Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/shared/DoubleUtils.java @ 8871:78cd6572778d

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Introduced groups for modules. Modules marked with the same group-id, will be put together in the ui. Also using now the localization info from the server instead of localizing the modules again on the client side.
author gernotbelger
date Wed, 07 Feb 2018 12:02:58 +0100
parents ea9eef426962
children
rev   line source
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172338b1407f GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.client.shared;
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10
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11
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12 public final class DoubleUtils {
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13
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14 public static final String DEFAULT_DELIM = " ";
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15
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17 private DoubleUtils() {
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18 }
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19
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20
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21 public static Double getDouble(String value) {
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22 try {
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23 return Double.valueOf(value);
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24 }
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25 catch (NumberFormatException nfe) {
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26 // do nothing
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27 }
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28
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29 return null;
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30 }
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32
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33 public static double[] getMinMax(String value) {
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34 return getMinMax(value, DEFAULT_DELIM);
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35 }
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38 public static double[] getMinMax(String value, String delim) {
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39 if (value == null) {
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40 return null;
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41 }
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42
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43 String[] values = value.split(delim);
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44
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45 int len = values != null ? values.length : 0;
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46 double[] mm = new double[] { Double.MAX_VALUE, -Double.MAX_VALUE };
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47
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48 for (int i = 0; i < len; i++) {
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49 Double d = getDouble(values[i]);
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50
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51 if (d != null) {
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52 mm[0] = mm[0] < d ? mm[0] : d;
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53 mm[1] = mm[1] > d ? mm[1] : d;
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54 }
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55 }
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56
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57 return mm[0] != Double.MAX_VALUE && mm[1] != -Double.MAX_VALUE
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58 ? mm
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59 : null;
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60 }
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61
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62 /** toIndex is not inclusive, fromIndex is. */
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63 static void fill(double[] array, int fromIndex, int toIndex, double val) {
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64 for (int i = fromIndex; i < toIndex; i++) {
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65 array[i] = val;
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66 }
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67 }
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68
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69 /** @see java.util.Arrays.copyOf */
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70 public static double[] copyOf(double[] toCopy, int newLen) {
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71 double[] nArray = new double[newLen];
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72
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73 if (toCopy == null) {
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74 fill(nArray, 0, nArray.length, 0d);
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75 return nArray;
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76 }
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77
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78 int goTo = (newLen < toCopy.length)
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79 ? newLen
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80 : toCopy.length;
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81
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82 for (int i = 0; i < goTo; i++) {
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83 nArray[i] = toCopy[i];
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84 }
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85 fill (nArray, goTo, nArray.length, 0d);
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86 return nArray;
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87 }
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88 }
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89 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org