#include "transparentdraggableGuan.h"


extern double g_dPixelPerCm;//每厘米像素数
//static GeoIndicatorGenerator m_drawGeo;

TransparentDraggableGuan::TransparentDraggableGuan(QMyCustomPlot *parentPlot,  QString strUuid, double minWidth, QString strTitle)
    : QObject(parentPlot), mPlot(parentPlot), /*mstrTitle(strTitle),*/ mMinWidth(minWidth)
{
    m_strUuid = strUuid;
    //
    initRect();
}

TransparentDraggableGuan::~TransparentDraggableGuan()
{
    if(mPlot) {
        //            mPlot->removeItem(mRect);
        //            mPlot->removeItem(mLeftHandle);
        //            mPlot->removeItem(mRightHandle);
    }
}


void TransparentDraggableGuan::DrawSVGNormal(QPainter* painter,QString svgFileName,QRectF borderRect,bool IsWellSectonHorizonLayout)
{
    QString svg=svgFileName;
    QRectF boundingRect = painter->transform().mapRect(borderRect);
    painter->save();
    QTransform transform;
    transform.reset();
    if (!IsWellSectonHorizonLayout)
    {
        painter->setWorldTransform(transform);
    }
    else
    {
    }
    QPixmap tiledmap(svg);
    QRect border(boundingRect.left(),boundingRect.top(),boundingRect.width(),boundingRect.height());
    painter->drawPixmap(border,tiledmap);
    painter->restore();
}
//拉伸
void TransparentDraggableGuan::DrawSVGSteched(QPainter* painter,QString svgFileName,QRectF borderRect,bool IsWellSectonHorizonLayout)
{
    QString svg=svgFileName;
    QSvgRenderer m_SvgRenderer;
    m_SvgRenderer.load(svg);
    m_SvgRenderer.render(painter,borderRect);
}
//平铺
void TransparentDraggableGuan::DrawSVGTiled(QPainter* painter,QString svgFileName,QRectF borderRect,bool IsWellSectonHorizonLayout)
{
    QString svg=svgFileName;
    QRectF boundingRect = painter->transform().mapRect(borderRect);
    painter->save();
    QTransform transform;
    transform.reset();
    if (!IsWellSectonHorizonLayout)
    {
        painter->setWorldTransform(transform);
    }
    else
    {
    }
    QPixmap tiledmap(svg);
    painter->drawTiledPixmap(boundingRect,tiledmap);
    painter->restore();
}



//设置最小宽度
void TransparentDraggableGuan::setMinWidth(double minWidth)
{
    mMinWidth = minWidth;
}

//设置外径长
void TransparentDraggableGuan::setOin(float in)
{
    mIn = in;
}

////设置标题
//void TransparentDraggableGuan::setTitle(QString strTitle)
//{
//    mstrTitle = strTitle;
//    mItemTitle->setText(mstrTitle);
//    //mPlot->replot();
//}

//设置解释结论
void TransparentDraggableGuan::setResult(QString filePath)
{
    m_Result = filePath;
    mPixmap->setPixmap(QPixmap(filePath)); // 设置图片
}

void TransparentDraggableGuan::drawResult(double left_Low, double right_Hight, double lY1, double lY2)
{
    if(m_Result=="")
    {
        return;
    }

    double x1 = mPlot->xAxis->coordToPixel(left_Low);
    double x2 = mPlot->xAxis->coordToPixel(right_Hight);
    double y1 = mPlot->yAxis->coordToPixel(lY1);
    double y2 = mPlot->yAxis->coordToPixel(lY2);

    //
    QString filePath = m_Result;
    //
    QString strLast = filePath.right(4);
    if(strLast.toLower()==".svg")
    {
        QString path,filename;
        GetWellNameAndPath(filePath, filename, path);
        QString basename = filename;

        QString val=filePath;
        QImage image(y2-y1, x1-x2,QImage::Format_RGB32);
        QPainter painter(&image);
        QRectF fillRect(0,0, y2-y1, x1-x2);
        painter.fillRect(fillRect,Qt::white);
        //拉伸
        DrawSVGSteched(&painter,filePath,fillRect,0);
        //平铺
        //DrawSVGTiled(&painter,filePath,fillRect,0);
        //正常
        //DrawSVGNormal(&painter,filePath,fillRect,0);

        val=GetImagePath()+"TempNew";
        QDir ss;
        if(!ss.exists(val)) {
            ss.mkdir(val);
        }
        val+=QDir::separator();
        val+=basename+".png";
        image.save(val);

        //
        mPixmap->setPixmap(QPixmap(val)); // 设置图片
    }
    else
    {
        mPixmap->setPixmap(QPixmap(filePath)); // 设置图片

//        QString path,filename;
//        GetWellNameAndPath(filePath, filename, path);
//        QString basename = filename;

//        QString val=filePath;
//        QImage image(y2-y1, x1-x2,QImage::Format_RGB32);
//        QPainter painter(&image);
//        QRectF fillRect(0,0, y2-y1, x1-x2);
//        painter.fillRect(fillRect,Qt::white);
//        //平铺
//        DrawSVGNormal(&painter,filePath,fillRect,0);

//        val=GetImagePath()+"TempNew";
//        QDir ss;
//        if(!ss.exists(val)) {
//            ss.mkdir(val);
//        }
//        val+=QDir::separator();
//        val+=basename+".png";
//        image.save(val);

//        //
//        mPixmap->setPixmap(QPixmap(val)); // 设置图片
    }

    //mPlot->replot();
}

// 设置矩形范围
void TransparentDraggableGuan::setRange(double left_Low, double right_Hight)
{
    if(left_Low >= right_Hight) return;

    double lY1 = mPlot->yAxis->range().lower;//+10
    double lY2 = mPlot->yAxis->range().upper;
    mRect->topLeft->setCoords(left_Low, lY1 + (lY2-lY1-mIn)/2.0);
    mRect->bottomRight->setCoords(right_Hight, lY2 - (lY2-lY1-mIn)/2.0);

    //位置与rect不一样，否则图像反转
    mPixmap->topLeft->setCoords(right_Hight, lY1 + (lY2-lY1-mIn)/2.0);
    mPixmap->bottomRight->setCoords(left_Low,  lY2 - (lY2-lY1-mIn)/2.0);
    //drawResult(left_Low, right_Hight, lY1, lY2);

    //mItemTitle->position->setCoords(0.5, 0.5);
    //  设置父锚点，定位点
    //mItemTitle->position->setParentAnchor(mRect->bottom);
//    mItemTitle->position->setCoords((mRect->topLeft->coords().x() + mRect->bottomRight->coords().x())/2,
//                                    (mRect->topLeft->coords().y() + mRect->bottomRight->coords().y())/2); // 设置文本在矩形中心位置

    //mRect->topLeft->setCoords(left, mPlot->yAxis->range().upper);
    //mRect->bottomRight->setCoords(right, mPlot->yAxis->range().lower);

    updateHandles();
    mPlot->replot();
}

// 获取当前范围
QCPRange TransparentDraggableGuan::getRange()
{
    return QCPRange(mRect->topLeft->coords().x(), mRect->bottomRight->coords().x());
}

// 设置矩形颜色
void TransparentDraggableGuan::setColor(const QColor &color)
{
    mRect->setBrush(QBrush(color));
    mRect->setPen(QPen(color.darker()));
    //mPlot->replot();
}

// 删除框图
void TransparentDraggableGuan::deleteRect()
{
    if(mPlot) {

        //            mRect->deleteLater();
        //            mLeftHandle->deleteLater();
        //            mRightHandle->deleteLater();
        //            mPixmap->deleteLater();

        mPlot->m_mapDraggable_Guan.remove(m_strUuid);

        mPlot->removeItem(mRect);
//        mPlot->removeItem(mLeftHandle);
//        mPlot->removeItem(mRightHandle);
        mPlot->removeItem(mPixmap);
//        mPlot->removeItem(mItemTitle);

        mPlot->replot();
        this->deleteLater();

        //
        //            //避免二次绘制框图
        //            mPlot->m_bDrawRect = false;
        //            mDragMode = DragNone;
        //            //取消选中框
        //            mPlot->selectionRect()->cancel();
        //            mPlot->replot();
        //            mPlot->selectionRect()->mActive=true;
    }
}


void TransparentDraggableGuan::initRect()
{
    // 创建透明矩形
    mRect = new QCPItemRect(mPlot);
    mRect->setLayer("overlay"); // 确保在最上层
    mRect->setBrush(QBrush(QColor(255, 255, 255, 50))); // 半透明蓝色
    mRect->setPen(QPen(QColor(70, 70, 255, 200)));

//    // 创建左右边界控制点
//    mLeftHandle = new QCPItemRect(mPlot);
//    mLeftHandle->setLayer("overlay");
//    mLeftHandle->setBrush(QBrush(Qt::red));
//    mLeftHandle->setPen(QPen(Qt::darkRed));

//    mRightHandle = new QCPItemRect(mPlot);
//    mRightHandle->setLayer("overlay");
//    mRightHandle->setBrush(QBrush(Qt::red));
//    mRightHandle->setPen(QPen(Qt::darkRed));

    // 设置初始位置
    //double center = mPlot->xAxis->range().center();
    //        setRange(center - 10, center + 10);

    // 连接鼠标事件
    connect(mPlot, &QCustomPlot::mousePress, this, &TransparentDraggableGuan::onMousePress);
    connect(mPlot, &QCustomPlot::mouseMove, this, &TransparentDraggableGuan::onMouseMove);
    connect(mPlot, &QCustomPlot::mouseRelease, this, &TransparentDraggableGuan::onMouseRelease);

    mPixmap = new QCPItemPixmap(mPlot);
    //mPixmap->setPixmap(QPixmap(":/image/file.png")); // 设置图片
    mPixmap->setScaled(true, Qt::IgnoreAspectRatio); // 设置缩放方式
    mPixmap->setLayer("overlay"); // 确保在最上层

//    mItemTitle = new QCPItemText(mPlot);
//    mItemTitle->setText(mstrTitle);
//    //mItemTitle->setBrush(QBrush(Qt::red));
//    mItemTitle->setFont(QFont("Arial", 12, QFont::Bold));
//    mItemTitle->setColor(Qt::black);
//    mItemTitle->setPositionAlignment(Qt::AlignTop | Qt::AlignHCenter);
//    mItemTitle->position->setType(QCPItemPosition::ptPlotCoords);
//    //mItemTitle->position->setType(QCPItemPosition::ptAxisRectRatio);
//    mItemTitle->position->setCoords(0.5, 0);
//    mItemTitle->setLayer("overlay");
}

void TransparentDraggableGuan::updateHandles()
{
    // 左边界矩形控制点
//    mLeftHandle->topLeft->setParentAnchor(mRect->topLeft);
//    mLeftHandle->bottomRight->setParentAnchor(mRect->topRight);//(mRect->bottomLeft);
//    mLeftHandle->topLeft->setCoords(-0.5, 0.5);      // 矩形大小
//    mLeftHandle->bottomRight->setCoords(0.5, -0.5);  // 矩形大小

//    // 右边界矩形控制点
//    mRightHandle->topLeft->setParentAnchor(mRect->bottomLeft);
//    mRightHandle->bottomRight->setParentAnchor(mRect->bottomRight);
//    mRightHandle->topLeft->setCoords(-0.5, 0.5);      // 矩形大小
//    mRightHandle->bottomRight->setCoords(0.5, -0.5);  // 矩形大小

}

void TransparentDraggableGuan::onDelRect()
{
    //mDragMode = DragNone;
    //删除框图
    deleteRect();
}


void TransparentDraggableGuan::onMousePress(QMouseEvent *event)
{
    if(event->button() != Qt::LeftButton)//右键
    {
        double y = mPlot->xAxis->pixelToCoord(event->pos().y());//x轴展示深度
        QCPRange currentRange = getRange();
//        if(mLeftHandle->selectTest(event->pos(), false) < 5) {
//            mDragMode = DragNone;
//        }
//        else if(mRightHandle->selectTest(event->pos(), false) < 5) {
//            mDragMode = DragNone;
//        }
        //else
        if(y >= currentRange.lower && y <= currentRange.upper) {
            mDragMode = DragNone;
        }
        else {
            mDragMode = DragNone;
            return;
        }

        //event->accept();

        QMenu menu(nullptr);
        QAction *delAction = menu.addAction("删除框图");
        //delAction->installEventFilter(this);
        connect(delAction, &QAction::triggered, this, &TransparentDraggableGuan::onDelRect);

        //            QAction* pItem = menu.exec(event->globalPos());
        //            if(pItem == delAction)
        //            {
        //                //event->accept();

        //                int ii=0;
        //                ii++;
        //            }
        menu.exec(event->globalPos());

        return;
    }

    event->accept();

    // 检查点击了哪个部分
    //double x = mPlot->xAxis->pixelToCoord(event->pos().x());
    //double y = mPlot->yAxis->pixelToCoord(event->pos().y());

    double y = mPlot->xAxis->pixelToCoord(event->pos().y());//x轴展示深度

    QCPRange currentRange = getRange();

//    if(mLeftHandle->selectTest(event->pos(), false) < 5) {
//        mDragMode = DragLeft;
//    }
//    else if(mRightHandle->selectTest(event->pos(), false) < 5) {
//        mDragMode = DragRight;
//    }
//    //else if(x >= currentRange.lower && x <= currentRange.upper) {
//    else
        if(y >= currentRange.lower && y <= currentRange.upper) {
        mDragMode = DragRect;
    }
    else {
        mDragMode = DragNone;
        return;
    }

    //mDragStartX = x;
    mDragStartY = y;
    mDragStartRange = currentRange;

}

void TransparentDraggableGuan::onMouseMove(QMouseEvent *event)
{
    if(mDragMode == DragNone) return;

    event->accept();

    //double x = mPlot->xAxis->pixelToCoord(event->pos().x());
    //double dx = x - mDragStartX;

    double y = mPlot->xAxis->pixelToCoord(event->pos().y());
    double dy = y - mDragStartY;

    QCPRange newRange = mDragStartRange;

    switch(mDragMode) {
//    case DragLeft: {
//        //double proposedLeft = mDragStartRange.lower + dx;
//        double proposedLeft = mDragStartRange.lower + dy;
//        // 确保不超出轴范围且不使宽度小于最小值
//        newRange.lower = qBound(
//            //mPlot->xAxis->range().lower,
//            getMyLower(),
//            proposedLeft,
//            mDragStartRange.upper - mMinWidth);
//        break;
//    }
//    case DragRight: {
//        //double proposedRight = mDragStartRange.upper + dx;
//        double proposedRight = mDragStartRange.upper + dy;
//        // 确保不超出轴范围且不使宽度小于最小值
//        newRange.upper = qBound(
//            mDragStartRange.lower + mMinWidth,
//            proposedRight,
//            getMyUpper());
//        //mPlot->xAxis->range().upper);
//        break;
//    }
    case DragRect: {
        double width = mDragStartRange.size();
        //double center = mDragStartRange.center() + dx;
        double center = mDragStartRange.center() + dy;
        newRange.lower = center - width/2;
        newRange.upper = center + width/2;

        // 检查是否超出轴范围
        if(newRange.lower < getMyLower()) {
            newRange.lower = getMyLower();
            newRange.upper = newRange.lower + width;
        }
        else if(newRange.upper > getMyUpper()) {
            newRange.upper = getMyUpper();
            newRange.lower = newRange.upper - width;
        }

        //            QCPRange axisRange = mPlot->xAxis->range();
        //            if(newRange.lower < axisRange.lower) {
        //                newRange.lower = axisRange.lower;
        //                newRange.upper = newRange.lower + width;
        //            }
        //            else if(newRange.upper > axisRange.upper) {
        //                newRange.upper = axisRange.upper;
        //                newRange.lower = newRange.upper - width;
        //            }
        break;
    }
    default:
        break;
    }

    //        //取整数(方便显示统计，左右边界整数显示。)
    //        newRange.lower = (int)newRange.lower;
    //        QCPRange rangeByFile = mPlot->xAxis->range();
    //        if (std::fabs(rangeByFile.upper - (int)newRange.upper) >= 1.0)
    //        {
    //            newRange.upper = (int)newRange.upper;
    //        }

    // 最终确保宽度不小于最小值（针对整体拖动的情况）
    if(newRange.size() < mMinWidth) {
        if(mDragMode == DragRect) {
            // 如果是整体拖动，保持中心点不变
            double center = newRange.center();
            newRange.lower = center - mMinWidth/2;
            newRange.upper = center + mMinWidth/2;
        } else {
            // 如果是边界拖动，强制设置最小宽度
//            if(mDragMode == DragLeft) {
//                newRange.lower = newRange.upper - mMinWidth;
//            } else if(mDragMode == DragRight) {
//                newRange.upper = newRange.lower + mMinWidth;
//            }
        }
    }

    setRange(newRange.lower, newRange.upper);

}

void TransparentDraggableGuan::onMouseRelease(QMouseEvent *event)
{
    if(event->button() == Qt::LeftButton && mDragMode != DragNone) {
        event->accept();
        //避免二次绘制框图
        mPlot->m_bDrawRect = false;
        //emit rangeChanged(getRange());
        mDragMode = DragNone;
        //取消选中状态
        //            QCPDataSelection emptySelection;
        //            mPlot->graph(0)->setSelection(emptySelection);
        //            mPlot->replot();

        //取消选中框
        mPlot->selectionRect()->cancel();
        mPlot->replot();
        mPlot->selectionRect()->mActive=true;
    }
}

double TransparentDraggableGuan::getMyLower()
{
    double dLower = mPlot->xAxis->range().lower;
//    double proposedLeft = mDragStartRange.lower;

//    TransparentDraggableGuan *pDraggableRect =NULL;
//    {
//        QMap<QString,QObject *>::Iterator it = mPlot->m_mapDraggable_Guan.begin();
//        while( it != mPlot->m_mapDraggable_Guan.end() )
//        {
//            if(it.key() == m_strUuid)
//            {
//                it++;
//                continue;
//            }
//            pDraggableRect = (TransparentDraggableGuan*)it.value();
//            //
//            QCPRange tmpRange = pDraggableRect->getRange();
//            if(tmpRange.upper >= dLower && tmpRange.upper <= proposedLeft)
//            {
//                dLower = tmpRange.upper;
//            }
//            it++;
//        }
//    }

    return dLower;
}

double TransparentDraggableGuan::getMyUpper()
{
    double dUpper = mPlot->xAxis->range().upper;
//    double proposedRight = mDragStartRange.upper;

//    TransparentDraggableGuan *pDraggableRect =NULL;
//    {
//        QMap<QString,QObject *>::Iterator it = mPlot->m_mapDraggable_Guan.begin();
//        while( it != mPlot->m_mapDraggable_Guan.end() )
//        {
//            if(it.key() == m_strUuid)
//            {
//                it++;
//                continue;
//            }
//            pDraggableRect = (TransparentDraggableGuan*)it.value();
//            //
//            QCPRange tmpRange = pDraggableRect->getRange();
//            if(tmpRange.lower <= dUpper && tmpRange.lower >= proposedRight)
//            {
//                dUpper = tmpRange.lower;
//            }
//            it++;
//        }
//    }

    return dUpper;
}