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verified gcc-4.6.4.tar.bz2.sig;
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1 files changed, 132 insertions, 0 deletions

diff --git a/libjava/classpath/javax/swing/plaf/basic/BasicPanelUI.java b/libjava/classpath/javax/swing/plaf/basic/BasicPanelUI.java
new file mode 100644
index 000000000..959462a78
--- /dev/null
+++ b/libjava/classpath/javax/swing/plaf/basic/BasicPanelUI.java
@@ -0,0 +1,132 @@
+/* BasicPanelUI.java
+   Copyright (C) 2002, 2004, 2006, Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.swing.plaf.basic;
+
+import javax.swing.JComponent;
+import javax.swing.JPanel;
+import javax.swing.LookAndFeel;
+import javax.swing.plaf.ComponentUI;
+import javax.swing.plaf.PanelUI;
+
+/**
+ * A UI delegate for the {@link JPanel} component.
+ */
+public class BasicPanelUI extends PanelUI
+{
+  /**
+   * A UI delegate that can be shared by all panels (because the delegate is
+   * stateless).
+   */
+  static BasicPanelUI sharedUI;
+
+  /**
+   * Returns a UI delegate for the specified component.
+   *
+   * @param panel  the panel.
+   */
+  public static ComponentUI createUI(JComponent panel)
+  {
+    if (sharedUI == null)
+      sharedUI = new BasicPanelUI();
+    return sharedUI;
+  }
+
+  /**
+   * Installs this UI delegate in the specified component.
+   *
+   * @param c  the component (should be a {@link JPanel}, <code>null</code> not
+   *     permitted).
+   */
+  public void installUI(JComponent c)
+  {
+    super.installUI(c);
+    if (c instanceof JPanel)
+      {
+        JPanel p = (JPanel) c;
+        installDefaults(p);
+      }
+  }
+
+  /**
+   * Installs the defaults for this UI delegate in the specified panel.
+   *
+   * @param p  the panel (<code>null</code> not permitted).
+   */
+  protected void installDefaults(JPanel p)
+  {
+    LookAndFeel.installColorsAndFont(p, "Panel.background", "Panel.foreground",
+                                     "Panel.font");
+
+    // A test against the reference implementation shows that this method will
+    // install a border if one is defined in the UIDefaults table (even though
+    // the BasicLookAndFeel doesn't actually define a "Panel.border").  This
+    // test was written after discovering that a null argument to
+    // uninstallDefaults throws a NullPointerException in
+    // LookAndFeel.uninstallBorder()...
+    LookAndFeel.installBorder(p, "Panel.border");
+  }
+
+  /**
+   * Uninstalls this UI delegate from the specified component.
+   *
+   * @param c the component (<code>null</code> not permitted).
+   */
+  public void uninstallUI(JComponent c)
+  {
+    uninstallDefaults((JPanel) c);
+  }
+
+  /**
+   * Uninstalls the UI defaults for the specified panel.
+   *
+   * @param p  the panel (<code>null</code> not permitted).
+   */
+  protected void uninstallDefaults(JPanel p)
+  {
+    // Tests on the reference implementation showed this method:
+    // (1) doesn't actually remove the installed colors and font installed
+    //     by installDefaults(), it isn't necessary;
+    // (2) throws a NullPointerException in LookAndFeel.uninstallBorder() if
+    //     p is null.  Strangely, no border is installed by the
+    //     BasicLookAndFeel - perhaps this is needed by another LAF?
+
+    LookAndFeel.uninstallBorder(p);
+  }
+
+}