bundles/org.simantics.selectionview/src/org/simantics/selectionview/VariablePropertyModifierRule.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management\r
   3  * in 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.selectionview;\r
  13 \r
  14 import java.util.List;\r
  15 \r
  16 import org.simantics.browsing.ui.content.Labeler.Modifier;\r
  17 import org.simantics.browsing.ui.graph.impl.EnumerationVariableModifier3;\r
  18 import org.simantics.browsing.ui.model.modifiers.ModifierRule;\r
  19 import org.simantics.browsing.ui.model.modifiers.VariableModifier2;\r
  20 import org.simantics.db.ReadGraph;\r
  21 import org.simantics.db.exception.DatabaseException;\r
  22 import org.simantics.db.layer0.variable.Variable;\r
  23 import org.simantics.db.layer0.variable.Variables;\r
  24 \r
  25 /**\r
  26  * @author Tuukka Lehtonen\r
  27  */\r
  28 public class VariablePropertyModifierRule implements ModifierRule {\r
  29 \r
  30     @Override\r
  31     public boolean isCompatible(Class<?> contentType) {\r
  32         return contentType.equals(Variable.class);\r
  33     }\r
  34 \r
  35     @Override\r
  36     public Modifier getModifier(ReadGraph graph, Object _content, String columnKey_) throws DatabaseException {\r
  37 \r
  38         if (!(_content instanceof Variable))\r
  39             return null;\r
  40 \r
  41         Variable content = (Variable)_content;\r
  42 \r
  43         // If the whole property is considered read-only, don't allow modification.\r
  44         Boolean readOnly = content.getPossiblePropertyValue(graph, Variables.READONLY);\r
  45         if (Boolean.TRUE.equals(readOnly))\r
  46             return null;\r
  47         \r
  48         String columnKey = columnKey_;\r
  49         if(columnKey.startsWith("#")) columnKey = columnKey.substring(1);\r
  50 \r
  51         // If the specified column of the property is considered read-only, don't allow modification.\r
  52         Variable columnVariable = content.getPossibleProperty(graph, columnKey);\r
  53         if (columnVariable != null) {\r
  54             readOnly = columnVariable.getPossiblePropertyValue(graph, Variables.READONLY);\r
  55             if (Boolean.TRUE.equals(readOnly))\r
  56                 return null;\r
  57         }\r
  58 \r
  59         for (Variable property : content.getProperties(graph)) {\r
  60             String column = property.getPossiblePropertyValue(graph, Variables.DISPLAY_COLUMN);\r
  61             if (column != null) {\r
  62                 if (columnKey.equals(column)) {\r
  63                         \r
  64                         if(columnKey_.startsWith("#"))\r
  65                         return new VariableModifier2(graph, property);\r
  66 \r
  67                     Modifier custom = property.getPossiblePropertyValue(graph, Variables.CUSTOM_MODIFIER);\r
  68                     if (custom != null) return custom;\r
  69 \r
  70                     List<String> enumeration = property.getPossiblePropertyValue(graph, Variables.ENUMERATION_VALUES);\r
  71                     if (enumeration != null) {\r
  72                         return new EnumerationVariableModifier3(graph, property, enumeration);\r
  73                     } else {\r
  74                         return new VariableModifier2(graph, property);\r
  75                     }\r
  76 \r
  77                 }\r
  78             }\r
  79         }\r
  80 \r
  81         return null;\r
  82 \r
  83     }\r
  84 \r
  85 }\r