Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/SingleLocationPanel.java @ 1590:4b773cfd11b5
Refactoring to ease code-reuse.
flys-client/trunk@3882 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Thu, 02 Feb 2012 13:42:12 +0000 |
parents | dbdf954dbe94 |
children | 8ab010967f78 |
rev | line source |
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1 package de.intevation.flys.client.client.ui; |
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2 |
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3 import java.util.ArrayList; |
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4 import java.util.List; |
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5 |
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6 import com.google.gwt.core.client.GWT; |
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7 import com.google.gwt.i18n.client.NumberFormat; |
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8 |
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9 import com.smartgwt.client.util.SC; |
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10 import com.smartgwt.client.widgets.Canvas; |
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11 import com.smartgwt.client.widgets.Label; |
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12 import com.smartgwt.client.widgets.form.fields.events.BlurHandler; |
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13 import com.smartgwt.client.widgets.form.fields.events.BlurEvent; |
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14 import com.smartgwt.client.widgets.form.fields.FormItem; |
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15 |
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16 import com.smartgwt.client.widgets.layout.HLayout; |
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17 import com.smartgwt.client.widgets.layout.VLayout; |
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18 |
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19 import com.smartgwt.client.widgets.grid.events.RecordClickHandler; |
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20 import com.smartgwt.client.widgets.grid.events.RecordClickEvent; |
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21 |
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22 import com.smartgwt.client.data.Record; |
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23 |
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24 import de.intevation.flys.client.shared.model.ArtifactDescription; |
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25 import de.intevation.flys.client.shared.model.Data; |
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26 import de.intevation.flys.client.shared.model.DataItem; |
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27 import de.intevation.flys.client.shared.model.DataList; |
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28 import de.intevation.flys.client.shared.model.DefaultData; |
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29 import de.intevation.flys.client.shared.model.DefaultDataItem; |
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30 import de.intevation.flys.client.shared.model.DistanceInfoObject; |
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31 import de.intevation.flys.client.shared.model.RangeData; |
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32 |
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33 import de.intevation.flys.client.client.services.DistanceInfoService; |
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34 import de.intevation.flys.client.client.services.DistanceInfoServiceAsync; |
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35 import de.intevation.flys.client.client.Config; |
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36 import de.intevation.flys.client.client.ui.range.DistanceInfoDataSource; |
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37 |
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38 |
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39 /** |
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40 * This UIProvider creates a widget to enter a single location (km). |
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41 * |
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42 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> |
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43 */ |
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44 public class SingleLocationPanel |
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45 extends AbstractUIProvider |
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46 implements RecordClickHandler |
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47 { |
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48 /** The DistanceInfoService used to retrieve locations about rivers. */ |
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49 protected DistanceInfoServiceAsync distanceInfoService = |
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50 GWT.create(DistanceInfoService.class); |
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51 |
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52 /** A container that will contain the location or the distance panel. */ |
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53 protected HLayout container; |
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54 |
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55 /** The minimal value that the user is allowed to enter. */ |
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56 protected double min; |
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57 |
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58 /** The maximal value that the user is allowed to enter. */ |
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59 protected double max; |
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60 |
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61 /** The values entered in the location mode. */ |
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62 protected double[] values; |
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63 |
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64 /** The input panel for locations. */ |
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65 protected DoubleArrayPanel locationPanel; |
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66 |
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67 /** The table data. */ |
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68 protected DistanceInfoObject[] tableData; |
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69 |
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70 /** Name of the data item that keeps locations. */ |
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71 protected String DATA_ITEM_NAME = "ld_locations"; |
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72 |
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73 /** The input helper (usually right side, table to click on, values are |
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74 * then entered in the texfield. */ |
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75 protected LocationPicker picker; |
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76 |
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77 /** |
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78 * Creates a new LocationDistancePanel instance. |
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79 */ |
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80 public SingleLocationPanel() { |
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81 picker = new LocationPicker(this); |
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82 } |
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83 |
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84 |
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85 /** |
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86 * This method creates a widget that contains a label, a panel with |
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87 * checkboxes to switch the input mode between location and distance input, |
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88 * and a mode specific panel. |
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89 * |
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90 * @param data The data that might be inserted. |
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91 * |
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92 * @return a panel. |
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93 */ |
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94 @Override |
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95 public Canvas create(DataList data) { |
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96 VLayout layout = new VLayout(); |
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97 layout.setMembersMargin(10); |
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98 |
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99 Label label = new Label(MSG.location ()); |
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100 //picker = new LocationPicker(this); |
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101 Canvas widget = createWidget(data); |
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102 Canvas submit = getNextButton(); |
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103 |
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104 initDefaults(data); |
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105 |
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106 picker.createLocationTable(); |
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107 |
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108 widget.setHeight(50); |
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109 label.setHeight(25); |
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110 |
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111 layout.addMember(label); |
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112 layout.addMember(widget); |
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113 layout.addMember(submit); |
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114 |
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115 return layout; |
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116 } |
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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 * This method creates a Canvas element showing the old Data objects in the |
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122 * DataList <i>data</i>. |
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123 */ |
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124 public Canvas createOld(DataList dataList) { |
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125 List<Data> items = dataList.getAll(); |
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126 Data dLocation = getData(items, DATA_ITEM_NAME); |
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127 DataItem[] loc = dLocation.getItems(); |
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128 |
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129 HLayout layout = new HLayout(); |
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130 layout.setWidth("400px"); |
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131 |
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132 Label label = new Label(dataList.getLabel()); |
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133 label.setWidth("200px"); |
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134 |
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135 Canvas back = getBackButton(dataList.getState()); |
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136 |
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137 Label selected = new Label(loc[0].getLabel()); |
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138 selected.setWidth("130px"); |
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139 |
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140 layout.addMember(label); |
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141 layout.addMember(selected); |
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142 layout.addMember(back); |
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143 |
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144 return layout; |
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145 } |
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146 |
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147 |
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148 /** |
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149 * This method reads the default values defined in the DataItems of the Data |
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150 * objects in <i>list</i>. |
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151 * |
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152 * @param list The DataList container that stores the Data objects. |
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153 */ |
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154 protected void initDefaults(DataList list) { |
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155 Data data = list.get(0); |
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156 |
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157 /* |
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158 // Compatibility with MinMax- DataItems: |
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159 RangeData rangeData = null; |
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160 |
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161 for (int i = 0, n = list.size(); i < n; i++) { |
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162 Data tmp = list.get(i); |
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163 |
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164 if (tmp instanceof RangeData) { |
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165 rangeData = (RangeData) tmp; |
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166 } |
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167 } |
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168 |
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169 if (rangeData != null) { |
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170 min = Double.parseDouble(rangeData.getDefaultLower().toString()); |
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171 max = Double.parseDouble(rangeData.getDefaultUpper().toString()); |
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172 // catch ..? |
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173 } |
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174 */ |
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175 |
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176 if (false) {} |
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177 else { |
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178 DataItem[] items = data.getItems(); |
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179 DataItem iMin = getDataItem(items, "min"); |
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180 DataItem iMax = getDataItem(items, "max"); |
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181 |
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182 try { |
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183 min = Double.parseDouble(iMin.getStringValue()); |
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184 max = Double.parseDouble(iMax.getStringValue()); |
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185 } |
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186 catch (NumberFormatException nfe) { |
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187 SC.warn(MSG.error_read_minmax_values()); |
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188 min = -Double.MAX_VALUE; |
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189 max = Double.MAX_VALUE; |
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190 } |
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191 } |
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192 |
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193 DataItem def = data.getDefault(); |
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194 String value = def.getStringValue(); |
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195 |
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196 try { |
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197 double d = Double.parseDouble(value); |
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198 setLocationValues(new double[] { d } ); |
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199 } |
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200 catch (NumberFormatException nfe) { |
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201 // could not parse, dont know what to do else |
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202 } |
238
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203 } |
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204 |
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205 |
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206 /** |
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207 * This method grabs the Data with name <i>name</i> from the list and |
238
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208 * returns it. |
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209 * |
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210 * @param items A list of Data. |
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211 * @param name The name of the Data that we are searching for. |
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212 * |
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213 * @return the Data with the name <i>name</i>. |
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214 */ |
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215 @Override |
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216 protected Data getData(List<Data> data, String name) { |
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217 for (Data d: data) { |
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218 if (name.equals(d.getLabel())) { |
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219 return d; |
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220 } |
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221 } |
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222 |
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223 return null; |
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224 } |
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225 |
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226 |
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227 protected Canvas createWidget(DataList data) { |
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228 VLayout layout = new VLayout(); |
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229 container = new HLayout(); |
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230 |
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231 // The initial view will display the location input mode. |
238
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232 locationPanel = new DoubleArrayPanel( |
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233 MSG.unitLocation(), |
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234 getLocationValues(), |
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235 new BlurHandler(){public void onBlur(BlurEvent be) {}}); |
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236 |
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237 picker.getLocationTable().setAutoFetchData(true); |
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238 |
238
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239 container.addMember(locationPanel); |
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240 |
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241 layout.addMember(container); |
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242 |
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243 container.setMembersMargin(30); |
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244 |
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245 picker.prepareFilter(); |
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246 |
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247 helperContainer.addMember(picker.getLocationTable()); |
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248 helperContainer.addMember(picker.getFilterLayout()); |
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249 helperContainer.addMember(picker.getResultCountForm()); |
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250 createInputPanel(); |
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251 return layout; |
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252 } |
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253 |
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254 |
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255 @Override |
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256 public List<String> validate() { |
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257 List<String> errors = new ArrayList<String>(); |
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258 NumberFormat nf = NumberFormat.getDecimalFormat(); |
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259 |
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260 saveLocationValues(locationPanel); |
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261 |
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262 if (!locationPanel.validateForm()) { |
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263 errors.add(MSG.wrongFormat()); |
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264 return errors; |
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265 } |
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266 |
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267 double[] values = getLocationValues(); |
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268 double[] good = new double[values.length]; |
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269 int idx = 0; |
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270 |
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271 if (values.length > 1) { |
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272 errors.add(MSG.too_many_values()); |
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273 } |
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274 |
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275 for (double value: values) { |
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276 if (value < min || value > max) { |
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277 String tmp = MSG.error_validate_range(); |
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278 tmp = tmp.replace("$1", nf.format(value)); |
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279 tmp = tmp.replace("$2", nf.format(min)); |
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280 tmp = tmp.replace("$3", nf.format(max)); |
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281 errors.add(tmp); |
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282 } |
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283 else { |
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284 good[idx++] = value; |
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285 } |
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286 } |
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287 |
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288 double[] justGood = new double[idx]; |
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289 for (int i = 0; i < justGood.length; i++) { |
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290 justGood[i] = good[i]; |
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291 } |
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292 |
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293 if (!errors.isEmpty()) { |
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294 locationPanel.setValues(justGood); |
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295 } |
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296 |
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297 return errors; |
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298 } |
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299 |
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300 |
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301 /** Create simple DefaultData with single DataItem inside. */ |
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302 public DefaultData createDataArray(String name, String value) { |
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303 DataItem item = new DefaultDataItem( |
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304 name, |
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305 name, |
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306 value); |
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307 |
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308 return new DefaultData(name, |
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309 null, |
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310 null, |
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311 new DataItem[] {item}); |
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312 } |
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313 |
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314 |
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315 /** |
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316 * This method returns the selected data. |
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317 * |
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318 * @return the selected/inserted data. |
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319 */ |
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320 public Data[] getData() { |
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321 saveLocationValues(locationPanel); |
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322 double[] values = getLocationValues(); |
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323 Data[] data = new Data[values.length+1]; |
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324 |
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325 for (int i = 0; i < values.length; i++) { |
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326 data[i] = createDataArray(DATA_ITEM_NAME, |
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327 Double.valueOf(values[i]).toString()); |
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328 } |
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329 data[values.length] = createDataArray("ld_mode", "locations"); |
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330 |
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331 return data; |
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332 } |
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333 |
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334 |
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335 /** |
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336 * Validates and stores all values entered in the location mode. |
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337 * |
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338 * @param p The DoubleArrayPanel. |
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339 */ |
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340 protected void saveLocationValues(DoubleArrayPanel p) { |
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341 FormItem[] formItems = p.getFields(); |
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342 |
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343 for (FormItem item: formItems) { |
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344 if (item.getFieldName().equals(DoubleArrayPanel.FIELD_NAME)) { |
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345 saveLocationValue(p, item); |
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346 } |
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347 } |
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348 } |
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349 |
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350 |
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351 /** |
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352 * Validates and stores a value entered in the location mode. |
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353 * |
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354 * @param p The DoubleArrayPanel. |
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355 * @param item The item that needs to be validated. |
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356 */ |
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357 protected void saveLocationValue(DoubleArrayPanel p, FormItem item) { |
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358 if (p.validateForm(item)) { |
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359 setLocationValues(p.getInputValues(item)); |
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360 } |
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361 } |
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362 |
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363 |
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364 protected void createInputPanel() { |
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365 Config config = Config.getInstance(); |
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366 String url = config.getServerUrl(); |
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367 String river = ""; |
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368 |
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369 ArtifactDescription adescr = artifact.getArtifactDescription(); |
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370 DataList[] data = adescr.getOldData(); |
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371 |
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372 // Try to find a "river" data item to set the source for the |
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373 // list grid. |
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374 if (data != null && data.length > 0) { |
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375 for (int i = 0; i < data.length; i++) { |
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376 DataList dl = data[i]; |
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377 if (dl.getState().equals("state.winfo.river") || |
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378 dl.getState().equals("state.chart.river")) { |
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379 for (int j = 0; j < dl.size(); j++) { |
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380 Data d = dl.get(j); |
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381 DataItem[] di = d.getItems(); |
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382 if (di != null && di.length == 1) { |
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383 river = d.getItems()[0].getStringValue(); |
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384 break; |
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385 } |
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386 } |
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387 } |
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388 } |
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389 } |
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390 |
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391 picker.getLocationTable().setDataSource(new DistanceInfoDataSource( |
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392 url, /*river*/ "Saar" , "locations")); |
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393 } |
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394 |
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395 |
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396 /** Get the location values. */ |
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397 protected double[] getLocationValues() { |
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398 return values; |
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399 } |
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400 |
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401 |
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402 /** Sets Location values and updates the panel. */ |
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403 protected void setLocationValues(double[] values) { |
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404 this.values = values; |
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405 locationPanel.setValues(values); |
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406 } |
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407 |
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408 |
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409 /** |
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410 * Callback when an item from the input helper was clicked. |
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411 * Set the respective km-value in the location value field. |
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412 * @param e event passed. |
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413 */ |
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414 public void onRecordClick (RecordClickEvent e) { |
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415 Record record = e.getRecord(); |
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416 double[] selected = new double[1]; |
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417 try { |
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418 selected[0] = |
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419 Double.parseDouble(record.getAttribute("from")); |
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420 } |
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421 catch(NumberFormatException nfe) { |
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422 // Is there anything else to do here? |
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423 } |
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424 setLocationValues(selected); |
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425 } |
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426 } |
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427 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |