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diff --git a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/TreeDropTargetEffect.java b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/TreeDropTargetEffect.java
deleted file mode 100644
index ace9718800..0000000000
--- a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/gtk/org/eclipse/swt/dnd/TreeDropTargetEffect.java
+++ /dev/null
@@ -1,222 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2008 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- *     IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.swt.dnd;
-
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.internal.gtk.*;
-import org.eclipse.swt.widgets.*;
-
-/**
- * This class provides a default drag under effect (eg. select, insert, scroll and expand) 
- * when a drag occurs over a <code>Tree</code>.
- * 
- * <p>Classes that wish to provide their own drag under effect for a <code>Tree</code>
- * can extend the <code>TreeDropTargetEffect</code> class and override any applicable methods 
- * in <code>TreeDropTargetEffect</code> to display their own drag under effect.</p>
- *
- * Subclasses that override any methods of this class must call the corresponding
- * <code>super</code> method to get the default drag under effect implementation.
- *
- * <p>The feedback value is either one of the FEEDBACK constants defined in 
- * class <code>DND</code> which is applicable to instances of this class, 
- * or it must be built by <em>bitwise OR</em>'ing together 
- * (that is, using the <code>int</code> "|" operator) two or more
- * of those <code>DND</code> effect constants. 
- * </p>
- * <p>
- * <dl>
- * <dt><b>Feedback:</b></dt>
- * <dd>FEEDBACK_SELECT, FEEDBACK_INSERT_BEFORE, FEEDBACK_INSERT_AFTER, FEEDBACK_EXPAND, FEEDBACK_SCROLL</dd>
- * </dl>
- * </p><p>
- * Note: Only one of the styles FEEDBACK_SELECT, FEEDBACK_INSERT_BEFORE or
- * FEEDBACK_INSERT_AFTER may be specified.
- * </p>
- * 
- * @see DropTargetAdapter
- * @see DropTargetEvent
- * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
- * 
- * @since 3.3
- */
-public class TreeDropTargetEffect extends DropTargetEffect {
-	static final int SCROLL_HYSTERESIS = 150; // milli seconds
-	static final int EXPAND_HYSTERESIS = 1000; // milli seconds
-
-	int scrollIndex = -1;
-	long scrollBeginTime;
-
-	int expandIndex = -1;
-	long expandBeginTime;
-
-	/**
-	 * Creates a new <code>TreeDropTargetEffect</code> to handle the drag under effect on the specified 
-	 * <code>Tree</code>.
-	 * 
-	 * @param tree the <code>Tree</code> over which the user positions the cursor to drop the data
-	 */
-	public TreeDropTargetEffect(Tree tree) {
-		super(tree);
-	}
-
-	int checkEffect(int effect) {
-		// Some effects are mutually exclusive.  Make sure that only one of the mutually exclusive effects has been specified.
-		if ((effect & DND.FEEDBACK_SELECT) != 0) effect = effect & ~DND.FEEDBACK_INSERT_AFTER & ~DND.FEEDBACK_INSERT_BEFORE;
-		if ((effect & DND.FEEDBACK_INSERT_BEFORE) != 0) effect = effect & ~DND.FEEDBACK_INSERT_AFTER;
-		return effect;
-	}
-
-	/**
-	 * This implementation of <code>dragEnter</code> provides a default drag under effect
-	 * for the feedback specified in <code>event.feedback</code>.
-	 * 
-	 * For additional information see <code>DropTargetAdapter.dragEnter</code>.
-	 * 
-	 * Subclasses that override this method should call <code>super.dragEnter(event)</code>
-	 * to get the default drag under effect implementation.
-	 *
-	 * @param event  the information associated with the drag enter event
-	 * 
-	 * @see DropTargetAdapter
-	 * @see DropTargetEvent
-	 */
-	public void dragEnter(DropTargetEvent event) {
-		expandBeginTime = 0;
-		expandIndex = -1;	
-		scrollBeginTime = 0;
-		scrollIndex = -1;
-	}
-	
-	/**
-	 * This implementation of <code>dragLeave</code> provides a default drag under effect
-	 * for the feedback specified in <code>event.feedback</code>.
-	 * 
-	 * For additional information see <code>DropTargetAdapter.dragLeave</code>.
-	 * 
-	 * Subclasses that override this method should call <code>super.dragLeave(event)</code>
-	 * to get the default drag under effect implementation.
-	 *
-	 * @param event  the information associated with the drag leave event
-	 * 
-	 * @see DropTargetAdapter
-	 * @see DropTargetEvent
-	 */
-	public void dragLeave(DropTargetEvent event) {
-		Tree tree = (Tree) control;
-		int /*long*/ handle = tree.handle;
-		OS.gtk_tree_view_set_drag_dest_row(handle, 0, OS.GTK_TREE_VIEW_DROP_BEFORE);
-
-		scrollBeginTime = 0;
-		scrollIndex = -1;
-		expandBeginTime = 0;
-		expandIndex = -1;
-	}
-
-	/**
-	 * This implementation of <code>dragOver</code> provides a default drag under effect
-	 * for the feedback specified in <code>event.feedback</code>.
-	 * 
-	 * For additional information see <code>DropTargetAdapter.dragOver</code>.
-	 * 
-	 * Subclasses that override this method should call <code>super.dragOver(event)</code>
-	 * to get the default drag under effect implementation.
-	 *
-	 * @param event  the information associated with the drag over event
-	 * 
-	 * @see DropTargetAdapter
-	 * @see DropTargetEvent
-	 * @see DND#FEEDBACK_SELECT
-	 * @see DND#FEEDBACK_INSERT_BEFORE
-	 * @see DND#FEEDBACK_INSERT_AFTER
-	 * @see DND#FEEDBACK_SCROLL
-	 */
-	public void dragOver(DropTargetEvent event) {
-		Tree tree = (Tree) control;
-		int effect = checkEffect(event.feedback);
-
-		int /*long*/ handle = tree.handle;
-		Point coordinates = new Point(event.x, event.y);
-		coordinates = tree.toControl(coordinates);
-		int /*long*/ [] path = new int /*long*/ [1];
-		OS.gtk_tree_view_get_path_at_pos (handle, coordinates.x, coordinates.y, path, null, null, null);
-		int index = -1;
-		if (path[0] != 0) {
-			int /*long*/ indices = OS.gtk_tree_path_get_indices(path[0]);
-			if (indices != 0) {	
-				int depth = OS.gtk_tree_path_get_depth(path[0]);
-				int[] temp = new int[depth];
-				OS.memmove (temp, indices, temp.length * 4);
-				index = temp[temp.length - 1];
-			}
-		}
-		if ((effect & DND.FEEDBACK_SCROLL) == 0) {
-			scrollBeginTime = 0;
-			scrollIndex = -1;
-		} else {
-			if (index != -1 && scrollIndex == index && scrollBeginTime != 0) {
-				if (System.currentTimeMillis() >= scrollBeginTime) {
-					GdkRectangle cellRect = new GdkRectangle ();
-					OS.gtk_tree_view_get_cell_area (handle, path[0], 0, cellRect);
-					if (cellRect.y < cellRect.height) {
-						int[] tx = new int[1], ty = new int[1];
-						OS.gtk_tree_view_widget_to_tree_coords(handle, cellRect.x, cellRect.y - cellRect.height, tx, ty);
-						OS.gtk_tree_view_scroll_to_point (handle, -1, ty[0]);
-					} else {
-						//scroll down
-						OS.gtk_tree_view_get_path_at_pos (handle, coordinates.x, coordinates.y + cellRect.height, path, null, null, null);
-						if (path[0] != 0) {
-							OS.gtk_tree_view_scroll_to_cell(handle, path[0], 0, false, 0, 0);
-							OS.gtk_tree_path_free(path[0]);
-							path[0] = 0;
-						}
-						OS.gtk_tree_view_get_path_at_pos (handle, coordinates.x, coordinates.y, path, null, null, null);	
-					}
-					scrollBeginTime = 0;
-					scrollIndex = -1;
-				}
-			} else {
-				scrollBeginTime = System.currentTimeMillis() + SCROLL_HYSTERESIS;
-				scrollIndex = index;
-			}
-		}
-		if ((effect & DND.FEEDBACK_EXPAND) == 0) {
-			expandBeginTime = 0;
-			expandIndex = -1;
-		} else {
-			if (index != -1 && expandIndex == index && expandBeginTime != 0) {
-				if (System.currentTimeMillis() >= expandBeginTime) {
-					OS.gtk_tree_view_expand_row (handle, path[0], false);
-					expandBeginTime = 0;
-					expandIndex = -1;
-				}
-			} else {
-				expandBeginTime = System.currentTimeMillis() + EXPAND_HYSTERESIS;
-				expandIndex = index;
-			}
-		}
-		if (path[0] != 0) {
-			int position = -1;
-			if ((effect & DND.FEEDBACK_SELECT) != 0) position = OS.GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
-			if ((effect & DND.FEEDBACK_INSERT_BEFORE) != 0) position = OS.GTK_TREE_VIEW_DROP_BEFORE;
-			if ((effect & DND.FEEDBACK_INSERT_AFTER) != 0) position = OS.GTK_TREE_VIEW_DROP_AFTER;		
-			if (position != -1) {
-				OS.gtk_tree_view_set_drag_dest_row(handle, path[0], position);
-			} else {
-				OS.gtk_tree_view_set_drag_dest_row(handle, 0, OS.GTK_TREE_VIEW_DROP_BEFORE);
-			}
-		} else {
-			OS.gtk_tree_view_set_drag_dest_row(handle, 0, OS.GTK_TREE_VIEW_DROP_BEFORE);
-		}
-		
-		if (path[0] != 0) OS.gtk_tree_path_free (path [0]);
-	}
-
-}