Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/SingleLocationPanel.java @ 238:234c78a91c15
Added new UI provider for single location selection.
flys-client/trunk@1806 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Raimund Renkert <raimund.renkert@intevation.de> |
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date | Tue, 03 May 2011 13:52:14 +0000 |
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children | f9ca49e59fb6 |
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.List; |
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4 |
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5 import com.google.gwt.core.client.GWT; |
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6 import com.google.gwt.user.client.rpc.AsyncCallback; |
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7 |
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8 import com.smartgwt.client.widgets.Canvas; |
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9 import com.smartgwt.client.widgets.Label; |
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10 import com.smartgwt.client.widgets.form.fields.events.BlurHandler; |
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11 import com.smartgwt.client.widgets.form.fields.events.BlurEvent; |
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12 import com.smartgwt.client.widgets.form.fields.FormItem; |
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13 import com.smartgwt.client.widgets.layout.HLayout; |
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14 import com.smartgwt.client.widgets.layout.VLayout; |
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15 import com.smartgwt.client.widgets.grid.ListGrid; |
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16 import com.smartgwt.client.widgets.grid.ListGridField; |
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17 import com.smartgwt.client.widgets.grid.ListGridRecord; |
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18 import com.smartgwt.client.widgets.grid.events.RecordClickHandler; |
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19 import com.smartgwt.client.widgets.grid.events.RecordClickEvent; |
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20 |
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21 import com.smartgwt.client.types.ListGridFieldType; |
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22 |
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23 import de.intevation.flys.client.shared.model.Data; |
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24 import de.intevation.flys.client.shared.model.DataItem; |
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25 import de.intevation.flys.client.shared.model.DataList; |
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26 import de.intevation.flys.client.shared.model.DefaultData; |
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27 import de.intevation.flys.client.shared.model.DefaultDataItem; |
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28 import de.intevation.flys.client.shared.model.DistanceInfoObject; |
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29 import de.intevation.flys.client.shared.model.DistanceInfoRecord; |
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30 import de.intevation.flys.client.shared.model.ArtifactDescription; |
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31 |
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32 import de.intevation.flys.client.client.services.DistanceInfoService; |
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33 import de.intevation.flys.client.client.services.DistanceInfoServiceAsync; |
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34 import de.intevation.flys.client.client.FLYSConstants; |
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35 import de.intevation.flys.client.client.FLYSImages; |
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36 import de.intevation.flys.client.client.Config; |
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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 locations. |
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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 { |
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47 /** The message class that provides i18n strings.*/ |
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48 protected FLYSConstants MESSAGES = GWT.create(FLYSConstants.class); |
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49 |
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50 /** The interface that provides the image resources. */ |
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51 private FLYSImages IMAGES = GWT.create(FLYSImages.class); |
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52 |
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53 /** The DistanceInfoService used to retrieve locations about rivers.*/ |
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54 protected DistanceInfoServiceAsync distanceInfoService = |
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55 GWT.create(DistanceInfoService.class); |
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56 |
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57 /** A container that will contain the location or the distance panel.*/ |
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58 protected HLayout container; |
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59 |
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60 /** The values entered in the location mode.*/ |
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61 protected double[] values; |
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62 |
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63 /** The input panel for locations */ |
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64 protected DoubleArrayPanel locationPanel; |
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65 |
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66 /** The locations table */ |
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67 protected ListGrid locationTable; |
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68 |
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69 /** The table data. */ |
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70 protected DistanceInfoObject[] tableData; |
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71 |
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72 /** |
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73 * Creates a new LocationDistancePanel instance. |
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74 */ |
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75 public SingleLocationPanel() { |
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76 locationTable = new ListGrid(); |
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77 } |
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78 |
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79 |
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80 /** |
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81 * This method creates a widget that contains a label, a panel with |
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82 * checkboxes to switch the input mode between location and distance input, |
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83 * and a the mode specific panel. |
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84 * |
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85 * @param data The data that might be inserted. |
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86 * |
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87 * @return a panel. |
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88 */ |
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89 public Canvas create(DataList data) { |
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90 VLayout layout = new VLayout(); |
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91 layout.setMembersMargin(10); |
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92 |
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93 initDefaults(data); |
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94 |
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95 Label label = new Label(MESSAGES.location ()); |
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96 Canvas widget = createWidget(data); |
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97 Canvas submit = getNextButton(); |
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98 |
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99 createLocationTable(); |
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100 |
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101 widget.setHeight(50); |
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102 label.setHeight(25); |
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103 |
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104 layout.addMember(label); |
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105 layout.addMember(widget); |
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106 layout.addMember(submit); |
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107 |
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108 return layout; |
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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 * This method creates a table that contains the location values. |
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114 */ |
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115 protected void createLocationTable() { |
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116 locationTable.setWidth(450); |
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117 locationTable.setShowRecordComponents(true); |
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118 locationTable.setShowRecordComponentsByCell(true); |
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119 locationTable.setHeight(300); |
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120 |
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121 ListGridField addLocation = new ListGridField ("", ""); |
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122 addLocation.setType (ListGridFieldType.ICON); |
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123 addLocation.setWidth ("30"); |
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124 addLocation.addRecordClickHandler (new RecordClickHandler () { |
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125 public void onRecordClick (RecordClickEvent e) { |
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126 ListGridRecord[] records = locationTable.getSelection(); |
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127 double[] selected = new double[1]; |
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128 selected[0] = records[0].getAttributeAsDouble("from"); |
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129 setLocationValues(selected); |
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130 } |
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131 }); |
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132 addLocation.setCellIcon (IMAGES.markerGreen ().getURL ()); |
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133 |
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134 ListGridField ldescr = new ListGridField("description", |
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135 MESSAGES.description()); |
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136 ldescr.setType(ListGridFieldType.TEXT); |
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137 ldescr.setWidth("*"); |
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138 ListGridField lside = new ListGridField("riverside", |
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139 MESSAGES.riverside()); |
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140 lside.setType(ListGridFieldType.TEXT); |
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141 lside.setWidth(60); |
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142 ListGridField loc = new ListGridField("from", MESSAGES.location()); |
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143 loc.setType(ListGridFieldType.TEXT); |
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144 loc.setWidth(80); |
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145 locationTable.setFields(addLocation, ldescr, loc, lside); |
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146 } |
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147 |
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148 |
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149 public Canvas createOld(DataList dataList) { |
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150 List<Data> items = dataList.getAll(); |
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151 |
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152 HLayout layout = new HLayout(); |
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153 layout.setWidth("400px"); |
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154 |
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155 Label label = new Label(dataList.getLabel()); |
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156 label.setWidth("200px"); |
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157 |
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158 Canvas back = getBackButton(dataList.getState()); |
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159 |
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160 Label selected = new Label("testtext"); |
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161 selected.setWidth("130px"); |
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162 |
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163 layout.addMember(label); |
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164 layout.addMember(selected); |
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165 layout.addMember(back); |
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166 |
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167 return layout; |
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168 } |
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169 |
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170 |
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171 /** |
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172 * This method reads the default values defined in the DataItems of the Data |
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173 * objects in <i>list</i>. |
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174 * |
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175 * @param list The DataList container that stores the Data objects. |
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176 */ |
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177 protected void initDefaults(DataList list) { |
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178 } |
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179 |
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180 |
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181 /** |
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182 * This method greps the Data with name <i>name</i> from the list and |
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183 * returns it. |
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184 * |
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185 * @param items A list of Data. |
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186 * @param name The name of the Data that we are searching for. |
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187 * |
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188 * @return the Data with the name <i>name</i>. |
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189 */ |
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190 protected Data getData(List<Data> data, String name) { |
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191 for (Data d: data) { |
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192 if (name.equals(d.getLabel())) { |
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193 return d; |
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194 } |
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195 } |
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196 |
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197 return null; |
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198 } |
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199 |
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200 |
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201 protected Canvas createWidget(DataList data) { |
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202 VLayout layout = new VLayout(); |
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203 container = new HLayout(); |
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204 |
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205 // the initial view will display the location input mode |
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206 locationPanel = new DoubleArrayPanel( |
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207 MESSAGES.unitLocation(), |
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208 getLocationValues(), |
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209 new BlurHandler(){public void onBlur(BlurEvent be) {}}); |
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210 container.addMember(locationPanel); |
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211 |
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212 layout.addMember(container); |
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213 |
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214 container.setMembersMargin(30); |
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215 |
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216 container.addMember(locationTable); |
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217 createInputPanel(); |
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218 return layout; |
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219 } |
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220 |
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221 |
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222 /** |
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223 * This method returns the selected data. |
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224 * |
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225 * @return the selected/inserted data. |
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226 */ |
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227 public Data[] getData() { |
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228 double[] values = getLocationValues(); |
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229 Data[] data = new Data[values.length]; |
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230 DataItem item = new DefaultDataItem(); |
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231 for (int i = 0; i < values.length; i++) { |
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232 item = new DefaultDataItem( |
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233 "ld_locations", |
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234 "ld_locations", |
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235 Double.valueOf(values[i]).toString()); |
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236 data[i] = new DefaultData( |
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237 "ld_locations", |
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238 null, |
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239 null, |
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240 new DataItem[] {item}); |
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241 } |
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242 return data; |
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243 } |
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244 |
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245 |
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246 |
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247 |
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248 /** |
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249 * Validates and stores all values entered in the location mode. |
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250 * |
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251 * @param p The DoubleArrayPanel. |
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252 */ |
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253 protected void saveLocationValues(DoubleArrayPanel p) { |
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254 FormItem[] formItems = p.getFields(); |
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255 |
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256 for (FormItem item: formItems) { |
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257 if (item.getFieldName().equals(DoubleArrayPanel.FIELD_NAME)) { |
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258 saveLocationValue(p, item); |
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259 } |
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260 } |
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261 } |
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262 |
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263 |
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264 /** |
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265 * Validates and stores a value entered in the location mode. |
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266 * |
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267 * @param p The DoubleArrayPanel. |
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268 * @param item The item that needs to be validated. |
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269 */ |
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270 protected void saveLocationValue(DoubleArrayPanel p, FormItem item) { |
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271 if (p.validateForm(item)) { |
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272 setLocationValues(p.getInputValues(item)); |
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273 } |
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274 } |
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275 |
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276 |
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277 protected void createInputPanel() { |
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278 Config config = Config.getInstance(); |
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279 String url = config.getServerUrl(); |
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280 String locale = config.getLocale (); |
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281 String river = ""; |
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282 |
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283 ArtifactDescription adescr = artifact.getArtifactDescription(); |
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284 DataList[] data = adescr.getOldData(); |
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285 |
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286 if (data != null && data.length > 0) { |
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287 for (int i = 0; i < data.length; i++) { |
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288 DataList dl = data[i]; |
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289 if (dl.getState().equals("state.winfo.river")) { |
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290 for (int j = 0; j < dl.size(); j++) { |
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291 Data d = dl.get(j); |
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292 DataItem[] di = d.getItems(); |
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293 if (di != null && di.length == 1) { |
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294 river = d.getItems()[0].getStringValue(); |
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295 } |
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296 } |
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297 } |
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298 } |
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299 } |
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300 |
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301 distanceInfoService.getDistanceInfo(url, locale, river, |
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302 new AsyncCallback<DistanceInfoObject[]>() { |
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303 public void onFailure(Throwable caught) { |
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304 GWT.log("Could not recieve location informations."); |
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305 GWT.log(caught.getMessage()); |
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306 } |
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307 |
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308 public void onSuccess(DistanceInfoObject[] di) { |
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309 int num = di != null ? di.length :0; |
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310 GWT.log("Recieved " + num + " location informations."); |
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311 |
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312 if (num == 0) { |
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313 return; |
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314 } |
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315 tableData = di; |
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316 updateLocationInfo(di); |
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317 } |
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318 } |
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319 ); |
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320 } |
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321 |
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322 |
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323 protected void updateLocationInfo(DistanceInfoObject[] di) { |
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324 int i = 0; |
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325 for (DistanceInfoObject dio: di) { |
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326 if (dio.getTo() != null) { |
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327 locationTable.addData(new DistanceInfoRecord(dio)); |
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328 } |
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329 } |
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330 return; |
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331 } |
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332 |
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333 |
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334 protected double[] getLocationValues() { |
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335 return values; |
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336 } |
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337 |
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338 |
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339 protected void setLocationValues(double[] values) { |
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340 this.values = values; |
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341 locationPanel.setValues(values); |
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342 } |
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343 } |
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344 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |