private void DrawEllipse(SKCanvas canvas, EllipseDrawingFigure ellipse)
{
_paint.Color = new SKColor(0, 0, 0);
canvas.DrawOval(ellipse.Rectangle.Margin(2), _paint);
_paint.Color = new SKColor(255, 255, 255);
canvas.DrawOval(ellipse.Rectangle, _paint);
_paint.Color = new SKColor(0, 0, 0);
_paint.TextAlign = SKTextAlign.Center;
_paint.TextSize = GridWidth;
DrawText(canvas, ellipse.Center, ellipse.Text);
}
private EllipseDrawingFigure[] CreateEllipses(SKPoint pt1, SKPoint pt2)
{
var left = Math.Min(pt1.X, pt2.X);
var top = Math.Min(pt1.Y, pt2.Y);
var right = Math.Max(pt1.X, pt2.X);
var bottom = Math.Max(pt1.Y, pt2.Y);
var ellipses = new List <EllipseDrawingFigure>();
for (var x = left; x <= right; x += EllipseWidth)
{
for (var y = top; y <= bottom; y += EllipseWidth)
{
var ellipse = new EllipseDrawingFigure
{
Center = new SKPoint(x, y),
Width = EllipseWidth,
Text = (_completedEllipses.Count + ellipses.Count + 1).ToString(),
};
ellipses.Add(ellipse);
}
}
return(ellipses.ToArray());
}