Changeset 16161 in osm for applications/editors/josm/plugins/slippymap

Timestamp:

2009-06-26T22:04:43+02:00 (15 years ago)

Author:

lvarga

Message:

Deleted second mail from repository to same author, Dave Hansen <dave@…>.
Merged another three patches. Look previous logs.

Now you can start to see how the TileSet gets used. In this
case, we're replacing the loadAllTiles() iteration with a
TileSet instead. Saves something like 50% of the lines of
code in that function.

In addition to using a TileSet, this also uses the Tile
class's pixelPos() function.

imgToTile is here to make the imageUpdate()
function simpler.
This also adds a nice little message about how many
tiles we've been downloading.

Just another two to be complete.

Location:

applications/editors/josm/plugins/slippymap/src/org/openstreetmap/josm/plugins/slippymap

Files:

• SlippyMapKey.java (modified) (1 diff)
• SlippyMapLayer.java (modified) (6 diffs)
• SlippyMapTile.java (modified) (1 diff)

applications/editors/josm/plugins/slippymap/src/org/openstreetmap/josm/plugins/slippymap/SlippyMapKey.java

@@ -12 +12 @@
  * @author LuVar <lubomir.varga@freemap.sk>
  * @author Dave Hansen <dave@sr71.net>
- * @author Dave Hansen <dave@linux.vnet.ibm.com>
  *
  */

applications/editors/josm/plugins/slippymap/src/org/openstreetmap/josm/plugins/slippymap/SlippyMapLayer.java

@@ -5 +5 @@
 import java.awt.Color;
 import java.awt.Component;
+import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Image;
 import java.awt.Point;
+import java.awt.Rectangle;
 import java.awt.event.ActionEvent;
 import java.awt.event.MouseAdapter;
@@ -14 +16 @@
 import java.util.ArrayList;
 import java.util.Comparator;
+import java.util.Enumeration;
 import java.util.Hashtable;
 import java.util.List;
@@ -42 +45 @@
  * @author LuVar <lubomir.varga@freemap.sk>
  * @author Dave Hansen <dave@sr71.net>
- * @author Dave Hansen <dave@linux.vnet.ibm.com>
  * 
  */
@@ -296 +298 @@
     void loadAllTiles() {
         MapView mv = Main.map.mapView;
-        int zoom = currentZoomLevel;
         LatLon topLeft = mv.getLatLon(0, 0);
         LatLon botRight = mv.getLatLon(mv.getWidth(), mv.getHeight());
-        z12x0 = lonToTileX(topLeft.lon(), zoom);
-        z12x1 = lonToTileX(botRight.lon(), zoom);
-        z12y0 = latToTileY(topLeft.lat(), zoom);
-        z12y1 = latToTileY(botRight.lat(), zoom);
-        if (z12x0 > z12x1) {
-            int tmp = z12x0;
-            z12x0 = z12x1;
-            z12x1 = tmp;
-        }
-        if (z12y0 > z12y1) {
-            int tmp = z12y0;
-            z12y0 = z12y1;
-            z12y1 = tmp;
-        }
+
+        TileSet ts = new TileSet(topLeft, botRight, currentZoomLevel);
+        
         // if there is more than 18 tiles on screen in any direction, do not
         // load all tiles!
-        if (z12x1 - z12x0 > 18) {
-            System.out
-                    .println("Not downloading all tiles because there is more than 18 tiles on X axis!");
-            return;
-        }
-        if (z12y1 - z12y0 > 18) {
-            System.out
-                    .println("Not downloading all tiles because there is more than 18 tiles on Y axis!");
-            return;
-        }
-
-        for (int x = z12x0 - 1; x <= z12x1; x++) {
-            for (int y = z12y0 - 1; y <= z12y1; y++) {
-                SlippyMapKey key = new SlippyMapKey(x, y, currentZoomLevel);
-                SlippyMapTile tile = tileStorage.get(key);
-                if (!key.valid) {
-                        System.out.println("paint-1() made invalid key");
-                        continue;
-                }
-                if (tile == null)
-                    tileStorage.put(key,
-                            tile = new SlippyMapTile(x, y, currentZoomLevel));
-                if (tile.getImage() == null) {
-                    this.loadSingleTile(tile);
-                }
-            }
-        }
+        if (ts.tilesSpanned() > (18*18)) {
+                System.out.println("Not downloading all tiles because there is more than 18 tiles on an axis!");
+                return;
+        }
+
+        for (Tile t : ts.allTiles()) {
+                SlippyMapTile tile = getOrCreateTile(t.x, t.y, currentZoomLevel);
+                if (tile.getImage() == null) {
+                        this.loadSingleTile(tile);
+                }
+        }//end of for Tile t
     }
 
@@ -655 +629 @@
         g.setColor(Color.black);
         g.drawString("currentZoomLevel=" + currentZoomLevel, 120, 120);
-    }// end of paint metod
-
+    }// end of paint method
+
+    /**
+     * This isn't very efficient, but it is only used when the
+     * user right-clicks on the map.
+     */
     SlippyMapTile getTileForPixelpos(int px, int py) {
-        int tilex = z12x1;
-        int tiley = z12y1;
-        for (int x = z12x0; x <= z12x1; x++) {
-
-            if (pixelpos[x - z12x0 + 1][0].x > px) {
-                tilex = x - 1;
-                break;
-            }
-        }
-        if (tilex == -1)
-            return null;
-        for (int y = z12y0; y <= z12y1; y++) {
-
-            if (pixelpos[0][y - z12y0 + 1].y > py) {
-                tiley = y - 1;
-                break;
-            }
-        }
-        if (tiley == -1) {
-            return null;
-        }
-
-        SlippyMapKey key = new SlippyMapKey(tilex, tiley, currentZoomLevel);
-        if (!key.valid) {
-            System.err.println("getTileForPixelpos("+px+","+py+") made invalid key");
-            return null;
-        }
-        SlippyMapTile tile = tileStorage.get(key);
-        if (tile == null)
-            tileStorage.put(key, tile = new SlippyMapTile(tilex, tiley, currentZoomLevel));
+        MapView mv = Main.map.mapView;
+        Point clicked = new Point(px, py);
+        LatLon topLeft = mv.getLatLon(0, 0);
+        LatLon botRight = mv.getLatLon(mv.getWidth(), mv.getHeight());
+        TileSet ts = new TileSet(topLeft, botRight, currentZoomLevel);
+        int z = currentZoomLevel;
+        
+        Tile clickedTile = null;
+        for (Tile t1 : ts.allTiles()) {
+            Tile t2 = new Tile(t1.x+1, t1.y+1);
+            Point p1 = t1.pixelPos(z);
+            Point p2 = t2.pixelPos(z);
+            Rectangle r = new Rectangle(p1,new Dimension(p2.x, p2.y));
+            if (!r.contains(clicked))
+                continue;
+            clickedTile  = t1;
+            break;
+        }
+        if (clickedTile == null)
+             return null;
+        System.out.println("clicked on tile: " + clickedTile.x + " " + clickedTile.y);
+        SlippyMapTile tile = getOrCreateTile(clickedTile.x, clickedTile.y, currentZoomLevel);
         checkTileStorage();
         return tile;
@@ -752 +722 @@
     }
 
-    public boolean imageUpdate(Image img, int infoflags, int x, int y,
-            int width, int height) {
-        boolean done = ((infoflags & (ERROR | FRAMEBITS | ALLBITS)) != 0);
-        if ((infoflags & ERROR) != 0) {
-                String url = "unknown";
-                for (SlippyMapTile tile : tileStorage.values()) {
-                        if (tile.getImage() != img)
-                                continue;
-                        url = tile.getImageURL().toString();
-                }
-                System.err.println("imageUpdate(" + img + ") error " + url +")");
-        }
-        if ((infoflags & SOMEBITS) != 0) {
-                //if (y%100 == 0)
-                //    System.out.println("imageUpdate("+img+") SOMEBITS ("+x+","+y+")");
-        }
-        // Repaint immediately if we are done, otherwise batch up
-        // repaint requests every 100 milliseconds
-        needRedraw = true;
-        Main.map.repaint(done ? 0 : 100);
-        return !done;
-    }
+    private SlippyMapTile imgToTile(Image img) {
+                // we use the enumeration to avoid ConcurrentUpdateExceptions
+                // with other users of the tileStorage
+                Enumeration<SlippyMapTile> e = tileStorage.elements();
+                while (e.hasMoreElements()) {
+                        SlippyMapTile t = e.nextElement();
+                        if (t.getImageNoTimestamp() != img) {
+                                continue;
+                        }
+                        return t;
+                }
+                return null;
+        }
+    
+    private static int nr_loaded = 0;
+    private static int at_zoom = -1;
+    
+    public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height) {
+                boolean done = ((infoflags & (ERROR | FRAMEBITS | ALLBITS)) != 0);
+                SlippyMapTile imageTile = imgToTile(img);
+                if (imageTile == null) {
+                        return false;
+                }
+
+                if ((infoflags & ERROR) != 0) {
+                        String url; // = "unknown";
+                        url = imageTile.getImageURL().toString();
+                        System.err.println("imageUpdate(" + img + ") error " + url + ")");
+                }
+                if (((infoflags & ALLBITS) != 0)) {
+                        int z = imageTile.getZoom();
+                        if (z == at_zoom) {
+                                nr_loaded++;
+                        } else {
+                                System.out.println("downloaded " + nr_loaded + " at: " + at_zoom + " now going to " + z);
+                                nr_loaded = 0;
+                                at_zoom = z;
+                        }
+                        imageTile.markAsDownloaded();
+                }
+                if ((infoflags & SOMEBITS) != 0) {
+                        // if (y%100 == 0)
+                        //System.out.println("imageUpdate("+img+") SOMEBITS ("+x+","+y+")");
+                }
+                // Repaint immediately if we are done, otherwise batch up
+                // repaint requests every 100 milliseconds
+                needRedraw = true;
+                Main.map.repaint(done ? 0 : 100);
+                return !done;
+        }
 
     /*

applications/editors/josm/plugins/slippymap/src/org/openstreetmap/josm/plugins/slippymap/SlippyMapTile.java

@@ -17 +17 @@
  * @author LuVar <lubomir.varga@freemap.sk>
  * @author Dave Hansen <dave@sr71.net>
- * @author Dave Hansen <dave@linux.vnet.ibm.com>
  * 
  */