TextField.java: Replaced with Classpath version.

	* java/awt/TextField.java: Replaced with Classpath version.
	* java/awt/TextArea.java: Replaced with Classpath version.
	* java/awt/TextComponent.java: Replaced with Classpath version.

From-SVN: r49113

1 files changed, 409 insertions, 35 deletions

diff --git a/libjava/java/awt/TextComponent.java b/libjava/java/awt/TextComponent.java
index 0836b5f..a90cb80 100644
--- a/libjava/java/awt/TextComponent.java
+++ b/libjava/java/awt/TextComponent.java
@@ -1,51 +1,425 @@
-/* Copyright (C) 1999, 2001  Free Software Foundation
+/* TextComponent.java -- Widgets for entering text
+   Copyright (C) 1999 Free Software Foundation, Inc.
 
-   This file is part of libjava.
+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. */
 
-This software is copyrighted work licensed under the terms of the
-Libjava License.  Please consult the file "LIBJAVA_LICENSE" for
-details.  */
 
 package java.awt;
 
-import java.awt.event.*;
+import java.awt.event.TextEvent;
+import java.awt.event.TextListener;
 import java.awt.peer.TextComponentPeer;
+import java.awt.peer.ComponentPeer;
+
+/**
+  * This class provides common functionality for widgets than 
+  * contain text.
+  *
+  * @author Aaron M. Renn (arenn@urbanophile.com)
+  */
+public class TextComponent extends Component implements java.io.Serializable
+{
+
+/*
+ * Static Variables
+ */
+
+// Constant for serialization
+private static final long serialVersionUID = -2214773872412987419L;
+
+/*
+ * Instance Variables
+ */
+
+/**
+  * @serial Indicates whether or not this component is editable.
+  */
+private boolean editable;
+
+/**
+  * @serial The starting position of the selected text region.
+  */
+private int selectionStart;
+
+/**
+  * @serial The ending position of the selected text region.
+  */
+private int selectionEnd;
 
-/* A very incomplete placeholder. */
+/**
+  * @serial The text in the component
+  */
+private String text;
 
-public class TextComponent extends Component
+/**
+  * A list of listeners that will receive events from this object.
+  */
+protected transient TextListener textListener;
+
+/*************************************************************************/
+
+/*
+ * Constructors
+ */
+
+TextComponent(String text)
 {
-  protected TextListener textListener;
+  this.text = text;
+}
 
-  char[] buffer;
-  int length;
-  int caretPosition;
+/*************************************************************************/
 
-  public synchronized void addTextListener (TextListener listener)
-  {
-    textListener = AWTEventMulticaster.add (textListener, listener);
-  }
+/*
+ * Instance Methods
+ */
 
-  public synchronized String getText ()
-  { return new String(buffer, 0, length); }
+/**
+  * Returns the text in this component
+  *
+  * @return The text in this component.
+  */
+public synchronized String
+getText()
+{
+  TextComponentPeer tcp = (TextComponentPeer)getPeer();
+  if (tcp != null)
+    text = tcp.getText();
 
-  public synchronized void setText (String text)
-  {
-    length = text.length();
-    if (buffer == null || buffer.length < length)
-      buffer = new char[length];
-    text.getChars(0, length, buffer, 0);
-  }
+  return(text);
+}
 
-  public int getCaretPosition () { return caretPosition; }
+/*************************************************************************/
 
-  public void setCaretPosition (int pos)
-  {
-    caretPosition = pos;
-    if (peer != null)
-      {
-	TextComponentPeer t = (TextComponentPeer) peer;
-	t.setCaretPosition (pos);
-      }
-  }
+/**
+  * Sets the text in this component to the specified string.
+  *
+  * @param text The new text for this component.
+  */
+public synchronized void
+setText(String text)
+{
+  if (text == null)
+    text = "";
+
+  this.text = text;
+
+  TextComponentPeer tcp = (TextComponentPeer)getPeer();
+  if (tcp != null)
+    tcp.setText(text);
+}
+
+/*************************************************************************/
+
+/**
+  * Returns a string that contains the text that is currently selected.
+  *
+  * @return The currently selected text region.
+  */
+public synchronized String
+getSelectedText()
+{
+  String alltext = getText();
+  int start = getSelectionStart();
+  int end = getSelectionEnd();
+  
+  return(alltext.substring(start, end));
 }
+
+/*************************************************************************/
+
+/**
+  * Returns the starting position of the selected text region.
+  * // FIXME: What is returned if there is no selected text?
+  *
+  * @return The starting position of the selected text region.
+  */
+public synchronized int
+getSelectionStart()
+{
+  TextComponentPeer tcp = (TextComponentPeer)getPeer();
+  if (tcp != null)
+    selectionStart = tcp.getSelectionStart();
+
+  return(selectionStart);
+}
+
+/*************************************************************************/
+
+/**
+  * Sets the starting position of the selected region to the
+  * specified value.  If the specified value is out of range, then it
+  * will be silently changed to the nearest legal value.
+  *
+  * @param selectionStart The new start position for selected text.
+  */
+public synchronized void
+setSelectionStart(int selectionStart)
+{
+  select(selectionStart, getSelectionEnd());
+}
+
+/*************************************************************************/
+
+/**
+  * Returns the ending position of the selected text region.
+  * // FIXME: What is returned if there is no selected text.
+  *
+  * @return The ending position of the selected text region.
+  */
+public synchronized int
+getSelectionEnd()
+{
+  TextComponentPeer tcp = (TextComponentPeer)getPeer();
+  if (tcp != null)
+    selectionEnd = tcp.getSelectionEnd();
+
+  return(selectionEnd);
+}
+
+/*************************************************************************/
+
+/**
+  * Sets the ending position of the selected region to the
+  * specified value.  If the specified value is out of range, then it
+  * will be silently changed to the nearest legal value.
+  *
+  * @param selectionEnd The new start position for selected text.
+  */
+public synchronized void
+setSelectionEnd(int selectionEnd)
+{
+  select(getSelectionStart(), selectionEnd);
+}
+
+/*************************************************************************/
+
+/**
+  * This method sets the selected text range to the text between the
+  * specified start and end positions.  Illegal values for these
+  * positions are silently fixed.
+  *
+  * @param startSelection The new start position for the selected text.
+  * @param endSelection The new end position for the selected text.
+  */
+public synchronized void
+select(int selectionStart, int endSelection)
+{
+  if (selectionStart < 0)
+    selectionStart = 0;
+
+  if (selectionStart > getText().length())
+    selectionStart = text.length();
+
+  if (selectionEnd > text.length())
+    selectionEnd = text.length();
+
+  if (selectionStart > getSelectionEnd())
+    selectionStart = selectionEnd;
+
+  this.selectionStart = selectionStart;
+  this.selectionEnd = selectionEnd;
+
+  TextComponentPeer tcp = (TextComponentPeer)getPeer();
+  if (tcp != null)
+    tcp.select(selectionStart, selectionEnd);
+}
+
+/*************************************************************************/
+
+/**
+  * Selects all of the text in the component.
+  */
+public synchronized void
+selectAll()
+{
+  select(0, getText().length());
+}
+
+/*************************************************************************/
+
+/**
+  * Returns the current caret position in the text.
+  *
+  * @return The caret position in the text.
+  */
+public synchronized int
+getCaretPosition()
+{
+  TextComponentPeer tcp = (TextComponentPeer)getPeer();
+  if (tcp != null)
+    return(tcp.getCaretPosition());
+  else
+    return(0);
+}
+
+/*************************************************************************/
+
+/**
+  * Sets the caret position to the specified value.
+  *
+  * @param caretPosition The new caret position.
+  */
+public synchronized void
+setCaretPosition(int caretPosition)
+{
+  TextComponentPeer tcp = (TextComponentPeer)getPeer();
+  if (tcp != null)
+    tcp.setCaretPosition(caretPosition);
+}
+
+/*************************************************************************/
+
+/**
+  * Tests whether or not this component's text can be edited.
+  *
+  * @return <code>true</code> if the text can be edited, <code>false</code>
+  * otherwise.
+  */
+public boolean
+isEditable()
+{
+  return(editable);
+}
+
+/*************************************************************************/
+
+/**
+  * Sets whether or not this component's text can be edited.
+  *
+  * @param editable <code>true</code> to enable editing of the text,
+  * <code>false</code> to disable it.
+  */
+public synchronized void
+setEditable(boolean editable)
+{
+  this.editable = editable;
+
+  TextComponentPeer tcp = (TextComponentPeer)getPeer();
+  if (tcp != null)
+    tcp.setEditable(editable);
+}
+
+/*************************************************************************/
+
+/**
+  * Notifies the component that it should destroy its native peer.
+  */
+public void
+removeNotify()
+{
+  super.removeNotify();
+}
+
+/*************************************************************************/
+
+/**
+  * Adds a new listener to the list of text listeners for this
+  * component.
+  *
+  * @param listener The listener to be added.
+  */
+public synchronized void
+addTextListener(TextListener listener)
+{
+  textListener = AWTEventMulticaster.add(textListener, listener);
+
+  enableEvents(AWTEvent.TEXT_EVENT_MASK);  
+}
+
+/*************************************************************************/
+
+/**
+  * Removes the specified listener from the list of listeners
+  * for this component.
+  *
+  * @param listener The listener to remove.
+  */
+public synchronized void
+removeTextListener(TextListener listener)
+{
+  textListener = AWTEventMulticaster.remove(textListener, listener);
+}
+
+/*************************************************************************/
+
+/**
+  * Processes the specified event for this component.  Text events are
+  * processed by calling the <code>processTextEvent()</code> method.
+  * All other events are passed to the superclass method.
+  * 
+  * @param event The event to process.
+  */
+protected void
+processEvent(AWTEvent event)
+{
+  if (event instanceof TextEvent)
+    processTextEvent((TextEvent)event);
+  else
+    super.processEvent(event);
+}
+
+/*************************************************************************/
+
+/**
+  * Processes the specified text event by dispatching it to any listeners
+  * that are registered.  Note that this method will only be called
+  * if text event's are enabled.  This will be true if there are any
+  * registered listeners, or if the event has been specifically
+  * enabled using <code>enableEvents()</code>.
+  *
+  * @param event The text event to process.
+  */
+protected void
+processTextEvent(TextEvent event)
+{
+  if (textListener != null)
+    textListener.textValueChanged(event);
+}
+
+/*************************************************************************/
+
+/**
+  * Returns a debugging string.
+  *
+  * @return A debugging string.
+  */
+protected String
+paramString()
+{
+  return(getClass().getName() + "(text=" + getText() + ")");
+}
+
+} // class TextComponent
+