private void CreateLine(IBPoint startPosition, IBPoint endPosition)
{
//test sklonu, zda to pujde k ose x a nebo y
if (Math.Abs(endPosition.Y - startPosition.Y) > Math.Abs(endPosition.X - startPosition.X))
{
if ((startPosition.Y - endPosition.Y) < 0)
{
BresenhamMethod(startPosition.Y, startPosition.X, endPosition.Y, endPosition.X, false);
}
else
{
BresenhamMethod(endPosition.Y, endPosition.X, startPosition.Y, startPosition.X, false);
}
}
else
{
if ((startPosition.Y - endPosition.Y) > 0)
{
BresenhamMethod(endPosition.X, endPosition.Y, startPosition.X, startPosition.Y, true);
}
else
{
BresenhamMethod(startPosition.X, startPosition.Y, endPosition.X, endPosition.Y, true);
}
}
}
public void Fill(IBPoint point, Color fillingColor)
{
_fillingColor = _bitmap.GetPixel(point.X, point.Y);
Stack <Point> pixels = new Stack <Point>();
pixels.Push(new Point(point.X, point.Y));
while (pixels.Count > 0)
{
Point a = pixels.Pop();
if (!CanvasValidator.IsCursorOutsideCanvas(a))
{
var col = _bitmap.GetPixel(a.X, a.Y);
if (col.ToArgb().Equals(_fillingColor.ToArgb()) && !col.ToArgb().Equals(Setting.SelectedColor.ToArgb()))
{
_bitmap.SetPixel(a.X, a.Y, Setting.SelectedColor);
pixels.Push(new Point(a.X - 1, a.Y));
pixels.Push(new Point(a.X + 1, a.Y));
pixels.Push(new Point(a.X, a.Y - 1));
pixels.Push(new Point(a.X, a.Y + 1));
}
}
}
}
/// <summary>
/// Should call algorithm
/// </summary>
public void DrawLine(IBPoint startPoint, IBPoint endPoint)
{
CreateLine(startPoint, endPoint);
PaintPixel(startPoint.X, startPoint.Y, 255, 0, 0);
PaintPixel(endPoint.X, endPoint.Y, 0, 150, 0);
}
public CircleModel(List <IBPoint> points, IBPoint center, int radius)
{
Center = center;
Radius = radius;
_points = points;
Size = Setting.SelectedPixelSize;
}
public List <IBPoint> GetLinePoints(IBPoint start, IBPoint end)
{
_points = new List <IBPoint>();
CreateLine(start, end);
return(_points);
}
public IEnumerable <Point> GetCirclePoints(IBPoint center, int radius)
{
var points = new List <Point>();
//Init color
var color = Color.Red;
//Helping variables
Point dHelperVar = new Point(3, 2 * radius);
int p = 1 - radius;
//First init of coordinates
Point coordinates = new Point(0, radius);
while (coordinates.X <= coordinates.Y)
{
points.Add(new Point(center.X + coordinates.X, center.Y + coordinates.Y));
points.Add(new Point(center.X + coordinates.X, center.Y - coordinates.Y));
points.Add(new Point(center.X - coordinates.X, center.Y + coordinates.Y));
points.Add(new Point(center.X - coordinates.X, center.Y - coordinates.Y));
points.Add(new Point(center.X + coordinates.Y, center.Y + coordinates.X));
points.Add(new Point(center.X + coordinates.Y, center.Y - coordinates.X));
points.Add(new Point(center.X - coordinates.Y, center.Y + coordinates.X));
points.Add(new Point(center.X - coordinates.Y, center.Y - coordinates.X));
if (p > 0)
{
p -= dHelperVar.Y;
dHelperVar.Y -= 2;
coordinates.Y--;
}
p += dHelperVar.X;
dHelperVar.X += 2;
coordinates.X++;
}
return(points);
}
public bool DoesPointMatchPosition(IBPoint point)
{
return(X == point.X && Y == point.Y);
}
public void Fill(IBPoint point)
{
_fillingColor = _bitmap.GetPixel(point.X, point.Y);
}
public IEnumerable <Point> GetPointsOnLine(IBPoint start, IBPoint end)
{
return(GetPointsOnLine(start.X, start.Y, end.X, end.Y));
}
public void SetPixel(IBPoint point)
{
SetPixel(point.X, point.Y, point.Color.R, point.Color.G, point.Color.B, point.Color.A);
}
public void SetPixel(IBPoint point)
{
SetPixel(point.X, point.Y, point.Color);
}
