protected override void OnCurveToQuadratic(float x1, float y1, float x, float y, bool isRelative)
{
if (isRelative)
{
_writer.Curve3Rel(x1, y1, x, y);
}
else
{
_writer.Curve3(x1, y1, x, y);
}
}
FontGlyph CreateGlyphFromSVGGlyphData(string svgGlyphData)
{
FontGlyph newGlyph = new FontGlyph();
if (!GetIntValue(svgGlyphData, "horiz-adv-x", out newGlyph.horiz_adv_x))
{
newGlyph.horiz_adv_x = horiz_adv_x;
}
newGlyph.glyphName = GetStringValue(svgGlyphData, "glyph-name");
String unicodeString = GetStringValue(svgGlyphData, "unicode");
if (unicodeString != null)
{
if (unicodeString.Length == 1)
{
newGlyph.unicode = (int)unicodeString[0];
}
else
{
if (unicodeString.Split(';').Length > 1 && unicodeString.Split(';')[1].Length > 0)
{
throw new NotImplementedException("We do not currently support glyphs longer than one character. You need to wirite the seach so that it will find them if you want to support this");
}
if (int.TryParse(unicodeString, NumberStyles.Number, null, out newGlyph.unicode) == false)
{
// see if it is a unicode
String hexNumber = GetSubString(unicodeString, "&#x", ";");
int.TryParse(hexNumber, NumberStyles.HexNumber, null, out newGlyph.unicode);
}
}
}
String dString = GetStringValue(svgGlyphData, "d");
int parseIndex = 0;
int polyStartVertexSourceIndex = 0;
Vector2 lastXY = new Vector2(0, 0);
double px = 0;
double py = 0;
PathWriter gyphPath = new PathWriter();
newGlyph.originalVxs = gyphPath.Vxs;
if (dString == null || dString.Length == 0)
{
return(newGlyph);
}
while (parseIndex < dString.Length)
{
char command = dString[parseIndex];
switch (command)
{
case 'M':
{
parseIndex++;
// svg fonts are stored cw and agg expects its shapes to be ccw. cw shapes are holes.
// so we store the position of the start of this polygon so we can flip it when we colse it.
polyStartVertexSourceIndex = gyphPath.Count;
px = GetNextNumber(dString, ref parseIndex);
py = GetNextNumber(dString, ref parseIndex);
gyphPath.MoveTo(px, py);
}
break;
case 'v':
{
parseIndex++;
py = GetNextNumber(dString, ref parseIndex);
gyphPath.VerticalLineToRel(py);
}
break;
case 'V':
{
parseIndex++;
py = GetNextNumber(dString, ref parseIndex);
gyphPath.VerticalLineTo(py);
}
break;
case 'h':
{
parseIndex++;
px = GetNextNumber(dString, ref parseIndex);
gyphPath.HorizontalLineToRel(px);
}
break;
case 'H':
{
parseIndex++;
px = GetNextNumber(dString, ref parseIndex);
gyphPath.HorizontalLineTo(px);
}
break;
case 'l':
{
parseIndex++;
px = GetNextNumber(dString, ref parseIndex);
py = GetNextNumber(dString, ref parseIndex);
gyphPath.LineToRel(px, py);
}
break;
case 'L':
{
parseIndex++;
px = GetNextNumber(dString, ref parseIndex);
py = GetNextNumber(dString, ref parseIndex);
gyphPath.LineTo(px, py);
}
break;
case 'q':
{
//Curve3
parseIndex++;
double p2x = GetNextNumber(dString, ref parseIndex);
double p2y = GetNextNumber(dString, ref parseIndex);
px = GetNextNumber(dString, ref parseIndex);
py = GetNextNumber(dString, ref parseIndex);
gyphPath.Curve3Rel(p2x, p2y, px, py);
}
break;
case 'Q':
{ //Curve3
parseIndex++;
double p2x = GetNextNumber(dString, ref parseIndex);
double p2y = GetNextNumber(dString, ref parseIndex);
px = GetNextNumber(dString, ref parseIndex);
py = GetNextNumber(dString, ref parseIndex);
gyphPath.Curve3(p2x, p2y, px, py);
}
break;
case 't':
{
//svg smooth curve3
parseIndex++;
px = GetNextNumber(dString, ref parseIndex);
py = GetNextNumber(dString, ref parseIndex);
gyphPath.SmoothCurve3Rel(px, py);
}
break;
case 'T':
{
parseIndex++;
px = GetNextNumber(dString, ref parseIndex);
py = GetNextNumber(dString, ref parseIndex);
gyphPath.SmoothCurve3(px, py);
}
break;
case 'z':
case 'Z':
{
parseIndex++;
//curXY = lastXY; // value not used this is to remove an error.
//newGlyph.glyphData.ClosePathStorage();
gyphPath.CloseFigure();
// svg fonts are stored cw and agg expects its shapes to be ccw. cw shapes are holes.
// We stored the position of the start of this polygon, no we flip it as we close it.
//newGlyph.glyphData.InvertPolygon(polyStartVertexSourceIndex);
// VertexHelper.InvertPolygon(gyphPath.Vxs, polyStartVertexSourceIndex);
}
break;
case ' ':
case '\n': // some white space we need to skip
case '\r':
{
parseIndex++;
}
break;
default:
throw new NotImplementedException("unrecognized d command '" + command + "'.");
}
}
return(newGlyph);
}