bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewerLoadJob.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * 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.modeling.ui.diagramEditor;
  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.SubMonitor;
  18 import org.simantics.DatabaseJob;
  19 import org.simantics.db.exception.CancelTransactionException;
  20 import org.simantics.g2d.diagram.DiagramHints;
  21 import org.simantics.g2d.diagram.IDiagram;
  22 import org.simantics.modeling.ui.Activator;
  23 import org.simantics.utils.DataContainer;
  24 import org.simantics.utils.threads.ThreadUtils;
  25
  26 public class DiagramViewerLoadJob extends DatabaseJob {
  27
  28     private static final boolean PROFILE = false;
  29     private DiagramViewer        viewer;
  30
  31     public DiagramViewerLoadJob(DiagramViewer viewer) {
  32         super("Load Diagram");
  33         setUser(true);
  34         this.viewer = viewer;
  35     }
  36
  37     @Override
  38     protected IStatus run(final IProgressMonitor monitor) {
  39         final SubMonitor mon = SubMonitor.convert(monitor, "Loading Diagram", 200);
  40
  41         try {
  42             Object task = BEGIN("DV.loadDiagram");
  43             final IDiagram diagram = viewer.loadDiagram(mon.newChild(100), viewer.diagramResource);
  44             if (diagram == null)
  45                 return Status.CANCEL_STATUS;
  46             END(task);
  47
  48             // Start an activation for the input resource.
  49             // This will activate mapping if necessary.
  50             task = BEGIN("DV.performActivation");
  51             viewer.performActivation(mon.newChild(50));
  52             END(task);
  53
  54             // Wait for load completion in AWT thread
  55             ThreadUtils.syncExec(viewer.canvasContext.getThreadAccess(), new Runnable() {
  56                 @Override
  57                 public void run() {
  58                     setThread(viewer.canvasContext.getThreadAccess().getThread());
  59                     mon.setTaskName("Finalize Diagram Loading");
  60
  61                     try {
  62                         Object task = BEGIN("DV.beforeSetDiagram");
  63                         viewer.beforeSetDiagram(diagram);
  64                         mon.worked(10);
  65                         END(task);
  66
  67                         task = BEGIN("DV.setDiagramHint");
  68                         mon.subTask("Set Diagram");
  69                         DataContainer<IDiagram> diagramContainer = viewer.sourceDiagramContainer;
  70                         if (diagramContainer != null)
  71                             diagramContainer.set( diagram );
  72                         viewer.sourceDiagram = diagram;
  73                         viewer.canvasContext.getDefaultHintContext().setHint(DiagramHints.KEY_DIAGRAM, diagram);
  74                         mon.worked(10);
  75                         END(task);
  76
  77                         // Zoom to fit if no previous view transform is available
  78                         task = BEGIN("DV.scheduleZoomToFit");
  79                         viewer.scheduleZoomToFit(diagram);
  80                         mon.worked(10);
  81                         END(task);
  82
  83                         task = BEGIN("DV.onCreated");
  84                         mon.subTask("");
  85                         viewer.onCreated();
  86                         mon.worked(10);
  87                         END(task);
  88
  89                         task = BEGIN("DV.applyEditorState");
  90                         mon.subTask("Apply editor state");
  91                         viewer.applyEditorState(viewer.editorState, viewer.canvasContext);
  92                         mon.worked(10);
  93                         END(task);
  94
  95                         task = BEGIN("DV.activateUiContexts");
  96                         viewer.contextUtil.inContextThread(new Runnable() {
  97                             @Override
  98                             public void run() {
  99                                 if (!viewer.disposed)
 100                                     viewer.activateUiContexts(viewer.contextUtil);
 101                                 viewer = null;
 102                             }
 103                         });
 104                         END(task);
 105                     } catch (Throwable t) {
 106                         viewer = null;
 107                     }
 108                 }
 109             });
 110
 111             return Status.OK_STATUS;
 112         } catch (CancelTransactionException e) {
 113             monitor.done();
 114             viewer = null;
 115             return new Status(IStatus.CANCEL, Activator.PLUGIN_ID, "Diagram loading was cancelled.", e);
 116         } catch (Throwable t) {
 117             monitor.done();
 118             viewer = null;
 119             return new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Diagram loading failed, see exception for details.", t);
 120         }
 121     }
 122
 123     protected static Object BEGIN(String name) {
 124         if (PROFILE) {
 125             //return ThreadLog.BEGIN(name);
 126         }
 127         return null;
 128     }
 129
 130     protected static void END(Object task) {
 131         if (PROFILE) {
 132             //((Task) task).end();
 133         }
 134     }
 135 }