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package eu.etaxonomy.taxeditor.editor.view.derivate.contextMenu;
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import org.eclipse.jface.action.ContributionItem;
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import org.eclipse.jface.action.IContributionItem;
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import org.eclipse.jface.util.LocalSelectionTransfer;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.TreeNode;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.SelectionAdapter;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.widgets.Menu;
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import org.eclipse.swt.widgets.MenuItem;
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import org.eclipse.ui.IEditorPart;
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import org.eclipse.ui.IWorkbenchPart;
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import org.eclipse.ui.IWorkbenchWindow;
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import org.eclipse.ui.PlatformUI;
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import org.eclipse.ui.actions.CompoundContributionItem;
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import eu.etaxonomy.cdm.api.service.molecular.ISequenceService;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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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.cdm.model.taxon.Taxon;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.Messages;
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import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateView;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* Context menu for the SingleReads in the derivate hierarchy.
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*
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*/
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public class CreateFieldUnitContextMenu extends CompoundContributionItem {
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private enum CommandType{
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COPY_TO_CLIPBOARD,
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REMOVE_FROM_SEQUENCE,
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ADD_TO_SEQUENCE
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}
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@Override
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protected IContributionItem[] getContributionItems() {
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IContributionItem[] contributionItems = new IContributionItem[] {
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new ContributionItem() {
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@Override
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public void fill(Menu menu, int index) {
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final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
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IWorkbenchPart activePart = window.getActivePage().getActivePart();
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if(activePart instanceof DerivateView){
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MenuItem item = new MenuItem(menu, SWT.NONE);
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item.setText("Create FieldUnit");
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if(((DerivateView) activePart).isListenToSelectionChange()){
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Object selectionInput = ((DerivateView) activePart).getSelectionInput();
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if(selectionInput instanceof CdmBase && ((CdmBase) selectionInput).isInstanceOf(Taxon.class)){
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Taxon taxon = HibernateProxyHelper.deproxy(selectionInput, Taxon.class);
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item.setText("Create FieldUnit (attach to "+taxon.getTitleCache()+")");
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}
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}
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item.addSelectionListener(new WidgetSelectionListener(CommandType.ADD_TO_SEQUENCE));
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}
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final ISelection selection = window.getActivePage().getSelection();
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TreeNode selectedTreeNode = EditorUtil.getTreeNodeOfSelection(selection);
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TreeNode clipboardNode = EditorUtil.getTreeNodeOfSelection(LocalSelectionTransfer.getTransfer().getSelection());
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if(selectedTreeNode!=null){
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//context menu for Sequence
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if(selectedTreeNode.getValue() instanceof Sequence
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&& clipboardNode!=null && clipboardNode.getValue() instanceof SingleRead){
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MenuItem item = new MenuItem(menu, SWT.NONE);
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item.setText(Messages.SingleReadSequenceContextMenu_REUSE_SINGLE_READ_HERE);
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item.addSelectionListener(new WidgetSelectionListener(CommandType.ADD_TO_SEQUENCE));
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}
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else if(selectedTreeNode.getValue() instanceof SingleRead){
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MenuItem item = new MenuItem(menu, SWT.NONE);
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item.setText(Messages.SingleReadSequenceContextMenu_REUSE_FOR_SEQUENCE);
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item.addSelectionListener(new WidgetSelectionListener(CommandType.COPY_TO_CLIPBOARD));
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if(activePart instanceof DerivateView
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&& ((DerivateView) activePart).getMultiLinkSingleReads().contains(selectedTreeNode.getValue())){
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MenuItem unlinkItem = new MenuItem(menu, SWT.NONE);
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unlinkItem.setText(Messages.SingleReadSequenceContextMenu_REMOVE_FROM_SEQUENCE);
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unlinkItem.addSelectionListener(new WidgetSelectionListener(CommandType.REMOVE_FROM_SEQUENCE));
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}
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}
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}
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}
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}
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};
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return contributionItems;
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}
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private class WidgetSelectionListener extends SelectionAdapter{
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private final CommandType commandType;
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/**
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* @param selectedTreeNode
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* @param clipboardNode
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* @param commandType
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*/
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public WidgetSelectionListener(CommandType commandType) {
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this.commandType = commandType;
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}
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@Override
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public void widgetSelected(SelectionEvent e) {
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IEditorPart activeEditor = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor();
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ISelection clipBoardSelection = LocalSelectionTransfer.getTransfer().getSelection();
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final ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getSelection();
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TreeNode clipBoardTreeNode = EditorUtil.getTreeNodeOfSelection(clipBoardSelection);
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TreeNode selectedTreeNode = EditorUtil.getTreeNodeOfSelection(selection);
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switch (commandType) {
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case REMOVE_FROM_SEQUENCE:
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if(activeEditor.isDirty()){
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MessagingUtils.warningDialog(DerivateView.VIEW_HAS_UNSAVED_CHANGES, this, DerivateView.YOU_NEED_TO_SAVE_BEFORE_PERFORMING_THIS_ACTION);
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return;
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}
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if(selectedTreeNode!=null && selectedTreeNode.getParent()!=null &&
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selectedTreeNode.getValue() instanceof SingleRead && selectedTreeNode.getParent().getValue() instanceof Sequence) {
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Sequence sequence = (Sequence) selectedTreeNode.getParent().getValue();
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sequence.removeSingleRead((SingleRead) selectedTreeNode.getValue());
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CdmStore.getService(ISequenceService.class).saveOrUpdate(sequence);
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if(activeEditor instanceof DerivateView) {
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DerivateView derivateView = (DerivateView)activeEditor;
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derivateView.getConversationHolder().commit();
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derivateView.refreshTree();
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}
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}
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break;
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case ADD_TO_SEQUENCE:
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if(activeEditor.isDirty()){
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MessagingUtils.warningDialog(DerivateView.VIEW_HAS_UNSAVED_CHANGES, this, DerivateView.YOU_NEED_TO_SAVE_BEFORE_PERFORMING_THIS_ACTION);
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return;
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}
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if(clipBoardTreeNode!=null && clipBoardTreeNode.getValue() instanceof SingleRead
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&& selectedTreeNode!=null && selectedTreeNode.getValue() instanceof Sequence){
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SingleRead singleRead = (SingleRead)clipBoardTreeNode.getValue();
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Sequence sequence = (Sequence)selectedTreeNode.getValue();
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sequence.addSingleRead(singleRead);
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CdmStore.getService(ISequenceService.class).saveOrUpdate(sequence);
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if(activeEditor instanceof DerivateView) {
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DerivateView derivateView = (DerivateView)activeEditor;
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derivateView.getConversationHolder().commit();
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derivateView.refreshTree();
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LocalSelectionTransfer.getTransfer().setSelection(null);
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}
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}
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break;
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case COPY_TO_CLIPBOARD:
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LocalSelectionTransfer.getTransfer().setSelection(selection);
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break;
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}
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}
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}
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}
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