Set the number of zoom levels for the marker layer based on the

[rails.git] / public / javascripts / map.js

diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index a48e71077093496cb5c0b11f985d96b63bdd29dc..046c754568fd87e957518281a1860a0dc90d38af 100644 (file)
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -3,54 +3,28 @@ var markers;
 var popup;
 
 function createMap(divName) {
-   OpenLayers.Util.onImageLoadError = function() {
-      this.src = OpenLayers.Util.getImagesLocation() + "404.png";
-   }
-
    map = new OpenLayers.Map(divName,
                             { maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
-                              numZoomLevels: 19,
                               maxResolution: 156543,
                               units: 'm',
                               projection: "EPSG:41001" });
 
-   var mapnik = new OpenLayers.Layer.TMS("Mapnik",
-                                         "http://tile.openstreetmap.org/",
-                                         { type: 'png', getURL: getTileURL, displayOutsideMaxExtent: true });
+   var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", { displayOutsideMaxExtent: true });
    map.addLayer(mapnik);
 
-   var osmarender = new OpenLayers.Layer.TMS("Osmarender",
-                                             "http://dev.openstreetmap.org/~ojw/Tiles/tile.php/",
-                                             { type: 'png', getURL: getTileURL, displayOutsideMaxExtent: true });
+   var osmarender = new OpenLayers.Layer.OSM.Osmarender("Osmarender", { displayOutsideMaxExtent: true });
    map.addLayer(osmarender);
 
-   markers = new OpenLayers.Layer.Markers("markers", { visibility: false });
+   var numZoomLevels = Math.max(mapnik.numZoomLevels, osmarender.numZoomLevels);
+   markers = new OpenLayers.Layer.Markers("Markers", { visibility: false, numZoomLevels: numZoomLevels });
    map.addLayer(markers);
 
    map.addControl(new OpenLayers.Control.LayerSwitcher());
+   map.addControl(new OpenLayers.Control.KeyboardDefaults());
 
    return map;
 }
 
-function getTileURL(bounds) {
-   var res = this.map.getResolution();
-   var x = Math.round((bounds.left - this.maxExtent.left) / (res * this.tileSize.w));
-   var y = Math.round((this.maxExtent.top - bounds.top) / (res * this.tileSize.h));
-   var z = this.map.getZoom();
-   var limit = Math.pow(2, z);
-
-   if (y < 0 || y >= limit)
-   {
-     return null;
-   }
-   else
-   {
-     x = ((x % limit) + limit) % limit;
-
-     return this.url + z + "/" + x + "/" + y + "." + this.type;
-   }
-}
-
 function getArrowIcon() {
    var size = new OpenLayers.Size(25, 22);
    var offset = new OpenLayers.Pixel(-30, -27);
@@ -73,17 +47,11 @@ function addMarkerToMap(position, icon, description) {
 }
 
 function openMapPopup(marker, description) {
-//   var box = document.createElement("div");
-//   box.innerHTML = description;
-//   box.style.display = 'none';
-//   box.style.width = "200px";
-//   document.body.appendChild(box);
-
    closeMapPopup();
 
    popup = new OpenLayers.Popup.AnchoredBubble("popup", marker.lonlat,
-                                               new OpenLayers.Size(200, 50),
-                                               "<p>" + description + "</p>",
+                                               sizeMapPopup(description),
+                                               "<p style='padding-right: 28px'>" + description + "</p>",
                                                marker.icon, true);
    popup.setBackgroundColor("#E3FFC5");
    map.addPopup(popup);
@@ -98,6 +66,27 @@ function closeMapPopup() {
    }
 }
 
+function sizeMapPopup(text) {
+   var box = document.createElement("div");
+
+   box.innerHTML = text;
+   box.style.visibility = "hidden";
+   box.style.position = "absolute";
+   box.style.top = "0px";
+   box.style.left = "0px";
+   box.style.width = "200px";
+   box.style.height = "auto";
+
+   document.body.appendChild(box);
+
+   var width = box.offsetWidth;
+   var height = box.offsetHeight;
+
+   document.body.removeChild(box);
+
+   return new OpenLayers.Size(width + 30, height + 24);
+}
+
 function removeMarkerFromMap(marker){
    markers.removeMarker(marker);
 }