translate method
Returns a new rectangle with translateX added to the x components and translateY added to the y components.
To translate a rectangle by an Offset rather than by separate x and y components, consider shift.
Implementation
Rect translate(double translateX, double translateY) {
return Rect.fromLTRB(
left + translateX,
top + translateY,
right + translateX,
bottom + translateY,
);
}