/// <summary> Constructor for a new instance of the Metadata_Browse_AggregationViewer class </summary>
/// <param name="RequestSpecificValues"> All the necessary, non-global data specific to the current request </param>
/// <param name="ViewBag"> Aggregation-specific request information, such as aggregation object and any browse object requested </param>
public Map_Browse_AggregationViewer(RequestCache RequestSpecificValues, AggregationViewBag ViewBag) : base(RequestSpecificValues, ViewBag)
{
// Get the coordinate information
DataTable coordinates = Engine_Database.Get_All_Coordinate_Points_By_Aggregation(ViewBag.Hierarchy_Object.Code, RequestSpecificValues.Tracer);
// Add the google script information
StringBuilder scriptBuilder = new StringBuilder(10000);
// Only continue if there actually IS a map key
if (!String.IsNullOrWhiteSpace(UI_ApplicationCache_Gateway.Settings.System.Google_Map_API_Key))
{
scriptBuilder.AppendLine("<script src=\"https://maps.googleapis.com/maps/api/js?key=" + UI_ApplicationCache_Gateway.Settings.System.Google_Map_API_Key + "\" type=\"text/javascript\"></script>");
scriptBuilder.AppendLine("<script type=\"text/javascript\" src=\"" + Static_Resources_Gateway.Keydragzoom_Packed_Js + "\"></script>");
scriptBuilder.AppendLine("<script type=\"text/javascript\">");
scriptBuilder.AppendLine(" //<![CDATA[");
scriptBuilder.AppendLine(" // Global values");
scriptBuilder.AppendLine(" var map, bounds, custom_icon, info_window, last_center;");
scriptBuilder.AppendLine();
scriptBuilder.AppendLine(" // Initialize the map on load ");
scriptBuilder.AppendLine(" function load() { ");
decimal center_latitude = 0;
decimal center_longitude = 0;
int zoom = 1;
bool zoom_to_extent = true;
if ((ViewBag.Hierarchy_Object.Map_Browse_Display != null) && (ViewBag.Hierarchy_Object.Map_Browse_Display.Type == Item_Aggregation_Map_Coverage_Type_Enum.FIXED))
{
Item_Aggregation_Map_Coverage_Info mapTypeInfo = ViewBag.Hierarchy_Object.Map_Browse_Display;
if ((mapTypeInfo.Latitude.HasValue) && (mapTypeInfo.Longitude.HasValue))
{
center_latitude = mapTypeInfo.Latitude.Value;
center_longitude = mapTypeInfo.Longitude.Value;
zoom = 7;
if (mapTypeInfo.ZoomLevel.HasValue)
{
zoom = mapTypeInfo.ZoomLevel.Value;
}
zoom_to_extent = false;
}
}
scriptBuilder.AppendLine(" // Create the map and set some values");
scriptBuilder.AppendLine(" var latlng = new google.maps.LatLng(" + center_latitude + ", " + center_longitude + ");");
scriptBuilder.AppendLine(" var myOptions = { zoom: " + zoom + ", center: latlng, mapTypeId: google.maps.MapTypeId.TERRAIN, streetViewControl: false };");
scriptBuilder.AppendLine(" map = new google.maps.Map(document.getElementById('sbkMbav_MapDiv'), myOptions);");
scriptBuilder.AppendLine(" map.enableKeyDragZoom();");
if ((coordinates != null) && (coordinates.Rows.Count > 0))
{
scriptBuilder.AppendLine();
scriptBuilder.AppendLine(" // Create the custom icon / marker image");
scriptBuilder.AppendLine(" var iconSize = new google.maps.Size(11, 11);");
scriptBuilder.AppendLine(" var iconAnchor = new google.maps.Point(5, 5);");
scriptBuilder.AppendLine(" var pointer_image = '" + Static_Resources_Gateway.Map_Point_Png + "';");
scriptBuilder.AppendLine(" custom_icon = new google.maps.MarkerImage(pointer_image, iconSize, null, iconAnchor);");
scriptBuilder.AppendLine();
scriptBuilder.AppendLine(" // Create the bounds");
scriptBuilder.AppendLine(" bounds = new google.maps.LatLngBounds();");
scriptBuilder.AppendLine();
scriptBuilder.AppendLine(" // Create the info window for display");
scriptBuilder.AppendLine(" info_window = new google.maps.InfoWindow();");
scriptBuilder.AppendLine(" google.maps.event.addListener(info_window, 'closeclick', function() { if (last_center != null) { map.panTo(last_center); last_center = null; } });");
scriptBuilder.AppendLine();
scriptBuilder.AppendLine(" // Add all the points");
string last_latitude = coordinates.Rows[0]["Point_Latitude"].ToString();
string last_longitude = coordinates.Rows[0]["Point_Longitude"].ToString();
List <DataRow> bibids_in_this_point = new List <DataRow>();
foreach (DataRow thisRow in coordinates.Rows)
{
string latitude = thisRow["Point_Latitude"].ToString();
string longitude = thisRow["Point_Longitude"].ToString();
// Is this upcoming point new?
if ((latitude != last_latitude) || (longitude != last_longitude))
{
// Write the last point, if there was one
if (bibids_in_this_point.Count > 0)
{
// Add the point
add_single_point(last_latitude, last_longitude, RequestSpecificValues.Current_Mode, bibids_in_this_point, scriptBuilder);
// Assign this as the last value
last_latitude = latitude;
last_longitude = longitude;
// Clear the list of newspapers linked to this point
bibids_in_this_point.Clear();
}
// Start a new list and include this bib id
bibids_in_this_point.Add(thisRow);
}
else
{
// Add this bibid to the list
bibids_in_this_point.Add(thisRow);
}
}
// Write the last point, if there was one
if (bibids_in_this_point.Count > 0)
{
// Add the point
add_single_point(last_latitude, last_longitude, RequestSpecificValues.Current_Mode, bibids_in_this_point, scriptBuilder);
// Clear the list of newspapers linked to this point
bibids_in_this_point.Clear();
}
}
// Zoom to extent?
if (zoom_to_extent)
{
scriptBuilder.AppendLine(" map.fitBounds(bounds);");
}
scriptBuilder.AppendLine(" }");
scriptBuilder.AppendLine();
scriptBuilder.AppendLine(" // Add a single point ");
scriptBuilder.AppendLine(" function add_point(latitude, longitude, window_content) {");
scriptBuilder.AppendLine(" var point = new google.maps.LatLng(latitude, longitude);");
scriptBuilder.AppendLine(" bounds.extend(point);");
scriptBuilder.AppendLine(" var marker = new google.maps.Marker({ position: point, draggable: false, map: map, icon: custom_icon });");
scriptBuilder.AppendLine(" google.maps.event.addListener(marker, 'click', function() { info_window.setContent(window_content); last_center = map.getCenter(); info_window.open(map, marker); });");
scriptBuilder.AppendLine(" }");
scriptBuilder.AppendLine(" //]]>");
scriptBuilder.AppendLine("</script>");
}
else
{
// No Google Map API Key
scriptBuilder.AppendLine("<script type=\"text/javascript\">");
scriptBuilder.AppendLine(" //<![CDATA[ ");
scriptBuilder.AppendLine(" function load() { }");
scriptBuilder.AppendLine(" //]]>");
scriptBuilder.AppendLine("</script>");
}
Search_Script_Reference = scriptBuilder.ToString();
}
