RE: [gef-dev] Re: Resizing figures.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]

RE: [gef-dev] Re: Resizing figures.

From: "Zahid Hussain" <zahidh@xxxxxxxxxxxxxxxx>
Date: Fri, 27 Feb 2004 19:12:28 -0500
Delivered-to: gef-dev@xxxxxxxxxxx
Importance: Normal
List-archive: <http://dev.eclipse.org/pipermail/gef-dev/>
List-help: <mailto:gef-dev-request@eclipse.org?subject=help>
List-subscribe: <http://dev.eclipse.org/mailman/listinfo/gef-dev>, <mailto:gef-dev-request@eclipse.org?subject=subscribe>
List-unsubscribe: <http://dev.eclipse.org/mailman/listinfo/gef-dev>, <mailto:gef-dev-request@eclipse.org?subject=unsubscribe>

I am getting following exception and struggling to find the source. I have modified LogicDesgner sample application and would appreciate if some one can help where to catch this exception and get stack trace.

======

java.lang.NullPointerException

at org.eclipse.gef.ui.parts.AbstractEditPartViewer.fireSelectionChanged(AbstractEditPartViewer.java:186)

at org.eclipse.gef.ui.parts.AbstractEditPartViewer.appendSelection(AbstractEditPartViewer.java:115)

at org.eclipse.gef.ui.parts.AbstractEditPartViewer.select(AbstractEditPartViewer.java:466)

at org.eclipse.gef.internal.ui.palette.editparts.DrawerEditPart$2.focusGained(DrawerEditPart.java:72)

at org.eclipse.draw2d.Figure.handleFocusGained(Figure.java:675)

at org.eclipse.draw2d.SWTEventDispatcher.setFocus(SWTEventDispatcher.java:470)

at org.eclipse.draw2d.SWTEventDispatcher.dispatchFocusGained(SWTEventDispatcher.java:104)

at org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchFocusGained(DomainEventDispatcher.java:208)

at org.eclipse.draw2d.LightweightSystem$EventHandler.focusGained(LightweightSystem.java:331)

at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:104)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:81)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:865)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:845)

at org.eclipse.swt.widgets.Control.WM_SETFOCUS(Control.java:3956)

at org.eclipse.swt.widgets.Canvas.WM_SETFOCUS(Canvas.java:215)

at org.eclipse.swt.widgets.Control.windowProc(Control.java:2828)

at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361)

at org.eclipse.swt.internal.win32.OS.SetFocus(Native Method)

at org.eclipse.swt.widgets.Control.forceFocus(Control.java:599)

at org.eclipse.swt.widgets.Control.setFocus(Control.java:1924)

at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:386)

at org.eclipse.swt.widgets.Composite.WM_LBUTTONDOWN(Composite.java:565)

at org.eclipse.swt.widgets.Control.windowProc(Control.java:2799)

at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361)

at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)

at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1303)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1543)

at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1402)

at org.eclipse.ui.internal.Workbench.run(Workbench.java:1385)

at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:858)

at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:324)

at org.eclipse.core.launcher.Main.basicRun(Main.java:291)

at org.eclipse.core.launcher.Main.run(Main.java:747)

at org.eclipse.core.launcher.Main.main(Main.java:583)

!ENTRY org.eclipse.ui 4 4 Feb 27, 2004 19:06:53.821

-----Original Message-----
From: gef-dev-admin@xxxxxxxxxxx [mailto:gef-dev-admin@xxxxxxxxxxx] On Behalf Of Randy Hudson
Sent: Friday, February 13, 2004 2:35 PM
To: gef-dev@xxxxxxxxxxx
Subject: Re: [gef-dev] Re: Resizing figures.

Please ask questions on the newsgroup where everyone can benefit/help. The mailing list is for development issues.

-Randy

michaelsun@xxxxxxxxxx
Sent by: gef-dev-admin@xxxxxxxxxxx

02/13/2004 02:13 PM
Please respond to gef-dev

To: gef-dev@xxxxxxxxxxx
cc: bharath@xxxxxxxxxxxx
Subject: [gef-dev] Re: Resizing figures.

hello Bharath

After I make the following changes, it works, though I
am not familiar with emf, ecore classes
such as EAttribute, EClass, and the ENotificationImpl.
I try using PropertyChangeListener as my ModelListener
to replace Adapter.

1. modify
NetworkXYLayoutEditPolicy.createChildEditPolicy method

protected EditPolicy createChildEditPolicy(EditPart
child) {

NetworkNodeEditPart childEditPart =
(NetworkNodeEditPart) child;

NodeFigure rectangle = (NodeFigure)
childEditPart.getFigure();

return new ResizableEditPolicy();

}

2. In the interface Node.java, add two new methods

Dimension getSize();

void setSize(Dimension s);

3. In NodeImpl.java add
protected Dimension size_EDEFAULT = new
Dimension(-1,-1);
protected Dimension size=size_EDEFAULT;

public Dimension getSize() {
return size;
}

public void setSize(Dimension dimension) {

Dimension oldDimension = dimension;
size = dimension;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this,
Notification.SET, NetworkPackage.NODE_SIZE,
oldDimension, size));

}

and it is easy for you to modify other methods, for
example, only add more "case return" following the
method pattern.

4. In NetworkPackage.java, add something like
int NODE_SIZE=11; //randomly choose the int
EClass getSize();

5. In NetworkPackageImpl.java, add
public EClass getSize(){
return (EClass)nodeEClass.getEReferences().get(11);
}

6. In SetConstrainCommand.java, add
two new fields:
private Dimension newSize;
private Dimension oldSize;

in execute() add part.setSize(newSize),
also add it to other methods.

7. In NetworkNodeEditPart.java, modify
refreshVisuals(), replace
Dimension size = new Dimension(-1,-1);
with Dimension size = getNetworkNode().getSize();

>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>On Fri, 13 Feb 2004 10:32:07-0600, "Bharath S" wrote:

>
> Hi Michael,
>
> I am trying to resize figures too and I am having
> problems. Can you guide me
> with this?
>
> Thanks!
>
> Bharath.
>
>
> -----Original Message-----
> From: gef-dev-admin@xxxxxxxxxxx
> [mailto:gef-dev-admin@xxxxxxxxxxx] On Behalf
> Of michaelsun@xxxxxxxxxx
> Sent: Friday, February 13, 2004 9:03 AM
> To: gef-dev@xxxxxxxxxxx
> Subject: Re: [gef-dev] NodeFigure can not be resized?
>
> Now the problem is fixed by modifying the
> NetworkXYLayoutEditorPolicy, NetworkNodeEditParty,
> Node, NodeImpl and SetConstraintCommand to handle
> resizing the figure. If anyone need help at this
> point, let me know.
>
> Michael
>
> >On Thu, 12 Feb 2004 11:36:56 -0800 (PST),
> michaelsun@xxxxxxxxxx wrote:
>
> >
> > I only modified the NodeFigure to extends
> > RectangleFigure, rendering the Rectangle
> > shape works well in the viewer. But the NodeFigure
> > can not be resized. I take a look at the
> > NetworkNodeEditPart, still can not figure it out.
Any
> > help? thanks!
> >
> > Michael
> > _______________________________________________
> > gef-dev mailing list
> > gef-dev@xxxxxxxxxxx
> > http://dev.eclipse.org/mailman/listinfo/gef-dev
> _______________________________________________
> gef-dev mailing list
> gef-dev@xxxxxxxxxxx
> http://dev.eclipse.org/mailman/listinfo/gef-dev
_______________________________________________
gef-dev mailing list
gef-dev@xxxxxxxxxxx
http://dev.eclipse.org/mailman/listinfo/gef-dev

Follow-Ups:
- [gef-dev] edit part viewer exception.
  - From: Bharath S

References:
- Re: [gef-dev] Re: Resizing figures.
  - From: Randy Hudson

Prev by Date: [gef-dev] connection and gate
Next by Date: [gef-dev] edit part viewer exception.
Previous by thread: Re: [gef-dev] Re: Resizing figures.
Next by thread: [gef-dev] edit part viewer exception.
Index(es):
- Date
- Thread

Breadcrumbs