Package qupath.lib.gui.images.stores

Class AbstractImageRenderer

java.lang.Object

qupath.lib.gui.images.stores.AbstractImageRenderer

All Implemented Interfaces:

ImageRenderer

Direct Known Subclasses:

ImageDisplay

public abstract class AbstractImageRenderer
extends Object
implements ImageRenderer

Abstract ImageRenderer, which adds a timestamp variable.

Field Summary

Fields

Modifier and Type	Field	Description
protected long	timestamp	Timestamp variable; this should be updated by implementing classes.

Constructor Summary

Constructors

Constructor	Description
AbstractImageRenderer()

Method Summary

Modifier and Type	Method	Description
long	getLastChangeTimestamp()	Timestamp of the last change (probably in milliseconds).
String	getUniqueID()	Get a unique key, which will be used for caching.

Methods inherited from class java.lang.Object

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

Methods inherited from interface qupath.lib.gui.images.stores.ImageRenderer

applyTransforms

Field Details

timestamp

protected long timestamp

Timestamp variable; this should be updated by implementing classes.

Constructor Details

AbstractImageRenderer

public AbstractImageRenderer()

Method Details

getLastChangeTimestamp

public long getLastChangeTimestamp()

Description copied from interface: ImageRenderer

Timestamp of the last change (probably in milliseconds).

This can be used to identify when the status has changed.

Specified by:

getLastChangeTimestamp in interface ImageRenderer

Returns:

getUniqueID

public String getUniqueID()

Description copied from interface: ImageRenderer

Get a unique key, which will be used for caching.

The only requirement is that the key is unique for the ImageRenderer in its current state. It is suggested to base it on the full class name, a counter for instances of this class, and a timestamp derived from the last change.

Specified by:

getUniqueID in interface ImageRenderer

Returns: