code: function ScaleColumns(colsByGroup, maxWidth, totalFlexGrow) {
    // calculate total width and flexgrow points for coulumns that can be resized
    angular.forEach(colsByGroup, (cols) => {
      cols.forEach((column) => {
        if (!column.canAutoResize){
          maxWidth -= column.width;
          totalFlexGrow -= column.flexGrow;
        } else {
          column.width = 0;
        }
      });
    });
  
    var hasMinWidth = {}
    var remainingWidth = maxWidth;
  
    // resize columns until no width is left to be distributed
    do {
      let widthPerFlexPoint = remainingWidth / totalFlexGrow;
      remainingWidth = 0;
      angular.forEach(colsByGroup, (cols) => {
        cols.forEach((column, i) => {
          // if the column can be resize and it hasn't reached its minimum width yet
          if (column.canAutoResize && !hasMinWidth[i]){
            let newWidth = column.width  + column.flexGrow * widthPerFlexPoint;
            if (column.minWidth !== undefined && newWidth < column.minWidth){
              remainingWidth += newWidth - column.minWidth;
              column.width = column.minWidth;
              hasMinWidth[i] = true;
            } else {
              column.width = newWidth;
            }
          }
        });
      });
    } while (remainingWidth !== 0);
  
  }
docs: Resizes columns based on the flexGrow property, while respecting manually set widths
  @param {array} colsByGroup
  @param {int} maxWidth
  @param {int} totalFlexGrow