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java.lang.Objectorg.apache.myfaces.trinidadinternal.image.AbstractImageRenderer
public abstract class AbstractImageRenderer
Abstract base class that implements ImageRenderer.
Subclasses should always create their images by calling createImage() so that the type of image
Field Summary |
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Fields inherited from interface java.awt.image.ImageObserver |
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ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor Summary | |
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protected |
AbstractImageRenderer()
Create an AbstractImageRenderer. |
Method Summary | |
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protected java.awt.image.BufferedImage |
createImage(int width,
int height)
Creates an Image with the given width and height. |
boolean |
imageUpdate(java.awt.Image img,
int infoflags,
int x,
int y,
int width,
int height)
Implementation of ImageObserver.ImageUpdate(). |
abstract java.awt.Image |
renderImage(ImageContext context,
java.util.Map<java.lang.Object,java.lang.Object> requestedProperties,
java.util.Map<java.lang.Object,java.lang.Object> responseProperties)
Render the BufferedImage given the Map of properties that describe what to render. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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protected AbstractImageRenderer()
Method Detail |
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public abstract java.awt.Image renderImage(ImageContext context, java.util.Map<java.lang.Object,java.lang.Object> requestedProperties, java.util.Map<java.lang.Object,java.lang.Object> responseProperties)
renderImage
in interface ImageRenderer
context
- The rendering contextrequestedProperties
- Map of requested properties.
The keys for this dictionary are the KEY constants defined
in ImageConstants.responseProperties
- Map for response properties.
The keys for this dictionary are the RESPONSE_KEY constants
defined in ImageConstants.
ImageContext
,
ImageConstants
public boolean imageUpdate(java.awt.Image img, int infoflags, int x, int y, int width, int height)
imageUpdate
in interface java.awt.image.ImageObserver
ImageObserver
protected java.awt.image.BufferedImage createImage(int width, int height)
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