private GraphicsPath GetPath(ISvgRenderer renderer, string text, IList <RectangleF> ranges, bool measureSpaces)
{
EnsureDictionaries();
RectangleF bounds;
SvgGlyph glyph;
SvgKern kern;
GraphicsPath path;
SvgGlyph prevGlyph = null;
Matrix scaleMatrix;
float xPos = 0;
var ascent = Ascent(renderer);
var result = new GraphicsPath();
if (string.IsNullOrEmpty(text))
{
return(result);
}
for (int i = 0; i < text.Length; i++)
{
if (!_glyphs.TryGetValue(text.Substring(i, 1), out glyph))
{
glyph = _font.Descendants().OfType <SvgMissingGlyph>().First();
}
if (prevGlyph != null && _kerning.TryGetValue(prevGlyph.GlyphName + "|" + glyph.GlyphName, out kern))
{
xPos -= kern.Kerning * _emScale;
}
path = (GraphicsPath)glyph.Path(renderer).Clone();
scaleMatrix = new Matrix();
scaleMatrix.Scale(_emScale, -1 * _emScale, MatrixOrder.Append);
scaleMatrix.Translate(xPos, ascent, MatrixOrder.Append);
path.Transform(scaleMatrix);
scaleMatrix.Dispose();
bounds = path.GetBounds();
if (ranges != null)
{
if (measureSpaces && bounds == RectangleF.Empty)
{
ranges.Add(new RectangleF(xPos, 0, glyph.HorizAdvX * _emScale, ascent));
}
else
{
ranges.Add(bounds);
}
}
if (path.PointCount > 0)
{
result.AddPath(path, false);
}
xPos += glyph.HorizAdvX * _emScale;
prevGlyph = glyph;
}
return(result);
}