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Home » Eclipse Projects » Eclipse 4 » Problem on min/max of Parts
Problem on min/max of Parts [message #961706] Sun, 28 October 2012 14:21 Go to next message
Jim Jone is currently offline Jim JoneFriend
Messages: 11
Registered: October 2012
Junior Member
In my eclipse 4 application which is defined:
Trimmed Window\
               Perspective Stack\
                      PartShashContainer\
                              PartStack\
                                       Part
                              PartShashContainer\
                                             PartStack\
                                                      Part\
                                             PartStack\
                                                      Part\

When I minimize the parts I get only 2 of the parts are shown on restore.One crashes with the following: 

!ENTRY org.eclipse.equinox.event 4 0 2012-10-28 16:19:45.685
!MESSAGE Exception while dispatching event org.osgi.service.event.Event [topic=org/eclipse/e4/ui/model/application/ApplicationElement/tags/REMOVE] to handler org.eclipse.e4.ui.services.internal.events.UIEventHandler@516f3619
!STACK 0
java.lang.NullPointerException
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon.restore(MinMaxAddon.java:559)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon$8.handleEvent(MinMaxAddon.java:377)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:41)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4687)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:187)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:81)
	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:57)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
	at org.eclipse.emf.ecore.util.EcoreEList.dispatchNotification(EcoreEList.java:249)
	at org.eclipse.emf.common.notify.impl.NotifyingListImpl.remove(NotifyingListImpl.java:725)
	at org.eclipse.emf.common.util.AbstractEList.remove(AbstractEList.java:460)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon.unzoom(MinMaxAddon.java:714)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon$8.handleEvent(MinMaxAddon.java:379)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:41)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4687)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:187)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:81)
	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:57)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
	at org.eclipse.emf.ecore.util.EcoreEList.dispatchNotification(EcoreEList.java:249)
	at org.eclipse.emf.common.notify.impl.NotifyingListImpl.remove(NotifyingListImpl.java:725)
	at org.eclipse.emf.common.util.AbstractEList.remove(AbstractEList.java:460)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon.setState(MinMaxAddon.java:259)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon.access$2(MinMaxAddon.java:249)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon$3.restore(MinMaxAddon.java:177)
	at org.eclipse.swt.custom.CTabFolder.onSelection(CTabFolder.java:2007)
	at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:279)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1022)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:916)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:150)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1414)


What is the problem? I have a setFocus in the corresponding Part as follows:

@Focus
	private boolean setFocus(){
		if(treeViewer == null){
			return false;
		}
		if(treeViewer.getControl() == null){
			return false;
		}
		treeViewer.getControl().setFocus();
		return true;
	}

[Updated on: Sun, 28 October 2012 14:21]

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Re: Problem on min/max of Parts [message #962089 is a reply to message #961706] Sun, 28 October 2012 21:37 Go to previous messageGo to next message
Eclipse UserFriend
You've hit https://bugs.eclipse.org/bugs/show_bug.cgi?id=391914 targeted for 4.3

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Re: Problem on min/max of Parts [message #962095 is a reply to message #962089] Sun, 28 October 2012 21:43 Go to previous messageGo to next message
Jim Jone is currently offline Jim JoneFriend
Messages: 11
Registered: October 2012
Junior Member
Is there a work arround?
In your link it says:
Quote:
There is a part stack with "NoAutoCollapse" tag.

What is this tag?If this is set does that mean that the parts are not min/maximizable?
I could use that until this is fixed in 4.3

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Re: Problem on min/max of Parts [message #962100 is a reply to message #962095] Sun, 28 October 2012 21:48 Go to previous message
Eclipse UserFriend
http://www.eclipse.org/forums/index.php/t/403398/ explains NoAutoCollapse

I don't think it will fix your issue. I haven't looked at the bug in detail and see if there's a workaround.

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