Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/client/ui/LinkSelection.java @ 7764:5d17e0012020

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Use river model_uuid to identify rivers.
author Raimund Renkert <rrenkert@intevation.de>
date Thu, 27 Feb 2014 16:42:35 +0100
parents 626af4af74a5
children 5ec28ef7026b
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.client.client.ui;
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10
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11 import com.google.gwt.core.client.GWT;
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12 import com.smartgwt.client.types.VerticalAlignment;
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13 import com.smartgwt.client.widgets.Canvas;
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14 import com.smartgwt.client.widgets.HTMLPane;
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15 import com.smartgwt.client.widgets.Img;
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16 import com.smartgwt.client.widgets.Label;
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17 import com.smartgwt.client.widgets.events.VisibilityChangedEvent;
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18 import com.smartgwt.client.widgets.events.VisibilityChangedHandler;
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19 import com.smartgwt.client.widgets.form.DynamicForm;
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20 import com.smartgwt.client.widgets.form.fields.LinkItem;
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21 import com.smartgwt.client.widgets.form.fields.events.ClickEvent;
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22 import com.smartgwt.client.widgets.form.fields.events.ClickHandler;
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23 import com.smartgwt.client.widgets.form.fields.events.ItemHoverEvent;
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24 import com.smartgwt.client.widgets.form.fields.events.ItemHoverHandler;
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25 import com.smartgwt.client.widgets.layout.HLayout;
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26 import com.smartgwt.client.widgets.layout.VLayout;
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27
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28 import java.util.HashMap;
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29 import java.util.Map;
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30
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31 import org.dive4elements.river.client.client.FLYSConstants;
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32 import org.dive4elements.river.client.client.event.StepForwardEvent;
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33 import org.dive4elements.river.client.shared.model.Data;
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34 import org.dive4elements.river.client.shared.model.DataItem;
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35 import org.dive4elements.river.client.shared.model.DataList;
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36 import org.dive4elements.river.client.shared.model.DefaultData;
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37 import org.dive4elements.river.client.shared.model.DefaultDataItem;
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38
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39
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40 /**
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41 * This UIProvider displays the DataItems of the Data object in a list of links.
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42 *
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43 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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44 */
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45 public class LinkSelection
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46 extends MapSelection
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47 implements VisibilityChangedHandler
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48 {
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49
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50 private static final long serialVersionUID = -7138270638349711024L;
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51
282
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52 /** The message class that provides i18n strings.*/
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53 protected FLYSConstants messages = GWT.create(FLYSConstants.class);
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54
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55 /** The selected river*/
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56 protected Data river;
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57 private static Map<String, Img> riverHighlight;
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58 private static Map<String, HLayout> riverList;
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59 private static String selected;
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60 private static HLayout columns;
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61
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62 private static Trigger trigger;
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63
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64 private Canvas module;
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65
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66
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67 private class Trigger {
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68
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69 private final LinkSelection ls;
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70
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71 public Trigger(LinkSelection ls) {
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72 this.ls = ls;
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73 }
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74
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75 public void trigger(String name) {
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76 DataItem item = new DefaultDataItem(
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77 name,
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78 null,
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79 name);
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80
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81 river = new DefaultData(
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82 "river",
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83 null,
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84 null,
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85 new DataItem [] {item});
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86 this.ls.fireStepForwardEvent (new StepForwardEvent (getData()));
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87 }
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88 }
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89
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90 /**
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91 * This method currently returns a
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92 * {@link com.smartgwt.client.widgets.form.DynamicForm} that contains all
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93 * data items in a list of links stored in <i>data</i>.
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94 *
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95 * @param data The {@link Data} object.
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96 *
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97 * @return a combobox.
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98 */
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99 @Override
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100 public Canvas create(DataList data) {
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101 trigger = new Trigger(this);
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102 createCallback();
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103 riverHighlight = new HashMap<String, Img>();
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104 riverList = new HashMap<String, HLayout>();
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105
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106 VLayout v = new VLayout();
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107 v.setMembersMargin(10);
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108 v.setAlign(VerticalAlignment.TOP);
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109 if (data.getState() == null) {
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110 module = super.createWidget(data);
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111 v.addMember(module);
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112 }
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113 else {
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114 module = null;
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115 }
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116 Canvas content = createWidget(data);
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117 v.addMember(content);
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118
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119 return v;
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120 }
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121
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122
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123 @Override
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124 public Canvas createOld(DataList dataList) {
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125 HLayout layout = new HLayout();
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126 VLayout vLayout = new VLayout();
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127 layout.setWidth("400px");
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128
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129 Label label = new Label(dataList.getLabel());
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130 label.setWidth("200px");
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131
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132 int size = dataList.size();
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133 for (int i = 0; i < size; i++) {
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134 Data data = dataList.get(i);
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135 DataItem[] items = data.getItems();
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136
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137 for (DataItem item: items) {
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138 HLayout hLayout = new HLayout();
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139
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140 hLayout.addMember(label);
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141 hLayout.addMember(new Label(item.getLabel()));
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142
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143 vLayout.addMember(hLayout);
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144 vLayout.setWidth("130px");
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145 }
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146 }
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147
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148 Canvas back = getBackButton(dataList.getState());
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149
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150 layout.addMember(label);
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151 layout.addMember(vLayout);
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152 layout.addMember(back);
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153
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154 return layout;
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155 }
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156
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157
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158 /**
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159 * This method creates the content of the widget.
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160 *
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161 * @param data The {@link Data} object.
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162 *
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163 * @return a list of links
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164 */
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165 @Override
282
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166 protected Canvas createWidget(DataList data) {
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167 GWT.log("LinkSelection - create()");
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168
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169 VLayout layout = new VLayout();
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170 layout.setAlign(VerticalAlignment.TOP);
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171 // XXX: This an evil hack because of misuse of static vars!
282
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172 layout.setHeight(25);
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173 columns = new HLayout();
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174 VLayout formLayout1 = new VLayout();
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175 VLayout formLayout2 = new VLayout();
282
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176
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177 formLayout1.setLayoutLeftMargin(60);
282
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178
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179 int size = data.size();
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180
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181 for (int i = 0; i < size; i++) {
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182 Data d = data.get(i);
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183
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184 Label label = new Label(d.getDescription());
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185 label.setValign(VerticalAlignment.TOP);
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186 label.setHeight(20);
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187 label.setWidth(400);
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188
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189 int counter = 0;
282
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190 for (DataItem item: d.getItems()) {
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191 HLayout row = new HLayout();
282
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192 LinkItem link = new LinkItem("river");
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193 link.setHoverDelay(0);
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194 link.setLinkTitle(item.getLabel());
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195 link.setValue(item.getStringValue());
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196 link.setShowTitle(false);
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197 Img img = new Img();
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198 img.setShowTitle(false);
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199 img.setSrc("symbol_selected.png");
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200 img.setWidth(18);
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201 img.setHeight(18);
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202 img.setVisible(false);
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203 Canvas container = new Canvas();
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204 container.addChild(img);
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205 container.setHeight(20);
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206 container.setWidth(20);
282
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207 DynamicForm f = new DynamicForm();
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208 riverList.put(item.getStringValue(), row);
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209 riverHighlight.put(item.getStringValue(), img);
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210 f.setItems(link);
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211 row.addMember(container);
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212 row.addMember(f);
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213 row.addVisibilityChangedHandler(this);
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214 link.setColSpan(20);
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215 if (counter < d.getItems().length/2) {
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216 formLayout1.addMember(row);
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217 }
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218 else {
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219 formLayout2.addMember(row);
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220 }
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221 counter++;
282
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222 link.addClickHandler(new ClickHandler() {
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223 @Override
282
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224 public void onClick(ClickEvent event) {
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225 DataItem item = new DefaultDataItem(
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226 ((LinkItem)event.getItem()).getLinkTitle(),
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227 null,
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228 ((LinkItem)event.getItem()).getLinkTitle());
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229
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230 river = new DefaultData(
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231 "river",
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232 null,
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233 null,
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234 new DataItem [] {item});
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235 fireStepForwardEvent (new StepForwardEvent (getData()));
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236 }
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237 });
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238 link.addItemHoverHandler(new ItemHoverHandler() {
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239 @Override
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240 public void onItemHover(ItemHoverEvent event) {
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241 String river =
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242 ((LinkItem)event.getItem()).getValue().toString();
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243 Img item = riverHighlight.get(river);
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244 if (item != null) {
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245 item.setVisible(true);
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246 if (selected != null && !selected.equals(river)) {
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247 riverHighlight.get(selected).setVisible(false);
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248 callUnHighlightRiver(selected);
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249 }
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250 callHighlightRiver(river);
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251 selected = river;
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252 }
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253 }
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254 });
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255 }
282
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256
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257 if (module != null) {
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258 getModuleSelection().setRivers(riverList);
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259 }
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260 label.setWidth(50);
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261
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262 layout.addMember(label);
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263 columns.addMember(formLayout1);
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264 columns.addMember(formLayout2);
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265 layout.addMember(columns);
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266
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267 }
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268 HTMLPane map = new HTMLPane();
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269 map.setContentsURL("images/FLYS_Karte_interactive.html");
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270
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271 helperContainer.addMember(map);
282
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272 return layout;
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273 }
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274
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275
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276 @Override
282
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277 protected Data[] getData() {
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278 Data[] module = super.getData();
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279 if (module != null) {
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280 return new Data[] {module[0], river};
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281 }
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282 else {
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283 return new Data[] {river};
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284 }
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285 }
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286
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287 private native void createCallback() /*-{
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288 $wnd.highlightRiver = @org.dive4elements.river.client.client.ui.LinkSelection::highlightCallback(Ljava/lang/String;);
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289 $wnd.unHighlightRiver = @org.dive4elements.river.client.client.ui.LinkSelection::unHighlightCallback(Ljava/lang/String;);
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290 $wnd.selectRiver = @org.dive4elements.river.client.client.ui.LinkSelection::selectCallback(Ljava/lang/String;);
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291 $wnd.availableRiver = @org.dive4elements.river.client.client.ui.LinkSelection::availableRiver(Ljava/lang/String;);
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292 }-*/;
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293
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294 private static void highlightCallback(String name) {
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295 if (riverHighlight.containsKey(name)) {
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296 riverHighlight.get(name).setVisible(true);
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297 if(selected != null && !selected.equals(name)) {
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298 riverHighlight.get(selected).setVisible(false);
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299 }
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300 selected = name;
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301 }
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302 }
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303
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304 private static void unHighlightCallback(String name) {
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305 if (riverHighlight.containsKey(name)) {
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306 riverHighlight.get(name).setVisible(false);
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307 selected = null;
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308 }
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309 }
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310
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311 private static boolean availableRiver(String river) {
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312 HLayout row = riverList.get(river);
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313 return row != null && row.isVisible();
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314 }
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315
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316 private static void selectCallback(String name) {
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317 if (availableRiver(name)) {
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318 trigger.trigger(name);
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319 }
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320 }
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321
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322 private native void callHighlightRiver(String name) /*-{
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323 $wnd.highlight(name);
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324 }-*/;
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325
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326 private native void callUnHighlightRiver(String name) /*-{
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327 $wnd.unHighlight(name);
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328 }-*/;
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329
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330
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331 @Override
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332 public void onVisibilityChanged(VisibilityChangedEvent event) {
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333 for (Map.Entry<String, Img> entry: riverHighlight.entrySet()) {
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334 entry.getValue().setVisible(false);
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335 callUnHighlightRiver(entry.getKey());
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336 }
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337 selected = null;
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338 }
282
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339 }
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340 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org