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/*******************************************************************************
* Copyright (c) 2000, 2005 QNX Software Systems 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:
* QNX Software Systems - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.model;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.core.model.IUsing;
/**
* <p>This operation adds a using declaration/directive to an existing translation unit.
*
* <p>Required Attributes:<ul>
* <li>Translation unit
* <li>using name - the name of the using to add
* </ul>
*/
public class CreateUsingOperation extends CreateElementInTUOperation {
/**
* The name of the using to be created.
*/
protected String fUsingName;
/**
* Whether it is a declaration or a directive.
*/
protected boolean fIsDirective;
/**
* When executed, this operation will add an include to the given translation unit.
*/
public CreateUsingOperation(String usingName, boolean isDirective, ITranslationUnit parentElement) {
super(parentElement);
fIsDirective = isDirective;
fUsingName = usingName;
}
/**
* @see CreateElementInCUOperation#generateResultHandle
*/
protected ICElement generateResultHandle() {
return getTranslationUnit().getUsing(fUsingName);
}
/**
* @see CreateElementInCUOperation#getMainTaskName
*/
public String getMainTaskName(){
return "operation.createUsingProgress"; //$NON-NLS-1$
}
/**
* Sets the correct position for the new using:<ul>
* <li> after the last using
* </ul>
* if no using
*/
protected void initializeDefaultPosition() {
try {
ITranslationUnit cu = getTranslationUnit();
IUsing[] usings = cu.getUsings();
if (usings.length > 0) {
createAfter(usings[usings.length - 1]);
return;
}
} catch (CModelException npe) {
}
}
/*
* TODO: Use the ASTRewrite once it is available.
*/
protected String generateElement(ITranslationUnit unit) throws CModelException {
StringBuffer sb = new StringBuffer();
sb.append("using "); //$NON-NLS-1$;
if (fIsDirective) {
sb.append("namespace "); //$NON-NLS-1$
}
sb.append(fUsingName);
sb.append(';');
sb.append(Util.LINE_SEPARATOR);
return sb.toString();
}
}
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