Package com.bc.ceres.multilevel.support

Class GenericMultiLevelSource

java.lang.Object

com.bc.ceres.multilevel.support.AbstractMultiLevelSource

com.bc.ceres.multilevel.support.GenericMultiLevelSource

All Implemented Interfaces:

MultiLevelSource

public abstract class GenericMultiLevelSource
extends AbstractMultiLevelSource

A GenericMultiLevelSource is a MultiLevelSource computing its images at a given resolution level from a number of source images of the same level.

Subclasses will have to to implement createImage(java.awt.image.RenderedImage[], int).

Version:

$revision$ $date$

Field Summary

Fields inherited from interface com.bc.ceres.multilevel.MultiLevelSource

NULL

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	GenericMultiLevelSource(MultiLevelSource multiLevelSource)
protected	GenericMultiLevelSource(MultiLevelSource[] multiLevelSources)

Method Summary

Modifier and Type	Method	Description
protected RenderedImage	createImage(int level)	Called by AbstractMultiLevelSource.getImage(int) if a level image is requested for the first time.
protected abstract RenderedImage	createImage(RenderedImage[] sourceImages, int level)
MultiLevelSource[]	getMultiLevelSources()

Methods inherited from class com.bc.ceres.multilevel.support.AbstractMultiLevelSource

checkLevel, getImage, getImageShape, getModel, reset

Methods inherited from class java.lang.Object

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

Constructor Details

GenericMultiLevelSource

protected GenericMultiLevelSource(MultiLevelSource multiLevelSource)

GenericMultiLevelSource

protected GenericMultiLevelSource(MultiLevelSource[] multiLevelSources)

Method Details

getMultiLevelSources

public MultiLevelSource[] getMultiLevelSources()

createImage

protected RenderedImage createImage(int level)

Description copied from class: AbstractMultiLevelSource

Called by AbstractMultiLevelSource.getImage(int) if a level image is requested for the first time. Note that images created via this method will be disposed when AbstractMultiLevelSource.reset() is called on this multi-level image source. See AbstractMultiLevelSource.getImage(int).

The dimension of the level image created must be the same as that obtained from {DefaultMultiLevelSource.getLevelImageBounds(Rectangle sourceBounds, double scale)} for the scale associated with the given resolution level.

Specified by:

createImage in class AbstractMultiLevelSource

Parameters:

level - The resolution level.

Returns:

An instance of a RenderedImage for the given resolution level.

createImage

protected abstract RenderedImage createImage(RenderedImage[] sourceImages,
 int level)