#include #include #include #include #include #include "centralwidget.h" #include "filemanager.h" #include "peakpoint.h" #include "logger.h" CentralWidget::CentralWidget(QWidget *parent) : QWidget(parent), _customPlot(new QCustomPlot(this)) ,_nanlysisMode(AnalysisMode::None) { setMouseTracking(true); setStyleSheet("background-color: lightgray;"); resize(888, 666); QHBoxLayout *layout = new QHBoxLayout(); layout->setMargin(0); layout->addWidget(_customPlot); this->setLayout(layout); // 创建两条竖线 _line1 = new QCPItemStraightLine(_customPlot); _line1->point1->setCoords(20, _customPlot->yAxis->range().lower); _line1->point2->setCoords(20, _customPlot->yAxis->range().upper); _line1->setPen(QPen(Qt::red)); _line1->setSelectable(true); _line2 = new QCPItemStraightLine(_customPlot); _line2->point1->setCoords(40, _customPlot->yAxis->range().lower); _line2->point2->setCoords(40, _customPlot->yAxis->range().upper); _line2->setPen(QPen(Qt::red)); _line2->setSelectable(true); // 安装事件过滤器 _graph = _customPlot->addGraph(0); _eventHandler = new DragLineHandler(_customPlot, _line1, _line2, _graph, nullptr); _customPlot->installEventFilter(_eventHandler); connect(_eventHandler,&DragLineHandler::sigSendLineXCoord, this,&CentralWidget::sigSendLineXCoord); setEventHandlerEnable(false); // #if 0 // init data QVector x(101), y(101); for (int i = 0; i < 101; i++) { x[i] = i / 50.0 - 1;//设置x的范围为-1~1 y[i] = x[i] * x[i]; } _customPlot->graph(0)->setData(x, y); //设置坐标轴标签 _customPlot->xAxis->setLabel("x coordinates"); _customPlot->yAxis->setLabel("y coordinates"); //设置坐标轴范围,以便我们可以看到全部数据 _customPlot->xAxis->setRange(0, 1); _customPlot->yAxis->setRange(0, 100); _customPlot->replot(); #endif // startTimer(1000); } CentralWidget::~CentralWidget() { FileManager::close(); } void CentralWidget::setAnalysisMode(const CentralWidget::AnalysisMode mode) { #if 0 if(_nanlysisMode == mode){ return; }else{ _nanlysisMode = mode; } #endif _nanlysisMode = mode; switch (mode) { case AnalysisMode::NumericalLabel: case AnalysisMode::StartPoint: case AnalysisMode::StopPoint: case AnalysisMode::PeakSynthesisAnalysis: setEventHandlerEnable(true); break; default: break; } } void CentralWidget::slotModeModify(const Global::Mode mode) { if (Global::Mode::ExperimentStart == mode) { if (_customPlot->graphCount() > 0 && _graph) { // 清除第一个图表上的数据 _graph->setData(QVector(), QVector()); } // 创建画布,设置画布上的点数据 // _graph = _customPlot->addGraph(); // 设置坐标轴标签 _customPlot->xAxis->setLabel("Temp/℃"); _customPlot->yAxis->setLabel("DSC/mW"); // 设置坐标轴范围,以便我们可以看到全部数据 _customPlot->xAxis->setRange(0, 400); _customPlot->yAxis->setRange(-20, 20); } else if (Global::Mode::Analysis == mode) { qDebug() << "file close..."; FileManager::close(); } } void CentralWidget::slotRecvCommonData(const CommonData &cd) { qDebug() << "slotRevCommonData"; _customPlot->graph(0)->addData(cd.sample_temp, cd.dsc); // 添加数据到曲线 _customPlot->replot(); // FileManager::writeExperimentFile(cd); } void CentralWidget::slotRecvAnalysisFileName(const QString &fileName) { qDebug() << "slotRecvAnalysisFileName" << fileName; // QVector dataVtr; _dataVtr.clear(); FileManager::readExperimentFile(fileName, _dataVtr); if (_dataVtr.size() < 0) { return; } #if 0 //判断界面上是不是有曲线,有的话先删除。 _customPlot->clearGraphs(); // 创建画布,设置画布上的点数据 _customPlot->addGraph(); #endif PeakPoint::setExperimentData(_dataVtr); // 设置坐标轴标签 _customPlot->yAxis->setLabel("DSC/mW"); _customPlot->xAxis->setLabel("Temp/℃"); // 设置坐标轴范围,以便我们可以看到全部数据 _customPlot->xAxis->setRange(0, 400); _customPlot->yAxis->setRange(-20, 20); QVector xVtr, yVtr; for (FileManager::ExperimentData &ed : _dataVtr) { xVtr.push_back(ed.sampleTemp); yVtr.push_back(ed.dsc); } // 清除第一个图表上的数据 if (_customPlot->graphCount() > 0 && _graph) { // 清除第一个图表上的数据 _graph->setData(QVector(), QVector()); } _graph->addData(xVtr, yVtr); _customPlot->replot(); } void CentralWidget::slotAnalysisSettingApply() { switch (_nanlysisMode) { case AnalysisMode::NumericalLabel: { drawText(_line1->point1->coords(),"11111"); break; } case AnalysisMode::PeakSynthesisAnalysis: { double x1 = _line1->point1->coords().x(); double x2 = _line2->point1->coords().x(); fillGraph(x1,x2); PeakPoint::setRegionPointX(x1,x2); //enthalpy double enthalpyValue = PeakPoint::calculateArea(); //peak QPointF peakPoint = PeakPoint::findPeakPoint(); // qDebug()<<"peak point:"< startEndPointPair = PeakPoint::calculateStartAndEndPoint(); drawText(peakPoint,PeakPoint::textFormat(enthalpyValue, peakPoint.x(), startEndPointPair.first.x(), startEndPointPair.second.x())); // break; } default: break; } } void CentralWidget::slotAnalysisSettingConfirm() { } void CentralWidget::slotAnalysisSettingUndo() { } void CentralWidget::slotAnalysisSettingCancel() { } void CentralWidget::slotAnalysisSettingLineXPoint(const int index, const double) { } void CentralWidget::timerEvent(QTimerEvent *event) { // key的单位是秒 double key = QDateTime::currentDateTime().toMSecsSinceEpoch() / 1000.0; // 添加数据 // 使用随机数产生一条曲线 // double value0 = realDataI(); double value0 = QRandomGenerator::global()->bounded(10.123); _customPlot->graph(0)->addData(key, value0); // 添加数据到曲线 // 删除8秒之前的数据。这里的8要和下面设置横坐标宽度的8配合起来 // 才能起到想要的效果,可以调整这两个值,观察显示的效果。 _customPlot->graph(0)->data()->remove(key - 80); // 自动设定graph(1)曲线y轴的范围,如果不设定,有可能看不到图像 // 也可以用ui->customPlot->yAxis->setRange(up,low)手动设定y轴范围 _customPlot->graph(0)->rescaleValueAxis(true); // 这里的8,是指横坐标时间宽度为8秒,如果想要横坐标显示更多的时间 // 就把8调整为比较大到值,比如要显示60秒,那就改成60。 // 这时removeDataBefore(key-8)中的8也要改成60,否则曲线显示不完整。 _customPlot->yAxis->setRange(0, 20); // 设定x轴的范围 _customPlot->xAxis->setRange(key + 0.25, 80, Qt::AlignRight); // 设定x轴的范围 _customPlot->replot(); } void CentralWidget::contextMenuEvent(QContextMenuEvent *event) { qDebug()<<"left menu..."; QPoint point = event->globalPos(); emit sigContextMenuShow(point); } void CentralWidget::setEventHandlerEnable(const bool flag) { logde<<"setEventHandlerEnable..."<setEnable(flag); _line1->setVisible(flag); if(AnalysisMode::NumericalLabel != _nanlysisMode){ _line2->setVisible(flag); } _customPlot->replot(); } void CentralWidget::drawText(const QPointF point, const QString text) { // double y = PeakPoint::findClosestY(x); // 创建标注文字(QCPItemText) QCPItemText *textLabel = new QCPItemText(_customPlot); textLabel->setPositionAlignment(Qt::AlignBottom | Qt::AlignHCenter); // 对齐方式 textLabel->position->setType(QCPItemPosition::ptPlotCoords); // 使用数据坐标 textLabel->position->setCoords(point.x() + 20, point.y()); // 设置文本位置在指定点上方 textLabel->setText(text); // 设置文本内容 // textLabel->setFont(QFont("Arial", 10)); textLabel->setPen(QPen(Qt::lightGray)); // 文字边框 textLabel->setBrush(Qt::white); // 文字背景 // 创建指向点的线段(QCPItemLine) QCPItemLine *arrow = new QCPItemLine(_customPlot); arrow->start->setParentAnchor(textLabel->left); // 线段起点绑定到标注文字底部 arrow->end->setCoords(point.x(),point.y()); // 线段终点设置为指定的点 arrow->setHead(QCPLineEnding::esSpikeArrow); // 添加箭头 arrow->setPen(QPen(Qt::red, 1)); // 重绘图表以显示文本标签和箭头 _customPlot->replot(); #if 0 // 创建标注文字(QCPItemText) QCPItemText *textLabel = new QCPItemText(_customPlot); textLabel->setPositionAlignment(Qt::AlignBottom|Qt::AlignHCenter); // 对齐方式 textLabel->position->setType(QCPItemPosition::ptPlotCoords); // 使用数据坐标 textLabel->position->setCoords(x, _graph->data()->at(x)->value + 0.5); // 假设标注在 x=5 的点上方 textLabel->setText("标注文字"); textLabel->setFont(QFont("Arial", 10)); textLabel->setPen(QPen(Qt::black)); // 文字边框 textLabel->setBrush(Qt::white); // 文字背景 // 创建指向点的线段(QCPItemLine) QCPItemLine *arrow = new QCPItemLine(_customPlot); arrow->start->setParentAnchor(textLabel->bottom); // 线段起点绑定到标注文字底部 arrow->end->setCoords(x, _graph->data()->at(x)->value); // 线段终点绑定到数据点 arrow->setHead(QCPLineEnding::esSpikeArrow); // 添加箭头 arrow->setPen(QPen(Qt::red, 2)); #endif #if 0 if (!_graph || !_customPlot) { return; } // 创建标注文字(QCPItemText) QCPItemText *textLabel = new QCPItemText(_customPlot); textLabel->setPositionAlignment(Qt::AlignBottom|Qt::AlignHCenter); // 对齐方式 textLabel->position->setType(QCPItemPosition::ptPlotCoords); // 使用数据坐标 // 查找最接近 x 的数据点 auto it = _graph->data()->findBegin(x); if (it != _graph->data()->end()) { double y = it->value + 0.5; textLabel->position->setCoords(x, y); textLabel->setText(text); textLabel->setFont(QFont("Arial", 10)); textLabel->setPen(QPen(Qt::black)); // 文字边框 textLabel->setBrush(Qt::white); // 文字背景 // 创建指向点的线段(QCPItemLine) QCPItemLine *arrow = new QCPItemLine(_customPlot); arrow->start->setParentAnchor(textLabel->bottom); // 线段起点绑定到标注文字底部 arrow->end->setCoords(x, it->value); // 线段终点绑定到数据点 arrow->setHead(QCPLineEnding::esSpikeArrow); // 添加箭头 arrow->setPen(QPen(Qt::red, 2)); } #endif } #if 0 double CentralWidget::findClosestY(double targetX) { // 获取曲线数据容器 QSharedPointer> dataContainer = _graph->data(); // 初始化最小差值和对应的 y 值 double minDiff = std::numeric_limits::max(); double closestY = 0.0; // 遍历数据容器 for (int i = 0; i < dataContainer->size(); ++i) { double currentX = dataContainer->at(i)->key; double currentY = dataContainer->at(i)->value; // 计算当前 x 与目标 x 的差值的绝对值 double diff = std::abs(currentX - targetX); // 更新最小差值和对应的 y 值 if (diff < minDiff) { minDiff = diff; closestY = currentY; } } return closestY; } #endif void CentralWidget::fillGraph(const double x1, const double x2) { //todo.未寻找x1\x2之间最大值。 double y1 = PeakPoint::findClosestY(x1); double y2 = PeakPoint::findClosestY(x2); QVector xVtr,yVtr; xVtr.push_back(x1); xVtr.push_back(x2); yVtr.push_back(y1); yVtr.push_back(y2); QCPGraph *mainGraph = _customPlot->addGraph(); mainGraph->setData(xVtr, yVtr); // 样式配置 mainGraph->setPen(QPen(Qt::red, 1)); _graph->setBrush(QBrush(Qt::lightGray)); _graph->setChannelFillGraph(mainGraph); // customPlot->graph(0)->setChannelFillGraph(customPlot->graph(1)); // _customPlot->graph(1); _customPlot->replot(); } void CentralWidget::clearAllData() { #if 1 // Set lines visiable false. _line1->setVisible(false); _line2->setVisible(false); // Clear the data of graph. if (_customPlot->graphCount() > 0 && _graph) { _graph->setData(QVector(), QVector()); } _graph->setBrush(QBrush(Qt::transparent)); // Clear graph on plot. for (int i = _customPlot->graphCount() - 1; i >= 0; --i) { QCPGraph *graph = _customPlot->graph(i); if (graph != _graph) { _customPlot->removeGraph(graph); } } // Delete items. QList itemsToKeep; itemsToKeep << _line1 << _line2; for (int i = _customPlot->itemCount() - 1; i >= 0; --i) { QCPAbstractItem *item = _customPlot->item(i); if (!itemsToKeep.contains(item)) { _customPlot->removeItem(item); } } // 重绘图表以显示更改 _customPlot->replot(); #endif #if 0 // 删除不需要的 Item for (auto *item : itemsToRemove) { _customPlot->removeItem(item); delete item; } _customPlot->replot(); // if (_customPlot->graphCount() > 0 && _graph) { // 清除第一个图表上的数据 _graph->setData(QVector(), QVector()); } _customPlot->clearItems(); // 清除所有 QCPItem 对象 _customPlot->replot(); // 刷新显示 #endif #if 0 // 从后向前遍历更安全 for (int i = _customPlot->itemCount()-1; i >= 0; --i) { QCPItem* item = _customPlot->item(i); if (item != _line1 && item != _line2) { _customPlot->removeItem(item); delete item; } } _customPlot->replot(); #endif #if 0 // 遍历并删除所有图形元素,除了指定的元素 for (int i = _customPlot->itemCount() - 1; i >= 0; --i) { QCPAbstractItem *item = _customPlot->item(i); if (item != _line1 && item != _line2) { _customPlot->removeItem(item); } } // 遍历并删除所有绘图元素,除了指定的元素 for (int i = _customPlot->graphCount() - 1; i >= 0; --i) { QCPGraph *graph = _customPlot->graph(i); if (graph != _graph) { _customPlot->removeGraph(graph); } } // 遍历并删除所有文本元素 for (int i = _customPlot->textLayoutCount() - 1; i >= 0; --i) { QCPTextElement *textElement = _customPlot->textLayout(i); _customPlot->removeTextLayout(textElement); } #endif }