PropertyCellLabelProvider.java

/*******************************************************************************
 * Copyright (c) 2008 Ralf Ebert
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Ralf Ebert - initial API and implementation
 *******************************************************************************/
package de.ralfebert.rcputils.properties;

import org.eclipse.jface.viewers.CellLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;

import de.bht.fpa.mail.s000000.common.internal.Activator;
import de.ralfebert.rcputils.tables.ICellFormatter;

/**
 * PropertyCellLabelProvider is a CellLabelProvider that gets cell labels using
 * a nested bean property string like "company.country.name".
 * 
 * @author Ralf Ebert <info@ralfebert.de>
 */
@SuppressWarnings("unchecked")
public class PropertyCellLabelProvider extends CellLabelProvider {
  private final IValue valueHandler;
  @SuppressWarnings("rawtypes")
  private IValueFormatter valueFormatter;
  private final ICellFormatter cellFormatter;

  public PropertyCellLabelProvider(String propertyName) {
    this.valueHandler = new PropertyValue(propertyName);
    this.cellFormatter = null;
  }

  @SuppressWarnings("rawtypes")
  public PropertyCellLabelProvider(IValue valueHandler, IValueFormatter valueFormatter, ICellFormatter cellFormatter) {
    this.valueHandler = valueHandler;
    this.valueFormatter = valueFormatter;
    this.cellFormatter = cellFormatter;
  }

  @Override
  public void update(ViewerCell cell) {
    try {
      Object rawValue = null;
      if (valueHandler != null) {
        rawValue = valueHandler.getValue(cell.getElement());
        Object formattedValue = rawValue;
        if (valueFormatter != null) {
          formattedValue = valueFormatter.format(rawValue);
        }
        cell.setText(String.valueOf(formattedValue));
      }
      if (cellFormatter != null) {
        cellFormatter.formatCell(cell, rawValue);
      }
    } catch (Exception e) {
      Activator.logException(e);
    }
  }
}