add method

void add({
  1. double top = 0,
  2. double bottom = 0,
  3. double left = 0,
  4. double right = 0,
})

Implementation

void add({
  double top = 0,
  double bottom = 0,
  double left = 0,
  double right = 0,
}) {
  this.top += top;
  this.bottom += bottom;
  this.left += left;
  this.right += right;
}