JFreechart in RCP: dynamic chart problems

[jinrf]

HI, all!
I read the topic about HOW TO USE JFREECHART IN RCP posted here, but seems all solution is create one CLASS, including some static member and method(like createPieChart(){...}...), but when it comes to dynamic chart, these kind of solution will face a problem: SWTException: Invalid Thread Access, because a non UI thread cannot modify the UI component,

SO, here's the question, is there any approach or example to solve this problem, which enable us to display dynamic chart in RCP project...

[silent]

use original jfreechart with SWT_AWT or experiment SWT jfreechart?
and if you use experiment SWT jfreechart then what is your eclipse version?

in general thread, for update swing graphics using

Code: Select all

SwingUtilities.invokeLater(new Runnable() { 
 public void run() { 
    add(item); 
 } 
});

and for update SWT graphics using

Code: Select all

Display.getCurrent().asyncExec(new Runnable(){ 
 public void run(){ 
    add(item); 
 } 
});

and see this http://www.jfree.org/phpBB2/viewtopic.php?t=20736
I think it is same problem issue.

[jinrf]

Thank you so much I'm using
experiment SWT. And my eclipse version is 3.2.2, I tried your code below

use original jfreechart with SWT_AWT or experiment SWT jfreechart?
and if you use experiment SWT jfreechart then what is your eclipse version?

and for update SWT graphics using

Code: Select all

Display.getCurrent().asyncExec(new Runnable(){ 
 public void run(){ 
    add(item); 
 } 
});

and i still got NullPointerException...

Code: Select all

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
	at cn.org.crown.mymeter.charts.MemChart.addTotalObservation(MemChart.java:92)
	at cn.org.crown.mymeter.model.DataGenerator.actionPerformed(DataGenerator.java:24)
	at javax.swing.Timer.fireActionPerformed(Unknown Source)
	at javax.swing.Timer$DoPostEvent.run(Unknown Source)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

[silent]

see this,
I wrote sample code.

http://www.jfree.org/phpBB2/viewtopic.php?t=20763

[raghavan_26]

Go thorugh the link u will know how to get the chart in eclipse rcp View

http://www.jfree.org/phpBB2/viewtopic.p ... hlight=swt

by
raghavan