osg::NodeVisitor::ImageRequestHandler Class Reference

Callback for managing image paging, such as generated by PagedLOD nodes. More...

Inheritance diagram for osg::NodeVisitor::ImageRequestHandler:

Public Member Functions
	ImageRequestHandler ()
virtual double	getPreLoadTime () const =0
virtual osg::ref_ptr< osg::Image >	readRefImageFile (const std::string &fileName, const osg::Referenced *options=0)=0
virtual void	requestImageFile (const std::string &fileName, osg::Object *attachmentPoint, int attachmentIndex, double timeToMergeBy, const FrameStamp *framestamp, osg::ref_ptr< osg::Referenced > &imageRequest, const osg::Referenced *options=0)=0
Public Member Functions inherited from osg::Referenced
	Referenced ()
	Referenced (bool threadSafeRefUnref)
	Referenced (const Referenced &)
Referenced &	operator= (const Referenced &)
virtual void	setThreadSafeRefUnref (bool threadSafe)
	Set whether to use a mutex to ensure ref() and unref() are thread safe. More...
bool	getThreadSafeRefUnref () const
	Get whether a mutex is used to ensure ref() and unref() are thread safe. More...
OpenThreads::Mutex *	getRefMutex () const
	Get the mutex used to ensure thread safety of ref()/unref(). More...
int	ref () const
	Increment the reference count by one, indicating that this object has another pointer which is referencing it. More...
int	unref () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...
int	unref_nodelete () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...
int	referenceCount () const
	Return the number of pointers currently referencing this object. More...
ObserverSet *	getObserverSet () const
	Get the ObserverSet if one is attached, otherwise return NULL. More...
ObserverSet *	getOrCreateObserverSet () const
	Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. More...
void	addObserver (Observer *observer) const
	Add a Observer that is observing this object, notify the Observer when this object gets deleted. More...
void	removeObserver (Observer *observer) const
	Remove Observer that is observing this object. More...

Protected Member Functions
virtual	~ImageRequestHandler ()
Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()
void	signalObserversAndDelete (bool signalDelete, bool doDelete) const
void	deleteUsingDeleteHandler () const

Additional Inherited Members
Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
	Get the optional global Referenced mutex, this can be shared between all osg::Referenced. More...
static void	setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
	Set whether reference counting should use a mutex for thread safe reference counting. More...
static bool	getThreadSafeReferenceCounting ()
	Get whether reference counting is active. More...
static void	setDeleteHandler (DeleteHandler *handler)
	Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. More...
static DeleteHandler *	getDeleteHandler ()
	Get a DeleteHandler. More...
Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet
OpenThreads::Atomic	_refCount

Detailed Description

Callback for managing image paging, such as generated by PagedLOD nodes.

Constructor & Destructor Documentation

osg::NodeVisitor::ImageRequestHandler::ImageRequestHandler ( )

inline

virtual osg::NodeVisitor::ImageRequestHandler::~ImageRequestHandler ( )

inlineprotectedvirtual

Member Function Documentation

virtual double osg::NodeVisitor::ImageRequestHandler::getPreLoadTime ( ) const

pure virtual

Implemented in osgDB::ImagePager.

virtual osg::ref_ptr<osg::Image> osg::NodeVisitor::ImageRequestHandler::readRefImageFile ( const std::string &  fileName, const osg::Referenced *  options = 0  )

pure virtual

Implemented in osgDB::ImagePager.

virtual void osg::NodeVisitor::ImageRequestHandler::requestImageFile ( const std::string &  fileName, osg::Object *  attachmentPoint, int  attachmentIndex, double  timeToMergeBy, const FrameStamp *  framestamp, osg::ref_ptr< osg::Referenced > &  imageRequest, const osg::Referenced *  options = 0  )

pure virtual

Implemented in osgDB::ImagePager.

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The documentation for this class was generated from the following file:

• osg/NodeVisitor