private void TileLayerDataChanged(object sender, DataChangedEventArgs e)
{
if (Schema == null) return;
var tiles = new List<MemoryStream>();
foreach (var tileLayer in Layers)
{
if (!tileLayer.Enabled) continue;
var tile = tileLayer.MemoryCache.Find(e.TileInfo.Index);
if (tile != null) tiles.Add(((IRaster) tile.Geometry).Data);
}
if (tiles.Count == 0) return;
if (tiles.Count == 1)
{
AddBitmapToCache(e, tiles.First()); // If there is 1 tile then omit the rasterization to gain performance.
}
else
{
var tileWidth = Schema.GetTileWidth(e.TileInfo.Index.Level);
var tileHeight = Schema.GetTileHeight(e.TileInfo.Index.Level);
#if SILVERLIGHT
RunOnUIThread(() => AddBitmapToCache(e, CombineBitmaps(tiles, tileWidth, tileHeight)));
#else
AddBitmapToCache(e, CombineBitmaps(tiles, tileWidth, tileHeight));
#endif
}
}
private void TileLayerDataChanged(object sender, DataChangedEventArgs e)
{
if (Schema == null) return;
var tiles = new List<MemoryStream>();
foreach (var tileLayer in Layers)
{
if (!tileLayer.Enabled) continue;
var tile = tileLayer.MemoryCache.Find(e.TileInfo.Index);
if (tile != null) tiles.Add(((IRaster)tile.Geometry).Data);
}
#if SILVERLIGHT
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
#endif
var bitmap = CombineBitmaps(tiles, Schema.Width, Schema.Height);
if (bitmap != null) MemoryCache.Add(e.TileInfo.Index, new Feature { Geometry = new Raster(bitmap, e.TileInfo.Extent.ToBoundingBox()), Styles = new List<IStyle> { new VectorStyle()} });
if (DataChanged != null) DataChanged(sender, e);
#if SILVERLIGHT
});
#endif
}
private void AddBitmapToCache(DataChangedEventArgs e, MemoryStream bitmap)
{
if (bitmap != null)
MemoryCache.Add(e.TileInfo.Index,
new Feature
{
Geometry = new Raster(bitmap, e.TileInfo.Extent.ToBoundingBox()),
Styles = new List<IStyle> {new VectorStyle()}
});
OnDataChanged(e);
}
private void OnDataChanged(object sender, DataChangedEventArgs e)
{
if (DataChanged != null)
{
DataChanged(sender, e);
}
}
private static string GetErrorMessage(DataChangedEventArgs e)
{
return (e.Cancelled) ? "Cancelled" : ((e.Error != null) ? e.Error.GetType() + ": " + e.Error.Message : "");
}
public void MapDataChanged(object sender, DataChangedEventArgs e)
{
if (e.Cancelled || e.Error != null)
{
//todo test code below:
//((Activity)Context).RunOnUiThread(new Runnable(Toast.MakeText(Context, GetErrorMessage(e), ToastLength.Short).Show));
}
else // no problems
{
((Activity)Context).RunOnUiThread(new Runnable(RefreshGraphics));
}
}
public void MapDataChanged(object sender, DataChangedEventArgs e)
{
string errorMessage;
DispatchQueue.MainQueue.DispatchAsync((Action)delegate
{
if (e == null)
{
errorMessage = "MapDataChanged Unexpected error: DataChangedEventArgs can not be null";
Console.WriteLine(errorMessage);
}
else if (e.Cancelled)
{
errorMessage = "MapDataChanged: Cancelled";
System.Diagnostics.Debug.WriteLine(errorMessage);
}
else if (e.Error is System.Net.WebException)
{
errorMessage = "MapDataChanged WebException: " + e.Error.Message;
Console.WriteLine(errorMessage);
}
else if (e.Error != null)
{
errorMessage = "MapDataChanged errorMessage: " + e.Error.GetType() + ": " + e.Error.Message;
Console.WriteLine(errorMessage);
}
RefreshGraphics();
});
}
private void OnDataChanged(DataChangedEventArgs e)
{
if (DataChanged != null) DataChanged(this, e);
}
private void LayerOnDataChanged(object sender, DataChangedEventArgs dataChangedEventArgs)
{
StartTimerToTriggerRasterize();
}
public void map_DataChanged(object sender, DataChangedEventArgs e)
{
if (!Dispatcher.CheckAccess())
{
Dispatcher.BeginInvoke(new DataChangedEventHandler(map_DataChanged), new object[] { sender, e });
}
else
{
if (e.Error == null && e.Cancelled == false)
{
Redraw();
}
else if (e.Cancelled)
{
errorMessage = "Cancelled";
OnErrorMessageChanged(EventArgs.Empty);
}
else if (e.Error is System.Net.WebException)
{
errorMessage = "WebException: " + e.Error.Message;
OnErrorMessageChanged(EventArgs.Empty);
}
else
{
errorMessage = e.Error.GetType() + ": " + e.Error.Message;
OnErrorMessageChanged(EventArgs.Empty);
}
}
}
protected void OnDataChanged(DataChangedEventArgs args)
{
var handler = DataChanged;
if (handler != null)
{
handler(this, args);
}
}
private void LayerOnDataChanged(object sender, DataChangedEventArgs dataChangedEventArgs)
{
_modified = true;
if (_buzy) return;
RestartTimer();
}
void MapDataChanged(object sender, DataChangedEventArgs e)
{
//ViewChanged should not be called here. This would cause a loop
BeginInvoke((Action) (() => DataChanged(sender, e)));
}
private void DataChanged(object sender, DataChangedEventArgs e)
{
if (e.Error == null && e.Cancelled == false)
{
Invalidate();
}
else if (e.Cancelled)
{
_errorMessage = "Cancelled";
OnErrorMessageChanged();
}
else if (e.Error is System.Net.WebException)
{
_errorMessage = "WebException: " + e.Error.Message;
OnErrorMessageChanged();
}
else if (e.Error == null)
{
_errorMessage = "Unknown Exception";
OnErrorMessageChanged();
}
else
{
_errorMessage = "Exception: " + e.Error.Message;
OnErrorMessageChanged();
}
}
public void MapDataChanged(object sender, DataChangedEventArgs e)
{
if (!Dispatcher.HasThreadAccess)
{
Task.Run(() => Dispatcher.RunAsync(
CoreDispatcherPriority.Normal, () => MapDataChanged(sender, e)))
.ConfigureAwait(false);
}
else
{
if (e.Cancelled)
{
ErrorMessage = "Cancelled";
OnErrorMessageChanged(EventArgs.Empty);
}
else if (e.Error is WebException)
{
ErrorMessage = "WebException: " + e.Error.Message;
OnErrorMessageChanged(EventArgs.Empty);
}
else if (e.Error != null)
{
ErrorMessage = e.Error.GetType() + ": " + e.Error.Message;
OnErrorMessageChanged(EventArgs.Empty);
}
else // no problems
{
RefreshGraphics();
}
}
}
private void AsyncLayerDataChanged(object sender, DataChangedEventArgs e)
{
OnDataChanged(sender, e);
}
private void TileFetcherDataChanged(object sender, DataChangedEventArgs e)
{
OnDataChanged(e);
}
public void MapDataChanged(object sender, DataChangedEventArgs e)
{
if (!Dispatcher.CheckAccess())
{
Dispatcher.BeginInvoke(new DataChangedEventHandler(MapDataChanged), new[] { sender, e });
}
else
{
if (e.Cancelled)
{
errorMessage = "Cancelled";
OnErrorMessageChanged(EventArgs.Empty);
}
else if (e.Error is System.Net.WebException)
{
errorMessage = "WebException: " + e.Error.Message;
OnErrorMessageChanged(EventArgs.Empty);
}
else if (e.Error != null)
{
errorMessage = e.Error.GetType() + ": " + e.Error.Message;
OnErrorMessageChanged(EventArgs.Empty);
}
else // no problems
{
RefreshGraphics();
}
}
}
