public override bool Contains(TileIndex id)
{
return(cache.ContainsKey(id));
}
public void BeginSaveImage(TileIndex id, BitmapSource image, Stream stream)
{
cache[id] = image;
}
public abstract DataRect GetTileBounds(TileIndex id);
private Stream BeginLoadStreamAsync(TileIndex id)
{
string imagePath = GetImagePath(id);
return(new FileStream(imagePath, FileMode.Open, FileAccess.Read));
}
public override bool Contains(TileIndex id)
{
return(isNetworkAvailable && MinLevel <= id.Level && id.Level <= MaxLevel);
}
protected abstract string CreateRequestUriCore(TileIndex index);
public string CreateRequestUri(TileIndex id)
{
return(CreateRequestUriCore(id));
}
public void Add(BitmapSource key, TileIndex value)
{
cache.Add(key, value);
}
protected virtual string GetNameByIndex(TileIndex index)
{
return(string.Concat(index.X.ToString(), "x", index.Y.ToString()));
}