Added possibility to specify overlay in ModelElementHandler.

org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/extension/base/.ratings

@@ -4,7 +4,7 @@ EObjectActionBase.java 67c307ac15d7f45ad970ab1df42f4729fee09518 GREEN
 EReferencePropertySectionBase.java d4cce5af54efc59b33415a34d5130ab8952d60ce GREEN
 EditorBase.java 3af0350a488adf676d5b5e5ccad2087fb97c3d5b GREEN
 ModelEditorBindingBase.java 12f6323750cde28cefa99c1ec9d45191c8779109 GREEN
-ModelElementHandlerBase.java 135d078a83e2174e762168d7467b6def2ad26273 GREEN
+ModelElementHandlerBase.java 56590eab74170f91e2760ec5d44d2653667f1f94 YELLOW
 MultiEObjectActionBase.java ab9170f3918a069fa2a3aabae0436618317fa7b8 GREEN
 NamedCommentedModelElementHandlerBase.java 8f9cb1e750afb577f528d330165a9f377e23aa8b GREEN
 PropertySectionBase.java f8e2cf4444ab4808ac8c45b65840619b367ba112 GREEN

org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/extension/base/ModelElementHandlerBase.java

@@ -22,7 +22,9 @@ import java.util.Map;
 
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.viewers.DecorationOverlayIcon;
 import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
 import org.fortiss.tooling.kernel.ui.extension.IModelElementHandler;
 
 /**
@@ -58,6 +60,17 @@ public abstract class ModelElementHandlerBase<T extends EObject> implements IMod
 			iconImage = descr.createImage();
 			iconImages.put(descr, iconImage);
 		}
+
+		ImageDescriptor overlay = getIconOverlay(element);
+		if(overlay != null) {
+			Point resultImgSize = new Point(16, 16);
+			ImageDescriptor[] overlaysArray = new ImageDescriptor[] {null, null, null,
+					overlay, null};
+			DecorationOverlayIcon decorated =
+					new DecorationOverlayIcon(iconImage, overlaysArray, resultImgSize);
+			return decorated.createImage();
+		}
+
 		return iconImage;
 	}
 
@@ -127,4 +140,15 @@ public abstract class ModelElementHandlerBase<T extends EObject> implements IMod
 	public EObject getPropertySectionRetargetElement(T element) {
 		return element;
 	}
+
+	/**
+	 * Retrieves the overlay, that is applied to the icon of the given element.
+	 * 
+	 * @param element
+	 *            The element for which its icon shall be decorated with the overlay.
+	 * @return The decoration overlay for element's icon.
+	 */
+	public ImageDescriptor getIconOverlay(T element) {
+		return null;
+	}
 }