bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/VariableImageDecorationRule.java

   1 package org.simantics.document.linking.ge;\r
   2 \r
   3 import org.eclipse.jface.resource.ImageDescriptor;\r
   4 import org.eclipse.jface.viewers.IDecoration;\r
   5 import org.simantics.browsing.ui.content.ImageDecorator;\r
   6 import org.simantics.browsing.ui.model.imagedecorators.ImageDecorationRule;\r
   7 import org.simantics.db.ReadGraph;\r
   8 import org.simantics.db.Resource;\r
   9 import org.simantics.db.exception.DatabaseException;\r
  10 import org.simantics.db.layer0.variable.Variable;\r
  11 import org.simantics.document.DocumentResource;\r
  12 import org.simantics.document.linking.Activator;\r
  13 import org.simantics.document.linking.ontology.DocumentLink;\r
  14 import org.simantics.document.linking.utils.SourceLinkUtil;\r
  15 import org.simantics.utils.ui.gfx.DecorationOverlayIcon;\r
  16 \r
  17 public class VariableImageDecorationRule implements ImageDecorationRule{\r
  18         \r
  19         @Override\r
  20         public boolean isCompatible(Class<?> contentType) {\r
  21                 return contentType.equals(Variable.class);\r
  22         }\r
  23         \r
  24         @Override\r
  25         public ImageDecorator getImageDecorator(ReadGraph graph, Object content)\r
  26                         throws DatabaseException {\r
  27                 Variable v = (Variable)content;\r
  28                 Resource r = v.getPossibleRepresents(graph);\r
  29                 if (r == null)\r
  30                         return null;\r
  31                 \r
  32                 DocumentLink sl = DocumentLink.getInstance(graph);\r
  33                 DocumentResource doc = DocumentResource.getInstance(graph);\r
  34                 \r
  35                 if (graph.isInstanceOf(r, sl.Source)) {\r
  36                         Resource reference = SourceLinkUtil.getReferredDocument(graph, r);\r
  37                         if (reference != null) {\r
  38                                 if (graph.hasStatement(reference,doc.HasNewerVersion))\r
  39                                         return new Dec(Activator.getDefault().clock_red);\r
  40                         } else {\r
  41                                 return new Dec(Activator.getDefault().cross);\r
  42                         }\r
  43                 }\r
  44                 return null;\r
  45         }\r
  46         \r
  47         private class Dec implements ImageDecorator {\r
  48                 private ImageDescriptor decorator;\r
  49                 \r
  50                 public Dec(ImageDescriptor decorator) {\r
  51                         this.decorator = decorator;\r
  52                 }\r
  53                 @SuppressWarnings("unchecked")\r
  54                 public <Image extends Object> Image decorateImage(Image image, String column, int itemIndex) {\r
  55                         return (Image) getDecoration((ImageDescriptor) image,decorator);\r
  56                 };\r
  57         }\r
  58         \r
  59         private ImageDescriptor getDecoration(ImageDescriptor original, ImageDescriptor decorator) {\r
  60         return (original == null) ? decorator:\r
  61             new DecorationOverlayIcon(original, decorator, IDecoration.BOTTOM_RIGHT);\r
  62     }\r
  63 \r
  64 }\r