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/**
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* Copyright (C) 2014 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.view.specimenSearch;
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import org.eclipse.jface.wizard.IWizard;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.widgets.Combo;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Event;
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import org.eclipse.swt.widgets.Listener;
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/**
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* Controller class for handling {@link SpecimenProviderSelectionComposite}
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* @author pplitzner
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* @date 22.05.2014
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*
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*/
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public class SpecimenProviderSelectionController implements Listener{
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private SpecimenProviderSelectionComposite composite;
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private IWizard wizard;
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private String lastAccessPoint;
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private static SpecimenProviderSelectionController instance;
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public static SpecimenProviderSelectionController getInstance(Composite parent, IWizard wizard){
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if(instance==null){
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instance = new SpecimenProviderSelectionController(parent, wizard);
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return instance;
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}
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instance.init(parent, wizard);
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return instance;
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}
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/**
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* Constructs a new controller which will itself construct the composite
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* @param parent the parent {@link Composite} for the one handles by this controller
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*/
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private SpecimenProviderSelectionController(Composite parent, IWizard wizard) {
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init(parent, wizard);
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}
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/**
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* @param parent
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* @param wizard
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*/
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private void init(Composite parent, IWizard wizard) {
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this.wizard = wizard;
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composite = new SpecimenProviderSelectionComposite(parent, SWT.NONE);
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composite.getBtnBioCaseProvider().addListener(SWT.Selection, this);
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composite.getBtnGbif().addListener(SWT.Selection, this);
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composite.getTxtAccessPoint().addListener(SWT.Modify, this);
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composite.getBtnGbif().setSelection(true);
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composite.getTxtAccessPoint().setEnabled(false);
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composite.getLblAccessPointUrl().setEnabled(false);
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loadLastState();
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}
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private void loadLastState() {
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if(lastAccessPoint!=null){
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Combo text = composite.getTxtAccessPoint();
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Listener[] listeners = text.getListeners(SWT.Modify);
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for (int i = 0; i < listeners.length; i++) {
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text.removeListener(SWT.Modify, listeners[i]);
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}
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text.setText(lastAccessPoint);
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for (int i = 0; i < listeners.length; i++) {
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text.addListener(SWT.Modify, listeners[i]);
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}
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}
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}
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/* (non-Javadoc)
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* @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
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*/
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@Override
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public void handleEvent(Event event) {
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if(event.widget==composite.getBtnBioCaseProvider()){
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composite.getTxtAccessPoint().setEnabled(true);
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composite.getLblAccessPointUrl().setEnabled(true);
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}
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else if(event.widget==composite.getBtnGbif()){
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composite.getLblAccessPointUrl().setEnabled(false);
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composite.getTxtAccessPoint().setEnabled(false);
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}
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wizard.getContainer().updateButtons();
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}
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/**
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* @return the composite
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*/
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public SpecimenProviderSelectionComposite getComposite() {
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return composite;
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}
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public void saveLastState() {
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lastAccessPoint = composite.getTxtAccessPoint().getText();
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}
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}
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