| private static GetVisualTransform ( Visual v ) : System.Windows.Media.Matrix | ||
| v | Visual | |
| Результат | System.Windows.Media.Matrix | |
private static Matrix GetVisualTransform(Visual v)
{
Matrix m = Matrix.Identity;
// A visual can currently have two properties that affect
// its coordinate space:
// 1) Transform - any matrix
// 2) Offset - a simpification for just a 2D offset.
Transform transform = VisualTreeHelper.GetTransform(v);
if (transform != null) {
Matrix cm = transform.Value;
m = Matrix.Multiply(m, cm);
}
Vector offset = VisualTreeHelper.GetOffset(v);
m.Translate(offset.X, offset.Y);
return m;
}
