/*******************************************************************************
 * Copyright (c) 2007, 2011 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
 *******************************************************************************/
package org.eclipse.jdt.internal.ui.text.java;

import org.eclipse.swt.graphics.Image;

import org.eclipse.core.runtime.Assert;

import org.eclipse.jface.viewers.StyledString;

import org.eclipse.jdt.core.CompletionProposal;

import org.eclipse.jdt.ui.text.java.JavaContentAssistInvocationContext;


/**
 * Java completion proposal for {@link CompletionProposal#FIELD_REF_WITH_CASTED_RECEIVER}.
 *
 * @since 3.4
 */
public class JavaFieldWithCastedReceiverCompletionProposal extends JavaCompletionProposal {

	private CompletionProposal fProposal;

	public JavaFieldWithCastedReceiverCompletionProposal(String completion, int start, int length, Image image, StyledString label, int relevance, boolean inJavadoc, JavaContentAssistInvocationContext invocationContext, CompletionProposal proposal) {
		super(completion, start, length, image, label, relevance, inJavadoc, invocationContext);
		Assert.isNotNull(proposal);
		fProposal= proposal;
	}

	/*
	 * @see org.eclipse.jdt.internal.ui.text.java.AbstractJavaCompletionProposal#isPrefix(java.lang.String, java.lang.String)
	 */
	@Override
	protected boolean isPrefix(String prefix, String string) {
		if (prefix != null)
			prefix= prefix.substring(fProposal.getReceiverEnd() - fProposal.getReceiverStart() + 1);
		return super.isPrefix(prefix, string);
	}

}