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

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