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package eu.etaxonomy.taxeditor.editor.handler;
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import org.eclipse.core.expressions.PropertyTester;
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import org.eclipse.jface.util.LocalSelectionTransfer;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.TreeNode;
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import org.eclipse.ui.IEditorPart;
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import org.eclipse.ui.IWorkbenchWindow;
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import org.eclipse.ui.PlatformUI;
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import eu.etaxonomy.cdm.model.molecular.Sequence;
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import eu.etaxonomy.cdm.model.molecular.SingleRead;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateView;
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/**
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* Tests types of specimens to add items to the context menu.
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*
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* @author pplitzner
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* @author BenStoever
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*/
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public class SpecimenPropertyTester extends PropertyTester {
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private static final String SEQUENCE = "isSequence";
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private static final String SINGLE_READ = "isSingleRead";
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private static final String IS_SINGLEREAD_REUSABLE_HERE = "isSingleReadReusableHere";
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private static final String IS_SINGLEREAD_REUSED = "isSingleReadReused";
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public SpecimenPropertyTester() {}
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/** {@inheritDoc} */
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@Override
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public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
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if (receiver instanceof IStructuredSelection) {
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IStructuredSelection selection = (IStructuredSelection) receiver;
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TreeNode treeNodeOfSelection = EditorUtil.getTreeNodeOfSelection(selection);
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if (treeNodeOfSelection!=null) {
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if (SEQUENCE.equals(property)) {
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return isSequence(treeNodeOfSelection.getValue());
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}
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else if (SINGLE_READ.equals(property)) {
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return isSingleReadAlignment(treeNodeOfSelection.getValue());
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}
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else if (IS_SINGLEREAD_REUSABLE_HERE.equals(property)) {
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return isSingleReadReusableHere(treeNodeOfSelection.getValue());
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}
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else if (IS_SINGLEREAD_REUSED.equals(property)) {
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return isSingleReadReused(treeNodeOfSelection.getValue());
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}
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}
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}
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return false;
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}
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private boolean isSingleReadReused(Object value) {
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final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
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final IEditorPart activeEditor = window.getActivePage().getActiveEditor();
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if(value instanceof SingleRead){
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if(activeEditor instanceof DerivateView
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&& ((DerivateView) activeEditor).getMultiLinkSingleReads().contains(value)){
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return true;
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}
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}
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return false;
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}
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private boolean isSingleReadReusableHere(Object value) {
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TreeNode clipboardNode = EditorUtil.getTreeNodeOfSelection(LocalSelectionTransfer.getTransfer().getSelection());
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if(value instanceof Sequence && clipboardNode!=null && clipboardNode.getValue() instanceof SingleRead
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&& !((Sequence) value).getSingleReads().contains(clipboardNode.getValue())){
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return true;
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}
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return false;
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}
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private boolean isSequence(Object object) {
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return (object instanceof Sequence);
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}
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private boolean isSingleReadAlignment(Object object) {
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return (object instanceof SingleRead);
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}
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}
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