Index: graph/lib/apichanges.xml
===================================================================
RCS file: /cvs/graph/lib/apichanges.xml,v
--- graph/lib/apichanges.xml	3 Apr 2007 16:59:58 -0000	1.8
+++ graph/lib/apichanges.xml	28 May 2007 14:08:00 -0000
@@ -137,6 +137,19 @@ 
             <class package="org.netbeans.api.visual.widget" name="Widget" link="yes"/>
             <issue number="98307"/>
         </change>
+
+        <change>
+            <api name="general"/>
+            <summary>Mouse dragging event processing improved</summary>
+            <version major="2" minor="3"/>
+            <date day="28" month="5" year="2007"/>
+            <author login="dkaspar"/>
+            <compatibility addition="yes"/>
+            <description>
+                Mouse dragging event processing improved. MoveAction and others are now smoothly scrolling a view.
+            </description>
+            <issue number="101523"/>
+        </change>
     </changes>
 
     <htmlcontents>
Index: graph/lib/manifest.mf
===================================================================
RCS file: /cvs/graph/lib/manifest.mf,v
--- graph/lib/manifest.mf	6 Apr 2007 06:43:33 -0000	1.9
+++ graph/lib/manifest.mf	28 May 2007 14:08:00 -0000
@@ -1,4 +1,4 @@ 
 Manifest-Version: 1.0
 OpenIDE-Module: org.netbeans.api.visual
 OpenIDE-Module-Localizing-Bundle: org/netbeans/modules/visual/resources/Bundle.properties
-OpenIDE-Module-Specification-Version: 2.1
+OpenIDE-Module-Specification-Version: 2.3
Index: graph/lib/src/org/netbeans/api/visual/widget/SceneComponent.java
===================================================================
RCS file: /cvs/graph/lib/src/org/netbeans/api/visual/widget/SceneComponent.java,v
--- graph/lib/src/org/netbeans/api/visual/widget/SceneComponent.java	10 Apr 2007 11:50:44 -0000	1.36
+++ graph/lib/src/org/netbeans/api/visual/widget/SceneComponent.java	28 May 2007 14:08:00 -0000
@@ -34,11 +34,14 @@ 
  */
 final class SceneComponent extends JComponent implements MouseListener, MouseMotionListener, KeyListener, MouseWheelListener,FocusListener, DropTargetListener {
 
+    private static final int AUTO_SHIFT = 32;
+
     private Scene scene;
     private Widget lockedWidget;
     private WidgetAction lockedAction;
     private long eventIDcounter = 0;
     private AccessibleContext accessibleContext;
+    private Point shiftedMouseLocation = new Point ();
 
     public SceneComponent (Scene scene) {
         this.scene = scene;
@@ -208,7 +211,11 @@ 
     }
 
     private WidgetAction.State processLocationOperator (Operator operator, WidgetAction.WidgetLocationEvent event) {
-        event.setPoint (scene.convertViewToScene (event.getPoint ()));
+        Point viewPoint = event.getPoint ();
+        Point oldScenePoint = scene.convertViewToScene (viewPoint);
+        Point scenePoint = new Point (oldScenePoint);
+        scenePoint.translate (- shiftedMouseLocation.x, - shiftedMouseLocation.y);
+        event.setPoint (scenePoint);
 
         WidgetAction.State state;
         Point location;
@@ -244,9 +251,29 @@ 
         lockedAction = state.getLockedAction ();
         scene.validate ();
 
-        if (lockedWidget != null)
+        if (lockedWidget != null) {
+            Point previousScreenLocation = getLocationOnScreen ();
             scrollRectToVisible (scene.convertSceneToView (lockedWidget.convertLocalToScene (lockedWidget.getBounds ())));
-
+            Point newScreenLocation = getLocationOnScreen ();
+            Point newViewPoint = new Point (viewPoint);
+            newViewPoint.translate (- (newScreenLocation.x - previousScreenLocation.x), - (newScreenLocation.y - previousScreenLocation.y));
+            Point newScenePoint = scene.convertViewToScene (newViewPoint);
+            shiftedMouseLocation.x += newScenePoint.x - oldScenePoint.x;
+            shiftedMouseLocation.y += newScenePoint.y - oldScenePoint.y;
+            if (operator == Operator.MOUSE_DRAGGED) {
+                Rectangle visibleRect = getVisibleRect ();
+                if (viewPoint.x < visibleRect.x)
+                    shiftedMouseLocation.x += AUTO_SHIFT;
+                else if (viewPoint.x >= visibleRect.x + visibleRect.width)
+                    shiftedMouseLocation.x -= AUTO_SHIFT;
+                if (viewPoint.y < visibleRect.y)
+                    shiftedMouseLocation.y += AUTO_SHIFT;
+                else if (viewPoint.y >= visibleRect.y + visibleRect.width)
+                    shiftedMouseLocation.y -= AUTO_SHIFT;
+            }
+        } else
+            shiftedMouseLocation.x = shiftedMouseLocation.y = 0;
+            
         return state;
     }