Java tutorial
/* * Copyright (c) 1995, 2014, 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}s. * <p> * Swing's painting architecture assumes the children of a * {@code JComponent} do not overlap. If a * {@code JComponent}'s {@code LayoutManager} allows * children to overlap, the {@code JComponent} must override * {@code isOptimizedDrawingEnabled} 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} to the layout, * associating it * with the string specified by {@code name}. * * @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 * @return the preferred dimension for the container * * @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 * @return the minimum dimension for the container * * @see #preferredLayoutSize */ Dimension minimumLayoutSize(Container parent); /** * Lays out the specified container. * @param parent the container to be laid out */ void layoutContainer(Container parent); }