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

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