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This commit is contained in:
Vinayak Mehta
2019-07-03 22:04:19 +05:30
parent 27d55d056c
commit 2115a0e177
15 changed files with 892 additions and 551 deletions
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camelot/ext/ghostscript/__init__.py
+11 -8
View File
@@ -24,10 +24,10 @@ ghostscript - A Python interface for the Ghostscript interpreter C-API
from . import _gsprint as gs
__author__ = 'Hartmut Goebel <h.goebel@crazy-compilers.com>'
__copyright__ = 'Copyright 2010-2018 by Hartmut Goebel <h.goebel@crazy-compilers.com>'
__license__ = 'GNU General Public License version 3 (GPL v3)'
__version__ = '0.6'
__author__ = "Hartmut Goebel <h.goebel@crazy-compilers.com>"
__copyright__ = "Copyright 2010-2018 by Hartmut Goebel <h.goebel@crazy-compilers.com>"
__license__ = "GNU General Public License version 3 (GPL v3)"
__version__ = "0.6"
class __Ghostscript(object):
@@ -87,10 +87,13 @@ def Ghostscript(*args, **kwargs):
# Ghostscript only supports a single instance
if __instance__ is None:
__instance__ = gs.new_instance()
return __Ghostscript(__instance__, args,
stdin=kwargs.get('stdin', None),
stdout=kwargs.get('stdout', None),
stderr=kwargs.get('stderr', None))
return __Ghostscript(
__instance__,
args,
stdin=kwargs.get("stdin", None),
stdout=kwargs.get("stdout", None),
stderr=kwargs.get("stderr", None),
)
__instance__ = None
camelot/ext/ghostscript/_gsprint.py
+35 -17
View File
@@ -42,10 +42,10 @@ e_Info = -110
#
e_Quit = -101
__author__ = 'Hartmut Goebel <h.goebel@crazy-compilers.com>'
__copyright__ = 'Copyright 2010-2018 by Hartmut Goebel <h.goebel@crazy-compilers.com>'
__license__ = 'GNU General Public License version 3 (GPL v3)'
__version__ = '0.6'
__author__ = "Hartmut Goebel <h.goebel@crazy-compilers.com>"
__copyright__ = "Copyright 2010-2018 by Hartmut Goebel <h.goebel@crazy-compilers.com>"
__license__ = "GNU General Public License version 3 (GPL v3)"
__version__ = "0.6"
gs_main_instance = c_void_p
display_callback = c_void_p
@@ -55,7 +55,7 @@ display_callback = c_void_p
class GhostscriptError(Exception):
def __init__(self, ecode):
self.code = ecode
self.code = ecode
def new_instance():
@@ -89,6 +89,7 @@ def _wrap_stdin(infp):
"""Wrap a filehandle into a C function to be used as `stdin` callback
for ``set_stdio``. The filehandle has to support the readline() method.
"""
def _wrap(instance, dest, count):
try:
data = infp.readline(count)
@@ -110,6 +111,7 @@ def _wrap_stdout(outfp):
`stderr` callback for ``set_stdio``. The filehandle has to support the
write() and flush() methods.
"""
def _wrap(instance, str, count):
outfp.write(str[:count])
outfp.flush()
@@ -187,11 +189,23 @@ def __win32_finddll():
import winreg
except ImportError:
# assume Python 2
from _winreg import OpenKey, CloseKey, EnumKey, QueryValueEx, \
QueryInfoKey, HKEY_LOCAL_MACHINE
from _winreg import (
OpenKey,
CloseKey,
EnumKey,
QueryValueEx,
QueryInfoKey,
HKEY_LOCAL_MACHINE,
)
else:
from winreg import OpenKey, CloseKey, EnumKey, QueryValueEx, \
QueryInfoKey, HKEY_LOCAL_MACHINE
from winreg import (
OpenKey,
CloseKey,
EnumKey,
QueryValueEx,
QueryInfoKey,
HKEY_LOCAL_MACHINE,
)
from distutils.version import LooseVersion
import os
@@ -199,15 +213,19 @@ def __win32_finddll():
dlls = []
# Look up different variants of Ghostscript and take the highest
# version for which the DLL is to be found in the filesystem.
for key_name in ('AFPL Ghostscript', 'Aladdin Ghostscript',
'GNU Ghostscript', 'GPL Ghostscript'):
for key_name in (
"AFPL Ghostscript",
"Aladdin Ghostscript",
"GNU Ghostscript",
"GPL Ghostscript",
):
try:
k1 = OpenKey(HKEY_LOCAL_MACHINE, "Software\\%s" % key_name)
for num in range(0, QueryInfoKey(k1)[0]):
version = EnumKey(k1, num)
try:
k2 = OpenKey(k1, version)
dll_path = QueryValueEx(k2, 'GS_DLL')[0]
dll_path = QueryValueEx(k2, "GS_DLL")[0]
CloseKey(k2)
if os.path.exists(dll_path):
dlls.append((LooseVersion(version), dll_path))
@@ -223,21 +241,21 @@ def __win32_finddll():
return None
if sys.platform == 'win32':
if sys.platform == "win32":
libgs = __win32_finddll()
if not libgs:
raise RuntimeError('Please make sure that Ghostscript is installed')
raise RuntimeError("Please make sure that Ghostscript is installed")
libgs = windll.LoadLibrary(libgs)
else:
try:
libgs = cdll.LoadLibrary('libgs.so')
libgs = cdll.LoadLibrary("libgs.so")
except OSError:
# shared object file not found
import ctypes.util
libgs = ctypes.util.find_library('gs')
libgs = ctypes.util.find_library("gs")
if not libgs:
raise RuntimeError('Please make sure that Ghostscript is installed')
raise RuntimeError("Please make sure that Ghostscript is installed")
libgs = cdll.LoadLibrary(libgs)
del __win32_finddll