1 /* 2 * Copyright (c) 1998, 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 26 package javax.swing.colorchooser; 27 28 import java.awt.*; 29 import java.io.*; 30 31 32 /** 33 * Center-positioning layout manager. 34 * @author Tom Santos 35 * @author Steve Wilson 36 */ 37 class CenterLayout implements LayoutManager, Serializable { 38 public void addLayoutComponent(String name, Component comp) { } 39 public void removeLayoutComponent(Component comp) { } 40 41 public Dimension preferredLayoutSize( Container container ) { 42 Component c = container.getComponent( 0 ); 43 if ( c != null ) { 44 Dimension size = c.getPreferredSize(); 45 Insets insets = container.getInsets(); 46 size.width += insets.left + insets.right; 47 size.height += insets.top + insets.bottom; 48 return size; 49 } 50 else { 51 return new Dimension( 0, 0 ); 52 } 53 } 54 55 public Dimension minimumLayoutSize(Container cont) { 56 return preferredLayoutSize(cont); 57 } 58 59 public void layoutContainer(Container container) { 60 try { 61 Component c = container.getComponent( 0 ); 62 63 c.setSize( c.getPreferredSize() ); 64 Dimension size = c.getSize(); 65 Dimension containerSize = container.getSize(); 66 Insets containerInsets = container.getInsets(); 67 containerSize.width -= containerInsets.left + containerInsets.right; 68 containerSize.height -= containerInsets.top + containerInsets.bottom; 69 int componentLeft = (containerSize.width / 2) - (size.width / 2); 70 int componentTop = (containerSize.height / 2) - (size.height / 2); 71 componentLeft += containerInsets.left; 72 componentTop += containerInsets.top; 73 74 c.setBounds( componentLeft, componentTop, size.width, size.height ); 75 } 76 catch( Exception e ) { 77 } 78 } 79 }