+++ /dev/null
-/* List.java -- A listbox widget
- Copyright (C) 1999, 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.io.Serializable;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.ItemEvent;
-import java.awt.event.ItemListener;
-import java.awt.peer.ListPeer;
-import java.awt.peer.ComponentPeer;
-import java.util.Vector;
-
-/**
- * Class that implements a listbox widget
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- */
-public class List extends Component implements ItemSelectable, Serializable
-{
-
-/*
- * Static Variables
- */
-
-// Serialization constant
-private static final long serialVersionUID = -3304312411574666869L;
-
-/*************************************************************************/
-
-/*
- * Instance Variables
- */
-
-// FIXME: Need read/writeObject
-
-/**
- * @serial The items in the list.
- */
-private Vector items = new Vector();
-
-/**
- * @serial Indicates whether or not multiple items can be selected
- * simultaneously.
- */
-private boolean multipleMode;
-
-/**
- * @serial The number of rows in the list. This is set on creation
- * only and cannot be modified.
- */
-private int rows;
-
-/**
- * @serial An array of the item indices that are selected.
- */
-private int[] selected;
-
-/**
- * @serial An index value used by <code>makeVisible()</code> and
- * <code>getVisibleIndex</code>.
- */
-private int visibleIndex;
-
-// The list of ItemListeners for this object.
-private ItemListener item_listeners;
-
-// The list of ActionListeners for this object.
-private ActionListener action_listeners;
-
-/*************************************************************************/
-
-/*
- * Constructors
- */
-
-/**
- * Initializes a new instance of <code>List</code> with no visible lines
- * and multi-select disabled.
- */
-public
-List()
-{
- this(4, false);
-}
-
-/*************************************************************************/
-
-/**
- * Initializes a new instance of <code>List</code> with the specified
- * number of visible lines and multi-select disabled.
- *
- * @param lines The number of visible lines in the list.
- */
-public
-List(int rows)
-{
- this(rows, false);
-}
-
-/*************************************************************************/
-
-/**
- * Initializes a new instance of <code>List</code> with the specified
- * number of lines and the specified multi-select setting.
- *
- * @param lines The number of visible lines in the list.
- * @param multipleMode <code>true</code> if multiple lines can be selected
- * simultaneously, <code>false</code> otherwise.
- */
-public
-List(int rows, boolean multipleMode)
-{
- this.rows = rows;
- this.multipleMode = multipleMode;
-}
-
-/*************************************************************************/
-
-/*
- * Instance Variables
- */
-
-/**
- * Returns the number of items in this list.
- *
- * @return The number of items in this list.
- */
-public int
-getItemCount()
-{
- return(items.size());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the number of items in this list.
- *
- * @return The number of items in this list.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getItemCount()</code>
- */
-public int
-countItems()
-{
- return(getItemCount());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the complete list of items.
- *
- * @return The complete list of items in the list.
- */
-public synchronized String[]
-getItems()
-{
- String[] l_items = new String[getItemCount()];
-
- items.copyInto(l_items);
- return(l_items);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the item at the specified index.
- *
- * @param index The index of the item to retrieve.
- *
- * @exception IndexOutOfBoundsException If the index value is not valid.
- */
-public String
-getItem(int index)
-{
- return((String)items.elementAt(index));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the number of visible rows in the list.
- *
- * @return The number of visible rows in the list.
- */
-public int
-getRows()
-{
- return(rows);
-}
-
-/*************************************************************************/
-
-/**
- * Tests whether or not multi-select mode is enabled.
- *
- * @return <code>true</code> if multi-select mode is enabled,
- * <code>false</code> otherwise.
- */
-public boolean
-isMultipleMode()
-{
- return(multipleMode);
-}
-
-/*************************************************************************/
-
-/**
- * Tests whether or not multi-select mode is enabled.
- *
- * @return <code>true</code> if multi-select mode is enabled,
- * <code>false</code> otherwise.
- *
- * @deprecated This method is deprecated in favor of
- * <code>isMultipleMode()</code>.
- */
-public boolean
-allowsMultipleSelections()
-{
- return(multipleMode);
-}
-
-/*************************************************************************/
-
-/**
- * This method enables or disables multiple selection mode for this
- * list.
- *
- * @param multipleMode <code>true</code> to enable multiple mode,
- * <code>false</code> otherwise.
- */
-public void
-setMultipleMode(boolean multipleMode)
-{
- this.multipleMode = multipleMode;
- if (peer != null)
- {
- ListPeer l = (ListPeer) peer;
- l.setMultipleMode (multipleMode);
- }
-}
-
-/*************************************************************************/
-
-/**
- * This method enables or disables multiple selection mode for this
- * list.
- *
- * @param multipleMode <code>true</code> to enable multiple mode,
- * <code>false</code> otherwise.
- */
-public void
-setMultipleSelections(boolean multipleMode)
-{
- setMultipleMode(multipleMode);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the minimum size of this component.
- *
- * @return The minimum size of this component.
- */
-public Dimension
-getMinimumSize()
-{
- return(getMinimumSize(rows));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the minimum size of this component.
- *
- * @return The minimum size of this component.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getMinimumSize</code>.
- */
-public Dimension
-minimumSize()
-{
- return(getMinimumSize(rows));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the minimum size of this component assuming it had the specified
- * number of rows.
- *
- * @param rows The number of rows to size for.
- *
- * @return The minimum size of this component.
- */
-public Dimension
-getMinimumSize(int rows)
-{
- ListPeer lp = (ListPeer)getPeer();
- if (lp != null)
- return(lp.minimumSize(rows));
- else
- return(new Dimension(0,0));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the minimum size of this component assuming it had the specified
- * number of rows.
- *
- * @param rows The number of rows to size for.
- *
- * @return The minimum size of this component.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getMinimumSize(int)</code>>
- */
-public Dimension
-minimumSize(int rows)
-{
- return(getMinimumSize(rows));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the preferred size of this component.
- *
- * @return The preferred size of this component.
- */
-public Dimension
-getPreferredSize()
-{
- return(getPreferredSize(rows));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the preferred size of this component.
- *
- * @return The preferred size of this component.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getPreferredSize</code>.
- */
-public Dimension
-preferredSize()
-{
- return(getPreferredSize(rows));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the preferred size of this component assuming it had the specified
- * number of rows.
- *
- * @param rows The number of rows to size for.
- *
- * @return The preferred size of this component.
- */
-public Dimension
-getPreferredSize(int rows)
-{
- ListPeer lp = (ListPeer)getPeer();
- if (lp != null)
- return(lp.preferredSize(rows));
- else
- return(new Dimension(0,0));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the preferred size of this component assuming it had the specified
- * number of rows.
- *
- * @param rows The number of rows to size for.
- *
- * @return The preferred size of this component.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getPreferredSize(int)</code>>
- */
-public Dimension
-preferredSize(int rows)
-{
- return(getPreferredSize(rows));
-}
-
-/*************************************************************************/
-
-/**
- * This method adds the specified item to the end of the list.
- *
- * @param item The item to add to the list.
- */
-public void
-add(String item)
-{
- add(item, -1);
-}
-
-/*************************************************************************/
-
-/**
- * This method adds the specified item to the end of the list.
- *
- * @param item The item to add to the list.
- *
- * @deprecated Use add() instead.
- */
-public void
-addItem(String item)
-{
- addItem(item, -1);
-}
-
-/*************************************************************************/
-
-/**
- * Adds the specified item to the specified location in the list.
- * If the desired index is -1 or greater than the number of rows
- * in the list, then the item is added to the end.
- *
- * @param item The item to add to the list.
- * @param index The location in the list to add the item, or -1 to add
- * to the end.
- */
-public void
-add(String item, int index)
-{
- if ((index == -1) || (index >= items.size()))
- items.addElement(item);
- else
- items.insertElementAt(item, index);
-
- if (peer != null)
- {
- ListPeer l = (ListPeer) peer;
- l.add (item, index);
- }
-}
-
-/*************************************************************************/
-
-/**
- * Adds the specified item to the specified location in the list.
- * If the desired index is -1 or greater than the number of rows
- * in the list, then the item is added to the end.
- *
- * @param item The item to add to the list.
- * @param index The location in the list to add the item, or -1 to add
- * to the end.
- *
- * @deprecated Use add() instead.
- */
-public void
-addItem(String item, int index)
-{
- add(item, index);
-}
-
-/*************************************************************************/
-
-/**
- * Deletes the item at the specified index.
- *
- * @param index The index of the item to delete.
- *
- * @exception IllegalArgumentException If the index is not valid
- */
-public void
-delItem(int index) throws IllegalArgumentException
-{
- remove(index);
-}
-
-/*************************************************************************/
-
-/**
- * Deletes the item at the specified index.
- *
- * @param index The index of the item to delete.
- *
- * @exception IllegalArgumentException If the index is not valid
- */
-public void
-remove(int index) throws IllegalArgumentException
-{
- items.removeElementAt (index);
- if (peer != null)
- {
- ListPeer l = (ListPeer) peer;
- l.delItems (index, index);
- }
-}
-
-/*************************************************************************/
-
-/**
- * Deletes all items in the specified index range.
- *
- * @param start The beginning index of the range to delete.
- * @param end The ending index of the range to delete.
- *
- * @exception IllegalArgumentException If the indexes are not valid
- *
- * @deprecated This method is deprecated for some unknown reason.
- */
-public synchronized void
-delItems(int start, int end) throws IllegalArgumentException
-{
- if ((start < 0) || (start >= items.size()))
- throw new IllegalArgumentException("Bad list start index value: " + start);
-
- if ((start < 0) || (start >= items.size()))
- throw new IllegalArgumentException("Bad list start index value: " + start);
-
- if (start > end)
- throw new IllegalArgumentException("Start is greater than end!");
-
- // We must run the loop in reverse direction.
- for (int i = end; i >= start; --i)
- items.removeElementAt (i);
- if (peer != null)
- {
- ListPeer l = (ListPeer) peer;
- l.delItems (start, end);
- }
-}
-
-/*************************************************************************/
-
-/**
- * Deletes the first occurrence of the specified item from the list.
- *
- * @param item The item to delete.
- *
- * @exception IllegalArgumentException If the specified item does not exist.
- */
-public synchronized void
-remove(String item) throws IllegalArgumentException
-{
- int index = items.indexOf(item);
- if (index == -1)
- throw new IllegalArgumentException("List element to delete not found");
-
- remove(index);
-}
-
-/*************************************************************************/
-
-/**
- * Deletes all of the items from the list.
- */
-public synchronized void
-removeAll()
-{
- items.clear();
- if (peer != null)
- {
- ListPeer l = (ListPeer) peer;
- l.removeAll ();
- }
-}
-
-/*************************************************************************/
-
-/**
- * Deletes all of the items from the list.
- *
- * @deprecated This method is deprecated in favor of <code>removeAll()</code>.
- */
-public void
-clear()
-{
- removeAll();
-}
-
-/*************************************************************************/
-
-/**
- * Replaces the item at the specified index with the specified item.
- *
- * @param item The new item value.
- * @param index The index of the item to replace.
- *
- * @exception IllegalArgumentException If the index is not valid.
- */
-public synchronized void
-replaceItem(String item, int index) throws IllegalArgumentException
-{
- remove(index);
- addItem(item, index);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the index of the currently selected item. -1 will be returned
- * if there are no selected rows or if there are multiple selected rows.
- *
- * @return The index of the selected row.
- */
-public synchronized int
-getSelectedIndex()
-{
- if (peer != null)
- {
- ListPeer l = (ListPeer) peer;
- selected = l.getSelectedIndexes ();
- }
-
- if (selected == null || selected.length > 1)
- return -1;
- return selected[0];
-}
-
-/*************************************************************************/
-
-/**
- * Returns an array containing the indexes of the rows that are
- * currently selected.
- *
- * @return A list of indexes of selected rows.
- */
-public synchronized int[]
-getSelectedIndexes()
-{
- if (peer != null)
- {
- ListPeer l = (ListPeer) peer;
- selected = l.getSelectedIndexes ();
- }
- return selected;
-}
-
-/*************************************************************************/
-
-/**
- * Returns the item that is currently selected, or <code>null</code> if there
- * is no item selected. FIXME: What happens if multiple items selected?
- *
- * @return The selected item, or <code>null</code> if there is no
- * selected item.
- */
-public synchronized String
-getSelectedItem()
-{
- int index = getSelectedIndex();
- if (index == -1)
- return(null);
-
- return((String)items.elementAt(index));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the list of items that are currently selected in this list.
- *
- * @return The list of currently selected items.
- */
-public synchronized String[]
-getSelectedItems()
-{
- int[] indexes = getSelectedIndexes();
- if (indexes == null)
- return(new String[0]);
-
- String[] retvals = new String[indexes.length];
- if (retvals.length > 0)
- for (int i = 0 ; i < retvals.length; i++)
- retvals[i] = (String)items.elementAt(indexes[i]);
-
- return(retvals);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the list of items that are currently selected in this list as
- * an array of type <code>Object[]</code> instead of <code>String[]</code>.
- *
- * @return The list of currently selected items.
- */
-public synchronized Object[]
-getSelectedObjects()
-{
- int[] indexes = getSelectedIndexes();
- if (indexes == null)
- return(new Object[0]);
-
- Object[] retvals = new Object[indexes.length];
- if (retvals.length > 0)
- for (int i = 0 ; i < retvals.length; i++)
- retvals[i] = items.elementAt(indexes[i]);
-
- return(retvals);
-}
-
-/*************************************************************************/
-
-/**
- * Tests whether or not the specified index is selected.
- *
- * @param index The index to test.
- *
- * @return <code>true</code> if the index is selected, <code>false</code>
- * otherwise.
- */
-public boolean
-isIndexSelected(int index)
-{
- int[] indexes = getSelectedIndexes();
-
- for (int i = 0; i < indexes.length; i++)
- if (indexes[i] == index)
- return(true);
-
- return(false);
-}
-
-/*************************************************************************/
-
-/**
- * Tests whether or not the specified index is selected.
- *
- * @param index The index to test.
- *
- * @return <code>true</code> if the index is selected, <code>false</code>
- * otherwise.
- *
- * @deprecated This method is deprecated in favor of
- * <code>isIndexSelected(int)</code>.
- */
-public boolean
-isSelected(int index)
-{
- return(isIndexSelected(index));
-}
-
-/*************************************************************************/
-
-/**
- * This method ensures that the item at the specified index is visible.
- *
- * @exception IllegalArgumentException If the specified index is out of
- * range.
- */
-public synchronized void
-makeVisible(int index) throws IllegalArgumentException
-{
- if ((index < 0) || (index >= items.size()))
- throw new IllegalArgumentException("Bad list index: " + index);
-
- visibleIndex = index;
- if (peer != null)
- {
- ListPeer l = (ListPeer) peer;
- l.makeVisible (index);
- }
-}
-
-/*************************************************************************/
-
-/**
- * Returns the index of the last item that was made visible via the
- * <code>makeVisible()</code> method.
- *
- * @return The index of the last item made visible via the
- * <code>makeVisible()</code> method.
- */
-public int
-getVisibleIndex()
-{
- return(visibleIndex);
-}
-
-/*************************************************************************/
-
-/**
- * Makes the item at the specified index selected.
- *
- * @param index The index of the item to select.
- */
-public synchronized void
-select(int index)
-{
- ListPeer lp = (ListPeer)getPeer();
- if (lp != null)
- lp.select(index);
-}
-
-/*************************************************************************/
-
-/**
- * Makes the item at the specified index not selected.
- *
- * @param index The index of the item to unselect.
- */
-public synchronized void
-deselect(int index)
-{
- ListPeer lp = (ListPeer)getPeer();
- if (lp != null)
- lp.deselect(index);
-}
-
-/*************************************************************************/
-
-/**
- * Notifies this object to create its native peer.
- */
-public void
-addNotify()
-{
- if (peer == null)
- peer = getToolkit ().createList (this);
- super.addNotify ();
-}
-
-/*************************************************************************/
-
-/**
- * Notifies this object to destroy its native peer.
- */
-public void
-removeNotify()
-{
- super.removeNotify();
-}
-
-/*************************************************************************/
-
-/**
- * Adds the specified <code>ActionListener</code> to the list of
- * registered listeners for this object.
- *
- * @param listener The listener to add.
- */
-public synchronized void
-addActionListener(ActionListener listener)
-{
- action_listeners = AWTEventMulticaster.add(action_listeners, listener);
-}
-
-/*************************************************************************/
-
-/**
- * Removes the specified <code>ActionListener</code> from the list of
- * registers listeners for this object.
- *
- * @param listener The listener to remove.
- */
-public synchronized void
-removeActionListener(ActionListener listener)
-{
- action_listeners = AWTEventMulticaster.remove(action_listeners, listener);
-}
-
-/*************************************************************************/
-
-/**
- * Adds the specified <code>ItemListener</code> 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 <code>ItemListener</code> from the list of
- * registers listeners for this object.
- *
- * @param listener The listener to remove.
- */
-public synchronized void
-removeItemListener(ItemListener listener)
-{
- item_listeners = AWTEventMulticaster.remove(item_listeners, listener);
-}
-
-/*************************************************************************/
-
-/**
- * Processes the specified event for this object. If the event is an
- * instance of <code>ActionEvent</code> then the
- * <code>processActionEvent()</code> method is called. Similarly, if the
- * even is an instance of <code>ItemEvent</code> then the
- * <code>processItemEvent()</code> method is called. Otherwise the
- * superclass method is called to process this event.
- *
- * @param event The event to process.
- */
-protected void
-processEvent(AWTEvent event)
-{
- if (event instanceof ActionEvent)
- processActionEvent((ActionEvent)event);
- if (event instanceof ItemEvent)
- processItemEvent((ItemEvent)event);
-
- super.processEvent(event);
-}
-
-/*************************************************************************/
-
-/**
- * This method processes the specified event by dispatching it to any
- * registered listeners. Note that this method will only get called if
- * action events are enabled. This will happen automatically if any
- * listeners are added, or it can be done "manually" by calling
- * the <code>enableEvents()</code> method.
- *
- * @param event The event to process.
- */
-protected void
-processActionEvent(ActionEvent event)
-{
- if (action_listeners != null)
- action_listeners.actionPerformed(event);
-}
-
-/*************************************************************************/
-
-/**
- * This method processes the specified event by dispatching it to any
- * registered listeners. Note that this method will only get called if
- * item events are enabled. This will happen automatically if any
- * listeners are added, or it can be done "manually" by calling
- * the <code>enableEvents()</code> method.
- *
- * @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 "multiple=" + multipleMode + ",rows=" + rows + super.paramString();
-}
-
-} // class List
projects / msp430-gcc.git / blobdiff