IlvManagerLinearTransitionHandler Class Reference

Transition handler class. More...

#include <ilviews/manager/transition.h>

Inheritance diagram for IlvManagerLinearTransitionHandler:

Public Member Functions
	IlvManagerLinearTransitionHandler (IlBoolean partialRedraw=IlTrue)
	Constructor. More...
virtual void	computeTransformers (IlDouble oldRate, IlDouble newRate, const IlvTransformer &from, const IlvTransformer &to, IlvTransformer &oldT, IlvTransformer &curT) const
	Called to compute the intermediate transformers. More...
virtual void	doManagerTransition (IlvManager &manager, IlvView &view, const IlvTransformer &from, const IlvTransformer &to, const IlvTransformer &current, const IlvTransformer &next)
	Called to do the transition from current to next transformers. More...
Public Member Functions inherited from IlvManagerTransitionHandler
IlBoolean	isUsingPartialRedraw () const
	Returns IlTrue if this transition handler is using partial redraw. More...
void	usePartialRedraw (IlBoolean redraw)
	Specifies to the transition handler whether to use partial redraw. More...

Detailed Description

Transition handler class.

Library: ilvmgr

This class handles linear transitions between two transformers. During the transition, it computes intermediate transformers by calling the IlvManagerLinearTransitionHandler::computeTransformers method.

This class can used to give an animation effect when changing the transformer of a view connected to a manager. Instead of using directly manager methods such as IlvManager::setTransformer, you can create an IlvManagerTransitionScheduler with an IlvManagerLinearTransitionHandler. The result will be the same, except that you will see the transitions between the current transformer of the view and the new transformer.

See also

IlvManagerBitmapTransitionHandler, IlvManagerTransitionScheduler

Constructor & Destructor Documentation

IlvManagerLinearTransitionHandler()

IlvManagerLinearTransitionHandler::IlvManagerLinearTransitionHandler

(

IlBoolean

partialRedraw = IlTrue

)

Constructor.

Initializes a new instance of the IlvManagerLinearTransitionHandler class.

Parameters

partialRedraw

A Boolean value specifying whether the transition handler is using partial redraws between transitions.

See also

IlvManagerTransitionHandler::usePartialRedraw

Member Function Documentation

computeTransformers()

virtual void IlvManagerLinearTransitionHandler::computeTransformers ( IlDouble  oldRate, IlDouble  newRate, const IlvTransformer &  from, const IlvTransformer &  to, IlvTransformer &  oldT, IlvTransformer &  curT  ) const

virtual

Called to compute the intermediate transformers.

This method fills the oldT and curT parameters using the given rates of completion of the transition.

Parameters

oldRate	The previous rate of completion of the transition.
newRate	The next rate of completion of the transition.
from	The source transformer.
to	The destination transformer.
oldT	The computed transformer corresponding to oldRate.
curT	The computed transformer corresponding to newRate.

doManagerTransition()

virtual void IlvManagerLinearTransitionHandler::doManagerTransition ( IlvManager &  manager, IlvView &  view, const IlvTransformer &  from, const IlvTransformer &  to, const IlvTransformer &  current, const IlvTransformer &  next  )

virtual

Called to do the transition from current to next transformers.

This method sets the next transformer on the view view, which is connected to the manager manager.

Parameters

manager	The manager.
view	The manager view.
from	The source transformer of the transition.
to	The destination transformer of the transition.
current	The current transformer of the manager view view.
next	The transformer that will be set on the manager view view.