diff options
Diffstat (limited to 'src/livarot/PathCutting.cpp')
| -rw-r--r-- | src/livarot/PathCutting.cpp | 117 |
1 files changed, 116 insertions, 1 deletions
diff --git a/src/livarot/PathCutting.cpp b/src/livarot/PathCutting.cpp index 1ab2faf60..2c3240eba 100644 --- a/src/livarot/PathCutting.cpp +++ b/src/livarot/PathCutting.cpp @@ -24,8 +24,10 @@ #include "libnr/nr-point-matrix-ops.h" #include "libnr/nr-convert2geom.h" #include <2geom/pathvector.h> +#include <2geom/point.h> #include <2geom/matrix.h> #include <2geom/sbasis-to-bezier.h> +#include "../display/canvas-bpath.h" void Path::DashPolyline(float head,float tail,float body,int nbD,float *dashs,bool stPlain,float stOffset) { @@ -260,7 +262,6 @@ void Path::DashSubPath(int spL, int spP, std::vector<path_lineto> const &orig_pt } } } -#include "../display/canvas-bpath.h" void* Path::MakeArtBPath(void) { @@ -409,6 +410,120 @@ void* Path::MakeArtBPath(void) return bpath; } +Geom::PathVector * +Path::MakePathVector() +{ + Geom::PathVector *pv = new Geom::PathVector(); + Geom::Path * currentpath = NULL; + + NR::Point lastP,bezSt,bezEn; + int bezNb=0; + for (int i=0;i<int(descr_cmd.size());i++) { + int const typ = descr_cmd[i]->getType(); + switch ( typ ) { + case descr_close: + { + currentpath->close(true); + } + break; + + case descr_lineto: + { + PathDescrLineTo *nData = dynamic_cast<PathDescrLineTo *>(descr_cmd[i]); + currentpath->appendNew<Geom::LineSegment>(Geom::Point(nData->p[0], nData->p[1])); + lastP = nData->p; + } + break; + + case descr_moveto: + { + PathDescrMoveTo *nData = dynamic_cast<PathDescrMoveTo *>(descr_cmd[i]); + pv->push_back(Geom::Path()); + currentpath = &pv->back(); + currentpath->start(Geom::Point(nData->p[0], nData->p[1])); + lastP = nData->p; + } + break; + + case descr_arcto: + { + /* TODO: add testcase for this descr_arcto case */ + PathDescrArcTo *nData = dynamic_cast<PathDescrArcTo *>(descr_cmd[i]); + currentpath->appendNew<Geom::SVGEllipticalArc>( nData->rx, nData->ry, nData->angle, nData->large, nData->clockwise, to_2geom(nData->p) ); + lastP = nData->p; + } + break; + + case descr_cubicto: + { + PathDescrCubicTo *nData = dynamic_cast<PathDescrCubicTo *>(descr_cmd[i]); + gdouble x1=lastP[0]+0.333333*nData->start[0]; + gdouble y1=lastP[1]+0.333333*nData->start[1]; + gdouble x2=nData->p[0]-0.333333*nData->end[0]; + gdouble y2=nData->p[1]-0.333333*nData->end[1]; + gdouble x3=nData->p[0]; + gdouble y3=nData->p[1]; + currentpath->appendNew<Geom::CubicBezier>( Geom::Point(x1,y1) , Geom::Point(x2,y2) , Geom::Point(x3,y3) ); + lastP = nData->p; + } + break; + + case descr_bezierto: + { + PathDescrBezierTo *nData = dynamic_cast<PathDescrBezierTo *>(descr_cmd[i]); + if ( nData->nb <= 0 ) { + currentpath->appendNew<Geom::LineSegment>( Geom::Point(nData->p[0], nData->p[1]) ); + bezNb=0; + } else if ( nData->nb == 1 ){ + PathDescrIntermBezierTo *iData = dynamic_cast<PathDescrIntermBezierTo *>(descr_cmd[i+1]); + gdouble x1=0.333333*(lastP[0]+2*iData->p[0]); + gdouble y1=0.333333*(lastP[1]+2*iData->p[1]); + gdouble x2=0.333333*(nData->p[0]+2*iData->p[0]); + gdouble y2=0.333333*(nData->p[1]+2*iData->p[1]); + gdouble x3=nData->p[0]; + gdouble y3=nData->p[1]; + currentpath->appendNew<Geom::CubicBezier>( Geom::Point(x1,y1) , Geom::Point(x2,y2) , Geom::Point(x3,y3) ); + bezNb=0; + } else { + bezSt = 2*lastP-nData->p; + bezEn = nData->p; + bezNb = nData->nb; + } + lastP = nData->p; + } + break; + + case descr_interm_bezier: + { + if ( bezNb > 0 ) { + PathDescrIntermBezierTo *nData = dynamic_cast<PathDescrIntermBezierTo *>(descr_cmd[i]); + NR::Point p_m=nData->p,p_s=0.5*(bezSt+p_m),p_e; + if ( bezNb > 1 ) { + PathDescrIntermBezierTo *iData = dynamic_cast<PathDescrIntermBezierTo *>(descr_cmd[i+1]); + p_e=0.5*(p_m+iData->p); + } else { + p_e=bezEn; + } + + NR::Point cp1=0.333333*(p_s+2*p_m),cp2=0.333333*(2*p_m+p_e); + gdouble x1=cp1[0]; + gdouble y1=cp1[1]; + gdouble x2=cp2[0]; + gdouble y2=cp2[1]; + gdouble x3=p_e[0]; + gdouble y3=p_e[1]; + currentpath->appendNew<Geom::CubicBezier>( Geom::Point(x1,y1) , Geom::Point(x2,y2) , Geom::Point(x3,y3) ); + + bezNb--; + } + } + break; + } + } + + return pv; +} + void Path::AddCurve(Geom::Curve const &c) { if( dynamic_cast<Geom::LineSegment const*>(&c) || |