Subversion Repositories mkgmap

/*
 * Copyright (C) 2011.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 or
 * version 2 as published by the Free Software Foundation.
 *
 * 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
 * General Public License for more details.
 */
package uk.me.parabola.imgfmt.app.mdr;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import uk.me.parabola.imgfmt.app.ImgFileWriter;
import uk.me.parabola.imgfmt.app.srt.Sort;
import uk.me.parabola.imgfmt.app.srt.SortKey;

/**
 * Cities sorted by region name.
 *
 * @author Steve Ratcliffe
 */
public class Mdr27 extends MdrSection {
        private final List<Mdr5Record> cities = new ArrayList<Mdr5Record>();

        public Mdr27(MdrConfig config) {
                setConfig(config);
        }

        /**
         * Cities are sorted by region and then by the mdr5 city record number.
         * @param list The complete list of cities from mdr5.
         */
        public void sortCities(List<Mdr5Record> list) {
                Sort sort = getConfig().getSort();

                List<SortKey<Mdr5Record>> keys = new ArrayList<SortKey<Mdr5Record>>();
                for (Mdr5Record c : list) {
                        Mdr13Record mdrRegion = c.getMdrRegion();
                        if (mdrRegion != null) {
                                SortKey<Mdr5Record> key = sort.createSortKey(c, mdrRegion.getName(), c.getGlobalCityIndex());
                                keys.add(key);
                        }
                }

                Collections.sort(keys);

                String lastName = null;
                int record = 0;
                for (SortKey<Mdr5Record> key : keys) {
                        record++;
                        Mdr5Record city = key.getObject();

                        Mdr13Record mdrRegion = city.getMdrRegion();
                        Mdr28Record mdr28 = mdrRegion.getMdr28();
                        String name = mdr28.getName();
                        if (!name.equals(lastName)) {
                                mdr28.setMdr27(record);
                                lastName = name;
                        }

                        cities.add(city);
                }
        }

        /**
         * Write out the contents of this section.
         *
         * @param writer Where to write it.
         */
        public void writeSectData(ImgFileWriter writer) {
                int size = getItemSize();
                for (Mdr5Record city : cities) {
                        writer.putN(size,  city.getGlobalCityIndex());
                }
        }

        /**
         * The size of a record in the section.  This is not a constant and might vary
         * on various factors, such as the file version, if we are preparing for a
         * device, the number of maps etc.
         *
         * @return The size of a record in this section.
         */
        public int getItemSize() {
                return getSizes().getCitySize();
        }

        /**
         * The number of records in this section.
         *
         * @return The number of items in the section.
         */
        protected int numberOfItems() {
                return cities.size();
        }
}