Mercurial > dive4elements > river
comparison flys-client/src/main/java/de/intevation/flys/client/client/widgets/DischargeTablesChart.java @ 4218:6ae99d996f79
flys/issue903: Display the discharge tables of the selected gauge as chart in historical discharge calculation.
There is a new class 'DischargeTablesChart' which is a Canvas and displays the chart using the new service
'DischargeTablesServiceImpl'.
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Tue, 23 Oct 2012 12:01:19 +0200 |
| parents | |
| children |
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| 4217:08b6458909a9 | 4218:6ae99d996f79 |
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| 1 package de.intevation.flys.client.client.widgets; | |
| 2 | |
| 3 import com.google.gwt.core.client.GWT; | |
| 4 import com.smartgwt.client.widgets.Canvas; | |
| 5 import com.smartgwt.client.widgets.Img; | |
| 6 import com.smartgwt.client.widgets.events.ResizedEvent; | |
| 7 import com.smartgwt.client.widgets.events.ResizedHandler; | |
| 8 | |
| 9 import de.intevation.flys.client.shared.model.Artifact; | |
| 10 import de.intevation.flys.client.shared.model.ArtifactDescription; | |
| 11 | |
| 12 | |
| 13 public class DischargeTablesChart extends Canvas implements ResizedHandler { | |
| 14 | |
| 15 protected Artifact artifact; | |
| 16 | |
| 17 protected Img img; | |
| 18 | |
| 19 public DischargeTablesChart() { | |
| 20 super(); | |
| 21 } | |
| 22 | |
| 23 public DischargeTablesChart(Artifact artifact) { | |
| 24 super(); | |
| 25 this.artifact = artifact; | |
| 26 init(); | |
| 27 } | |
| 28 | |
| 29 private void init() { | |
| 30 addChild(createImage()); | |
| 31 addResizedHandler(this); | |
| 32 setSize("100%", "100%"); | |
| 33 } | |
| 34 | |
| 35 protected Img createImage() { | |
| 36 img = new Img(getUrl()); | |
| 37 img.setSize("100%", "100%"); | |
| 38 | |
| 39 return img; | |
| 40 } | |
| 41 | |
| 42 protected String getUrl() { | |
| 43 String url = GWT.getModuleBaseURL(); | |
| 44 url += "dischargetablesoverview"; | |
| 45 url += "?gauge=" + getGauge(); | |
| 46 url += "&format=png"; | |
| 47 | |
| 48 String[] timerange = getTimerange(); | |
| 49 url += "&lower=" + timerange[0]; | |
| 50 url += "&upper=" + timerange[1]; | |
| 51 | |
| 52 int width = 600; | |
| 53 int height = 400; | |
| 54 if (img != null) { | |
| 55 width = img.getWidth(); | |
| 56 height = img.getHeight(); | |
| 57 } | |
| 58 | |
| 59 url += "&width=" + String.valueOf(width); | |
| 60 url += "&height=" + String.valueOf(height); | |
| 61 | |
| 62 // add time millis to 'deactivate' caching | |
| 63 url += "&timemillis" + System.currentTimeMillis(); | |
| 64 | |
| 65 GWT.log("DischargeTablesService URL = '" + url + "'"); | |
| 66 return url; | |
| 67 } | |
| 68 | |
| 69 protected String getGauge() { | |
| 70 ArtifactDescription desc = artifact.getArtifactDescription(); | |
| 71 return desc.getReferenceGauge(); | |
| 72 } | |
| 73 | |
| 74 protected String[] getTimerange() { | |
| 75 ArtifactDescription desc = artifact.getArtifactDescription(); | |
| 76 String yearStr = desc.getDataValueAsString("year_range"); | |
| 77 | |
| 78 if (yearStr != null && yearStr.length() > 0) { | |
| 79 return yearStr.split(";"); | |
| 80 } | |
| 81 | |
| 82 return new String[2]; | |
| 83 } | |
| 84 | |
| 85 @Override | |
| 86 public void onResized(ResizedEvent event) { | |
| 87 GWT.log("resized discharge tables overview chart"); | |
| 88 img.setSrc(getUrl()); | |
| 89 } | |
| 90 } |