org.w3c.rdfpic.core
Class ImageLoader

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--org.w3c.rdfpic.core.ImageLoader

public class ImageLoader

extends java.lang.Thread

Image loader is a class that places load requests for new images in a new thread so that the UI does not lock up when a file takes long to load. This also means that the user interface must take mesures to insure that no changes are applied while loading. (Though they should not cause any crashes in RdfPicCore).

Field Summary

(package private) RdfPicCore	core
(package private) boolean	quitNow
(package private) boolean	syncNeeded

Fields inherited from class java.lang.Thread

contextClassLoader, daemon, eetop, group, inheritedAccessControlContext, MAX_PRIORITY, MIN_PRIORITY, name, NORM_PRIORITY, priority, single_step, stillborn, stopThreadPermission, target, threadInitNumber, threadQ, values

Constructor Summary

ImageLoader(RdfPicCore core)
Creates a new ImageLoader.

Method Summary

(package private) void	quit() Shuts down load thread.
(package private) void	reload() Puts a load request.
void	run() Starts the loading thread, in which load requests will later execute.
private void	sync() Synchronizes image - finish loading.
private void	syncLoop() Waits until something happens, process it, and start over...

Methods inherited from class java.lang.Thread

, activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, exit, getContextClassLoader, getName, getPriority, getThreadGroup, init, interrupt, interrupt0, interrupted, isAlive, isDaemon, isInterrupted, isInterrupted, join, join, join, nextThreadNum, registerNatives, resume, resume0, setContextClassLoader, setDaemon, setName, setPriority, setPriority0, sleep, sleep, start, stop, stop, stop0, suspend, suspend0, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

core

RdfPicCore core

syncNeeded

boolean syncNeeded

quitNow

boolean quitNow

Constructor Detail

ImageLoader

public ImageLoader(RdfPicCore core)

Creates a new ImageLoader.

Parameters:

core - The core to interact with.

Method Detail

run

public void run()

Starts the loading thread, in which load requests will later execute.

Overrides:

run in class java.lang.Thread

syncLoop

private void syncLoop()

Waits until something happens, process it, and start over...

sync

private void sync()

Synchronizes image - finish loading.

quit

void quit()

Shuts down load thread. (IDEA deamon thread easier - maybe io problems though?)

reload

void reload()

Puts a load request. The active image will be (re)loaded.