    /*
     * 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.sample.showcase.client.content.cell;

    import com.google.gwt.i18n.client.HasDirection;
    import com.google.gwt.user.cellview.client.AbstractPager;
    import com.google.gwt.user.client.ui.HTML;
    import com.google.gwt.view.client.HasRows;
    import com.google.gwt.view.client.Range;

    /**
     * A pager that displays the current range without any controls to change the
     * range.
     */
    public class RangeLabelPager extends AbstractPager {

      /**
       * The label that shows the current range.
       */
      private final HTML label = new HTML();

      /**
       * Construct a new {@link RangeLabelPager}.
       */
      public RangeLabelPager() {
        initWidget(label);
      }

      @Override
      protected void onRangeOrRowCountChanged() {
        HasRows display = getDisplay();
        Range range = display.getVisibleRange();
        int start = range.getStart();
        int end = start + range.getLength();
        label.setText(start + " - " + end + " : " + display.getRowCount(),
            HasDirection.Direction.LTR);
      }
    }