/// <summary>
/// 边框移动
/// </summary>
/// <param name="xOff"></param>
/// <param name="yOff"></param>
/// <param name="wOff"></param>
/// <param name="hOff"></param>
protected virtual void FrameMove(float xOff, float yOff, float wOff, float hOff)
{
SetRect(Calculation.OffsetRect(DataBk.Rect, xOff, yOff, wOff, hOff));
}
/// <summary>
/// 设置Rect时，需要先写入NewRect，然后计算，再将NewRect赋值给Rect
/// </summary>
/// <param name="rf"></param>
protected virtual void SetNewRect(RectangleF rf)
{
Calculation.LimitRect(ref rf);
_newRect = rf;
}
public virtual void MouseMove(PointF point)
{
SetRect(Calculation.OffsetRect(DataBk.Rect, point.X - DataBk.MousePos.X, point.Y - DataBk.MousePos.Y, 0, 0));
}