Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/widgets/KMSpinner.java @ 4241:49cb65d5932d

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Improved the historical discharge calculation. The calculation now creates new HistoricalWQKms (new subclass of WQKms). Those WQKms are used to create new facets from (new) type 'HistoricalDischargeCurveFacet'. The chart generator is improved to support those facets.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 24 Oct 2012 14:34:35 +0200
parents 4aa7216b329a
children
rev   line source
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3b4cef59836a KMSpinner refactoring
Christian Lins <christian.lins@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.client.client.widgets;
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2
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Christian Lins <christian.lins@intevation.de>
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3 import com.google.gwt.core.client.GWT;
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4 import com.google.gwt.i18n.client.NumberFormat;
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5
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Christian Lins <christian.lins@intevation.de>
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6 import com.smartgwt.client.data.Record;
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Christian Lins <christian.lins@intevation.de>
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7 import com.smartgwt.client.widgets.Button;
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Christian Lins <christian.lins@intevation.de>
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8 import com.smartgwt.client.widgets.Label;
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Christian Lins <christian.lins@intevation.de>
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9 import com.smartgwt.client.widgets.events.ClickEvent;
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Christian Lins <christian.lins@intevation.de>
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10 import com.smartgwt.client.widgets.form.DynamicForm;
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Christian Lins <christian.lins@intevation.de>
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11 import com.smartgwt.client.widgets.form.FormItemValueFormatter;
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Christian Lins <christian.lins@intevation.de>
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12 import com.smartgwt.client.widgets.form.FormItemValueParser;
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Christian Lins <christian.lins@intevation.de>
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13 import com.smartgwt.client.widgets.form.fields.FormItem;
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Christian Lins <christian.lins@intevation.de>
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14 import com.smartgwt.client.widgets.form.fields.TextItem;
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Christian Lins <christian.lins@intevation.de>
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15 import com.smartgwt.client.widgets.form.fields.events.BlurEvent;
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16 import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
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17 import com.smartgwt.client.widgets.form.fields.events.KeyPressEvent;
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18 import com.smartgwt.client.widgets.form.fields.events.KeyPressHandler;
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19 import com.smartgwt.client.widgets.layout.HLayout;
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20
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21 import de.intevation.flys.client.shared.model.FacetRecord;
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22
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23 import java.util.ArrayList;
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24 import java.util.List;
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25
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Christian Lins <christian.lins@intevation.de>
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26 /**
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27 * SpinnerItem-like element with text label and up/down buttons.
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28 */
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Christian Lins <christian.lins@intevation.de>
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29 public class KMSpinner extends HLayout {
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30 protected List<KMSpinnerChangeListener> listeners = new ArrayList<KMSpinnerChangeListener>();
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31
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32 protected Label label;
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33 protected FacetRecord facetRecord;
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34 protected double value;
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35
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36 public KMSpinner(double initialValue, FacetRecord facetRecord) {
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37 super(2);
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38 this.facetRecord = facetRecord;
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39 this.value = initialValue;
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40
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41 setWidth("99%");
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42 setHeight(18);
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43
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44 // minusButton shall ask service for previous available cs.
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45 Button minusButton = new Button("-");
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Christian Lins <christian.lins@intevation.de>
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46 minusButton.setWidth(18);
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Christian Lins <christian.lins@intevation.de>
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47 minusButton.setHeight(18);
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48 minusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
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49 public void onClick(ClickEvent evt) {
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50 fireChangedEvent(value - 0.1d, false);
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51 }
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52 });
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53
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54 DynamicForm form = new DynamicForm();
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Christian Lins <christian.lins@intevation.de>
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55 final TextItem kmField = new TextItem();
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Christian Lins <christian.lins@intevation.de>
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56 kmField.setValue(initialValue);
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Christian Lins <christian.lins@intevation.de>
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57 kmField.setWidth("*");
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58 kmField.setTitle("");
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Christian Lins <christian.lins@intevation.de>
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59 kmField.setHeight(16);
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60
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61 FormItemValueFormatter doubleFormat = new FormItemValueFormatter() {
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62 public String formatValue(Object value, Record record, DynamicForm form, FormItem item) {
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63 if (value != null) {
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64 NumberFormat nf = NumberFormat.getDecimalFormat();
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65 try {
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66 double d = Double.valueOf(value.toString()).doubleValue();
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67 return nf.format(d);
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68 }
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69 catch (Exception e) {
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70 GWT.log("EditorValueFormatter exception: " + e.toString());
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71
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72 // Remove junk chars from input string
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73 return doublefyString(value.toString());
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74 }
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75 }
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76 else {
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77 return null;
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78 }
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79 }
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80 };
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81 kmField.setEditorValueFormatter(doubleFormat);
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82
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83 FormItemValueParser doubleParser = new FormItemValueParser() {
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84 public Object parseValue(String value, DynamicForm form, FormItem item) {
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85 if (value == null)
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86 return null;
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87 try {
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88 NumberFormat nf = NumberFormat.getDecimalFormat();
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89 double d = nf.parse(value.toString());
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90 return Double.toString(d);
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91 }
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92 catch(NumberFormatException nfe) {
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93 return value;
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94 }
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95 }
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96 };
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97 kmField.setEditorValueParser(doubleParser);
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98
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99 // Update on focus lost and enter-pressed.
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100 kmField.addBlurHandler(new BlurHandler() {
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101 @Override
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102 public void onBlur(BlurEvent be) {
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103 if (kmField.getValue() != null) {
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104 try {
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105 fireChangedEvent(Double.parseDouble(kmField.getValue().toString()), true);
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106 }
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107 catch(NumberFormatException nfe) {
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108 GWT.log("entered string cannot be parsed to double.");
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109 }
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110 }
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111 }
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112 });
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113 kmField.addKeyPressHandler(new KeyPressHandler() {
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114 @Override
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115 public void onKeyPress(KeyPressEvent kpe) {
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116 if (kpe.getKeyName().equals("Enter")) {
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117 kmField.blurItem();
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118 }
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119 }
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120 });
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121
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122 // TODO: i18n Now add all the validators, formatters, editors/parsers etc.
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123 form.setFields(kmField);
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124 form.setTitle("");
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125 form.setTitlePrefix("");
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126 form.setTitleSuffix("");
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127 form.setTitleWidth(0);
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128 form.setWidth(50);
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129 form.setHeight(18);
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130
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131 // PlusButton shall ask service for next available cs.
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132 Button plusButton = new Button("+");
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133 plusButton.setWidth(18);
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134 plusButton.setHeight(18);
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135 plusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
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136 public void onClick(ClickEvent evt) {
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Christian Lins <christian.lins@intevation.de>
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137 fireChangedEvent(value + 0.1d, true);
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138 }
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139 });
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140
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141 this.addMember(minusButton);
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142 this.addMember(form);
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143 this.addMember(plusButton);
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144 }
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145
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146 public void addChangeListener(KMSpinnerChangeListener listener) {
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147 this.listeners.add(listener);
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148 }
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149
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150 protected void fireChangedEvent(double val, boolean up) {
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151 for(KMSpinnerChangeListener listener : listeners) {
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152 listener.spinnerValueEntered(this, val, facetRecord, up);
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153 }
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154 }
3852
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155
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156 /**
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157 * Remove junk chars from double string.
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158 * This method should work for most locales, but not for
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159 * exotic ones that do not use "." or "," as decimal
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160 * separator.
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161 * @return
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162 */
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163 protected String doublefyString(String str) {
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164 StringBuilder buf = new StringBuilder(str.length());
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165
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166 for (int n = 0; n < str.length(); n++) {
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167 char c = str.charAt(n);
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168 if ((c >= '0' && c <= '9') || c == '.' || c == ',') {
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169 buf.append(c);
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170 }
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171 }
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172
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173 return buf.toString();
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174 }
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175 }
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176
http://dive4elements.wald.intevation.org