| /******************************************************************************* |
| * Copyright (c) 2001, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| *******************************************************************************/ |
| package org.eclipse.wst.sse.core.internal.undo; |
| |
| |
| |
| import org.eclipse.emf.common.command.AbstractCommand; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.wst.sse.core.internal.Logger; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; |
| |
| |
| public class StructuredTextCommandImpl extends AbstractCommand implements StructuredTextCommand { |
| |
| protected IDocument fDocument = null; // needed for updating the text |
| protected String fTextDeleted = null; |
| protected int fTextEnd = -1; |
| protected String fTextInserted = null; |
| protected int fTextStart = -1; |
| |
| /** |
| * We have no-arg constructor non-public to force document to be specfied. |
| * |
| */ |
| protected StructuredTextCommandImpl() { |
| super(); |
| } |
| |
| public StructuredTextCommandImpl(IDocument document) { |
| this(); |
| fDocument = document; // needed for updating the text |
| } |
| |
| public void execute() { |
| } |
| |
| /** |
| * getTextDeleted method comment. |
| */ |
| public java.lang.String getTextDeleted() { |
| return fTextDeleted; |
| } |
| |
| /** |
| * textEnd is the same as (textStart + textInserted.length()) |
| */ |
| public int getTextEnd() { |
| return fTextEnd; |
| } |
| |
| /** |
| * getTextInserted method comment. |
| */ |
| public java.lang.String getTextInserted() { |
| return fTextInserted; |
| } |
| |
| /** |
| * getTextStart method comment. |
| */ |
| public int getTextStart() { |
| return fTextStart; |
| } |
| |
| protected boolean prepare() { |
| return true; |
| } |
| |
| public void redo() { |
| if (fDocument instanceof IStructuredDocument) { |
| // note: one of the few places we programatically ignore read-only |
| // settings |
| ((IStructuredDocument) fDocument).replaceText(this, fTextStart, fTextDeleted.length(), fTextInserted, true); |
| } else { |
| try { |
| fDocument.replace(fTextStart, fTextDeleted.length(), fTextInserted); |
| } catch (BadLocationException e) { |
| // assumed impossible, for now |
| Logger.logException(e); |
| } |
| } |
| } |
| |
| /** |
| * setTextDeleted method comment. |
| */ |
| public void setTextDeleted(java.lang.String textDeleted) { |
| fTextDeleted = textDeleted; |
| } |
| |
| /** |
| * setTextEnd method comment. |
| */ |
| public void setTextEnd(int textEnd) { |
| fTextEnd = textEnd; |
| } |
| |
| /** |
| * setTextInserted method comment. |
| */ |
| public void setTextInserted(java.lang.String textInserted) { |
| fTextInserted = textInserted; |
| } |
| |
| /** |
| * setTextStart method comment. |
| */ |
| public void setTextStart(int textStart) { |
| fTextStart = textStart; |
| } |
| |
| public void undo() { |
| if (fDocument instanceof IStructuredDocument) { |
| // note: one of the few places we programatically ignore read-only |
| // settings |
| ((IStructuredDocument) fDocument).replaceText(this, fTextStart, fTextInserted.length(), fTextDeleted, true); |
| } else { |
| try { |
| fDocument.replace(fTextStart, fTextInserted.length(), fTextDeleted); |
| } catch (BadLocationException e) { |
| // assumed impossible, for now |
| Logger.logException(e); |
| } |
| } |
| } |
| } |