gerrit.simantics Code Review - simantics/sysdyn.git/blob

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 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.jfreechart.chart.properties;\r
  13 \r
  14 import org.eclipse.jface.viewers.ISelection;\r
  15 import org.simantics.db.ReadGraph;\r
  16 import org.simantics.db.Resource;\r
  17 import org.simantics.db.exception.DatabaseException;\r
  18 import org.simantics.db.layer0.variable.Variable;\r
  19 import org.simantics.db.request.Read;\r
  20 import org.simantics.layer0.Layer0;\r
  21 import org.simantics.modeling.ModelingResources;\r
  22 import org.simantics.selectionview.PropertyTabContributorImpl;\r
  23 import org.simantics.utils.ui.AdaptionUtils;\r
  24 \r
  25 public abstract class LabelPropertyTabContributor extends PropertyTabContributorImpl {\r
  26 \r
  27     private final Object id;\r
  28     \r
  29     public LabelPropertyTabContributor(Object id) {\r
  30         assert (id != null);\r
  31         this.id = id;\r
  32     }\r
  33     \r
  34     @Override\r
  35     public Read<String> getPartNameReadRequest(final ISelection forSelection) {\r
  36 \r
  37         return new Read<String>() {\r
  38 \r
  39             @Override\r
  40             public String perform(ReadGraph graph) throws DatabaseException {\r
  41                 Layer0 l0 = Layer0.getInstance(graph);\r
  42                 ModelingResources mr = ModelingResources.getInstance(graph);\r
  43 \r
  44                         final Variable variable = AdaptionUtils.adaptToSingle(forSelection, Variable.class);\r
  45                 final Resource resource = AdaptionUtils.adaptToSingle(forSelection, Resource.class);\r
  46                 if(resource == null && variable == null) {\r
  47                         return "Selection";\r
  48                 }\r
  49                 \r
  50                 Resource r;\r
  51                 if(variable != null) {\r
  52                         r = (Resource)variable.getRepresents(graph);\r
  53                 } else {\r
  54                         r = resource;\r
  55                 }\r
  56                 \r
  57                 if(graph.hasStatement(r, mr.ElementToComponent)) {\r
  58                     r = graph.getSingleObject(r, mr.ElementToComponent);\r
  59                 }\r
  60                 String label = graph.getPossibleRelatedValue(r, l0.HasLabel);\r
  61                 if(label != null)\r
  62                     return label;\r
  63                 label = graph.getPossibleRelatedValue(r, l0.HasName);\r
  64                 if(label != null)\r
  65                     return label;\r
  66                 return "No name for selection";\r
  67             }\r
  68             \r
  69         };\r
  70         \r
  71     }\r
  72 \r
  73     @Override\r
  74     public int hashCode() {\r
  75         return id.hashCode();\r
  76     }\r
  77 \r
  78     @Override\r
  79     public boolean equals(Object obj) {\r
  80         if (this == obj)\r
  81             return true;\r
  82         if (obj == null)\r
  83             return false;\r
  84         if (getClass() != obj.getClass())\r
  85             return false;\r
  86         LabelPropertyTabContributor other = (LabelPropertyTabContributor) obj;\r
  87         return id.equals(other.id);\r
  88     }\r
  89 \r
  90 }\r