public override void Measure()
{
var writer = new SymbolWriter(font, MaxWidth, Scale);
var metrics = new PointF();
var paragraphs = Paragraph.Split(text);
foreach (var words in paragraphs.Select(paragrapgh => Word.Split(paragrapgh)))
{
foreach (var word in words.Where(word => word.Length != 0))
{
GetWordMetrics(word, metrics);
writer.AddSymbol(metrics.X, metrics.Y);
writer.AddSpace(SpaceSize);
}
writer.NewLine(0, font.LineHeight);
}
_Width = writer.Width;
_Height = writer.Height;
}
protected internal override void UpdateVertices()
{
if (text == null)
{
text = "";
}
Quads = Quad.CreateSet(text.Length);
RealLength = 0;
// This object controls lines breaking
var writer = new SymbolWriter(font, MaxWidth, Scale);
// Word Size
var metrics = new PointF();
var paragraphs = Paragraph.Split(text);
// Current character (used in masking)
var pos = 0;
foreach (var words in paragraphs.Select(paragraph => Word.Split(paragraph)))
{
foreach (var word in words.Where(word => word.Length != 0))
{
GetWordMetrics(word, metrics);
writer.AddSymbol(metrics.X, metrics.Y);
var length = word.Length;
var shift = 0f; // Position in pixels relative to the beginning of the word
for (var k = 0; k < length; k++)
{
var rect = ((TextureFilm)font).Get(word[k]);
var w = font.Width(rect);
var h = font.Height(rect);
if (Mask == null || Mask[pos])
{
Vertices[0] = writer.x + shift;
Vertices[1] = writer.y;
Vertices[2] = rect.Left;
Vertices[3] = rect.Top;
Vertices[4] = writer.x + shift + w;
Vertices[5] = writer.y;
Vertices[6] = rect.Right;
Vertices[7] = rect.Top;
Vertices[8] = writer.x + shift + w;
Vertices[9] = writer.y + h;
Vertices[10] = rect.Right;
Vertices[11] = rect.Bottom;
Vertices[12] = writer.x + shift;
Vertices[13] = writer.y + h;
Vertices[14] = rect.Left;
Vertices[15] = rect.Bottom;
Quads.Put(Vertices);
RealLength++;
}
shift += w + font.tracking;
pos++;
}
writer.AddSpace(SpaceSize);
}
writer.NewLine(0, font.LineHeight);
}
Dirty = false;
}
