Package com.bc.ceres.glayer.support

Class LayerViewInvalidationListener

java.lang.Object

com.bc.ceres.glayer.support.AbstractLayerListener

com.bc.ceres.glayer.support.LayerViewInvalidationListener

All Implemented Interfaces:

LayerListener

public abstract class LayerViewInvalidationListener
extends AbstractLayerListener

An LayerListener implementation which delegates a visible layer changes to the abstract handleViewInvalidation(com.bc.ceres.glayer.Layer, java.awt.geom.Rectangle2D) handler.

Version:

$revision$ $date$

Constructor Summary

Constructors

Constructor	Description
LayerViewInvalidationListener()

Method Summary

Modifier and Type	Method	Description
void	handleLayerDataChanged(Layer layer, Rectangle2D modelRegion)	Called if the data of the given layer has changed.
void	handleLayerPropertyChanged(Layer layer, PropertyChangeEvent propertyChangeEvent)	Called if a property of the given layer has changed.
void	handleLayersAdded(Layer parentLayer, Layer[] childLayers)	Called if a new layer has been added to a collection layer.
void	handleLayersRemoved(Layer parentLayer, Layer[] childLayers)	Called if an existing layer has been removed from a collection layer.
protected abstract void	handleViewInvalidation(Layer layer, Rectangle2D modelRegion)	Called if a visible layer change occurred.

Methods inherited from class com.bc.ceres.glayer.support.AbstractLayerListener

isVisibleChangeEvent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LayerViewInvalidationListener

public LayerViewInvalidationListener()

Method Detail

handleLayerPropertyChanged

public void handleLayerPropertyChanged(Layer layer,
                                       PropertyChangeEvent propertyChangeEvent)

Called if a property of the given layer has changed. Calls handleViewInvalidation(com.bc.ceres.glayer.Layer, java.awt.geom.Rectangle2D) only if the change event is visible.

Specified by:

handleLayerPropertyChanged in interface LayerListener

Overrides:

handleLayerPropertyChanged in class AbstractLayerListener

Parameters:

layer - The layer.

propertyChangeEvent - The layer property change event. May be null, if the entire style changed.

handleLayerDataChanged

public void handleLayerDataChanged(Layer layer,
                                   Rectangle2D modelRegion)

Called if the data of the given layer has changed. Calls handleViewInvalidation(com.bc.ceres.glayer.Layer, java.awt.geom.Rectangle2D).

Specified by:

handleLayerDataChanged in interface LayerListener

Overrides:

handleLayerDataChanged in class AbstractLayerListener

Parameters:

layer - The layer.

modelRegion - The region in model coordinates which are affected by the change. May be null, if not available.

handleLayersAdded

public void handleLayersAdded(Layer parentLayer,
                              Layer[] childLayers)

Called if a new layer has been added to a collection layer. Calls handleViewInvalidation(com.bc.ceres.glayer.Layer, java.awt.geom.Rectangle2D).

Specified by:

handleLayersAdded in interface LayerListener

Overrides:

handleLayersAdded in class AbstractLayerListener

Parameters:

parentLayer - The parent layer.

childLayers - The child layers added.

handleLayersRemoved

public void handleLayersRemoved(Layer parentLayer,
                                Layer[] childLayers)

Called if an existing layer has been removed from a collection layer. Calls handleViewInvalidation(com.bc.ceres.glayer.Layer, java.awt.geom.Rectangle2D).

Specified by:

handleLayersRemoved in interface LayerListener

Overrides:

handleLayersRemoved in class AbstractLayerListener

Parameters:

parentLayer - The parent layer.

childLayers - The child layers removed.

handleViewInvalidation

protected abstract void handleViewInvalidation(Layer layer,
                                               Rectangle2D modelRegion)

Called if a visible layer change occurred.

Parameters:

layer - The layer.

modelRegion - The region in model coordinates which are affected by the change. May be null, if not available.