Changeset 10382 in osm for applications/editors/josm/plugins/wmsplugin/src/wmsplugin/WMSLayer.java

Timestamp:

2008-09-02T11:23:39+02:00 (16 years ago)

Author:

petrdlouhy

Message:

Added automatic tiles downloading and Yahoo support.

File:

• applications/editors/josm/plugins/wmsplugin/src/wmsplugin/WMSLayer.java (modified) (10 diffs)

applications/editors/josm/plugins/wmsplugin/src/wmsplugin/WMSLayer.java

@@ -3 +3 @@
 import static org.openstreetmap.josm.tools.I18n.tr;
 
+import java.lang.Math;
 import java.awt.Component;
 import java.awt.Graphics;
+import java.awt.Point;
 import java.awt.Toolkit;
 import java.awt.event.ActionEvent;
@@ -30 +32 @@
 import org.openstreetmap.josm.data.projection.Projection;
 import org.openstreetmap.josm.data.Bounds;
+import org.openstreetmap.josm.data.coor.LatLon;
 import org.openstreetmap.josm.gui.MapView;
+import java.util.ArrayList;
 import org.openstreetmap.josm.gui.dialogs.LayerListDialog;
 import org.openstreetmap.josm.gui.dialogs.LayerListPopup;
@@ -46 +50 @@
                 new ImageIcon(Toolkit.getDefaultToolkit().createImage(WMSPlugin.class.getResource("/images/wms_small.png")));
 
-        protected ArrayList<GeorefImage> images = new ArrayList<GeorefImage>();
-        protected Grabber grabber;
-        protected final int serializeFormatVersion = 2;
+        public int messageNum = 5; //limit for messages per layer
+        protected boolean started = true;
+        protected boolean stopAfterPaint = false;
+        protected int ImageSize = 500;
+        protected int dax = 10;
+        protected int day = 10;
+        protected int minZoom = 3;
+        protected double pixelPerDegree;
+        protected GeorefImage[][] images = new GeorefImage[dax][day];
+
+        protected String baseURL;
+        protected final int serializeFormatVersion = 3;
 
         public WMSLayer() {
                 this(tr("Blank Layer"), null);
-        }
-
-        public WMSLayer(String name, Grabber grabber) {
+                initializeImages();
+        }
+
+        public WMSLayer(String name, String baseURL) {
                 super(name);
-                this.grabber = grabber;
-        }
-
-        public void grab(Bounds b, double pixelPerDegree) throws IOException {
-                if (grabber == null) return;
-                images.add(grabber.grab(b, Main.main.proj, pixelPerDegree));
-                Main.map.mapView.repaint();
+                initializeImages();
+                this.baseURL = baseURL;
+        }
+
+        public void initializeImages() {
+                images = new GeorefImage[dax][day];
+                for(int x = 0; x<dax; ++x)
+                        for(int y = 0; y<day; ++y)
+                                images[x][y]= new GeorefImage(false);
+        }
+
+        public void grab(Bounds b, double _pixelPerDegree) {
+                if (baseURL == null) return;
+                //set resolution
+                if(started || Math.round(pixelPerDegree/10000) != Math.round(_pixelPerDegree/10000))
+                        initializeImages();
+                pixelPerDegree = _pixelPerDegree;
+                if(!started)stopAfterPaint = true;
+                started = true;
         }
 
@@ -70 +96 @@
 
         @Override public String getToolTipText() {
-                return tr("WMS layer ({0}), {1} tile(s) loaded", name, images.size());
+                if(started)
+                        return tr("WMS layer ({0}), automaticaly downloading in zoom {1}", name, Math.round(pixelPerDegree/10000));
+                else
+                        return tr("WMS layer ({0}), downloading in zoom {1}", name, Math.round(pixelPerDegree/10000));
         }
 
@@ -80 +109 @@
         }
 
+        private Bounds XYtoBounds (int x, int y) {
+                return new Bounds( 
+                        new LatLon( x * ImageSize / pixelPerDegree,
+                                         y * ImageSize / pixelPerDegree),
+                        new LatLon((x + 1) *  ImageSize / pixelPerDegree,
+                                   (y + 1) * ImageSize / pixelPerDegree));
+        }
+
+        private int modulo (int a, int b) {
+          if(a%b>=0)return a%b;
+          else return a%b+b;
+        }         
+
         @Override public void paint(Graphics g, final MapView mv) {
-                for (GeorefImage img : images) img.paint(g, mv);
+                Bounds b = new Bounds(
+                        mv.getLatLon(0, mv.getHeight()),
+                        mv.getLatLon(mv.getWidth(), 0));
+                int bminx= (int)Math.floor ((b.min.lat() * pixelPerDegree ) / ImageSize );
+                int bminy= (int)Math.floor ((b.min.lon() * pixelPerDegree ) / ImageSize );
+                int bmaxx= (int)Math.ceil  ((b.max.lat() * pixelPerDegree ) / ImageSize );
+                int bmaxy= (int)Math.ceil  ((b.max.lon() * pixelPerDegree ) / ImageSize );
+
+
+                if( !started || (pixelPerDegree / (mv.getWidth() / (b.max.lon() - b.min.lon())) > minZoom) ){ //don't download when it's too outzoomed
+                        for(int x = 0; x<dax; ++x)
+                                for(int y = 0; y<day; ++y){
+                                                images[modulo(x,dax)][modulo(y,day)].paint(g, mv);
+                                }
+                } else {
+                        for(int x = bminx; x<bmaxx; ++x)
+                                for(int y = bminy; y<bmaxy; ++y){
+                                        GeorefImage img = images[modulo(x,dax)][modulo(y,day)];
+                                        if(!img.paint(g, mv) && !img.downloadingStarted){
+                                                //System.out.println(tr("------{0}|{1}|{2}|{3}", modulo(x,dax), modulo(y,day), img.downloadingStarted, img.isVisible(mv)));
+                                                img.downloadingStarted = true;
+                                                img.image = null;
+                                                Grabber gr = WMSPlugin.getGrabber(baseURL, XYtoBounds(x,y), Main.main.proj, pixelPerDegree, img, mv, this);
+                                                gr.start();
+                                }
+                        }
+                }
+                if(stopAfterPaint){
+                        started = false;
+                        stopAfterPaint = false;
+                }
         }
 
         @Override public void visitBoundingBox(BoundingXYVisitor v) {
-                for (GeorefImage img : images) {
-                        v.visit(img.min);
-                        v.visit(img.max);
-                }
+                for(int x = 0; x<dax; ++x)
+                        for(int y = 0; y<day; ++y)
+                                        if(images[x][y]!=null){
+                                                v.visit(images[x][y].min);
+                                                v.visit(images[x][y].max);
+                                        }
         }
 
@@ -99 +173 @@
                                 new JMenuItem(new LayerListDialog.ShowHideLayerAction(this)),
                                 new JMenuItem(new LayerListDialog.DeleteLayerAction(this)),                             
+                                new JSeparator(),
                                 new JMenuItem(new LoadWmsAction()),
                                 new JMenuItem(new SaveWmsAction()),
                                 new JSeparator(),
+                                new JMenuItem(new StartWmsAction()),
+                                new JMenuItem(new StopWmsAction()),
+                                new JSeparator(),
                                 new JMenuItem(new LayerListPopup.InfoAction(this))};
+
         }
 
         public GeorefImage findImage(EastNorth eastNorth) {
-                // Iterate in reverse, so we return the image which is painted last.
-                // (i.e. the topmost one)
-                for (int i = images.size() - 1; i >= 0; i--) {
-                        if (images.get(i).contains(eastNorth)) {
-                                return images.get(i);
-                        }
-                }
+                for(int x = 0; x<dax; ++x)
+                        for(int y = 0; y<day; ++y)
+                                        if(images[x][y]!=null && images[x][y].image!=null && images[x][y].min!=null && images[x][y].max!=null){
+                                                if (images[x][y].contains(eastNorth)) {
+                                                        return images[x][y];
+                                                }
+                                        }
                 return null;
         }
+
 
         public class SaveWmsAction extends AbstractAction {
@@ -122 +202 @@
                 public void actionPerformed(ActionEvent ev) {
                         File f = openFileDialog(false);
-                        try {
+                        try
+                        {
                                 FileOutputStream fos = new FileOutputStream(f);
                                 ObjectOutputStream oos = new ObjectOutputStream(fos);
                                 oos.writeInt(serializeFormatVersion);
-                                oos.writeInt(images.size());
-                                for (GeorefImage img : images) {
-                                        oos.writeObject(img);
-                                }
+                                oos.writeInt(dax);
+                                oos.writeInt(day);
+                                oos.writeInt(ImageSize);
+                                oos.writeDouble(pixelPerDegree);
+                                oos.writeObject(baseURL);
+                                oos.writeObject(images);
                                 oos.close();
                                 fos.close();
-                        } catch (Exception ex) {
+                        }
+                        catch (Exception ex) {
                                 ex.printStackTrace(System.out);
                         }
                 }
         }
-        
+
         public class LoadWmsAction extends AbstractAction {
                 public LoadWmsAction() {
@@ -145 +229 @@
                         File f = openFileDialog(true);
                         if (f == null) return;
-                        try {
+                        try
+                        {
                                 FileInputStream fis = new FileInputStream(f);
                                 ObjectInputStream ois = new ObjectInputStream(fis);
                                 int sfv = ois.readInt();
                                 if (sfv != serializeFormatVersion) {
-                                        JOptionPane.showMessageDialog(Main.parent, 
+                                        JOptionPane.showMessageDialog(Main.parent,
                                                 tr("Unsupported WMS file version; found {0}, expected {1}", sfv, serializeFormatVersion),
-                                                tr("File Format Error"), 
+                                                tr("File Format Error"),
                                                 JOptionPane.ERROR_MESSAGE);
                                         return;
                                 }
-                                int numImg = ois.readInt();
-                                for (int i=0; i< numImg; i++) {
-                                        GeorefImage img = (GeorefImage) ois.readObject();
-                                        images.add(img);
-                                }
+                                dax = ois.readInt();
+                                day = ois.readInt();
+                                ImageSize = ois.readInt();
+                                pixelPerDegree = ois.readDouble();
+                                baseURL = (String) ois.readObject();
+                                images = (GeorefImage[][])ois.readObject();
+
                                 ois.close();
                                 fis.close();
-                        } catch (Exception ex) {
+                                started = false;
+                        }
+                        catch (Exception ex) {
                                 // FIXME be more specific
                                 ex.printStackTrace(System.out);
-                                JOptionPane.showMessageDialog(Main.parent, 
-                                                tr("Error loading file"),
-                                                tr("Error"), 
-                                                JOptionPane.ERROR_MESSAGE);
-                                        return;
-                        }
-                }
-        }
-        
+                                JOptionPane.showMessageDialog(Main.parent,
+                                        tr("Error loading file"),
+                                        tr("Error"),
+                                        JOptionPane.ERROR_MESSAGE);
+                                return;
+                        }
+                }
+        }
+
+        public class StartWmsAction extends AbstractAction {
+                public StartWmsAction() {
+                        super(tr("Start automatic downloading"), null);
+                }
+                public void actionPerformed(ActionEvent ev) {
+                        started = true;
+                }
+        }
+
+        public class StopWmsAction extends AbstractAction {
+                public StopWmsAction() {
+                        super(tr("Stop automatic downloading"), null);
+                }
+                public void actionPerformed(ActionEvent ev) {
+                        started = false;
+                }
+        }
+
         protected static JFileChooser createAndOpenFileChooser(boolean open, boolean multiple) {
                 String curDir = Main.pref.get("lastDirectory");
@@ -184 +291 @@
                         fc.addChoosableFileFilter(ExtensionFileFilter.filters[i]);
                 fc.setAcceptAllFileFilterUsed(true);
-        
+
                 int answer = open ? fc.showOpenDialog(Main.parent) : fc.showSaveDialog(Main.parent);
                 if (answer != JFileChooser.APPROVE_OPTION)
                         return null;
-                
+
                 if (!fc.getCurrentDirectory().getAbsolutePath().equals(curDir))
                         Main.pref.put("lastDirectory", fc.getCurrentDirectory().getAbsolutePath());
@@ -194 +301 @@
                 if (!open) {
                         File file = fc.getSelectedFile();
-                        if (file == null || (file.exists() && JOptionPane.YES_OPTION != 
-                                        JOptionPane.showConfirmDialog(Main.parent, tr("File exists. Overwrite?"), tr("Overwrite"), JOptionPane.YES_NO_OPTION)))
+                        if (file == null || (file.exists() && JOptionPane.YES_OPTION !=
+                                JOptionPane.showConfirmDialog(Main.parent, tr("File exists. Overwrite?"), tr("Overwrite"), JOptionPane.YES_NO_OPTION)))
                                 return null;
                 }
-                
+
                 return fc;
         }
-        
+
         public static File openFileDialog(boolean open) {
                 JFileChooser fc = createAndOpenFileChooser(open, false);