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[Resolved] - EMF / JFace howto do a 'double' databinding [message #759163]

Sun, 27 November 2011 08:50

Bernard Sarter

Messages: 88
Registered: August 2011
Location: Paris, France

Member

Hello,

I would like to do a "double" databinding between an EMF model and a JFace TableViewer:
A) one EAttribute of an EOBject shall provide the text of a Cell,
* and *
B) one other EAttribute of an other EObject shall provide the background colour of the same Cell.

I know how to do A) (see snippet below), but I don't have the beginning of an idea about how to do B), ie how to add a second binding and a second LabelProvider to the same column.

    
    @Override
    public void createPartControl(Composite parent) {

        fViewer = new TableViewer(parent, SWT.FULL_SELECTION | SWT.BORDER | SWT.MULTI);

        final Table table = fViewer.getTable();
        table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 0, 0));

        ObservableListContentProvider cp = new ObservableListContentProvider();
        fViewer.setContentProvider(cp);

        IObservableSet set = cp.getKnownElements();

        {
            IValueProperty property = EMFProperties.value(SysmodPackage.Literals.MODEL_ELEMENT__NAME);
            final TableViewerColumn column = new TableViewerColumn(fViewer, SWT.LEAD);
            column.getColumn().setText("title");
            column.setLabelProvider(new ObservableMapCellLabelProvider(property.observeDetail(set)) {
                @Override
                public void update(ViewerCell cell) {
                    String s = (String) attributeMaps[0].get(cell.getElement());
                    cell.setText(s);
                }
            });
        }

        final IObservableList data = EMFProperties.list(SysmodPackage.Literals.MODEL__FOO).observeDetail(master);
        fViewer.setInput(data);

Any suggestions or comments welcome!

Best regards,
Bernard.

[Updated on: Tue, 29 November 2011 20:26]

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