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Posted to user@pivot.apache.org by Jérôme Serré <je...@gmail.com> on 2010/12/14 10:59:52 UTC
Error widow and multi task
Hello,
When I move the mouse with a modal window is executed in a different thread,
there is an event error on the owner window.
I have attached one image to illustrate my point
Did I make something wrong ?
Thanks
Jérôme
Code:
public void startup(final Display display, Map<String, String> properties)
throws Exception {
try {
window.open(display);
/
windowActivite.open();
Tache tache = new Tache();
TaskListener<String> taskListener = new
TaskListener<String>() {
@Override
public void
taskExecuted(Task<String> task) {
windowActivite.close();
}
@Override
public void
executeFailed(Task<String> task) {
try {
windowActivite.close();
} catch (BizException be) {
}
}
};
tache.execute(new
TaskAdapter<String>(taskListener));
}catch (Exception e) { }
}
private class Tache extends Task<String> {
@Override
public String execute() throws
TaskExecutionException {
try {
Somme operations on objects from window
Catch(){}
}
}
Error :
java.lang.NullPointerException
at
org.apache.pivot.wtk.ApplicationContext$DisplayHost.processMouseMotionEvent(
ApplicationContext.java:1010)
at java.awt.Component.processEvent(Unknown Source)
at
org.apache.pivot.wtk.ApplicationContext$DisplayHost.processEvent(Application
Context.java:655)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(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)
____________________________
La gestion de votre cave
<http://85.216.59.161:8000/cave> http://85.216.59.161:8000/cave
RE: Error widow and multi task
Posted by Jérôme Serré <je...@gmail.com>.
Thank you for your help.
-----Message d'origine-----
De : Greg Brown [mailto:gk_brown@verizon.net]
Envoyé : mardi 14 décembre 2010 15:13
À : user@pivot.apache.org
Objet : Re: Error widow and multi task
Like AWT, Swing and most other UI toolkits, Pivot is single-threaded. This
means that all UI calls need to happen on the event dispatch thread, or EDT.
You can call into the UI thread from a background thread using
ApplicationContext.queueCallback(). This method is similar to
SwingUtilities.invokeLater(). It ensures that the Runnable you pass as an
argument is executed on the EDT. If you wrap your task listener in an
instance of org.apache.pivot.wtk.TaskAdapter, this will happen
automatically.
On Dec 14, 2010, at 4:59 AM, Jérôme Serré wrote:
> Hello,
>
> When I move the mouse with a modal window is executed in a different
thread,
> there is an event error on the owner window.
> I have attached one image to illustrate my point
> Did I make something wrong ?
>
> Thanks
> Jérôme
>
> Code:
> public void startup(final Display display, Map<String, String> properties)
> throws Exception {
> try {
> window.open(display);
>
>
/
> windowActivite.open();
> Tache tache = new Tache();
> TaskListener<String> taskListener = new
> TaskListener<String>() {
> @Override
> public void
> taskExecuted(Task<String> task) {
>
> windowActivite.close();
> }
> @Override
> public void
> executeFailed(Task<String> task) {
> try
{
>
> windowActivite.close();
>
> } catch (BizException be) {
>
>
> }
> }
> };
> tache.execute(new
> TaskAdapter<String>(taskListener));
>
> }catch (Exception e) { }
> }
> private class Tache extends Task<String> {
> @Override
> public String execute() throws
> TaskExecutionException {
> try {
> Somme operations on objects from window
> Catch(){}
> }
> }
>
>
> Error :
> java.lang.NullPointerException
> at
>
org.apache.pivot.wtk.ApplicationContext$DisplayHost.processMouseMotionEvent(
> ApplicationContext.java:1010)
> at java.awt.Component.processEvent(Unknown Source)
> at
>
org.apache.pivot.wtk.ApplicationContext$DisplayHost.processEvent(Application
> Context.java:655)
> at java.awt.Component.dispatchEventImpl(Unknown Source)
> at java.awt.Component.dispatchEvent(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)
>
> ____________________________
> La gestion de votre cave
> <http://85.216.59.161:8000/cave> http://85.216.59.161:8000/cave
>
> <Image8.jpg>
Re: Error widow and multi task
Posted by Greg Brown <gk...@verizon.net>.
Like AWT, Swing and most other UI toolkits, Pivot is single-threaded. This means that all UI calls need to happen on the event dispatch thread, or EDT.
You can call into the UI thread from a background thread using ApplicationContext.queueCallback(). This method is similar to SwingUtilities.invokeLater(). It ensures that the Runnable you pass as an argument is executed on the EDT. If you wrap your task listener in an instance of org.apache.pivot.wtk.TaskAdapter, this will happen automatically.
On Dec 14, 2010, at 4:59 AM, Jérôme Serré wrote:
> Hello,
>
> When I move the mouse with a modal window is executed in a different thread,
> there is an event error on the owner window.
> I have attached one image to illustrate my point
> Did I make something wrong ?
>
> Thanks
> Jérôme
>
> Code:
> public void startup(final Display display, Map<String, String> properties)
> throws Exception {
> try {
> window.open(display);
>
> …/…
> windowActivite.open();
> Tache tache = new Tache();
> TaskListener<String> taskListener = new
> TaskListener<String>() {
> @Override
> public void
> taskExecuted(Task<String> task) {
>
> windowActivite.close();
> }
> @Override
> public void
> executeFailed(Task<String> task) {
> try {
>
> windowActivite.close();
>
> } catch (BizException be) {
>
>
> }
> }
> };
> tache.execute(new
> TaskAdapter<String>(taskListener));
>
> }catch (Exception e) { }
> }
> private class Tache extends Task<String> {
> @Override
> public String execute() throws
> TaskExecutionException {
> try {
> Somme operations on objects from window
> Catch(){}
> }
> }
>
>
> Error :
> java.lang.NullPointerException
> at
> org.apache.pivot.wtk.ApplicationContext$DisplayHost.processMouseMotionEvent(
> ApplicationContext.java:1010)
> at java.awt.Component.processEvent(Unknown Source)
> at
> org.apache.pivot.wtk.ApplicationContext$DisplayHost.processEvent(Application
> Context.java:655)
> at java.awt.Component.dispatchEventImpl(Unknown Source)
> at java.awt.Component.dispatchEvent(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)
>
> ____________________________
> La gestion de votre cave
> <http://85.216.59.161:8000/cave> http://85.216.59.161:8000/cave
>
> <Image8.jpg>