public Texture2D GetTexture(string url)
{
if (string.IsNullOrEmpty(url))
{
return(null);
}
if (Images.ContainsKey(url))
{
return(Images[url]);
}
if (ImageDownloads.ContainsKey(url))
{
// waiting for download
return(null);
}
var download = new ImageDownload(this, url);
ImageDownloads.Add(url, download);
ActiveDownloads.Add(download);
return(null);
}
