public static IEnumerable <Point> GetCorners(this Rect rect)
{
return(new[]
{
rect.GetTopLeft(),
rect.GetTopRight(),
rect.GetBottomLeft(),
rect.GetBottomRight()
});
}
public static Rect Transform(this Rect rect, Matrix matrix)
{
if (matrix.IsIdentity)
{
return(rect);
}
Point topLeft = rect.GetTopLeft() * matrix;
Point topRight = rect.GetTopRight() * matrix;
Point bottomLeft = rect.GetBottomLeft() * matrix;
Point bottomRight = rect.GetBottomRight() * matrix;
Point location = new Point(
topLeft.X.Min(topRight.X).Min(bottomLeft.X).Min(bottomRight.X),
topLeft.Y.Min(topRight.Y).Min(bottomLeft.Y).Min(bottomRight.Y));
Size size = new Size(
topLeft.X.Max(topRight.X).Max(bottomLeft.X).Max(bottomRight.X) - location.X,
topLeft.Y.Max(topRight.Y).Max(bottomLeft.Y).Max(bottomRight.Y) - location.Y);
return(new Rect(location, size));
}