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| 1 | +/* | |
| 2 | + * Copyright (c) 1998, 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 | + | |
| 26 | +package javax.swing.plaf.basic; | |
| 27 | + | |
| 28 | +import java.awt.*; | |
| 29 | +import javax.swing.*; | |
| 30 | +import javax.swing.border.*; | |
| 31 | +import javax.swing.plaf.*; | |
| 32 | +import java.awt.*; | |
| 33 | +import java.awt.event.*; | |
| 34 | + | |
| 35 | + | |
| 36 | +/** | |
| 37 | + * BasicPanel implementation | |
| 38 | + * | |
| 39 | + * @author Steve Wilson | |
| 40 | + */ | |
| 41 | +public class BasicPanelUI extends PanelUI { | |
| 42 | + | |
| 43 | + // Shared UI object | |
| 44 | + private static PanelUI panelUI; | |
| 45 | + | |
| 46 | + public static ComponentUI createUI(JComponent c) { | |
| 47 | + if(panelUI == null) { | |
| 48 | + panelUI = new BasicPanelUI(); | |
| 49 | + } | |
| 50 | + return panelUI; | |
| 51 | + } | |
| 52 | + | |
| 53 | + public void installUI(JComponent c) { | |
| 54 | + JPanel p = (JPanel)c; | |
| 55 | + super.installUI(p); | |
| 56 | + installDefaults(p); | |
| 57 | + } | |
| 58 | + | |
| 59 | + public void uninstallUI(JComponent c) { | |
| 60 | + JPanel p = (JPanel)c; | |
| 61 | + uninstallDefaults(p); | |
| 62 | + super.uninstallUI(c); | |
| 63 | + } | |
| 64 | + | |
| 65 | + protected void installDefaults(JPanel p) { | |
| 66 | + LookAndFeel.installColorsAndFont(p, | |
| 67 | + "Panel.background", | |
| 68 | + "Panel.foreground", | |
| 69 | + "Panel.font"); | |
| 70 | + LookAndFeel.installBorder(p,"Panel.border"); | |
| 71 | + LookAndFeel.installProperty(p, "opaque", Boolean.TRUE); | |
| 72 | + } | |
| 73 | + | |
| 74 | + protected void uninstallDefaults(JPanel p) { | |
| 75 | + LookAndFeel.uninstallBorder(p); | |
| 76 | + } | |
| 77 | + | |
| 78 | + | |
| 79 | + /** | |
| 80 | + * Returns the baseline. | |
| 81 | + * | |
| 82 | + * @throws NullPointerException {@inheritDoc} | |
| 83 | + * @throws IllegalArgumentException {@inheritDoc} | |
| 84 | + * @see javax.swing.JComponent#getBaseline(int, int) | |
| 85 | + * @since 1.6 | |
| 86 | + */ | |
| 87 | + public int getBaseline(JComponent c, int width, int height) { | |
| 88 | + super.getBaseline(c, width, height); | |
| 89 | + Border border = c.getBorder(); | |
| 90 | + if (border instanceof AbstractBorder) { | |
| 91 | + return ((AbstractBorder)border).getBaseline(c, width, height); | |
| 92 | + } | |
| 93 | + return -1; | |
| 94 | + } | |
| 95 | + | |
| 96 | + /** | |
| 97 | + * Returns an enum indicating how the baseline of the component | |
| 98 | + * changes as the size changes. | |
| 99 | + * | |
| 100 | + * @throws NullPointerException {@inheritDoc} | |
| 101 | + * @see javax.swing.JComponent#getBaseline(int, int) | |
| 102 | + * @since 1.6 | |
| 103 | + */ | |
| 104 | + public Component.BaselineResizeBehavior getBaselineResizeBehavior( | |
| 105 | + JComponent c) { | |
| 106 | + super.getBaselineResizeBehavior(c); | |
| 107 | + Border border = c.getBorder(); | |
| 108 | + if (border instanceof AbstractBorder) { | |
| 109 | + return ((AbstractBorder)border).getBaselineResizeBehavior(c); | |
| 110 | + } | |
| 111 | + return Component.BaselineResizeBehavior.OTHER; | |
| 112 | + } | |
| 113 | +} | |