private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
{
if (point == null)
{
return;
}
if (!isOnEdge)
{
point.X = e.X;
}
if (point.X < State.Boundries.Left)
{
point.X = State.Boundries.Left;
}
if (point.X > State.Boundries.Right)
{
point.X = State.Boundries.Right;
}
point.Y = e.Y;
if (point.Y < State.Boundries.Top)
{
point.Y = State.Boundries.Top;
}
if (point.Y > State.Boundries.Bottom)
{
point.Y = State.Boundries.Bottom;
}
point = null;
isOnEdge = true;
pictureBox1.Invalidate();
State.SelectedCurve.SetValues();
UpdateOutputImage();
}
public BezierCurve(DragablePoint p0, DragablePoint p1, DragablePoint p2, DragablePoint p3)
{
Points[0] = p0;
Points[1] = p1;
Points[2] = p2;
Points[3] = p3;
SetValues();
}
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
if (point != null)
{
return;
}
for (int i = 1; i < 4; i++)
{
if (State.SelectedCurve.Points[i].IsHit(e.X, e.Y))
{
point = State.SelectedCurve.Points[i];
isOnEdge = i == 3;
break;
}
}
}