| DND Source on PaletteViewer [message #221010] |
Tue, 08 August 2006 23:23  |
Eclipse User |
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Originally posted by: hcurtis.xaware.com
We are trying to use the GEF PaletteViewer in a separate plugin (Not a
graphic editor). In the createPartControl() of the view we are executing
the following:
IEditorPart ie = getSite().getPage().getActiveEditor();
domain = new DefaultEditDomain(ie);
provider = new PaletteViewerProvider(domain);
viewer = provider.createPaletteViewer(aParentComp);
I'm trying to add a SWT TransferDragSourceListener to the PaletteViewer.
viewer.addDragSourceListener(new PaletteDragSource(this));
There seems to be an initialization issue or perhaps there is all ready a
DragSource on the PaletteViewer. When the above line is executed I get:
org.eclipse.swt.SWTError: Cannot initialize Drag
at org.eclipse.swt.dnd.DND.error(DND.java:242)
at org.eclipse.swt.dnd.DND.error(DND.java:208)
at org.eclipse.swt.dnd.DragSource.<init>(DragSource.java:146)
at
org.eclipse.gef.ui.parts.AbstractEditPartViewer.refreshDragS ourceAdapter(AbstractEditPartViewer.java:464)
at
org.eclipse.gef.ui.parts.AbstractEditPartViewer.addDragSourc eListener(AbstractEditPartViewer.java:122)
at
com.xaware.ide.xadev.gui.view.palette.XAPaletteView.createPa rtControl(XAPaletteView.java:82)
........
Can someone suggest an approach to issolate the cause or (even better)
suggest why the error is occuring?
--
Bud Curtis
XAware, Inc.
719-884-5443
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| Re: DND Source on PaletteViewer [message #221017 is a reply to message #221010] |
Wed, 09 August 2006 00:20  |
| Eclipse User |
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Originally posted by: hcurtis.xaware.com
I know it is detecting an error in the DragSource constructor:
public DragSource(Control control, int style) {
super(control, checkStyle(style));
this.control = control;
if (control.getData(DRAGSOURCEID) != null) {
DND.error(DND.ERROR_CANNOT_INIT_DRAG); <-- This is the line with the
error
}
but when I start the process of adding the DragSourceListener
viewer.addDragSourceListener(new PaletteDragSource(this));
the control.getData(DRAGSOURCEID) is null. Ther must be a step I'm missing
in executing the
addDragSourceListener(...).
Any help would be much appreciated.
"Bud Curtis" <hcurtis@xaware.com> wrote in message
news:ebb6ag$s1h$1@utils.eclipse.org...
> We are trying to use the GEF PaletteViewer in a separate plugin (Not a
> graphic editor). In the createPartControl() of the view we are executing
> the following:
>
> IEditorPart ie = getSite().getPage().getActiveEditor();
> domain = new DefaultEditDomain(ie);
> provider = new PaletteViewerProvider(domain);
> viewer = provider.createPaletteViewer(aParentComp);
>
> I'm trying to add a SWT TransferDragSourceListener to the PaletteViewer.
>
> viewer.addDragSourceListener(new PaletteDragSource(this));
>
> There seems to be an initialization issue or perhaps there is all ready a
> DragSource on the PaletteViewer. When the above line is executed I get:
>
> org.eclipse.swt.SWTError: Cannot initialize Drag
> at org.eclipse.swt.dnd.DND.error(DND.java:242)
> at org.eclipse.swt.dnd.DND.error(DND.java:208)
> at org.eclipse.swt.dnd.DragSource.<init>(DragSource.java:146)
> at
> org.eclipse.gef.ui.parts.AbstractEditPartViewer.refreshDragS ourceAdapter(AbstractEditPartViewer.java:464)
> at
> org.eclipse.gef.ui.parts.AbstractEditPartViewer.addDragSourc eListener(AbstractEditPartViewer.java:122)
> at
> com.xaware.ide.xadev.gui.view.palette.XAPaletteView.createPa rtControl(XAPaletteView.java:82)
> .......
>
> Can someone suggest an approach to issolate the cause or (even better)
> suggest why the error is occuring?
>
>
> --
> Bud Curtis
> XAware, Inc.
> 719-884-5443
>
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