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-/* TextField.java -- A one line text entry field
- Copyright (C) 1999, 2002, 2004 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.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.peer.ComponentPeer;
-import java.awt.peer.TextFieldPeer;
-import java.util.EventListener;
-
-import javax.accessibility.AccessibleContext;
-import javax.accessibility.AccessibleStateSet;
-
-/**
- * This class implements a single line text entry field widget
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- */
-public class TextField extends TextComponent
-{
-
-/*
- * Static Variables
- */
-
-// Serialization constant
-private static final long serialVersionUID = -2966288784432217853L;
-
-/*************************************************************************/
-
-/*
- * Instance Variables
- */
-
-/**
- * @serial The number of columns in the text entry field.
- */
-private int columns;
-
-/**
- * @serial The character that is echoed when doing protected input
- */
-private char echoChar;
-
-// List of registered ActionListener's for this object.
-private ActionListener action_listeners;
-
-/*************************************************************************/
-
-/*
- * Constructors
- */
-
-/**
- * Initializes a new instance of <code>TextField</code> that is empty
- * and has one column.
- *
- * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true,
- */
-public
-TextField()
-{
- this("", 1);
-}
-
-/*************************************************************************/
-
-/**
- * Initializes a new instance of <code>TextField</code> containing
- * the specified text. The number of columns will be equal to the
- * length of the text string.
- *
- * @param text The text to display in the field.
- *
- * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true,
- */
-public
-TextField(String text)
-{
- this(text, text.length());
-}
-
-/*************************************************************************/
-
-/**
- * Initializes a new instance of <code>TextField</code> that is empty
- * and has the specified number of columns.
- *
- * @param columns The number of columns in the text field.
- *
- * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true,
- */
-public
-TextField(int columns)
-{
- this("", columns);
-}
-
-/*************************************************************************/
-
-/**
- * Initializes a new instance of <code>TextField</code> with the
- * specified text and number of columns.
- *
- * @param text The text to display in the field.
- * @param columns The number of columns in the field.
- *
- * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true,
- */
-public
-TextField(String text, int columns)
-{
- super(text);
- this.columns = columns;
-
- if (GraphicsEnvironment.isHeadless())
- throw new HeadlessException ();
-}
-
-/*************************************************************************/
-
-/*
- * Instance Methods
- */
-
-/**
- * Returns the number of columns in the field.
- *
- * @return The number of columns in the field.
- */
-public int
-getColumns()
-{
- return(columns);
-}
-
-/*************************************************************************/
-
-/**
- * Sets the number of columns in this field to the specified value.
- *
- * @param columns The new number of columns in the field.
- *
- * @exception IllegalArgumentException If columns is less than zero.
- */
-public synchronized void
-setColumns(int columns)
-{
- if (columns < 0)
- throw new IllegalArgumentException("Value is less than zero: " +
- columns);
-
- this.columns = columns;
- // FIXME: How to we communicate this to our peer?
-}
-
-/*************************************************************************/
-
-/**
- * Returns the character that is echoed to the screen when a text
- * field is protected (such as when a password is being entered).
- *
- * @return The echo character for this text field.
- */
-public char
-getEchoChar()
-{
- return(echoChar);
-}
-
-/*************************************************************************/
-
-/**
- * Sets the character that is echoed when protected input such as
- * a password is displayed.
- *
- * @param echoChar The new echo character.
- */
-public void
-setEchoChar(char echoChar)
-{
- setEchoCharacter (echoChar);
-}
-
-/*************************************************************************/
-
-/**
- * Sets the character that is echoed when protected input such as
- * a password is displayed.
- *
- * @param echoChar The new echo character.
- *
- * @deprecated This method is deprecated in favor of
- * <code>setEchoChar()</code>
- */
-public void
-setEchoCharacter(char echoChar)
-{
- this.echoChar = echoChar;
-
- TextFieldPeer peer = (TextFieldPeer) getPeer ();
- if (peer != null)
- peer.setEchoChar (echoChar);
-}
-
-/*************************************************************************/
-
-/**
- * Tests whether or not this text field has an echo character set
- * so that characters the user type are not echoed to the screen.
- *
- * @return <code>true</code> if an echo character is set,
- * <code>false</code> otherwise.
- */
-public boolean
-echoCharIsSet()
-{
- if (echoChar == '\u0000')
- return(false);
- else
- return(true);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the minimum size for this text field.
- *
- * @return The minimum size for this text field.
- */
-public Dimension
-getMinimumSize()
-{
- return getMinimumSize (getColumns ());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the minimum size of a text field with the specified number
- * of columns.
- *
- * @param columns The number of columns to get the minimum size for.
- */
-public Dimension
-getMinimumSize(int columns)
-{
- return minimumSize (columns);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the minimum size for this text field.
- *
- * @return The minimum size for this text field.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getMinimumSize()</code>.
- */
-public Dimension
-minimumSize()
-{
- return minimumSize (getColumns ());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the minimum size of a text field with the specified number
- * of columns.
- *
- * @param columns The number of columns to get the minimum size for.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getMinimumSize(int)</code>.
- */
-public Dimension
-minimumSize(int columns)
-{
- TextFieldPeer peer = (TextFieldPeer) getPeer ();
- if (peer == null)
- return null; // FIXME: What do we do if there is no peer?
-
- return peer.getMinimumSize (columns);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the preferred size for this text field.
- *
- * @return The preferred size for this text field.
- */
-public Dimension
-getPreferredSize()
-{
- return getPreferredSize (getColumns ());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the preferred size of a text field with the specified number
- * of columns.
- *
- * @param columns The number of columns to get the preferred size for.
- */
-public Dimension
-getPreferredSize(int columns)
-{
- return preferredSize (columns);
-}
-
-/*************************************************************************/
-
-/**
- * Returns the preferred size for this text field.
- *
- * @return The preferred size for this text field.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getPreferredSize()</code>.
- */
-public Dimension
-preferredSize()
-{
- return preferredSize (getColumns ());
-}
-
-/*************************************************************************/
-
-/**
- * Returns the preferred size of a text field with the specified number
- * of columns.
- *
- * @param columns The number of columns to get the preferred size for.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getPreferredSize(int)</code>.
- */
-public Dimension
-preferredSize(int columns)
-{
- TextFieldPeer peer = (TextFieldPeer) getPeer ();
- if (peer == null)
- return new Dimension (0, 0);
-
- return peer.getPreferredSize (columns);
-}
-
-/*************************************************************************/
-
-/**
- * Notifies this object that it should create its native peer.
- */
-public void
-addNotify()
-{
- if (getPeer() != null)
- return;
-
- setPeer((ComponentPeer)getToolkit().createTextField(this));
-}
-
-/*************************************************************************/
-
-/**
- * Addes a new listener to the list of action listeners for this
- * object.
- *
- * @param listener The listener to add to the list.
- */
-public synchronized void
-addActionListener(ActionListener listener)
-{
- action_listeners = AWTEventMulticaster.add(action_listeners, listener);
-
- enableEvents(AWTEvent.ACTION_EVENT_MASK);
-}
-
-/*************************************************************************/
-
-/**
- * Removes the specified listener from the list of action listeners
- * for this object.
- *
- * @param listener The listener to remove from the list.
- */
-public synchronized void
-removeActionListener(ActionListener listener)
-{
- action_listeners = AWTEventMulticaster.remove(action_listeners, listener);
-}
-
-/*************************************************************************/
-
-/**
- * Processes the specified event. If the event is an instance of
- * <code>ActionEvent</code> then <code>processActionEvent()</code> is
- * called to process it, otherwise the event is sent to the
- * superclass.
- *
- * @param event The event to process.
- */
-protected void
-processEvent(AWTEvent event)
-{
- if (event instanceof ActionEvent)
- processActionEvent((ActionEvent)event);
- else
- super.processEvent(event);
-}
-
-/*************************************************************************/
-
-/**
- * Processes an action event by calling any registered listeners.
- * Note to subclasses: This method is not called unless action events
- * are enabled on this object. This will be true if any listeners
- * are registered, or if action events were specifically enabled
- * using <code>enableEvents()</code>.
- *
- * @param event The event to process.
- */
-protected void
-processActionEvent(ActionEvent event)
-{
- if (action_listeners != null)
- action_listeners.actionPerformed(event);
-}
-
-void
-dispatchEventImpl(AWTEvent e)
-{
- if (e.id <= ActionEvent.ACTION_LAST
- && e.id >= ActionEvent.ACTION_FIRST
- && (action_listeners != null
- || (eventMask & AWTEvent.ACTION_EVENT_MASK) != 0))
- processEvent(e);
- else
- super.dispatchEventImpl(e);
-}
-
-/*************************************************************************/
-
-/**
- * Returns a debug string for this object.
- *
- * @return A debug string for this object.
- */
-protected String
-paramString()
-{
- return(getClass().getName() + "(columns=" + getColumns() + ",echoChar=" +
- getEchoChar());
-}
-
- /**
- * Returns an array of all the objects currently registered as FooListeners
- * upon this <code>TextField</code>. FooListeners are registered using the
- * addFooListener method.
- *
- * @exception ClassCastException If listenerType doesn't specify a class or
- * interface that implements java.util.EventListener.
- *
- * @since 1.3
- */
- public EventListener[] getListeners (Class listenerType)
- {
- if (listenerType == ActionListener.class)
- return AWTEventMulticaster.getListeners (action_listeners, listenerType);
-
- return super.getListeners (listenerType);
- }
-
- /**
- * Return all ActionListeners register to this <code>TextField</code> object
- * as an array.
- *
- * @since 1.4
- */
- public ActionListener[] getActionListeners ()
- {
- return (ActionListener[]) getListeners (ActionListener.class);
- }
-
- protected class AccessibleAWTTextField extends AccessibleAWTTextComponent
- {
- protected AccessibleAWTTextField()
- {
- }
-
- public AccessibleStateSet getAccessibleStateSet()
- {
- return super.getAccessibleStateSet();
- }
- }
-
- public AccessibleContext getAccessibleContext()
- {
- return new AccessibleAWTTextField();
- }
-
-} // class TextField