added element hierarchy path in tooltip of model element label provider.

refs 2030

org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/presentation/ModelElementLabelProvider.java

@@ -38,7 +38,7 @@ import org.fortiss.tooling.kernel.ui.service.IModelElementHandlerService;
  * @author mou
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating GREEN Hash: A7DB0900D1B6BC3C2705A4395A1D6193
+ * @ConQAT.Rating YELLOW Hash: F6AAEA54111EE758FA091DD36573B9DA
  */
 public class ModelElementLabelProvider extends ColumnLabelProvider {
 	/** {@inheritDoc} */
@@ -57,8 +57,7 @@ public class ModelElementLabelProvider extends ColumnLabelProvider {
 			error(getDefault(),
 					"Missing model element handler of non-INamedElement EObject of class " +
 							element.getClass());
-		}
-		if(element instanceof IStructuredSelection) {
+		} else if(element instanceof IStructuredSelection) {
 			return getText(getFirstElement((IStructuredSelection)element));
 		}
 		return super.getText(element);
@@ -78,6 +77,8 @@ public class ModelElementLabelProvider extends ColumnLabelProvider {
 				}
 				return res;
 			}
+		} else if(element instanceof IStructuredSelection) {
+			return getImage(getFirstElement((IStructuredSelection)element));
 		}
 		return super.getImage(element);
 	}
@@ -104,4 +105,37 @@ public class ModelElementLabelProvider extends ColumnLabelProvider {
 		}
 		return new Image(device, mergedImg);
 	}
+
+	/** {@inheritDoc} */
+	@Override
+	public String getToolTipText(Object element) {
+		if(element instanceof EObject) {
+			EObject eobj = (EObject)element;
+			String tip = getToolTipText(eobj.eContainer());
+
+			if(tip == null) {
+				tip = "";
+			}
+
+			if(element instanceof INamedElement) {
+				String linesep = System.getProperty("line.separator");
+				if(tip.length() > 0) {
+					String leadingspace = "";
+					for(@SuppressWarnings("unused") String line : tip.split(linesep)) {
+						leadingspace += "    ";
+					}
+
+					tip += linesep + leadingspace + "- ";
+				}
+				tip += getText(element) + " (" + eobj.eClass().getName() + ")";
+			}
+
+			return tip;
+
+		} else if(element instanceof IStructuredSelection) {
+			return getToolTipText(getFirstElement((IStructuredSelection)element));
+		}
+
+		return super.getToolTipText(element);
+	}
 }