83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
// Copyright (C) 2010 Tim Moore (timoore33@gmail.com)
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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#ifdef HAVE_CONFIG_H
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# include <simgear_config.h>
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#endif
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#include "ConditionNode.hxx"
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#include <osgDB/Registry>
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#include <osgDB/Output>
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namespace simgear
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{
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using namespace osg;
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ConditionNode::ConditionNode()
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{
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}
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ConditionNode::ConditionNode(const ConditionNode& rhs, const CopyOp& op)
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: Group(rhs, op), _condition(rhs._condition)
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{
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}
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ConditionNode::~ConditionNode()
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{
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}
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void ConditionNode::traverse(NodeVisitor& nv)
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{
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if (nv.getTraversalMode() == NodeVisitor::TRAVERSE_ACTIVE_CHILDREN) {
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unsigned numChildren = getNumChildren();
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if (numChildren == 0)
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return;
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if (!_condition || _condition->test())
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getChild(0)->accept(nv);
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else if (numChildren > 1)
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getChild(1)->accept(nv);
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else
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return;
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} else {
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Group::traverse(nv);
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}
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}
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namespace
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{
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bool ConditionNode_writeLocalData(const Object& obj, osgDB::Output& fw)
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{
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const ConditionNode& cn = static_cast<const ConditionNode&>(obj);
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// Can't really print out conditions
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fw.indent() << "expression ";
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if (cn.getCondition())
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fw << "yes\n";
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else
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fw << "no\n";
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return true;
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}
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osgDB::RegisterDotOsgWrapperProxy g_ConditionNodeProxy(
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new ConditionNode,
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"simgear::ConditionNode",
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"Object Node simgear::ConditionNode Group",
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0,
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&ConditionNode_writeLocalData);
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}
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}
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