FGFS-4.1/OpenSceneGraph
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Added camera event callback support into osgViewer

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This commit is contained in:
Robert Osfield
2007-05-27 17:29:29 +00:00
parent a49ec6e78d
commit 784383ac08
6 changed files with 107 additions and 15 deletions
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40
src/osgViewer/Viewer.cpp
View File

@@ -2033,10 +2033,25 @@ void Viewer::eventTraversal()
_eventVisitor->addEvent( event );
getSceneData()->accept(*_eventVisitor);
// call any camera update callbacks, but only traverse that callback, don't traverse its subgraph
// leave that to the scene update traversal.
osg::NodeVisitor::TraversalMode tm = _eventVisitor->getTraversalMode();
_eventVisitor->setTraversalMode(osg::NodeVisitor::TRAVERSE_NONE);
if (_camera.valid() && _camera->getEventCallback()) _camera->accept(*_eventVisitor);
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
osg::Camera* camera = getSlave(i)._camera.get();
if (camera && camera->getEventCallback()) camera->accept(*_eventVisitor);
}
_eventVisitor->setTraversalMode(tm);
}
}
if (getStats() && getStats()->collectStats("event"))
{
double endEventTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
@@ -2056,18 +2071,27 @@ void Viewer::updateTraversal()
double beginUpdateTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
osgUtil::UpdateVisitor* uv = _scene.valid() ? _scene->getUpdateVisitor() : 0;
// do the update traversal of the scene.
if (_scene.valid()) _scene->updateTraversal();
if (_camera.valid() && _camera->getUpdateCallback() && uv)
osgUtil::UpdateVisitor* uv = _scene.valid() ? _scene->getUpdateVisitor() : 0;
if (uv)
{
// call any camera update callbacks, but only traverse that callback, don't traverse its subgraph
// leave that to the scene update traversal.
osg::NodeVisitor::TraversalMode tm = uv->getTraversalMode();
uv->setTraversalMode(osg::NodeVisitor::TRAVERSE_NONE);
_camera->accept(*uv);
uv->setTraversalMode(tm);
}
if (_scene.valid()) _scene->frameUpdateTraversal();
if (_camera.valid() && _camera->getUpdateCallback()) _camera->accept(*uv);
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
osg::Camera* camera = getSlave(i)._camera.get();
if (camera && camera->getUpdateCallback()) camera->accept(*uv);
}
uv->setTraversalMode(tm);
}
if (_cameraManipulator.valid())
{