internal void Lettering(List <Element> into, Element parent)
{
if (ChildNodes == null)
{
return;
}
int count = ChildNodes.Count;
for (int i = 0; i < count; i++)
{
// Grab the child node:
Element child = ChildNodes[i];
// Get the element type:
Type type = child.GetType();
if (type == typeof(TextElement))
{
// Apply to each word:
child.Lettering(into, parent);
}
else if (type == typeof(WordElement))
{
// Split the word into its chars:
WordElement word = (WordElement)child;
// Grab the text object:
TextRenderingProperty textProperty = word.Style.Computed.Text;
if (textProperty == null || textProperty.Text == null)
{
continue;
}
// Get the characters:
char[] characters = textProperty.Text.ToCharArray();
// How many chars?
int characterCount = characters.Length;
// Add each letter as a new element:
for (int c = 0; c < characterCount; c++)
{
// The character(s) as a string:
string charString;
// Grab the character:
char character = characters[c];
// Surrogate pair?
if (char.IsHighSurrogate(character) && c != characters.Length - 1)
{
// Low surrogate follows:
char lowChar = characters[c + 1];
c++;
// Get the charcode:
int code = char.ConvertToUtf32(character, lowChar);
// Turn it back into a string:
charString = char.ConvertFromUtf32(code);
}
else
{
charString = "" + character;
}
// Create a word ele:
WordElement result = new WordElement(Document, parent, charString);
// Add it:
into.Add(result);
}
}
else
{
// Direct add:
into.Add(child);
}
}
}
