Package org.xhtmlrenderer.swt

Class SWTReplacedElementFactory

java.lang.Object

org.xhtmlrenderer.swt.SWTReplacedElementFactory

All Implemented Interfaces:

ReplacedElementFactory

Direct Known Subclasses:

SWTXhtmlReplacedElementFactory

public class SWTReplacedElementFactory
extends Object
implements ReplacedElementFactory

Author:

Vianney le Clément

Constructor Summary

Constructors

Constructor	Description
SWTReplacedElementFactory()

Method Summary

Modifier and Type	Method	Description
void	clean()	Dispose missing image if created.
ReplacedElement	createReplacedElement(LayoutContext c, BlockBox box, UserAgentCallback uac, int cssWidth, int cssHeight)
protected ReplacedElement	lookupImageReplacedElement(Element e)	Retrieves a ReplacedElement for an image from cache, or null if not found.
void	remove(Element e)
protected ReplacedElement	replaceImage(UserAgentCallback uac, LayoutContext context, Element elem, int cssWidth, int cssHeight)	Handles replacement of image elements in the document.
void	reset()
void	setFormSubmissionListener(FormSubmissionListener listener)
protected void	storeImageReplacedElement(Element e, ReplacedElement cc)	Adds a ReplacedElement containing an image to a cache of images for quick lookup.

Methods inherited from class java.lang.Object

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

Constructor Detail

SWTReplacedElementFactory

public SWTReplacedElementFactory()

Method Detail

clean

public void clean()

Dispose missing image if created.

createReplacedElement

public ReplacedElement createReplacedElement(LayoutContext c,
                                             BlockBox box,
                                             UserAgentCallback uac,
                                             int cssWidth,
                                             int cssHeight)

Specified by:

createReplacedElement in interface ReplacedElementFactory

replaceImage

protected ReplacedElement replaceImage(UserAgentCallback uac,
                                       LayoutContext context,
                                       Element elem,
                                       int cssWidth,
                                       int cssHeight)

Handles replacement of image elements in the document. May return the same ReplacedElement for a given image on multiple calls. Image will be automatically scaled to cssWidth and cssHeight assuming these are non-zero positive values. The element is assumed to have a src attribute (e.g. it's a <img> element)

Parameters:

uac - Used to retrieve images on demand from some source.

elem - The element with the image reference

cssWidth - Target width of the image

cssHeight - Target height of the image

Returns:

A ReplacedElement for the image; will not be null.

storeImageReplacedElement

protected void storeImageReplacedElement(Element e,
                                         ReplacedElement cc)

Adds a ReplacedElement containing an image to a cache of images for quick lookup.

Parameters:

e - The element under which the image is keyed.

cc - The replaced element containing the image, or another ReplacedElement to be used in its place (like a placeholder if the image can't be loaded).

lookupImageReplacedElement

protected ReplacedElement lookupImageReplacedElement(Element e)

Retrieves a ReplacedElement for an image from cache, or null if not found.

Parameters:

e - The element by which the image is keyed

Returns:

The ReplacedElement for the image, or null if there is none.

remove

public void remove(Element e)

Specified by:

remove in interface ReplacedElementFactory

setFormSubmissionListener

public void setFormSubmissionListener(FormSubmissionListener listener)

Specified by:

setFormSubmissionListener in interface ReplacedElementFactory

reset

public void reset()

Specified by:

reset in interface ReplacedElementFactory