#include "mainwindow.h"
#include "ui_mainwindow.h"
#include<QDebug>
#include<QFile>

#include<QChart>
#include<QChartView>
#include<QLineSeries>
#include<QSplineSeries>
#include<QValueAxis>

#include<QScatterSeries>
#include<QRandomGenerator>

QT_CHARTS_USE_NAMESPACE;
MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    readText();
    //writeText();
    sourceScatterPlot();
    fieldCurveGraph();

}

 void MainWindow::readText()
 {
     QString displayString;
     QFile file("E:/qt/demo1/model.txt");
     if(!file.open(QIODevice::ReadOnly | QIODevice::Text))
     {
         qDebug()<<"Can't open the file!"<<endl;
     }
     while(!file.atEnd())
     {
         QByteArray line = file.readLine();
         QString str(line);
         displayString.append(str);
      }
      ui->textEdit->clear();
      ui->textEdit->setPlainText(displayString);
 }
 //绘制散点图
 void MainWindow::sourceScatterPlot()
 {
     ui->graphicsView_3->setRenderHint(QPainter::Antialiasing);                              // 设置抗锯齿
     ui->graphicsView_3->chart()->setTitle("散点图测试");                                      // 设置图表标题
     ui->graphicsView_3->chart()->setDropShadowEnabled(false);                               // 设置不启用背景阴影效果。
     ui->graphicsView_3->chart()->legend()->setMarkerShape(QLegend::MarkerShapeFromSeries);  // 在图例中显示点的形状样式
     ui->graphicsView_3->chart()->setTheme(QChart::ChartThemeBlueCerulean);                  // 设置表的样式

     QScatterSeries* series = new QScatterSeries();                 // 创建一个散点数据集对象
     series->setName("源位置");
     series->setMarkerShape(QScatterSeries::MarkerShapeCircle);  // 设置绘制的散点的样式为圆形
     series->setMarkerSize(10);                                     // 设置绘制的点的大小
     //测试数据
     for(int i = 0; i < 10; i++)    // 添加10个任意点
     {
       *series << QPointF(i, QRandomGenerator::global()->bounded(10, 40)); // 换一种添加数据的方式
     }
     ui->graphicsView_3->chart()->addSeries(series);       // 将创建的series添加经chart中
     ui->graphicsView_3->chart()->createDefaultAxes();     // 根据已有series生成对于类型的坐标轴，并将轴附着到所有的series
 }
 //绘制曲线图
 void MainWindow::fieldCurveGraph()
 {
     //绘制二维折线图
     //x坐标轴
     QValueAxis *m_pAxisX = new QValueAxis();
     m_pAxisX->setRange(0,10);
     m_pAxisX->setTitleText("t");
     //y坐标轴
     QValueAxis *m_pAxisY = new QValueAxis();
     m_pAxisY->setRange(0, 10);
     m_pAxisY->setTitleText("Ez");
     //创建曲线类
     QSplineSeries *m_pLineSeries = new QSplineSeries(); //创建折线绘制对象
     m_pLineSeries->append(0,0);
     m_pLineSeries->append(3,6);
     m_pLineSeries->append(6,3);
     m_pLineSeries->append(9,2);

     m_pLineSeries->setPointsVisible(true); //设置数据点可见
     m_pLineSeries->attachAxis(m_pAxisX); //X轴绑定
     m_pLineSeries->attachAxis(m_pAxisY); //Y轴绑定
     //创建QChart
     QChart *m_pChart = new QChart();
     m_pChart->addSeries(m_pLineSeries);
     m_pChart->addAxis(m_pAxisX, Qt::AlignBottom); //将X轴添加到图表上
     m_pChart->addAxis(m_pAxisY, Qt::AlignRight); //将Y轴添加到图表上

     m_pChart->setMargins(QMargins(0, 0, 0, 0));
     m_pChart->legend()->hide(); //隐藏图例
     //绑定chart控件
     ui->graphicsView->setChart(m_pChart);
     ui->graphicsView->setRenderHint(QPainter::Antialiasing);
     //ui->graphicsView->chart()->createDefaultAxes();

 }
// void MainWindow::writeText() //读写text文件
//{
//     QString strAll;
//         QStringList strList;
//         QFile readFile("E:/qt/demo1/model.txt");		//PATH是自定义读取文件的地址
//         if(readFile.open((QIODevice::ReadOnly|QIODevice::Text)))
//         {
//             //把文件所有信息读出来
//             QTextStream stream(&readFile);
//             strAll=stream.readAll();
//         }
//         readFile.close();


//         QFile writeFile("E:/qt/demo1/model.txt");	//PATH是自定义写文件的地址
//         if(writeFile.open(QIODevice::WriteOnly|QIODevice::Text))
//         {
//                 QTextStream stream(&writeFile);
//                 strList=strAll.split("\n");           //以换行符为基准分割文本
//                 for(int i=0;i<strList.count();i++)    //遍历每一行
//                 {
//                     if(strList.at(i).contains("123456789"))    //"123456789"是要修改的内容
//                     {
//                         QString tempStr=strList.at(i);
//                         tempStr.replace(0,tempStr.length(),"Hello!");   //"Hello!"是要替换的内容
//                         stream<<tempStr<<'\n';
//                     }
//                     //如果没有找到要替换的内容，照常写入
//                     else
//                     {
//                         if(i==strList.count()-1)
//                         {
//                            stream<<strList.at(i);
//                         }
//                         else
//                         {
//                            stream<<strList.at(i)<<'\n';
//                         }
//                     }
//                 }
//         }
//         writeFile.close();

//         ui->textEdit->clear();
//         ui->textEdit->setPlainText(strAll);

// }
MainWindow::~MainWindow()
{
    delete ui;
}