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* java/awt/Label.java: Merged with Classpath.
From-SVN: r48913
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Tom Tromey
Tom Tromey
parent
2e99323f30
commit
54c5eaff95
@ -1,3 +1,7 @@
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2002-01-16 Tom Tromey <tromey@redhat.com>
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* java/awt/Label.java: Merged with Classpath.
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2002-01-15 Tom Tromey <tromey@redhat.com>
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* java/awt/AWTPermission.java: Updated copyright.
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@ -1,88 +1,233 @@
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/* Copyright (C) 2000, 2001 Free Software Foundation
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/* Label.java -- Java label widget
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Copyright (C) 1999, 2000, 2002 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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As a special exception, if you link this library with other files to
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produce an executable, this library does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why the
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executable file might be covered by the GNU General Public License. */
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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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import java.awt.peer.ComponentPeer;
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import java.awt.peer.LabelPeer;
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import java.awt.peer.ComponentPeer;
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/**
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* @author Tom Tromey <tromey@cygnus.com>
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* @date April 12, 2000
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* This component is used for displaying simple text strings that cannot
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* be edited.
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*
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* @author Aaron M. Renn (arenn@urbanophile.com)
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* @author Tom Tromey <tromey@cygnus.com>
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*/
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public class Label extends Component implements java.io.Serializable
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{
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/*
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* Static Variables
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*/
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public class Label extends Component
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/**
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* Alignment constant aligning the text to the left of its window.
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*/
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public static final int LEFT = 0;
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/**
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* Alignment constant aligning the text in the center of its window.
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*/
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public static final int CENTER = 1;
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/**
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* Alignment constant aligning the text to the right of its window.
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*/
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public static final int RIGHT = 2;
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// Serialization version constant:
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private static final long serialVersionUID = 3094126758329070636L;
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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 Indicates the alignment of the text within this label's window.
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* This is one of the constants in this class. The default value is
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* <code>LEFT</code>.
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*/
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private int alignment;
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/**
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* @serial The text displayed in the label
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*/
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private String text;
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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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* Initializes a new instance of <code>Label</code> with no text.
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*/
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public
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Label()
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{
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public static final int CENTER = 1;
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public static final int LEFT = 0;
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public static final int RIGHT = 2;
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public Label ()
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{
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this ("", LEFT);
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}
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public Label (String text)
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{
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this (text, LEFT);
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}
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public Label (String text, int alignment)
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{
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if (alignment != CENTER && alignment != LEFT && alignment != RIGHT)
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throw new IllegalArgumentException ();
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this.text = text;
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this.alignment = alignment;
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}
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public void addNotify ()
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{
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if (peer == null)
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peer = getToolkit ().createLabel (this);
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super.addNotify ();
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}
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public int getAlignment ()
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{
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return alignment;
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}
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public String getText ()
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{
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return text;
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}
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protected String paramString ()
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{
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return "Label[" + alignment + "," + text + "]";
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}
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public void setAlignment (int alignment)
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{
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if (alignment != CENTER && alignment != LEFT && alignment != RIGHT)
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throw new IllegalArgumentException ();
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this.alignment = alignment;
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if (peer != null)
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{
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LabelPeer lp = (LabelPeer) peer;
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lp.setAlignment (alignment);
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}
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}
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public void setText (String text)
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{
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this.text = text;
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if (peer != null)
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{
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LabelPeer lp = (LabelPeer) peer;
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lp.setText (text);
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}
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}
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private String text;
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private int alignment;
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this("", LEFT);
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}
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/*************************************************************************/
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/**
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* Initializes a new instance of <code>Label</code> with the specified
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* text that is aligned to the left.
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*
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* @param text The text of the label.
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*/
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public
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Label(String text)
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{
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this(text, LEFT);
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}
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/*************************************************************************/
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/**
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* Initializes a new instance of <code>Label</code> with the specified
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* text and alignment.
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*
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* @param text The text of the label.
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* @param alignment The desired alignment for the text in this label,
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* which must be one of <code>LEFT</code>, <code>CENTER</code>, or
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* <code>RIGHT</code>.
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*/
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public
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Label(String text, int alignment)
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{
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setAlignment (alignment);
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setText (text);
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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 constant indicating the alignment of the text in this
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* label. The value returned will be one of the alignment constants
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* from this class.
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*
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* @return The alignment of the text in the label.
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*/
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public int
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getAlignment()
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{
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return(alignment);
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}
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/*************************************************************************/
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/**
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* Sets the text alignment of this label to the specified value.
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*
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* @param alignment The desired alignment for the text in this label,
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* which must be one of <code>LEFT</code>, <code>CENTER</code>, or
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* <code>RIGHT</code>.
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*/
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public synchronized void
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setAlignment(int alignment)
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{
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if (alignment != CENTER && alignment != LEFT && alignment != RIGHT)
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throw new IllegalArgumentException ("invalid alignment: " + alignment);
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this.alignment = alignment;
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if (peer != null)
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{
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LabelPeer lp = (LabelPeer) peer;
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lp.setAlignment (alignment);
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}
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}
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/*************************************************************************/
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/**
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* Returns the text displayed in this label.
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*
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* @return The text for this label.
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*/
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public String
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getText()
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{
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return(text);
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}
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/*************************************************************************/
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/**
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* Sets the text in this label to the specified value.
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*
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* @param text The new text for this label.
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*/
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public synchronized void
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setText(String text)
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{
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this.text = text;
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if (peer != null)
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{
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LabelPeer lp = (LabelPeer) peer;
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lp.setText (text);
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}
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}
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/*************************************************************************/
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/**
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* Notifies this lable that it has been added to a container, causing
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* the peer to be created. This method is called internally by the AWT
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* system.
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*/
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public void
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addNotify()
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{
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if (peer == null)
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peer = getToolkit ().createLabel (this);
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super.addNotify ();
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}
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/*************************************************************************/
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/**
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* Returns a parameter string useful for debugging.
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*
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* @param A debugging string.
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*/
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protected String
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paramString()
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{
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return(getClass().getName() + "(text=" + getText() + ",alignment=" +
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getAlignment() + ")");
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}
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} // class Label
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