1/* 2 * Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24package com.sun.hotspot.igv.coordinator.actions; 25 26import com.sun.hotspot.igv.data.InputGraph; 27import com.sun.hotspot.igv.data.services.GraphViewer; 28import com.sun.hotspot.igv.data.services.InputGraphProvider; 29import com.sun.hotspot.igv.difference.Difference; 30import com.sun.hotspot.igv.util.LookupHistory; 31import org.openide.nodes.Node; 32import org.openide.util.Lookup; 33 34/** 35 * 36 * @author Thomas Wuerthinger 37 */ 38public class DiffGraphCookie implements Node.Cookie { 39 40 private InputGraph graph; 41 42 public DiffGraphCookie(InputGraph graph) { 43 this.graph = graph; 44 } 45 46 private InputGraph getCurrentGraph() { 47 InputGraphProvider graphProvider = LookupHistory.getLast(InputGraphProvider.class); 48 if (graphProvider != null) { 49 return graphProvider.getGraph(); 50 } 51 return null; 52 } 53 54 public boolean isPossible() { 55 return getCurrentGraph() != null; 56 } 57 58 public void openDiff() { 59 InputGraph other = getCurrentGraph(); 60 final GraphViewer viewer = Lookup.getDefault().lookup(GraphViewer.class); 61 if (viewer != null) { 62 InputGraph diffGraph = Difference.createDiffGraph(other, graph); 63 viewer.view(diffGraph, true); 64 } 65 } 66} 67