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

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

OneEyeMap::OneEyeMap(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::OneEyeMap)
{
    ui->setupUi(this);
    m_logger = spdlog::get("OSC");
    if(m_logger == nullptr)
    {
        SPDLOG_ERROR("获取 OSC 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);

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

    /* 初始化全局数据 */
    g_eyeMapMatrix.initEyeMapData(this->width(), this->height());
    /* 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120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;
}

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

/**
 * @brief 绘制图形
 * 
 * @param event 
 */
void OneEyeMap::paintEvent(QPaintEvent *event)
{
    g_eyeMapMatrix.mutexEyeData.lock();
    QPainter painter(this);
    
    painter.setRenderHint(QPainter::Antialiasing, true);
    
    /******************** 绘制标题背景 ********************/
    QBrush brush;
    brush.setStyle(Qt::SolidPattern);
    brush.setColor("#000000");
    painter.setBrush(brush);
    painter.drawRect(ui->widget_title->geometry());

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

    /******************** 绘制刻度网格 *********************/
    drawScale(painter);

    
    /* 绘制眼图，就是绘制 1000 * 256 个矩形 */
    // painter.setPen(QPen(Qt::NoPen));
    // for(int i = 0; i < 1000; i++)
    // {
    //     for(int j = 0; j < 256; j++)
    //     {
    //         if(g_eyeMapMatrix.dataMatrix[i][j].isDraw == false)
    //         {
    //             continue;
    //         }
    //         // painter.setBrush(QBrush(g_eyeMapMatrix.dataMatrix[i][j].color));
    //         painter.setBrush(g_eyeMapMatrix.dataMatrix[i][j].brush);
    //         painter.drawRect(g_eyeMapMatrix.dataMatrix[i][j].rect);
    //     }
    // }
    g_eyeMapMatrix.mutexEyeData.unlock();

    event->accept();
}

/* 缩放事件 */
void OneEyeMap::resizeEvent(QResizeEvent *event)
{
    /* 设置刻度区域 */
    m_rectScaleValue = QRect(0, ui->widget_title->height(), this->width(), this->height() - ui->widget_title->height());
    /* 设置眼图区域 */
    m_rectEyeMap.setLeft(m_leftMargin);
    m_rectEyeMap.setTop(ui->widget_title->height() + m_topMargin);
    m_rectEyeMap.setRight(m_rectScaleValue.width() - m_rightMargin);
    m_rectEyeMap.setBottom(m_rectScaleValue.height() - m_bottomMargin);
    event->accept();
}

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

/* 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 */
    QBrush brush;
    brush.setColor(QColor(0, 0, 0, 0.8 * 255));
    brush.setStyle(Qt::SolidPattern);
    painter.setBrush(brush);
    painter.drawRect(m_rectEyeMap);
    /* 绘制刻度值 */
    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 */
    double scaleW = width / 10.0;
    double scaleH = height / 5.0;
    QVector<QLineF> wLines;
    QVector<QLineF> hLines;
    for(int i = 0; i < 10; 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 < 5; 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，网格点之间的间距是固定的 */
    pen.setWidth(1);
    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)
{

}