/// <summary>
/// Deserialization constructor
/// </summary>
/// <param name="info"></param>
/// <param name="context"></param>
protected BezierHandle(SerializationInfo info, StreamingContext context) : base(info, context)
{
mTangent1 = info.GetValue("mTangent1", typeof(TangentHandle)) as TangentHandle;
mTangent2 = info.GetValue("mTangent2", typeof(TangentHandle)) as TangentHandle;
mTangent1.Cotangent = mTangent2;
mTangent2.Cotangent = mTangent1;
pen = new Pen(Color.OrangeRed);
}
/// <summary>
/// Initializes the handle
/// </summary>
private void Init()
{
this.Rectangle = new RectangleF(CurrentPoint, new SizeF(6, 6));
mTangent1 = new TangentHandle(this, new PointF(CurrentPoint.X - 40, CurrentPoint.Y + 40));
mTangent2 = new TangentHandle(this, new PointF(CurrentPoint.X + 40, CurrentPoint.Y - 40));
//this helps the symmetric behavior
mTangent1.Cotangent = mTangent2;
mTangent2.Cotangent = mTangent1;
//mTangent1.Enabled = false;
pen = new Pen(Color.OrangeRed);
}
/// <summary>
/// Gets for the given sub-elemts of the Bezier curve an intermediate point
/// </summary>
/// <param name="percent">the percentage along the curve</param>
/// <param name="handle1">the first handle of the segment</param>
/// <param name="handle2">the second handle of the segment</param>
/// <returns></returns>
private PointF GetBezier(float percent, BezierHandle handle1, BezierHandle handle2)
{
TangentHandle tangent1 = null, tangent2 = null;
if (handle1.HandleType == HandleTypes.Single)
{
if (handle1.Tangent1.Enabled)
{
tangent1 = handle1.Tangent1;
}
else
{
tangent1 = handle1.Tangent2;
}
}
else
{
tangent1 = handle1.Tangent2;
}
if (handle2.HandleType == HandleTypes.Single)
{
if (handle2.Tangent1.Enabled)
{
tangent2 = handle2.Tangent1;
}
else
{
tangent2 = handle2.Tangent2;
}
}
else
{
tangent2 = handle2.Tangent1;
}
return(GetBezier(percent, handle1.CurrentPoint, tangent1.CurrentPoint, tangent2.CurrentPoint, handle2.CurrentPoint));
}
private void Init()
{
mRectangle = new RectangleF(mCurrentPoint,new SizeF(6,6));
mTangent1 = new TangentHandle(this, new PointF(mCurrentPoint.X-40,mCurrentPoint.Y+40));
mTangent2 = new TangentHandle(this, new PointF(mCurrentPoint.X+40,mCurrentPoint.Y-40));
//this helps the symmetric behavior
mTangent1.Cotangent = mTangent2;
mTangent2.Cotangent = mTangent1;
//mTangent1.Enabled = false;
pen = new Pen(Color.OrangeRed);
}
