/**
* @see
* com.metamatrix.modeler.transformation.ui.builder.AbstractLanguageObjectEditor#createUi(org.eclipse.swt.widgets.Composite)
*/
@Override
protected void createUi(Composite theParent) {
pnlContent = new Composite(theParent, SWT.NONE);
pnlContent.setLayoutData(new GridData(GridData.FILL_BOTH));
pnlContent.setLayout(new FillLayout());
//
// pnlContent contents
//
viewer = ElementViewerFactory.createElementViewer(pnlContent);
viewer.addDoubleClickListener(
new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent theEvent) {
handleDoubleClick();
}
});
viewer.addSelectionChangedListener(
new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent theEvent) {
handleTreeSelection();
}
});
viewer.expandAll();
}
/** Handler for tree selection. */
void handleTreeSelection() {
IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
ElementSymbol element = null;
if (!selection.isEmpty()) {
ICriteriaStrategy strategy = ElementViewerFactory.getCriteriaStrategy(viewer);
strategy.setTreeViewer(viewer); // make sure this viewer is set before using strategy
if (strategy.isValid(selection.getFirstElement())) {
Object eObj = selection.getFirstElement();
if (eObj instanceof ElementSymbol) {
element = ((ElementSymbol) eObj);
} else {
element = new ElementSymbol(strategy.getRuntimeFullName(eObj), true);
// the viewer model contains EObjects. so the objects in the selection will
// be EObjects. since the EObject is used later on in the QueryCriteriaStrategy.getNode()
// method. save it here.
element.setMetadataID(eObj);
}
}
}
model.selectElementSymbol(element);
}
/**
* Constructs a <code>ElementEditor</code> using the given model.
*
* @param theParent the parent container
* @param theModel the editor's model
* @throws IllegalArgumentException if any of the parameters are <code>null</code>
*/
public ElementEditor(Composite theParent, ElementEditorModel theModel) {
super(theParent, ElementSymbol.class, theModel);
controller = new ViewController();
model = theModel;
model.addModelListener(controller);
// set the viewer on the CriteriaStrategy
strategy = ElementViewerFactory.getCriteriaStrategy(viewer);
strategy.setTreeViewer(viewer);
}
