--- a/doodle/tk/events.d	Thu Aug 12 16:35:24 2010 +0930
+++ b/doodle/tk/events.d	Thu Aug 12 22:21:12 2010 +0930
@@ -6,8 +6,7 @@
 }
 
 // FIXME
-// Do we need FocusEvent, Enter/LeaveEvent ?
-// Note, FocusEvent has no mask but Enter/Leave do.
+// Do we need FocusEvent. Note, it has no mask.
 // Hence would need to refactor hierarchy slightly, eg InputEvent
 
 abstract class Event {
@@ -58,16 +57,25 @@
     }
 }
 
-/*
 final class CrossingEvent : PointerEvent {
-    this(in Mask mask) {
-        super(mask);
+    this(in CrossingMode crossingMode,
+         in Point pixelPoint,
+         in Point modelPoint,
+         in Mask mask) {
+        super(pixelPoint, modelPoint, mask);
+        _crossingMode = crossingMode;
+    }
+
+    CrossingMode crossingMode() const { return _crossingMode; }
+
+    override string toString() const {
+        return std.string.format("Crossing event: %s, %s, %s, %s", enumToString(_crossingMode), pixelPoint, modelPoint, mask);
     }
 
     private {
+        CrossingMode _crossingMode;
     }
 }
-*/
 
 final class ButtonEvent : PointerEvent {
     this(in ButtonAction buttonAction,