DD::Image::TopDownGraphNotifier Class Reference

Public Member Functions
void	addObserver (TopDownGraphObserver *observer)
	Register an observer so that it can receive topdown rendering events.
void	removeObserver (TopDownGraphObserver *observer)
	Unregister an observer so that it will no longer receive topdown rendering events.
void	graphStarted (TopDownGraphEvaluator *graph)
	Notify observers that a topdown render has started.
void	graphStarted (OpTask *rootTask, Op *rootOp, OpTasks &opTaskMap)
void	graphEnded (TopDownGraphEvaluator *graph)
	Notify observers that a topdown render has finished.
void	taskSpawned (OpTask *task, bool leaf=false)
	Notify observers that a task has been spawned.
void	taskStarted (OpTask *task)
	Notify observers that a task has started executing.
void	taskEnded (OpTask *task)
	Notify observers that a task has finished executing.
void	regionStarted (OpTask *task, int y)
	Notify observers that a scanline op has started rendering the region starting at position y.
void	regionEnded (OpTask *task, int y)
	Notify observers that a scanline op has finished rendering the region ending at position y.

Detailed Description

TopDownGraphNotifier is a class for managing TopDownGraphObserver objects and notifying them about topdown rendering events. Observers must be registered with the addObserver method in order to receive events.

Member Function Documentation

void TopDownGraphNotifier::graphStarted	(	OpTask *	rootTask,
		Op *	rootOp,
		OpTasks &	opTaskMap
	)

Notify observers that a topdown render has started. This version can be used for observers that need access to the full set of tasks that will be executed.