public override void UpdateDownloadPriority(TileSource tileSource, int priority)
{
AsyncTileRequest tileRequest;
if (this.tileRequests.TryGetValue(tileSource, out tileRequest))
{
tileRequest.NetworkPriority = (NetworkPriority)priority;
}
}
public override void Download(TileInfo tileInfo, TileSource tileSource, AsyncTileRequestCompletedHandler callback, NetworkPriority networkPriority)
{
AsyncTileRequest tileRequest;
if (this.tileRequests.TryGetValue(tileSource, out tileRequest))
{
throw new InvalidOperationException("Multiple concurrent downloads of the same tile is not supported.");
}
AsyncTileRequestQueue.Instance.CreateRequest(tileSource.GetUri(tileInfo), tileInfo, networkPriority, callback);
}
public override void Cancel(TileSource tileSource)
{
AsyncTileRequest tileRequest;
if (!this.tileRequests.TryGetValue(tileSource, out tileRequest))
{
throw new InvalidOperationException(Messages.TileInProgressCancel);
}
tileRequest.IsAborted = true;
tileRequest.AbortIfInQueue();
tileRequests.Remove(tileSource);
}
public TileLayer(TileSource tileSource)
: this(tileSource, Utility.CreateUniqueId())
{
}
public TileLayer(TileSource tileSource, string id)
: base(id)
{
SetTileSource(tileSource);
}
public TileLayer(TileSource tileSource, string id)
: base(tileSource, id)
{
innerSource = tileSource;
}