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package eu.etaxonomy.taxeditor.molecular.editor;
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import org.eclipse.swt.widgets.Event;
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import org.eclipse.swt.widgets.Listener;
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import org.eclipse.ui.PlatformUI;
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import org.eclipse.ui.actions.ActionFactory;
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import org.eclipse.ui.commands.ICommandService;
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import eu.etaxonomy.taxeditor.molecular.editor.e4.AlignmentEditorE4;
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import eu.etaxonomy.taxeditor.molecular.handler.AbstractAlignmentEditorHandler;
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import info.bioinfweb.libralign.alignmentarea.selection.SelectionChangeEvent;
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import info.bioinfweb.libralign.alignmentarea.selection.SelectionListener;
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/**
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* Listener used to update copy/paste events associated with {@link AlignmentEditor}.
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*
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* @author Ben Stöver
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* @date 25.08.2015
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*/
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public class AlignmentEditorActionUpdater implements SelectionListener, Listener {
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private static final String[] IDS = {ActionFactory.COPY.getCommandId(), ActionFactory.CUT.getCommandId(),
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ActionFactory.PASTE.getCommandId()};
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private void updateEvents() {
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ICommandService service = PlatformUI.getWorkbench().getService(ICommandService.class);
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for (int i = 0; i < IDS.length; i++) {
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service.refreshElements(IDS[i], null);
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}
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}
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@Override
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public void handleEvent(Event event) {
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AlignmentEditorE4 editor = AbstractAlignmentEditorHandler.getActiveAlignmentEditor();
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if (editor != null) {
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updateEvents();
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}
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}
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@Override
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public void selectionChanged(SelectionChangeEvent e) {
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AlignmentEditorE4 editor = AbstractAlignmentEditorHandler.getActiveAlignmentEditor();
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if (editor != null) {
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if ((e.getSource() == editor.getReadsArea().getSelection()) ||
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(e.getSource() == editor.getEditableConsensusArea().getSelection())) {
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updateEvents();
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}
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}
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}
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}
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