#ifdef _DEBUG
#define _STLP_DEBUG 1
#endif
#include "ext/StraightCornerDeformation.h"
#include "ext/StrokeDeformation.h"
#include "ext/LinearPotential.h"
//#include "ext/StrokeParametricDeformer.h"
//#include "ext/NotSimmetricBezierPotential.h"
#include "ext/ContextStatus.h"
#include "ext/Designer.h"
//#include "ext/TriParam.h"
#include "ext/ExtUtil.h"

#include "DeformationSelector.h"

//#include <tcurves.h>
//#include <tstrokeutil.h>

#include <algorithm>
#include <iterator>
#include <vector>

#include <tstroke.h>

using namespace ToonzExt;

REGISTER(StraightCornerDeformation, 3);

//-----------------------------------------------------------------------------

StraightCornerDeformation::StraightCornerDeformation()
{
	setPotential(new LinearPotential);
	shortcutKey_ = ContextStatus::CTRL;
}

//-----------------------------------------------------------------------------

StraightCornerDeformation::~StraightCornerDeformation()
{
}

//-----------------------------------------------------------------------------

bool StraightCornerDeformation::findExtremes_(const ContextStatus *status,
											  Interval &ret)
{
	bool
		found = ToonzExt::findNearestStraightCorners(status->stroke2change_,
													 status->w_,
													 ret,
													 &this->getStraightsList());
	// it is not a forced solution
	if ((status->key_event_ != shortcutKey_) &&
		found)
		return found;
	else {
		// it is forced then probably i want to find
		found = ToonzExt::findNearestSpireCorners(status->stroke2change_,
												  status->w_,
												  ret,
												  status->cornerSize_,
												  &this->getSpiresList());
	}
	return found;
}

//-----------------------------------------------------------------------------

void StraightCornerDeformation::draw(Designer *designer)
{
	StrokeDeformationImpl::draw(0);
	designer->draw(this);
}

//-----------------------------------------------------------------------------

bool StraightCornerDeformation::check_(const ContextStatus *status)
{
	assert(status && "Not status available");

	TStroke *s = status->stroke2change_;
	double
		w = status->w_;

	// check extremes in another way.
	if (!s->isSelfLoop() &&
			areAlmostEqual(w, 0.0) ||
		areAlmostEqual(w, 1.0)) {
		return isAStraightCorner(s,
								 w,
								 &this->getStraightsList());
	}

	ToonzExt::Interval
		ret;
	if (ToonzExt::findNearestStraightCorners(status->stroke2change_,
											 status->w_,
											 ret,
											 &this->getStraightsList()) &&
		isAStraightCorner(s,
						  w,
						  &this->getStraightsList())) {
		if (ret.first > ret.second) {
			assert(s->isSelfLoop());
			if ((ret.first < w &&
				 w <= 1.0) ||
				(0.0 <= w &&
				 w < ret.second))
				return true;
		} else {
			if (ret.first < w &&
				w < ret.second)
				return true;
		}
	}
	return false;
}

//-----------------------------------------------------------------------------

double
StraightCornerDeformation::findActionLength()
{
	return stroke2manipulate_->getLength();
}

//-----------------------------------------------------------------------------

StraightCornerDeformation *
StraightCornerDeformation::instance()
{
	static StraightCornerDeformation singleton;
	return &singleton;
}

//-----------------------------------------------------------------------------
//  End Of File
//-----------------------------------------------------------------------------