105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
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#include "coaldistributbarchartwidget.h"
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#include <QDateTimeAxis>
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#include <QList>
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#include <QRandomGenerator>
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#include <QScopedPointer>
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#include <QVBoxLayout>
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#include <QtCharts/QChart>
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#include <QBarSeries>
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#include <QBarSet>
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#include <QChart>
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#include <QChartView>
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#include <QDateTimeAxis>
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#include <QTimer>
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#include <QVBoxLayout>
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#include <memory>
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CoalDistributBarChartWidget::CoalDistributBarChartWidget(QWidget* parent)
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: QWidget(parent)
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{
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initializeChart();
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// setupTimer();
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}
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void CoalDistributBarChartWidget::updateChart()
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{
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double newValue = QRandomGenerator::global()->bounded(0, 99); // 随机生成0-900的Y值
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// 更新当前柱子的值
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QBarSet* currentBarSet = static_cast<QBarSet*>(m_series->barSets().at(currentIndex));
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currentBarSet->replace(0, newValue); // 更新当前柱子的值
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// 循环更新下一个柱子的索引
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currentIndex = (currentIndex + 1) % m_series->count(); // 循环到下一个柱子
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}
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void CoalDistributBarChartWidget::initializeChart()
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{
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// 创建图标
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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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// 创建窗口并设置图表
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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;"); // 使用样式表确保透明
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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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// 创建300个柱状集
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// for (int i = 0; i < 300; ++i) {
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// QBarSet* barSet = new QBarSet(QString::number(i)); // 使用柱子编号作为名称
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// barSet->append(0); // 初始化值为0
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// m_series->append(barSet);
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// }
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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); // 隐藏X轴刻度线
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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("占比(%)");
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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); // 设置标签字体颜色为灰色
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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)); // 设置标题字体
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axisY->setTitleVisible(true); // 确保标题可见
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QVBoxLayout* layout = new QVBoxLayout(this);
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layout->setContentsMargins(0, 0, 0, 0);
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layout->setSpacing(0); // 设置间距为0
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layout->addWidget(m_chartView);
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setLayout(layout);
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}
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void CoalDistributBarChartWidget::setupTimer()
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{
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// 定时器设置
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m_timer = new QTimer(this);
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connect(m_timer, &QTimer::timeout, this, &CoalDistributBarChartWidget::updateChart);
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m_timer->start(1000); // 每秒更新一次
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}
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