Merge pull request #98 from Unity-Technologies/wsy_scrollwindow

add scroll in editor window

com.unity.uiwidgets/Editor/UIWidgetsEditorPanel.cs

                 var pos = _getPointerPosition(evt.mousePosition);
                 _wrapper.OnMouseMove(pos);
             }
+            else if (evt.type == EventType.ScrollWheel && evt.delta.magnitude != 0) {
+                var delta = evt.delta;
+                delta.y /= 3f;
+                var pos = _getPointerPosition(evt.mousePosition);
+                _wrapper.OnMouseScroll(delta, pos);
+            }
             
         }
         

com.unity.uiwidgets/Runtime/rendering/list_wheel_viewport.cs

                 untransformedPaintingCoordinates.dx,
                 -_topScrollMarginExtent
             );
-
-
+            
             bool shouldApplyOffCenterDim = overAndUnderCenterOpacity < 1;
             if (useMagnifier || shouldApplyOffCenterDim) {
                 _paintChildWithMagnifier(context, offset, child, transform, offsetToCenter, untransformedPaintingCoordinates);
                         context1.pushTransform(
                             needsCompositing,
                             offset1,
-                            cylindricalTransform,
-                            // this._centerOriginTransform(cylindricalTransform),
+                            _magnifyTransform(),
                             (PaintingContext context2, Offset offset2) => {
                                 context2.paintChild(child, offset2 + untransformedPaintingCoordinates);
                             });