PowerMaster/dataPanel/dpLineChart.cpp

#include "dpLineChart.h"

dpLineChart::dpLineChart(QWidget* parent)
    :dpBaseChart(parent)
{
    setAttribute(Qt::WA_TranslucentBackground,true);

    m_pCustomPlot = new QCustomPlot(this);
    initQCP();

    m_timeRange = 60 * 1000;

    QBoxLayout* mainLayout = new QBoxLayout(QBoxLayout::LeftToRight);
    mainLayout->setContentsMargins(0, 1, 0, 0);
    mainLayout->addWidget(m_pCustomPlot);
    setLayout(mainLayout);
}

dpLineChart::~dpLineChart()
{
}

void dpLineChart::initQCP()
{
    m_chartStyle.bgColor = Qt::transparent;
    m_chartStyle.axisColor = QColor(87, 100, 120);
    m_chartStyle.tickColor = QColor(87, 100, 120);
    m_chartStyle.tickLabelColor = QColor(250, 250, 250);
    m_chartStyle.tickLabelFont = QFont("黑体", 12);
    m_chartStyle.gridPen = QPen(QColor(87, 100, 120), 1, Qt::DotLine);

    //m_pCustomPlot->axisRect()->setupFullAxesBox();
    m_pCustomPlot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom);
    m_pCustomPlot->axisRect()->setRangeDrag(Qt::Horizontal); //只允许x轴方向的拖拽
    double zoomFactor = m_pCustomPlot->axisRect()->rangeZoomFactor(Qt::Horizontal);
    m_pCustomPlot->axisRect()->setRangeZoomFactor(zoomFactor, 1); //只做x轴的缩放
    m_pCustomPlot->xAxis->setSubTicks(false);
    m_pCustomPlot->xAxis2->setTicks(false);
    m_pCustomPlot->xAxis2->setSubTicks(false);
    m_pCustomPlot->yAxis->setSubTicks(false);
    //m_pCustomPlot->yAxis2->setTicks(false);
    m_pCustomPlot->yAxis2->setSubTicks(false);
    m_pCustomPlot->yAxis2->setVisible(true);
    connect(m_pCustomPlot->xAxis, qOverload<const QCPRange &>(&QCPAxis::rangeChanged), //rangeChanged有两个版本，qOverload可以指定版本
            this, &dpLineChart::onSignal_rangeChanged_xAxis);
    //背景颜色
    m_pCustomPlot->setBackground(QBrush(m_chartStyle.bgColor));
    //坐标轴颜色
    m_pCustomPlot->xAxis->setBasePen(m_chartStyle.axisColor);
    m_pCustomPlot->xAxis2->setBasePen(m_chartStyle.axisColor);
    m_pCustomPlot->yAxis->setBasePen(m_chartStyle.axisColor);
    m_pCustomPlot->yAxis2->setBasePen(m_chartStyle.axisColor);
    //坐标刻度颜色
    m_pCustomPlot->xAxis->setTickPen(QPen(m_chartStyle.tickColor));
    m_pCustomPlot->yAxis->setTickPen(QPen(m_chartStyle.tickColor));
    m_pCustomPlot->yAxis2->setTickPen(QPen(m_chartStyle.tickColor));
    //坐标刻度Label颜色
    m_pCustomPlot->xAxis->setTickLabelColor(m_chartStyle.tickLabelColor);
    m_pCustomPlot->xAxis->setTickLabelFont(m_chartStyle.tickLabelFont);
    m_pCustomPlot->yAxis->setTickLabelColor(m_chartStyle.tickLabelColor);
    m_pCustomPlot->yAxis->setTickLabelFont(m_chartStyle.tickLabelFont);
    m_pCustomPlot->yAxis2->setTickLabelColor(m_chartStyle.tickLabelColor);
    m_pCustomPlot->yAxis2->setTickLabelFont(m_chartStyle.tickLabelFont);
    //网格线颜色
    m_pCustomPlot->xAxis->grid()->setPen(m_chartStyle.gridPen);
    m_pCustomPlot->xAxis->grid()->setZeroLinePen(m_chartStyle.gridPen);
    //m_pCustomPlot->xAxis2->grid()->setPen(m_chartStyle.gridPen);
    m_pCustomPlot->yAxis->grid()->setPen(m_chartStyle.gridPen);
    m_pCustomPlot->yAxis->grid()->setZeroLinePen(m_chartStyle.gridPen);
    m_pCustomPlot->yAxis2->grid()->setPen(m_chartStyle.gridPen);
    //x轴用时间格式
    QSharedPointer<QCPAxisTickerDateTime> timeTicker(new QCPAxisTickerDateTime);
    timeTicker->setDateTimeFormat("hh:mm:ss:zzz\nyyyy/MM/dd");
    //qDebug() << timeTicker->dateTimeFormat();
    m_pCustomPlot->xAxis->setTicker(timeTicker);
    //qDebug() << m_pCustomPlot->xAxis->range();
}

void dpLineChart::setTimeRange(TimeUnit unit)
{
    switch(unit)
    {
    case TU_Year:
        m_timeRange = m_curDateTime.date().daysInYear() * 24 * 60 * 60 * (qint64)1000;
        break;
    case TU_Month:
        m_timeRange = m_curDateTime.date().daysInMonth() * 24 * 60 * 60 * (qint64)1000;
        break;
    case TU_Day:
        m_timeRange = 24 * 60 * 60 * 1000;
        break;
    case TU_Hour:
        m_timeRange = 60 * 60 *1000;
        break;
    case TU_Minute_30:
        m_timeRange = 30 * 60 *1000;
        break;
    case TU_Minute_20:
        m_timeRange = 20 * 60 *1000;
        break;
    case TU_Minute_15:
        m_timeRange = 15 * 60 *1000;
        break;
    case TU_Minute_10:
        m_timeRange = 10 * 60 *1000;
        break;
    case TU_Minute_5:
        m_timeRange = 5 * 60 *1000;
        break;
    case TU_Minute_3:
        m_timeRange = 3 * 60 *1000;
        break;
    case TU_Minute_1:
        m_timeRange = 60 * 1000;
        break;
    case TU_Second_30:
        m_timeRange = 30 * 1000;
        break;
    case TU_Second_10:
        m_timeRange = 10 * 1000;
        break;
    case TU_Second_1:
        m_timeRange = 1 * 1000;
        break;
    case TU_MSecond_500:
        m_timeRange = 500;
        break;
    case TU_MSecond_100:
        m_timeRange = 100;
        break;
    case TU_MSecond_50:
        m_timeRange = 50;
        break;
    case TU_MSecond_10:
        m_timeRange = 10;
        break;
    default:
        break;
    }
}

void dpLineChart::setDateTime(const QDateTime& dateTime)
{
    qint64 timeValue = dateTime.toMSecsSinceEpoch() / 1000.0;
    //qint64 timeValue = QCPAxisTickerDateTime::dateTimeToKey(dateTime);
    m_pCustomPlot->xAxis->setRange(timeValue, m_timeRange / 1000.0, Qt::AlignRight);
    m_pCustomPlot->replot();
    m_curDateTime = dateTime;
}

void dpLineChart::viewHistoricalData(const QDateTime& dateTime)
{

}

void dpLineChart::synchronizeConfigData(const configurationResults& cfg)
{
    //Y坐标轴的数量由数据类型决定

    //将最新配置信息中的坐标轴相关数据存储在QHash中，有助于更好的判断当前坐标轴是否需要发生同步更新
    QHash<RealTimeDataType, AxisConfig> axisCfgMap;
    for(int i = 0; i< cfg.m_pModel_dataType->rowCount(); i++)
    {
        AxisConfig axisConfig;
        //axisConfig.name = cfg.axisInfo.name;
        //axisConfig.unit = cfg.axisInfo.unit;
        RealTimeDataType dataType = (RealTimeDataType)cfg.m_pModel_dataType->item(i, 0)->data(Qt::UserRole + itemRole_dataType).toInt();
        axisConfig.dataType = dataType;
        axisCfgMap.insert(dataType, axisConfig);
    }

    //QHash::insert()的第二个参数接收的是副本(引起拷贝),所以采用指针可以减少拷贝从而提升效率
    QHash<RealTimeDataType, Axis*> axesMap;
    for(auto& axis : m_axes)
    {
        axesMap.insert(axis._cfg.dataType, &axis);
    }

    //删除轴
    for(int i = 0; i < m_axes.size();)
    {
        Axis& axis = m_axes[i];
        if(!axisCfgMap.contains(axis._cfg.dataType))
        {
            m_pCustomPlot->axisRect()->removeAxis(axis.qAxis);
            m_axes.remove(i); //QVector::remove()会调用存储对象的析构函数
        }
        else
            i++;
    }


}

void dpLineChart::onSignal_rangeChanged_xAxis(const QCPRange& range)
{
    // qDebug() << "m_timeRange: " << m_timeRange;
    // qDebug() << "range size: " << range.size();
    if(m_timeRange != range.size() * 1000)
        m_timeRange = range.size() * 1000;
}