--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/awt/LayoutManager.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,83 @@
+/*
+ * Copyright 1995-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package java.awt;
+
+/**
+ * Defines the interface for classes that know how to lay out
+ * <code>Container</code>s.
+ * <p>
+ * Swing's painting architecture assumes the children of a
+ * <code>JComponent</code> do not overlap.  If a
+ * <code>JComponent</code>'s <code>LayoutManager</code> allows
+ * children to overlap, the <code>JComponent</code> must override
+ * <code>isOptimizedDrawingEnabled</code> to return false.
+ *
+ * @see Container
+ * @see javax.swing.JComponent#isOptimizedDrawingEnabled
+ *
+ * @author      Sami Shaio
+ * @author      Arthur van Hoff
+ */
+public interface LayoutManager {
+    /**
+     * If the layout manager uses a per-component string,
+     * adds the component <code>comp</code> to the layout,
+     * associating it
+     * with the string specified by <code>name</code>.
+     *
+     * @param name the string to be associated with the component
+     * @param comp the component to be added
+     */
+    void addLayoutComponent(String name, Component comp);
+
+    /**
+     * Removes the specified component from the layout.
+     * @param comp the component to be removed
+     */
+    void removeLayoutComponent(Component comp);
+
+    /**
+     * Calculates the preferred size dimensions for the specified
+     * container, given the components it contains.
+     * @param parent the container to be laid out
+     *
+     * @see #minimumLayoutSize
+     */
+    Dimension preferredLayoutSize(Container parent);
+
+    /**
+     * Calculates the minimum size dimensions for the specified
+     * container, given the components it contains.
+     * @param parent the component to be laid out
+     * @see #preferredLayoutSize
+     */
+    Dimension minimumLayoutSize(Container parent);
+
+    /**
+     * Lays out the specified container.
+     * @param parent the container to be laid out
+     */
+    void layoutContainer(Container parent);
+}