de.lmu.ifi.dbs.elki.visualization.batikutil
Class JSVGUpdateSynchronizer

java.lang.Object
  de.lmu.ifi.dbs.elki.visualization.batikutil.JSVGUpdateSynchronizer

All Implemented Interfaces:

UpdateSynchronizer

 class JSVGUpdateSynchronizer
extends Object
implements UpdateSynchronizer

This class is used to synchronize SVG updates with an JSVG canvas.

Author:

Erich Schubert

Nested Class Summary

private class	JSVGUpdateSynchronizer.JSVGSynchronizedRunner Update Runner that will be placed in the Components UpdateManagers queue.
private class	JSVGUpdateSynchronizer.UMAdapter Adapter that will track the component for UpdateManager changes.

Field Summary

private WeakReference<org.apache.batik.swing.svg.JSVGComponent>	cref A weak reference to the component the plot is in.
private WeakReference<JSVGUpdateSynchronizer.JSVGSynchronizedRunner>	syncrunner The current Runnable scheduled
private JSVGUpdateSynchronizer.UMAdapter	umadapter Adapter to track component changes
private List<WeakReference<UpdateRunner>>	updaterunner The UpdateRunner we are put into

Constructor Summary

protected

JSVGUpdateSynchronizer(org.apache.batik.swing.svg.JSVGComponent component) Create an updateSynchronizer for the given component.

Method Summary

void	activate() This method is called whenever a new pending event was added.
void	addUpdateRunner(UpdateRunner updateRunner) Set an update runner to use.
protected void	forgetSynchronizedRunner() Forget the current update runner.
private JSVGUpdateSynchronizer.JSVGSynchronizedRunner	getSynchronizedRunner() Get the current update runner.
protected void	invokeFromRunner(JSVGUpdateSynchronizer.JSVGSynchronizedRunner caller) Invoke from the SVGs run queue.
protected void	makeRunnerIfNeeded() Join the runnable queue of a component.
private void	setSynchronizedRunner(JSVGUpdateSynchronizer.JSVGSynchronizedRunner newrunner) Set the current update runner

Methods inherited from class java.lang.Object

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

Field Detail

cref

private final WeakReference<org.apache.batik.swing.svg.JSVGComponent> cref

A weak reference to the component the plot is in.

updaterunner

private List<WeakReference<UpdateRunner>> updaterunner

The UpdateRunner we are put into

umadapter

private final JSVGUpdateSynchronizer.UMAdapter umadapter

Adapter to track component changes

syncrunner

private WeakReference<JSVGUpdateSynchronizer.JSVGSynchronizedRunner> syncrunner

The current Runnable scheduled

Constructor Detail

JSVGUpdateSynchronizer

protected JSVGUpdateSynchronizer(org.apache.batik.swing.svg.JSVGComponent component)

Create an updateSynchronizer for the given component.

Parameters:

component - Component to manage updates on.

Method Detail

activate

public void activate()

Description copied from interface: UpdateSynchronizer

This method is called whenever a new pending event was added.

Specified by:

activate in interface UpdateSynchronizer

makeRunnerIfNeeded

protected void makeRunnerIfNeeded()

Join the runnable queue of a component.

addUpdateRunner

public void addUpdateRunner(UpdateRunner updateRunner)

Description copied from interface: UpdateSynchronizer

Set an update runner to use.

Specified by:

addUpdateRunner in interface UpdateSynchronizer

setSynchronizedRunner

private void setSynchronizedRunner(JSVGUpdateSynchronizer.JSVGSynchronizedRunner newrunner)

Set the current update runner

Parameters:

newrunner -

getSynchronizedRunner

private JSVGUpdateSynchronizer.JSVGSynchronizedRunner getSynchronizedRunner()

Get the current update runner.

Returns:

current update runner

invokeFromRunner

protected void invokeFromRunner(JSVGUpdateSynchronizer.JSVGSynchronizedRunner caller)

Invoke from the SVGs run queue.

Parameters:

caller - For consistency checks

forgetSynchronizedRunner

protected void forgetSynchronizedRunner()

Forget the current update runner. Called when the update manager is stopped.