1 files changed, 76 insertions, 0 deletions
diff --git a/plugins/facet/org.eclipse.papyrus.emf.facet.util.emf.ui/src/org/eclipse/emf/facet/util/emf/ui/internal/dialogs/CreateInstanceDialog.java b/plugins/facet/org.eclipse.papyrus.emf.facet.util.emf.ui/src/org/eclipse/emf/facet/util/emf/ui/internal/dialogs/CreateInstanceDialog.java
new file mode 100644
index 00000000000..7a2b6d72ad9
--- /dev/null
+++ b/plugins/facet/org.eclipse.papyrus.emf.facet.util.emf.ui/src/org/eclipse/emf/facet/util/emf/ui/internal/dialogs/CreateInstanceDialog.java
@@ -0,0 +1,76 @@
+/*******************************************************************************
+ * Copyright (c) 2010 CEA LIST.
+ *
+ * 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:
+ *   Nicolas Bros (Mia-Software) - initial API and implementation
+ *   Gregoire Dupe (Mia-Software) - Bug 369987 - [Restructuring][Table] Switch to the new customization and facet framework
+ *   Laurent Pichierri (Soft-Maint) - Bug 371204 - Compatibility with Helios
+ *******************************************************************************/
+package org.eclipse.emf.facet.util.emf.ui.internal.dialogs;
+
+import java.util.List;
+import java.util.ListIterator;
+
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.facet.util.emf.core.ModelUtils;
+import org.eclipse.emf.facet.util.emf.ui.internal.Messages;
+import org.eclipse.jface.viewers.LabelProvider;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.dialogs.ElementListSelectionDialog;
+
+public final class CreateInstanceDialog {
+
+	private CreateInstanceDialog() {
+		//
+	}
+
+	/**
+	 * Open a dialog with a list of metaclasses that are subclasses of the given
+	 * {@link EClass}. When the user chooses a metaclass, an instance is created
+	 * an returned.
+	 * 
+	 * @param shell
+	 *            the parent shell for the dialog
+	 * @param eClass
+	 *            the {@link EClass} of the new instance
+	 * @param labelProvider
+	 *            label provider for the displayed {@link EClass}es.
+	 * @return the created instance, or <code>null</code> if the user cancelled
+	 */
+	public static EObject open(final Shell shell, final EClass eClass,
+			final LabelProvider labelProvider) {
+		List<EClass> allSubClasses = ModelUtils.allSubClasses(eClass);
+		allSubClasses.add(eClass);
+		// remove non-instantiable metaclasses
+		ListIterator<EClass> listIterator = allSubClasses.listIterator();
+		while (listIterator.hasNext()) {
+			EClass e = listIterator.next();
+			if (e.isAbstract() || e.isInterface()) {
+				listIterator.remove();
+			}
+		}
+
+		ElementListSelectionDialog eClassSelectionDialog = new ElementListSelectionDialog(shell,
+				labelProvider);
+		eClassSelectionDialog.setTitle(Messages.CreateInstanceDialog_selectNewInstanceEClass);
+		eClassSelectionDialog.setElements(allSubClasses.toArray());
+		eClassSelectionDialog.open();
+		Object selectedElement = eClassSelectionDialog.getFirstResult();
+		if (selectedElement instanceof EClass) {
+			EClass selectedEClass = (EClass) selectedElement;
+			if (!selectedEClass.isInterface() && !selectedEClass.isAbstract()) {
+				EObject eObject = selectedEClass.getEPackage().getEFactoryInstance()
+						.create(selectedEClass);
+				return eObject;
+			}
+		}
+		return null;
+	}
+
+}