| /* |
| * Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * - Neither the name of Oracle nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /* |
| * This source code is provided to illustrate the usage of a given feature |
| * or technique and has been deliberately simplified. Additional steps |
| * required for a production-quality application, such as security checks, |
| * input validation and proper error handling, might not be present in |
| * this sample code. |
| */ |
| |
| |
| package com.sun.demo.scripting.jconsole; |
| |
| import javax.swing.text.*; |
| |
| /** This class implements a special type of document in which edits |
| * can only be performed at the end, from "mark" to the end of the |
| * document. This is used in ScriptShellPanel class as document for editor. |
| */ |
| public class EditableAtEndDocument extends PlainDocument { |
| |
| private static final long serialVersionUID = 5358116444851502167L; |
| private int mark; |
| |
| @Override |
| public void insertString(int offset, String text, AttributeSet a) |
| throws BadLocationException { |
| int len = getLength(); |
| super.insertString(len, text, a); |
| } |
| |
| @Override |
| public void remove(int offs, int len) throws BadLocationException { |
| int start = offs; |
| int end = offs + len; |
| |
| int markStart = mark; |
| int markEnd = getLength(); |
| |
| if ((end < markStart) || (start > markEnd)) { |
| // no overlap |
| return; |
| } |
| |
| // Determine interval intersection |
| int cutStart = Math.max(start, markStart); |
| int cutEnd = Math.min(end, markEnd); |
| super.remove(cutStart, cutEnd - cutStart); |
| } |
| |
| public void setMark() { |
| mark = getLength(); |
| } |
| |
| public String getMarkedText() throws BadLocationException { |
| return getText(mark, getLength() - mark); |
| } |
| |
| /** Used to reset the contents of this document */ |
| public void clear() { |
| try { |
| super.remove(0, getLength()); |
| setMark(); |
| } catch (BadLocationException e) { |
| } |
| } |
| } |