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