public void PointsInputHandler(object sender, MouseEventArgs e)
{
Contour currentContour = Contours.FirstOrDefault(x => !x.IsCompleted);
if (currentContour == null)
{
currentContour = new Contour(Contours.Count + 1);
Contours.Add(currentContour);
}
var newPoint = new Point(e.X, _drawer.CanvasHeight - e.Y)
{
Index = _lastPointIndex + 1
};
if (currentContour.Head == null)
{
currentContour.Add(newPoint);
_drawer.DrawPoints(Pens.Black, newPoint);
//Ekaterina
_drawer.RefreshImage();
//end Ekaterina
_lastPointIndex++;
}
else
{
if (currentContour.Tail == null)
{
var newLineSegment = new LineSegment(currentContour.Head, newPoint);
if (Contours.Where(x => x != currentContour).Any(x => x.IntersectsWithLineSegment(newLineSegment, IntersectionCheckOptions.WithEdgePoints)) ||
currentContour.IntersectsWithLineSegment(newLineSegment, IntersectionCheckOptions.WithoutEdgePoints))
{
MessageBox.Show(ErrorMessageBoxMessage, ErrorMessageBoxTitle);
}
else
{
currentContour.Add(newPoint);
_drawer.DrawLineSegments(Pens.Black, newLineSegment);
_lastPointIndex++;
}
}
else
{
var newLineSegment = new LineSegment(currentContour.Tail, newPoint);
if (Contours.Where(x => x != currentContour).Any(x => x.IntersectsWithLineSegment(newLineSegment, IntersectionCheckOptions.WithEdgePoints)) ||
currentContour.IntersectsWithLineSegment(newLineSegment, IntersectionCheckOptions.WithoutEdgePoints))
{
MessageBox.Show(ErrorMessageBoxMessage, ErrorMessageBoxTitle);
}
else
{
currentContour.Add(newPoint);
if (!currentContour.IsCompleted)
{
_drawer.DrawLineSegments(Pens.Black, newLineSegment);
_lastPointIndex++;
}
else
{
_drawer.DrawLineSegments(Pens.Black, new LineSegment(currentContour.Tail, currentContour.Head));
}
}
}
}
if (currentContour.IsCompleted)
{
_tabControlHelper.CreatePageForContour(currentContour);
}
}