| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.typehierarchy; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.swt.widgets.Composite; |
| |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| import org.eclipse.jdt.core.Flags; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.ITypeHierarchy; |
| |
| /** |
| * A TypeHierarchyViewer that looks like the type hierarchy view of VA/Java: |
| * Starting form Object down to the element in focus, then all subclasses from |
| * this element. |
| * Used by the TypeHierarchyViewPart which has to provide a TypeHierarchyLifeCycle |
| * on construction (shared type hierarchy) |
| */ |
| public class TraditionalHierarchyViewer extends TypeHierarchyViewer { |
| |
| public TraditionalHierarchyViewer(Composite parent, TypeHierarchyLifeCycle lifeCycle, IWorkbenchPart part) { |
| super(parent, new TraditionalHierarchyContentProvider(lifeCycle), lifeCycle, part); |
| } |
| |
| /* |
| * @see TypeHierarchyViewer#getTitle |
| */ |
| public String getTitle() { |
| if (isMethodFiltering()) { |
| return TypeHierarchyMessages.TraditionalHierarchyViewer_filtered_title; |
| } else { |
| return TypeHierarchyMessages.TraditionalHierarchyViewer_title; |
| } |
| } |
| |
| /* |
| * @see TypeHierarchyViewer#updateContent |
| */ |
| public void updateContent(boolean expand) { |
| getTree().setRedraw(false); |
| refresh(); |
| |
| if (expand) { |
| TraditionalHierarchyContentProvider contentProvider= (TraditionalHierarchyContentProvider) getContentProvider(); |
| int expandLevel= contentProvider.getExpandLevel(); |
| if (isMethodFiltering()) { |
| expandLevel++; |
| } |
| expandToLevel(expandLevel); |
| } |
| getTree().setRedraw(true); |
| } |
| |
| /** |
| * Content provider for the 'traditional' type hierarchy. |
| */ |
| public static class TraditionalHierarchyContentProvider extends TypeHierarchyContentProvider { |
| |
| |
| public TraditionalHierarchyContentProvider(TypeHierarchyLifeCycle provider) { |
| super(provider); |
| } |
| |
| public int getExpandLevel() { |
| ITypeHierarchy hierarchy= getHierarchy(); |
| if (hierarchy != null) { |
| IType input= hierarchy.getType(); |
| if (input != null) { |
| return getDepth(hierarchy, input) + 2; |
| } else { |
| return 5; |
| } |
| } |
| return 2; |
| } |
| |
| private int getDepth(ITypeHierarchy hierarchy, IType input) { |
| int count= 0; |
| IType superType= hierarchy.getSuperclass(input); |
| while (superType != null) { |
| count++; |
| superType= hierarchy.getSuperclass(superType); |
| } |
| return count; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyContentProvider#getRootTypes(java.util.List) |
| */ |
| protected final void getRootTypes(List res) { |
| ITypeHierarchy hierarchy= getHierarchy(); |
| if (hierarchy != null) { |
| IType input= hierarchy.getType(); |
| if (input == null) { |
| IType[] classes= hierarchy.getRootClasses(); |
| for (int i= 0; i < classes.length; i++) { |
| res.add(classes[i]); |
| } |
| IType[] interfaces= hierarchy.getRootInterfaces(); |
| for (int i= 0; i < interfaces.length; i++) { |
| res.add(interfaces[i]); |
| } |
| } else { |
| if (Flags.isInterface(hierarchy.getCachedFlags(input))) { |
| res.add(input); |
| } else { |
| IType[] roots= hierarchy.getRootClasses(); |
| for (int i= 0; i < roots.length; i++) { |
| if (isObject(roots[i])) { |
| res.add(roots[i]); |
| return; |
| } |
| } |
| res.addAll(Arrays.asList(roots)); // something wrong with the hierarchy |
| } |
| } |
| } |
| } |
| |
| /* |
| * @see TypeHierarchyContentProvider.getTypesInHierarchy |
| */ |
| protected final void getTypesInHierarchy(IType type, List res) { |
| ITypeHierarchy hierarchy= getHierarchy(); |
| if (hierarchy != null) { |
| IType[] types= hierarchy.getSubtypes(type); |
| if (isObject(type)) { |
| for (int i= 0; i < types.length; i++) { |
| IType curr= types[i]; |
| if (!isAnonymous(curr)) { // no anonyous classes on 'Object' -> will be children of interface |
| res.add(curr); |
| } |
| } |
| } else { |
| boolean isHierarchyOnType= (hierarchy.getType() != null); |
| boolean isClass= !Flags.isInterface(hierarchy.getCachedFlags(type)); |
| if (isClass || isHierarchyOnType) { |
| for (int i= 0; i < types.length; i++) { |
| res.add(types[i]); |
| } |
| } else { |
| for (int i= 0; i < types.length; i++) { |
| IType curr= types[i]; |
| // no classes implementing interfaces, only if anonymous |
| if (Flags.isInterface(hierarchy.getCachedFlags(curr)) || isAnonymous(curr)) { |
| res.add(curr); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| protected IType getParentType(IType type) { |
| ITypeHierarchy hierarchy= getHierarchy(); |
| if (hierarchy != null) { |
| return hierarchy.getSuperclass(type); |
| // dont handle interfaces |
| } |
| return null; |
| } |
| |
| } |
| } |