Bindings/Python/__init__.py.in

   1 # PyOpenSG is (C) Copyright 2005-2009 by Allen Bierbaum
   2 #
   3 # This file is part of PyOpenSG.
   4 #
   5 # PyOpenSG is free software; you can redistribute it and/or modify it under
   6 # the terms of the GNU Lesser General Public License as published by the Free
   7 # Software Foundation; either version 2 of the License, or (at your option)
   8 # any later version.
   9 #
  10 # PyOpenSG is distributed in the hope that it will be useful, but WITHOUT ANY
  11 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  12 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
  13 # more details.
  14 #
  15 # You should have received a copy of the GNU Lesser General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 #
  19 # Init file for osg package.
  20 #
  21
  22 # Hack to bring in all symbols OpenSG is linked against and loads from plugins
  23 # Search for : setdlopenflags and RTLD_GLOBAL on google to see why
  24
  25 from ..OSGBase import AttachmentContainer
  26
  27 original_dlopen_flags = None
  28
  29 try:
  30    import dl, sys
  31    original_dlopen_flags = sys.getdlopenflags()
  32    sys.setdlopenflags(original_dlopen_flags | dl.RTLD_GLOBAL)
  33 except:
  34    pass
  35
  36 # Import everything from the opensg module
  37 from ${PROJECT_NAME}Py import *
  38
  39 if original_dlopen_flags:
  40    sys.setdlopenflags(original_dlopen_flags)
  41
  42 def _fc_cmp(self, other):
  43    """ Comparison operator for field containers. """
  44    id_self = None
  45    id_other = None
  46    if not self is None:
  47       id_self = self.getId()
  48    if not other is None:
  49       id_other = other.getId()
  50
  51    return cmp(id_self, id_other)
  52
  53 def _fc_hash(self):
  54    if self is None:
  55       return -1
  56    else:
  57       return self.getId()
  58
  59 for (n,c) in ${PROJECT_NAME}Py.__dict__.iteritems():
  60   if isinstance(c,type) and (AttachmentContainer in c.__mro__):
  61     c.__cmp__  = _fc_cmp
  62     c.__hash__ = _fc_hash
  63
  64 # Add cored node types
  65 import osg2.helpers.cored_node as cored_node
  66 cored_node.addNodeCoreTypes(globals(), ${PROJECT_NAME}Py)