org.apache.wicket.extensions.markup.html.image.resource
Class ThumbnailImageResource

java.lang.Object
  org.apache.wicket.request.resource.AbstractResource
      org.apache.wicket.request.resource.DynamicImageResource
          org.apache.wicket.extensions.markup.html.image.resource.ThumbnailImageResource

All Implemented Interfaces:

Serializable, IResource

public class ThumbnailImageResource
extends DynamicImageResource

Image resource that dynamically scales the given original resource to a thumbnail. It is scaled either using the given maxSize as width or height, depending on its shape. If both the width and height are less than maxSize, no scaling is performed.

Author:

Eelco Hillenius, Eugene Kamenev

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.wicket.request.resource.AbstractResource

AbstractResource.ResourceResponse, AbstractResource.WriteCallback

Nested classes/interfaces inherited from interface org.apache.wicket.request.resource.IResource

IResource.Attributes

Constructor Summary

ThumbnailImageResource(IResource unscaledImageResource, int maxSize)
Construct.

Method Summary

protected byte[]	getImageData(IResource.Attributes attributes)
protected BufferedImage	getScaledImageInstance(IResource.Attributes attributes) get resized image instance.

Methods inherited from class org.apache.wicket.request.resource.DynamicImageResource

configureResponse, getFormat, newResourceResponse, setFormat, setLastModifiedTime, toImageData

Methods inherited from class org.apache.wicket.request.resource.AbstractResource

configureCache, respond

Methods inherited from class java.lang.Object

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

Constructor Detail

ThumbnailImageResource

public ThumbnailImageResource(IResource unscaledImageResource,
                              int maxSize)

Construct.

Parameters:

unscaledImageResource - the unscaled, original image resource. Must be not null

maxSize - maximum size (width or height) for resize operation

Method Detail

getImageData

protected byte[] getImageData(IResource.Attributes attributes)

Specified by:

getImageData in class DynamicImageResource

Returns:

The image data for this dynamic image

getScaledImageInstance

protected final BufferedImage getScaledImageInstance(IResource.Attributes attributes)

get resized image instance.

Parameters:

attributes -

Returns:

BufferedImage