private void OnSizeChanged(object sender, SizeChangedEventArgs e)
{
var width = e.NewSize.Width;
var height = e.NewSize.Height;
_startPoint = new Vector2((float)width / 2f, (float)height / 2f);
DrawCanvas.Invalidate();
}
private void OnPointerPressed(object sender, PointerRoutedEventArgs e)
{
_isDragging = true;
_startPoint = e.GetCurrentPoint(DrawCanvas).Position.ToVector2();
_endPoint = _startPoint;
_colorIndex = (_colorIndex + 1) % _colors.Length;
_splineColor = _colors[_colorIndex];
DrawCanvas.Invalidate();
}
private void OnPointerMoved(object sender, PointerRoutedEventArgs e)
{
if (!_isDragging)
{
return;
}
_drawSpline = true;
_endPoint = e.GetCurrentPoint(DrawCanvas).Position.ToVector2();
DrawCanvas.Invalidate();
}
private void BtnDraw_Click(object sender, EventArgs e)
{
Draw = true;
UpdateParameters();
//Run in new thread to keep UI responsive
Task.Run(() =>
{
int MiddleCanvasX = DrawCanvas.Size.Width / 2;
Trunk = new FractalLine(new Point(MiddleCanvasX, DrawCanvas.Size.Height), StartHeight, 90, null);
AddBranch(Trunk, 0);
DrawCanvas.Invalidate();
});
}
private void OnClearSplines(object sender, RoutedEventArgs e)
{
_pointData.Clear();
DrawCanvas.Invalidate();
}
private void OnHideControlPoints(object sender, RoutedEventArgs e)
{
_showControlPoints = false;
DrawCanvas.Invalidate();
}
