| /******************************************************************************* |
| * Copyright (c) 2000, 2016 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 |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.typehierarchy; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.List; |
| |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.TreeItem; |
| |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.ITypeHierarchy; |
| |
| /** |
| * A viewer including the content provider for the supertype hierarchy. |
| * Used by the TypeHierarchyViewPart which has to provide a TypeHierarchyLifeCycle |
| * on construction (shared type hierarchy) |
| */ |
| public class SuperTypeHierarchyViewer extends TypeHierarchyViewer { |
| |
| public SuperTypeHierarchyViewer(Composite parent, TypeHierarchyLifeCycle lifeCycle) { |
| super(parent, new SuperTypeHierarchyContentProvider(lifeCycle), lifeCycle); |
| } |
| |
| /* |
| * @see TypeHierarchyViewer#updateContent |
| */ |
| @Override |
| public void updateContent(boolean expand) { |
| getTree().setRedraw(false); |
| refresh(); |
| if (expand) { |
| HashSet<Object> visited= new HashSet<>(); |
| TreeItem[] rootNodes= getTree().getItems(); |
| for (TreeItem rootNode : rootNodes) { |
| expandNode(rootNode, visited); |
| } |
| } |
| getTree().setRedraw(true); |
| } |
| |
| private void expandNode(TreeItem treeItem, HashSet<Object> visited) { |
| internalExpandToLevel(treeItem, 1); |
| visited.add(treeItem.getData()); |
| for (TreeItem child : treeItem.getItems()) { |
| if (!visited.contains(child.getData())) { |
| expandNode(child, visited); |
| } |
| } |
| } |
| |
| /* |
| * Content provider for the supertype hierarchy |
| */ |
| public static class SuperTypeHierarchyContentProvider extends TypeHierarchyContentProvider { |
| public SuperTypeHierarchyContentProvider(TypeHierarchyLifeCycle lifeCycle) { |
| super(lifeCycle); |
| } |
| |
| @Override |
| protected final void getTypesInHierarchy(IType type, List<IType> res) { |
| ITypeHierarchy hierarchy= getHierarchy(); |
| if (hierarchy != null) { |
| IType[] types= hierarchy.getSupertypes(type); |
| res.addAll(Arrays.asList(types)); |
| } |
| } |
| |
| @Override |
| protected IType getParentType(IType type) { |
| // cant handle |
| return null; |
| } |
| |
| } |
| |
| } |