Mercurial > dive4elements > river

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

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
comparison
equal deleted inserted replaced
832:303a923d232b 833:dcecdd9693a8
1 package de.intevation.flys.client.client.ui;
2
3 import java.util.List;
4
5 import com.google.gwt.core.client.GWT;
6 import com.google.gwt.user.client.rpc.AsyncCallback;
7
8 import com.smartgwt.client.util.SC;
9 import com.smartgwt.client.widgets.Canvas;
10 import com.smartgwt.client.widgets.events.ResizedEvent;
11 import com.smartgwt.client.widgets.events.ResizedHandler;
12
13 import org.gwtopenmaps.openlayers.client.Map;
14 import org.gwtopenmaps.openlayers.client.feature.VectorFeature;
15 import org.gwtopenmaps.openlayers.client.format.GeoJSON;
16 import org.gwtopenmaps.openlayers.client.layer.WMS;
17 import org.gwtopenmaps.openlayers.client.layer.WMSParams;
18 import org.gwtopenmaps.openlayers.client.layer.WMSOptions;
19
20 import de.intevation.flys.client.shared.model.Data;
21 import de.intevation.flys.client.shared.model.DataItem;
22 import de.intevation.flys.client.shared.model.DataList;
23 import de.intevation.flys.client.shared.model.DefaultData;
24 import de.intevation.flys.client.shared.model.DefaultDataItem;
25 import de.intevation.flys.client.shared.model.MapInfo;
26
27 import de.intevation.flys.client.client.Config;
28 import de.intevation.flys.client.client.ui.map.FloodMap;
29 import de.intevation.flys.client.client.ui.map.MapPanel;
30 import de.intevation.flys.client.client.services.MapInfoService;
31 import de.intevation.flys.client.client.services.MapInfoServiceAsync;
32
33
34 public class DigitizePanel extends SelectProvider {
35
36 protected MapInfoServiceAsync mapInfo = GWT.create(MapInfoService.class);
37
38 protected FloodMap floodMap;
39
40
41 public static final String UESK_BARRIERS = "uesk.barriers";
42
43
44 public DigitizePanel() {
45 }
46
47
48 @Override
49 public Canvas create(DataList list) {
50 List<Data> data = list.getAll();
51
52 Data barriers = null;
53 for (int i = data.size()-1; i >= 0; i--) {
54 Data d = data.get(i);
55 if (d.getLabel().equals(UESK_BARRIERS)) {
56 barriers = d;
57 data.remove(d);
58 }
59 }
60
61 Canvas selectBox = super.create(list);
62
63 final Config cfg = Config.getInstance();
64 final String url = cfg.getServerUrl();
65 final String locale = cfg.getLocale();
66
67 DataItem[] obj = barriers.getItems();
68
69 final String[] geojson = new String[1];
70 for (DataItem item: obj) {
71 if (item.getLabel().equals(UESK_BARRIERS)) {
72 geojson[0] = item.getStringValue();
73 break;
74 }
75 }
76
77 // TODO FIND CORRECT RIVER
78 mapInfo.getMapInfo(url, locale, "Saar", new AsyncCallback<MapInfo>() {
79 public void onFailure(Throwable caught) {
80 String msg = caught.getMessage();
81
82 GWT.log("Error while fetching MapInfo: " + msg);
83 SC.warn(MSG.getString(msg));
84 }
85
86 public void onSuccess(MapInfo info) {
87 createMapWidget(info, geojson[0]);
88 }
89 });
90
91 return selectBox;
92 }
93
94
95 @Override
96 protected Data[] getData() {
97 Data[] data = super.getData();
98 Data[] total = new Data[2];
99
100 DataItem item = new DefaultDataItem(
101 UESK_BARRIERS, UESK_BARRIERS, floodMap.getFeaturesAsGeoJSON());
102
103 total[0] = data[0];
104 total[1] = new DefaultData(
105 UESK_BARRIERS, null, null, new DataItem[] { item });
106
107 return total;
108 }
109
110
111 public void createMapWidget(MapInfo mapInfo, String geojson) {
112 final MapPanel mapPanel = new MapPanel(mapInfo, true);
113
114 floodMap = mapPanel.getFloodMap();
115 Map map = floodMap.getMap();
116
117 helperContainer.addMember(mapPanel);
118 helperContainer.addResizedHandler(new ResizedHandler() {
119 public void onResized(ResizedEvent e) {
120 Integer height = helperContainer.getHeight();
121 Integer width = helperContainer.getWidth();
122
123 height = height * 99 / 100;
124 width = width * 99 / 100;
125
126 String w = String.valueOf(width) + "px";
127 String h = String.valueOf(height) + "px";
128
129 mapPanel.getFloodMap().setSize(w, h);
130 }
131 });
132
133 WMS axis = getLayer(
134 mapInfo.getWmsUrl(), "riveraxis",
135 mapInfo.getProjection(), false);
136 WMS back = getLayer(
137 mapInfo.getBackgroundWmsUrl(), mapInfo.getBackgroundWmsLayers(),
138 mapInfo.getProjection(), false);
139
140 map.addLayer(axis);
141 map.addLayer(back);
142
143 if (geojson != null && geojson.length() > 0) {
144 VectorFeature[] features = new GeoJSON().read(geojson);
145 floodMap.getBarrierLayer().addFeatures(features);
146 }
147
148 map.zoomToMaxExtent();
149 }
150
151
152 protected WMS getLayer(String url, String layers, String proj, boolean x) {
153 WMSParams params = new WMSParams();
154 params.setLayers(layers);
155 params.setFormat("image/png");
156 params.setIsTransparent(!x);
157
158 WMSOptions opts = new WMSOptions();
159 opts.setProjection(proj);
160 opts.setSingleTile(true);
161 opts.setRatio(1);
162
163 WMS wms = new WMS(layers, url, params, opts);
164 wms.setIsVisible(true);
165 wms.setIsBaseLayer(x);
166
167 return wms;
168 }
169 }
170 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org