Source Code Cross Referenced for BasicPanelUI.java in  » 6.0-JDK-Core » swing » javax » swing » plaf » basic » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Core » swing » javax.swing.plaf.basic 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001        /*
002         * Copyright 1998-2005 Sun Microsystems, Inc.  All Rights Reserved.
003         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004         *
005         * This code is free software; you can redistribute it and/or modify it
006         * under the terms of the GNU General Public License version 2 only, as
007         * published by the Free Software Foundation.  Sun designates this
008         * particular file as subject to the "Classpath" exception as provided
009         * by Sun in the LICENSE file that accompanied this code.
010         *
011         * This code is distributed in the hope that it will be useful, but WITHOUT
012         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014         * version 2 for more details (a copy is included in the LICENSE file that
015         * accompanied this code).
016         *
017         * You should have received a copy of the GNU General Public License version
018         * 2 along with this work; if not, write to the Free Software Foundation,
019         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020         *
021         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022         * CA 95054 USA or visit www.sun.com if you need additional information or
023         * have any questions.
024         */
025
026        package javax.swing.plaf.basic;
027
028        import java.awt.*;
029        import javax.swing.*;
030        import javax.swing.border.*;
031        import javax.swing.plaf.*;
032        import java.awt.*;
033        import java.awt.event.*;
034
035        /**
036         * BasicPanel implementation
037         *
038         * @version 1.19 05/05/07
039         * @author Steve Wilson
040         */
041        public class BasicPanelUI extends PanelUI {
042
043            // Shared UI object
044            private static PanelUI panelUI;
045
046            public static ComponentUI createUI(JComponent c) {
047                if (panelUI == null) {
048                    panelUI = new BasicPanelUI();
049                }
050                return panelUI;
051            }
052
053            public void installUI(JComponent c) {
054                JPanel p = (JPanel) c;
055                super .installUI(p);
056                installDefaults(p);
057            }
058
059            public void uninstallUI(JComponent c) {
060                JPanel p = (JPanel) c;
061                uninstallDefaults(p);
062                super .uninstallUI(c);
063            }
064
065            protected void installDefaults(JPanel p) {
066                LookAndFeel.installColorsAndFont(p, "Panel.background",
067                        "Panel.foreground", "Panel.font");
068                LookAndFeel.installBorder(p, "Panel.border");
069                LookAndFeel.installProperty(p, "opaque", Boolean.TRUE);
070            }
071
072            protected void uninstallDefaults(JPanel p) {
073                LookAndFeel.uninstallBorder(p);
074            }
075
076            /**
077             * Returns the baseline.
078             *
079             * @throws NullPointerException {@inheritDoc}
080             * @throws IllegalArgumentException {@inheritDoc}
081             * @see javax.swing.JComponent#getBaseline(int, int)
082             * @since 1.6
083             */
084            public int getBaseline(JComponent c, int width, int height) {
085                super .getBaseline(c, width, height);
086                Border border = c.getBorder();
087                if (border instanceof  AbstractBorder) {
088                    return ((AbstractBorder) border).getBaseline(c, width,
089                            height);
090                }
091                return -1;
092            }
093
094            /**
095             * Returns an enum indicating how the baseline of the component
096             * changes as the size changes.
097             *
098             * @throws NullPointerException {@inheritDoc}
099             * @see javax.swing.JComponent#getBaseline(int, int)
100             * @since 1.6
101             */
102            public Component.BaselineResizeBehavior getBaselineResizeBehavior(
103                    JComponent c) {
104                super .getBaselineResizeBehavior(c);
105                Border border = c.getBorder();
106                if (border instanceof  AbstractBorder) {
107                    return ((AbstractBorder) border)
108                            .getBaselineResizeBehavior(c);
109                }
110                return Component.BaselineResizeBehavior.OTHER;
111            }
112        }
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