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1 files changed, 444 insertions, 0 deletions

diff --git a/libjava/classpath/java/awt/Menu.java b/libjava/classpath/java/awt/Menu.java
new file mode 100644
index 000000000..c640b5e85
--- /dev/null
+++ b/libjava/classpath/java/awt/Menu.java
@@ -0,0 +1,444 @@
+/* Menu.java -- A Java AWT Menu
+   Copyright (C) 1999, 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 java.awt;
+
+import java.awt.peer.MenuPeer;
+import java.io.Serializable;
+import java.util.Enumeration;
+import java.util.Vector;
+
+import javax.accessibility.AccessibleContext;
+import javax.accessibility.AccessibleRole;
+
+/**
+  * This class represents a pull down or tear off menu in Java's AWT.
+  *
+  * @author Aaron M. Renn (arenn@urbanophile.com)
+  */
+public class Menu extends MenuItem implements MenuContainer, Serializable
+{
+
+  /**
+   * The number used to generate the name returned by getName.
+   */
+  private static transient long next_menu_number;
+
+  // Serialization Constant
+  private static final long serialVersionUID = -8809584163345499784L;
+
+  /**
+    * @serial The actual items in the menu
+    */
+  private Vector items = new Vector();
+
+  /**
+   * @serial Flag indicating whether or not this menu is a tear off
+   */
+  private boolean tearOff;
+
+  /**
+   * @serial Indicates whether or not this is a help menu.
+   */
+  private boolean isHelpMenu;
+
+  /*
+   * @serial Unused in this implementation, but present in Sun's
+   * serialization spec.  Value obtained via reflection.
+   */
+  private int menuSerializedDataVersion = 1;
+
+  static final transient String separatorLabel = "-";
+
+  /**
+   * Initializes a new instance of <code>Menu</code> with no label and that
+   * is not a tearoff;
+   *
+   * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
+   */
+  public Menu()
+  {
+  }
+
+  /**
+   * Initializes a new instance of <code>Menu</code> that is not a tearoff and
+   * that has the specified label.
+   *
+   * @param label The menu label.
+   *
+   * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
+   */
+  public Menu(String label)
+  {
+    this(label, false);
+  }
+
+  /**
+   * Initializes a new instance of <code>Menu</code> with the specified
+   * label and tearoff status.
+   *
+   * @param label The label for this menu
+   * @param isTearOff <code>true</code> if this menu is a tear off menu,
+   * <code>false</code> otherwise.
+   *
+   * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true.
+   */
+  public Menu(String label, boolean isTearOff)
+  {
+    super(label);
+
+    tearOff = isTearOff;
+
+    if (label.equals("Help"))
+      isHelpMenu = true;
+
+    if (GraphicsEnvironment.isHeadless())
+      throw new HeadlessException();
+  }
+
+  /**
+   * Tests whether or not this menu is a tearoff.
+   *
+   * @return <code>true</code> if this menu is a tearoff, <code>false</code>
+   * otherwise.
+   */
+  public boolean isTearOff()
+  {
+    return(tearOff);
+  }
+
+  /**
+   * Returns the number of items in this menu.
+   *
+   * @return The number of items in this menu.
+   */
+  public int getItemCount()
+  {
+    return countItems();
+  }
+
+  /**
+   * Returns the number of items in this menu.
+   *
+   * @return The number of items in this menu.
+   *
+   * @deprecated As of JDK 1.1, replaced by getItemCount().
+   */
+  public int countItems()
+  {
+    return items.size();
+  }
+
+  /**
+   * Returns the item at the specified index.
+   *
+   * @param index  the item index.
+   *
+   * @return The item at the specified index.
+   *
+   * @exception ArrayIndexOutOfBoundsException If the index value is not valid.
+   */
+  public MenuItem getItem(int index)
+  {
+    return((MenuItem) items.elementAt(index));
+  }
+
+  /**
+   * Adds the specified item to this menu.  If it was previously part of
+   * another menu, it is first removed from that menu.
+   *
+   * @param item The new item to add.
+   *
+   * @return The item that was added.
+   */
+  public MenuItem add(MenuItem item)
+  {
+    MenuContainer parent = item.getParent();
+    if (parent != null)
+      parent.remove(item);
+
+    items.addElement(item);
+    item.setParent(this);
+
+    if (peer != null)
+      {
+        item.addNotify();
+        MenuPeer mp = (MenuPeer) peer;
+        mp.addItem(item);
+      }
+
+    return item;
+  }
+
+  /**
+   * Add an item with the specified label to this menu.
+   *
+   * @param label The label of the menu item to add.
+   */
+  public void add(String label)
+  {
+    add(new MenuItem(label));
+  }
+
+  /**
+   * Inserts the specified menu item into this menu at the specified index.  If
+   * the index is greater than or equal to the number of items already in the
+   * menu, the new item is added as the last item in the menu.
+   *
+   * @param item The menu item to add (<code>null</code> not permitted).
+   * @param index The index of the menu item (>= 0).
+   *
+   * @throws IllegalArgumentException if the index is less than zero.
+   * @throws NullPointerException if <code>item</code> is <code>null</code>.
+   */
+  public void insert(MenuItem item, int index)
+  {
+    if (index < 0)
+      throw new IllegalArgumentException("Index is less than zero");
+
+    int count = getItemCount();
+
+    if (index >= count)
+      add(item);
+    else
+      {
+        MenuContainer parent = item.getParent();
+        if (parent != null)
+          parent.remove(item);
+
+        items.insertElementAt(item, index);
+        item.setParent(this);
+
+        MenuPeer peer = (MenuPeer) getPeer();
+        if (peer == null)
+          return;
+
+        for (int i = count - 1; i >= index; i--)
+          peer.delItem(i);
+
+        item.addNotify();
+        peer.addItem(item);
+
+        // bear in mind that count is the number of items *before* the new
+        // item was added
+        for (int i = index + 1; i <= count; i++)
+          peer.addItem((MenuItem) items.elementAt(i));
+      }
+
+  }
+
+  /**
+   * Inserts an item with the specified label into this menu at the specified
+   * index.  If the index is greater than or equal to the number of items
+   * already in the menu, the new item is added as the last item in the menu.
+   *
+   * @param label The label of the item to add.
+   * @param index The index of the menu item (>= 0).
+   *
+   * @throws IllegalArgumentException If the index is less than zero.
+   */
+  public void insert(String label, int index)
+  {
+    insert(new MenuItem(label), index);
+  }
+
+  /**
+   * Adds a separator bar at the current menu location.
+   */
+  public void addSeparator()
+  {
+    add(new MenuItem(separatorLabel));
+  }
+
+  /**
+   * Inserts a separator bar at the specified index value.
+   *
+   * @param index The index at which to insert a separator bar.
+   *
+   * @exception IllegalArgumentException If the index is less than zero.
+   * @exception ArrayIndexOutOfBoundsException If the index is otherwise invalid.
+   */
+  public void insertSeparator(int index)
+  {
+    insert(new MenuItem(separatorLabel), index);
+  }
+
+  /**
+   * Deletes the item at the specified index from this menu.
+   *
+   * @param index The index of the item to remove.
+   *
+   * @exception ArrayIndexOutOfBoundsException If the index is otherwise invalid.
+   */
+  public synchronized void remove(int index)
+  {
+    MenuItem item = (MenuItem) items.remove(index);
+
+    MenuPeer mp = (MenuPeer) getPeer();
+    if (mp != null)
+      {
+        mp.delItem(index);
+        item.removeNotify();
+      }
+    item.setParent(null);
+  }
+
+  /**
+   * Removes the specifed item from the menu.  If the specified component
+   * does not exist, this method does nothing.
+   *
+   * @param item The component to remove.
+   */
+  public void remove(MenuComponent item)
+  {
+    int index = items.indexOf(item);
+    if (index == -1)
+      return;
+
+    remove(index);
+  }
+
+  /**
+   * Removes all the elements from this menu.
+   */
+  public synchronized void removeAll()
+  {
+    int count = getItemCount();
+    for(int i = 0; i < count; i++)
+      {
+        // We must always remove item 0.
+        remove(0);
+      }
+  }
+
+  /**
+   * Creates the native peer for this object.
+   */
+  public void addNotify()
+  {
+    MenuPeer peer = (MenuPeer) getPeer();
+    if (peer == null)
+      {
+        peer = getToolkit().createMenu(this);
+        setPeer(peer);
+      }
+
+    Enumeration e = items.elements();
+    while (e.hasMoreElements())
+    {
+      MenuItem mi = (MenuItem)e.nextElement();
+      mi.addNotify();
+      peer.addItem(mi);
+    }
+
+    super.addNotify();
+  }
+
+  /**
+   * Destroys the native peer for this object.
+   */
+  public void removeNotify()
+  {
+    Enumeration e = items.elements();
+    while (e.hasMoreElements())
+    {
+      MenuItem mi = (MenuItem) e.nextElement();
+      mi.removeNotify();
+    }
+    super.removeNotify();
+  }
+
+  /**
+   * Returns a debugging string for this menu.
+   *
+   * @return A debugging string for this menu.
+   */
+  public String paramString()
+  {
+    return (",tearOff=" + tearOff + ",isHelpMenu=" + isHelpMenu
+            + super.paramString());
+  }
+
+  /**
+   * Basic Accessibility class for Menu.  Details get provided in derived
+   * classes.
+   */
+  protected class AccessibleAWTMenu extends AccessibleAWTMenuItem
+  {
+    private static final long serialVersionUID = 5228160894980069094L;
+
+    protected AccessibleAWTMenu()
+    {
+    }
+
+    public AccessibleRole getAccessibleRole()
+    {
+      return AccessibleRole.MENU;
+    }
+  }
+
+  /**
+   * Gets the AccessibleContext associated with this <code>Menu</code>.
+   * The context is created, if necessary.
+   *
+   * @return the associated context
+   */
+  public AccessibleContext getAccessibleContext()
+  {
+    /* Create the context if this is the first request */
+    if (accessibleContext == null)
+      accessibleContext = new AccessibleAWTMenu();
+    return accessibleContext;
+  }
+
+  /**
+   * Generate a unique name for this <code>Menu</code>.
+   *
+   * @return A unique name for this <code>Menu</code>.
+   */
+  String generateName()
+  {
+    return "menu" + getUniqueLong();
+  }
+
+  private static synchronized long getUniqueLong()
+  {
+    return next_menu_number++;
+  }
+
+} // class Menu