+++ /dev/null
-/* Choice.java -- Java choice button widget.
- Copyright (C) 1999, 2000, 2001, 2002 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., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 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.ChoicePeer;
-import java.awt.peer.ComponentPeer;
-import java.awt.event.ItemEvent;
-import java.awt.event.ItemListener;
-import java.io.Serializable;
-import java.util.Vector;
-
-/**
- * This class implements a drop down choice list.
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- */
-public class Choice extends Component implements ItemSelectable, Serializable
-{
-
-/*
- * Static Variables
- */
-
-// Serialization constant
-private static final long serialVersionUID = -4075310674757313071L;
-
-/*************************************************************************/
-
-/*
- * Instance Variables
- */
-
-/**
- * @serial A list of items for the choice box, which can be <code>null</code>.
- */
-private Vector pItems = new Vector();
-
-/**
- * @serial The index of the selected item in the choice box.
- */
-private int selectedIndex = -1;
-
-// Listener chain
-private ItemListener item_listeners;
-
-/*************************************************************************/
-
-/*
- * Constructors
- */
-
-/**
- * Initializes a new instance of <code>Choice</code>.
- */
-public
-Choice()
-{
-}
-
-/*************************************************************************/
-
-/*
- * Instance Methods
- */
-
-/**
- * Returns the number of items in the list.
- *
- * @return The number of items in the list.
- */
-public int
-getItemCount()
-{
- return(pItems.size());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the number of items in the list.
- *
- * @return The number of items in the list.
- *
- * @deprecated This method is deprecated in favor of <code>getItemCount</code>.
- */
-public int
-countItems()
-{
- return(pItems.size());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the item at the specified index in the list.
- *
- * @param index The index into the list to return the item from.
- *
- * @exception ArrayIndexOutOfBoundsException If the index is invalid.
- */
-public String
-getItem(int index)
-{
- return((String)pItems.elementAt(index));
-}
-
-/*************************************************************************/
-
-/**
- * Adds the specified item to this choice box.
- *
- * @param item The item to add.
- */
-public synchronized void
-add(String item)
-{
- if (item == null)
- throw new IllegalArgumentException ("item must be non-null");
-
- pItems.addElement(item);
-
- int i = pItems.size () - 1;
- if (peer != null)
- {
- ChoicePeer cp = (ChoicePeer) peer;
- cp.add (item, i);
- }
-
- if (i == 0)
- select (0);
-}
-
-/*************************************************************************/
-
-/**
- * Adds the specified item to this choice box.
- *
- * @param item The item to add.
- */
-public synchronized void
-addItem(String item)
-{
- add(item);
-}
-
-/*************************************************************************/
-
-/** Inserts an item into this Choice. Existing items are shifted
- * upwards. If the new item is the only item, then it is selected.
- * If the currently selected item is shifted, then the first item is
- * selected. If the currently selected item is not shifted, then it
- * remains selected.
- *
- * @param item The item to add.
- * @param index The index at which the item should be inserted.
- */
-public synchronized void
-insert(String item, int index)
-{
- if (index > getItemCount ())
- index = getItemCount ();
-
- pItems.insertElementAt(item, index);
-
- if (peer != null)
- {
- ChoicePeer cp = (ChoicePeer) peer;
- cp.add (item, index);
- }
-
- if (getItemCount () == 1 || selectedIndex >= index)
- select (0);
-}
-
-/*************************************************************************/
-
-/**
- * Removes the specified item from the choice box.
- *
- * @param item The item to remove.
- *
- * @param IllegalArgumentException If the specified item doesn't exist.
- */
-public synchronized void
-remove(String item)
-{
- int index = pItems.indexOf(item);
- if (index == -1)
- throw new IllegalArgumentException ("item \""
- + item + "\" not found in Choice");
- remove(index);
-}
-
-/*************************************************************************/
-
-/**
- * Removes the item at the specified index from the choice box.
- *
- * @param index The index of the item to remove.
- *
- * @exception ArrayIndexOutOfBoundException If the index is not valid.
- */
-public synchronized void
-remove(int index)
-{
- pItems.removeElementAt(index);
-
- if (peer != null)
- {
- ChoicePeer cp = (ChoicePeer) peer;
- cp.remove (index);
- }
-
- if (index == selectedIndex)
- select (0);
- else if (selectedIndex > index)
- --selectedIndex;
-}
-
-/*************************************************************************/
-
-/**
- * Removes all of the objects from this choice box.
- */
-public synchronized void
-removeAll()
-{
- int count = getItemCount();
-
- for (int i = 0; i < count; i++)
- {
- // Always remove 0.
- remove(0);
- }
-}
-
-/*************************************************************************/
-
-/**
- * Returns the currently selected item, or null if no item is
- * selected.
- *
- * @return The currently selected item.
- */
-public synchronized String
-getSelectedItem()
-{
- return (selectedIndex == -1
- ? null
- : ((String)pItems.elementAt(selectedIndex)));
-}
-
-/*************************************************************************/
-
-/**
- * Returns an array with one row containing the selected item.
- *
- * @return An array containing the selected item.
- */
-public synchronized Object[]
-getSelectedObjects()
-{
- if (selectedIndex == -1)
- return null;
-
- Object[] objs = new Object[1];
- objs[0] = pItems.elementAt(selectedIndex);
-
- return(objs);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the index of the selected item.
- *
- * @return The index of the selected item.
- */
-public int
-getSelectedIndex()
-{
- return(selectedIndex);
-}
-
-/*************************************************************************/
-
-/**
- * Forces the item at the specified index to be selected.
- *
- * @param index The index of the row to make selected.
- *
- * @param IllegalArgumentException If the specified index is invalid.
- */
-public synchronized void
-select(int index)
-{
- if ((index < 0) || (index > getItemCount()))
- throw new IllegalArgumentException("Bad index: " + index);
-
- this.selectedIndex = index;
- if (peer != null)
- {
- ChoicePeer cp = (ChoicePeer) peer;
- cp.select (index);
- }
-}
-
-/*************************************************************************/
-
-/**
- * Forces the named item to be selected.
- *
- * @param item The item to be selected.
- *
- * @exception IllegalArgumentException If the specified item does not exist.
- */
-public synchronized void
-select(String item)
-{
- int index = pItems.indexOf(item);
- if (index >= 0)
- select(index);
-}
-
-/*************************************************************************/
-
-/**
- * Creates the native peer for this object.
- */
-public void
-addNotify()
-{
- if (peer == null)
- peer = getToolkit ().createChoice (this);
- super.addNotify ();
-}
-
-/*************************************************************************/
-
-/**
- * Adds the specified listener to the list of registered listeners for
- * this object.
- *
- * @param listener The listener to add.
- */
-public synchronized void
-addItemListener(ItemListener listener)
-{
- item_listeners = AWTEventMulticaster.add(item_listeners, listener);
-}
-
-/*************************************************************************/
-
-/**
- * Removes the specified listener from the list of registered listeners for
- * this object.
- *
- * @param listener The listener to remove.
- */
-public synchronized void
-removeItemListener(ItemListener listener)
-{
- item_listeners = AWTEventMulticaster.remove(item_listeners, listener);
-}
-
-/*************************************************************************/
-
-/**
- * Processes this event by invoking <code>processItemEvent()</code> if the
- * event is an instance of <code>ItemEvent</code>, otherwise the event
- * is passed to the superclass.
- *
- * @param event The event to process.
- */
-protected void
-processEvent(AWTEvent event)
-{
- if (event instanceof ItemEvent)
- processItemEvent((ItemEvent)event);
- else
- super.processEvent(event);
-}
-
-/*************************************************************************/
-
-/**
- * Processes item event by dispatching to any registered listeners.
- *
- * @param event The event to process.
- */
-protected void
-processItemEvent(ItemEvent event)
-{
- if (item_listeners != null)
- item_listeners.itemStateChanged(event);
-}
-
-/*************************************************************************/
-
-/**
- * Returns a debugging string for this object.
- *
- * @return A debugging string for this object.
- */
-protected String
-paramString()
-{
- return ("selectedIndex=" + selectedIndex + "," + super.paramString());
-}
-
-} // class Choice
projects / msp430-gcc.git / blobdiff