#include "live_effects/lpe-interpolate_points.h"

#include <2geom/path.h>

#include "live_effects/lpe-powerstroke-interpolators.h"

namespace Inkscape {

namespace LivePathEffect {

static const Util::EnumData<unsigned> InterpolatorTypeData[] = {

{Geom::Interpolate::INTERP_LINEAR , N_("Linear"), "Linear"},

{Geom::Interpolate::INTERP_CUBICBEZIER , N_("CubicBezierFit"), "CubicBezierFit"},

{Geom::Interpolate::INTERP_CUBICBEZIER_JOHAN , N_("CubicBezierJohan"), "CubicBezierJohan"},

{Geom::Interpolate::INTERP_SPIRO , N_("SpiroInterpolator"), "SpiroInterpolator"},

{Geom::Interpolate::INTERP_CENTRIPETAL_CATMULLROM, N_("Centripetal Catmull-Rom"), "CentripetalCatmullRom"}

};

static const Util::EnumDataConverter<unsigned> InterpolatorTypeConverter(InterpolatorTypeData, sizeof(InterpolatorTypeData)/sizeof(*InterpolatorTypeData));

LPEInterpolatePoints::LPEInterpolatePoints(LivePathEffectObject *lpeobject)

: Effect(lpeobject)

, interpolator_type(

_("Interpolator type:"),

_("Determines which kind of interpolator will be used to interpolate between stroke width along the path"),

"interpolator_type", InterpolatorTypeConverter, &wr, this, Geom::Interpolate::INTERP_CENTRIPETAL_CATMULLROM)

{

show_orig_path = false;

registerParameter( &interpolator_type );

}

LPEInterpolatePoints::~LPEInterpolatePoints()

{

}

Geom::PathVector

LPEInterpolatePoints::doEffect_path (Geom::PathVector const & path_in)

{

Geom::PathVector path_out;

std::auto_ptr<Geom::Interpolate::Interpolator> interpolator( Geom::Interpolate::Interpolator::create(static_cast<Geom::Interpolate::InterpolatorType>(interpolator_type.get_value())) );

for(Geom::PathVector::const_iterator path_it = path_in.begin(); path_it != path_in.end(); ++path_it) {

if (path_it->empty())

continue;

if (path_it->closed()) {

g_warning("Interpolate points LPE currently ignores whether path is closed or not.");

}

std::vector<Geom::Point> pts;

pts.push_back(path_it->initialPoint());

for (Geom::Path::const_iterator it = path_it->begin(), e = path_it->end_default(); it != e; ++it) {

pts.push_back((*it).finalPoint());

}

Geom::Path path = interpolator->interpolateToPath(pts);

path_out.push_back(path);

}

return path_out;

}

} //namespace LivePathEffect

} /* namespace Inkscape */