/// <summary>
/// Returns a layer for the basemap according to that chosen by the user and saved in settings. If offline and an associated mbtiles file is present, the mbtiles layer is returned.
/// </summary>
/// <returns></returns>
public static MapLayer GetBaseMap()
{
var dirPath = Path.Combine(App.TileLocation, "mbtiles");
var BL = Preferences.Get("BaseLayer", "swisstopo_pixelkarte");
bool noInternet = MapModel.IsAppDisconnected();
var wmtsLayer = WMSLayer.CreatePixelkarteWMTSTileLayer();
if (BL == "osm")
{
wmtsLayer = OpenStreetMap.CreateTileLayer();
}
else if (BL == "swissimage")
{
wmtsLayer = WMSLayer.CreateSwissimageWMTSTileLayer();
}
var baseLayer = new MapLayer(true, 0, wmtsLayer);
if (noInternet)
{
var filename = "swisstopo_pixelkarte.mbtiles";
if (BL == "osm")
{
filename = "osm.mbtiles";
}
else if (BL == "swissimage")
{
filename = "swissimage.mbtiles";
}
foreach (var file in System.IO.Directory.GetFiles(dirPath))
{
if (file.EndsWith(filename))
{
var offlineLayer = WMSLayer.CreateOfflineLayer(file) as TileLayer;
baseLayer = new MapLayer(true, 0, offlineLayer);
return(baseLayer);
}
}
}
return(baseLayer);
}
/// <summary>
/// Create an array of map layers: either mbtiles layers if offline and the mbtiles file exists, or direct links to the map servers
/// </summary>
/// <returns>An observable collection of map layers</returns>
public static ObservableCollection <MapLayer> MakeArrayOfLayers()
{
int i = 0;
//Add mbtiles layers
var dirPath = Path.Combine(App.TileLocation, "mbtiles");
//Create directory if it doesn't exist
if (!File.Exists(dirPath))
{
Directory.CreateDirectory(dirPath);
}
//Get the offline layers
var offlineLayers = GetOfflineLayers(dirPath);
//Get the online layers
var layers = GetLayersForMap(App.CurrentProjectId);
//Create an array for adding the layers into in an ordered fashion
var mapLayersTemp = new MapLayer[layers.Count];
//Add online wms layers
var layerStack = layers.OrderBy(o => o.order).ToList();
bool noInternet = MapModel.IsAppDisconnected();
foreach (var layer in layerStack)
{
//Now add the layers in their correct order
try
{
var layerNo = Math.Max(layers.Count - layer.order, 0);
bool offlineLayerExists = offlineLayers.Keys.Contains(layer.title);
if (noInternet && offlineLayerExists)
{
//If no internet, check for saved tiles
ILayer offlineLayer;
offlineLayers.TryGetValue(layer.title, out offlineLayer);
if (offlineLayer != null)
{
offlineLayer.Opacity = layer.opacity;
offlineLayer.Enabled = layer.visible;
var WmsLayer = new MapLayer(true, 0, offlineLayer);
WmsLayer.Opacity = layer.opacity;
WmsLayer.Enabled = layer.visible;
WmsLayer.LayerZ = layer.order;
WmsLayer.Name = layer.title;
mapLayersTemp.SetValue(WmsLayer, layerNo);
var path = dirPath + "/" + layer.title;
FileInfo fi = new FileInfo(dirPath + "/" + layer.title + ".mbtiles");
if (fi != null)
{
WmsLayer.LocalStorage = fi.Length;
}
else
{
WmsLayer.LocalStorage = 0;
}
i++;
}
}
else
{
//If internet, read directly from WMS
var layerWms = WMSLayer.CreateWMSLayer(layer.url, layer.wmsLayer, "EPSG:3857", layer.title);
layerWms.Opacity = layer.opacity;
layerWms.Enabled = layer.visible;
if (layerWms != null)
{
var WmsLayer = new MapLayer(true, 0, layerWms);
WmsLayer.Opacity = layer.opacity;
WmsLayer.Enabled = layer.visible;
WmsLayer.LayerZ = layer.order;
WmsLayer.Name = layer.title;
mapLayersTemp.SetValue(WmsLayer, layerNo);
if (offlineLayerExists)
{
var path = dirPath + "/" + layer.title;
FileInfo fi = new FileInfo(dirPath + "/" + layer.title + ".mbtiles");
if (fi != null)
{
WmsLayer.LocalStorage = fi.Length;
}
else
{
WmsLayer.LocalStorage = 0;
}
}
i++;
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
var mapLayersTempList = mapLayersTemp.ToList().GetRange(0, i);
return(new ObservableCollection <MapLayer>(mapLayersTempList as List <MapLayer>));
}
