Mercurial > hg > STI-GWT

annotate src/econnect/wp3_3/client/widgets/table/DynamicStiTable.java @ 43:fad6fb60a2db CellTable

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refining of data in CellTable
author Sebastian Kruse <skruse@mpiwg-berlin.mpg.de>
date Fri, 07 Dec 2012 16:04:27 +0100
parents 20eb7596d466
children 5db587ba4b0f fc9061488e75
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1 package econnect.wp3_3.client.widgets.table;
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3 import java.util.ArrayList;
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4 import java.util.List;
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6 import com.google.gwt.user.cellview.client.CellTable;
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7 import com.google.gwt.user.cellview.client.SimplePager;
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8 import com.google.gwt.user.cellview.client.TextColumn;
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9 import com.google.gwt.user.client.rpc.AsyncCallback;
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10 import com.google.gwt.user.client.ui.Anchor;
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11 import com.google.gwt.user.client.ui.Button;
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12 import com.google.gwt.user.client.ui.FormPanel;
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13 import com.google.gwt.user.client.ui.Grid;
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14 import com.google.gwt.user.client.ui.Hidden;
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15 import com.google.gwt.user.client.ui.Image;
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16 import com.google.gwt.user.client.ui.Label;
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17 import com.google.gwt.user.client.ui.HTML;
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18 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
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19 import com.google.gwt.user.client.ui.TextBox;
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20 import com.google.gwt.view.client.ListDataProvider;
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21 import com.google.gwt.core.client.GWT;
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22 import com.google.gwt.event.dom.client.ClickHandler;
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23 import com.google.gwt.event.dom.client.ClickEvent;
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24 import com.google.gwt.event.dom.client.MouseOutEvent;
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25 import com.google.gwt.event.dom.client.MouseOverEvent;
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26 import com.google.gwt.event.dom.client.MouseOverHandler;
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27 import com.google.gwt.event.dom.client.MouseOutHandler;
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28 import com.google.gwt.http.client.URL;
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30 import econnect.wp3_3.client.core.ApplicationConstants;
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31 import econnect.wp3_3.client.core.DataObject;
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32 import econnect.wp3_3.client.core.DataSet;
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33 import econnect.wp3_3.client.core.StiConstants;
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34 import econnect.wp3_3.client.core.StiCore;
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35 import econnect.wp3_3.client.services.ExportWriterInterface;
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36 import econnect.wp3_3.client.services.ExportWriterInterfaceAsync;
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38 /**
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39 * Implementation of a dynamic table for one dataset
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40 */
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41 public class DynamicStiTable extends Grid {
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43 /**
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44 * The maximum number of rows of the table
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45 */
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46 private int maxRows = 10;
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47
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48 /**
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49 * The sti core component
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50 */
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51 private StiCore core;
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52
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53 /**
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54 * The index of the dataset
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55 */
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56 private int index;
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57
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58 /**
3
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59 * The dataset of this dynamic table
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60 */
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61 private DataSet dataSet;
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62
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63 /**
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64 * ArrayList that holds all elements that can be shown
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65 * (smaller than "dataSet" if showSelected)
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66 */
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67 private ArrayList<DataObject> actualObjectSet;
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68
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69 /**
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70 * Provider that hands the data to the table
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71 */
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72 private ListDataProvider<DataObject> dataProvider;
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73
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74 /**
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75 * CellTable which displays the data
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76 */
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77 private CellTable<DataObject> elementsTable;
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78
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79 /**
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80 * The dataobjects, which are presented at the actual page
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81 */
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82 //private DataObject[][] displayedObjects;
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83
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84 /**
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85 * The number-of-results label
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86 */
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87 private Label results;
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88
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89 /**
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90 * The image for show selected elements
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91 */
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92 private Image showSelected;
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94 /**
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95 * The image for show all elements
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96 */
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97 private Image showAll;
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98
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99 /**
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100 * This value tells the view status: 1 for showAll, -1 for showSelected, 0 otherwise
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101 */
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102 private int viewAll = 1;
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103
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104 /**
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105 * Anchor that holds the URL for the KML download
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106 */
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107 private Anchor aDownloadKML;
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108
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109 /**
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110 * RPC Interface for writing the KML file
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111 */
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112 private ExportWriterInterfaceAsync exportWriter;
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113
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114 /**
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115 * Constructor for initialization of the dynamic table
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116 *
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117 * @param core object to allow interaction with all javascript components
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118 * @param id id of the dataset
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119 */
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120 public DynamicStiTable( StiCore stiCore, final int id ){
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121
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122 final ApplicationConstants constants = (ApplicationConstants) GWT.create(ApplicationConstants.class);
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123 final StiConstants textConstants = (StiConstants) GWT.create(StiConstants.class);
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124
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125 this.resize(2,1);
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126 this.addStyleName("dataTable");
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127 this.addStyleName("center");
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128
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129 this.index = id;
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130 this.core = stiCore;
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131 this.dataSet = core.getDataSets().get(index);
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132 this.actualObjectSet = new ArrayList<DataObject>();
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133 setActualObjectSet();
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134
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135 showAll = new Image("images/viewAll"+(core.getColorId(index))+".png");
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136 showAll.setTitle(textConstants.showAll());
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137 showSelected = new Image("images/viewSelected"+(core.getColorId(index))+".png");
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138 showSelected.setTitle(textConstants.showSelected());
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139 showAll.addStyleName("selectedView");
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140 showAll.addStyleName("view");
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141 showSelected.addStyleName("view");
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142 showAll.addClickHandler(new ClickHandler() {
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143 public void onClick(ClickEvent event) {
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144 if( viewAll != 1 ){
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145 showSelected.removeStyleName("selectedView");
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146 showAll.addStyleName("selectedView");
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147 viewAll = 1;
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148 setActualObjectSet();
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149 }
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150 }
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151 });
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152 showSelected.addClickHandler(new ClickHandler() {
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153 public void onClick(ClickEvent event) {
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154 if( viewAll != -1 ){
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155 viewAll = -1;
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156 if( setActualObjectSet() ){
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157 showAll.removeStyleName("selectedView");
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158 showSelected.addStyleName("selectedView");
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159 }
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160 else {
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161 viewAll = 1;
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162 }
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163 }
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164 }
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165 });
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166
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167 Image storeSelected = new Image("images/storeSelected"+(core.getColorId(index))+".png");
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168 storeSelected.setTitle(textConstants.storeSelected());
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169 storeSelected.addStyleName("view");
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170 storeSelected.addClickHandler(new ClickHandler() {
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171 public void onClick(ClickEvent event) {
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172 core.storeSelected(id);
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173 }
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174 });
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175
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176 Grid showOptions = new Grid(1,3);
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177 showOptions.setWidget(0,0,showAll);
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178 showOptions.setWidget(0,1,showSelected);
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179 showOptions.setWidget(0,2,storeSelected);
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180
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181 final TextBox textualSearch = new TextBox();
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182 final Button search = new Button("go");
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183 final Image cancelImage = new Image(constants.cancelImage());
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184 final Image refineImage = new Image(constants.refineImage());
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185 final Grid buttons = new Grid(1,2);
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186 buttons.setWidget(0, 0, refineImage);
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187 buttons.setWidget(0, 1, cancelImage);
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188 final Grid refine = new Grid(1,3);
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189 refine.setWidget(0,0,textualSearch);
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190 refine.setWidget(0,1,search);
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191 search.addClickHandler(new ClickHandler() {
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192 public void onClick(ClickEvent event) {
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193 if( !textualSearch.getText().equals("") ){
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194 refineByText(textualSearch.getText());
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195 textualSearch.setEnabled(false);
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196 refine.setWidget(0, 1, buttons);
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197 }
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198 }
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199 });
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200 refineImage.addClickHandler(new ClickHandler() {
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201 public void onClick(ClickEvent event) {
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202 core.refine();
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203 }
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204 });
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205 cancelImage.addClickHandler(new ClickHandler() {
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206 public void onClick(ClickEvent event) {
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207 textualSearch.setEnabled(true);
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208 core.reset();
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209
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210 //TODO: das gibt es nun mehrfach im Code, sollte also in eine Funktion
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211 //�berfuhrt werden
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212 showSelected.removeStyleName("selectedView");
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213 showAll.addStyleName("selectedView");
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214 viewAll = 1;
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215 setActualObjectSet();
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216
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217 refine.setWidget(0, 1, search);
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218 }
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219 });
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220
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221 this.results = new Label();
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222 this.results.setStyleName("resultsLabel");
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223
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224 Label page = new Label(textConstants.page()+":");
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225 page.setStyleName("pageLabel");
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226
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227 //This anchor will hold the URL of the export-file
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228 //for download from the ExportServlet
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229 aDownloadKML = new Anchor("download KML");
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230 aDownloadKML.setVisible(false);
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231 aDownloadKML.addClickHandler(new ClickHandler() {
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232 public void onClick(ClickEvent event) {
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233 aDownloadKML.setVisible(false);
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234 }
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235 });
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236
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237 Image export = new Image(constants.exportImage());
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238 export.addClickHandler(new ClickHandler() {
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239 public void onClick(ClickEvent event) {
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240 //create KML file
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241 createKMLFile();
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242 }
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243 });
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244 export.addStyleName("export");
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245 export.setTitle(textConstants.exportDataSet());
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246
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247 Image delete = new Image(constants.deleteImage());
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248 delete.addClickHandler(new ClickHandler() {
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249 public void onClick(ClickEvent event) {
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250 core.deleteDataSet(index);
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251 }
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252 });
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253 delete.addStyleName("delete");
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254 delete.setTitle(textConstants.deleteDataSet());
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255
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256 Grid func = new Grid(1,3);
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257
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258 func.setWidget(0, 0, aDownloadKML);
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259 func.setWidget(0, 1, export);
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260 func.setWidget(0, 2, delete);
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261 func.addStyleName("center");
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262
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263 this.elementsTable = new CellTable<DataObject>();
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264
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265 dataProvider = new ListDataProvider<DataObject>();
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266 dataProvider.addDataDisplay(this.elementsTable);
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267
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268 TextColumn<DataObject> nameColumn = new TextColumn<DataObject>() {
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269 @Override
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270 public String getValue(DataObject object) {
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271 return object.getName();
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272 }
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273
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274 };
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275
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276 this.elementsTable.addColumn(nameColumn);
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277
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278 SimplePager pager = new SimplePager();
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279 pager.setDisplay(this.elementsTable);
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280
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281 dataProvider.setList(this.actualObjectSet);
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282
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283 this.setWidget(1, 0, this.elementsTable);
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284
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285 Grid tableControls = new Grid(1,5);
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286 tableControls.setWidget(0,0,showOptions);
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287 tableControls.setWidget(0,1,refine);
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288 tableControls.setWidget(0,2,this.results);
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289 tableControls.setWidget(0,3,pager);
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290 tableControls.setWidget(0,4,func);
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291 tableControls.setStyleName("tableControls");
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292
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293 this.setWidget(0, 0, tableControls);
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294
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295 tableControls.getCellFormatter().setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
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296
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297 this.getCellFormatter().setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
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298 this.getCellFormatter().setHorizontalAlignment(1, 0, HasHorizontalAlignment.ALIGN_CENTER);
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299 this.getCellFormatter().setWidth(1, 0, "100%");
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300 }
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301
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302 /**
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303 * Sets the actual object set; depends on the showAll and showSelected selection
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304 *
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305 * @return boolean value, if there are selected objects
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306 */
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307 private boolean setActualObjectSet(){
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308
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309 boolean dataSetWasEmpty = false;
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310
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311 if( viewAll == -1 ){
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312
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313 this.actualObjectSet.clear();
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314
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315 for( int i=0; i<this.dataSet.getObjects().length(); i++){
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316 DataObject object = this.dataSet.getObjects().get(i);
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317 if( object.isSelected() ){
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318 this.actualObjectSet.add(object);
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319 }
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320 }
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321 if( this.actualObjectSet.size() == 0 ){
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322 //TODO: Wenn die derzeitige Auswahl _keine_ Elemente
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323 //enth�lt, werden _alle_ angezeigt. Ist das sinnvoll?
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324 dataSetWasEmpty = true;
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325 this.viewAll = 1;
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326 }
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327 }
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328 if( this.viewAll == 1 ){
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329 this.actualObjectSet.clear();
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330 for( int i=0; i<this.dataSet.getObjects().length(); i++){
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331 this.actualObjectSet.add(this.dataSet.getObjects().get(i));
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332 }
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333 }
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334
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335 //if the dataProvider already exists, refresh the
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336 //displayed data
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337 if (this.dataProvider != null) {
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338 this.dataProvider.refresh();
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339
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340 this.elementsTable.setRowCount(this.actualObjectSet.size());
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341 }
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342
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343 if (dataSetWasEmpty)
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344 return false;
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345 else
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346 return true;
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347 }
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348
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349 /**
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350 * Creates a (preliminary) KML file from the data in the current data set
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351 */
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352 private void createKMLFile(){
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353 String kmlContent = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><kml xmlns=\"http://www.opengis.net/kml/2.2\"><Document>";
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354
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355 for( int i=0; i<this.dataSet.getObjects().length(); i++){
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356 DataObject currentDataObject = this.dataSet.getObjects().get(i);
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357
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358 String name = currentDataObject.getName();
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359 String description = currentDataObject.getDescription();
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360 String place = currentDataObject.getPlace();
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361 String lat = currentDataObject.getLat();
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362 String lon = currentDataObject.getLon();
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363 String timeStamp = currentDataObject.getTimeStamp();
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364 String timeSpanStart = currentDataObject.getTimeSpanStart();
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365 String timeSpanEnd = currentDataObject.getTimeSpanEnd();
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366
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367 String kmlEntry = "<Placemark>";
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368
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369 kmlEntry += "<name><![CDATA[" + name + "]]></name>";
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370 kmlEntry += "<address><![CDATA[" + place + "]]></address>";
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371 kmlEntry += "<description><![CDATA[" + description + "]]></description>";
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372 kmlEntry += "<Point><coordinates>" + lon + "," + lat + "</coordinates></Point>";
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373
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374 if ( (timeStamp != null) && (timeStamp != "undefined") ) {
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375 kmlEntry += "<TimeStamp><when>" + timeStamp + "</when></TimeStamp>";
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376 } else {
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377 kmlEntry += "<TimeSpan><begin>" + timeSpanStart + "</begin><end>" + timeSpanEnd + "</end></TimeSpan>";
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378 }
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379
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380 kmlEntry += "</Placemark>";
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381
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382 kmlContent += kmlEntry;
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383 }
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384
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385 kmlContent += "</Document></kml>";
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386
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387 exportWriter = GWT.create(ExportWriterInterface.class);
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388
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389 exportWriter.writeKMLFile(kmlContent,
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390 new AsyncCallback<String>() {
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391 public void onFailure(Throwable caught) {
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392 //TODO: error message in layover?
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393 //there needs to be an error-window for KML parser failures anyway
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394 //this one should be used
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395 int i = 1;
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396 }
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397 public void onSuccess(String exportFileName) {
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398
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399 String url = GWT.getModuleBaseURL();
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400 url = url + "ExportServlet?ExportedFilename=" + URL.encode(exportFileName);
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401
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402 aDownloadKML.setHref(url);
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403 aDownloadKML.setVisible(true);
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404 }
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405 }
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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 * Refines the currently selected dataset (table) by the search term entered.
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411 *
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412 */
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413 private void refineByText(String searchString){
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414
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415 String lowerCaseSearchString = searchString.toLowerCase();
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416
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417 for( int i=0; i<this.dataSet.getObjects().length(); i++){
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418 DataObject currentDataObject = this.dataSet.getObjects().get(i);
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419
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420 String name = currentDataObject.getName();
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421 String description = currentDataObject.getDescription();
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422 String place = currentDataObject.getPlace();
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423
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424 if ( name.toLowerCase().contains(lowerCaseSearchString) ||
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425 description.toLowerCase().contains(lowerCaseSearchString) ||
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426 place.toLowerCase().contains(lowerCaseSearchString) )
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427 currentDataObject.setPercentage(1);
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Sebastian Kruse <skruse@mpiwg-berlin.mpg.de>
parents: 27
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428 else
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parents: 27
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429 currentDataObject.setPercentage(0);
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Sebastian Kruse <skruse@mpiwg-berlin.mpg.de>
parents: 27
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430 }
1e95995ddbb2 re-added the ability to refine the dataset by a (very simple) text search
Sebastian Kruse <skruse@mpiwg-berlin.mpg.de>
parents: 27
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431
1e95995ddbb2 re-added the ability to refine the dataset by a (very simple) text search
Sebastian Kruse <skruse@mpiwg-berlin.mpg.de>
parents: 27
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432 setActualObjectSet();
3
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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433 }
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parents:
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434
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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435 /**
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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436 * Updates all cells of the actual page
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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437 *
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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438 * @param hover if there was a hover selection which caused to trigger this function
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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439 */
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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440 public void updateView(boolean hover){
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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441 if( !hover && this.viewAll == -1 ){
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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442 showSelected.removeStyleName("selectedView");
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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443 this.viewAll = 0;
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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444 }
40
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parents: 30
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445 /*
3
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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446 for( int i=0; i<this.displayedObjects.length; i++ ){
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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447 for( int j=0; j<this.displayedObjects[i].length; j++ ){
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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448 if( this.displayedObjects[i][j] != null && this.displayedObjects[i][j].getStatus() ){
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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449 updateCell(i,j);
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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450 }
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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451 }
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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452 }
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parents: 30
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453 */
3
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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454 }
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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455
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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456 public String getTermIdentifier() {
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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457 return this.dataSet.getTermIdentifier();
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StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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458 }
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
diff changeset
459
cf06b77a8bbd Committed branch of the e4D repos sti-gwt branch 16384.
StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
parents:
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460 }