Calculate grid position in 1D model

grid.dart

// If you have an array or string containing cell data for a "grid",
// you can calculate x and y coords using division and the row length.

// define the row length in the virtual grid
const rowLength = 8;

// create a 1D model representing the "grid"
final onScreenKeyboard = 'abcde123fghij456klmno789pqrst.@0uvwxyz_/^ ';

// this function will return the grid position of the given content (content must be unique)
Point getPos(String grid, String content) {
  final contentIndex = grid.indexOf(content);
  return Point(contentIndex ~/ rowLength, contentIndex % rowLength);
}