Panda3D

factoryParams.I

00001 // Filename: factoryParams.I
00002 // Created by:  drose (08May00)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #include "pnotify.h"
00016 
00017 
00018 ////////////////////////////////////////////////////////////////////
00019 //     Function: get_param_into
00020 //  Description: A handy convenience template function that extracts a
00021 //               parameter of the indicated type from the
00022 //               FactoryParams list.  If the parameter type is found,
00023 //               it fills the pointer and returns true; otherwise, it
00024 //               sets the pointer to NULL and returns false.
00025 ////////////////////////////////////////////////////////////////////
00026 template<class ParamType>
00027 bool get_param_into(ParamType *&pointer, const FactoryParams &params) {
00028   FactoryParam *param =
00029     params.get_param_of_type(ParamType::get_class_type());
00030   if (param == (FactoryParam *)NULL) {
00031     pointer = NULL;
00032     return false;
00033   }
00034   DCAST_INTO_R(pointer, param, false);
00035   return true;
00036 }
 All Classes Functions Variables Enumerations