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diff --git a/src2/net/miginfocom/layout/LayoutCallback.java b/src2/net/miginfocom/layout/LayoutCallback.java
new file mode 100644
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+++ b/src2/net/miginfocom/layout/LayoutCallback.java
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+package net.miginfocom.layout;
+
+/*
+ * License (BSD):
+ * ==============
+ *
+ * Copyright (c) 2004, Mikael Grev, MiG InfoCom AB. (miglayout (at) miginfocom (dot) com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ * Neither the name of the MiG InfoCom AB nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * @version 1.0
+ * @author Mikael Grev, MiG InfoCom AB
+ *         Date: 2006-sep-08
+ */
+
+/** A class to extend if you want to provide more control over where a component is placed or the size of it.
+ * <p>
+ * Note! Returned arrays from this class will never be altered. This means that caching of arrays in these methods
+ * is OK.
+ */
+public abstract class LayoutCallback
+{
+	/** Returns a position similar to the "pos" the component constraint.
+	 * @param comp The component wrapper that holds the actual component (JComponent is Swing and Control in SWT).
+	 * <b>Should not be altered.</b>
+	 * @return The [x, y, x2, y2] as explained in the documentation for "pos". If <code>null</code>
+	 * is returned nothing is done and this is the default.
+	 * @see UnitValue
+	 * @see net.miginfocom.layout.ConstraintParser#parseUnitValue(String, boolean)
+	 */
+	public UnitValue[] getPosition(ComponentWrapper comp)
+	{
+		return null;
+	}
+
+	/** Returns a size similar to the "width" and "height" in the component constraint.
+	 * @param comp The component wrapper that holds the actual component (JComponent is Swing and Control in SWT).
+	 * <b>Should not be altered.</b>
+	 * @return The [width, height] as explained in the documentation for "width" and "height". If <code>null</code>
+	 * is returned nothing is done and this is the default.
+	 * @see net.miginfocom.layout.BoundSize
+	 * @see net.miginfocom.layout.ConstraintParser#parseBoundSize(String, boolean, boolean)
+	 */
+	public BoundSize[] getSize(ComponentWrapper comp)
+	{
+		return null;
+	}
+
+	/** A last minute change of the bounds. The bound for the layout cycle has been set and you can correct there
+	 * after any set of rules you like.
+	 * @param comp The component wrapper that holds the actual component (JComponent is Swing and Control in SWT).
+	 */
+	public void correctBounds(ComponentWrapper comp)
+	{
+	}
+}