annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/DigitizePanel.java @ 833:dcecdd9693a8

Added a UIProvider that displays a combobox on the left and a map widget in the helper container. flys-client/trunk@2544 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 24 Aug 2011 08:36:51 +0000
parents
children a7179e3a774e
rev   line source
833
dcecdd9693a8 Added a UIProvider that displays a combobox on the left and a map widget in the helper container.
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1 package de.intevation.flys.client.client.ui;
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2
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3 import java.util.List;
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4
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5 import com.google.gwt.core.client.GWT;
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6 import com.google.gwt.user.client.rpc.AsyncCallback;
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7
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8 import com.smartgwt.client.util.SC;
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9 import com.smartgwt.client.widgets.Canvas;
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10 import com.smartgwt.client.widgets.events.ResizedEvent;
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11 import com.smartgwt.client.widgets.events.ResizedHandler;
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12
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13 import org.gwtopenmaps.openlayers.client.Map;
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14 import org.gwtopenmaps.openlayers.client.feature.VectorFeature;
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15 import org.gwtopenmaps.openlayers.client.format.GeoJSON;
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16 import org.gwtopenmaps.openlayers.client.layer.WMS;
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17 import org.gwtopenmaps.openlayers.client.layer.WMSParams;
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18 import org.gwtopenmaps.openlayers.client.layer.WMSOptions;
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19
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20 import de.intevation.flys.client.shared.model.Data;
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21 import de.intevation.flys.client.shared.model.DataItem;
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22 import de.intevation.flys.client.shared.model.DataList;
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23 import de.intevation.flys.client.shared.model.DefaultData;
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24 import de.intevation.flys.client.shared.model.DefaultDataItem;
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25 import de.intevation.flys.client.shared.model.MapInfo;
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26
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27 import de.intevation.flys.client.client.Config;
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28 import de.intevation.flys.client.client.ui.map.FloodMap;
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29 import de.intevation.flys.client.client.ui.map.MapPanel;
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30 import de.intevation.flys.client.client.services.MapInfoService;
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31 import de.intevation.flys.client.client.services.MapInfoServiceAsync;
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32
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33
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34 public class DigitizePanel extends SelectProvider {
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35
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36 protected MapInfoServiceAsync mapInfo = GWT.create(MapInfoService.class);
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37
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38 protected FloodMap floodMap;
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39
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40
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41 public static final String UESK_BARRIERS = "uesk.barriers";
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42
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43
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44 public DigitizePanel() {
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45 }
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46
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47
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48 @Override
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49 public Canvas create(DataList list) {
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50 List<Data> data = list.getAll();
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51
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52 Data barriers = null;
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53 for (int i = data.size()-1; i >= 0; i--) {
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54 Data d = data.get(i);
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55 if (d.getLabel().equals(UESK_BARRIERS)) {
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56 barriers = d;
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57 data.remove(d);
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58 }
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59 }
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60
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61 Canvas selectBox = super.create(list);
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62
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63 final Config cfg = Config.getInstance();
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64 final String url = cfg.getServerUrl();
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65 final String locale = cfg.getLocale();
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66
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67 DataItem[] obj = barriers.getItems();
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68
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69 final String[] geojson = new String[1];
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70 for (DataItem item: obj) {
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71 if (item.getLabel().equals(UESK_BARRIERS)) {
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72 geojson[0] = item.getStringValue();
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73 break;
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74 }
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75 }
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76
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77 // TODO FIND CORRECT RIVER
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78 mapInfo.getMapInfo(url, locale, "Saar", new AsyncCallback<MapInfo>() {
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79 public void onFailure(Throwable caught) {
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80 String msg = caught.getMessage();
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81
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82 GWT.log("Error while fetching MapInfo: " + msg);
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83 SC.warn(MSG.getString(msg));
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84 }
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85
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86 public void onSuccess(MapInfo info) {
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87 createMapWidget(info, geojson[0]);
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88 }
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89 });
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90
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91 return selectBox;
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92 }
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93
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94
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95 @Override
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96 protected Data[] getData() {
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97 Data[] data = super.getData();
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98 Data[] total = new Data[2];
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99
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100 DataItem item = new DefaultDataItem(
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101 UESK_BARRIERS, UESK_BARRIERS, floodMap.getFeaturesAsGeoJSON());
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102
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103 total[0] = data[0];
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104 total[1] = new DefaultData(
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105 UESK_BARRIERS, null, null, new DataItem[] { item });
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106
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107 return total;
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108 }
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109
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110
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111 public void createMapWidget(MapInfo mapInfo, String geojson) {
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112 final MapPanel mapPanel = new MapPanel(mapInfo, true);
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113
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114 floodMap = mapPanel.getFloodMap();
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115 Map map = floodMap.getMap();
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116
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117 helperContainer.addMember(mapPanel);
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118 helperContainer.addResizedHandler(new ResizedHandler() {
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119 public void onResized(ResizedEvent e) {
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120 Integer height = helperContainer.getHeight();
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121 Integer width = helperContainer.getWidth();
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122
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123 height = height * 99 / 100;
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124 width = width * 99 / 100;
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125
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126 String w = String.valueOf(width) + "px";
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127 String h = String.valueOf(height) + "px";
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128
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129 mapPanel.getFloodMap().setSize(w, h);
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130 }
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131 });
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132
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133 WMS axis = getLayer(
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134 mapInfo.getWmsUrl(), "riveraxis",
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135 mapInfo.getProjection(), false);
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136 WMS back = getLayer(
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137 mapInfo.getBackgroundWmsUrl(), mapInfo.getBackgroundWmsLayers(),
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138 mapInfo.getProjection(), false);
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139
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140 map.addLayer(axis);
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141 map.addLayer(back);
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142
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143 if (geojson != null && geojson.length() > 0) {
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144 VectorFeature[] features = new GeoJSON().read(geojson);
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145 floodMap.getBarrierLayer().addFeatures(features);
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146 }
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147
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148 map.zoomToMaxExtent();
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149 }
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150
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151
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152 protected WMS getLayer(String url, String layers, String proj, boolean x) {
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153 WMSParams params = new WMSParams();
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154 params.setLayers(layers);
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155 params.setFormat("image/png");
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156 params.setIsTransparent(!x);
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157
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158 WMSOptions opts = new WMSOptions();
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159 opts.setProjection(proj);
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160 opts.setSingleTile(true);
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161 opts.setRatio(1);
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162
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163 WMS wms = new WMS(layers, url, params, opts);
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164 wms.setIsVisible(true);
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165 wms.setIsBaseLayer(x);
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166
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167 return wms;
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168 }
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169 }
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170 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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