FGFS-4.1/OpenSceneGraph
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Refactor various NodeTracker and MatrixManipulator classes to use the osg::ObserverNodePath and osg::oberserver_ptr<> classes

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This commit is contained in:
Robert Osfield
2010-02-15 20:15:32 +00:00
parent 4a567d9954
commit ff38da1290
10 changed files with 92 additions and 151 deletions
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118
src/osgGA/NodeTrackerManipulator.cpp
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@@ -36,32 +36,39 @@ NodeTrackerManipulator::~NodeTrackerManipulator()
{
}
osg::NodePath NodeTrackerManipulator::getNodePath() const
void NodeTrackerManipulator::setTrackNode(osg::Node* node)
{
osg::NodePath nodePath;
for(ObserverNodePath::const_iterator itr = _trackNodePath.begin();
itr != _trackNodePath.end();
++itr)
if (!node)
{
nodePath.push_back(const_cast<osg::Node*>(itr->get()));
osg::notify(osg::NOTICE)<<"NodeTrackerManipulator::setTrackNode(Node*): Unable to set tracked node due to null Node*"<<std::endl;
return;
}
osg::NodePathList parentNodePaths = node->getParentalNodePaths();
if (!parentNodePaths.empty())
{
osg::notify(osg::INFO)<<"NodeTrackerManipulator::setTrackNode(Node*): Path set"<<std::endl;
setTrackNodePath(parentNodePaths[0]);
}
else
{
osg::notify(osg::NOTICE)<<"NodeTrackerManipulator::setTrackNode(Node*): Unable to set tracked node due to empty parental path."<<std::endl;
}
return nodePath;
}
bool NodeTrackerManipulator::validateNodePath() const
osg::Node* NodeTrackerManipulator::getTrackNode()
{
for(ObserverNodePath::const_iterator itr = _trackNodePath.begin();
itr != _trackNodePath.begin();
++itr)
{
if (*itr==0)
{
osg::notify(osg::NOTICE)<<"Warning: tracked node path has been invalidated by changes in the scene graph."<<std::endl;
const_cast<ObserverNodePath&>(_trackNodePath).clear();
return false;
}
}
return true;
osg::NodePath nodePath;
if (_trackNodePath.getNodePath(nodePath)) return nodePath.back();
else return 0;
}
const osg::Node* NodeTrackerManipulator::getTrackNode() const
{
osg::NodePath nodePath;
if (_trackNodePath.getNodePath(nodePath)) return nodePath.back();
else return 0;
}
void NodeTrackerManipulator::setTrackerMode(TrackerMode mode)
@@ -92,39 +99,6 @@ void NodeTrackerManipulator::setNode(osg::Node* node)
if (getAutoComputeHomePosition()) computeHomePosition();
}
void NodeTrackerManipulator::setTrackNode(osg::Node* node)
{
if (!node)
{
osg::notify(osg::NOTICE)<<"NodeTrackerManipulator::setTrackNode(Node*): Unable to set tracked node due to null Node*"<<std::endl;
return;
}
osg::NodePathList nodePaths = node->getParentalNodePaths();
if (!nodePaths.empty())
{
if (nodePaths.size()>1)
{
osg::notify(osg::NOTICE)<<"osgGA::NodeTrackerManipualtor::setTrackNode(..) taking first parent path, ignoring others."<<std::endl;
}
osg::notify(osg::INFO)<<"NodeTrackerManipulator::setTrackNode(Node*"<<node<<" "<<node->getName()<<"): Path set"<<std::endl;
_trackNodePath.clear();
setTrackNodePath( nodePaths.front() );
}
else
{
osg::notify(osg::NOTICE)<<"NodeTrackerManipulator::setTrackNode(Node*): Unable to set tracked node due to empty parental path."<<std::endl;
}
osg::notify(osg::INFO)<<"setTrackNode("<<node->getName()<<")"<<std::endl;
for(unsigned int i=0; i<_trackNodePath.size(); ++i)
{
osg::notify(osg::INFO)<<" "<<_trackNodePath[i]->className()<<" '"<<_trackNodePath[i]->getName()<<"'"<<std::endl;
}
}
const osg::Node* NodeTrackerManipulator::getNode() const
{
return _node.get();
@@ -147,7 +121,10 @@ void NodeTrackerManipulator::home(const GUIEventAdapter& ,GUIActionAdapter& us)
void NodeTrackerManipulator::computeHomePosition()
{
osg::Node* node = _trackNodePath.empty() ? getNode() : _trackNodePath.back().get();
osg::NodePath nodePath;
_trackNodePath.getNodePath(nodePath);
osg::Node* node = nodePath.empty() ? getNode() : nodePath.back();
if(node)
{
@@ -299,35 +276,22 @@ void NodeTrackerManipulator::setByMatrix(const osg::Matrixd& matrix)
computePosition(eye,center,up);
}
void NodeTrackerManipulator::computeNodeWorldToLocal(osg::Matrixd& worldToLocal) const
{
if (validateNodePath())
{
worldToLocal = osg::computeWorldToLocal(getNodePath());
}
}
void NodeTrackerManipulator::computeNodeLocalToWorld(osg::Matrixd& localToWorld) const
{
if (validateNodePath())
{
localToWorld = osg::computeLocalToWorld(getNodePath());
}
}
void NodeTrackerManipulator::computeNodeCenterAndRotation(osg::Vec3d& nodeCenter, osg::Quat& nodeRotation) const
{
osg::Matrixd localToWorld, worldToLocal;
computeNodeLocalToWorld(localToWorld);
computeNodeWorldToLocal(worldToLocal);
if (validateNodePath())
nodeCenter = osg::Vec3d(_trackNodePath.back()->getBound().center())*localToWorld;
osg::NodePath nodePath;
if (_trackNodePath.getNodePath(nodePath))
{
worldToLocal = osg::computeWorldToLocal(nodePath);
localToWorld = osg::computeLocalToWorld(nodePath);
nodeCenter = osg::Vec3d(nodePath.back()->getBound().center())*localToWorld;
}
else
{
nodeCenter = osg::Vec3d(0.0f,0.0f,0.0f)*localToWorld;
}
switch(_trackerMode)
{
case(NODE_CENTER_AND_AZIM):