GlyphBitmap GetGlyphBitmapFromBitmapFont(ushort glyphIndex)
{
//not found=> create a new one
if (_typeface.IsBitmapFont)
{
//try load
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
//load actual bitmap font
Glyph glyph = _typeface.GetGlyph(glyphIndex);
_typeface.ReadBitmapContent(glyph, ms);
using (MemBitmap memBitmap = MemBitmapExt.LoadBitmap(ms))
{
//bitmap that are load may be larger than we need
//so we need to scale it to specfic size
float target_advW = _typeface.GetAdvanceWidthFromGlyphIndex(glyphIndex) * _px_scale;
float scaleForBmp = target_advW / memBitmap.Width;
MemBitmap scaledMemBmp = memBitmap.ScaleImage(scaleForBmp, scaleForBmp);
var glyphBitmap = new GlyphBitmap
{
Width = scaledMemBmp.Width,
Height = scaledMemBmp.Height,
Bitmap = scaledMemBmp //**
};
return(glyphBitmap);
}
}
}
return(null);
}