68 lines
2.6 KiB
C++
68 lines
2.6 KiB
C++
/* -*-c++-*-
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* Copyright (C) 2009 Cedric Pinson <cedric.pinson@plopbyte.net>
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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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
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* OpenSceneGraph Public License for more details.
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*/
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#include <osgAnimation/UpdateMatrixTransform>
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#include <osg/NodeVisitor>
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#include <osg/MatrixTransform>
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using namespace osgAnimation;
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UpdateMatrixTransform::UpdateMatrixTransform( const UpdateMatrixTransform& apc,const osg::CopyOp& copyop) : osg::Object(apc,copyop), AnimationUpdateCallback<osg::NodeCallback>(apc, copyop)
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{
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_transforms = StackedTransform(apc.getStackedTransforms(), copyop);
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}
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UpdateMatrixTransform::UpdateMatrixTransform(const std::string& name) : AnimationUpdateCallback<osg::NodeCallback>(name)
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{
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}
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/** Callback method called by the NodeVisitor when visiting a node.*/
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void UpdateMatrixTransform::operator()(osg::Node* node, osg::NodeVisitor* nv)
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{
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if (nv && nv->getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
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{
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osg::MatrixTransform* matrixTransform = dynamic_cast<osg::MatrixTransform*>(node);
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if (matrixTransform)
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{
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// here we would prefer to have a flag inside transform stack in order to avoid update and a dirty state in matrixTransform if it's not require.
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_transforms.update();
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const osg::Matrix& matrix = _transforms.getMatrix();
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matrixTransform->setMatrix(matrix);
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}
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}
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traverse(node,nv);
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}
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bool UpdateMatrixTransform::link(osgAnimation::Channel* channel)
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{
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const std::string& channelName = channel->getName();
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// check if we can link a StackedTransformElement to the current Channel
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for (StackedTransform::iterator it = _transforms.begin(); it != _transforms.end(); ++it)
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{
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StackedTransformElement* element = it->get();
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if (element && !element->getName().empty() && channelName == element->getName())
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{
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Target* target = element->getOrCreateTarget();
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if (target && channel->setTarget(target))
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return true;
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}
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}
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OSG_INFO << "UpdateMatrixTransform::link Channel " << channel->getName() << " does not contain a symbolic name that can be linked to a StackedTransformElement." << std::endl;
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return false;
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}
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