private async Task FilePropertyChanged(string file)
{
(TileSource as MBTileSource)?.Dispose();
ClearValue(TileSourceProperty);
ClearValue(SourceNameProperty);
ClearValue(DescriptionProperty);
ClearValue(MinZoomLevelProperty);
ClearValue(MaxZoomLevelProperty);
if (file != null)
{
var tileData = await MBTileData.CreateAsync(file);
int minZoom;
int maxZoom;
string s;
if (tileData.Metadata.TryGetValue("name", out s))
{
SourceName = s;
}
if (tileData.Metadata.TryGetValue("description", out s))
{
Description = s;
}
if (tileData.Metadata.TryGetValue("minzoom", out s) && int.TryParse(s, out minZoom))
{
MinZoomLevel = minZoom;
}
if (tileData.Metadata.TryGetValue("maxzoom", out s) && int.TryParse(s, out maxZoom))
{
MaxZoomLevel = maxZoom;
}
TileSource = CreateTileSource(tileData);
}
}
public static async Task <MBTileSource> CreateAsync(string file)
{
var tileData = await MBTileData.CreateAsync(file);
return(new MBTileSource(tileData, await tileData.ReadMetaDataAsync()));
}