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annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/map/GetFeatureInfo.java @ 5794:af2aa716152f

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Fix issue1254, make GetFeatureInfo work reliably This reduced GetFeatureInfo to one request per layer and chooses the layer based on the selected theme
author Andre Heinecke <aheinecke@intevation.de>
date Tue, 23 Apr 2013 17:14:07 +0200
parents 46fc11ad697f
children e0ab5a566688
rev   line source
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96708d81eaf6 Added an initial GetFeatureInfo tool to get information about points in the map.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.flys.client.client.ui.map;
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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.grid.ListGridRecord;
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10
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11 import org.gwtopenmaps.openlayers.client.Map;
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12 import org.gwtopenmaps.openlayers.client.LonLat;
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13 import org.gwtopenmaps.openlayers.client.Pixel;
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14 import org.gwtopenmaps.openlayers.client.event.MapClickListener;
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15
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16 import de.intevation.flys.client.shared.model.FeatureInfo;
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17
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18 import de.intevation.flys.client.client.FLYSConstants;
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19 import de.intevation.flys.client.client.services.GFIService;
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20 import de.intevation.flys.client.client.services.GFIServiceAsync;
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21 import de.intevation.flys.client.shared.model.FacetRecord;
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22 import de.intevation.flys.client.shared.model.Theme;
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23 import de.intevation.flys.client.client.ui.ThemePanel;
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24
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25
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26 public class GetFeatureInfo implements MapClickListener {
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27
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28 protected GFIServiceAsync gfiService = GWT.create(GFIService.class);
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29
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30 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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31
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32 protected GetFeatureInfoWindow gfiWindow;
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33
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34 protected Map map;
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35 protected ThemePanel themePanel;
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36 protected String infoFormat;
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37
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38
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39 /**
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40 * @param map
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41 * @param themes
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42 * @param url
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43 * @param infoFormat
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44 */
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45 public GetFeatureInfo(Map map, ThemePanel themePanel, String infoFormat) {
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46 this.map = map;
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47 this.themePanel = themePanel;
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48 this.infoFormat = infoFormat;
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49 }
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50
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51
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52 public void activate(boolean activate) {
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53 if (activate) {
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54 map.addMapClickListener(this);
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55 }
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56 else {
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57 map.removeListener(this);
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58 }
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59 }
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60
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61
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62 protected void newGetFeatureInfoWindow(List<FeatureInfo> features) {
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63 if (gfiWindow != null) {
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64 gfiWindow.destroy();
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65 }
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66
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67 gfiWindow = new GetFeatureInfoWindow(features);
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68 gfiWindow.show();
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69 }
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71
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72 @Override
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73 public void onClick(MapClickListener.MapClickEvent e) {
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74 LonLat lonlat = e.getLonLat();
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75 Pixel pixel = map.getPixelFromLonLat(lonlat);
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76
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77 if (themePanel.getSelectedRecords().length == 0) {
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78 SC.say(MSG.requireTheme());
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79 }
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80
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81 for (ListGridRecord rec : themePanel.getSelectedRecords()) {
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82 Theme act_theme = ((FacetRecord)rec).getTheme();
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83 gfiService.query(
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84 act_theme,
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85 infoFormat,
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86 map.getExtent().toString(),
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87 map.getProjection(),
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88 (int) map.getSize().getHeight(),
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89 (int) map.getSize().getWidth(),
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90 pixel.x(), pixel.y(),
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91 new AsyncCallback<List<FeatureInfo>>() {
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92 @Override
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93 public void onFailure(Throwable e) {
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94 SC.warn(MSG.getString(e.getMessage()));
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95 }
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96
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97 @Override
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98 public void onSuccess(List<FeatureInfo> features) {
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99 if (features != null && !features.isEmpty())
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100 newGetFeatureInfoWindow(features);
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101 }
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102 }
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103 );
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104 break; // More intelligent handling when more then one is selected
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105 }
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106 }
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107 }
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