1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.preferences.projection;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.util.Collection;
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7 | import java.util.Collections;
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8 |
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9 | import org.openstreetmap.josm.tools.Logging;
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10 |
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11 | /**
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12 | * ProjectionChoice for Gauß-Krüger coordinate system (zones 2-5, EPSG:31466-31469).
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13 | * <p>
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14 | * @see <a href="https://de.wikipedia.org/wiki/Gauß-Krüger-Koordinatensystem">Gauß-Krüger</a>
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15 | */
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16 | public class GaussKruegerProjectionChoice extends ListProjectionChoice {
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17 |
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18 | private static String[] zones = {"2", "3", "4", "5"};
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19 |
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20 | /**
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21 | * Constructs a new {@code GaussKruegerProjectionChoice}.
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22 | */
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23 | public GaussKruegerProjectionChoice() {
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24 | super(tr("Gau\u00DF-Kr\u00FCger"), /* NO-ICON */ "core:gauss-krueger", zones, tr("GK Zone"));
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25 | }
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26 |
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27 | @Override
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28 | public String getCurrentCode() {
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29 | return "EPSG:"+Integer.toString(31466 + index);
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30 | }
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31 |
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32 | @Override
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33 | protected String indexToZone(int index) {
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34 | return Integer.toString(index + 2);
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35 | }
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36 |
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37 | @Override
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38 | protected int zoneToIndex(String zone) {
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39 | try {
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40 | return Integer.parseInt(zone) - 2;
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41 | } catch (NumberFormatException e) {
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42 | Logging.warn(e);
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43 | }
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44 | return defaultIndex;
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45 | }
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46 |
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47 | @Override
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48 | public String[] allCodes() {
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49 | String[] codes = new String[4];
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50 | for (int zone = 2; zone <= 5; zone++) {
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51 | codes[zone-2] = "EPSG:" + (31464 + zone);
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52 | }
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53 | return codes;
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54 | }
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55 |
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56 | @Override
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57 | public Collection<String> getPreferencesFromCode(String code) {
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58 | //zone 2 = EPSG:31466 up to zone 5 = EPSG:31469
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59 | for (int zone = 2; zone <= 5; zone++) {
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60 | String epsg = "EPSG:" + (31464 + zone);
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61 | if (epsg.equals(code))
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62 | return Collections.singleton(String.valueOf(zone));
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63 | }
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64 | return null;
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65 | }
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66 |
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67 | @Override
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68 | public String getProjectionName() {
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69 | return tr("Gau\u00DF-Kr\u00FCger Zone {0}", index + 2);
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70 | }
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71 |
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72 | }
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