| /******************************************************************************* |
| * 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.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.jface.util.Assert; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.ITypeHierarchy; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.ui.IWorkingCopyProvider; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| |
| /** |
| * Content provider used for the method view. |
| * Allows also seeing methods inherited from base classes. |
| */ |
| public class MethodsContentProvider implements IStructuredContentProvider, IWorkingCopyProvider { |
| |
| private static final Object[] NO_ELEMENTS = new Object[0]; |
| |
| private boolean fShowInheritedMethods; |
| private TypeHierarchyLifeCycle fHierarchyLifeCycle; |
| private TableViewer fViewer; |
| |
| public MethodsContentProvider(TypeHierarchyLifeCycle lifecycle) { |
| fHierarchyLifeCycle= lifecycle; |
| fShowInheritedMethods= false; |
| fViewer= null; |
| } |
| |
| /** |
| * Turn on / off showing of inherited methods |
| */ |
| public void showInheritedMethods(boolean show) { |
| if (show != fShowInheritedMethods) { |
| fShowInheritedMethods= show; |
| if (fViewer != null) { |
| fViewer.refresh(); |
| } |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see IStructuredContentProvider#providesWorkingCopies() |
| */ |
| public boolean providesWorkingCopies() { |
| return true; |
| } |
| |
| /** |
| * Returns true if inherited methods are shown |
| */ |
| public boolean isShowInheritedMethods() { |
| return fShowInheritedMethods; |
| } |
| |
| |
| private void addAll(Object[] arr, List res) { |
| if (arr != null) { |
| for (int j= 0; j < arr.length; j++) { |
| res.add(arr[j]); |
| } |
| } |
| } |
| |
| /* |
| * @see IStructuredContentProvider#getElements |
| */ |
| public Object[] getElements(Object element) { |
| if (element instanceof IType) { |
| IType type= (IType)element; |
| |
| List res= new ArrayList(); |
| try { |
| ITypeHierarchy hierarchy= fHierarchyLifeCycle.getHierarchy(); |
| if (fShowInheritedMethods && hierarchy != null) { |
| IType[] allSupertypes= hierarchy.getAllSupertypes(type); |
| // sort in from last to first: elements with same name |
| // will show up in hierarchy order |
| for (int i= allSupertypes.length - 1; i >= 0; i--) { |
| IType superType= allSupertypes[i]; |
| if (superType.exists()) { |
| addAll(superType.getMethods(), res); |
| addAll(superType.getInitializers(), res); |
| addAll(superType.getFields(), res); |
| } |
| } |
| } |
| if (type.exists()) { |
| addAll(type.getMethods(), res); |
| addAll(type.getInitializers(), res); |
| addAll(type.getFields(), res); |
| } |
| } catch (JavaModelException e) { |
| JavaPlugin.log(e); |
| } |
| return res.toArray(); |
| } |
| return NO_ELEMENTS; |
| } |
| |
| |
| /* |
| * @see IContentProvider#inputChanged |
| */ |
| public void inputChanged(Viewer input, Object oldInput, Object newInput) { |
| Assert.isTrue(input instanceof TableViewer); |
| |
| fViewer= (TableViewer) input; |
| } |
| |
| /* |
| * @see IContentProvider#dispose |
| */ |
| public void dispose() { |
| } |
| |
| } |