wicket.extensions.markup.html.captcha
Class CaptchaImageResource

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

All Implemented Interfaces:

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

public final class CaptchaImageResource
extends wicket.markup.html.image.resource.DynamicImageResource

Generates a captcha image.

Author:

Joshua Perlow

See Also:

Serialized Form

Nested Class Summary

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

wicket.markup.html.DynamicWebResource.ResourceState

Field Summary

Fields inherited from interface wicket.IResourceListener

INTERFACE

Constructor Summary

CaptchaImageResource()
Construct.

CaptchaImageResource(java.lang.String challengeId)
Construct.

CaptchaImageResource(java.lang.String challengeId, int fontSize, int margin)
Construct.

Method Summary

java.lang.String	getChallengeId() Gets the id for the challenge.
protected byte[]	getImageData()
void	invalidate() Causes the image to be redrawn the next time its requested.

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

CaptchaImageResource

public CaptchaImageResource()

Construct.

CaptchaImageResource

public CaptchaImageResource(java.lang.String challengeId)

Construct.

Parameters:

challengeId - The id of the challenge

CaptchaImageResource

public CaptchaImageResource(java.lang.String challengeId,
                            int fontSize,
                            int margin)

Construct.

Parameters:

challengeId - The id of the challenge

fontSize - The font size

margin - The image's margin

Method Detail

getChallengeId

public final java.lang.String getChallengeId()

Gets the id for the challenge.

Returns:

The the id for the challenge

invalidate

public final void invalidate()

Causes the image to be redrawn the next time its requested.

Overrides:

invalidate in class wicket.Resource

See Also:

Resource.invalidate()

getImageData

protected final byte[] getImageData()

Specified by:

getImageData in class wicket.markup.html.image.resource.DynamicImageResource

See Also:

DynamicImageResource.getImageData()