/* * Copyright (c) 1995, 2005, Oracle and/or its affiliates. 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.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.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);}