public async void DrawNFMenuFractal(Canvas nfFractalCanvas, Color startColor,
Color endColor)
{
//draw the H-Fractal in the third cell
nfFractalCanvas.Children.Clear();
NFFractal nfFractal = new NFFractal(nfFractalCanvas.Width / 2,
startColor, endColor, 2, nfFractalCanvas);
Point startPoint = new Point(nfFractalCanvas.Width / 2,
nfFractalCanvas.Height / 2);
NFDrawingParams nfDrawingParams = new NFDrawingParams(nfFractal.StartLength,
1, startPoint);
nfFractalCanvas = await nfFractal.Draw(Dispatcher, DispatcherPriority.Normal, CancellationToken.None,
nfDrawingParams);
}
/// <summary>
/// Creates a list of all points, which are used in the fractal
/// </summary>
private void FindDots(DrawingParameters drawingParameters, Dispatcher dispatcher)
{
try
{
NFDrawingParams nfDrawingParams = (NFDrawingParams)drawingParameters;
Point[] tPointsArr = GetFractalPoints(nfDrawingParams.CurrentCoords,
nfDrawingParams.CurrentLength);
SolidColorBrush brush = GetCurrentColor.Get(StartColor, EndColor,
nfDrawingParams.RecursionLevel - 1, MaxRecursionLevel - 1);
nfFractalPointsList.Add(new NFFractalPointData(tPointsArr, brush));
if (nfDrawingParams.RecursionLevel < MaxRecursionLevel)
{
//define new drawing params for four new elements and find the data about them
NFDrawingParams newDrawingParams = new NFDrawingParams(
nfDrawingParams.CurrentLength / 2, nfDrawingParams.RecursionLevel + 1,
tPointsArr[2]);
FindDots(newDrawingParams, dispatcher);
newDrawingParams.CurrentCoords = tPointsArr[3];
FindDots(newDrawingParams, dispatcher);
newDrawingParams.CurrentCoords = tPointsArr[4];
FindDots(newDrawingParams, dispatcher);
newDrawingParams.CurrentCoords = tPointsArr[5];
FindDots(newDrawingParams, dispatcher);
}
}
catch (OutOfMemoryException ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
}
catch (StackOverflowException ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
}
catch (Exception ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
}
}
/// <summary>
/// Draws a fractal on the main Canvas using the several pararmeters
/// to initalize the drawing process
/// </summary>
public async Task <Canvas> DrawFractal(double length, int depth, Point startPoint,
Dispatcher dispatcher, CancellationToken token)
{
try
{
Disable();
switch (CurrentFractal)
{
case 1:
QCFractal qcFractal = new QCFractal(length,
StartColor, EndColor, depth, MainCanvas);
DrawingParameters qcParams = new QCDrawingParams(length, 1,
startPoint, QCSidesDrawability);
if (DispatcherPriority == DispatcherPriority.Send)
{
TempCanvas = new Canvas
{
Width = 5000,
Height = 5000,
Background = new SolidColorBrush(Color.FromRgb(255, 255, 255))
};
qcFractal.MainCanvas = TempCanvas;
return(await Task.Run(() => qcFractal.Draw(dispatcher,
DispatcherPriority, token, qcParams)));
}
else
{
await Task.Run(() => qcFractal.Draw(dispatcher,
DispatcherPriority, token, qcParams));
}
return(null);
case 2:
SCFractal scFractal = new SCFractal(length,
StartColor, EndColor,
depth, MainCanvas);
DrawingParameters scParams = new SCDrawingParams(length, 1,
startPoint);
scFractal.InitialDraw(scParams);
if (DispatcherPriority == DispatcherPriority.Send)
{
TempCanvas = new Canvas
{
Width = 5000,
Height = 5000,
Background = new SolidColorBrush(Color.FromRgb(255, 255, 255))
};
scFractal.MainCanvas = TempCanvas;
return(await Task.Run(() => scFractal.Draw(dispatcher, DispatcherPriority,
token, scParams)));
}
else
{
await Task.Run(() => scFractal.Draw(dispatcher, DispatcherPriority,
token, scParams));
}
return(null);
case 3:
NFFractal nfFractal = new NFFractal(length,
StartColor, EndColor,
depth, MainCanvas);
DrawingParameters nfParams = new NFDrawingParams(length, 1,
startPoint);
if (DispatcherPriority == DispatcherPriority.Send)
{
TempCanvas = new Canvas
{
Width = 5000,
Height = 5000,
Background = new SolidColorBrush(Color.FromRgb(255, 255, 255))
};
nfFractal.MainCanvas = TempCanvas;
return(await Task.Run(() => nfFractal.Draw(dispatcher, DispatcherPriority,
token, nfParams)));
}
else
{
await Task.Run(() => nfFractal.Draw(dispatcher, DispatcherPriority,
token, nfParams));
}
return(null);
default:
MessageBox.Show("The fatal error happened, this should be never seen...");
return(null);
}
}
catch (OutOfMemoryException ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
return(null);
}
catch (StackOverflowException ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
return(null);
}
catch (IndexOutOfRangeException ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
return(null);
}
catch (NullReferenceException ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
return(null);
}
catch (TaskCanceledException ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
return(null);
}
catch (Exception ex)
{
dispatcher.Invoke(() => MessageBox.Show(ex.Message,
"Soft's message", MessageBoxButton.OK,
MessageBoxImage.Information));
return(null);
}
finally
{
Enable();
}
}
