()
    finally:
        try:
            os.unlink(outfile)
            if infile_temp:
                os.unlink(infile_temp)
        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.
    """

def __init__(self, fp):
        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)

##
# Image plugin for Encapsulated PostScript.  This plugin supports only
# a few variants of this format.

class EpsImageFile(ImageFile.ImageFile):
    """EPS File Parser for the Python Imaging Library"""

format = "EPS"
    format_description = "Encapsulated Postscript"

mode_map = {1: "L", 2: "LAB", 3: "RGB", 4: "CMYK"}

def _open(self):
        (length, offset) = self._find_offset(self.fp)

# Rewrap the open file pointer in something that will
        # convert line endings and decode to latin-1.
        fp = PSFile(self.fp)

# go to offset - start of "%!PS"
        fp.seek(offset)

box = None

self.mode = "RGB"
        self._size = 1, 1  # FIXME: huh?

#
        # Load EPS header

s_raw = fp.readline()
        s = s_raw.strip("\r\n")

while s_raw:
            if s:
                if len(s) > 255:
                    raise SyntaxError("not an EPS file")

try:
                    m = split.match(s)
                except re.error as e:
                    raise SyntaxError("not an EPS file") from e

if m:
                    k, v = m.group(1, 2)
                    self.info[k] = v
                    if k == "BoundingBox":
                        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

else:
                    m = field.match(s)
                    if m:
                        k = m.group(1)

if k == "EndComments":
                            break
                        if k[:8] == "PS-Adobe":
                            self.info[k[:8]] = k[9:]
                        else:
                            self.info[k] = ""
                    elif s[0] == "%":
                        # handle non-DSC PostScript comments that some
                        # tools mistakenly put in the Comments section
                        pass
                    else:
                        raise OSError("bad EPS header")

s_raw = fp.readline()
            s = s_raw.strip("\r\n")

if s and s[:1] != "%":
                break

#
        # Scan for an "ImageData" descriptor

while s[:1] == "%":

if len(s) > 255:
                raise SyntaxError("not an EPS file")

if s[:11] == "%ImageData:":
                # Encoded bitmapped image.
                x, y, bi, mo = s[11:].split(None, 7)[:4]

if int(bi) != 8:
                    break
                try:
                    self.mode = self.mode_map[int(mo)]
                except ValueError:
                    break

self._size = int(x), int(y)
                return

s = fp.readline().strip("\r\n")
            if not s:
                break

if not box:
            raise OSError("cannot determine EPS bounding box")

def _find_offset(self, fp):

s = fp.read(160)

if s[:4] == b"%!PS":
            # for HEAD without binary preview
            fp.seek(0, io.SEEK_END)
            length = fp.tell()
            offset = 0
        elif i32(s, 0) == 0xC6D3D0C5:
            # FIX for: Some EPS file not handled correctly / issue #302
            # EPS can contain binary data
            # or start directly with latin coding
            # more info see:
            # https://web.archive.org/web/20160528181353/http://partners.adobe.com/public/developer/en/ps/5002.EPSF_Spec.pdf
            offset = i32(s, 4)
            length = i32(s, 8)
        else:
            raise SyntaxError("not an EPS file")

return (length, offset)

def load(self, scale=1, transparency=False):
        # Load EPS via Ghostscript
        if not self.tile:
            return
        self.im = Ghostscript(self.tile, self.size, self.fp, scale, transparency)
        self.mode = self.im.mode
        self._size = self.im.size
        self.tile = []

def load_seek(self, *args, **kwargs):
        # we can't incrementally load, so force ImageFile.parser to
        # use our custom load method by defining this method.
        pass

#
# --------------------------------------------------------------------

def _save(im, fp, filename, eps=1):
    """EPS Writer for the Python Imaging Library."""

#
    # make sure image data is available
    im.load()

#
    # determine PostScript image mode
    if im.mode == "L":
        operator = (8, 1, b"image")
    elif im.mode == "RGB":
        operator = (8, 3, b"false 3 colorimage")
    elif im.mode == "CMYK":
        operator = (8, 4, b"false 4 colorimage")
    else:
        raise ValueError("image mode is not supported")

if eps:
        #
        # write EPS header
        fp.write(b"%!PS-Adobe-3.0 EPSF-3.0\n")
        fp.write(b"%%Creator: PIL 0.1 EpsEncode\n")
        # fp.write("%%CreationDate: %s"...)
        fp.write(b"%%%%BoundingBox: 0 0 %d %d\n" % im.size)
        fp.write(b"%%Pages: 1\n")
        fp.write(b"%%EndComments\n")
        fp.write(b"%%Page: 1 1\n")
        fp.write(b"%%ImageData: %d %d " % im.size)
        fp.write(b'%d %d 0 1 1 "%s"\n' % operator)

#
    # image header
    fp.write(b"gsave\n")
    fp.write(b"10 dict begin\n")
    fp.write(b"/buf %d string def\n" % (im.size[0] * operator[1]))
    fp.write(b"%d %d scale\n" % im.size)
    fp.write(b"%d %d 8\n" % im.size)  # <= bits
    fp.write(b"[%d 0 0 -%d 0 %d]\n" % (im.size[0], im.size[1], im.size[1]))
    fp.write(b"{ currentfile buf readhexstring pop } bind\n")
    fp.write(operator[2] + b"\n")
    if hasattr(fp, "flush"):
        fp.flush()

ImageFile._save(im, fp, [("eps", (0, 0) + im.size, 0, None)])

fp.write(b"\n%%%%EndBinary\n")
    fp.write(b"grestore end\n")
    if hasattr(fp, "flush"):
        fp.flush()

#
# --------------------------------------------------------------------

Image.register_open(EpsImageFile.format, EpsImageFile, _accept)

Image.register_save(EpsImageFile.format, _save)

Image.register_extensions(EpsImageFile.format, [".ps", ".eps"])

Image.register_mime(EpsImageFile.format, "application/postscript")

${this.title}

Code Editor : EpsImagePlugin.py