Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/map/GetFeatureInfo.java @ 5818:a4ff4167be1e

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Request feature info on all layers and show it as html if the server does not return valid gml. Non queryable layers produce an error message when the request fails. This is good enough
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 24 Apr 2013 17:33:27 +0200
parents e0ab5a566688
children
rev   line source
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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.shared.model.AttributedTheme;
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24 import de.intevation.flys.client.shared.model.FeatureInfoResponse;
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25 import de.intevation.flys.client.client.ui.ThemePanel;
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26
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27
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28 public class GetFeatureInfo implements MapClickListener {
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29
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30 protected GFIServiceAsync gfiService = GWT.create(GFIService.class);
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31
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32 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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33
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34 protected GetFeatureInfoWindow gfiWindow;
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35
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36 protected Map map;
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37 protected ThemePanel themePanel;
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38 protected String infoFormat;
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39
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40
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41 /**
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42 * @param map
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43 * @param themes
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44 * @param url
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45 * @param infoFormat
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46 */
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47 public GetFeatureInfo(Map map, ThemePanel themePanel, String infoFormat) {
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48 this.map = map;
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49 this.themePanel = themePanel;
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50 this.infoFormat = infoFormat;
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51 }
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52
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53
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54 public void activate(boolean activate) {
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55 if (activate) {
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56 map.addMapClickListener(this);
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57 }
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58 else {
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59 map.removeListener(this);
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60 }
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61 }
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62
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63
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64 protected void newGetFeatureInfoWindow(List<FeatureInfo> features, String title) {
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65 if (gfiWindow != null) {
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66 gfiWindow.destroy();
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67 }
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68
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69 gfiWindow = new GetFeatureInfoWindow(features, title);
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70 gfiWindow.show();
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71 }
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72
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73 protected void newGetFeatureInfoWindow(String response, String title) {
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74 if (gfiWindow != null) {
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75 gfiWindow.destroy();
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76 }
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77
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78 gfiWindow = new GetFeatureInfoWindow(response, title);
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79 gfiWindow.show();
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80 }
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81
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82 @Override
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83 public void onClick(MapClickListener.MapClickEvent e) {
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84 LonLat lonlat = e.getLonLat();
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85 Pixel pixel = map.getPixelFromLonLat(lonlat);
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86
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87 if (themePanel.getSelectedRecords().length == 0) {
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88 SC.say(MSG.requireTheme());
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89 }
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90
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91 for (ListGridRecord rec : themePanel.getSelectedRecords()) {
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92 Theme act_theme = ((FacetRecord)rec).getTheme();
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93 final AttributedTheme at = (AttributedTheme)act_theme;
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94 gfiService.query(
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95 act_theme,
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96 infoFormat,
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97 map.getExtent().toString(),
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98 map.getProjection(),
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99 (int) map.getSize().getHeight(),
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100 (int) map.getSize().getWidth(),
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101 pixel.x(), pixel.y(),
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102 new AsyncCallback<FeatureInfoResponse>() {
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103 @Override
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104 public void onFailure(Throwable e) {
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105 SC.warn(MSG.getString(e.getMessage()));
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106 }
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107
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108 @Override
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109 public void onSuccess(FeatureInfoResponse response) {
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110 List<FeatureInfo> features = response.getFeatures();
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111 if (features != null && !features.isEmpty()) {
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112 newGetFeatureInfoWindow(features, at.getAttr("description"));
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113 } else if (response.getFeatureInfoHTML() != null) {
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114 newGetFeatureInfoWindow(response.getFeatureInfoHTML(),
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115 at.getAttr("description"));
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116 } else {
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117 GWT.log("GetFeatureInfo returned neither a list of features nor a string");
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118 }
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119 }
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120 }
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121 );
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122 break; // More intelligent handling when more then one is selected
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123 }
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124 }
96708d81eaf6 Added an initial GetFeatureInfo tool to get information about points in the map.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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http://dive4elements.wald.intevation.org