private int CalcDigitCount (TextBuffer buffer, int marginMinDigits) {
int maxChars = -1;
int lineCount = buffer.LineCount;
for (int line = 0 ; line < lineCount; line++) {
TextIter iter = buffer.GetIterAtLine(line);
int chars = iter.CharsInLine - (line == lineCount - 1 ? 0 : 1); //Subtract 1 for newline (except for the last line)
if (chars > maxChars) {
maxChars = chars;
}
}
int digitCount = CountDigitsInNumber(maxChars);
return Math.Max(digitCount, this.marginMinDigits);
}
