isOutbounding function
Computing bounding
Implementation
bool isOutbounding({
required double dx,
required double dy,
required Offset offset,
required Offset scroll,
required Size itemSize,
required Size gridSize,
}) {
final tx = dx + scroll.dx;
final ty = dy + scroll.dy;
final left = tx - offset.dx - itemSize.width / 2 - 16.0;
final top = ty - offset.dy - itemSize.height / 2 - 16.0;
final inx = left > -itemSize.width && left < gridSize.width;
final iny = top > -itemSize.height && top < gridSize.height;
return !inx || !iny;
}