DSCAnalysisTool/src/ui/centralwidget.cpp

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#include <QHBoxLayout>
#include <QRandomGenerator>
#include "centralwidget.h"
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#include "filemanager.h"
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CentralWidget::CentralWidget(QWidget *parent)
: QWidget(parent),
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_customPlot(new QCustomPlot(this))
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,_nanlysisMode(AnalysisMode::None)
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{
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setMouseTracking(true);
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setStyleSheet("background-color: lightgray;");
resize(888, 666);
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QHBoxLayout *layout = new QHBoxLayout();
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layout->setMargin(0);
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layout->addWidget(_customPlot);
this->setLayout(layout);
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// 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
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_graph = _customPlot->addGraph(0);
_eventHandler = new DragLineHandler(_customPlot, _line1, _line2, _graph, nullptr);
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_customPlot->installEventFilter(_eventHandler);
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connect(_eventHandler,&DragLineHandler::sigSendLineXCoord,
this,&CentralWidget::sigSendLineXCoord);
setEventHandlerEnable(false);
//
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#if 0
// init data
QVector<double> 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
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// startTimer(1000);
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}
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CentralWidget::~CentralWidget()
{
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FileManager::close();
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}
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void CentralWidget::setAnalysisMode(const CentralWidget::AnalysisMode mode)
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{
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if(_nanlysisMode == mode){
return;
}else{
_nanlysisMode = mode;
}
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switch (mode)
{
case AnalysisMode::NumericalLabel:
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case AnalysisMode::StartPoint:
case AnalysisMode::StopPoint:
case AnalysisMode::PeakSynthesisAnalysis:
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setEventHandlerEnable(true);
break;
default:
break;
}
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}
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void CentralWidget::slotModeModify(const Global::Mode mode)
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{
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if (Global::Mode::ExperimentStart == mode)
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{
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if (_customPlot->graphCount() > 0 && _graph)
{
// 清除第一个图表上的数据
_graph->setData(QVector<double>(), QVector<double>());
}
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// 创建画布,设置画布上的点数据
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// _graph = _customPlot->addGraph();
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// 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);
}
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else if (Global::Mode::Analysis == mode)
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{
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qDebug() << "file close...";
FileManager::close();
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}
}
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void CentralWidget::slotRecvCommonData(const CommonData &cd)
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{
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qDebug() << "slotRevCommonData";
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_customPlot->graph(0)->addData(cd.sample_temp, cd.dsc); // 添加数据到曲线
_customPlot->replot();
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//
FileManager::writeExperimentFile(cd);
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}
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void CentralWidget::slotRecvAnalysisFileName(const QString &fileName)
{
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qDebug() << "slotRecvAnalysisFileName" << fileName;
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QVector<FileManager::ExperimentData> dataVtr;
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FileManager::readExperimentFile(fileName, dataVtr);
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if (dataVtr.size() < 0)
{
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return;
}
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#if 0
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//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();
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#endif
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// 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);
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QVector<double> xVtr, yVtr;
for (FileManager::ExperimentData &ed : dataVtr)
{
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xVtr.push_back(ed.sampleTemp);
yVtr.push_back(ed.dsc);
}
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// 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<double>(), QVector<double>());
}
_graph->addData(xVtr, yVtr);
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_customPlot->replot();
}
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void CentralWidget::slotAnalysisSettingApply()
{
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double x = _line1->point1->coords().x();
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drawText(x,"11111");
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}
void CentralWidget::slotAnalysisSettingConfirm()
{
}
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void CentralWidget::slotAnalysisSettingUndo()
{
}
void CentralWidget::slotAnalysisSettingCancel()
{
}
void CentralWidget::slotAnalysisSettingLineXPoint(const int index, const double)
{
}
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void CentralWidget::timerEvent(QTimerEvent *event)
{
// key的单位是秒
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double key = QDateTime::currentDateTime().toMSecsSinceEpoch() / 1000.0;
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// 添加数据
// 使用随机数产生一条曲线
// double value0 = realDataI();
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double value0 = QRandomGenerator::global()->bounded(10.123);
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_customPlot->graph(0)->addData(key, value0); // 添加数据到曲线
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// 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。
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_customPlot->graph(0)->data()->remove(key - 80);
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// 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
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_customPlot->graph(0)->rescaleValueAxis(true);
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// 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。
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_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
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_customPlot->replot();
}
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void CentralWidget::contextMenuEvent(QContextMenuEvent *event)
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{
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qDebug()<<"left menu...";
QPoint point = event->globalPos();
emit sigContextMenuShow(point);
}
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void CentralWidget::setEventHandlerEnable(const bool flag)
{
_eventHandler->setEnable(flag);
_line1->setVisible(flag);
if(AnalysisMode::NumericalLabel != _nanlysisMode){
_line2->setVisible(flag);
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}
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_customPlot->replot();
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}
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void CentralWidget::drawText(const double x, const QString text)
{
#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 (!_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));
}
}