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package eu.etaxonomy.taxeditor.molecular.editor.e4.handler;
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import java.net.URI;
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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.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.EPartService;
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import org.eclipse.e4.ui.workbench.modeling.EPartService.PartState;
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import org.eclipse.jface.viewers.TreeNode;
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import eu.etaxonomy.cdm.model.media.MediaUtils;
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import eu.etaxonomy.cdm.model.molecular.SingleRead;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.molecular.TaxeditorMolecularPlugin;
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import eu.etaxonomy.taxeditor.molecular.editor.e4.AlignmentEditorE4;
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import eu.etaxonomy.taxeditor.molecular.editor.e4.PherogramPartE4;
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import eu.etaxonomy.taxeditor.molecular.l10n.Messages;
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import info.bioinfweb.libralign.pherogram.model.PherogramComponentModel;
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/**
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* Displays an undistorted pherogram with {@link PherogramPartE4}.
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*
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* @author Ben Stöver
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*/
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public class ShowPherogramHandlerE4 {
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@Execute
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public Object execute(@Optional@Named(IServiceConstants.ACTIVE_SELECTION)TreeNode treeNodeOfSelection,
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EPartService partService) {
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if (treeNodeOfSelection != null && treeNodeOfSelection.getValue() instanceof SingleRead) {
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//TODO Can the parent node (containing the cut positions) be extracted from SingleRead?
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try {
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SingleRead singleRead = (SingleRead)treeNodeOfSelection.getValue();
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URI uri = null;
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if (singleRead.getPherogram() != null) { // Pherogram objects without URI are possible.
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uri = MediaUtils.getFirstMediaRepresentationPart(singleRead.getPherogram()).getUri();
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}
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if (uri == null) {
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MessagingUtils.messageDialog(Messages.ShowPherogramHandler_NO_PHEROGRAM, this,
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Messages.ShowPherogramHandler_NO_PHEROGRAM_MESSAGE);
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}
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else {
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MPart part = partService.createPart(eu.etaxonomy.taxeditor.molecular.AppModelId.PARTDESCRIPTOR_EU_ETAXONOMY_TAXEDITOR_MOLECULAR_EDITOR_E4_PHEROGRAMPARTE4);
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part = partService.showPart(part, PartState.ACTIVATE);
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PherogramPartE4 pherogramPart = (PherogramPartE4) part.getObject();
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pherogramPart.init(new PherogramComponentModel(AlignmentEditorE4.readPherogram(uri)));
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}
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}
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catch (Exception e) {
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MessagingUtils.errorDialog(Messages.ShowPherogramHandler_ERROR, null, e.getLocalizedMessage(), TaxeditorMolecularPlugin.PLUGIN_ID,
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e, false);
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}
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}
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return null;
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}
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@CanExecute
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public boolean canExecute(@Optional @Named(IServiceConstants.ACTIVE_SELECTION) TreeNode selectedTreeNode, MHandledMenuItem menuItem) {
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boolean canExecute = false;
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if(selectedTreeNode!=null){
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Object value = selectedTreeNode.getValue();
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canExecute = value instanceof SingleRead;
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}
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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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