net.databinder.components
Class RenderedLabel.RenderedTextImageResource

java.lang.Object
  org.apache.wicket.Resource
      org.apache.wicket.markup.html.WebResource
          org.apache.wicket.markup.html.DynamicWebResource
              org.apache.wicket.markup.html.image.resource.DynamicImageResource
                  org.apache.wicket.markup.html.image.resource.RenderedDynamicImageResource
                      net.databinder.components.RenderedLabel.RenderedTextImageResource

All Implemented Interfaces:

java.io.Serializable, org.apache.wicket.IClusterable, org.apache.wicket.IRequestListener, org.apache.wicket.IResourceListener

Direct Known Subclasses:

BatikRenderedLabel.BatikRenderedTextImageResource, FormattedRenderedTextImageResource

Enclosing class:

RenderedLabel

public static class RenderedLabel.RenderedTextImageResource
extends org.apache.wicket.markup.html.image.resource.RenderedDynamicImageResource

Inner class that renders the model text into an image resource.

See Also:

Serialized Form

Nested Class Summary

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

org.apache.wicket.markup.html.DynamicWebResource.ResourceState

Field Summary

protected boolean	antiAliased
protected java.awt.Color	backgroundColor
protected java.awt.Color	color
protected java.awt.Font	font
protected java.lang.Integer	maxWidth
protected java.lang.String	text

Fields inherited from interface org.apache.wicket.IResourceListener

INTERFACE

Constructor Summary

protected

RenderedLabel.RenderedTextImageResource()

Method Summary

protected java.util.List<java.text.AttributedCharacterIterator>	getAttributedLines()
void	preload() Normally, image rendering is deferred until the resource is requested, but this method allows us to render the image when its markup is rendered.
protected boolean	render(java.awt.Graphics2D graphics) Renders text into image.
protected void	setHeaders(org.apache.wicket.protocol.http.WebResponse response)
void	setState(RenderedLabel label)

Methods inherited from class org.apache.wicket.markup.html.image.resource.RenderedDynamicImageResource

getHeight, getImageData, getType, getWidth, invalidate, render, setHeight, setType, setWidth

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

getFormat, getResourceState, setFormat, setLastModifiedTime, toImageData

Methods inherited from class org.apache.wicket.markup.html.DynamicWebResource

getLocale, getResourceStream

Methods inherited from class org.apache.wicket.markup.html.WebResource

configureResponse, getCacheDuration

Methods inherited from class org.apache.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

Field Detail

backgroundColor

protected java.awt.Color backgroundColor

color

protected java.awt.Color color

font

protected java.awt.Font font

maxWidth

protected java.lang.Integer maxWidth

text

protected java.lang.String text

antiAliased

protected boolean antiAliased

Constructor Detail

RenderedLabel.RenderedTextImageResource

protected RenderedLabel.RenderedTextImageResource()

Method Detail

setHeaders

protected void setHeaders(org.apache.wicket.protocol.http.WebResponse response)

Overrides:

setHeaders in class org.apache.wicket.markup.html.DynamicWebResource

setState

public void setState(RenderedLabel label)

render

protected boolean render(java.awt.Graphics2D graphics)

Renders text into image. Will increase dimensions and return false if needed to accomodate text. Neither dimension will be decreased, unless the text in blank. Blank text is rendered as a 1 x 1 pixel square, with prior dimensions discarded.

Specified by:

render in class org.apache.wicket.markup.html.image.resource.RenderedDynamicImageResource

getAttributedLines

protected java.util.List<java.text.AttributedCharacterIterator> getAttributedLines()

Returns:

String to be rendered with attributes (global font only in this base class).

preload

public void preload()

Normally, image rendering is deferred until the resource is requested, but this method allows us to render the image when its markup is rendered. This way the model will not need to be reattached when we serve the image, and we can use the size information in the IMG tag.