calculateTotalRequiredWidth<T, K> static method

double calculateTotalRequiredWidth<T, K>(List<TTableHeader<T, K>> headers, bool selectable, bool expandable, { int maxTreeLevel = 0, })

Calculates the minimum total width required for the table view.

Implementation

static double calculateTotalRequiredWidth<T, K>(
  List<TTableHeader<T, K>> headers,
  bool selectable,
  bool expandable, {
  int maxTreeLevel = 0,
}) {
  double totalWidth = 0;

  // Add width for expand/select columns
  if (expandable) totalWidth += 50;
  if (selectable) totalWidth += 50;

  final treeIndentBonus = maxTreeLevel > 0 ? (maxTreeLevel * 16.0 + 48.0) : 0.0;

  for (int i = 0; i < headers.length; i++) {
    final header = headers[i];
    final extraWidth = (i == 0) ? treeIndentBonus : 0.0;

    if (header.maxWidth != null && header.maxWidth != double.infinity) {
      totalWidth += header.maxWidth! + extraWidth;
    } else if (header.minWidth != null && header.minWidth! > 0) {
      totalWidth += header.minWidth! + extraWidth;
    } else {
      // For flex columns, assume a minimum reasonable width
      totalWidth += 100 + extraWidth; // Default minimum width for flex columns
    }
  }

  // Add some padding for table margins/padding
  totalWidth += 32; // Account for horizontal padding

  return totalWidth;
}