eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/handler/SpecimenPropertyTester.java

   1 package eu.etaxonomy.taxeditor.editor.handler;
   2
   3 import org.eclipse.core.expressions.PropertyTester;
   4 import org.eclipse.jface.viewers.IStructuredSelection;
   5 import org.eclipse.jface.viewers.TreeNode;
   6
   7 import eu.etaxonomy.cdm.model.molecular.Sequence;
   8 import eu.etaxonomy.cdm.model.molecular.SingleRead;
   9 import eu.etaxonomy.cdm.model.occurrence.MediaSpecimen;
  10 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
  11 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  12
  13 /**
  14  * Tests types of specimens to add items to the context menu.
  15  *
  16  * @author pplitzner
  17  * @author BenStoever
  18  */
  19 public class SpecimenPropertyTester extends PropertyTester {
  20     private static final String SEQUENCE = "isSequence"; //$NON-NLS-1$
  21     private static final String SINGLE_READ = "isSingleRead"; //$NON-NLS-1$
  22     private static final String IS_SPECIMEN_OR_OBSERVATION_BASE = "isSpecimenOrObservationBase"; //$NON-NLS-1$
  23     private static final String IS_ADD_DERIVATE_ALLOWED = "isAddDerivateAllowed"; //$NON-NLS-1$
  24     private static final String IS_ADD_MEDIA_ALLOWED = "isAddMediaAllowed"; //$NON-NLS-1$
  25
  26
  27     public SpecimenPropertyTester() {}
  28
  29     @Override
  30     public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
  31         if (receiver instanceof IStructuredSelection) {
  32             IStructuredSelection selection = (IStructuredSelection) receiver;
  33             TreeNode treeNodeOfSelection = EditorUtil.getTreeNodeOfSelection(selection);
  34             if (treeNodeOfSelection!=null) {
  35                 if (SEQUENCE.equals(property)) {
  36                     return isSequence(treeNodeOfSelection.getValue());
  37                 }
  38                 else if (SINGLE_READ.equals(property)) {
  39                     return isSingleRead(treeNodeOfSelection.getValue());
  40                 }
  41                 else if (IS_SPECIMEN_OR_OBSERVATION_BASE.equals(property)) {
  42                     return isSpecimenOrObservationBase(treeNodeOfSelection.getValue());
  43                 }
  44                 else if (IS_ADD_DERIVATE_ALLOWED.equals(property)) {
  45                     return isAddDerivateAllowed(treeNodeOfSelection.getValue());
  46                 }
  47                 else if (IS_ADD_MEDIA_ALLOWED.equals(property)) {
  48                     return isAddMediaAllowed(treeNodeOfSelection.getValue());
  49                 }
  50             }
  51         }
  52         return false;
  53     }
  54
  55
  56     private boolean isSpecimenOrObservationBase(Object object) {
  57         return (object instanceof SpecimenOrObservationBase);
  58         }
  59
  60     private boolean isAddDerivateAllowed(Object object) {
  61         return (object instanceof SpecimenOrObservationBase || object instanceof Sequence)
  62                 && !(object instanceof MediaSpecimen);
  63     }
  64
  65     private boolean isAddMediaAllowed(Object object) {
  66         return object instanceof SpecimenOrObservationBase
  67                 && !(object instanceof MediaSpecimen);
  68     }
  69
  70     private boolean isSingleRead(Object object) {
  71         return (object instanceof SingleRead);
  72     }
  73
  74     private boolean isSequence(Object object) {
  75         return (object instanceof Sequence);
  76     }
  77 }