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From Sukender, (Benoit Neil) "adding a few convinience methods to osg::Node (ouch!). Just tell me if you find them useful:

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/** Convinience method that sets the update callback of the node if it doesn't exist, or nest it into the existing one. */
void addUpdateCallback(NodeCallback* nc);

/** Convinience method that removes a given callback from a node, even if that callback is nested. There is no error return in case the given callback is not found. */
void removeUpdateCallback(NodeCallback* nc);

... and the same for Event and Cull callbacks methods."
This commit is contained in:
Robert Osfield
2008-12-03 14:13:59 +00:00
parent 4957d7bb55
commit fe439b3707
1 changed files with 39 additions and 3 deletions
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42
include/osg/Node
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@@ -146,20 +146,44 @@ class OSG_EXPORT Node : public Object
/** Get const update node callback, called during update traversal. */
inline const NodeCallback* getUpdateCallback() const { return _updateCallback.get(); }
/** Convenience method that sets the update callback of the node if it doesn't exist, or nest it into the existing one. */
void addUpdateCallback(NodeCallback* nc) {
if (_updateCallback.valid()) _updateCallback->addNestedCallback(nc);
else setUpdateCallback(nc);
}
/** Convenience method that removes a given callback from a node, even if that callback is nested. There is no error return in case the given callback is not found. */
void removeUpdateCallback(NodeCallback* nc) {
if (_updateCallback == nc) setUpdateCallback(nc->getNestedCallback()); // replace the callback by the nested one
else _updateCallback->removeNestedCallback(nc);
}
/** Get the number of Children of this node which require Update traversal,
* since they have an Update Callback attached to them or their children.*/
inline unsigned int getNumChildrenRequiringUpdateTraversal() const { return _numChildrenRequiringUpdateTraversal; }
/** Set update node callback, called during update traversal. */
/** Set event node callback, called during event traversal. */
void setEventCallback(NodeCallback* nc);
/** Get update node callback, called during update traversal. */
/** Get event node callback, called during event traversal. */
inline NodeCallback* getEventCallback() { return _eventCallback.get(); }
/** Get const update node callback, called during update traversal. */
/** Get const event node callback, called during event traversal. */
inline const NodeCallback* getEventCallback() const { return _eventCallback.get(); }
/** Convenience method that sets the event callback of the node if it doesn't exist, or nest it into the existing one. */
void addEventCallback(NodeCallback* nc) {
if (_eventCallback.valid()) _eventCallback->addNestedCallback(nc);
else setEventCallback(nc);
}
/** Convenience method that removes a given callback from a node, even if that callback is nested. There is no error return in case the given callback is not found. */
void removeEventCallback(NodeCallback* nc) {
if (_eventCallback == nc) setEventCallback(nc->getNestedCallback()); // replace the callback by the nested one
else _eventCallback->removeNestedCallback(nc);
}
/** Get the number of Children of this node which require Event traversal,
* since they have an Event Callback attached to them or their children.*/
inline unsigned int getNumChildrenRequiringEventTraversal() const { return _numChildrenRequiringEventTraversal; }
@@ -174,6 +198,18 @@ class OSG_EXPORT Node : public Object
/** Get const cull node callback, called during cull traversal. */
inline const NodeCallback* getCullCallback() const { return _cullCallback.get(); }
/** Convenience method that sets the cull callback of the node if it doesn't exist, or nest it into the existing one. */
void addCullCallback(NodeCallback* nc) {
if (_cullCallback.valid()) _cullCallback->addNestedCallback(nc);
else setCullCallback(nc);
}
/** Convenience method that removes a given callback from a node, even if that callback is nested. There is no error return in case the given callback is not found. */
void removeCullCallback(NodeCallback* nc) {
if (_cullCallback == nc) setCullCallback(nc->getNestedCallback()); // replace the callback by the nested one
else _cullCallback->removeNestedCallback(nc);
}
/** Set the view frustum/small feature culling of this node to be active or inactive.
* The default value is true for _cullingActive. Used as a guide
* to the cull traversal.*/