Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/SingleLocationPanel.java @ 238:234c78a91c15

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Added new UI provider for single location selection. flys-client/trunk@1806 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Tue, 03 May 2011 13:52:14 +0000
parents
children f9ca49e59fb6
rev   line source
238
234c78a91c15 Added new UI provider for single location selection.
Raimund Renkert <raimund.renkert@intevation.de>
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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 :
http://dive4elements.wald.intevation.org