#include "OneEyeMap.h"
#include "ui_oneeyemap.h"

#include <QApplication>
#include <QPainter>
#include <QPaintEvent>

#include "GlobalInfo.h"


OneEyeMap::OneEyeMap(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::OneEyeMap)
{
    ui->setupUi(this);
    m_logger = spdlog::get("EyeMap");
    if(m_logger == nullptr)
    {
        SPDLOG_ERROR("获取 EyeMap logger 失败");
        return;
    }
    /* 初始化变量，加载qss */
    // QFile fileQss(":/qss/OneEyeMap/OneEyeMap.qss");
    QFile fileQss(":/qss/OneEyeMap/OneEyeMap.qss");
    if(fileQss.open(QFile::ReadOnly))
    {
        QString qss = fileQss.readAll();
        this->setStyleSheet(qss);
        fileQss.close();
    } else
    {
        SPDLOG_LOGGER_ERROR(m_logger, "加载qss文件失败");
    }

    /* 自定义大小 */
    // setFixedSize(1600, 900);

    /* 设置水平刻度和垂直刻度数目 */
    m_hScaleNum = 6;
    m_vScaleNum = 4;

    /* 设置绘制区域 */
    m_leftMargin = 70;
    m_topMargin = 24;
    m_rightMargin = 24;
    m_bottomMargin = 24;
    /* 设置刻度区域 */
    m_rectScaleValue.setX(0);
    m_rectScaleValue.setY(ui->widget_title->height());
    m_rectScaleValue.setWidth(this->width());
    m_rectScaleValue.setHeight(this->height() - ui->widget_title->height());
    /* 设置眼图区域 */
    m_rectEyeMap.setX(m_leftMargin);
    m_rectEyeMap.setY(m_rectScaleValue.y() + m_topMargin);
    m_rectEyeMap.setWidth(m_rectScaleValue.width() - m_leftMargin - m_rightMargin);
    m_rectEyeMap.setHeight(m_rectScaleValue.height() - m_topMargin - m_bottomMargin);

    /* 初始化全局数据 */
    
    /* 设置定时器 */
    m_timer.setTimerType(Qt::PreciseTimer);
    m_timer.setSingleShot(false);
    // m_timer.start(16);      /* 16ms刷新一次，大约60帧 */

    connect(this, &OneEyeMap::signal_update, this, &OneEyeMap::do_update);
    connect(&m_timer, &QTimer::timeout, this, &OneEyeMap::do_update);

    SPDLOG_LOGGER_INFO(m_logger, "OneEyeMap 初始化成功");

}

OneEyeMap::~OneEyeMap()
{
    
    delete ui;
}

/* 根据通道号获取数据指针 */
void OneEyeMap::getEyeDataPtrFromOscData(int channel)
{
    m_eyeMapMatrix = OscDataInfo.findEyeMapMatrix(channel);
    if(m_eyeMapMatrix == nullptr)
    {
        SPDLOG_LOGGER_ERROR(m_logger, "获取颜色矩阵错误! 通道号: {}", channel);
        return;
    }
    m_eyeMapMatrix->initEyeMapData(this->width(), this->height());
}


/* 设置标题 */
void OneEyeMap::setTitle(const QString &title)
{
    m_info.title = title;
    ui->label_title->setText(title);
}

/* 设置颜色 */
void OneEyeMap::setTitleBarColor(const QColor &color)
{
    m_info.titleBarColor = color;
    // QString qss = QString("background-color: %1;border-radius: 4px;").arg(color.name());
    QString qss = QString("background-color: %1; border-top-left-radius: 4px; border-top-right-radius: 4px;").arg(color.name());
    ui->widget_title->setStyleSheet(qss);
}

/* 设置是否显示 */
void OneEyeMap::setShow(bool isShow)
{
    m_info.isShow = isShow;
    if(isShow)
    {
        this->show();
    } else
    {
        this->hide();
    }
}

/* 设置电压值 */
void OneEyeMap::setVoltageRange(OscVoltageRange range)
{
    m_info.voltageRange = range;
}

/* 更新组件信息 */
void OneEyeMap::updateInfo(const OneEyeMapInfo &info)
{
    // m_info = info;
    setTitle(info.title);
    setTitleBarColor(info.titleBarColor);
    setChannelInfo(info.channelInfo);
    setShow(info.isShow);
    setVoltageRange(info.voltageRange);
    setTimeGridValue(info.tGridValue);

    update();
}

/* 只更新设置个数页面的信息 */
void OneEyeMap::updateSettingNum(const OneEyeMapInfo &info)
{
    setTitle(info.title);
    setTitleBarColor(info.titleBarColor);
    setChannelInfo(info.channelInfo);
}

/* 刷新页面 */
void OneEyeMap::do_update()
{
    update();
}

/**
 * @brief 绘制图形
 * 
 * @param event 
 */
void OneEyeMap::paintEvent(QPaintEvent *event)
{
    m_eyeMapMatrix->mutexEyeData.lock();
    QPainter painter(this);
    
    painter.setRenderHint(QPainter::Antialiasing, true);
    
    /******************** 绘制标题背景 ********************/
    /* 标题栏的背景在setTitleBarColor函数中设置 */

    /******************** 绘制刻度值 ********************/
    drawScaleValue(painter);
    

    /******************** 绘制刻度网格 *********************/
    drawScale(painter);
    // SPDLOG_LOGGER_DEBUG(m_logger, "width = {}, height = {}", this->width(), this->height());
    // SPDLOG_LOGGER_DEBUG(m_logger, "m_rectScaleValue: x = {}, y = {}, width = {}, height = {}", m_rectScaleValue.x(), m_rectScaleValue.y(), m_rectScaleValue.width(), m_rectScaleValue.height());
    // SPDLOG_LOGGER_DEBUG(m_logger, "m_rectEyeMap: x = {}, y = {}, width = {}, height = {}", m_rectEyeMap.x(), m_rectEyeMap.y(), m_rectEyeMap.width(), m_rectEyeMap.height());
    /******************** 绘制眼图区域 ********************/
    drawEyeMap(painter);

    m_eyeMapMatrix->mutexEyeData.unlock();

    event->accept();
}

/* 缩放事件 */
void OneEyeMap::resizeEvent(QResizeEvent *event)
{
    /* 设置刻度区域 */
    m_rectScaleValue.setX(0);
    m_rectScaleValue.setY(ui->widget_title->height());
    m_rectScaleValue.setWidth(this->width());
    m_rectScaleValue.setHeight(this->height() - ui->widget_title->height());
    /* 设置眼图区域 */
    m_rectEyeMap.setX(m_leftMargin);
    m_rectEyeMap.setY(m_rectScaleValue.y() + m_topMargin);
    m_rectEyeMap.setWidth(m_rectScaleValue.width() - m_leftMargin - m_rightMargin);
    m_rectEyeMap.setHeight(m_rectScaleValue.height() - m_topMargin - m_bottomMargin);

    /* 刷新一下页面 */
    update();
    event->accept();
}

/* 绘制刻度区域 */
void OneEyeMap::drawScaleValue(QPainter &painter)
{
    /* 绘制背景颜色 */
    painter.setPen(Qt::NoPen);
    QBrush brush;
    brush.setColor("#1E1E1E");
    brush.setStyle(Qt::SolidPattern);
    painter.setBrush(brush);
    painter.drawRect(m_rectScaleValue);

    /* 绘制刻度值 */
    QPen pen;
    pen.setColor("#C8CCD2");
    painter.setPen(pen);
    QRect rectText(0, 0, 50, 14);
    QFont font;
    font.setFamily("思源黑体R");
    font.setPixelSize(14);
    painter.setFont(font);
    int oneScale = m_rectEyeMap.height() / m_vScaleNum;
    // SPDLOG_LOGGER_DEBUG(m_logger, "oneScale = {}", oneScale);
    /* 绘制电压值 */
    for(int i = 0; i <= m_vScaleNum; i++)
    {
        /* 计算字体区域坐标 */
        rectText.moveTo(10, m_rectEyeMap.y() + oneScale * i - 7);
        painter.drawText(rectText, Qt::AlignRight | Qt::AlignVCenter, getVScaleValue(i));
    }
    /* 绘制时间刻度值 */
    int oneTime = m_rectEyeMap.width() / m_hScaleNum;
    for(int i = 0; i <= m_hScaleNum; i++)
    {
        rectText.moveTo(m_rectEyeMap.x() + oneTime * i - 25, m_rectEyeMap.y() + m_rectEyeMap.height() + 4);
        painter.drawText(rectText, Qt::AlignCenter, getTimeValue(i));
    }

}

/* 绘制刻度 */
void OneEyeMap::drawScale(QPainter &painter)
{
    /* 限制操作区域，不过坐标零点依旧是widget的(0,0) */
    painter.setClipRect(m_rectEyeMap);
    /* 绘制背景颜色 */
    painter.setPen(Qt::NoPen);
    QBrush brush;
    brush.setColor(QColor(0, 0, 0, 0.8 * 255));
    brush.setStyle(Qt::SolidPattern);
    painter.setBrush(brush);
    painter.drawRect(m_rectEyeMap);
    /* 绘制刻度线 */
    QPen pen;
    pen.setWidth(1);
    pen.setStyle(Qt::SolidLine);
    /* 绘制中线 */
    int startX = m_rectEyeMap.x();
    int startY = m_rectEyeMap.y();
    int width = m_rectEyeMap.width();
    int height = m_rectEyeMap.height();
    pen.setColor(QColor(255, 255, 255, 0.35 * 255));
    pen.setWidth(2);
    painter.setPen(pen);
    painter.drawLine(startX, startY + (height / 2), startX + width, startY + (height / 2));     /* 绘制水平中线 */
    painter.drawLine(startX + (width / 2), startY, startX + (width / 2), startY + height);      /* 绘制垂直中线 */
    /* 绘制中线上的刻度 */
    int hScale = m_hScaleNum * 5;
    int vScale = m_vScaleNum * 5;
    double scaleW = width * 1.0 / hScale;
    double scaleH = height * 1.0 / vScale;
    QVector<QLineF> wLines;
    QVector<QLineF> hLines;
    for(int i = 0; i < hScale; i++)
    {
        QLineF line1(startX + i * scaleW, startY + height / 2.0 - 4, startX + i * scaleW, startY + height / 2.0 + 4);
        wLines.append(line1);
    }
    for(int i = 0; i < vScale; i++)
    {
        QLineF line2(startX + width / 2.0 - 4, startY + height - i * scaleH, startX + width / 2.0 + 4, startY + height - i * scaleH);
        hLines.append(line2);
    }
    painter.drawLines(wLines);
    painter.drawLines(hLines);

    /* 绘制网格，这里是网格线 */
    pen.setWidth(1);
    pen.setColor(QColor(255, 255, 255, 0.15 * 255));
    painter.setPen(pen);
    scaleH = height * 1.0 / m_vScaleNum;
    scaleW = width * 1.0 / m_hScaleNum;

    /* 水平线 */
    for(int i = 1; i < m_vScaleNum; i++)
    {
        int y = startY + i * scaleH;
        QLineF line1(startX, y, startX + width, y);
        painter.drawLine(line1);
    }
    /* 垂直线 */
    for(int i = 1; i < m_hScaleNum; i++)
    {
        int x = startX + i * scaleW;
        QLineF line1(x, startY, x, startY + height);
        painter.drawLine(line1);
    }

    /* 绘制虚线 */
    // painter.setPen(pen);
    // scaleW = width / 10.0;
    // scaleH = height / 10.0;
    // int x = 0;
    // int y = 0;
    // QVector<QLineF> wGridLines;
    // QVector<QLineF> hGridLines;
    // for(int i = 1; i < 10; i++)
    // {
    //     y = i * scaleH;
    //     while(true)
    //     {
    //         x = x + 8;
    //         QLineF line1(x, y, x + 2, y);
    //         wGridLines.append(line1);
    //         if(x >= width)
    //         {
    //             x = 0;
    //             y = 0;
    //             break;
    //         }
    //     }
    // }
    // x = 0;
    // y = 0;
    // for(int i = 1; i < 10; i++)
    // {
    //     x = i * scaleW;
    //     while(true)
    //     {
    //         y = y + 8;
    //         QLineF line1(x, y, x, y + 2);
    //         hGridLines.append(line1);
    //         if(y >= height)
    //         {
    //             x = 0;
    //             y = 0;
    //             break;
    //         }
    //     }
    // }
    // painter.drawLines(wGridLines);
    // painter.drawLines(hGridLines);
}

/* 绘制眼图区域 */
void OneEyeMap::drawEyeMap(QPainter &painter)
{
    /* 绘制眼图，就是绘制 1000 * 256 个矩形 */
    painter.setPen(Qt::NoPen);
    for(int i = 0; i < 1000; i++)
    {
        for(int j = 0; j < 256; j++)
        {
            if(m_eyeMapMatrix->dataMatrix[i][j].isDraw == false)
            {
                continue;
            }
            // painter.setBrush(QBrush(g_eyeMapMatrix.dataMatrix[i][j].color));
            painter.setBrush(m_eyeMapMatrix->dataMatrix[i][j].brush);
            painter.drawRect(m_eyeMapMatrix->dataMatrix[i][j].rect);
        }
    }
}

/* 获取一个格子的电压值 */
QString OneEyeMap::getVScaleValue(int index)
{
    index = 2 - index;
    if(m_info.voltageRange == OscVoltageRange::CR_100MV)
    {
        return QString::number(0.1 * index) + "V";
    } else if(m_info.voltageRange == OscVoltageRange::CR_250MV)
    {
        return QString::number(0.25 * index) + "V";
    } else if(m_info.voltageRange == OscVoltageRange::CR_500MV)
    {
        return QString::number(0.5 * index) + "V";
    } else if(m_info.voltageRange == OscVoltageRange::CR_1V)
    {
        return QString::number(1.0 * index) + "V";
    } else if(m_info.voltageRange == OscVoltageRange::CR_2V5)
    {
        return QString::number(2.5 * index) + "V";
    } else if(m_info.voltageRange == OscVoltageRange::CR_5V)
    {
        return QString::number(5.0 * index) + "V";
    } else if(m_info.voltageRange == OscVoltageRange::CR_8V)
    {
        return QString::number(8.0 * index) + "V";
    } else
    {
        return QString::number(0.1 * index) + "V";
    }
}

/* 获取一个时间值 */
QString OneEyeMap::getTimeValue(int index)
{
    QString str;
    switch (m_info.tGridValue)
    {
        case OscTimeGridValue::TGV_20NS:
            str = QString::number(index * 20 / 1000.0) + "us";
            break;
        case OscTimeGridValue::TGV_50NS:
            str = QString::number(index * 50 / 1000.0) + "us";
            break;
        case OscTimeGridValue::TGV_100NS:
            str = QString::number(index * 100 / 1000.0) + "us";
            break;
        case OscTimeGridValue::TGV_200NS:
            str = QString::number(index * 200 / 1000.0) + "us";
            break;
        case OscTimeGridValue::TGV_500NS:
            str = QString::number(index * 500 / 1000.0) + "us";
            break;
        case OscTimeGridValue::TGV_1US:
            str = QString::number(index * 1) + "us";
            break;
        case OscTimeGridValue::TGV_2US:
            str = QString::number(index * 2) + "us";
            break;
        case OscTimeGridValue::TGV_5US:
            str = QString::number(index * 5) + "us";
            break;
        case OscTimeGridValue::TGV_10US:
            str = QString::number(index * 10) + "us";
            break;
        case OscTimeGridValue::TGV_20US:
            str = QString::number(index * 20) + "us";
            break;
        case OscTimeGridValue::TGV_100US:
            str = QString::number(index * 100) + "us";
            break;
        default:
            str = "us";
            break;
    }
    return str;
}