#include "ROICircle.h"
#include"Util.h"

ROICircle::ROICircle()
{
    //控制点2个
    numHandles = 2; // one at corner of circle + midpoint

    //默认控制点为圆心
    activeHandleIdx = 1;

    roiType = ROIType::Circle;
    row1 = 0;
    col1 = 0;
    midC = 0;
    midR = 0;
    radius = 0;
}

void ROICircle::createROI(double midX, double midY)
{
    //圆心为鼠标所在点
    midR = midY;
    midC = midX;
    //半径为100
    radius = 100;
    //圆上的点
    row1 = midR;
    col1 = midC + radius;
}

void ROICircle::drawROI(HTuple winID, double scaleFactor)
{
    //显示圆
    //DispCircle(winID, midR, midC, radius);
	HObject ho_ContCircle;
	GenCircleContourXld(&ho_ContCircle, midR, midC, radius, 0, 6.28318, "positive", 1);
	DispObj(ho_ContCircle, winID);
    double width=handleWidth;
    //显示两个控制框
    //DispRectangle2(winID, row1, col1, 0, width, width);
    //DispRectangle2(winID, midR, midC, 0, width, width);
	HObject ho_Rectangle1, ho_Rectangle2;
	GenRectangle2ContourXld(&ho_Rectangle1, row1, col1, 0, width / scaleFactor, width / scaleFactor);
	GenRectangle2ContourXld(&ho_Rectangle2, midR, midC, 0, width / scaleFactor, width / scaleFactor);
	DispObj(ho_Rectangle1, winID);
	DispObj(ho_Rectangle2, winID);
}

double ROICircle::distToClosestHandle(double x, double y)
{
    //ROI::distToClosestHandle(x, y);
    double max = 10000;
    double  val[2];

    val[0] = HMisc::DistancePp(y, x, row1, col1); // border handle
    val[1] = HMisc::DistancePp(y, x, midR, midC); // midpoint

    for (int i = 0; i < numHandles; i++)
    {
        if (val[i] < max)
        {
            max = val[i];
            activeHandleIdx = i;
        }
    }// end of for
    return val[activeHandleIdx];
}

void ROICircle::displayActive(HTuple winID, double scaleFactor)
{
    double width=handleWidth;
	HObject ho_Rectangle;
    // Util::notify(QString(GBK("结果:%1")).arg(width));
    switch (activeHandleIdx)
    {
    case 0://圆上的点
        //DispRectangle2(winID, row1, col1, 0, width, width);
		GenRectangle2ContourXld(&ho_Rectangle, row1, col1, 0, width / scaleFactor, width / scaleFactor);
		DispObj(ho_Rectangle, winID);
        break;
    case 1://圆心
        //DispRectangle2(winID, midR, midC, 0, width, width);
		GenRectangle2ContourXld(&ho_Rectangle, midR, midC, 0, width / scaleFactor, width / scaleFactor);
		DispObj(ho_Rectangle, winID);
        break;
    }
}

void ROICircle::moveByHandle(double newX, double newY)
{
    HTuple distance;
    double shiftX, shiftY;

    switch (activeHandleIdx)
    {
    case 0: // 鼠标在圆上的一点时

        row1 = newY;
        col1 = newX;
        distance = HMisc::DistancePp(row1, col1,
                                     midR, midC);

        radius = distance;
        break;
    case 1: // 鼠标在圆心上时

        shiftY = midR - newY;
        shiftX = midC - newX;

        midR = newY;
        midC = newX;

        row1 -= shiftY;
        col1 -= shiftX;
        break;
    }
}

QCursor ROICircle::showByHandle()
{
    QCursor cursor;
    switch (activeHandleIdx)
    {
    case 0: // 鼠标在圆上的一点时
        cursor= Qt::SizeBDiagCursor ;
        break;
    case 1: // 鼠标在圆心上时
        cursor= Qt::SizeAllCursor;
        break;
    }
    return cursor;
}

HRegion ROICircle::getRegion()
{
    HRegion region;
    region.GenCircle(midR, midC, radius);
    return region;
}

HTuple ROICircle::getROIData()
{
    HTuple dat;
    dat.Clear();
    dat[0] = midR;
    dat[1] = midC;
    dat[2] = radius;
    return dat;
}

void ROICircle::setROIData(HTuple dat)
{
    Q_UNUSED(dat);
}

void ROICircle::save(QDataStream &dataStream)
{
    ROI::save(dataStream);

	int paranum;//参数数量
	paranum = 6;
	dataStream << paranum;//先保存参数数量

	dataStream << (int)1 << radius;
	dataStream << (int)2 << row1;
	dataStream << (int)3 << col1;
	dataStream << (int)4 << midR;
	dataStream << (int)5 << midC;
	dataStream << (int)6 << m_strTitle;
}

void ROICircle::load(QDataStream &dataStream)
{
    ROI::load(dataStream);
	int paranum;//参数数量
	int para;
	dataStream >> paranum;//读取参数数量
	for (int i = 0; i < paranum; i++)
	{
		dataStream >> para;
		switch (para)
		{
		case 1:			  dataStream >> radius;					break;
		case 2:			  dataStream >> row1;					break;
		case 3:			  dataStream >> col1;					break;
		case 4:			  dataStream >> midR;					break;
		case 5:			  dataStream >> midC;					break;
		case 6:			  dataStream >> m_strTitle;				break;


		default:
		{
            qWarning () << "配置文档错误!";
		}
		break;
		}
	}
}