eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/mvc/OriginalLabelDataField.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2014 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.taxeditor.ui.mvc;
  11
  12 import java.util.List;
  13
  14 import org.eclipse.core.databinding.DataBindingContext;
  15 import org.eclipse.core.databinding.beans.BeansObservables;
  16 import org.eclipse.core.databinding.observable.value.IObservableValue;
  17 import org.eclipse.jface.databinding.swt.SWTObservables;
  18 import org.eclipse.jface.util.IPropertyChangeListener;
  19 import org.eclipse.swt.SWT;
  20 import org.eclipse.swt.events.ModifyEvent;
  21 import org.eclipse.swt.events.ModifyListener;
  22 import org.eclipse.swt.layout.GridData;
  23 import org.eclipse.swt.layout.GridLayout;
  24 import org.eclipse.swt.widgets.Composite;
  25 import org.eclipse.swt.widgets.Label;
  26 import org.eclipse.swt.widgets.Text;
  27
  28 import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
  29 import eu.etaxonomy.taxeditor.ui.element.CdmPropertyChangeEvent;
  30
  31 /**
  32  * @author pplitzner
  33  * @date 23.06.2014
  34  *
  35  */
  36 public class OriginalLabelDataField extends Composite {
  37
  38     private DataBindingContext m_bindingContext;
  39     private eu.etaxonomy.cdm.model.occurrence.DerivedUnit derivedUnit = null;
  40     private final Text originalLabelInfoText;
  41     private CdmFormFactory formFactory;
  42
  43     public OriginalLabelDataField(Composite parent, int style, eu.etaxonomy.cdm.model.occurrence.DerivedUnit newDerivedUnit, CdmFormFactory formFactory) {
  44         this(parent, style);
  45         setDerivedUnit(newDerivedUnit);
  46         this.formFactory = formFactory;
  47     }
  48
  49     public OriginalLabelDataField(Composite parent, int style) {
  50         super(parent, style);
  51         setLayout(new GridLayout(2, false));
  52
  53         new Label(this, SWT.NONE).setText("Original Label Data");
  54
  55         originalLabelInfoText = new Text(this, SWT.BORDER | SWT.WRAP | SWT.MULTI);
  56         originalLabelInfoText.addModifyListener(new ModifyListener() {
  57             @Override
  58             public void modifyText(ModifyEvent e) {
  59                 if(formFactory!=null){
  60                     List<IPropertyChangeListener> propertyChangeListeners = formFactory.getPropertyChangeListeners();
  61                     for (IPropertyChangeListener iPropertyChangeListener : propertyChangeListeners) {
  62                         iPropertyChangeListener.propertyChange(new CdmPropertyChangeEvent(OriginalLabelDataField.this, e));
  63                     }
  64                 }
  65             }
  66         });
  67         originalLabelInfoText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
  68
  69         if (derivedUnit != null) {
  70             m_bindingContext = initDataBindings();
  71         }
  72     }
  73
  74     @Override
  75     protected void checkSubclass() {
  76         // Disable the check that prevents subclassing of SWT components
  77     }
  78
  79     private DataBindingContext initDataBindings() {
  80         IObservableValue originalLabelInfoObserveWidget = SWTObservables.observeText(originalLabelInfoText, SWT.Modify);
  81         IObservableValue originalLabelInfoObserveValue = BeansObservables
  82                 .observeValue(derivedUnit, "originalLabelInfo");
  83         //
  84         DataBindingContext bindingContext = new DataBindingContext();
  85         //
  86         bindingContext.bindValue(originalLabelInfoObserveWidget, originalLabelInfoObserveValue, null, null);
  87         //
  88         return bindingContext;
  89     }
  90
  91     public eu.etaxonomy.cdm.model.occurrence.DerivedUnit getDerivedUnit() {
  92         return derivedUnit;
  93     }
  94
  95     public void setDerivedUnit(eu.etaxonomy.cdm.model.occurrence.DerivedUnit newDerivedUnit) {
  96         setDerivedUnit(newDerivedUnit, true);
  97     }
  98
  99     public void setDerivedUnit(eu.etaxonomy.cdm.model.occurrence.DerivedUnit newDerivedUnit, boolean update) {
 100         derivedUnit = newDerivedUnit;
 101         if (update) {
 102             if (m_bindingContext != null) {
 103                 m_bindingContext.dispose();
 104                 m_bindingContext = null;
 105             }
 106             if (derivedUnit != null) {
 107                 m_bindingContext = initDataBindings();
 108             }
 109         }
 110     }
 111
 112 }