content: /*
   * Copyright 2010, 2011, 2012, 2013 mapsforge.org
   * Copyright 2016 devemux86
   *
   * This program is free software: you can redistribute it and/or modify it under the
   * terms of the GNU Lesser General Public License as published by the Free Software
   * Foundation, either version 3 of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT ANY
   * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public License along with
   * this program. If not, see <http://www.gnu.org/licenses/>.
   */
  package org.oscim.scalebar;
  
  public final class MetricUnitAdapter implements DistanceUnitAdapter {
      public static final MetricUnitAdapter INSTANCE = new MetricUnitAdapter();
      private static final int ONE_KILOMETER = 1000;
      private static final int[] SCALE_BAR_VALUES = {10000000, 5000000, 2000000, 1000000, 500000, 200000, 100000, 50000,
              20000, 10000, 5000, 2000, 1000, 500, 200, 100, 50, 20, 10, 5, 2, 1};
  
      private MetricUnitAdapter() {
          // do nothing
      }
  
      @Override
      public double getMeterRatio() {
          return 1;
      }
  
      @Override
      public int[] getScaleBarValues() {
          return SCALE_BAR_VALUES;
      }
  
      @Override
      public String getScaleText(int mapScaleValue) {
          if (mapScaleValue < ONE_KILOMETER) {
              return mapScaleValue + " m";
          }
          return (mapScaleValue / ONE_KILOMETER) + " km";
      }
  }
  