bundles/org.simantics.annotation.ui/src/org/simantics/annotation/ui/diagram/handlers/NewAnnotation.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.annotation.ui.diagram.handlers;
  13
  14 import java.util.Collection;
  15
  16 import org.eclipse.core.commands.AbstractHandler;
  17 import org.eclipse.core.commands.ExecutionEvent;
  18 import org.eclipse.core.commands.ExecutionException;
  19 import org.eclipse.jface.viewers.ISelection;
  20 import org.eclipse.ui.handlers.HandlerUtil;
  21 import org.simantics.Simantics;
  22 import org.simantics.annotation.ui.AnnotationUtils;
  23 import org.simantics.db.ReadGraph;
  24 import org.simantics.db.Resource;
  25 import org.simantics.db.common.request.ReadRequest;
  26 import org.simantics.db.exception.DatabaseException;
  27 import org.simantics.db.layer0.variable.Variable;
  28 import org.simantics.db.layer0.variable.Variables;
  29 import org.simantics.diagram.content.ConnectionUtil;
  30 import org.simantics.diagram.function.PredefinedVariables;
  31 import org.simantics.modeling.ModelingResources;
  32 import org.simantics.ui.utils.ResourceAdaptionUtils;
  33 import org.simantics.utils.ui.ErrorLogger;
  34
  35 public class NewAnnotation extends AbstractHandler {
  36         Resource anno = null;
  37         Resource strConnection = null;
  38         Resource model = null;
  39
  40         @Override
  41     public Object execute(ExecutionEvent event) throws ExecutionException {
  42
  43                 ISelection selection = HandlerUtil.getCurrentSelection(event);
  44         final Resource parent = ResourceAdaptionUtils.toSingleResource(selection);
  45         if(parent == null) return null;
  46
  47         try {
  48
  49                         Simantics.getSession().syncRequest(new ReadRequest() {
  50
  51                                 @Override
  52                                 public void run(ReadGraph graph) throws DatabaseException {
  53
  54                                         Variable parentV = Variables.getVariable(graph, parent);
  55
  56                                         model = Variables.getModel(graph, parentV);
  57
  58                                         ConnectionUtil cu = new ConnectionUtil(graph);
  59                                 Collection<Resource> connectors = cu.getTerminalConnectors(parent, null);
  60                                 Resource connection = null;
  61                                 for (Resource connector : connectors) {
  62                                     connection = ConnectionUtil.tryGetConnection(graph, connector);
  63                                     if (connection != null)
  64                                         break;
  65                                 }
  66                                 if (connection == null)
  67                                         return;
  68
  69                                 ModelingResources MOD = ModelingResources.getInstance(graph);
  70                                 strConnection = graph.getPossibleObject(connection, MOD.DiagramConnectionToConnection);
  71                                 if (strConnection == null)
  72                                         return;
  73
  74                                 anno = PredefinedVariables.getAnnotation(graph, parent);
  75                                 }
  76                         });
  77
  78                 if (strConnection == null)
  79                         return null;
  80                 if (anno == null)
  81                     AnnotationUtils.newAnnotation(parent, model);
  82
  83                 } catch (DatabaseException e) {
  84                         ErrorLogger.defaultLogError(e);
  85                 }
  86
  87         return null;
  88     }
  89
  90 }