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

java.lang.Object
  wicket.Resource
      wicket.markup.html.WebResource
          wicket.markup.html.DynamicWebResource
              wicket.markup.html.image.resource.DynamicImageResource
                  wicket.extensions.markup.html.image.resource.ThumbnailImageResource

All Implemented Interfaces:

wicket.IRequestListener, wicket.IResourceListener, java.io.Serializable

public class ThumbnailImageResource

extends wicket.markup.html.image.resource.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

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class wicket.markup.html.DynamicWebResource

wicket.markup.html.DynamicWebResource.ResourceState

Field Summary

Fields inherited from interface wicket.IResourceListener

INTERFACE

Constructor Summary

ThumbnailImageResource(wicket.markup.html.WebResource unscaledImageResource, int maxSize)
Construct.

Method Summary

protected byte[]	getImageData()
protected java.awt.image.BufferedImage	getScaledImageInstance() get resized image instance.
void	invalidate()
void	setScaleHints(int scaleHints) Sets hint(s) for the scale operation.

Methods inherited from class wicket.markup.html.image.resource.DynamicImageResource

getFormat, getResourceState, setFormat, setLastModifiedTime, toImageData

Methods inherited from class wicket.markup.html.DynamicWebResource

getLocale, getResourceStream

Methods inherited from class wicket.markup.html.WebResource

configureResponse, setHeaders

Methods inherited from class wicket.Resource

getParameters, isCacheable, onResourceRequested, setCacheable, setParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

ThumbnailImageResource

public ThumbnailImageResource(wicket.markup.html.WebResource 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()

Returns:

The image data for this dynamic image

getScaledImageInstance

protected final java.awt.image.BufferedImage getScaledImageInstance()

get resized image instance.

Returns:

BufferedImage

setScaleHints

public final void setScaleHints(int scaleHints)

Sets hint(s) for the scale operation.

Parameters:

scaleHints - hint(s) for the scale operation

invalidate

public void invalidate()

See Also:

Resource.invalidate()