Enable renaming in product and configuration editors

de.dlr.sc.virsat.model.extension.cefx.ui/src/de/dlr/sc/virsat/model/extension/cefx/ui/provider/VirSatNavigatorSeiIndexSorter.java

@@ -0,0 +1,52 @@
+/*******************************************************************************
+ * Copyright (c) 2008-2019 German Aerospace Center (DLR), Simulation and Software Technology, Germany.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package de.dlr.sc.virsat.model.extension.cefx.ui.provider;
+
+import org.eclipse.emf.ecore.resource.ResourceSet;
+import org.eclipse.jface.viewers.Viewer;
+
+import de.dlr.sc.virsat.model.dvlm.Repository;
+import de.dlr.sc.virsat.model.dvlm.structural.StructuralElementInstance;
+import de.dlr.sc.virsat.project.resources.VirSatResourceSet;
+import de.dlr.sc.virsat.project.ui.navigator.commonSorter.VirSatNavigatorSeiSorter;
+
+public class VirSatNavigatorSeiIndexSorter extends VirSatNavigatorSeiSorter {
+
+	@Override
+	public int compare(Viewer viewer, Object e1, Object e2) {
+		boolean e1Sei = e1 instanceof StructuralElementInstance;
+		boolean e2Sei = e2 instanceof StructuralElementInstance;
+
+		if (e1Sei && e2Sei) {
+			int indexE1 = 0;
+			int indexE2 = 0;
+			if (((StructuralElementInstance) e1).getParent() != null) {
+				StructuralElementInstance parent = ((StructuralElementInstance) e1).getParent();
+				indexE1 = parent.getChildren().indexOf(e1);
+				indexE2 = parent.getChildren().indexOf(e2);
+			} else {
+				ResourceSet resourceSet = ((StructuralElementInstance) e1).eResource().getResourceSet();
+				if (resourceSet instanceof VirSatResourceSet) {
+					Repository parent = ((VirSatResourceSet) resourceSet).getRepository();
+					indexE1 = parent.getRootEntities().indexOf(e1);
+					indexE2 = parent.getRootEntities().indexOf(e2);
+				}
+			}
+			if (indexE1 < indexE2) {
+				return -1;
+			} else if (indexE1 > indexE2) {
+				return 1;
+			}
+			return 0;
+		} else {
+			return super.compare(viewer, e1, e2);
+		}
+	}
+}