inflate method

GRect inflate(
  1. double dx,
  2. double dy
)

Increases the size of the GRect object by the specified amounts, in pixels. The center point of the Rectangle object stays the same, and its size increases to the left and right by the dx value, and to the top and the bottom by the dy value.

Implementation

GRect inflate(double dx, double dy) {
  x -= dx;
  y -= dy;
  width += dx * 2;
  height += dy * 2;
  return this;
}