Mercurial > dive4elements > river

comparison flys-client/src/main/java/de/intevation/flys/client/client/ui/SingleLocationPanel.java @ 238:234c78a91c15

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Added new UI provider for single location selection. flys-client/trunk@1806 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Tue, 03 May 2011 13:52:14 +0000
parents
children f9ca49e59fb6
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equal deleted inserted replaced
237:cf25f235b7b6 238:234c78a91c15
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.widgets.Canvas;
9 import com.smartgwt.client.widgets.Label;
10 import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
11 import com.smartgwt.client.widgets.form.fields.events.BlurEvent;
12 import com.smartgwt.client.widgets.form.fields.FormItem;
13 import com.smartgwt.client.widgets.layout.HLayout;
14 import com.smartgwt.client.widgets.layout.VLayout;
15 import com.smartgwt.client.widgets.grid.ListGrid;
16 import com.smartgwt.client.widgets.grid.ListGridField;
17 import com.smartgwt.client.widgets.grid.ListGridRecord;
18 import com.smartgwt.client.widgets.grid.events.RecordClickHandler;
19 import com.smartgwt.client.widgets.grid.events.RecordClickEvent;
20
21 import com.smartgwt.client.types.ListGridFieldType;
22
23 import de.intevation.flys.client.shared.model.Data;
24 import de.intevation.flys.client.shared.model.DataItem;
25 import de.intevation.flys.client.shared.model.DataList;
26 import de.intevation.flys.client.shared.model.DefaultData;
27 import de.intevation.flys.client.shared.model.DefaultDataItem;
28 import de.intevation.flys.client.shared.model.DistanceInfoObject;
29 import de.intevation.flys.client.shared.model.DistanceInfoRecord;
30 import de.intevation.flys.client.shared.model.ArtifactDescription;
31
32 import de.intevation.flys.client.client.services.DistanceInfoService;
33 import de.intevation.flys.client.client.services.DistanceInfoServiceAsync;
34 import de.intevation.flys.client.client.FLYSConstants;
35 import de.intevation.flys.client.client.FLYSImages;
36 import de.intevation.flys.client.client.Config;
37
38
39 /**
40 * This UIProvider creates a widget to enter locations.
41 *
42 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
43 */
44 public class SingleLocationPanel
45 extends AbstractUIProvider
46 {
47 /** The message class that provides i18n strings.*/
48 protected FLYSConstants MESSAGES = GWT.create(FLYSConstants.class);
49
50 /** The interface that provides the image resources. */
51 private FLYSImages IMAGES = GWT.create(FLYSImages.class);
52
53 /** The DistanceInfoService used to retrieve locations about rivers.*/
54 protected DistanceInfoServiceAsync distanceInfoService =
55 GWT.create(DistanceInfoService.class);
56
57 /** A container that will contain the location or the distance panel.*/
58 protected HLayout container;
59
60 /** The values entered in the location mode.*/
61 protected double[] values;
62
63 /** The input panel for locations */
64 protected DoubleArrayPanel locationPanel;
65
66 /** The locations table */
67 protected ListGrid locationTable;
68
69 /** The table data. */
70 protected DistanceInfoObject[] tableData;
71
72 /**
73 * Creates a new LocationDistancePanel instance.
74 */
75 public SingleLocationPanel() {
76 locationTable = new ListGrid();
77 }
78
79
80 /**
81 * This method creates a widget that contains a label, a panel with
82 * checkboxes to switch the input mode between location and distance input,
83 * and a the mode specific panel.
84 *
85 * @param data The data that might be inserted.
86 *
87 * @return a panel.
88 */
89 public Canvas create(DataList data) {
90 VLayout layout = new VLayout();
91 layout.setMembersMargin(10);
92
93 initDefaults(data);
94
95 Label label = new Label(MESSAGES.location ());
96 Canvas widget = createWidget(data);
97 Canvas submit = getNextButton();
98
99 createLocationTable();
100
101 widget.setHeight(50);
102 label.setHeight(25);
103
104 layout.addMember(label);
105 layout.addMember(widget);
106 layout.addMember(submit);
107
108 return layout;
109 }
110
111
112 /**
113 * This method creates a table that contains the location values.
114 */
115 protected void createLocationTable() {
116 locationTable.setWidth(450);
117 locationTable.setShowRecordComponents(true);
118 locationTable.setShowRecordComponentsByCell(true);
119 locationTable.setHeight(300);
120
121 ListGridField addLocation = new ListGridField ("", "");
122 addLocation.setType (ListGridFieldType.ICON);
123 addLocation.setWidth ("30");
124 addLocation.addRecordClickHandler (new RecordClickHandler () {
125 public void onRecordClick (RecordClickEvent e) {
126 ListGridRecord[] records = locationTable.getSelection();
127 double[] selected = new double[1];
128 selected[0] = records[0].getAttributeAsDouble("from");
129 setLocationValues(selected);
130 }
131 });
132 addLocation.setCellIcon (IMAGES.markerGreen ().getURL ());
133
134 ListGridField ldescr = new ListGridField("description",
135 MESSAGES.description());
136 ldescr.setType(ListGridFieldType.TEXT);
137 ldescr.setWidth("*");
138 ListGridField lside = new ListGridField("riverside",
139 MESSAGES.riverside());
140 lside.setType(ListGridFieldType.TEXT);
141 lside.setWidth(60);
142 ListGridField loc = new ListGridField("from", MESSAGES.location());
143 loc.setType(ListGridFieldType.TEXT);
144 loc.setWidth(80);
145 locationTable.setFields(addLocation, ldescr, loc, lside);
146 }
147
148
149 public Canvas createOld(DataList dataList) {
150 List<Data> items = dataList.getAll();
151
152 HLayout layout = new HLayout();
153 layout.setWidth("400px");
154
155 Label label = new Label(dataList.getLabel());
156 label.setWidth("200px");
157
158 Canvas back = getBackButton(dataList.getState());
159
160 Label selected = new Label("testtext");
161 selected.setWidth("130px");
162
163 layout.addMember(label);
164 layout.addMember(selected);
165 layout.addMember(back);
166
167 return layout;
168 }
169
170
171 /**
172 * This method reads the default values defined in the DataItems of the Data
173 * objects in <i>list</i>.
174 *
175 * @param list The DataList container that stores the Data objects.
176 */
177 protected void initDefaults(DataList list) {
178 }
179
180
181 /**
182 * This method greps the Data with name <i>name</i> from the list and
183 * returns it.
184 *
185 * @param items A list of Data.
186 * @param name The name of the Data that we are searching for.
187 *
188 * @return the Data with the name <i>name</i>.
189 */
190 protected Data getData(List<Data> data, String name) {
191 for (Data d: data) {
192 if (name.equals(d.getLabel())) {
193 return d;
194 }
195 }
196
197 return null;
198 }
199
200
201 protected Canvas createWidget(DataList data) {
202 VLayout layout = new VLayout();
203 container = new HLayout();
204
205 // the initial view will display the location input mode
206 locationPanel = new DoubleArrayPanel(
207 MESSAGES.unitLocation(),
208 getLocationValues(),
209 new BlurHandler(){public void onBlur(BlurEvent be) {}});
210 container.addMember(locationPanel);
211
212 layout.addMember(container);
213
214 container.setMembersMargin(30);
215
216 container.addMember(locationTable);
217 createInputPanel();
218 return layout;
219 }
220
221
222 /**
223 * This method returns the selected data.
224 *
225 * @return the selected/inserted data.
226 */
227 public Data[] getData() {
228 double[] values = getLocationValues();
229 Data[] data = new Data[values.length];
230 DataItem item = new DefaultDataItem();
231 for (int i = 0; i < values.length; i++) {
232 item = new DefaultDataItem(
233 "ld_locations",
234 "ld_locations",
235 Double.valueOf(values[i]).toString());
236 data[i] = new DefaultData(
237 "ld_locations",
238 null,
239 null,
240 new DataItem[] {item});
241 }
242 return data;
243 }
244
245
246
247
248 /**
249 * Validates and stores all values entered in the location mode.
250 *
251 * @param p The DoubleArrayPanel.
252 */
253 protected void saveLocationValues(DoubleArrayPanel p) {
254 FormItem[] formItems = p.getFields();
255
256 for (FormItem item: formItems) {
257 if (item.getFieldName().equals(DoubleArrayPanel.FIELD_NAME)) {
258 saveLocationValue(p, item);
259 }
260 }
261 }
262
263
264 /**
265 * Validates and stores a value entered in the location mode.
266 *
267 * @param p The DoubleArrayPanel.
268 * @param item The item that needs to be validated.
269 */
270 protected void saveLocationValue(DoubleArrayPanel p, FormItem item) {
271 if (p.validateForm(item)) {
272 setLocationValues(p.getInputValues(item));
273 }
274 }
275
276
277 protected void createInputPanel() {
278 Config config = Config.getInstance();
279 String url = config.getServerUrl();
280 String locale = config.getLocale ();
281 String river = "";
282
283 ArtifactDescription adescr = artifact.getArtifactDescription();
284 DataList[] data = adescr.getOldData();
285
286 if (data != null && data.length > 0) {
287 for (int i = 0; i < data.length; i++) {
288 DataList dl = data[i];
289 if (dl.getState().equals("state.winfo.river")) {
290 for (int j = 0; j < dl.size(); j++) {
291 Data d = dl.get(j);
292 DataItem[] di = d.getItems();
293 if (di != null && di.length == 1) {
294 river = d.getItems()[0].getStringValue();
295 }
296 }
297 }
298 }
299 }
300
301 distanceInfoService.getDistanceInfo(url, locale, river,
302 new AsyncCallback<DistanceInfoObject[]>() {
303 public void onFailure(Throwable caught) {
304 GWT.log("Could not recieve location informations.");
305 GWT.log(caught.getMessage());
306 }
307
308 public void onSuccess(DistanceInfoObject[] di) {
309 int num = di != null ? di.length :0;
310 GWT.log("Recieved " + num + " location informations.");
311
312 if (num == 0) {
313 return;
314 }
315 tableData = di;
316 updateLocationInfo(di);
317 }
318 }
319 );
320 }
321
322
323 protected void updateLocationInfo(DistanceInfoObject[] di) {
324 int i = 0;
325 for (DistanceInfoObject dio: di) {
326 if (dio.getTo() != null) {
327 locationTable.addData(new DistanceInfoRecord(dio));
328 }
329 }
330 return;
331 }
332
333
334 protected double[] getLocationValues() {
335 return values;
336 }
337
338
339 protected void setLocationValues(double[] values) {
340 this.values = values;
341 locationPanel.setValues(values);
342 }
343 }
344 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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