| /******************************************************************************* |
| * 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 org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.Tree; |
| |
| import org.eclipse.jface.action.IMenuListener; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.jface.util.Assert; |
| import org.eclipse.jface.viewers.IContentProvider; |
| import org.eclipse.jface.viewers.IOpenListener; |
| import org.eclipse.jface.viewers.OpenEvent; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchPartSite; |
| |
| import org.eclipse.jdt.core.IMember; |
| import org.eclipse.jdt.core.IType; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.util.JavaUIHelp; |
| import org.eclipse.jdt.internal.ui.viewsupport.DecoratingJavaLabelProvider; |
| import org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer; |
| |
| import org.eclipse.jdt.ui.JavaElementLabels; |
| import org.eclipse.jdt.ui.actions.OpenAction; |
| |
| public abstract class TypeHierarchyViewer extends ProblemTreeViewer { |
| |
| private OpenAction fOpen; |
| private HierarchyLabelProvider fLabelProvider; |
| |
| public TypeHierarchyViewer(Composite parent, IContentProvider contentProvider, TypeHierarchyLifeCycle lifeCycle, IWorkbenchPart part) { |
| super(new Tree(parent, SWT.SINGLE)); |
| |
| fLabelProvider= new HierarchyLabelProvider(lifeCycle); |
| |
| setLabelProvider(new DecoratingJavaLabelProvider(fLabelProvider, true)); |
| setUseHashlookup(true); |
| |
| setContentProvider(contentProvider); |
| setSorter(new HierarchyViewerSorter(lifeCycle)); |
| |
| fOpen= new OpenAction(part.getSite()); |
| addOpenListener(new IOpenListener() { |
| public void open(OpenEvent event) { |
| fOpen.run(); |
| } |
| }); |
| |
| JavaUIHelp.setHelp(this, IJavaHelpContextIds.TYPE_HIERARCHY_VIEW); |
| } |
| |
| public void setQualifiedTypeName(boolean on) { |
| if (on) { |
| fLabelProvider.setTextFlags(fLabelProvider.getTextFlags() | JavaElementLabels.T_POST_QUALIFIED); |
| } else { |
| fLabelProvider.setTextFlags(fLabelProvider.getTextFlags() & ~JavaElementLabels.T_POST_QUALIFIED); |
| } |
| refresh(); |
| } |
| |
| /** |
| * Attaches a contextmenu listener to the tree |
| */ |
| public void initContextMenu(IMenuListener menuListener, String popupId, IWorkbenchPartSite viewSite) { |
| MenuManager menuMgr= new MenuManager(); |
| menuMgr.setRemoveAllWhenShown(true); |
| menuMgr.addMenuListener(menuListener); |
| Menu menu= menuMgr.createContextMenu(getTree()); |
| getTree().setMenu(menu); |
| viewSite.registerContextMenu(popupId, menuMgr, this); |
| } |
| |
| /** |
| * Fills up the context menu with items for the hierarchy viewer |
| * Should be called by the creator of the context menu |
| */ |
| public void contributeToContextMenu(IMenuManager menu) { |
| } |
| |
| /** |
| * Set the member filter |
| */ |
| public void setMemberFilter(IMember[] memberFilter) { |
| TypeHierarchyContentProvider contentProvider= getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| contentProvider.setMemberFilter(memberFilter); |
| } |
| } |
| |
| /** |
| * Returns if method filtering is enabled. |
| */ |
| public boolean isMethodFiltering() { |
| TypeHierarchyContentProvider contentProvider= getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| return contentProvider.getMemberFilter() != null; |
| } |
| return false; |
| } |
| |
| public void setWorkingSetFilter(ViewerFilter filter) { |
| fLabelProvider.setFilter(filter); |
| TypeHierarchyContentProvider contentProvider= getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| contentProvider.setWorkingSetFilter(filter); |
| } |
| } |
| |
| /** |
| * Returns true if the hierarchy contains elements. Returns one of them |
| * With member filtering it is possible that no elements are visible |
| */ |
| public Object containsElements() { |
| TypeHierarchyContentProvider contentProvider= getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| Object[] elements= contentProvider.getElements(null); |
| if (elements.length > 0) { |
| return elements[0]; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns true if the hierarchy contains elements. Returns one of them |
| * With member filtering it is possible that no elements are visible |
| */ |
| public IType getTreeRootType() { |
| TypeHierarchyContentProvider contentProvider= getHierarchyContentProvider(); |
| if (contentProvider != null) { |
| Object[] elements= contentProvider.getElements(null); |
| if (elements.length > 0 && elements[0] instanceof IType) { |
| return (IType) elements[0]; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns true if the hierarchy contains element the element. |
| */ |
| public boolean isElementShown(Object element) { |
| return findItem(element) != null; |
| } |
| |
| /** |
| * Updates the content of this viewer: refresh and expanding the tree in the way wanted. |
| */ |
| public abstract void updateContent(boolean doExpand); |
| |
| /** |
| * Returns the title for the current view |
| */ |
| public abstract String getTitle(); |
| |
| /* |
| * @see StructuredViewer#setContentProvider |
| * Content provider must be of type TypeHierarchyContentProvider |
| */ |
| public void setContentProvider(IContentProvider cp) { |
| Assert.isTrue(cp instanceof TypeHierarchyContentProvider); |
| super.setContentProvider(cp); |
| } |
| |
| protected TypeHierarchyContentProvider getHierarchyContentProvider() { |
| return (TypeHierarchyContentProvider)getContentProvider(); |
| } |
| |
| } |