bool ProcessSVG(string Name, Stream InputStream)
{
MemoryStream ms = new MemoryStream();
InputStream.CopyTo(ms);
byte[] data = ms.ToArray();
MemoryStream ms1 = new MemoryStream(data);
MemoryStream ms2 = new MemoryStream(data);
var xdoc = new System.Xml.Linq.XDocument();
xdoc = System.Xml.Linq.XDocument.Load(ms1);
var temp = xdoc.Descendants();
foreach (var t in temp)
{
switch (t.Name.LocalName.ToString())
{
case "g":
//Get and apply global transform
var gtransform = t.Attribute("transform");
if (gtransform != null)
{
GlobalTransform = SVGPath.BuildTransformMatrix(gtransform.Value);
}
else
{
GlobalTransform = SKMatrix.MakeIdentity();
}
Curves.Add(new Polycurve(Name));
break;
case "path":
//Get and apply local transformation
var ptransform = t.Attribute("transform");
if (ptransform != null)
{
LocalTransform = SVGPath.BuildTransformMatrix(ptransform.Value);
}
else
{
LocalTransform = SKMatrix.MakeIdentity();
}
var attribute = t.Attribute("d");
if (attribute != null)
{
ParsePath(Name, attribute.Value, _CTM);
}
break;
default:
break;
}
}
//Use SKSVG to get viewbox
SKSvg Imag = new SKSvg();
Imag.Load(ms2);
LastCurve.CanvasSize = Imag.ViewBox.Size;
LastCurve.Update();
mImageFunction(Name, LastCurve);
ms1.Dispose();
ms2.Dispose();
ms1 = null;
ms2 = null;
Imag = null;
return(true);
}
bool ParsePath(string Name, string Path, SKMatrix Transform)
{
var Commands = new List <SVGCommand>();
int curindex = 0;
string command = "";
foreach (var a in Path)
{
if ((ValidCommand(a) && curindex != 0))
{
if (command.Length > 0)
{
Commands.Add(new SVGCommand(command.TrimEnd()));
command = "";
}
else if (HasParameters(a))
{
throw new Exception("CRAP");
}
}
command += a;
curindex++;
if (Path.Length == curindex)
{
Commands.Add(new SVGCommand(command.TrimEnd()));
command = "";
}
}
LastPoint = new SKPoint(0, 0);
foreach (var cmd in Commands)
{
var key = cmd.GetCommand;
var pars = cmd.Parameters;
Char splitter = ' ';
var floatcommands = new List <List <float> >();
foreach (var par in pars)
{
var parts = par.Split(splitter);
var floatparts = new List <float>();
foreach (var fppart in parts)
{
floatparts.Add(float.Parse(fppart));
}
floatcommands.Add(floatparts);
}
//Key boat
List <float> param;
switch (key)
{
case 'm':
if ((param = cmd.GetParameterSet) != null)
{
var pt1 = Repoint(new SKPoint(param[0], param[1]), cmd.IsAbsolute);
LastCurve.AddStart(pt1);
}
//Process subsequent move commands they are treated identically
while ((param = cmd.GetParameterSet) != null)
{
var pt1 = Repoint(new SKPoint(param[0], param[1]), cmd.IsAbsolute);
LastCurve.AddLine(pt1);
}
LastCurve.Transformation = Transform;
break;
case 'z':
LastCurve.CloseCurve();
break;
case 'l':
//Process subsequent move commands they are treated identically
while ((param = cmd.GetParameterSet) != null)
{
var pt1 = Repoint(new SKPoint(param[0], param[1]), cmd.IsAbsolute);
LastCurve.AddLine(pt1);
}
break;
case 'h':
//var y = LastCurve.End.Y;
//Process subsequent move commands they are treated identically
while ((param = cmd.GetParameterSet) != null)
{
var pt1 = RepointX(param[0], cmd.IsAbsolute);
LastCurve.AddLine(pt1);
}
break;
case 'v':
//var x = LastCurve.End.X;
//Process subsequent move commands they are treated identically
while ((param = cmd.GetParameterSet) != null)
{
var pt1 = RepointY(param[0], cmd.IsAbsolute);
LastCurve.AddLine(pt1);
}
break;
case 'c':
//Process subsequent move commands they are treated identically
var ind = 0;
while ((param = cmd.GetParameterSet) != null)
{
var pt1 = RepointP(new SKPoint(param[ind++], param[ind++]), cmd.IsAbsolute);
var pt2 = RepointP(new SKPoint(param[ind++], param[ind++]), cmd.IsAbsolute);
var pt3 = Repoint(new SKPoint(param[ind++], param[ind++]), cmd.IsAbsolute);
LastCurve.AddCubic(pt1, pt2, pt3);
ind = 0;
}
break;
case 's':
break;
}
}
return(true);
}
