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/*******************************************************************************
* 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);
}
}
}
}
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