net.sourceforge.jsh3modtool.gui.imagetable.cache
Class ImageCache

java.lang.Object
  net.sourceforge.jsh3modtool.gui.imagetable.cache.ImageCache

All Implemented Interfaces:

ThumbnailViewer

public class ImageCache
extends java.lang.Object
implements ThumbnailViewer

A very simple image cache stuff.

Author:

erma

Constructor Summary

ImageCache(ImageLoadingListener listener)
Creates a new instance of ImageBrowserCache

ImageCache(ImageLoadingListener listener, int cacheMax)
Creates a new instance of ImageBrowserCache

Method Summary

void	clear() Clears the cache.
int	getCachedImagesCount() Returns the number of cached images.
java.awt.image.BufferedImage	getImage(ImageCell imageCell) Returns the cached image for the specified image, can be null.
boolean	isCached(ImageCell imageCell) Returns if the tableimage is cached or not.
void	reloadCachedImage(ImageCell imageCell) Tells the cache to reload the cached image.
void	removeCachedImage(ImageCell imageCell) Clears the cached image from the cache.
void	setImage(ImageModel imageModel, java.awt.Image image) Notifies the thumbnail viewer that the supplied image has been updated.
void	setMessage(ImageModel imageModel, java.lang.String msg) Notifies the thumbnail viewer that the image couldnt be loaded.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageCache

public ImageCache(ImageLoadingListener listener)

Creates a new instance of ImageBrowserCache

Parameters:

listener - a image loading listener.

ImageCache

public ImageCache(ImageLoadingListener listener,
                  int cacheMax)

Creates a new instance of ImageBrowserCache

Parameters:

listener - a image loading listener.

cacheMax - the maximum number of images to cache.

Method Detail

getCachedImagesCount

public int getCachedImagesCount()

Returns the number of cached images.

Returns:

the number of cached images.

getImage

public java.awt.image.BufferedImage getImage(ImageCell imageCell)

Returns the cached image for the specified image, can be null.

Parameters:

imageCell - the image cell to get the cached image for.

Returns:

the cached image for the specified image, can be null.

reloadCachedImage

public void reloadCachedImage(ImageCell imageCell)

Tells the cache to reload the cached image. The cache will keep the old image until the new one has been loaded. When the new image has been loaded it will replace the cached and the cell with be updated.

Parameters:

imageCell - the cell that needs a new image.

isCached

public boolean isCached(ImageCell imageCell)

Returns if the tableimage is cached or not.

Parameters:

imageCell - the lookup object.

Returns:

if the tableimage is cached or not.

clear

public void clear()

Clears the cache.

removeCachedImage

public void removeCachedImage(ImageCell imageCell)

Clears the cached image from the cache.

Parameters:

imageCell - the image cells cached image to remove.

setImage

public void setImage(ImageModel imageModel,
                     java.awt.Image image)

Notifies the thumbnail viewer that the supplied image has been updated.

Specified by:

setImage in interface ThumbnailViewer

Parameters:

imageModel - the image properties detailing which image that was updated.

image - the new raw image as an imagedata object.

setMessage

public void setMessage(ImageModel imageModel,
                       java.lang.String msg)

Notifies the thumbnail viewer that the image couldnt be loaded.

Specified by:

setMessage in interface ThumbnailViewer

Parameters:

imageModel - the image properties detailing which image that was updated.

msg - the message stating what happened