1 // Copyright (C) 2010 James Turner - zakalawe@mac.com
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Library General Public
5 // License as published by the Free Software Foundation; either
6 // version 2 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Library General Public License for more details.
13 // You should have received a copy of the GNU General Public License
14 // along with this program; if not, write to the Free Software
15 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 # include "simgear_config.h"
22 #include "propertyObject.hxx"
24 #include <simgear/math/SGMath.hxx>
26 #include <simgear/structure/exception.hxx>
31 SGPropertyNode* static_defaultRoot = NULL;
33 void PropertyObjectBase::setDefaultRoot(SGPropertyNode* aRoot)
35 static_defaultRoot = aRoot;
38 PropertyObjectBase::PropertyObjectBase() :
45 PropertyObjectBase::PropertyObjectBase(const PropertyObjectBase& aOther) :
52 PropertyObjectBase::PropertyObjectBase(const char* aChild) :
58 PropertyObjectBase::PropertyObjectBase(SGPropertyNode* aNode, const char* aChild) :
65 SGPropertyNode* PropertyObjectBase::node(bool aCreate) const
67 if (_path == NULL) { // already resolved
71 SGPropertyNode* r = _prop ? _prop : static_defaultRoot;
72 _prop = r->getNode(_path, aCreate);
75 // resolve worked, we will cache from now on, so clear _path
82 SGPropertyNode* PropertyObjectBase::getOrThrow() const
84 SGPropertyNode* n = node(false);
88 path = _prop->getPath();
98 throw sg_exception("Unknown property:" + path);
104 } // of namespace simgear