/// <summary>
/// Converts the text into bytes to be placed in the document.
/// The conversion is done according to the font and the encoding and the characters
/// used are stored.
/// </summary>
/// <param name="text">the text to convert</param>
/// <returns>the conversion</returns>
internal byte[] ConvertToBytes(string text)
{
byte[] b = null;
switch (_fontType)
{
case BaseFont.FONT_TYPE_T3:
return(_baseFont.ConvertToBytes(text));
case BaseFont.FONT_TYPE_T1:
case BaseFont.FONT_TYPE_TT:
{
b = _baseFont.ConvertToBytes(text);
int len = b.Length;
for (int k = 0; k < len; ++k)
{
_shortTag[b[k] & 0xff] = 1;
}
break;
}
case BaseFont.FONT_TYPE_CJK:
{
int len = text.Length;
for (int k = 0; k < len; ++k)
{
_cjkTag[_cjkFont.GetCidCode(text[k])] = 0;
}
b = _baseFont.ConvertToBytes(text);
break;
}
case BaseFont.FONT_TYPE_DOCUMENT:
{
b = _baseFont.ConvertToBytes(text);
break;
}
case BaseFont.FONT_TYPE_TTUNI:
{
int len = text.Length;
int[] metrics = null;
char[] glyph = new char[len];
int i = 0;
if (_symbolic)
{
b = PdfEncodings.ConvertToBytes(text, "symboltt");
len = b.Length;
for (int k = 0; k < len; ++k)
{
metrics = _ttu.GetMetricsTt(b[k] & 0xff);
if (metrics == null)
{
continue;
}
_longTag[metrics[0]] = new[] { metrics[0], metrics[1], _ttu.GetUnicodeDifferences(b[k] & 0xff) };
glyph[i++] = (char)metrics[0];
}
}
else
{
for (int k = 0; k < len; ++k)
{
int val;
if (Utilities.IsSurrogatePair(text, k))
{
val = Utilities.ConvertToUtf32(text, k);
k++;
}
else
{
val = text[k];
}
metrics = _ttu.GetMetricsTt(val);
if (metrics == null)
{
continue;
}
int m0 = metrics[0];
int gl = m0;
if (!_longTag.ContainsKey(gl))
{
_longTag[gl] = new[] { m0, metrics[1], val }
}
;
glyph[i++] = (char)m0;
}
}
string s = new string(glyph, 0, i);
b = PdfEncodings.ConvertToBytes(s, CjkFont.CJK_ENCODING);
break;
}
}
return(b);
}
