public bool PrepareLetterDefinitions(string text)
{
List <char> newChars = new List <char>();
FindNewCharacters(text, ref newChars);
if (newChars.Count == 0)
{
return(false);
}
var newCharString = new string(newChars.ToArray());
var glyphs = _TextPaint.GetGlyphs(newCharString);
var glyphWidths = _TextPaint.GetGlyphWidths(newCharString);
for (int i = 0; i < glyphs.Length; i++)
{
FontLetterDefinition tempDef = new FontLetterDefinition();
if (glyphs[i] == 0)
{
_LetterDefinitions[newCharString[i]] = tempDef;
}
else
{
tempDef.ValidDefinition = true;
tempDef.AdvanceX = glyphWidths[i];
_LetterDefinitions[newCharString[i]] = tempDef;
}
}
return(true);
}
public bool GetLetterDefinitionForChar(char character, out FontLetterDefinition letterDefinition)
{
if (character == UnicodeCharacters.NoBreakSpace)
{
// change no-break space to regular space
// reason: some fonts have issue with no-break space:
// * no letter definition
// * not normal big width
character = UnicodeCharacters.Space;
}
if (_LetterDefinitions.TryGetValue(character, out letterDefinition))
{
return(letterDefinition.ValidDefinition);
}
return(false);
}
public void AddLetterDefinition(char character, FontLetterDefinition letterDefinition)
{
_LetterDefinitions[character] = letterDefinition;
}