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Tue, 29 June 2004 03:50

Eclipse User

Originally posted by: hello.yahoo.com

Hi

Now my parent figure is a figure extending from ConnectionLayer and
layout is DelegatingLayout,ConnectionRouter is ManhantonRouter.When I want
to add some resize or move functions for my figures some exception will
appear:
Reason:
org.eclipse.draw2d.DelegatingLayout
Unhandled event loop exception

I have added SetConstraintCommand and XYLayoutEditPolicy to support my
fucntions. why?

thanks in advance.

Daniel

Re: ConnectionLayer [message #140778 is a reply to message #140565]

Tue, 29 June 2004 17:35

Eclipse User

Originally posted by: rlemaigr.ulb.ac.be

Hello,

If I properly understand, you use XYLayoutEditPolicy on an EditPart with=
a =

content pane layed out by DelegatingLayout ?

This should be the problem because in the code of XYLayoutEditPolicy, it=
=

is assumed that the layout manager is XYLayout and no other.
It's strange you don't get a classcastexception somewhere...

If you really want to use DelegatingLayout, perhaps you should write you=
r =

own ConstrainedLayoutEditPolicy...I don't know...

hope this will help,

r=E9gis

On Tue, 29 Jun 2004 07:50:57 +0000 (UTC), Daniel <hello@yahoo.com> wrote=
:

> Hi
>
> Now my parent figure is a figure extending from ConnectionLayer and
> layout is DelegatingLayout,ConnectionRouter is ManhantonRouter.When I =
=

> want
> to add some resize or move functions for my figures some exception wil=
l
> appear:
> Reason:
> org.eclipse.draw2d.DelegatingLayout
> Unhandled event loop exception
>
> I have added SetConstraintCommand and XYLayoutEditPolicy to support my=

> fucntions. why?
>
> thanks in advance.
>
> Daniel
>

-- =

Using Opera's revolutionary e-mail client: http://www.opera.com/m2/

Re: ConnectionLayer [message #140786 is a reply to message #140565]

Tue, 29 June 2004 17:37

Eclipse User

You need to find the real cause of the exception. Look in the .log file or
the Error Log view. Also, what version of GEF are you using?

"Daniel" <hello@yahoo.com> wrote in message news:cbr710$3fo$1@eclipse.org...
> Hi
>
> Now my parent figure is a figure extending from ConnectionLayer and
> layout is DelegatingLayout,ConnectionRouter is ManhantonRouter.When I want
> to add some resize or move functions for my figures some exception will
> appear:
> Reason:
> org.eclipse.draw2d.DelegatingLayout
> Unhandled event loop exception
>
> I have added SetConstraintCommand and XYLayoutEditPolicy to support my
> fucntions. why?
>
> thanks in advance.
>
> Daniel
>

Re: ConnectionLayer [message #140797 is a reply to message #140778]

Tue, 29 June 2004 17:48

Eclipse User

Originally posted by: rlemaigr.ulb.ac.be

sorry I didn't read your following posts before answering this first one=
....
this answer was useless...

Re: ConnectionLayer [message #140842 is a reply to message #140786]

Tue, 29 June 2004 21:26

Eclipse User

Originally posted by: hello.yahoo.com

Thanks for your answers.This is my another post:
My root figure is using DelegatingLayout to layout its children and
it extends from ConnectionLayer. We use Locator to locate the figure. Now
I want to move and resize my figure. The existing EditPolicy is
XYLayoutEditPolicy. I have use it.But it reports some exceptions and no
child can move and resize.So I think if I need to reinvent another
EditPolicy(DelegatingLayoutEditPolciy extends
ConstrainedLayoutEditPolicy)to move and resize my children.
Am I right?
If I must write,will I need to implement some key methods such as
getLayoutOrigin(),getConstraintFor(Rectangle) and getConstraintFor(Point).
Thanks in advance.
Daniel.

The following is the error message

!MESSAGE org.eclipse.draw2d.DelegatingLayout
!STACK 0
java.lang.ClassCastException: org.eclipse.draw2d.DelegatingLayout
at
org.eclipse.gef.editpolicies.XYLayoutEditPolicy.getLayoutOri gin(XYLayoutEditPolicy.java:106)
at
org.eclipse.gef.editpolicies.XYLayoutEditPolicy.getConstrain tFor(XYLayoutEditPolicy.java:69)
at
org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy.get ResizeChildrenCommand

(ConstrainedLayoutEditPolicy.java:249)
at
org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy.get MoveChildrenCommand

(ConstrainedLayoutEditPolicy.java:262)
at
org.eclipse.gef.editpolicies.LayoutEditPolicy.getCommand(Lay outEditPolicy.java:183)
at
org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy.get Command(ConstrainedLayoutEditPolicy.java:138)
at
org.eclipse.gef.editparts.AbstractEditPart.getCommand(Abstra ctEditPart.java:494)
at
org.eclipse.gef.editpolicies.NonResizableEditPolicy.getMoveC ommand(NonResizableEditPolicy.java:175)
at
org.eclipse.gef.editpolicies.NonResizableEditPolicy.getComma nd(NonResizableEditPolicy.java:115)
at
org.eclipse.gef.editpolicies.ResizableEditPolicy.getCommand( ResizableEditPolicy.java:124)
at
org.eclipse.gef.editparts.AbstractEditPart.getCommand(Abstra ctEditPart.java:494)
at
org.eclipse.gef.tools.DragEditPartsTracker.getCommand(DragEd itPartsTracker.java:227)
at
org.eclipse.gef.tools.DragEditPartsTracker.handleDragInProgr ess(DragEditPartsTracker.java:321)
at org.eclipse.gef.tools.AbstractTool.mouseDrag(AbstractTool.ja va:955)
at org.eclipse.gef.tools.SelectionTool.mouseDrag(SelectionTool. java:493)
at org.eclipse.gef.EditDomain.mouseDrag(EditDomain.java:205)
at
org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchMouse Moved(DomainEventDispatcher.java:329)
at
org.eclipse.draw2d.LightweightSystem$EventHandler.mouseMove( LightweightSystem.java:511)

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