Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/client/widgets/KMSpinner.java @ 5861:172338b1407f

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GWT client: Added copyright header.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:30:15 +0200
parents 5aa05a7a34b7
children ea9eef426962
rev   line source
5861
172338b1407f GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
diff changeset
1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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Sascha L. Teichmann <teichmann@intevation.de>
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2 * Software engineering by Intevation GmbH
172338b1407f GWT client: Added copyright header.
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3 *
172338b1407f GWT client: Added copyright header.
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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.client.widgets;
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10
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11 import com.google.gwt.core.client.GWT;
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12 import com.google.gwt.i18n.client.NumberFormat;
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13
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14 import com.smartgwt.client.data.Record;
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15 import com.smartgwt.client.widgets.Button;
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16 import com.smartgwt.client.widgets.Label;
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17 import com.smartgwt.client.widgets.events.ClickEvent;
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18 import com.smartgwt.client.widgets.form.DynamicForm;
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19 import com.smartgwt.client.widgets.form.FormItemValueFormatter;
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20 import com.smartgwt.client.widgets.form.FormItemValueParser;
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21 import com.smartgwt.client.widgets.form.fields.FormItem;
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22 import com.smartgwt.client.widgets.form.fields.TextItem;
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23 import com.smartgwt.client.widgets.form.fields.events.BlurEvent;
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24 import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
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25 import com.smartgwt.client.widgets.form.fields.events.KeyPressEvent;
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26 import com.smartgwt.client.widgets.form.fields.events.KeyPressHandler;
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27 import com.smartgwt.client.widgets.layout.HLayout;
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28
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29 import org.dive4elements.river.client.shared.model.FacetRecord;
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30
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31 import java.util.ArrayList;
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32 import java.util.List;
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33
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34 /**
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35 * SpinnerItem-like element with text label and up/down buttons.
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36 */
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37 public class KMSpinner extends HLayout {
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38 protected List<KMSpinnerChangeListener> listeners = new ArrayList<KMSpinnerChangeListener>();
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39
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40 protected Label label;
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41 protected FacetRecord facetRecord;
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42 protected double value;
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43
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44 public KMSpinner(double initialValue, FacetRecord facetRecord) {
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45 super(2);
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46 this.facetRecord = facetRecord;
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47 this.value = initialValue;
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48
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49 setWidth("99%");
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50 setHeight(18);
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51
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52 // minusButton shall ask service for previous available cs.
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53 Button minusButton = new Button("-");
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54 minusButton.setWidth(18);
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55 minusButton.setHeight(18);
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56 minusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
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57 public void onClick(ClickEvent evt) {
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58 fireChangedEvent(value - 0.1d, false);
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59 }
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60 });
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61
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62 DynamicForm form = new DynamicForm();
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63 final TextItem kmField = new TextItem();
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64 kmField.setValue(initialValue);
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65 kmField.setWidth("*");
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66 kmField.setTitle("");
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67 kmField.setHeight(16);
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68
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69 FormItemValueFormatter doubleFormat = new FormItemValueFormatter() {
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70 public String formatValue(Object value, Record record, DynamicForm form, FormItem item) {
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71 if (value != null) {
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72 NumberFormat nf = NumberFormat.getDecimalFormat();
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73 try {
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74 double d = Double.valueOf(value.toString()).doubleValue();
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75 return nf.format(d);
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76 }
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77 catch (Exception e) {
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78 GWT.log("EditorValueFormatter exception: " + e.toString());
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79
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80 // Remove junk chars from input string
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81 return doublefyString(value.toString());
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82 }
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83 }
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84 else {
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85 return null;
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86 }
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87 }
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88 };
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89 kmField.setEditorValueFormatter(doubleFormat);
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90
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91 FormItemValueParser doubleParser = new FormItemValueParser() {
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92 public Object parseValue(String value, DynamicForm form, FormItem item) {
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93 if (value == null)
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94 return null;
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95 try {
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96 NumberFormat nf = NumberFormat.getDecimalFormat();
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97 double d = nf.parse(value.toString());
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98 return Double.toString(d);
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99 }
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100 catch(NumberFormatException nfe) {
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101 return value;
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102 }
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103 }
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104 };
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105 kmField.setEditorValueParser(doubleParser);
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106
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107 // Update on focus lost and enter-pressed.
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108 kmField.addBlurHandler(new BlurHandler() {
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109 @Override
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110 public void onBlur(BlurEvent be) {
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111 if (kmField.getValue() != null) {
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112 try {
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113 fireChangedEvent(Double.parseDouble(kmField.getValue().toString()), true);
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114 }
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115 catch(NumberFormatException nfe) {
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116 GWT.log("entered string cannot be parsed to double.");
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117 }
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118 }
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119 }
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120 });
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121 kmField.addKeyPressHandler(new KeyPressHandler() {
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122 @Override
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123 public void onKeyPress(KeyPressEvent kpe) {
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124 if (kpe.getKeyName().equals("Enter")) {
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125 kmField.blurItem();
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126 }
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127 }
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128 });
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129
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130 // TODO: i18n Now add all the validators, formatters, editors/parsers etc.
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131 form.setFields(kmField);
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132 form.setTitle("");
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133 form.setTitlePrefix("");
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134 form.setTitleSuffix("");
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135 form.setTitleWidth(0);
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136 form.setWidth(50);
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137 form.setHeight(18);
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138
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139 // PlusButton shall ask service for next available cs.
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140 Button plusButton = new Button("+");
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141 plusButton.setWidth(18);
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142 plusButton.setHeight(18);
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143 plusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
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144 public void onClick(ClickEvent evt) {
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145 fireChangedEvent(value + 0.1d, true);
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146 }
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147 });
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148
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149 this.addMember(minusButton);
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150 this.addMember(form);
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151 this.addMember(plusButton);
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152 }
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153
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154 public void addChangeListener(KMSpinnerChangeListener listener) {
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155 this.listeners.add(listener);
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156 }
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157
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158 protected void fireChangedEvent(double val, boolean up) {
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159 for(KMSpinnerChangeListener listener : listeners) {
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160 listener.spinnerValueEntered(this, val, facetRecord, up);
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161 }
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162 }
3852
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163
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Christian Lins <christian.lins@intevation.de>
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164 /**
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165 * Remove junk chars from double string.
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166 * This method should work for most locales, but not for
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167 * exotic ones that do not use "." or "," as decimal
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168 * separator.
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169 * @return
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170 */
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171 protected String doublefyString(String str) {
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172 StringBuilder buf = new StringBuilder(str.length());
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173
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174 for (int n = 0; n < str.length(); n++) {
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175 char c = str.charAt(n);
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176 if ((c >= '0' && c <= '9') || c == '.' || c == ',') {
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177 buf.append(c);
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178 }
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179 }
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180
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181 return buf.toString();
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182 }
3717
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183 }
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184
http://dive4elements.wald.intevation.org