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| 1 | /* | ||
| 2 | * Copyright (c) 1995, 2005, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.awt; | ||
| 26 | |||
| 27 | /** | ||
| 28 | * Defines the interface for classes that know how to lay out | ||
| 29 | * <code>Container</code>s. | ||
| 30 | * <p> | ||
| 31 | * Swing's painting architecture assumes the children of a | ||
| 32 | * <code>JComponent</code> do not overlap. If a | ||
| 33 | * <code>JComponent</code>'s <code>LayoutManager</code> allows | ||
| 34 | * children to overlap, the <code>JComponent</code> must override | ||
| 35 | * <code>isOptimizedDrawingEnabled</code> to return false. | ||
| 36 | * | ||
| 37 | * @see Container | ||
| 38 | * @see javax.swing.JComponent#isOptimizedDrawingEnabled | ||
| 39 | * | ||
| 40 | * @author Sami Shaio | ||
| 41 | * @author Arthur van Hoff | ||
| 42 | */ | ||
| 43 | public interface LayoutManager { | ||
| 44 | /** | ||
| 45 | * If the layout manager uses a per-component string, | ||
| 46 | * adds the component <code>comp</code> to the layout, | ||
| 47 | * associating it | ||
| 48 | * with the string specified by <code>name</code>. | ||
| 49 | * | ||
| 50 | * @param name the string to be associated with the component | ||
| 51 | * @param comp the component to be added | ||
| 52 | */ | ||
| 53 | void addLayoutComponent(String name, Component comp); | ||
| 54 | |||
| 55 | /** | ||
| 56 | * Removes the specified component from the layout. | ||
| 57 | * @param comp the component to be removed | ||
| 58 | */ | ||
| 59 | void removeLayoutComponent(Component comp); | ||
| 60 | |||
| 61 | /** | ||
| 62 | * Calculates the preferred size dimensions for the specified | ||
| 63 | * container, given the components it contains. | ||
| 64 | * @param parent the container to be laid out | ||
| 65 | * | ||
| 66 | * @see #minimumLayoutSize | ||
| 67 | */ | ||
| 68 | Dimension preferredLayoutSize(Container parent); | ||
| 69 | |||
| 70 | /** | ||
| 71 | * Calculates the minimum size dimensions for the specified | ||
| 72 | * container, given the components it contains. | ||
| 73 | * @param parent the component to be laid out | ||
| 74 | * @see #preferredLayoutSize | ||
| 75 | */ | ||
| 76 | Dimension minimumLayoutSize(Container parent); | ||
| 77 | |||
| 78 | /** | ||
| 79 | * Lays out the specified container. | ||
| 80 | * @param parent the container to be laid out | ||
| 81 | */ | ||
| 82 | void layoutContainer(Container parent); | ||
| 83 | } | ||