core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/filters/NonCProjectsFilter.java

/*******************************************************************************
 * Copyright (c) 2000, 2008 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Anton Leherbauer (Wind River Systems)
 *******************************************************************************/
package org.eclipse.cdt.internal.ui.filters;

import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.core.resources.IProject;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;

/**
 * Filters (open) non-C projects.
 */
public class NonCProjectsFilter extends ViewerFilter {

	/*
	 * @see ViewerFilter
	 */
	@Override
	public boolean select(Viewer viewer, Object parent, Object element) {
		if (element instanceof ICProject) {
			return true;
		} else if (element instanceof IProject) {
			IProject project = (IProject) element;
			if (!project.isOpen()) {
				return true;
			}
			if (CoreModel.hasCNature(project)) {
				return true;
			}
			return false;
		}
		return true;
	}
}