org.geneweaver.query.ui.GraphNodeEditingSupport Maven / Gradle / Ivy

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package org.geneweaver.query.ui;

import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ComboBoxCellEditor;
import org.eclipse.jface.viewers.EditingSupport;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.geneweaver.query.dao.GraphNode;
import org.geneweaver.query.dao.MappedParameter;

class GraphNodeEditingSupport extends EditingSupport {

	private final TableViewer viewer;
	private final CellEditor editor;
	private InputMapPage page;

	public GraphNodeEditingSupport(InputMapPage page, TableViewer viewer) {
		super(viewer);
		this.viewer = viewer;
		this.page = page;
		this.editor = new ComboBoxCellEditor(viewer.getTable(), GraphNode.names(), SWT.READ_ONLY);
		((CCombo)editor.getControl()).addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				viewer.applyEditorValue();
				viewer.cancelEditing();
			}
		});
	}

	@Override
	protected CellEditor getCellEditor(Object element) {
		return editor;
	}

	@Override
	protected boolean canEdit(Object element) {
		return true;
	}

	@Override
	protected Object getValue(Object element) {
		MappedParameter p = (MappedParameter) element;
		if (p==null) return null;
		GraphNode sel = p.getNode();
		if (sel==null) return 0;
		return GraphNode.indexOf(sel);
	}

	@Override
	protected void setValue(Object element, Object userInputValue) {
		MappedParameter p = (MappedParameter) element;
		GraphNode node = GraphNode.get((Integer)userInputValue);
		p.setNode(node);
		viewer.update(element, null);
		page.validate(true);
	}
}