/// <exception cref="ArgumentNullException"><paramref name="text"/> is <see langword="null"/></exception>
internal Vector2 ProcessChars(string text, EachChar eachChar, Action newLineBegins)
{
if (text == null)
{
throw new ArgumentNullException(nameof(text));
}
var currentX = 0;
var currentY = 0;
var maxLineWidth = 0;
var maxCharHeight = LineSpacing;
char?previous = null;
foreach (var c in text)
{
if (c == '\r')
{
continue;
}
if (c == '\n')
{
currentX -= (int)Spacing;
maxLineWidth = Math.Max(maxLineWidth, currentX);
currentX = 0;
currentY += maxCharHeight;
maxCharHeight = LineSpacing;
newLineBegins?.Invoke();
continue;
}
var actual = c;
var charData = Characters.GetValue(actual);
if (charData == null)
{
if (!DefaultCharacter.HasValue)
{
throw new ArgumentException("Text contains characters that cannot be resolved by this font.",
nameof(text));
}
charData = Characters.GetValue(DefaultCharacter.Value);
actual = DefaultCharacter.Value;
}
var kerning = 0;
if (previous.HasValue)
{
kerning = GetKerning(previous.Value, c);
}
var position = new Vector2(currentX + charData.XOffset + kerning, currentY + charData.YOffset);
eachChar?.Invoke(actual, position, charData, previous);
previous = actual;
currentX += charData.XAdvance + kerning + (int)Spacing;
if (charData.Height > maxCharHeight)
{
maxCharHeight = charData.Height;
}
}
currentY += maxCharHeight;
return(new Vector2(Math.Max(maxLineWidth, currentX), currentY));
}
/// <exception cref="ArgumentNullException"><paramref name="text"/> is <see langword="null"/></exception>
internal Vector2 ProcessChars(string text, EachChar eachChar, Action newLineBegins)
{
if (text == null) {
throw new ArgumentNullException(nameof(text));
}
var currentX = 0;
var currentY = 0;
var maxLineWidth = 0;
var maxCharHeight = LineSpacing;
char? previous = null;
foreach (var c in text) {
if (c == '\r') {
continue;
}
if (c == '\n') {
currentX -= (int)Spacing;
maxLineWidth = Math.Max(maxLineWidth, currentX);
currentX = 0;
currentY += maxCharHeight;
maxCharHeight = LineSpacing;
newLineBegins?.Invoke();
continue;
}
var actual = c;
var charData = Characters.GetValue(actual);
if (charData == null) {
if (!DefaultCharacter.HasValue) {
throw new ArgumentException("Text contains characters that cannot be resolved by this font.",
nameof(text));
}
charData = Characters.GetValue(DefaultCharacter.Value);
actual = DefaultCharacter.Value;
}
var kerning = 0;
if (previous.HasValue) {
kerning = GetKerning(previous.Value, c);
}
var position = new Vector2(currentX + charData.XOffset + kerning, currentY + charData.YOffset);
eachChar?.Invoke(actual, position, charData, previous);
previous = actual;
currentX += charData.XAdvance + kerning + (int)Spacing;
if (charData.Height > maxCharHeight) {
maxCharHeight = charData.Height;
}
}
currentY += maxCharHeight;
return new Vector2(maxLineWidth, currentY);
}
