ilog.cpl.graphic.views

Interface IlpZoomPolicy

All Known Implementing Classes:

IltLogicalZoomPolicy, IltMixedZoomPolicy, IltPhysicalZoomPolicy, IltZoomPolicy

public interface IlpZoomPolicy

This interface controls the behavior of the zoom on JTGO views.

Implementations exist that provide physical and logical zooms. An instance of this class is associated with every IlvManager instance. It receives an event when the zoom transformer of any view changes.

Note: This interface is subject to change in future versions.

Since:

JTGO 3.0

Method Summary

Modifier and Type	Method and Description
void	attach() This function is called when the policy is attached to a manager.
void	attachView(IlvManagerView view) This function is called when a view is added to the manager to which this instance is attached.
void	detach() This function is called when the policy is detached from its manager.
void	detachView(IlvManagerView view) This function is called when a view is removed from the manager to which this instance is attached.
void	zoomTransformerChanged(IlvManagerView view, IlvTransformer oldTransformer, IlvTransformer newTransformer) This function is called when a zoom change occurs.

Method Detail

attach

void attach()

This function is called when the policy is attached to a manager. The manager is already accessible as getManager(). You should not call this method directly.

detach

void detach()

This function is called when the policy is detached from its manager. The manager is still accessible as getManager(). You should not call this method directly.

attachView

void attachView(IlvManagerView view)

This function is called when a view is added to the manager to which this instance is attached.

detachView

void detachView(IlvManagerView view)

This function is called when a view is removed from the manager to which this instance is attached.

zoomTransformerChanged

void zoomTransformerChanged(IlvManagerView view,
                            IlvTransformer oldTransformer,
                            IlvTransformer newTransformer)

This function is called when a zoom change occurs. You should not call this method directly.

Parameters:

view - the target view

oldTransformer - the manager's old zoom transformer

newTransformer - the manager's new zoom transformer