public PersistentInterest(AsyncRef asyncRef)
{
interestList = new InterestList();
interestList.Add(asyncRef);
interestList.Activate();
asyncRef.AddCallback(AsyncCompleteCallback);
}
private void HandleUpdate()
{
if (!needUpdate)
{
return;
}
needUpdate = false;
Monitor.Enter(this);
try
{
if (previewInterest != null)
{
previewInterest.Dispose();
previewInterest = null;
waitingForCI = null;
}
if (_legend != null)
{
try
{
IFuture renderedLegendFuture =
_legend.GetRenderedLegendFuture(displayableSource, (FutureFeatures)5);
if (previewFuture != renderedLegendFuture)
{
previewFuture = renderedLegendFuture;
AsyncRef asyncRef =
(AsyncRef)renderedLegendFuture.Realize("LegendOptionsPanel.UpdatePreviewPanel");
if (asyncRef.present == null)
{
waitingForCI = new CallbackIgnorinator(this);
asyncRef.AddCallback(waitingForCI.Callback);
asyncRef.SetInterest(524296);
previewInterest = new InterestList();
previewInterest.Add(asyncRef);
previewInterest.Activate();
UpdatePreviewImage(null);
}
else
{
if (asyncRef.present is ImageRef)
{
UpdatePreviewImage((ImageRef)asyncRef.present);
}
}
}
}
catch (Legend.RenderFailedException)
{
}
}
}
finally
{
Monitor.Exit(this);
}
}
private void PaintGraphics(PaintSpecification e, LatLonZoom llz)
{
tilesRequired = 0;
tilesAvailable = 0;
asyncRequestGeneration++;
if (baseLayer == null)
{
return;
}
InterestList interestList = activeTiles;
activeTiles = new InterestList();
e.ResetClip();
e.Graphics.FillRectangle(new SolidBrush(Color.LightPink), new Rectangle(new Point(0, 0), e.Size));
List <PaintKit> list = new List <PaintKit>();
list.AddRange(AssembleLayer(e, llz, baseLayer, 0));
int num = 1;
foreach (IDisplayableSource current in alphaLayers)
{
list.AddRange(AssembleLayer(e, llz, current, num));
num++;
}
activeTiles.Activate();
PaintKits(e.Graphics, list);
e.ResetClip();
if (userRegionViewController != null)
{
e.ResetClip();
userRegionViewController.Paint(e, llz, Size);
}
if (MapDrawingOption.IsEnabled(ShowCrosshairs))
{
Pen pen = new Pen(Color.Yellow);
Pen[] array = new[] { pen, new Pen(Color.Black)
{
DashStyle = DashStyle.Dash
} };
for (int i = 0; i < array.Length; i++)
{
Pen pen2 = array[i];
e.Graphics.DrawLine(pen2, 0, Size.Height / 2, Size.Width, Size.Height / 2);
e.Graphics.DrawLine(pen2, Size.Width / 2, 0, Size.Width / 2, Size.Height);
}
}
if (MapDrawingOption.IsEnabled(ShowPushPins) && pinList != null)
{
List <PositionAssociationView> list2 = new List <PositionAssociationView>();
list2.AddRange(pinList);
list2.Sort(delegate(PositionAssociationView p0, PositionAssociationView p1)
{
double num2 = p1.position.pinPosition.lat - p0.position.pinPosition.lat;
if (num2 != 0.0)
{
if (num2 <= 0.0)
{
return(-1);
}
return(1);
}
else
{
double num3 = p1.position.pinPosition.lon - p0.position.pinPosition.lon;
if (num3 == 0.0)
{
return(0);
}
if (num3 <= 0.0)
{
return(-1);
}
return(1);
}
});
foreach (PositionAssociationView current2 in list2)
{
DrawMarker(current2, e);
}
}
if (interestList != null)
{
interestList.Dispose();
}
if (tilesRequired == 0 || tilesAvailable == tilesRequired)
{
displayProgressBar.Visible = false;
return;
}
displayProgressBar.Visible = true;
displayProgressBar.Minimum = 0;
displayProgressBar.Maximum = tilesRequired;
displayProgressBar.Value = tilesAvailable;
}