protected internal override Path GetDrawingPath(float dpi = 72)
{
var border = GetBorderWidth(dpi);
border = Common.ConvertPointsToPixelsFloat(dpi, border);
var rect = GetDrawingRectangle(dpi);
rect.Width += border;
rect.Height += border;
return(rect.GetPath());
}
private void FitTextToPath(float dpi)
{
if (!FitToPath)
{
return;
}
using (var bitmap = new Bitmap(1, 1, PixelFormat.Format32bppArgb, RgbColor.Transparent)
{
DpiX = dpi, DpiY = dpi
})
using (var graphics = bitmap.GetAdvancedGraphics())
{
var path = GetDrawingTextPath(dpi);
var pathLength = path.ToAdvancedPath().GetLength();
var font = CreateFont(graphics);
var textLength = font.MeasureString(Text).Width;
var tolerance = Common.ConvertPointsToPixelsFloat(dpi, _fitToPathTolerance);
if (textLength - pathLength > tolerance)
{
while (textLength - pathLength > tolerance)
{
Font.Size -= FitToPathStep;
font = CreateFont(graphics);
textLength = font.MeasureString(Text).Width;
}
}
else if (OriginalFontSize > 0 && OriginalFontSize > Font.Size)
{
while (pathLength - textLength > tolerance && OriginalFontSize > Font.Size)
{
Font.Size += FitToPathStep;
font = CreateFont(graphics);
textLength = font.MeasureString(Text).Width;
}
}
}
}