#pragma once
#include <opencv2/opencv.hpp>

#ifdef _WIN32
#define EXPORT_API __declspec(dllexport)
#else
#define EXPORT_API
#endif

using namespace cv;

#define PI (3.14159265358979323846)
#define PI_DIV_180 (0.017453292519943296)//¦Ð/180
#define DegToRad(x) ((x)*PI_DIV_180)//½Ç¶Èת»»Îª»¡¶È


typedef struct MyPoint
{
    int x;
    int y;
}MyPoint;


typedef struct LesionSize
{
    MyPoint hl;
    MyPoint hr;
    MyPoint vu;
    MyPoint vd;
}LesionSize;


typedef struct MyRect
{
    int left;
    int right;
    int top;
    int bottom;
}MyRect;


typedef struct SelfCrossRegionDetails
{
    std::pair<int, int> eliminateStartIndexPair;
    std::pair<int, int> eliminateEndIndexPair;
}SelfCrossRegionDetails;


typedef struct InterecttionsDetails
{
    int indexInContour;
    double distanceToLineStart;
    double distanceToLineEnd;
}InterecttionsDetails;


typedef struct InterecttionsResults
{
    bool intersectWithLineStart;
    bool intersectWithLineEnd;
    int indexInContourIntersectionStart;
    int indexInContourIntersectionEnd;
}InterecttionsResults;



extern "C" EXPORT_API bool GetRotationTransMat(const MyPoint pointFix, const MyPoint pointMoveBef, const MyPoint pointMoveAft,double * rotMatDatas);
extern "C" EXPORT_API bool RotateAndScalePoints(double* rotMatDatas, const int pointNum, MyPoint * pointsBef, MyPoint * pointsAft);
extern "C" EXPORT_API bool RotatePoints(const MyPoint pointCenter, double angle, const int pointNum, MyPoint * pointsBef, MyPoint * pointsAft);
extern "C" EXPORT_API bool AngleBetweenTwoLine(const MyPoint pointOrigin, const MyPoint pointAnyDir,const MyPoint pointXDir,double& angle);
extern "C" EXPORT_API bool ContourArea(const MyPoint * points,const int pointNum, int& area);
extern "C" EXPORT_API bool GetContourPointByPoint(const MyPoint * pointsBef, const int pointNum, MyPoint * pointsAft, int& pointNumAft);
extern "C" EXPORT_API bool GetContourWithLineAA(const MyPoint * pointsBef, const int pointNum, MyPoint * pointsAft, int& pointNumAft);
extern "C" EXPORT_API bool GetContourPointByPointEliminateSelfCross(const MyPoint * pointsBef, const int pointNumBef, MyPoint * pointsAft, int& pointNumAft);
extern "C" EXPORT_API bool LineContourIntersection(const MyPoint * points, const int pointNum, const MyPoint lineStart, const MyPoint lineEnd,
    const int touchDistance, bool extended, InterecttionsResults& results);



MyRect ContourBoundBox(const MyPoint* points, const int pointNum);
double DistanceBetweenTwoPoints(const MyPoint pointOne, const MyPoint pointOther);
double DistanceBetweenTwoRect(const MyRect rectOne, const MyRect rectOther);
bool SortPointByDistanceIncrease(std::pair<double, MyPoint>a, std::pair<double, MyPoint>b);
bool SortIntersectionByDistanceToStartIncrease(InterecttionsDetails a, InterecttionsDetails b);
bool SortIntersectionByDistanceToEndIncrease(InterecttionsDetails a, InterecttionsDetails b);
bool AddPointsPixelByPixel(std::vector<MyPoint>& contours, MyPoint pointToAdd, MyPoint pointPre);
bool CheckIfContourSelfCrossed(std::vector<MyPoint> contours, int curIndex, int preStartCount,int& indexOfClosePoint);