132 lines
4.1 KiB
C++
132 lines
4.1 KiB
C++
#include "coalstatisticschartwidget.h"
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#include "ui_coalstatisticschartwidget.h"
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#include <QJsonDocument>
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#include <QJsonObject>
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#include <QNetworkAccessManager>
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#include <QNetworkReply>
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#include <QNetworkRequest>
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#include <QUrl>
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#include <QUrlQuery>
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CoalStatisticsChartWidget::CoalStatisticsChartWidget(QWidget* parent)
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: QWidget(parent)
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, ui(new Ui::CoalStatisticsChartWidget)
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{
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ui->setupUi(this);
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initCoalStatisticsBarChart();
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getCoalStatisInfoByHttpRequest("2024-09-01 08", "2024-09-02 08");
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}
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CoalStatisticsChartWidget::~CoalStatisticsChartWidget()
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{
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delete ui;
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}
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void CoalStatisticsChartWidget::initCoalStatisticsBarChart()
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{
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// 创建图表
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m_chart = new QChart();
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m_chart->setBackgroundBrush(Qt::transparent);
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m_chart->setMargins(QMargins(0, 0, 0, 0));
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m_chart->legend()->hide();
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// 创建图表视图并设置
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m_chartView = new QChartView(m_chart);
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m_chartView->setBackgroundBrush(Qt::transparent);
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m_chartView->setStyleSheet("background: transparent;");
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m_chartView->setRenderHint(QPainter::Antialiasing);
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m_chartView->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
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// 创建柱状图
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m_series = new QBarSeries();
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m_chart->addSeries(m_series);
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// 设置X轴为时间
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QValueAxis* axisX = new QValueAxis;
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axisX->setRange(1, 300);
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axisX->setTickCount(10);
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axisX->setLabelFormat("%d");
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axisX->setLinePen(QPen(Qt::gray));
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axisX->setLabelsColor(Qt::gray);
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axisX->setMinorTickCount(0);
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m_chart->addAxis(axisX, Qt::AlignBottom);
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m_series->attachAxis(axisX);
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// 设置Y轴为百分比
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QValueAxis* axisY = new QValueAxis;
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axisY->setTitleText("吨");
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axisY->setTitleBrush(QBrush(Qt::gray));
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axisY->setLinePen(QPen(Qt::gray));
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axisY->setLabelsColor(Qt::gray);
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axisY->setRange(0, 100);
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m_chart->addAxis(axisY, Qt::AlignLeft);
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m_series->attachAxis(axisY);
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// 设置Y轴标题位置
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axisY->setTitleFont(QFont("Arial", 10));
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axisY->setTitleVisible(true);
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// 获取 widget_coalChart 的布局
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QVBoxLayout* layout = static_cast<QVBoxLayout*>(ui->widget_coalChart->layout());
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if (!layout) {
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// 如果没有布局，创建一个新的布局并设置
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layout = new QVBoxLayout(ui->widget_coalChart);
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ui->widget_coalChart->setLayout(layout);
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}
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// 设置布局参数
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layout->setContentsMargins(0, 0, 0, 0);
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layout->setSpacing(0);
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// 确保视图只添加一次
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if (!layout->indexOf(m_chartView) != -1) {
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layout->addWidget(m_chartView);
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}
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}
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void CoalStatisticsChartWidget::getCoalStatisInfoByHttpRequest(const QString& beginTime, const QString& endTime)
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{
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QNetworkAccessManager* manager = new QNetworkAccessManager();
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// URL
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QUrl url("http://192.168.5.205:5002/api/get/coal/statistics/value/");
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QNetworkRequest request(url);
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// Form data
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QUrlQuery params;
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params.addQueryItem("begin_time", beginTime);
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params.addQueryItem("end_time", endTime);
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// 设置请求头
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request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
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// 发送 POST 请求
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QNetworkReply* reply = manager->post(request, params.query(QUrl::FullyEncoded).toUtf8());
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// 连接信号和槽
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QObject::connect(reply, &QNetworkReply::finished, [reply]() {
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if (reply->error() == QNetworkReply::NoError) {
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// 处理成功的响应
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QByteArray responseData = reply->readAll();
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QJsonDocument jsonResponse = QJsonDocument::fromJson(responseData);
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QJsonObject jsonObj = jsonResponse.object();
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int code = jsonObj["code"].toInt();
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QString message = jsonObj["message"].toString();
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QJsonObject data = jsonObj["data"].toObject();
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double totalVolume = data["total_volume"].toDouble();
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qDebug() << "Code:" << code;
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qDebug() << "Message:" << message;
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qDebug() << "Total Volume:" << totalVolume;
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} else {
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// 处理错误
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qDebug() << "Error:" << reply->errorString();
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}
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reply->deleteLater();
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});
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}
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