diff --git a/.coveragerc b/.coveragerc index f5a1e06..398ff08 100644 --- a/.coveragerc +++ b/.coveragerc @@ -1,3 +1,2 @@ [run] branch = True -omit = camelot/ext/* diff --git a/camelot/ext/__init__.py b/camelot/ext/__init__.py deleted file mode 100644 index e69de29..0000000 diff --git a/camelot/ext/ghostscript/COPYING b/camelot/ext/ghostscript/COPYING deleted file mode 100644 index 94a9ed0..0000000 --- a/camelot/ext/ghostscript/COPYING +++ /dev/null @@ -1,674 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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But first, please read -. diff --git a/camelot/ext/ghostscript/__init__.py b/camelot/ext/ghostscript/__init__.py deleted file mode 100644 index 5816475..0000000 --- a/camelot/ext/ghostscript/__init__.py +++ /dev/null @@ -1,98 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- -""" -ghostscript - A Python interface for the Ghostscript interpreter C-API -""" -# -# Modifications 2018 by Vinayak Mehta -# Copyright 2010-2018 by Hartmut Goebel -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . -# - -from . import _gsprint as gs - - -__author__ = "Hartmut Goebel " -__copyright__ = "Copyright 2010-2018 by Hartmut Goebel " -__license__ = "GNU General Public License version 3 (GPL v3)" -__version__ = "0.6" - - -class __Ghostscript(object): - def __init__(self, instance, args, stdin=None, stdout=None, stderr=None): - self._initialized = False - self._callbacks = None - if stdin or stdout or stderr: - self.set_stdio(stdin, stdout, stderr) - rc = gs.init_with_args(instance, args) - self._initialized = True - if rc == gs.e_Quit: - self.exit() - - def __enter__(self): - return self - - def __exit__(self, *args): - self.exit() - - def set_stdio(self, stdin=None, stdout=None, stderr=None): - """Set stdin, stdout and stderr of the ghostscript interpreter. - - The ``stdin`` stream has to support the ``readline()`` - interface. The ``stdout`` and ``stderr`` streams have to - support the ``write()`` and ``flush()`` interface. - - Please note that this does not affect the input- and output- - streams of the devices. Esp. setting stdout does not allow - catching the devise-output even when using ``-sOutputFile=-``. - - """ - global __instance__ - self._callbacks = ( - stdin and gs._wrap_stdin(stdin) or None, - stdout and gs._wrap_stdout(stdout) or None, - stderr and gs._wrap_stderr(stderr) or None, - ) - gs.set_stdio(__instance__, *self._callbacks) - - def __del__(self): - self.exit() - - def exit(self): - global __instance__ - if self._initialized: - if __instance__ is not None: - gs.exit(__instance__) - gs.delete_instance(__instance__) - __instance__ = None - self._initialized = False - - -def Ghostscript(*args, **kwargs): - """Factory function for setting up a Ghostscript instance""" - global __instance__ - # 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), - ) - - -__instance__ = None diff --git a/camelot/ext/ghostscript/_gsprint.py b/camelot/ext/ghostscript/_gsprint.py deleted file mode 100644 index 9896805..0000000 --- a/camelot/ext/ghostscript/_gsprint.py +++ /dev/null @@ -1,270 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- -""" -ghostscript._gsprint - A low-level interface to the Ghostscript C-API using ctypes -""" -# -# Modifications 2018 by Vinayak Mehta -# Copyright 2010-2018 by Hartmut Goebel -# -# Display_callback Structure by Lasse Fister in 2013 -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . -# - -import sys -from ctypes import * - - -# base/gserrors.h -# -# Internal code for a normal exit when usage info is displayed. -# This allows Window versions of Ghostscript to pause until -# the message can be read. -# -e_Info = -110 - -# -# Internal code for the .quit operator. -# The real quit code is an integer on the operand stack. -# gs_interpret returns this only for a .quit with a zero exit code. -# -e_Quit = -101 - -__author__ = "Hartmut Goebel " -__copyright__ = "Copyright 2010-2018 by Hartmut Goebel " -__license__ = "GNU General Public License version 3 (GPL v3)" -__version__ = "0.6" - -gs_main_instance = c_void_p -display_callback = c_void_p - -# https://www.ghostscript.com/doc/current/API.htm - - -class GhostscriptError(Exception): - def __init__(self, ecode): - self.code = ecode - - -def new_instance(): - """Create a new instance of Ghostscript - - This instance is passed to most other API functions. - """ - # :todo: The caller_handle will be provided to callback functions. - display_callback = None - instance = gs_main_instance() - rc = libgs.gsapi_new_instance(pointer(instance), display_callback) - if rc != 0: - raise GhostscriptError(rc) - return instance - - -def delete_instance(instance): - """Destroy an instance of Ghostscript - - Before you call this, Ghostscript must have finished. - If Ghostscript has been initialised, you must call exit() - before delete_instance() - """ - return libgs.gsapi_delete_instance(instance) - - -if sys.platform == "win32": - c_stdstream_call_t = WINFUNCTYPE(c_int, gs_main_instance, POINTER(c_char), c_int) -else: - c_stdstream_call_t = CFUNCTYPE(c_int, gs_main_instance, POINTER(c_char), c_int) - - -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) - except: - count = -1 - else: - if not data: - count = 0 - else: - count = len(data) - memmove(dest, c_char_p(data), count) - return count - - return c_stdstream_call_t(_wrap) - - -def _wrap_stdout(outfp): - """Wrap a filehandle into a C function to be used as `stdout` or - `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() - return count - - return c_stdstream_call_t(_wrap) - - -_wrap_stderr = _wrap_stdout - - -def set_stdio(instance, stdin, stdout, stderr): - """Set the callback functions for stdio. - - ``stdin``, ``stdout`` and ``stderr`` have to be ``ctypes`` - callback functions matching the ``_gsprint.c_stdstream_call_t`` - prototype. You may want to use _wrap_* to wrap file handles. - - Note 1: This function only changes stdio of the Postscript - interpreter, not that of the devices. - - Note 2: Make sure you keep references to C function objects - as long as they are used from C code. Otherwise they may be - garbage collected, crashing your program when a callback is made. - - The ``stdin`` callback function should return the number of - characters read, `0` for EOF, or `-1` for error. The `stdout` and - `stderr` callback functions should return the number of characters - written. - - You may pass ``None`` for any of stdin, stdout or stderr , in which - case the system stdin, stdout resp. stderr will be used. - """ - rc = libgs.gsapi_set_stdio(instance, stdin, stdout, stderr) - if rc not in (0, e_Quit, e_Info): - raise GhostscriptError(rc) - return rc - - -def init_with_args(instance, argv): - """Initialise the interpreter - - 1. If quit or EOF occur during init_with_args(), the return value - will be e_Quit. This is not an error. You must call exit() and - must not call any other functions. - - 2. If usage info should be displayed, the return value will be - e_Info which is not an error. Do not call exit(). - - 3. Under normal conditions this returns 0. You would then call one - or more run_*() functions and then finish with exit() - """ - ArgArray = c_char_p * len(argv) - c_argv = ArgArray(*argv) - rc = libgs.gsapi_init_with_args(instance, len(argv), c_argv) - if rc not in (0, e_Quit, e_Info): - raise GhostscriptError(rc) - return rc - - -def exit(instance): - """Exit the interpreter - - This must be called on shutdown if init_with_args() has been - called, and just before delete_instance() - """ - rc = libgs.gsapi_exit(instance) - if rc != 0: - raise GhostscriptError(rc) - return rc - - -def __win32_finddll(): - try: - import winreg - except ImportError: - # assume Python 2 - from _winreg import ( - OpenKey, - CloseKey, - EnumKey, - QueryValueEx, - QueryInfoKey, - HKEY_LOCAL_MACHINE, - ) - else: - from winreg import ( - OpenKey, - CloseKey, - EnumKey, - QueryValueEx, - QueryInfoKey, - HKEY_LOCAL_MACHINE, - ) - - from distutils.version import LooseVersion - import os - - 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", - ): - 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] - CloseKey(k2) - if os.path.exists(dll_path): - dlls.append((LooseVersion(version), dll_path)) - except WindowsError: - pass - CloseKey(k1) - except WindowsError: - pass - if dlls: - dlls.sort() - return dlls[-1][-1] - else: - return None - - -if sys.platform == "win32": - libgs = __win32_finddll() - if not libgs: - import ctypes.util - - libgs = ctypes.util.find_library( - "".join(("gsdll", str(ctypes.sizeof(ctypes.c_voidp) * 8), ".dll")) - ) # finds in %PATH% - if not libgs: - raise RuntimeError("Please make sure that Ghostscript is installed") - libgs = windll.LoadLibrary(libgs) -else: - try: - libgs = cdll.LoadLibrary("libgs.so") - except OSError: - # shared object file not found - import ctypes.util - - libgs = ctypes.util.find_library("gs") - if not libgs: - raise RuntimeError("Please make sure that Ghostscript is installed") - libgs = cdll.LoadLibrary(libgs) - -del __win32_finddll