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;

/**
 * Countries sorted by name.  Same number of entries as 14.
 *
 * @author Steve Ratcliffe
 */
public class Mdr24 extends MdrSection {
        private final List<Mdr14Record> countries = new ArrayList<Mdr14Record>();

        public Mdr24(MdrConfig config) {
                setConfig(config);
        }

        /**
         * Sort the countries by name. Duplicates are kept.
         * @param list The full list of countries.
         */
        public void sortCountries(List<Mdr14Record> list) {
                Sort sort = getConfig().getSort();
                List<SortKey<Mdr14Record>> keys = MdrUtils.sortList(sort, list);

                Collections.sort(keys);

                String lastName = null;
                int lastMapIndex = 0;
                int record = 0;
                for (SortKey<Mdr14Record> key : keys) {
                        Mdr14Record c = key.getObject();

                        // If this is a new name, then we prepare a mdr29 record for it.
                        String name = c.getName();

                        if (lastMapIndex != c.getMapIndex() || !name.equals(lastName)) {
                                record++;
                                c.getMdr29().setMdr24(record);
                                countries.add(c);

                                lastName = name;
                                lastMapIndex = c.getMapIndex();
                        }
                }
        }

        /**
         * Write out the contents of this section.
         *
         * @param writer Where to write it.
         */
        public void writeSectData(ImgFileWriter writer) {
                String lastName = null;
                for (Mdr14Record c : countries) {
                        putMapIndex(writer, c.getMapIndex());

                        int flag = 0;
                        String name = c.getName();
                        if (!name.equals(lastName)) {
                                flag = 0x800000;
                                lastName = name;
                        }

                        writer.putChar((char) c.getCountryIndex());
                        writer.put3(c.getLblOffset() | flag);
                }
        }

        /**
         * 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() {
                PointerSizes sizes = getSizes();
                return sizes.getMapSize() + 2 + 3;
        }

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