public TextBlock (BitmapFont font, float width, string text) {
ThreadContext.Current.EnsureGLContext();
_font = font;
_width = width;
_text = text;
_color = Vector4.One;
_isDirty = true;
}
public TextRun (BitmapFont font, int start, float kerning, Vector4 color) {
this.Font = font;
this.Start = start;
_kerning = kerning;
_color = color;
_chars = new Stack<BitmapChar> ();
}
public TextRun (TextRun other, int start, BitmapFont font)
: this(font, start, other._kerning, other._color) {
}