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

   1 package org.simantics.selectionview;\r
   2 \r
   3 import org.eclipse.jface.resource.ColorDescriptor;\r
   4 import org.eclipse.swt.graphics.RGB;\r
   5 import org.simantics.browsing.ui.common.ColumnKeys;\r
   6 import org.simantics.browsing.ui.content.LabelDecorator;\r
   7 import org.simantics.browsing.ui.model.labeldecorators.LabelDecorationRule;\r
   8 import org.simantics.db.ReadGraph;\r
   9 import org.simantics.db.exception.DatabaseException;\r
  10 import org.simantics.db.layer0.variable.Variable;\r
  11 import org.simantics.db.layer0.variable.Variables;\r
  12 \r
  13 /**\r
  14  * @author Tuukka Lehtonen\r
  15  */\r
  16 public class VariableColoringDecorationRule implements LabelDecorationRule {\r
  17 \r
  18         private final static ColorDescriptor READONLY_GRAY = ColorDescriptor.createFrom(new RGB(240, 240, 240));\r
  19 \r
  20         @Override\r
  21         public boolean isCompatible(Class<?> contentType) {\r
  22                 return contentType.equals(Variable.class);\r
  23         }\r
  24 \r
  25         @Override\r
  26         public LabelDecorator getLabelDecorator(ReadGraph graph, Object content)\r
  27                         throws DatabaseException {\r
  28                 Variable variable = (Variable)content;\r
  29                 Object o = variable.getPossiblePropertyValue(graph, Variables.READONLY);\r
  30                 if (!Boolean.TRUE.equals(o))\r
  31                         return null;\r
  32                 return ReadOnlyDecorator.INSTANCE;\r
  33         }\r
  34 \r
  35         private static class ReadOnlyDecorator extends LabelDecorator.Stub {\r
  36                 public static ReadOnlyDecorator INSTANCE = new ReadOnlyDecorator();\r
  37                 @SuppressWarnings("unchecked")\r
  38                 @Override\r
  39                 public <C> C decorateBackground(C color, String column, int itemIndex) {\r
  40                         if (ColumnKeys.DISPLAY_VALUE.equals(column) || ColumnKeys.DISPLAY_UNIT.equals(column))\r
  41                                 return (C) READONLY_GRAY;\r
  42                         return null;\r
  43                 }\r
  44         }\r
  45 \r
  46 }\r