/// <summary>
///
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public EllipseElement(float x, float y, float width, float height) : base()
{
this.ElementCursor = RectElement.ElementDefaultCursor;
this.leftTopPoint = new TractionPoint(this);
this.leftBottomPoint = new TractionPoint(this);
this.rightTopPoint = new TractionPoint(this);
this.rightBottomPoint = new TractionPoint(this);
keyPoint1 = new KeyPoint(0, 0, this);
keyPoint2 = new KeyPoint(0, 0, this);
keyPoint1.tractionPoint = leftTopPoint;
keyPoint2.tractionPoint = rightBottomPoint;
this.leftTopPoint.ElementCursor = Cursors.SizeNWSE;
this.leftBottomPoint.ElementCursor = Cursors.SizeNESW;
this.rightBottomPoint.ElementCursor = Cursors.SizeNWSE;
this.rightTopPoint.ElementCursor = Cursors.SizeNESW;
this.X = x;
Y = y;
Z = CIRCLE_DEFAULT_Z;
this.Width = width;
this.Height = height;
this.leftTopPoint.OnTractionEventHandler += OnLeftTopPointTraction;
this.leftBottomPoint.OnTractionEventHandler += OnLeftBottomPointTraction;
this.rightTopPoint.OnTractionEventHandler += OnRightTopPointTraction;
this.rightBottomPoint.OnTractionEventHandler += OnRightBottomPointTraction;
Visible = true;
ParentElement = null;
}
public void OnTraction(TractionPoint elemant, float x, float y)
{
if (KeyPointChangeEventHandler != null)
{
KeyPointChangeEventHandler(this, X, Y);
}
}
public KeyPoint(float x, float y, Element parent)
{
this.Parent = parent;
this.tractionPoint = new TractionPoint(x, y, parent);
tractionPoint.ParentCoordinate = parent.ParentCoordinate;
tractionPoint.ParentElement = parent;
tractionPoint.ElementCursor = Cursors.SizeAll;
tractionPoint.Z = tractionPoint.ParentElement.Z - 0.01f;
tractionPoint.Visible = true;
this.tractionPoint.OnTractionEventHandler += OnTraction;
}
public void OnRightBottomPointTraction(TractionPoint element, float x, float y)
{
leftBottomPoint.Y = y;
rightTopPoint.X = x;
if (this.Width < 0)
{
FlipHorizontal();
}
if (this.Height < 0)
{
FlipVertical();
}
OnElementChange(this);
}
public void OnLinePointTraction(TractionPoint tp, float x, float y)
{
switch (tp.Name)
{
case "tractionPoint0":
this.X = x;
this.Y = y;
break;
case "tractionPoint1":
this.X2 = x;
this.Y2 = y;
break;
default:
break;
}
}
public void FlipHorizontal()
{
this.leftTopPoint.OnTractionEventHandler -= OnLeftTopPointTraction;
this.leftBottomPoint.OnTractionEventHandler -= OnLeftBottomPointTraction;
this.rightTopPoint.OnTractionEventHandler -= OnRightTopPointTraction;
this.rightBottomPoint.OnTractionEventHandler -= OnRightBottomPointTraction;
System.Console.WriteLine("hFlip");
TractionPoint tmp = leftTopPoint;
leftTopPoint = rightTopPoint;
rightTopPoint = tmp;
tmp = leftBottomPoint;
leftBottomPoint = rightBottomPoint;
rightBottomPoint = tmp;
this.leftTopPoint.OnTractionEventHandler += OnLeftTopPointTraction;
this.leftBottomPoint.OnTractionEventHandler += OnLeftBottomPointTraction;
this.rightTopPoint.OnTractionEventHandler += OnRightTopPointTraction;
this.rightBottomPoint.OnTractionEventHandler += OnRightBottomPointTraction;
this.leftTopPoint.ElementCursor = Cursors.SizeNWSE;
this.leftBottomPoint.ElementCursor = Cursors.SizeNESW;
this.rightBottomPoint.ElementCursor = Cursors.SizeNWSE;
this.rightTopPoint.ElementCursor = Cursors.SizeNESW;
}
public void FlipVertical()
{
this.leftTopPoint.OnTractionEventHandler -= OnLeftTopPointTraction;
this.leftBottomPoint.OnTractionEventHandler -= OnLeftBottomPointTraction;
this.rightTopPoint.OnTractionEventHandler -= OnRightTopPointTraction;
this.rightBottomPoint.OnTractionEventHandler -= OnRightBottomPointTraction;
System.Console.WriteLine("vFlip");
TractionPoint tmp = leftTopPoint;
leftTopPoint = leftBottomPoint;
leftBottomPoint = tmp;
tmp = rightTopPoint;
rightTopPoint = rightBottomPoint;
rightBottomPoint = tmp;
this.leftTopPoint.OnTractionEventHandler += OnLeftTopPointTraction;
this.leftBottomPoint.OnTractionEventHandler += OnLeftBottomPointTraction;
this.rightTopPoint.OnTractionEventHandler += OnRightTopPointTraction;
this.rightBottomPoint.OnTractionEventHandler += OnRightBottomPointTraction;
this.leftTopPoint.ElementCursor = Cursors.SizeNWSE;
this.leftBottomPoint.ElementCursor = Cursors.SizeNESW;
this.rightBottomPoint.ElementCursor = Cursors.SizeNWSE;
this.rightTopPoint.ElementCursor = Cursors.SizeNESW;
System.Console.WriteLine("lt==lb:" + object.ReferenceEquals(leftTopPoint, leftBottomPoint));
}