source: osm/utils/josm/plugins/wmsplugin/src/wmsplugin/DownloadWMSTask.java@ 2121

package wmsplugin;

import static org.openstreetmap.josm.tools.I18n.tr;

import java.io.IOException;
import java.util.*;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.actions.DownloadAction;
import org.openstreetmap.josm.gui.PleaseWaitRunnable;

 

public class DownloadWMSTask extends PleaseWaitRunnable {

        private WMSLayer wmsLayer;
        private double minlat, minlon, maxlat, maxlon;
        
        /* whether our layer was already added. */
        private boolean layerAdded = false;
        
        
        public DownloadWMSTask(String name, String wmsurl) {
                
                super(tr("Downloading " + name));
                
                // simply check if we already have a layer created. if not, create; if yes, reuse.
                
                if (wmsLayer == null) {
                        
                        if (wmsurl.matches("(?i).*layers=npeoocmap.*") || wmsurl.matches("(?i).*layers=npe.*") ){
                                //then we use the OSGBLayer
                                this.wmsLayer= new OSGBLayer(name, wmsurl);
                        } else {                        
                                this.wmsLayer = new WMSLayer(name, wmsurl); 
                                
                        } 
                } 
        }
        
        @Override public void realRun() throws IOException {
                wmsLayer.grab(minlat,minlon,maxlat,maxlon);
        }

        @Override protected void finish() {

                // BUG if layer is deleted, wmsLayer is not null and layerAdded remains true!
                // FIXED, see below
                
                layerAdded = false;
                for (Iterator it = Main.map.mapView.getAllLayers().iterator(); it.hasNext(); ) {
        Object  element = it.next();
       
        if (element.equals(wmsLayer)) layerAdded = true;
        
                }
                 
                                
                if ((wmsLayer != null) && (!layerAdded))
                {
                        Main.main.addLayer(wmsLayer);
                        layerAdded = true;
                }
        }

        @Override protected void cancel() {
        }

        public void download(DownloadAction action, double minlat, double minlon, double maxlat, double maxlon) {
                this.minlat=minlat;
                this.minlon=minlon;
                this.maxlat=maxlat;
                this.maxlon=maxlon;
                Main.worker.execute(this);
        }
}