org.eclipse.viatra2.editor/src/org/eclipse/viatra2/treeeditor/actions/ViatraTreeEditorSelectionAction.java

/*******************************************************************************
 * Copyright (c) 2004-2008 Istvan Rath and Daniel Varro
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Istvan Rath - initial API and implementation
 *******************************************************************************/

 package org.eclipse.viatra2.treeeditor.actions;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchPart;

public abstract class ViatraTreeEditorSelectionAction extends Action {

	protected IWorkbenchPart iPart;
	
	public ViatraTreeEditorSelectionAction() {
	}
	
	public ViatraTreeEditorSelectionAction(IWorkbenchPart part) {
		iPart = part;
	}
	
	
	
	public void setWorkbenchPart(IWorkbenchPart part)
	{
		iPart = part;
	}
	
	/**
	 * Returns the selected objects in the tree viewer.
	 * @return
	 */
	public IStructuredSelection getSelectedObjects() {
		try {
			return (IStructuredSelection)iPart.getSite().getSelectionProvider().getSelection();
		}
		catch (ClassCastException e) {
			return null;
		}
	}

	/**
	 * Called when something has changed upon which the enabledness update must be propagated.
	 */
	public abstract void updateSelf();

	
	int order_number = 0;
	
	public Integer getOrderNumber() {
		return order_number;
	}
	
	public void setOrderNumber(int i) {
		order_number = i;
	}
}