Yellow;

disabled Delete when trying to delete the background of the editor.
refs 2202

org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/internal/actions/DeleteAction.java

@@ -52,7 +52,7 @@ import org.fortiss.tooling.kernel.ui.service.IModelEditorBindingService;
  * @author hoelzl
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating YELLOW Hash: 77B414F02AC48706566ABE2730A3AABB
+ * @ConQAT.Rating YELLOW Hash: 321312CCB8B9B8E9973A26EEB4C895EF
  */
 public class DeleteAction extends EObjectActionBase<EObject> {
 
@@ -110,6 +110,15 @@ public class DeleteAction extends EObjectActionBase<EObject> {
 
 	/** Compute if one given target can be deleted. */
 	private boolean canDelete(EObject target) {
+
+		IWorkbenchPart activePart =
+				getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart();
+		if(activePart instanceof ExtendableMultiPageEditor) {
+			EObject editedObject = ((ExtendableMultiPageEditor)activePart).getEditedObject();
+			if(editedObject.equals(target))
+				return false;
+		}
+
 		if(!IPersistencyService.INSTANCE.isTopLevelElement(target)) {
 			// use composition services for deletion
 			return(IElementCompositorService.INSTANCE.canDecompose(target) || IConnectionCompositorService.INSTANCE