Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/LocationPicker.java @ 4221:480de0dbca8e

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Extended location input helper. The locationpicker has now an attribute whether the input is distance or location to display one or two clickable columns. Replaced the record click handler with cell click handler.
author Raimund Renkert <rrenkert@intevation.de>
date Tue, 23 Oct 2012 13:17:20 +0200
parents 99bd77501188
children b195fede1c3b
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.LinkedHashMap;
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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.i18n.client.NumberFormat;
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7 import com.smartgwt.client.data.AdvancedCriteria;
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8 import com.smartgwt.client.data.Criteria;
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9 import com.smartgwt.client.data.Criterion;
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10 import com.smartgwt.client.types.Alignment;
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11 import com.smartgwt.client.types.ListGridFieldType;
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12 import com.smartgwt.client.types.OperatorId;
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13 import com.smartgwt.client.widgets.form.DynamicForm;
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14 import com.smartgwt.client.widgets.form.fields.SelectItem;
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15 import com.smartgwt.client.widgets.form.fields.StaticTextItem;
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16 import com.smartgwt.client.widgets.form.fields.events.ChangedEvent;
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17 import com.smartgwt.client.widgets.form.fields.events.ChangedHandler;
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18 import com.smartgwt.client.widgets.grid.CellFormatter;
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19 import com.smartgwt.client.widgets.grid.ListGrid;
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20 import com.smartgwt.client.widgets.grid.ListGridField;
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21 import com.smartgwt.client.widgets.grid.ListGridRecord;
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22 import com.smartgwt.client.widgets.grid.events.CellClickHandler;
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23 import com.smartgwt.client.widgets.layout.HLayout;
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24
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25 import de.intevation.flys.client.client.FLYSConstants;
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26 import de.intevation.flys.client.client.event.FilterHandler;
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27 import de.intevation.flys.client.client.event.RangeFilterEvent;
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28 import de.intevation.flys.client.client.event.StringFilterEvent;
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29
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30 /**
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31 * Bundle widgets and handler for a lacation input helper.
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32 *
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33 * Note that the construction is weird and driven by issues that arose due to
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34 * reasons not understood.
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35 */
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36 public class LocationPicker
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37 implements FilterHandler
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38 {
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39 /** The message class that provides i18n strings.*/
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40 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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41
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42 /** The locations table. */
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43 protected ListGrid locationTable;
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44
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45 protected HLayout filterLayout;
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46
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47 DynamicForm resultCountForm;
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48
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49 CellClickHandler handler;
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50
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51 boolean isDistance = false;
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52
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53 /** Text to show number of matched items when filtered. */
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54 protected StaticTextItem filterResultCount;
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55
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56
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57 public LocationPicker(CellClickHandler handler) {
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58 locationTable = new ListGrid();
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59 locationTable.setShowHeaderContextMenu(false);
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60 this.handler = handler;
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61 }
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62
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63 public void prepareFilter() {
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64
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65 filterResultCount = new StaticTextItem(MSG.resultCount());
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66 filterResultCount.setTitleAlign(Alignment.LEFT);
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67 filterResultCount.setTitleStyle("color: #000");
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68
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69 final TableFilter filter = new TableFilter();
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70 filter.setHeight("30px");
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71 filter.addFilterHandler(this);
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72
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73 final RangeTableFilter filterRange = new RangeTableFilter();
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74 filterRange.setHeight("30px");
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75 filterRange.addFilterHandler(this);
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76 filterRange.setVisible(false);
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77
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78 SelectItem filterCriteria = new SelectItem();
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79 filterCriteria.setShowTitle(false);
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80 filterCriteria.setWidth(100);
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81 filterCriteria.addChangedHandler(new ChangedHandler() {
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82 public void onChanged(ChangedEvent e) {
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83 if(e.getValue().toString().equals("range")) {
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84 filterRange.setVisible(true);
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85 filter.setVisible(false);
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86 filter.clear();
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87 filterResultCount.setValue("");
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88 }
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89 else {
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90 filterRange.setVisible(false);
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91 filterRange.clear();
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92 filter.setVisible(true);
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93 filterResultCount.setValue("");
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94 }
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95 }
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96 });
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97
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98 LinkedHashMap<String, String> filterMap =
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99 new LinkedHashMap<String, String>();
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100 filterMap.put("description", MSG.description());
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101 filterMap.put("range", MSG.range());
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102 filterCriteria.setValueMap(filterMap);
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103 filterCriteria.setValue("description");
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104
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105 DynamicForm form = new DynamicForm();
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106 form.setFields(filterCriteria);
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107
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108 resultCountForm = new DynamicForm();
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109 resultCountForm.setFields(filterResultCount);
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110
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111 filterLayout = new HLayout();
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112 filterLayout.addMember(form);
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113 filterLayout.addMember(filter);
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114 filterLayout.addMember(filterRange);
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115 }
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116
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117
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118 /** Access the main widget, a table in which locations can be chosen. */
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119 public ListGrid getLocationTable() {
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120 return locationTable;
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121 }
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122
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123
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124 /** Access the 'form' that shows the filter result count. */
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125 public DynamicForm getResultCountForm() {
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126 return resultCountForm;
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127 }
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128
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129
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130 /** Access the layout containing filter stuff. */
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131 public HLayout getFilterLayout() {
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132 return filterLayout;
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133 }
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134
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135
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136 /**
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137 * This method creates a table that contains the location values.
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138 */
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139 public void createLocationTable(/*RecordClickHandler handler*/) {
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140 GWT.log("Create Location Table in LocationPicker");
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141
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142 String baseUrl = GWT.getHostPageBaseURL();
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143
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144 locationTable.setWidth100();
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145 locationTable.setShowRecordComponents(true);
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146 locationTable.setShowRecordComponentsByCell(true);
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147 locationTable.setHeight100();
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148 locationTable.setEmptyMessage(MSG.empty_filter());
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149 locationTable.setCanReorderFields(false);
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150
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151 ListGridField addLocation = new ListGridField ("", "");
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152 addLocation.setType (ListGridFieldType.ICON);
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153 addLocation.setWidth (20);
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154 addLocation.setCellIcon (baseUrl + MSG.markerGreen());
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155 ListGridField addTo = new ListGridField ("", "");
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156 addTo.setType (ListGridFieldType.ICON);
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157 addTo.setWidth (20);
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158 addTo.setCellIcon (baseUrl + MSG.markerRed());
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159
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160 ListGridField ldescr = new ListGridField("description",
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161 MSG.description());
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162 ldescr.setType(ListGridFieldType.TEXT);
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163 ldescr.setWidth("*");
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164 ListGridField lside = new ListGridField("riverside",
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165 MSG.riverside());
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166 lside.setType(ListGridFieldType.TEXT);
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167 lside.setWidth("10%");
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168
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169 ListGridField loc = new ListGridField("from", MSG.location());
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170 loc.setCellFormatter(new CellFormatter() {
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171 public String format(
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172 Object value,
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173 ListGridRecord record,
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174 int rowNum, int colNum) {
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175 if (value == null) return null;
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176 try {
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177 NumberFormat nf;
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178 double v = Double.parseDouble((String)value);
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179 nf = NumberFormat.getFormat("###0.00##");
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180 return nf.format(v);
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181 }
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182 catch (Exception e) {
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183 return value.toString();
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184 }
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185 }
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186 }
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187 );
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188 loc.setType(ListGridFieldType.FLOAT);
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189
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190 loc.setWidth("10%");
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191
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192 ListGridField bottom =
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193 new ListGridField("bottom", MSG.bottom_edge());
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194 bottom.setType(ListGridFieldType.TEXT);
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195 bottom.setWidth("10%");
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196
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197 ListGridField top =
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198 new ListGridField("top", MSG.top_edge());
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199 top.setType(ListGridFieldType.TEXT);
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200 top.setWidth("10%");
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201 locationTable.addCellClickHandler(handler);
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202 if (isDistance) {
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203 locationTable.setFields(
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204 addLocation, addTo, ldescr, loc, lside, bottom, top);
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205 }
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206 else {
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207 locationTable.setFields(
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208 addLocation, ldescr, loc, lside, bottom, top);
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209 }
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210 }
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211
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212
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213 @Override
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214 public void onFilterCriteriaChanged(StringFilterEvent event) {
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215 String search = event.getFilter();
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216
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217 if (search != null && search.length() > 0) {
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218 Criteria c = new Criteria("description", search);
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219 locationTable.filterData(c);
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220 filterResultCount.setValue(locationTable.getRecords().length);
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221 }
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222 else {
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99bd77501188 Issue 514.
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223 locationTable.clearCriteria();
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224 filterResultCount.setValue("");
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225 }
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226 }
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227
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228
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diff changeset
229 @Override
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230 public void onFilterCriteriaChanged(RangeFilterEvent event) {
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231 Float from = event.getFrom() - 0.001f;
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diff changeset
232 Float to = event.getTo() + 0.001f;
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233
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diff changeset
234 Criterion combinedFilter = null;
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235 if (from.equals(Float.NaN) && to.equals(Float.NaN)) {
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236 locationTable.clearCriteria();
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237 filterResultCount.setValue("");
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238 return;
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239 }
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240 else if (from.equals(Float.NaN)) {
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241 combinedFilter =
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242 new Criterion("from", OperatorId.LESS_OR_EQUAL, to);
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243 }
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244 else if (to.equals(Float.NaN)) {
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diff changeset
245 combinedFilter =
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diff changeset
246 new Criterion("from", OperatorId.GREATER_OR_EQUAL, from);
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247 }
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diff changeset
248 else {
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diff changeset
249 combinedFilter =
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diff changeset
250 new AdvancedCriteria(OperatorId.AND, new Criterion[] {
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diff changeset
251 new Criterion("from", OperatorId.GREATER_OR_EQUAL, from),
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252 new Criterion("from", OperatorId.LESS_OR_EQUAL, to)
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253 });
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254 }
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diff changeset
255 locationTable.filterData(combinedFilter);
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diff changeset
256 filterResultCount.setValue(locationTable.getRecords().length);
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diff changeset
257 }
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258
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259 public void setIsDistance(boolean value) {
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diff changeset
260 this.isDistance = value;
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261 }
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262
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263 public boolean isDistance() {
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264 return this.isDistance;
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265 }
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266 }
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267 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org