| /******************************************************************************* |
| * Copyright (c) 2009, 2010 Wind River Systems 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: |
| * Wind River Systems - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipe.debug.tests.viewer.model; |
| |
| import java.util.LinkedList; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IChildrenCountUpdate; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdateListener; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.TreeModelViewer; |
| import org.eclipse.jface.viewers.ILazyTreePathContentProvider; |
| import org.eclipse.jface.viewers.TreePath; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.swt.widgets.TreeItem; |
| import org.eclipse.swt.widgets.Widget; |
| |
| /** |
| * |
| */ |
| public class TreeModelViewerAutopopulateAgent implements IViewerUpdateListener { |
| |
| private TreeModelViewer fViewer; |
| |
| |
| public TreeModelViewerAutopopulateAgent(TreeModelViewer viewer) { |
| fViewer = viewer; |
| fViewer.addViewerUpdateListener(this); |
| } |
| |
| public void dispose() { |
| fViewer.removeViewerUpdateListener(this); |
| fViewer = null; |
| } |
| |
| public void updateComplete(IViewerUpdate update) { |
| if (update instanceof IChildrenCountUpdate) { |
| TreePath path = update.getElementPath(); |
| ILazyTreePathContentProvider contentProvider = (ILazyTreePathContentProvider) fViewer.getContentProvider(); |
| |
| Widget[] items = fViewer.testFindItems(update.getElement()); |
| for (int i = 0; i < items.length; i++) { |
| if ( path.equals(getTreePath(items[i])) ) { |
| int itemCount = getItemChildCount(items[i]); |
| for (int j = 0; j < itemCount; j++) { |
| contentProvider.updateElement(path, j); |
| } |
| } |
| } |
| } |
| } |
| |
| public void updateStarted(IViewerUpdate update) { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| public void viewerUpdatesBegin() { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| public void viewerUpdatesComplete() { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| private TreePath getTreePath(Widget w) { |
| if (w instanceof TreeItem) { |
| TreeItem item = (TreeItem)w; |
| LinkedList segments = new LinkedList(); |
| while (item != null) { |
| Object segment = item.getData(); |
| Assert.isNotNull(segment); |
| segments.addFirst(segment); |
| item = item.getParentItem(); |
| } |
| return new TreePath(segments.toArray()); |
| } |
| return TreePath.EMPTY; |
| } |
| |
| private int getItemChildCount(Widget w) { |
| if (w instanceof Tree) { |
| return ((Tree)w).getItemCount(); |
| } else if (w instanceof TreeItem) { |
| return ((TreeItem)w).getItemCount(); |
| } |
| return 0; |
| } |
| } |