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Futher work on adding event and update callbacks to StateSet, Uniform and StateAttributes

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This commit is contained in:
Robert Osfield
2005-04-25 11:05:02 +00:00
parent 193c83cb9c
commit bc83e63bb4
8 changed files with 220 additions and 30 deletions
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36
include/osgUtil/UpdateVisitor
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@@ -69,33 +69,43 @@ class OSGUTIL_EXPORT UpdateVisitor : public osg::NodeVisitor
/** Prevent unwanted copy operator.*/
UpdateVisitor& operator = (const UpdateVisitor&) { return *this; }
inline void handle_callbacks(osg::StateSet* stateset)
{
if (stateset && stateset->requiresUpdateTraversal())
{
stateset->runUpdateCallbacks(this);
}
}
inline void handle_callbacks_and_traverse(osg::Node& node)
{
handle_callbacks(node.getStateSet());
osg::NodeCallback* callback = node.getUpdateCallback();
if (callback) (*callback)(&node,this);
else if (node.getNumChildrenRequiringUpdateTraversal()>0) traverse(node);
}
inline void handle_geode_callbacks(osg::Geode& node)
inline void handle_geode_callbacks(osg::Geode& geode)
{
osg::NodeCallback* callback = node.getUpdateCallback();
if (callback) (*callback)(&node,this);
/*else if (node.getNumChildrenRequiringUpdateTraversal()>0)*/
traverseGeode(node);
}
inline void traverseGeode(osg::Geode& geode)
{
traverse((osg::Node&)geode);
handle_callbacks(geode.getStateSet());
osg::NodeCallback* callback = geode.getUpdateCallback();
if (callback) (*callback)(&geode,this);
// Call the app callbacks on the drawables.
for(unsigned int i=0;i<geode.getNumDrawables();++i)
{
osg::Drawable::UpdateCallback* callback = geode.getDrawable(i)->getUpdateCallback();
if (callback) callback->update(this,geode.getDrawable(i));
handle_callbacks(geode.getDrawable(i)->getStateSet());
}
}
// should we traverse just in case a subclass of Geode adds children?? Won't for now as
// Geode's arn't designed to have children.
// traverse(geode);
}
};
}