de.ralfebert.rcputils.properties.PropertyCellLabelProvider.java Source code

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Here is the source code for de.ralfebert.rcputils.properties.PropertyCellLabelProvider.java

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/*******************************************************************************
 * 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.ralfebert.rcputils.internal.RcpUtilsPlugin;
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;
    private IValueFormatter valueFormatter;
    private final ICellFormatter cellFormatter;

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

    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) {
            RcpUtilsPlugin.logException(e);
        }
    }
}