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 java.util.Collections;
  15
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17 import org.eclipse.core.runtime.IStatus;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.core.runtime.SubMonitor;
  20 import org.simantics.DatabaseJob;
  21 import org.simantics.db.exception.CancelTransactionException;
  22 import org.simantics.g2d.diagram.DiagramHints;
  23 import org.simantics.g2d.diagram.IDiagram;
  24 import org.simantics.modeling.ui.Activator;
  25 import org.simantics.threadlog.Task;
  26 import org.simantics.threadlog.ThreadLog;
  27 import org.simantics.utils.DataContainer;
  28 import org.simantics.utils.threads.ThreadUtils;
  29
  30 public class DiagramViewerLoadJob extends DatabaseJob {
  31
  32     private static final boolean PROFILE = false;
  33     private DiagramViewer        viewer;
  34
  35     public DiagramViewerLoadJob(DiagramViewer viewer) {
  36         super("Load Diagram");
  37         setUser(true);
  38         this.viewer = viewer;
  39     }
  40
  41     @Override
  42     protected IStatus run(final IProgressMonitor monitor) {
  43         final SubMonitor mon = SubMonitor.convert(monitor, "Loading Diagram", 200);
  44
  45         try {
  46             Object task = BEGIN("DV.loadDiagram");
  47             System.err.println("foo1");
  48             final IDiagram diagram = viewer.loadDiagram(mon.newChild(100), viewer.diagramResource);
  49             if (diagram == null)
  50                 return Status.CANCEL_STATUS;
  51             END(task);
  52             System.err.println("foo2");
  53
  54             // Start an activation for the input resource.
  55             // This will activate mapping if necessary.
  56             task = BEGIN("DV.performActivation");
  57             viewer.performActivation(mon.newChild(50));
  58             END(task);
  59
  60             // Wait for load completion in AWT thread
  61             ThreadUtils.syncExec(viewer.canvasContext.getThreadAccess(), new Runnable() {
  62                 @Override
  63                 public void run() {
  64                     setThread(viewer.canvasContext.getThreadAccess().getThread());
  65                     mon.setTaskName("Finalize Diagram Loading");
  66
  67                     try {
  68                         Object task = BEGIN("DV.beforeSetDiagram");
  69                         viewer.beforeSetDiagram(diagram);
  70                         mon.worked(10);
  71                         END(task);
  72
  73                         task = BEGIN("DV.setDiagramHint");
  74                         mon.subTask("Set Diagram");
  75                         DataContainer<IDiagram> diagramContainer = viewer.sourceDiagramContainer;
  76                         if (diagramContainer != null)
  77                             diagramContainer.set( diagram );
  78                         viewer.sourceDiagram = diagram;
  79                         viewer.canvasContext.getDefaultHintContext().setHint(DiagramHints.KEY_DIAGRAM, diagram);
  80                         mon.worked(10);
  81                         END(task);
  82
  83                         viewer.selectionProvider.fireSelection(Collections.emptyList());
  84
  85                         // Zoom to fit if no previous view transform is available
  86                         task = BEGIN("DV.scheduleZoomToFit");
  87                         viewer.scheduleZoomToFit(diagram);
  88                         mon.worked(10);
  89                         END(task);
  90
  91                         task = BEGIN("DV.onCreated");
  92                         mon.subTask("");
  93                         viewer.onCreated();
  94                         mon.worked(10);
  95                         END(task);
  96
  97                         task = BEGIN("DV.applyEditorState");
  98                         mon.subTask("Apply editor state");
  99                         viewer.applyEditorState(viewer.editorState, viewer.canvasContext);
 100                         mon.worked(10);
 101                         END(task);
 102
 103                         task = BEGIN("DV.activateUiContexts");
 104                         viewer.contextUtil.inContextThread(new Runnable() {
 105                             @Override
 106                             public void run() {
 107                                 if (!viewer.disposed)
 108                                     viewer.activateUiContexts(viewer.contextUtil);
 109                                 viewer = null;
 110                             }
 111                         });
 112                         END(task);
 113                     } catch (Throwable t) {
 114                         viewer = null;
 115                     }
 116                 }
 117             });
 118
 119             return Status.OK_STATUS;
 120         } catch (CancelTransactionException e) {
 121             monitor.done();
 122             viewer = null;
 123             return new Status(IStatus.CANCEL, Activator.PLUGIN_ID, "Diagram loading was cancelled.", e);
 124         } catch (Throwable t) {
 125             monitor.done();
 126             viewer = null;
 127             return new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Diagram loading failed, see exception for details.", t);
 128         }
 129     }
 130
 131     protected static Object BEGIN(String name) {
 132         if (PROFILE) {
 133             return ThreadLog.BEGIN(name);
 134         }
 135         return null;
 136     }
 137
 138     protected static void END(Object task) {
 139         if (PROFILE) {
 140             ((Task) task).end();
 141         }
 142     }
 143 }