jdk/src/share/classes/javax/swing/text/html/TextAreaDocument.java
author yan
Mon, 14 Oct 2013 11:47:27 +0400
changeset 21254 f6d36ee3f269
parent 5506 202f599c92aa
child 23697 e556a715949f
permissions -rw-r--r--
8025824: [cleanup] Fix tidy errors and warnings in preformatted HTML files related to 2d/awt/swing Reviewed-by: anthony, alexsch
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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 * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package javax.swing.text.html;
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import javax.swing.text.*;
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/**
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 * TextAreaDocument extends the capabilities of the PlainDocument
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 * to store the data that is initially set in the Document.
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 * This is stored in order to enable an accurate reset of the
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 * state when a reset is requested.
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 *
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 * @author Sunita Mani
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 */
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class TextAreaDocument extends PlainDocument {
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    String initialText;
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    /**
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     * Resets the model by removing all the data,
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     * and restoring it to its initial state.
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     */
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    void reset() {
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        try {
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            remove(0, getLength());
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            if (initialText != null) {
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                insertString(0, initialText, null);
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            }
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        } catch (BadLocationException e) {
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        }
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    }
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    /**
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     * Stores the data that the model is initially
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     * loaded with.
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     */
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    void storeInitialText() {
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        try {
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            initialText = getText(0, getLength());
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        } catch (BadLocationException e) {
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        }
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    }
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}