Index: DiagramEditor.java
===================================================================
RCS file: /cvsroot/modeling/org.eclipse.gmf/plugins/org.eclipse.gmf.runtime.diagram.ui/src/org/eclipse/gmf/runtime/diagram/ui/parts/DiagramEditor.java,v
retrieving revision 1.35
diff -u -r1.35 DiagramEditor.java
--- DiagramEditor.java	21 Nov 2007 17:57:28 -0000	1.35
+++ DiagramEditor.java	22 Nov 2007 11:22:58 -0000
@@ -54,6 +54,8 @@
 import org.eclipse.gef.KeyHandler;
 import org.eclipse.gef.KeyStroke;
 import org.eclipse.gef.LayerConstants;
+import org.eclipse.gef.MouseWheelHandler;
+import org.eclipse.gef.MouseWheelZoomHandler;
 import org.eclipse.gef.RootEditPart;
 import org.eclipse.gef.SnapToGeometry;
 import org.eclipse.gef.SnapToGrid;
@@ -1427,6 +1429,10 @@
             .getGridSpacing();
         ((DiagramRootEditPart) getDiagramEditPart().getRoot())
             .setGridSpacing(dSpacing);
+        
+        // Scroll-wheel Zoom
+        getGraphicalViewer().setProperty(MouseWheelHandler.KeyGenerator.getKey(SWT.CTRL), MouseWheelZoomHandler.SINGLETON);
+
     }
 
     /**