plugins/org.eclipse.viatra2.visualisation/src/org/eclipse/viatra2/visualisation/patterns/actions/VisualisePatternGraphAction.java

/*******************************************************************************
 * Copyright (c) 2009 Zoltan Ujhelyi 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:
 *    Zoltan Ujhelyi - initial API and implementation
 *******************************************************************************/
package org.eclipse.viatra2.visualisation.patterns.actions;

import org.eclipse.viatra2.frameworkgui.actions.AbstractFrameworkGUIAction;
import org.eclipse.viatra2.frameworkgui.content.transformation.TransformationContent.MachineDummy;
import org.eclipse.viatra2.gtasmmodel.gtasm.metamodel.asm.definitions.Machine;
import org.eclipse.viatra2.visualisation.IVisualisationDescriptor;
import org.eclipse.viatra2.visualisation.patterns.PatternGraphDescriptor;
import org.eclipse.viatra2.visualisation.view.ViatraVisualisationView;

/**
 * This action is used to display a pattern graph in the graph viewer
 * @author Zoltan Ujhelyi
 *
 */
public class VisualisePatternGraphAction extends AbstractFrameworkGUIAction {

	/**
	 * Initializes a pattern graph visualisation action.
	 */
	public VisualisePatternGraphAction() {
		setText("Visualise Pattern Graph");
		setToolTipText("Displays patterns from this machine visually.");
	}

	/* (non-Javadoc)
	 * @see org.eclipse.viatra2.frameworkgui.actions.AbstractFrameworkGUIAction#isEnabled()
	 */
	@Override
	public boolean isEnabled() {
		return true;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.action.Action#run()
	 */
	@Override
	public void run() {
		super.run();
		refreshSelection();
		Object c = getFirstSelected();
		if (c instanceof MachineDummy) {
			Machine machine = ((MachineDummy) c).getMachine();
			ViatraVisualisationView view = ViatraVisualisationView.openView();
			IVisualisationDescriptor newDescriptor = view.getDescriptor(machine);
			PatternGraphDescriptor descriptor;
			if (newDescriptor == null || !(newDescriptor instanceof PatternGraphDescriptor)) {
				descriptor = new PatternGraphDescriptor();
				descriptor.setMachine(machine);
			} else {
				descriptor = (PatternGraphDescriptor) newDescriptor;
			}
			view.setDescriptor(machine, descriptor);
		}
	}

}