Added DropDown for Choice Kind property

plugins/org.yakindu.sct.ui.editor/src/org/yakindu/sct/ui/editor/propertysheets/ChoicePropertySection.java

@@ -12,10 +12,18 @@
 package org.yakindu.sct.ui.editor.propertysheets;
 
 import org.eclipse.emf.databinding.EMFDataBindingContext;
+import org.eclipse.emf.databinding.IEMFValueProperty;
+import org.eclipse.emf.databinding.edit.EMFEditProperties;
 import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.transaction.util.TransactionUtil;
+import org.eclipse.jface.databinding.viewers.ViewerProperties;
 import org.eclipse.jface.layout.GridDataFactory;
+import org.eclipse.jface.viewers.ArrayContentProvider;
+import org.eclipse.jface.viewers.ComboViewer;
+import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Label;
+import org.yakindu.sct.model.sgraph.ChoiceKind;
 import org.yakindu.sct.model.sgraph.SGraphPackage;
 import org.yakindu.sct.ui.editor.propertysheets.OrderElementControl.ISourceObjectCallback;
 
@@ -24,28 +32,40 @@ import org.yakindu.sct.ui.editor.propertysheets.OrderElementControl.ISourceObjec
  * @author andreas muelder - Initial contribution and API
  * 
  */
-public class ChoicePropertySection extends AbstractEditorPropertySection
-		implements ISourceObjectCallback {
+public class ChoicePropertySection extends AbstractEditorPropertySection implements ISourceObjectCallback {
 
 	private OrderElementControl orderElementControl;
+	private ComboViewer choiceKindViewer;
 
 	@Override
 	public void createControls(Composite parent) {
-		Label label = getToolkit().createLabel(parent, "Transition Priority:");
+
+		Label label = getToolkit().createLabel(parent, "Choice kind:");
+		GridDataFactory.fillDefaults().applyTo(label);
+		choiceKindViewer = new ComboViewer(parent);
+		GridDataFactory.fillDefaults().grab(true, false).applyTo(choiceKindViewer.getControl());
+		choiceKindViewer.setContentProvider(new ArrayContentProvider());
+		choiceKindViewer.setLabelProvider(new LabelProvider());
+		choiceKindViewer.setInput(ChoiceKind.values());
+		label = getToolkit().createLabel(parent, "Transition Priority:");
 		GridDataFactory.fillDefaults().applyTo(label);
-		orderElementControl = new OrderElementControl(
-				parent, SGraphPackage.Literals.VERTEX__OUTGOING_TRANSITIONS,
-				this);
-		GridDataFactory.fillDefaults().grab(true, false)
-				.applyTo(orderElementControl);
+		orderElementControl = new OrderElementControl(parent, SGraphPackage.Literals.VERTEX__OUTGOING_TRANSITIONS, this);
+		GridDataFactory.fillDefaults().grab(true, false).applyTo(orderElementControl);
 	}
 
 	@Override
 	public void bindModel(EMFDataBindingContext context) {
 		orderElementControl.refreshInput();
+		bindChoiceKind(context);
+	}
+
+	protected void bindChoiceKind(EMFDataBindingContext context) {
+		IEMFValueProperty property = EMFEditProperties.value(TransactionUtil.getEditingDomain(eObject),
+				SGraphPackage.Literals.CHOICE__KIND);
+		context.bindValue(ViewerProperties.singleSelection().observe(choiceKindViewer), property.observe(eObject));
 	}
 
-	//Enhance visibility
+	// Enhance visibility
 	@Override
 	public EObject getEObject() {
 		return super.getEObject();