private void GeneratePointImpl(MaskForm mf, int amount)
{
int current = 0;
Task progressTask = Task.Run(() =>
{
while (current < amount && !CancellationSource.Token.IsCancellationRequested)
{
ProgressHandler?.Report(new CollectionProgressData {
value = current, maxValue = amount
});
Thread.Sleep(100);
}
}, CancellationSource.Token);
Random rnd = new Random();
HashSet <System.Drawing.Point> tempInsidePoints = new HashSet <System.Drawing.Point>();
HashSet <System.Drawing.Point> tempOutsidePoints = new HashSet <System.Drawing.Point>();
while (current < amount && !CancellationSource.Token.IsCancellationRequested)
{
System.Drawing.Point pt = new System.Drawing.Point(rnd.Next(0, mf.Width), rnd.Next(0, mf.Height));
if (mf.IsInForm(pt))
{
tempInsidePoints.Add(pt);
}
else
{
tempOutsidePoints.Add(pt);
}
++current;
}
if (!CancellationSource.Token.IsCancellationRequested)
{
InsidePoints = tempInsidePoints;
OutsidePoints = tempOutsidePoints;
}
progressTask.Wait();
progressTask.Dispose();
}
public async void GeneratePointAsync(MaskForm mf, int amount)
{
if (CurrentTask != null)
{
await CurrentTask;
}
CancellationSource = new CancellationTokenSource();
CurrentTask = Task.Run(() => GeneratePointImpl(mf, amount), CancellationSource.Token);
await CurrentTask;
CurrentTask.Dispose();
CurrentTask = null;
CancellationSource.Dispose();
CancellationSource = null;
FinishedEvent();
}