public override IMeasuredLabelItem[] GetMeasuredItems(Graphics g, FontX font, StringFormat strfmt, Altaxo.Data.AltaxoVariant[] items)
{
MeasuredLabelItem[] litems = new MeasuredLabelItem[items.Length];
FontX localfont1 = font;
FontX localfont2 = font.WithSize(font.Size * 2 / 3);
StringFormat localstrfmt = (StringFormat)strfmt.Clone();
string[] firstp = new string[items.Length];
string[] middel = new string[items.Length];
string[] expos = new string[items.Length];
double[] mants = new double[items.Length];
float maxexposize = 0;
int firstpartmin = int.MaxValue;
int firstpartmax = int.MinValue;
for (int i = 0; i < items.Length; ++i)
{
string firstpart, exponent;
if (items[i].IsType(Altaxo.Data.AltaxoVariant.Content.VDouble))
{
SplitInFirstPartAndExponent((double)items[i], out firstpart, out mants[i], out middel[i], out exponent);
if (exponent.Length > 0)
{
firstpartmin = Math.Min(firstpartmin, firstpart.Length);
firstpartmax = Math.Max(firstpartmax, firstpart.Length);
}
}
else
{
firstpart = items[i].ToString(); middel[i] = string.Empty; exponent = string.Empty;
}
firstp[i] = firstpart;
expos[i] = exponent;
maxexposize = Math.Max(maxexposize, g.MeasureString(exponent, GdiFontManager.ToGdi(localfont2), new PointF(0, 0), strfmt).Width);
}
if (firstpartmax > 0 && firstpartmax > firstpartmin) // then we must use special measures to equilibrate the mantissa
{
firstp = NumericLabelFormattingAuto.FormatItems(mants);
}
for (int i = 0; i < items.Length; ++i)
{
string mid = string.Empty;
if (!string.IsNullOrEmpty(expos[i]))
{
if (string.IsNullOrEmpty(firstp[i]))
mid = "10";
else
mid = "\u00D710";
}
litems[i] = new MeasuredLabelItem(g, localfont1, localfont2, localstrfmt, _prefix + firstp[i] + mid, expos[i], _suffix, maxexposize);
}
return litems;
}
public override void DrawItem(Graphics g, BrushX brush, FontX font, StringFormat strfmt, Altaxo.Data.AltaxoVariant item, PointF morg)
{
string firstpart, middelpart, exponent;
double mant;
SplitInFirstPartAndExponent((double)item, out firstpart, out mant, out middelpart, out exponent);
var gdiFont = GdiFontManager.ToGdi(font);
SizeF size1 = g.MeasureString(_prefix + firstpart + middelpart, gdiFont, morg, strfmt);
g.DrawString(_prefix + firstpart + middelpart, gdiFont, brush, morg, strfmt);
var orginalY = morg.Y;
morg.X += size1.Width;
morg.Y += size1.Height / 3;
FontX font2 = font.WithSize(font.Size * 2 / 3.0);
var gdiFont2 = GdiFontManager.ToGdi(font2);
g.DrawString(exponent, gdiFont2, brush, morg);
if (!string.IsNullOrEmpty(_suffix))
{
morg.X += g.MeasureString(exponent, gdiFont2, morg, strfmt).Width;
morg.Y = orginalY;
}
if (!string.IsNullOrEmpty(_suffix))
{
g.DrawString(_suffix, gdiFont, brush, morg, strfmt);
}
}