void ValidateMatrix(bool checkParent)
{
if (parent != null)
{
if (checkParent)
{
parent.ValidateMatrix(checkParent);
}
if (_parentMatrixVersion != parent._matrixVersion)
{
_outlineChanged = true;
_parentMatrixVersion = parent._matrixVersion;
}
}
if (_outlineChanged)
{
_outlineChanged = false;
_matrixVersion++;
Matrix mat = ToolSet.CreateMatrix(_position, _rotation, new Vector3(_scale.X, _scale.Y, 1), _skew);
if (parent != null)
{
_localToWorldMatrix = mat * parent._localToWorldMatrix;
}
else
{
_localToWorldMatrix = mat;
}
}
}
void UpdatePivotOffset()
{
float px = _pivot.X * _contentRect.Width;
float py = _pivot.Y * _contentRect.Height;
Matrix matrix = ToolSet.CreateMatrix(Vector3.Zero, _rotation, new Vector3(_scale.X, _scale.Y, 1), _skew);
Vector3 offset = new Vector3(px, py, 0);
Vector3.Transform(ref offset, ref matrix, out _pivotOffset);
}