ingo@4218: package de.intevation.flys.client.client.widgets;
ingo@4218: 
ingo@4218: import com.google.gwt.core.client.GWT;
ingo@4218: import com.smartgwt.client.widgets.Canvas;
ingo@4218: import com.smartgwt.client.widgets.Img;
ingo@4218: import com.smartgwt.client.widgets.events.ResizedEvent;
ingo@4218: import com.smartgwt.client.widgets.events.ResizedHandler;
ingo@4218: 
ingo@4218: import de.intevation.flys.client.shared.model.Artifact;
ingo@4218: import de.intevation.flys.client.shared.model.ArtifactDescription;
ingo@4218: 
ingo@4218: 
ingo@4218: public class DischargeTablesChart extends Canvas implements ResizedHandler {
ingo@4218: 
ingo@4218:     protected Artifact artifact;
ingo@4218: 
ingo@4218:     protected Img img;
ingo@4218: 
ingo@4218:     public DischargeTablesChart() {
ingo@4218:         super();
ingo@4218:     }
ingo@4218: 
ingo@4218:     public DischargeTablesChart(Artifact artifact) {
ingo@4218:         super();
ingo@4218:         this.artifact = artifact;
ingo@4218:         init();
ingo@4218:     }
ingo@4218: 
ingo@4218:     private void init() {
ingo@4218:         addChild(createImage());
ingo@4218:         addResizedHandler(this);
ingo@4218:         setSize("100%", "100%");
ingo@4218:     }
ingo@4218: 
ingo@4218:     protected Img createImage() {
ingo@4218:         img = new Img(getUrl());
ingo@4218:         img.setSize("100%", "100%");
ingo@4218: 
ingo@4218:         return img;
ingo@4218:     }
ingo@4218: 
ingo@4218:     protected String getUrl() {
ingo@4218:         String url = GWT.getModuleBaseURL();
ingo@4218:         url += "dischargetablesoverview";
ingo@4218:         url += "?gauge=" + getGauge();
ingo@4218:         url += "&format=png";
ingo@4218: 
ingo@4218:         String[] timerange = getTimerange();
ingo@4218:         url += "&lower=" + timerange[0];
ingo@4218:         url += "&upper=" + timerange[1];
ingo@4218: 
ingo@4218:         int width = 600;
ingo@4218:         int height = 400;
ingo@4218:         if (img != null) {
ingo@4218:             width = img.getWidth();
ingo@4218:             height = img.getHeight();
ingo@4218:         }
ingo@4218: 
ingo@4218:         url += "&width=" + String.valueOf(width);
ingo@4218:         url += "&height=" + String.valueOf(height);
ingo@4218: 
ingo@4218:         // add time millis to 'deactivate' caching
ingo@4218:         url += "&timemillis" + System.currentTimeMillis();
ingo@4218: 
ingo@4218:         GWT.log("DischargeTablesService URL = '" + url + "'");
ingo@4218:         return url;
ingo@4218:     }
ingo@4218: 
ingo@4218:     protected String getGauge() {
ingo@4218:         ArtifactDescription desc = artifact.getArtifactDescription();
ingo@4218:         return desc.getReferenceGauge();
ingo@4218:     }
ingo@4218: 
ingo@4218:     protected String[] getTimerange() {
ingo@4218:         ArtifactDescription desc = artifact.getArtifactDescription();
ingo@4218:         String yearStr = desc.getDataValueAsString("year_range");
ingo@4218: 
ingo@4218:         if (yearStr != null && yearStr.length() > 0) {
ingo@4218:             return yearStr.split(";");
ingo@4218:         }
ingo@4218: 
ingo@4218:         return new String[2];
ingo@4218:     }
ingo@4218: 
ingo@4218:     @Override
ingo@4218:     public void onResized(ResizedEvent event) {
ingo@4218:         GWT.log("resized discharge tables overview chart");
ingo@4218:         img.setSrc(getUrl());
ingo@4218:     }
ingo@4218: }