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// $Id$
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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.ui.mvc;
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import java.util.List;
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import org.eclipse.core.databinding.DataBindingContext;
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import org.eclipse.core.databinding.beans.BeansObservables;
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import org.eclipse.core.databinding.observable.value.IObservableValue;
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import org.eclipse.jface.databinding.swt.SWTObservables;
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import org.eclipse.jface.util.IPropertyChangeListener;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.ModifyEvent;
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import org.eclipse.swt.events.ModifyListener;
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import org.eclipse.swt.layout.GridData;
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import org.eclipse.swt.layout.GridLayout;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.swt.widgets.Text;
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import eu.etaxonomy.cdm.model.occurrence.DerivedUnit;
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import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
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import eu.etaxonomy.taxeditor.ui.element.CdmPropertyChangeEvent;
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/**
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* @author pplitzner
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* @date 23.06.2014
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*
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*/
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public class OriginalLabelDataField extends Composite {
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private DataBindingContext m_bindingContext;
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private DerivedUnit derivedUnit = null;
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private final Text originalLabelInfoText;
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private CdmFormFactory formFactory;
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public OriginalLabelDataField(Composite parent, int style, DerivedUnit newDerivedUnit, CdmFormFactory formFactory) {
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this(parent, style);
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setDerivedUnit(newDerivedUnit);
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this.formFactory = formFactory;
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}
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public OriginalLabelDataField(Composite parent, int style) {
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super(parent, style);
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setLayout(new GridLayout(2, false));
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new Label(this, SWT.NONE).setText("Original Label Data");
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originalLabelInfoText = new Text(this, SWT.BORDER | SWT.WRAP | SWT.MULTI);
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originalLabelInfoText.addModifyListener(new ModifyListener() {
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@Override
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public void modifyText(ModifyEvent e) {
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if(formFactory!=null){
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List<IPropertyChangeListener> propertyChangeListeners = formFactory.getPropertyChangeListeners();
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for (IPropertyChangeListener iPropertyChangeListener : propertyChangeListeners) {
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iPropertyChangeListener.propertyChange(new CdmPropertyChangeEvent(OriginalLabelDataField.this, e));
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}
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}
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}
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});
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originalLabelInfoText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
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if (derivedUnit != null) {
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m_bindingContext = initDataBindings();
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}
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}
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@Override
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protected void checkSubclass() {
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// Disable the check that prevents subclassing of SWT components
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}
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private DataBindingContext initDataBindings() {
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IObservableValue originalLabelInfoObserveWidget = SWTObservables.observeText(originalLabelInfoText, SWT.Modify);
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IObservableValue originalLabelInfoObserveValue = BeansObservables
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.observeValue(derivedUnit, "originalLabelInfo");
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//
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DataBindingContext bindingContext = new DataBindingContext();
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//
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bindingContext.bindValue(originalLabelInfoObserveWidget, originalLabelInfoObserveValue, null, null);
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//
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return bindingContext;
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}
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public DerivedUnit getDerivedUnit() {
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return derivedUnit;
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}
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public void setDerivedUnit(DerivedUnit newDerivedUnit) {
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setDerivedUnit(newDerivedUnit, true);
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}
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public void setDerivedUnit(DerivedUnit newDerivedUnit, boolean update) {
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derivedUnit = newDerivedUnit;
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if (update) {
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if (m_bindingContext != null) {
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m_bindingContext.dispose();
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m_bindingContext = null;
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}
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if (derivedUnit != null) {
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m_bindingContext = initDataBindings();
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}
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}
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}
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}
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