37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
// Filename: factoryParams.I
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// Created by: drose (08May00)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#include "pnotify.h"
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////////////////////////////////////////////////////////////////////
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// Function: get_param_into
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// Description: A handy convenience template function that extracts a
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// parameter of the indicated type from the
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// FactoryParams list. If the parameter type is found,
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// it fills the pointer and returns true; otherwise, it
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// sets the pointer to NULL and returns false.
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////////////////////////////////////////////////////////////////////
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template<class ParamType>
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bool get_param_into(ParamType *&pointer, const FactoryParams ¶ms) {
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FactoryParam *param =
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params.get_param_of_type(ParamType::get_class_type());
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if (param == (FactoryParam *)NULL) {
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pointer = NULL;
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return false;
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}
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DCAST_INTO_R(pointer, param, false);
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return true;
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}
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