/*******************************************************************************
* Copyright (c) 2001, 2009 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:
* Rational Software - initial implementation
* Anton Leherbauer (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.ui.viewsupport;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.IDeclaration;
import org.eclipse.cdt.core.model.IField;
import org.eclipse.cdt.core.model.IMember;
import org.eclipse.cdt.core.model.ISourceReference;
import org.eclipse.cdt.core.parser.ast.ASTAccessVisibility;
/**
* Filter for the methods viewer.
* Changing a filter property does not trigger a refiltering of the viewer
*/
public class MemberFilter extends ViewerFilter{
public static final int FILTER_NONPUBLIC= 1;
public static final int FILTER_STATIC= 2;
public static final int FILTER_FIELDS= 4;
public static final int FILTER_INACTIVE= 0x10;
/** @deprecated Unsupported filter constant */
@Deprecated
public static final int FILTER_LOCALTYPES= 8;
private int fFilterProperties;
/**
* Modifies filter and add a property to filter for
*/
public final void addFilter(int filter) {
fFilterProperties |= filter;
}
/**
* Modifies filter and remove a property to filter for
*/
public final void removeFilter(int filter) {
fFilterProperties &= (-1 ^ filter);
}
/**
* Tests if a property is filtered
*/
public final boolean hasFilter(int filter) {
return (fFilterProperties & filter) != 0;
}
/*
* @see ViewerFilter@isFilterProperty
*/
public boolean isFilterProperty(Object element, Object property) {
return false;
}
/*
* @see ViewerFilter@select
*/
@Override
public boolean select(Viewer viewer, Object parentElement, Object element) {
if(element instanceof IDeclaration){
try {
IDeclaration declaration = (IDeclaration) element;
if (hasFilter(FILTER_STATIC) && (declaration.isStatic()) ) {
return false;
}
if (element instanceof IMember) {
IMember member= (IMember)element;
if (hasFilter(FILTER_NONPUBLIC) && (member.getVisibility() != ASTAccessVisibility.PUBLIC)) {
return false;
}
if (hasFilter(FILTER_FIELDS) && element instanceof IField) {
return false;
}
}
} catch (CModelException e) {
// ignore
}
}
if (hasFilter(FILTER_INACTIVE)) {
if (element instanceof ISourceReference && !((ISourceReference) element).isActive()) {
return false;
}
}
return true;
}
}