Commit initial work on export tab.

app/controllers/export_controller.rb

@@ -1,6 +1,7 @@
 class ExportController < ApplicationController
   def start
     render :update do |page|
+      page.replace_html :sidebar_title, 'Export'
       page.replace_html :sidebar_content, :partial => 'start'
       page.call "openSidebar"
     end

app/views/export/_start.rhtml

@@ -0,0 +1,103 @@
+<% form_tag :action => 'next' do %>
+
+  <p class="export_heading">Area to Export</p>
+
+  <div class="export_bounds">
+    <%= text_field('export', 'maxlat', { :size => 10, :class => "export_bound" }) %>
+    <br/>
+    <%= text_field('export', 'minlon', { :size => 10, :class => "export_bound" }) %>
+    <%= text_field('export', 'maxlon', { :size => 10, :class => "export_bound" }) %>
+    <br/>
+    <%= text_field('export', 'minlat', { :size => 10, :class => "export_bound" }) %>
+  </div>
+
+  <p class="export_heading">Format to Export</p>
+
+  <div class="export_details">
+    <%= radio_button('export', 'format', 'osm' ) %>OpenStreetMap XML Data
+    <br/>
+    <%= radio_button('export', 'format', 'png' ) %>PNG Image
+    <br/>
+    <%= radio_button('export', 'format', 'pdf' ) %>PDF Document
+    <br/>
+    <%= radio_button('export', 'format', 'svg' ) %>SVG Document
+  </div>
+
+  <div id="export_osm">
+    <p class="export_heading">Licence</p>
+
+    <div class="export_details">
+      <p>OSM license agreement blah blah blah...</p>
+    </div
+  </div>
+
+  <div id="export_mapnik">
+    <p class="export_heading">Options</p>
+
+    <div class="export_details">
+      <p>Scale 1 : <%= text_field('export', 'mapnik_scale', { :size => 10 }) %></p>
+    </div>
+  </div>
+
+<% end %>
+
+<script type="text/javascript">
+  <!--
+  function startExport() {
+    var vectors = new OpenLayers.Layer.Vector("Vector Layer", {
+      displayInLayerSwitcher: false,
+    });
+    map.addLayer(vectors);
+
+    var box = new OpenLayers.Control.DrawFeature(vectors, OpenLayers.Handler.RegularPolygon, { 
+      handlerOptions: {
+        keyMask: OpenLayers.Handler.MOD_CTRL,
+        sides: 4,
+        snapAngle: 90,
+        irregular: true,
+        persist: true,
+        callbacks: { done: boxComplete }
+      }
+    });
+    map.addControl(box);
+
+    box.activate();
+
+    map.events.register("moveend", map, mapMoved);
+    updateRegion(map.getExtent());
+  }
+
+  function setFormat(format) {
+    $("export_osm").style.display = "none";
+    $("export_mapnik").style.display = "none";
+    $("export_" + format).style.display = "inline";
+  }
+
+  $("export_format_osm").onclick = function() { setFormat("osm") };
+  $("export_format_png").onclick = function() { setFormat("mapnik") };
+  $("export_format_pdf").onclick = function() { setFormat("mapnik") };
+  $("export_format_svg").onclick = function() { setFormat("mapnik") };
+
+  function mapMoved() {
+    updateRegion(map.getExtent());
+  }
+
+  function boxComplete(box) {
+    map.events.unregister("moveend", map, mapMoved);
+    updateRegion(box.getBounds());
+  }
+
+  function updateRegion(bounds) {
+    var decimals = Math.pow(10, Math.floor(map.getZoom() / 3));
+    var bl = mercatorToLonLat(new OpenLayers.LonLat(bounds.left, bounds.bottom));
+    var tr = mercatorToLonLat(new OpenLayers.LonLat(bounds.right, bounds.top));
+
+    $("export_maxlat").value = Math.round(tr.lat * decimals) / decimals;
+    $("export_minlon").value = Math.round(bl.lon * decimals) / decimals;
+    $("export_maxlon").value = Math.round(tr.lon * decimals) / decimals;
+    $("export_minlat").value = Math.round(bl.lat * decimals) / decimals;
+  }
+
+  startExport();
+  // -->
+</script>

app/views/layouts/site.rhtml

@@ -36,14 +36,16 @@
         <%
         viewclass = ''
         editclass = ''
+        exportclass = ''
         traceclass = ''
         viewclass = 'active' if params['controller'] == 'site' and params['action'] == 'index' 
         editclass = 'active' if params['controller'] == 'site' and params['action'] == 'edit' 
-        editclass = 'active' if params['controller'] == 'campaign'
+        exportclass = 'active' if params['controller'] == 'site' and params['action'] == 'export'
         traceclass = 'active' if params['controller'] == 'trace'
         %>
         <li><%= link_to 'View', {:controller => 'site', :action => 'index'}, {:id => 'viewanchor', :title => 'view maps', :class => viewclass  } %></li>
         <li><%= link_to 'Edit', {:controller => 'site', :action => 'edit'}, {:id => 'editanchor', :title => 'edit maps', :class => editclass } %></li>
+        <li><%= link_to 'Export', {:controller => 'site', :action => 'export'}, {:id => 'exportanchor', :title => 'export map data', :class => exportclass } %></li>
         <li><%= link_to 'GPS traces', {:controller => 'trace', :action => 'list'}, {:id => 'traceanchor', :title => 'manage traces', :class => traceclass } %></li>
       </ul>
     </div>

app/views/site/export.rhtml

@@ -0,0 +1,162 @@
+<% content_for :greeting do %>
+<% if @user and !@user.home_lon.nil? and !@user.home_lat.nil? %>
+<%= link_to_function 'home', "setPosition(#{@user.home_lat}, #{@user.home_lon}, 10)" %> |
+<% end %>
+<% end %>
+
+<%= render :partial => 'sidebar', :locals => { :onopen => "resizeMap();", :onclose => "resizeMap();" } %>
+
+<div id="map">
+</div>
+
+<% if params['mlon'] and params['mlat'] %>
+<% marker = true %>
+<% mlon = h(params['mlon']) %> 
+<% mlat = h(params['mlat']) %>
+<% end %>
+
+<% if params['minlon'] and params['minlat'] and params['maxlon'] and params['maxlat'] %>
+<% bbox = true %>
+<% minlon = h(params['minlon']) %>
+<% minlat = h(params['minlat']) %>
+<% maxlon = h(params['maxlon']) %>
+<% maxlat = h(params['maxlat']) %>
+<% end %>
+
+<% if params['lon'] and params['lat'] %>
+<% lon =  h(params['lon']) %>
+<% lat =  h(params['lat']) %>
+<% zoom =  h(params['zoom'] || '5') %>
+<% layers = h(params['layers']) %>
+<% elsif params['mlon'] and params['mlat'] %>
+<% lon = h(params['mlon']) %> 
+<% lat = h(params['mlat']) %>
+<% zoom =  h(params['zoom'] || '12') %>
+<% layers = h(params['layers']) %>
+<% elsif cookies.key?("location") %>
+<% lon,lat,zoom,layers = cookies["location"].split(",") %>
+<% elsif @user and !@user.home_lon.nil? and !@user.home_lat.nil? %> 
+<% lon =  @user.home_lon %>
+<% lat =  @user.home_lat %>
+<% zoom = '10' %>
+<% else %>
+<% session[:location] = OSM::IPLocation(request.env['REMOTE_ADDR']) unless session[:location] %>
+<% if session[:location] %>
+<% bbox = true %>
+<% minlon = session[:location][:minlon] %>
+<% minlat = session[:location][:minlat] %>
+<% maxlon = session[:location][:maxlon] %>
+<% maxlat = session[:location][:maxlat] %>
+<% else %>
+<% lon =  '-0.1' %>
+<% lat =  '51.5' %>
+<% zoom =  h(params['zoom'] || '5') %>
+<% layers = h(params['layers']) %>
+<% end %>
+<% end %>
+
+<%= javascript_include_tag '/openlayers/OpenLayers.js' %>
+<%= javascript_include_tag '/openlayers/OpenStreetMap.js' %>
+<%= javascript_include_tag 'map.js' %>
+
+
+<script type="text/javascript">
+  <!--
+  var brokenContentSize = $("content").offsetWidth == 0;
+  var marker;
+  var map;
+  function init(){
+    map = createMap("map");
+
+    <% if bbox %>
+    var min = lonLatToMercator(new OpenLayers.LonLat(<%= minlon %>, <%= minlat %>));
+    var max = lonLatToMercator(new OpenLayers.LonLat(<%= maxlon %>, <%= maxlat %>));
+    var bbox = new OpenLayers.Bounds(min.lon, min.lat, max.lon, max.lat);
+
+    map.zoomToExtent(bbox);
+    <% else %>
+    var centre = lonLatToMercator(new OpenLayers.LonLat(<%= lon %>, <%= lat %>));
+    var zoom = <%= zoom %>;
+
+    <% if params['scale'] and params['scale'].length > 0 then %>
+    zoom = scaleToZoom(<%= params['scale'].to_f() %>);
+    <% end %>
+
+    map.setCenter(centre, zoom);
+    <% end %>
+
+//    <% if layers %>
+//    setMapLayers("<%= layers %>");
+//    <% end %>
+
+//    <% if marker %>
+//    marker = addMarkerToMap(lonLatToMercator(new OpenLayers.LonLat(<%= mlon %>, <%= mlat %>)));
+//    <% end %>
+
+    map.events.register("moveend", map, updateLocation);
+    map.events.register("changelayer", map, updateLocation);
+    updateLocation();
+
+    handleResize();
+
+    <%= remote_function(:url => { :controller => :export, :action => :start }) %>
+  }
+
+  function setPosition(lat, lon, zoom) {
+    var centre = lonLatToMercator(new OpenLayers.LonLat(lon, lat));
+
+    map.setCenter(centre, zoom);
+
+    if (marker)
+      removeMarkerFromMap(marker);
+
+    marker = addMarkerToMap(centre, getArrowIcon());
+  }
+
+  function updateLocation() {
+    var lonlat = mercatorToLonLat(map.getCenter());
+    var zoom = map.getZoom();
+    var layers = getMapLayers();
+
+    updatelinks(lonlat.lon, lonlat.lat, zoom, layers);
+
+    document.cookie = "location=" + lonlat.lon + "," + lonlat.lat + "," + zoom + "," + layers;
+  }
+
+  function resizeContent() {
+    var content = $("content");
+    var rightMargin = parseInt(getStyle(content, "right"));
+    var bottomMargin = parseInt(getStyle(content, "bottom"));
+
+    content.style.width = document.documentElement.clientWidth - content.offsetLeft - rightMargin;
+    content.style.height = document.documentElement.clientHeight - content.offsetTop - bottomMargin;
+  }
+  
+  function resizeMap() {
+    var centre = map.getCenter();
+    var zoom = map.getZoom();
+    var sidebar_width = $("sidebar").offsetWidth;
+
+    if (sidebar_width > 0) {
+      sidebar_width = sidebar_width + 5
+    }
+
+    $("map").style.left = (sidebar_width) + "px";
+    $("map").style.width = ($("content").offsetWidth - sidebar_width) + "px";
+    $("map").style.height = ($("content").offsetHeight - 2) + "px";
+
+    map.setCenter(centre, zoom);
+  }
+
+  function handleResize() {
+    if (brokenContentSize) {
+      resizeContent();
+    }
+
+    resizeMap();
+  }
+
+  window.onresize = handleResize;
+  window.onload = init;
+// -->
+</script>

config/routes.rb

@@ -64,6 +64,7 @@ ActionController::Routing::Routes.draw do |map|
   map.connect '/user/upload_image', :controller => 'user', :action => 'upload_image'
   map.connect '/index.html', :controller => 'site', :action => 'index'
   map.connect '/edit.html', :controller => 'site', :action => 'edit'
+  map.connect '/export.html', :controller => 'site', :action => 'export'
   map.connect '/search.html', :controller => 'way_tag', :action => 'search'
   map.connect '/login.html', :controller => 'user', :action => 'login'
   map.connect '/logout.html', :controller => 'user', :action => 'logout'
@@ -121,6 +122,9 @@ ActionController::Routing::Routes.draw do |map|
   map.connect '/geocoder/search', :controller => 'geocoder', :action => 'search'
   map.connect '/geocoder/description', :controller => 'geocoder', :action => 'description'
 
+  # export
+  map.connect '/export/start', :controller => 'export', :action => 'start'
+
   # messages
 
   map.connect '/user/:display_name/inbox', :controller => 'message', :action => 'inbox'

public/javascripts/map.js

@@ -8,6 +8,10 @@ OpenLayers._getScriptLocation = function () {
    
 function createMap(divName) {
    map = new OpenLayers.Map(divName, {
+      maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
+      maxResolution: 156543,
+      units: "m",
+      projection: "EPSG:900913",
       controls: [
          new OpenLayers.Control.ArgParser(), 
          new OpenLayers.Control.Attribution(),
@@ -28,11 +32,8 @@ function createMap(divName) {
 
    var numZoomLevels = Math.max(mapnik.numZoomLevels, osmarender.numZoomLevels);
    markers = new OpenLayers.Layer.Markers("Markers", { 
-      displayInLayerSwitcher: false, numZoomLevels: numZoomLevels,
+      displayInLayerSwitcher: false,
-      maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
+      numZoomLevels: numZoomLevels
-      maxResolution: 156543,
-      units: "m",
-      projection: "EPSG:41001"
    });
    map.addLayer(markers);
 

public/stylesheets/site.css

@@ -580,3 +580,31 @@ input {
 #attribution {
   display: none;
 }
+
+.export_heading {
+  margin: 0px;
+  padding: 3px 6px 3px 6px;
+  border: 1px solid #ccc;
+  background: #ddd;
+}
+
+.export_bounds {
+  width: 100%;
+  text-align: center;
+}
+
+.export_bound {
+  margin: 5px;
+}
+
+.export_details {
+  padding: 2px 6px 2px 6px;
+}
+
+#export_osm {
+  display: none;
+}
+
+#export_mapnik {
+  display: none;
+}