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.utils.DataContainer;
  26 import org.simantics.utils.threads.ThreadUtils;
  27
  28 public class DiagramViewerLoadJob extends DatabaseJob {
  29
  30     private static final boolean PROFILE = false;
  31     private DiagramViewer        viewer;
  32
  33     public DiagramViewerLoadJob(DiagramViewer viewer) {
  34         super(Messages.DiagramViewerLoadJob_LoadDiagram);
  35         setUser(true);
  36         this.viewer = viewer;
  37     }
  38
  39     @Override
  40     protected IStatus run(final IProgressMonitor monitor) {
  41         final SubMonitor mon = SubMonitor.convert(monitor, Messages.DiagramViewerLoadJob_MonitorLoadingDiagram, 200);
  42
  43         try {
  44             Object task = BEGIN("DV.loadDiagram"); //$NON-NLS-1$
  45             final IDiagram diagram = viewer.loadDiagram(mon.newChild(100), viewer.diagramResource);
  46             if (diagram == null)
  47                 return Status.CANCEL_STATUS;
  48             END(task);
  49
  50             // Start an activation for the input resource.
  51             // This will activate mapping if necessary.
  52             task = BEGIN("DV.performActivation"); //$NON-NLS-1$
  53             viewer.performActivation(mon.newChild(50));
  54             END(task);
  55
  56             // Wait for load completion in AWT thread
  57             ThreadUtils.syncExec(viewer.canvasContext.getThreadAccess(), new Runnable() {
  58                 @Override
  59                 public void run() {
  60                     setThread(viewer.canvasContext.getThreadAccess().getThread());
  61                     mon.setTaskName(Messages.DiagramViewerLoadJob_MonitorFinalizeDiagramLoading);
  62
  63                     try {
  64                         Object task = BEGIN("DV.beforeSetDiagram"); //$NON-NLS-1$
  65                         viewer.beforeSetDiagram(diagram);
  66                         mon.worked(10);
  67                         END(task);
  68
  69                         task = BEGIN("DV.setDiagramHint"); //$NON-NLS-1$
  70                         mon.subTask(Messages.DiagramViewerLoadJob_SetDiagram);
  71                         DataContainer<IDiagram> diagramContainer = viewer.sourceDiagramContainer;
  72                         if (diagramContainer != null)
  73                             diagramContainer.set( diagram );
  74                         viewer.sourceDiagram = diagram;
  75                         viewer.canvasContext.getDefaultHintContext().setHint(DiagramHints.KEY_DIAGRAM, diagram);
  76                         mon.worked(10);
  77                         END(task);
  78
  79                         viewer.selectionProvider.fireSelection(Collections.emptyList());
  80
  81                         // Zoom to fit if no previous view transform is available
  82                         task = BEGIN("DV.scheduleZoomToFit"); //$NON-NLS-1$
  83                         viewer.scheduleZoomToFit(diagram);
  84                         mon.worked(10);
  85                         END(task);
  86
  87                         task = BEGIN("DV.onCreated"); //$NON-NLS-1$
  88                         mon.subTask(""); //$NON-NLS-1$
  89                         viewer.onCreated();
  90                         mon.worked(10);
  91                         END(task);
  92
  93                         task = BEGIN("DV.applyEditorState"); //$NON-NLS-1$
  94                         mon.subTask(Messages.DiagramViewerLoadJob_ApplyEditorState);
  95                         viewer.applyEditorState(viewer.editorState, viewer.canvasContext);
  96                         mon.worked(10);
  97                         END(task);
  98
  99                         task = BEGIN("DV.activateUiContexts"); //$NON-NLS-1$
 100                         viewer.contextUtil.inContextThread(new Runnable() {
 101                             @Override
 102                             public void run() {
 103                                 if (!viewer.disposed)
 104                                     viewer.activateUiContexts(viewer.contextUtil);
 105                                 viewer = null;
 106                             }
 107                         });
 108                         END(task);
 109                     } catch (Throwable t) {
 110                         viewer = null;
 111                     }
 112                 }
 113             });
 114
 115             return Status.OK_STATUS;
 116         } catch (CancelTransactionException e) {
 117             monitor.done();
 118             viewer = null;
 119             return new Status(IStatus.CANCEL, Activator.PLUGIN_ID, Messages.DiagramViewerLoadJob_ActivatorDiagramLoadingCancelled, e);
 120         } catch (Throwable t) {
 121             monitor.done();
 122             viewer = null;
 123             return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.DiagramViewerLoadJob_ActivatorDiagramLoadingFailed, t);
 124         }
 125     }
 126
 127     protected static Object BEGIN(String name) {
 128         if (PROFILE) {
 129             //return ThreadLog.BEGIN(name);
 130         }
 131         return null;
 132     }
 133
 134     protected static void END(Object task) {
 135         if (PROFILE) {
 136             //((Task) task).end();
 137         }
 138     }
 139 }