/*
 * Copyright 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.cell.client;

import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;

import java.util.Date;

/**
 * A {@link Cell} used to render {@link Date}s.
 *
 * <p>
 * Note: This class is new and its interface subject to change.
 * </p>
 */
public class DateCell extends AbstractCell<Date> {

  private final DateTimeFormat format;

  /**
   * Construct a new {@link DateCell} using the format
   * {@link PredefinedFormat#DATE_FULL}.
   */
  public DateCell() {
    this(DateTimeFormat.getFormat(PredefinedFormat.DATE_FULL));
  }

  /**
   * Construct a new {@link DateCell} using the specified format.
   *
   * @param format the {@link DateTimeFormat} used to render the date
   */
  public DateCell(DateTimeFormat format) {
    this.format = format;
  }

  @Override
  public void render(Date value, Object key, StringBuilder sb) {
    if (value != null) {
      sb.append(format.format(value));
    }
  }
}