private void Render()
{
while (!_stopped)
{
try
{
if (_syncQueue.Count > 0)
{
_currentCancellableArg = new CancellableRenderingEventArg();
Action <CancellableRenderingEventArg> currentAction = _syncQueue.Dequeue() as Action <CancellableRenderingEventArg>;
currentAction(_currentCancellableArg);
}
if (_syncQueue.Count == 0)
{
_autoresetEvent.WaitOne();
}
}
catch (Exception e)
{
Debug.Write(e.Message, "Exception");
}
}
}
protected override void DrawFractalPoints(Brush brush,
ITransformation transformation, RectangleF viewPort, IFractal fractal, Graphics g, CancellableRenderingEventArg cancellableArg)
{
//Less memory used, transforming and painting
//foreach (var point in fractal.Points)
//{
// if (cancellableArg.IsCancelled())
// return;
// PointF p = transformation.Apply(point);
// if (rectangle.Contains(p))
// g.FillRectangle(brush, p.X, p.Y, 2, 2);
//}
//Parallelize this
DateTime start = DateTime.Now;
var resultCollection = new ConcurrentBag <PointF>();
var points = fractal.Points;
Parallel.ForEach(fractal.Points, (point) =>
{
resultCollection.Add(transformation.Apply(point));
});
DateTime stop = DateTime.Now;
TimeSpan ts = stop - start;
LoggerProvider.Instance.Trace(fractal.Name + ": " + points.Count + "->" + ts.TotalMilliseconds);
foreach (var p in resultCollection)
{
if (cancellableArg.IsCancelled())
{
return;
}
if (viewPort.Contains(p))
{
g.FillRectangle(brush, p.X, p.Y, 1, 1);
}
}
}
protected abstract void DrawFractalPoints(Brush brush,
ITransformation transformation, RectangleF viewPort, IFractal fractal, Graphics g, CancellableRenderingEventArg cancellableArg);
protected override void DrawFractalPoints(Brush brush,
ITransformation transformation, RectangleF viewPort, IFractal fractal, Graphics g, CancellableRenderingEventArg cancellableArg)
{
//Less memory used, transforming and painting
try
{
foreach (var point in fractal.Points)
{
if (cancellableArg.IsCancelled())
{
return;
}
PointF p = transformation.Apply(point);
if (viewPort.Contains(p))
{
g.FillRectangle(brush, p.X, p.Y, 1, 1);
}
}
}
catch (Exception e)//If closing the view while still drawing,
{
}
}
