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package eu.etaxonomy.taxeditor.molecular.editor.e4.handler;
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import javax.inject.Named;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.core.di.annotations.Optional;
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import org.eclipse.e4.ui.model.application.MApplication;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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import org.eclipse.e4.ui.workbench.modeling.EModelService;
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import org.eclipse.e4.ui.workbench.modeling.EPartService;
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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.PartInitException;
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import eu.etaxonomy.cdm.model.molecular.Sequence;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.molecular.AppModelId;
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import eu.etaxonomy.taxeditor.molecular.editor.AlignmentEditorInput;
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import eu.etaxonomy.taxeditor.molecular.editor.e4.AlignmentEditorE4;
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import eu.etaxonomy.taxeditor.molecular.l10n.Messages;
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/**
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* Opens the alignment editor from the CDM tree.
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*
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* @author Ben Stöver
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* @author pplitzner
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*/
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public class EditSequenceHandlerE4 {
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private org.apache.log4j.Logger logger = org.apache.log4j.Logger.getLogger(EditSequenceHandlerE4.class);
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@Execute
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public void execute(@Optional@Named(IServiceConstants.ACTIVE_SELECTION)IStructuredSelection selection,
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EPartService partService, EModelService modelService, MApplication application) {
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Sequence sequence = (Sequence) ((TreeNode) selection.getFirstElement()).getValue();
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AlignmentEditorInput input = new AlignmentEditorInput(sequence.getUuid()); //TODO Should there always be a new instance created here? What if the specified CDM node is already opened in an AlignmentEditor? => Possible create Singleton that keeps instances by sequence objects in a map.
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try {
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String partId = AppModelId.PARTDESCRIPTOR_EU_ETAXONOMY_TAXEDITOR_MOLECULAR_EDITOR_E4_ALIGNMENTEDITORE4;
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MPart part = EditorUtil.showPart(partId, modelService, partService, application);
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AlignmentEditorE4 alignmentEditor = (AlignmentEditorE4) part.getObject();
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alignmentEditor.init(input);
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}
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catch (PartInitException e) {
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logger.error(Messages.EditSequenceHandler_COULD_NOT_OPEN, e);
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}
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}
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@CanExecute
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public boolean canExecute(@Optional @Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection, MHandledMenuItem menuItem) {
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boolean canExecute = false;
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canExecute = selection.size()==1
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&& selection.getFirstElement() instanceof TreeNode
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&& ((TreeNode) selection.getFirstElement()).getValue() instanceof Sequence;
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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}
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