Qt 5.9 | Qt Charts | Model Data Example | tablewidget.cpp Example File

Qt 5.9.9 Reference Documentation

# tablewidget.cpp Example File

modeldata/tablewidget.cpp

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      #include "tablewidget.h"
      #include "customtablemodel.h"
      #include <QtWidgets/QGridLayout>
      #include <QtWidgets/QTableView>
      #include <QtCharts/QChart>
      #include <QtCharts/QChartView>
      #include <QtCharts/QLineSeries>
      #include <QtCharts/QVXYModelMapper>
      #include <QtWidgets/QHeaderView>

      QT_CHARTS_USE_NAMESPACE

      TableWidget::TableWidget(QWidget *parent)
          : QWidget(parent)
      {
          // create simple model for storing data
          // user's table data model
          CustomTableModel *model = new CustomTableModel;

          // create table view and add model to it
          QTableView *tableView = new QTableView;
          tableView->setModel(model);
          tableView->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
          tableView->verticalHeader()->setSectionResizeMode(QHeaderView::Stretch);

          QChart *chart = new QChart;
          chart->setAnimationOptions(QChart::AllAnimations);

          // series 1
          QLineSeries *series = new QLineSeries;
          series->setName("Line 1");
          QVXYModelMapper *mapper = new QVXYModelMapper(this);
          mapper->setXColumn(0);
          mapper->setYColumn(1);
          mapper->setSeries(series);
          mapper->setModel(model);
          chart->addSeries(series);

          // for storing color hex from the series
          QString seriesColorHex = "#000000";

          // get the color of the series and use it for showing the mapped area
          seriesColorHex = "#" + QString::number(series->pen().color().rgb(), 16).right(6).toUpper();
          model->addMapping(seriesColorHex, QRect(0, 0, 2, model->rowCount()));

          // series 2
          series = new QLineSeries;
          series->setName("Line 2");

          mapper = new QVXYModelMapper(this);
          mapper->setXColumn(2);
          mapper->setYColumn(3);
          mapper->setSeries(series);
          mapper->setModel(model);
          chart->addSeries(series);

          // get the color of the series and use it for showing the mapped area
          seriesColorHex = "#" + QString::number(series->pen().color().rgb(), 16).right(6).toUpper();
          model->addMapping(seriesColorHex, QRect(2, 0, 2, model->rowCount()));

          chart->createDefaultAxes();
          QChartView *chartView = new QChartView(chart);
          chartView->setRenderHint(QPainter::Antialiasing);
          chartView->setMinimumSize(640, 480);

          // create main layout
          QGridLayout *mainLayout = new QGridLayout;
          mainLayout->addWidget(tableView, 1, 0);
          mainLayout->addWidget(chartView, 1, 1);
          mainLayout->setColumnStretch(1, 1);
          mainLayout->setColumnStretch(0, 0);
          setLayout(mainLayout);
      }