swf update with Surrey imagery support

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

diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index 3e6d687b0faac740c10d212c637e4ca9870af9e4..fd45d930462d3601e322c7121f927505b2938c15 100644 (file)
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -1,6 +1,7 @@
 var epsg4326 = new OpenLayers.Projection("EPSG:4326");
 var map;
 var markers;
+var vectors;
 var popup;
 
 var nonamekeys = {
@@ -12,10 +13,6 @@ var nonamekeys = {
    'www.openstreetmap.net': '0bd1654141c85d30b9c2ccdb5302f2e4'
 };
 
-OpenLayers._getScriptLocation = function () {
-   return "openlayers/";
-}
-
 function createMap(divName, options) {
    options = options || {};
 
@@ -25,37 +22,41 @@ function createMap(divName, options) {
          new OpenLayers.Control.Attribution(),
          new OpenLayers.Control.LayerSwitcher(),
          new OpenLayers.Control.Navigation(),
-         new OpenLayers.Control.PanZoomBar(),
-         new OpenLayers.Control.ScaleLine()
+         new OpenLayers.Control.PanZoom(),
+         new OpenLayers.Control.PanZoomBar()
       ],
       units: "m",
       maxResolution: 156543.0339,
-      numZoomLevels: 20
+      numZoomLevels: 20,
+      displayProjection: new OpenLayers.Projection("EPSG:4326")
    });
 
-   var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {
+   var mapnik = new OpenLayers.Layer.OSM.Mapnik(i18n("javascripts.map.base.mapnik"), {
+      keyid: "mapnik",
       displayOutsideMaxExtent: true,
       wrapDateLine: true
    });
    map.addLayer(mapnik);
 
-   var osmarender = new OpenLayers.Layer.OSM.Osmarender("Osmarender", {
+   var osmarender = new OpenLayers.Layer.OSM.Osmarender(i18n("javascripts.map.base.osmarender"), {
+      keyid: "osmarender",
       displayOutsideMaxExtent: true,
       wrapDateLine: true
    });
    map.addLayer(osmarender);
 
-   var cyclemap = new OpenLayers.Layer.OSM.CycleMap("Cycle Map", {
+   var cyclemap = new OpenLayers.Layer.OSM.CycleMap(i18n("javascripts.map.base.cycle_map"), {
+      keyid: "cyclemap",
       displayOutsideMaxExtent: true,
       wrapDateLine: true
    });
    map.addLayer(cyclemap);
 
    var nonamekey = nonamekeys[document.domain];
-   var noname = new OpenLayers.Layer.OSM("NoName", [
-      "http://a.tile.cloudmade.com/" + nonamekey + "/3/256/",
-      "http://b.tile.cloudmade.com/" + nonamekey + "/3/256/",
-      "http://c.tile.cloudmade.com/" + nonamekey + "/3/256/"
+   var noname = new OpenLayers.Layer.OSM(i18n("javascripts.map.base.noname"), [
+      "http://a.tile.cloudmade.com/" + nonamekey + "/3/256/${z}/${x}/${y}.png",
+      "http://b.tile.cloudmade.com/" + nonamekey + "/3/256/${z}/${x}/${y}.png",
+      "http://c.tile.cloudmade.com/" + nonamekey + "/3/256/${z}/${x}/${y}.png"
    ], {
       displayOutsideMaxExtent: true,
       wrapDateLine: true,
@@ -63,13 +64,14 @@ function createMap(divName, options) {
    });
    map.addLayer(noname);
 
-   var maplint = new OpenLayers.Layer.OSM.Maplint("Maplint", {
+   var maplint = new OpenLayers.Layer.OSM.Maplint(i18n("javascripts.map.overlays.maplint"), {
       displayOutsideMaxExtent: true,
       wrapDateLine: true
    });
    map.addLayer(maplint);
 
    var numZoomLevels = Math.max(mapnik.numZoomLevels, osmarender.numZoomLevels);
+
    markers = new OpenLayers.Layer.Markers("Markers", {
       displayInLayerSwitcher: false,
       numZoomLevels: numZoomLevels,
@@ -97,19 +99,83 @@ function addMarkerToMap(position, icon, description) {
    markers.addMarker(marker);
 
    if (description) {
-      marker.events.register("click", marker, function() { openMapPopup(marker, description) });
+      marker.events.register("mouseover", marker, function() { openMapPopup(marker, description) });
+      marker.events.register("mouseout", marker, function() { closeMapPopup() });
    }
 
    return marker;
 }
 
+function addObjectToMap(url, zoom, callback) {
+   var layer = new OpenLayers.Layer.GML("Objects", url, {
+      format: OpenLayers.Format.OSM,
+      style: {
+          strokeColor: "blue",
+          strokeWidth: 3,
+          strokeOpacity: 0.5,
+          fillOpacity: 0.2,
+          fillColor: "lightblue",
+          pointRadius: 6
+      },
+      projection: new OpenLayers.Projection("EPSG:4326"),
+      displayInLayerSwitcher: false
+   });
+
+   layer.events.register("loadend", layer, function() {
+      var extent;
+
+      if (this.features.length) {
+         extent = this.features[0].geometry.getBounds();
+
+         for (var i = 1; i < this.features.length; i++) {
+            extent.extend(this.features[i].geometry.getBounds());
+         }
+
+         if (zoom) {
+            if (extent) {
+               this.map.zoomToExtent(extent);
+            } else {
+               this.map.zoomToMaxExtent();
+            }
+         }
+      }
+
+      if (callback) {
+         callback(extent);
+      }
+   });
+
+   map.addLayer(layer);
+
+   layer.loadGML();
+}
+
+function addBoxToMap(boxbounds) {
+   if (!vectors) {
+     // Be aware that IE requires Vector layers be initialised on page load, and not under deferred script conditions
+     vectors = new OpenLayers.Layer.Vector("Boxes", {
+        displayInLayerSwitcher: false
+     });
+     map.addLayer(vectors);
+   }
+   var geometry = boxbounds.toGeometry().transform(epsg4326, map.getProjectionObject());
+   var box = new OpenLayers.Feature.Vector(geometry, {}, {
+      strokeWidth: 2,
+      strokeColor: '#ee9900',
+      fillOpacity: 0
+   });
+
+   vectors.addFeatures(box);
+
+   return box;
+}
+
 function openMapPopup(marker, description) {
    closeMapPopup();
 
-   popup = new OpenLayers.Popup.AnchoredBubble("popup", marker.lonlat, null,
-                                               description, marker.icon, true);
+   popup = new OpenLayers.Popup.FramedCloud("popup", marker.lonlat, null,
+                                            description, marker.icon, true);
    popup.setBackgroundColor("#E3FFC5");
-   popup.autoSize = true;
    map.addPopup(popup);
 
    return popup;
@@ -126,11 +192,18 @@ function removeMarkerFromMap(marker){
    markers.removeMarker(marker);
 }
 
-function getMapCenter(center, zoom) {
+function removeBoxFromMap(box){
+   vectors.removeFeature(box);
+}
+
+function getMapCenter() {
    return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326);
 }
 
 function setMapCenter(center, zoom) {
+   zoom = parseInt(zoom);
+   var numzoom = map.getNumZoomLevels();
+   if (zoom >= numzoom) zoom = numzoom - 1;
    map.setCenter(center.clone().transform(epsg4326, map.getProjectionObject()), zoom);
 }
 
@@ -138,10 +211,14 @@ function setMapExtent(extent) {
    map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject()));
 }
 
-function getMapExtent(extent) {
+function getMapExtent() {
    return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326);
 }
 
+function getMapZoom() {
+   return map.getZoom();
+}
+
 function getEventPosition(event) {
    return map.getLonLatFromViewPortPx(event.xy).clone().transform(map.getProjectionObject(), epsg4326);
 }