getVisibleLength method

int getVisibleLength({ int startX = 0, })

Calculates the visible length starting from startX.

Implementation

int getVisibleLength({final int startX = 0}) {
  var length = 0;
  var currentPos = startX;
  for (final segment in segments) {
    for (final char in segment.text.characters) {
      if (char == '\t') {
        final advance = 8 - (currentPos % 8);
        length += advance;
        currentPos += advance;
      } else {
        final advance = isWide(char) ? 2 : 1;
        length += advance;
        currentPos += advance;
      }
    }
  }
  return length;
}