timoore
8f46f2cac8
Also, add a NodeAndDrawableVisitor that descends into osg::Drawable. That motivation for this is that it's a bad idea to modify state sets that the osgDB::SharedStateManager might be keeping.
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
/* -*-c++-*-
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*
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* Copyright (C) 2008 Tim Moore
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* 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,
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* MA 02110-1301, USA.
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*
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*/
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#include <osg/Drawable>
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#include <osg/Geode>
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#include "NodeAndDrawableVisitor.hxx"
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namespace simgear
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{
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using namespace osg;
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NodeAndDrawableVisitor::NodeAndDrawableVisitor(NodeVisitor::TraversalMode tm) :
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NodeVisitor(tm)
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{
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}
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NodeAndDrawableVisitor::NodeAndDrawableVisitor(NodeVisitor::VisitorType type,
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NodeVisitor::TraversalMode tm) :
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NodeVisitor(type, tm)
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{
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}
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NodeAndDrawableVisitor::~NodeAndDrawableVisitor()
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{
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}
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void NodeAndDrawableVisitor::apply(Node& node)
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{
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traverse(node);
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}
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void NodeAndDrawableVisitor::apply(Drawable& Drawable)
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{
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}
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void NodeAndDrawableVisitor::traverse(Node& node)
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{
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TraversalMode tm = getTraversalMode();
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if (tm == TRAVERSE_NONE) {
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return;
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} else if (tm == TRAVERSE_PARENTS) {
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NodeVisitor::traverse(node);
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return;
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}
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Geode* geode = dynamic_cast<Geode*>(&node);
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if (geode) {
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unsigned numDrawables = geode->getNumDrawables();
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for (unsigned i = 0; i < numDrawables; ++i)
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apply(*geode->getDrawable(i));
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} else {
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NodeVisitor::traverse(node);
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}
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}
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}
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