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annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/ProjectList.java @ 220:35094660f91a

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Implemented a context menu for the project list. flys-client/trunk@1663 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 11 Apr 2011 15:38:43 +0000
parents b92281182c6b
children 9040663aee01
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 com.google.gwt.core.client.GWT;
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4 import com.google.gwt.user.client.rpc.AsyncCallback;
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6 import com.smartgwt.client.util.SC;
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7 import com.smartgwt.client.widgets.Canvas;
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8 import com.smartgwt.client.widgets.Label;
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9 import com.smartgwt.client.widgets.grid.ListGrid;
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10 import com.smartgwt.client.widgets.grid.ListGridField;
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11 import com.smartgwt.client.widgets.grid.ListGridRecord;
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12 import com.smartgwt.client.widgets.grid.events.RowContextClickEvent;
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13 import com.smartgwt.client.widgets.grid.events.RowContextClickHandler;
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14 import com.smartgwt.client.widgets.layout.VLayout;
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15 import com.smartgwt.client.widgets.menu.Menu;
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16 import com.smartgwt.client.widgets.menu.MenuItem;
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17 import com.smartgwt.client.widgets.menu.events.MenuItemClickEvent;
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18 import com.smartgwt.client.widgets.menu.events.ClickHandler;
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19 import com.smartgwt.client.types.VerticalAlignment;
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21 import de.intevation.flys.client.shared.model.Collection;
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22 import de.intevation.flys.client.shared.model.CollectionRecord;
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23 import de.intevation.flys.client.shared.model.User;
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25 import de.intevation.flys.client.client.Config;
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26 import de.intevation.flys.client.client.FLYSConstants;
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27 import de.intevation.flys.client.client.event.CollectionChangeEvent;
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28 import de.intevation.flys.client.client.event.CollectionChangeHandler;
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29 import de.intevation.flys.client.client.services.UserCollectionsService;
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30 import de.intevation.flys.client.client.services.UserCollectionsServiceAsync;
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32
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33 /**
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34 * The project list shows a list of projects of a specific user.
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35 *
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36 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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37 */
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38 public class ProjectList
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39 extends VLayout
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40 implements CollectionChangeHandler
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41 {
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42 /** The interface that provides i18n messages. */
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43 private FLYSConstants messages = GWT.create(FLYSConstants.class);
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45 /** The UserService used to retrieve information about the current user. */
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46 protected UserCollectionsServiceAsync userCollectionsService =
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47 GWT.create(UserCollectionsService.class);
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48
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49 /** The user whose projects should be displayed.*/
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50 protected User user;
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51
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52 /** The grid that contains the project rows.*/
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53 protected ListGrid grid;
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54
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55 /**
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56 * The default constructor that creates a new ProjectList for a specific
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57 * user.
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58 *
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59 * @param user The user.
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60 */
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61 public ProjectList(User user) {
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62 this.user = user;
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63
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64 grid = new CollectionGrid();
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65 initGrid();
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66 init();
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67
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68 updateUserCollections();
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69 }
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71
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72 protected void initGrid() {
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73 grid.setEmptyMessage(messages.no_projects());
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74 grid.setLoadingDataMessage(messages.load_projects());
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75 grid.setShowRecordComponents(true);
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76 grid.setShowRecordComponentsByCell(true);
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77 grid.setCanRemoveRecords(false);
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78 grid.setShowHeader(false);
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79 grid.setWidth100();
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80 grid.setHeight100();
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81
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82 ListGridField date = new ListGridField("date", "date");
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83 ListGridField name = new ListGridField("name", "name");
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84
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85 date.setWidth(100);
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86 name.setWidth(195);
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88 grid.setFields(date, name);
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89
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90 grid.addRowContextClickHandler(new RowContextClickHandler() {
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91 public void onRowContextClick(RowContextClickEvent event) {
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92 CollectionRecord record = (CollectionRecord) event.getRecord();
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93
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94 Menu menu = createContextMenu(record);
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95 grid.setContextMenu(menu);
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96 menu.showContextMenu();
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97
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98 event.cancel();
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99 }
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100 });
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101 }
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102
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103
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104 /**
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105 * Creates a new context menu that interacts with a CollectionRecord.
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106 *
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107 * @param record The selected record.
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108 *
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109 * @return the context menu with operations that interact with
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110 * <i>record</i>.
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111 */
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112 protected Menu createContextMenu(final CollectionRecord record) {
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113 Menu menu = new Menu();
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114
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115 MenuItem open = new MenuItem(messages.open_project());
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116 open.addClickHandler(new ClickHandler() {
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117 public void onClick(MenuItemClickEvent evt) {
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118 SC.say("Open project: " + record.getName());
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119 }
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120 });
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121
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122 MenuItem del = new MenuItem(messages.delete_project());
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123 del.addClickHandler(new ClickHandler() {
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124 public void onClick(MenuItemClickEvent evt) {
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125 SC.warn("Removing projects is not implemented.");
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126 }
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127 });
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128
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129 menu.addItem(open);
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130 menu.addItem(del);
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131
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132 return menu;
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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 * The init() method handles the layout stuff for this widget.
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138 */
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139 protected void init() {
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140 setWidth(300);
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141 setHeight100();
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142 setShowResizeBar(true);
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143 setShowEdges(false);
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144 setLayoutMargin(0);
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145 setLayoutAlign(VerticalAlignment.TOP);
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146
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147 Label title = new Label(messages.projects());
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148 title.setHeight("20");
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149 title.setMargin(5);
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150 title.setWidth100();
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151 title.setStyleName("fontLightSmall");
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152
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153 Canvas titleWrapper = new Canvas();
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154 titleWrapper.setStyleName("bgBlueDark");
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155 titleWrapper.setWidth100();
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156 titleWrapper.setHeight("20px");
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157 titleWrapper.addChild(title);
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158
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159 Canvas gridWrapper = new Canvas();
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160 gridWrapper.setPadding(0);
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161 titleWrapper.setWidth100();
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162 gridWrapper.addChild(grid);
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163
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164 addMember(titleWrapper);
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165 addMember(gridWrapper);
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166 }
97
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167
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168
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169 public void onCollectionChange(CollectionChangeEvent event) {
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170 GWT.log("ProjectList.onCollectionChange");
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171
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172 updateUserCollections();
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173 }
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174
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175
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176 protected void updateUserCollections() {
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177 Config config = Config.getInstance();
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178 String url = config.getServerUrl();
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179
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180 userCollectionsService.getUserCollections(url, user.identifier(),
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181 new AsyncCallback<Collection[]>() {
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182 public void onFailure(Throwable caught) {
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183 GWT.log("Could not recieve a list of user collections.");
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184 GWT.log(caught.getMessage());
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185 }
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186
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187 public void onSuccess(Collection[] collections) {
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188 int num = collections != null ? collections.length : 0;
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189
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190 GWT.log("Received " + num + " user collections.");
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191
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192 if (num == 0) {
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193 return;
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194 }
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195
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196 updateGrid(collections);
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197 }
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198 }
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199 );
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200 }
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201
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202
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203 protected void clearGrid() {
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204 ListGridRecord[] records = grid.getRecords();
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205
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206 for (ListGridRecord record: records) {
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207 grid.removeData(record);
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208 }
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209 }
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210
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211
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212 protected void updateGrid(Collection[] collections) {
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213 clearGrid();
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214
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215 for (Collection c: collections) {
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216 grid.addData(new CollectionRecord(c));
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217 }
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218 }
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219 }
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220 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org