GenericCopyFeature.java

package net.certware.sacm.graphiti.feature;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.ICopyContext;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.ui.features.AbstractCopyFeature;

public class GenericCopyFeature extends AbstractCopyFeature {

	public GenericCopyFeature(IFeatureProvider fp) {
		super(fp);
	}

	@Override
	public boolean canCopy(ICopyContext context) {
		final PictogramElement[] pes = context.getPictogramElements();
		if (pes == null || pes.length == 0) {  // nothing selected
			return false;
		}

		// return true, if all selected elements are a EClasses
		for (PictogramElement pe : pes) {
			final Object bo = getBusinessObjectForPictogramElement(pe);
			if (!(bo instanceof EClass)) { // TODO should not allow non-SACM objects
				return false;
			}
		}
		return true;
	}

	@Override
	public void copy(ICopyContext context) {

		PictogramElement[] pes = context.getPictogramElements();
		Object[] bos = new Object[pes.length ];
		for (int i = 0; i < pes.length ; i++) {
			PictogramElement pe = pes[i];
			bos[i] = getBusinessObjectForPictogramElement(pe);
		}

		putToClipboard(bos);
	}


}