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
This commit is contained in:
Tom Tromey
Tom Tromey
parent
d0c9db3079
commit
956e776dd2
@ -1,5 +1,9 @@
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2002-01-22 Tom Tromey <tromey@redhat.com>
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* java/awt/TextField.java: Replaced with Classpath version.
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* java/awt/TextArea.java: Replaced with Classpath version.
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* java/awt/TextComponent.java: Replaced with Classpath version.
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* java/awt/GridBagConstraints.java: Updated copyright.
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2002-01-22 Mark Wielaard <mark@klomp.org>
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@ -1,49 +1,549 @@
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/* Copyright (C) 1999 Free Software Foundation
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/* TextArea.java -- A multi-line text entry widget
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of libjava.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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This software is copyrighted work licensed under the terms of the
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Libjava License. Please consult the file "LIBJAVA_LICENSE" for
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details. */
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package java.awt;
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/* A very incomplete placeholder. */
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import java.awt.peer.TextAreaPeer;
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import java.awt.peer.TextComponentPeer;
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import java.awt.peer.ComponentPeer;
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public class TextArea extends TextComponent
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/**
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* This implements a multi-line text entry widget.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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*/
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public class TextArea extends TextComponent implements java.io.Serializable
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{
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public synchronized void append (String str)
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{
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replaceRange(str, length, length);
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}
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public synchronized void insert (String str, int pos)
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{
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replaceRange(str, pos, pos);
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}
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/*
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* Static Variables
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*/
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public synchronized void replaceRange (String str, int start, int end)
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{
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if (length == 0)
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setText (str);
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else
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{
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int len = str.length();
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int delta = len - (end - start);
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int new_length = length + delta;
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if (buffer.length < new_length)
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{
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int new_size = 2 * buffer.length;
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if (new_size < new_length)
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new_size = new_length;
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char[] new_buffer = new char[new_size];
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System.arraycopy(buffer, 0, new_buffer, 0, length);
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buffer = new_buffer;
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}
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if (len != end)
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System.arraycopy(buffer, start, buffer, start + len, len - end);
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str.getChars(0, len, buffer, start);
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length += delta;
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}
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}
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/**
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* Use both horiztonal and vertical scroll bars.
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*/
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public static final int SCROLLBARS_BOTH = 0;
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/**
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* Use vertical scroll bars only.
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*/
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public static final int SCROLLBARS_VERTICAL_ONLY = 1;
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/**
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* Use horizatonal scroll bars only.
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*/
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public static final int SCROLLBARS_HORIZONTAL_ONLY = 2;
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/**
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* Use no scrollbars.
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*/
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public static final int SCROLLBARS_NONE = 3;
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// Serialization constant
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private static final long serialVersionUID = 3692302836626095722L;
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/*************************************************************************/
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/*
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* Instance Variables
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*/
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/**
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* @serial The number of columns in this text area.
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*/
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private int columns;
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/**
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* @serial The number of rows in this text area.
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*/
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private int rows;
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/**
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* @serial The type of scrollbars to display, which will be one of
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* the contstants from this class.
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*/
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private int scrollbarVisibility;
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/*************************************************************************/
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/*
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* Constructors
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*/
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/**
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* Initialize a new instance of <code>TextArea</code> that is empty
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* and is one row and one column. Both horizontal and vertical
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* scrollbars will be used.
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*/
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public
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TextArea()
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{
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this("", 1, 1, SCROLLBARS_BOTH);
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}
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/*************************************************************************/
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/**
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* Initializes a new instance of <code>TextArea</code> that
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* contains the specified string. Both horizontal and veritcal
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* scrollbars will be used.
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*
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* @param text The text to display in this text area.
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*/
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public
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TextArea(String text)
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{
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this(text, 1, text.length(), SCROLLBARS_BOTH);
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}
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/*************************************************************************/
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/**
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* Initializes a new instance of <code>TextArea</code> that is empty
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* and has the specified number of rows and columns. Both
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* horizontal and vertical scrollbars will be used.
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*
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* @param rows The number of rows in this text area.
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* @param columns The number of columns in this text area.
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*/
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public
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TextArea(int rows, int columns)
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{
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this("", rows, columns, SCROLLBARS_BOTH);
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}
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/*************************************************************************/
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/**
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* Initializes a new instance of <code>TextArea</code> that is the
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* specified size and has the specified text.
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*
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* @param text The text to display in this text area.
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* @param rows The number of rows in this text area.
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* @param columns The number of columns in this text area.
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*/
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public
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TextArea(String text, int rows, int columns)
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{
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this(text, rows, columns, SCROLLBARS_BOTH);
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}
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/*************************************************************************/
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/**
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* Initializes a new instance of <code>TextArea</code> with the
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* specified values. The scrollbar visibility value must be one
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* of the constants in this class.
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*
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* @param text The text to display in this text area.
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* @param rows The number of rows in this text area.
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* @param columns The number of columns in this text area.
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* @param scrollbarVisibility Which scrollbars to display.
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*/
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public
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TextArea(String text, int rows, int columns, int scrollbarVisibility)
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{
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super(text);
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if ((rows < 1) || (columns < 0))
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throw new IllegalArgumentException("Bad row or column value");
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if ((scrollbarVisibility != SCROLLBARS_BOTH) &&
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(scrollbarVisibility != SCROLLBARS_VERTICAL_ONLY) &&
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(scrollbarVisibility != SCROLLBARS_HORIZONTAL_ONLY) &&
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(scrollbarVisibility != SCROLLBARS_NONE))
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throw new IllegalArgumentException("Bad scrollbar visibility value");
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this.rows = rows;
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this.columns = columns;
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this.scrollbarVisibility = scrollbarVisibility;
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}
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/*************************************************************************/
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/*
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* Instance Variables
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*/
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/**
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* Returns the number of columns in the field.
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*
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* @return The number of columns in the field.
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*/
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public int
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getColumns()
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{
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return(columns);
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}
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/*************************************************************************/
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/**
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* Sets the number of columns in this field to the specified value.
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*
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* @param columns The new number of columns in the field.
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*
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* @exception IllegalArgumentException If columns is less than zero.
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*/
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public synchronized void
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setColumns(int columns)
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{
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if (columns < 0)
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throw new IllegalArgumentException("Value is less than zero: " +
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columns);
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this.columns = columns;
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// FIXME: How to we communicate this to our peer?
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}
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/*************************************************************************/
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/**
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* Returns the number of rows in the field.
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*
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* @return The number of rows in the field.
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*/
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public int
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getRows()
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{
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return(rows);
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}
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/*************************************************************************/
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/**
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* Sets the number of rows in this field to the specified value.
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*
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* @param rows The new number of rows in the field.
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*
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* @exception IllegalArgumentException If rows is less than zero.
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*/
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public synchronized void
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setRows(int rows)
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{
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if (rows < 1)
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throw new IllegalArgumentException("Value is less than one: " +
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rows);
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this.rows = rows;
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// FIXME: How to we communicate this to our peer?
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}
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/*************************************************************************/
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/**
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* Returns the minimum size for this text field.
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*
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* @return The minimum size for this text field.
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*/
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public Dimension
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getMinimumSize()
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{
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return(getMinimumSize(getRows(), getColumns()));
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}
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/*************************************************************************/
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/**
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* Returns the minimum size of a text field with the specified number
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* of rows and columns.
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*
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* @param rows The number of rows to get the minimum size for.
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* @param columns The number of columns to get the minimum size for.
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*/
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public Dimension
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getMinimumSize(int rows, int columns)
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{
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TextAreaPeer tap = (TextAreaPeer)getPeer();
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if (tap == null)
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return(null); // FIXME: What do we do if there is no peer?
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return(tap.getMinimumSize(rows, columns));
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}
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/*************************************************************************/
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/**
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* Returns the minimum size for this text field.
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*
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* @return The minimum size for this text field.
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*
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* @deprecated This method is depcreated in favor of
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* <code>getMinimumSize()</code>.
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*/
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public Dimension
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minimumSize()
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{
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return(getMinimumSize(getRows(), getColumns()));
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}
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/*************************************************************************/
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/**
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* Returns the minimum size of a text field with the specified number
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* of rows and columns.
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*
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* @param rows The number of rows to get the minimum size for.
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* @param columns The number of columns to get the minimum size for.
|
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*
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* @deprecated This method is deprecated in favor of
|
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* <code>getMinimumSize(int)</code>.
|
||||
*/
|
||||
public Dimension
|
||||
minimumSize(int rows, int columns)
|
||||
{
|
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return(getMinimumSize(rows, columns));
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the preferred size for this text field.
|
||||
*
|
||||
* @return The preferred size for this text field.
|
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*/
|
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public Dimension
|
||||
getPreferredSize()
|
||||
{
|
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return(getPreferredSize(getRows(), getColumns()));
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the preferred size of a text field with the specified number
|
||||
* of rows and columns.
|
||||
*
|
||||
* @param rows The number of rows to get the preferred size for.
|
||||
* @param columns The number of columns to get the preferred size for.
|
||||
*/
|
||||
public Dimension
|
||||
getPreferredSize(int rows, int columns)
|
||||
{
|
||||
TextAreaPeer tap = (TextAreaPeer)getPeer();
|
||||
if (tap == null)
|
||||
return(null); // FIXME: What do we do if there is no peer?
|
||||
|
||||
return(tap.getPreferredSize(rows, 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(getPreferredSize(getRows(), getColumns()));
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the preferred size of a text field with the specified number
|
||||
* of rows and columns.
|
||||
*
|
||||
* @param rows The number of rows to get the preferred size for.
|
||||
* @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)
|
||||
{
|
||||
return(getPreferredSize(rows, columns));
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns one of the constants from this class indicating which
|
||||
* types of scrollbars this object uses, if any.
|
||||
*
|
||||
* @return The scrollbar type constant for this object.
|
||||
*/
|
||||
public int
|
||||
getScrollbarVisibility()
|
||||
{
|
||||
return(scrollbarVisibility);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Notify this object that it should create its native peer.
|
||||
*/
|
||||
public void
|
||||
addNotify()
|
||||
{
|
||||
if (getPeer() != null)
|
||||
return;
|
||||
|
||||
setPeer((ComponentPeer)getToolkit().createTextArea(this));
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Appends the specified text to the end of the current text.
|
||||
*
|
||||
* @param text The text to append.
|
||||
*/
|
||||
public void
|
||||
append(String str)
|
||||
{
|
||||
TextAreaPeer tap = (TextAreaPeer)getPeer();
|
||||
if (tap == null)
|
||||
return;
|
||||
|
||||
tap.insert(str, tap.getText().length());
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Appends the specified text to the end of the current text.
|
||||
*
|
||||
* @param text The text to append.
|
||||
*
|
||||
* @deprecated This method is deprecated in favor of
|
||||
* <code>append()</code>.
|
||||
*/
|
||||
public void
|
||||
appendText(String text)
|
||||
{
|
||||
append(text);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Inserts the specified text at the specified location.
|
||||
*
|
||||
* @param text The text to insert.
|
||||
* @param pos The insert position.
|
||||
*/
|
||||
public void
|
||||
insert(String text, int pos)
|
||||
{
|
||||
TextAreaPeer tap = (TextAreaPeer)getPeer();
|
||||
if (tap == null)
|
||||
return;
|
||||
|
||||
tap.insert(text, pos);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Inserts the specified text at the specified location.
|
||||
*
|
||||
* @param text The text to insert.
|
||||
* @param pos The insert position.
|
||||
*
|
||||
* @deprecated This method is depcreated in favor of <code>insert()</code>.
|
||||
*/
|
||||
public void
|
||||
insertText(String text, int pos)
|
||||
{
|
||||
insert(text, pos);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Replaces the text bounded by the specified start and end positions
|
||||
* with the specified text.
|
||||
*
|
||||
* @param text The new text for the range.
|
||||
* @param start The start position of the replacement range.
|
||||
* @param end The end position of the replacement range.
|
||||
*/
|
||||
public void
|
||||
replaceRange(String text, int start, int end)
|
||||
{
|
||||
TextAreaPeer tap = (TextAreaPeer)getPeer();
|
||||
if (tap == null)
|
||||
return;
|
||||
|
||||
tap.replaceRange(text, start, end);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Replaces the text bounded by the specified start and end positions
|
||||
* with the specified text.
|
||||
*
|
||||
* @param text The new text for the range.
|
||||
* @param start The start position of the replacement range.
|
||||
* @param end The end position of the replacement range.
|
||||
*
|
||||
* @deprecated This method is deprecated in favor of
|
||||
* <code>replaceRange()</code>.
|
||||
*/
|
||||
public void
|
||||
replaceText(String text, int start, int end)
|
||||
{
|
||||
replaceRange(text, start, end);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns a debugging string for this text area.
|
||||
*
|
||||
* @return A debugging string for this text area.
|
||||
*/
|
||||
protected String
|
||||
paramString()
|
||||
{
|
||||
return(getClass().getName() + "(rows=" + getRows() + ",columns=" +
|
||||
getColumns() + ",scrollbars=" + getScrollbarVisibility() +
|
||||
")");
|
||||
}
|
||||
|
||||
} // class TextArea
|
||||
|
||||
|
||||
@ -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;
|
||||
|
||||
/* A very incomplete placeholder. */
|
||||
|
||||
public class TextComponent extends Component
|
||||
/**
|
||||
* 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
|
||||
{
|
||||
protected TextListener textListener;
|
||||
|
||||
char[] buffer;
|
||||
int length;
|
||||
int caretPosition;
|
||||
/*
|
||||
* Static Variables
|
||||
*/
|
||||
|
||||
public synchronized void addTextListener (TextListener listener)
|
||||
{
|
||||
textListener = AWTEventMulticaster.add (textListener, listener);
|
||||
}
|
||||
// Constant for serialization
|
||||
private static final long serialVersionUID = -2214773872412987419L;
|
||||
|
||||
public synchronized String getText ()
|
||||
{ return new String(buffer, 0, length); }
|
||||
/*
|
||||
* Instance Variables
|
||||
*/
|
||||
|
||||
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);
|
||||
}
|
||||
/**
|
||||
* @serial Indicates whether or not this component is editable.
|
||||
*/
|
||||
private boolean editable;
|
||||
|
||||
public int getCaretPosition () { return caretPosition; }
|
||||
/**
|
||||
* @serial The starting position of the selected text region.
|
||||
*/
|
||||
private int selectionStart;
|
||||
|
||||
public void setCaretPosition (int pos)
|
||||
{
|
||||
caretPosition = pos;
|
||||
if (peer != null)
|
||||
{
|
||||
TextComponentPeer t = (TextComponentPeer) peer;
|
||||
t.setCaretPosition (pos);
|
||||
}
|
||||
}
|
||||
/**
|
||||
* @serial The ending position of the selected text region.
|
||||
*/
|
||||
private int selectionEnd;
|
||||
|
||||
/**
|
||||
* @serial The text in the component
|
||||
*/
|
||||
private String text;
|
||||
|
||||
/**
|
||||
* A list of listeners that will receive events from this object.
|
||||
*/
|
||||
protected transient TextListener textListener;
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/*
|
||||
* Constructors
|
||||
*/
|
||||
|
||||
TextComponent(String text)
|
||||
{
|
||||
this.text = text;
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/*
|
||||
* Instance Methods
|
||||
*/
|
||||
|
||||
/**
|
||||
* 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();
|
||||
|
||||
return(text);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* 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
|
||||
|
||||
|
||||
@ -1,16 +1,469 @@
|
||||
/* Copyright (C) 2000 Free Software Foundation
|
||||
/* TextField.java -- A one line text entry field
|
||||
Copyright (C) 1999 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of libgcj.
|
||||
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
|
||||
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
|
||||
details. */
|
||||
|
||||
package java.awt;
|
||||
import java.awt.event.*;
|
||||
|
||||
/* A very incomplete placeholder. */
|
||||
import java.awt.event.ActionEvent;
|
||||
import java.awt.event.ActionListener;
|
||||
import java.awt.peer.TextFieldPeer;
|
||||
import java.awt.peer.TextComponentPeer;
|
||||
import java.awt.peer.ComponentPeer;
|
||||
|
||||
public class TextField extends TextComponent
|
||||
/**
|
||||
* This class implements a single line text entry field widget
|
||||
*
|
||||
* @author Aaron M. Renn (arenn@urbanophile.com)
|
||||
*/
|
||||
public class TextField extends TextComponent implements java.io.Serializable
|
||||
{
|
||||
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
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.
|
||||
*/
|
||||
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.
|
||||
*/
|
||||
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.
|
||||
*/
|
||||
public
|
||||
TextField(String text, int columns)
|
||||
{
|
||||
super(text);
|
||||
this.columns = columns;
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/*
|
||||
* 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)
|
||||
{
|
||||
this.echoChar = echoChar;
|
||||
|
||||
TextFieldPeer tfp = (TextFieldPeer)getPeer();
|
||||
if (tfp != null)
|
||||
tfp.setEchoChar(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)
|
||||
{
|
||||
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)
|
||||
{
|
||||
TextFieldPeer tfp = (TextFieldPeer)getPeer();
|
||||
if (tfp == null)
|
||||
return(null); // FIXME: What do we do if there is no peer?
|
||||
|
||||
return(tfp.getMinimumSize(columns));
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the minimum size for this text field.
|
||||
*
|
||||
* @return The minimum size for this text field.
|
||||
*
|
||||
* @deprecated This method is depcreated in favor of
|
||||
* <code>getMinimumSize()</code>.
|
||||
*/
|
||||
public Dimension
|
||||
minimumSize()
|
||||
{
|
||||
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.
|
||||
*
|
||||
* @deprecated This method is deprecated in favor of
|
||||
* <code>getMinimumSize(int)</code>.
|
||||
*/
|
||||
public Dimension
|
||||
minimumSize(int columns)
|
||||
{
|
||||
return(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)
|
||||
{
|
||||
TextFieldPeer tfp = (TextFieldPeer)getPeer();
|
||||
if (tfp == null)
|
||||
return(null); // FIXME: What do we do if there is no peer?
|
||||
|
||||
return(tfp.getPreferredSize(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(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.
|
||||
*
|
||||
* @deprecated This method is deprecated in favor of
|
||||
* <code>getPreferredSize(int)</code>.
|
||||
*/
|
||||
public Dimension
|
||||
preferredSize(int columns)
|
||||
{
|
||||
return(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);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns a debug string for this object.
|
||||
*
|
||||
* @return A debug string for this object.
|
||||
*/
|
||||
protected String
|
||||
paramString()
|
||||
{
|
||||
return(getClass().getName() + "(columns=" + getColumns() + ",echoChar=" +
|
||||
getEchoChar());
|
||||
}
|
||||
|
||||
} // class TextField
|
||||
|
||||
Loading…
Reference in New Issue
Block a user