Different width of the same string with leading and trailing spaces

[Bykiev]

Hello, can you please explain why does the same sting with leading and trailing spaces has different size?

  string stringValue1 = "         Test Column AutoSize";
  string stringValue2 = "Test Column AutoSize         ";

  if (SystemFonts.TryGet("Calibri", CultureInfo.CurrentCulture, out FontFamily fontFamily))
  {
      Font font = new Font(fontFamily, 20, FontStyle.Regular);

      var measureResult = TextMeasurer.MeasureSize(stringValue1, new TextOptions(font) { Dpi = 96 });
      Console.WriteLine(measureResult.Width);

      var measureResult2 = TextMeasurer.MeasureSize(stringValue2, new TextOptions(font) { Dpi = 96 });
      Console.WriteLine(measureResult2.Width);
  }

Output:
286
287

[JimBobSquarePants]

Yep, that's perfectly possible.

It's due to the advance on e.

When measuring the first string the advance will be discounted since we're only measuring the size and it's the last glyph however you cannot ignore that advance when measuring the glyph when there are following glyphs.