private string GetDocumentArea(string _text, Font _font) {
StringBuilder _doc = new StringBuilder();
// Append the standard RTF document area control string
_doc.Append(RTF_DOCUMENT_PRE);
// Set the highlight color (the color behind the text) to the
// third color in the color table. See GetColorTable for more details.
_doc.Append(@"\highlight2");
// If the font is bold, attach corresponding tag
if (_font.Bold)
_doc.Append(@"\b");
// If the font is italic, attach corresponding tag
if (_font.Italic)
_doc.Append(@"\i");
// If the font is strikeout, attach corresponding tag
if (_font.Strikeout)
_doc.Append(@"\strike");
// If the font is underlined, attach corresponding tag
if (_font.Underline)
_doc.Append(@"\ul");
// Set the font to the first font in the font table.
// See GetFontTable for more details.
_doc.Append(@"\f0");
// Set the size of the font. In RTF, font size is measured in
// half-points, so the font size is twice the value obtained from
// Font.SizeInPoints
_doc.Append(@"\fs");
_doc.Append((int)Math.Round((2 * _font.SizeInPoints)));
// Apppend a space before starting actual text (for clarity)
_doc.Append(@" ");
// Append actual text, however, replace newlines with RTF \par.
// Any other special text should be handled here (e.g.) tabs, etc.
_doc.Append(_text.Replace("\n", @"\par "));
// RTF isn't strict when it comes to closing control words, but what the
// heck ...
// Remove the highlight
_doc.Append(@"\highlight0");
// If font is bold, close tag
if (_font.Bold)
_doc.Append(@"\b0");
// If font is italic, close tag
if (_font.Italic)
_doc.Append(@"\i0");
// If font is strikeout, close tag
if (_font.Strikeout)
_doc.Append(@"\strike0");
// If font is underlined, cloes tag
if (_font.Underline)
_doc.Append(@"\ulnone");
// Revert back to default font and size
_doc.Append(@"\f0");
_doc.Append(@"\fs20");
// Close the document area control string
_doc.Append(RTF_DOCUMENT_POST);
return _doc.ToString();
}
