bundles/org.simantics.structural.ui/src/org/simantics/structural/ui/compositeViewer/CompositeViewer.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.structural.ui.compositeViewer;
  13
  14 import org.eclipse.core.runtime.IProgressMonitor;
  15 import org.eclipse.core.runtime.IStatus;
  16 import org.eclipse.core.runtime.Status;
  17 import org.eclipse.core.runtime.jobs.Job;
  18 import org.eclipse.swt.widgets.Composite;
  19 import org.simantics.Simantics;
  20 import org.simantics.db.procedure.Listener;
  21 import org.simantics.graphviz.Graph;
  22 import org.simantics.graphviz.ui.GraphvizComponent;
  23 import org.simantics.ui.workbench.ResourceEditorPart;
  24
  25 public class CompositeViewer extends ResourceEditorPart {
  26
  27     GraphvizComponent component;
  28     private boolean disposed = false;
  29
  30     @Override
  31     public void createPartControl(Composite parent) {
  32         component = new GraphvizComponent(parent, 0);
  33         component.waitUntilInitialized();
  34         readGraph();
  35     }
  36
  37     private void readGraph() {
  38         Simantics.getSession().asyncRequest(new CreateCompositeGraph(
  39                 getResourceInput().getResource()),
  40                 new Listener<Graph>() {
  41
  42             @Override
  43             public void exception(Throwable e) {
  44                 e.printStackTrace();
  45             }
  46
  47             @Override
  48             public void execute(final Graph graph) {
  49                 Job job = new Job("Layout composite graph") {
  50
  51                     @Override
  52                     protected IStatus run(IProgressMonitor monitor) {
  53                         component.setGraph(graph, "neato");
  54                         return Status.OK_STATUS;
  55                     }
  56
  57                 };
  58                 job.schedule();
  59             }
  60
  61             @Override
  62             public boolean isDisposed() {
  63                 return disposed;
  64             }
  65         });
  66     }
  67
  68     @Override
  69     public void setFocus() {
  70         if (component != null && !component.isDisposed()) {
  71             component.setFocus();
  72             component.requestFocus();
  73         }
  74     }
  75
  76     @Override
  77     public void dispose() {
  78         disposed  = true;
  79     }
  80
  81 }