jdk/src/share/classes/javax/swing/plaf/basic/BasicPanelUI.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/javax/swing/plaf/basic/BasicPanelUI.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,113 @@
+/*
+ * Copyright 1998-2005 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package javax.swing.plaf.basic;
+
+import java.awt.*;
+import javax.swing.*;
+import javax.swing.border.*;
+import javax.swing.plaf.*;
+import java.awt.*;
+import java.awt.event.*;
+
+
+/**
+ * BasicPanel implementation
+ *
+ * @author Steve Wilson
+ */
+public class BasicPanelUI extends PanelUI {
+
+    // Shared UI object
+    private static PanelUI panelUI;
+
+    public static ComponentUI createUI(JComponent c) {
+        if(panelUI == null) {
+            panelUI = new BasicPanelUI();
+        }
+        return panelUI;
+    }
+
+    public void installUI(JComponent c) {
+        JPanel p = (JPanel)c;
+        super.installUI(p);
+        installDefaults(p);
+    }
+
+    public void uninstallUI(JComponent c) {
+        JPanel p = (JPanel)c;
+        uninstallDefaults(p);
+        super.uninstallUI(c);
+    }
+
+    protected void installDefaults(JPanel p) {
+        LookAndFeel.installColorsAndFont(p,
+                                         "Panel.background",
+                                         "Panel.foreground",
+                                         "Panel.font");
+        LookAndFeel.installBorder(p,"Panel.border");
+        LookAndFeel.installProperty(p, "opaque", Boolean.TRUE);
+    }
+
+    protected void uninstallDefaults(JPanel p) {
+        LookAndFeel.uninstallBorder(p);
+    }
+
+
+    /**
+     * Returns the baseline.
+     *
+     * @throws NullPointerException {@inheritDoc}
+     * @throws IllegalArgumentException {@inheritDoc}
+     * @see javax.swing.JComponent#getBaseline(int, int)
+     * @since 1.6
+     */
+    public int getBaseline(JComponent c, int width, int height) {
+        super.getBaseline(c, width, height);
+        Border border = c.getBorder();
+        if (border instanceof AbstractBorder) {
+            return ((AbstractBorder)border).getBaseline(c, width, height);
+        }
+        return -1;
+    }
+
+    /**
+     * Returns an enum indicating how the baseline of the component
+     * changes as the size changes.
+     *
+     * @throws NullPointerException {@inheritDoc}
+     * @see javax.swing.JComponent#getBaseline(int, int)
+     * @since 1.6
+     */
+    public Component.BaselineResizeBehavior getBaselineResizeBehavior(
+            JComponent c) {
+        super.getBaselineResizeBehavior(c);
+        Border border = c.getBorder();
+        if (border instanceof AbstractBorder) {
+            return ((AbstractBorder)border).getBaselineResizeBehavior(c);
+        }
+        return Component.BaselineResizeBehavior.OTHER;
+    }
+}