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Starting App from other class

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  • J jsulm
    25 May 2020, 11:34

    @HenrikSt-0 Via copy/paste. Add new class GraphDataGenerator to your project and copy the code from example into it. Then copy the code from main in the example into your main...

    ? Offline
    ? Offline
    A Former User
    wrote on 25 May 2020, 11:42 last edited by
    #6

    @jsulm Oh sorry, I did not explained correctly...
    The code above is in a .cpp file.

    And the function, where I want to start the "application in the .cpp file" is

    void MainWindow::GraphicalDiagramm()
    {
        //Start application from .cpp file here...
     }
    

    Do you understand?

    J 1 Reply Last reply 25 May 2020, 11:46
    0
    • ? A Former User
      25 May 2020, 11:42

      @jsulm Oh sorry, I did not explained correctly...
      The code above is in a .cpp file.

      And the function, where I want to start the "application in the .cpp file" is

      void MainWindow::GraphicalDiagramm()
      {
          //Start application from .cpp file here...
       }
      

      Do you understand?

      J Offline
      J Offline
      jsulm
      Lifetime Qt Champion
      wrote on 25 May 2020, 11:46 last edited by
      #7

      @HenrikSt-0 said in Starting App from other class:

      Do you understand?

      No, because I don't know what "Start application" means here. Usually that would mean to start an external executable in its own process. @SGaist already asked you about that.
      If you mean executing the code in MainWindow::GraphicalDiagramm() nothing stops you from putting the code from the main of that example (except the QApplication stuff ofcourse) into MainWindow::GraphicalDiagramm().

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0
      • ? Offline
        ? Offline
        A Former User
        wrote on 25 May 2020, 11:53 last edited by
        #8

        This is my function, and I copied the mainfunction into it:

        void MainWindow::GrafischesDiagramm()
        {
            //! [0]
           // QApplication app(argc, argv);
            Q3DBars *graph = new Q3DBars();
            QWidget *container = QWidget::createWindowContainer(graph);
            //! [0]
        
            if (!graph->hasContext()) {
                QMessageBox msgBox;
                msgBox.setText("Couldn't initialize the OpenGL context.");
                msgBox.exec();
               // return -1;
            }
        
            QSize screenSize = graph->screen()->size();
            container->setMinimumSize(QSize(screenSize.width() / 2, screenSize.height() / 2));
            container->setMaximumSize(screenSize);
            container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
            container->setFocusPolicy(Qt::StrongFocus);
        
            //! [1]
            QWidget widget;
            QVBoxLayout *layout = new QVBoxLayout(&widget);
            QTableWidget *tableWidget = new QTableWidget(&widget);
            layout->addWidget(container, 1);
            layout->addWidget(tableWidget, 1, Qt::AlignHCenter);
            //! [1]
        
            tableWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
            tableWidget->setAlternatingRowColors(true);
            widget.setWindowTitle(QStringLiteral("Hours spent on the Internet"));
        
            //! [2]
            // Since we are dealing with QTableWidget, the model will already have data sorted properly
            // into rows and columns, so we simply set useModelCategories property to true to utilize this.
            QItemModelBarDataProxy *proxy = new QItemModelBarDataProxy(tableWidget->model());
            proxy->setUseModelCategories(true);
            QBar3DSeries *series = new QBar3DSeries(proxy);
            series->setMesh(QAbstract3DSeries::MeshPyramid);
            graph->addSeries(series);
            //! [2]
        
            //! [3]
            GraphDataGenerator generator(graph, tableWidget);
            QObject::connect(series, &QBar3DSeries::selectedBarChanged, &generator,
                             &GraphDataGenerator::selectFromTable);
            QObject::connect(tableWidget, &QTableWidget::currentCellChanged, &generator,
                             &GraphDataGenerator::selectedFromTable);
            //! [3]
        
            //! [4]
            widget.show();
            generator.start();
            //return app.exec();
        }
        
        

        And this is outside of the mainwindow class:

        //Grafisches Diagramm
        #include <QtDataVisualization/q3dbars.h>
        #include <QtDataVisualization/qcategory3daxis.h>
        #include <QtDataVisualization/qitemmodelbardataproxy.h>
        #include <QtDataVisualization/qvalue3daxis.h>
        #include <QtDataVisualization/q3dscene.h>
        #include <QtDataVisualization/q3dcamera.h>
        #include <QtDataVisualization/qbar3dseries.h>
        #include <QtDataVisualization/q3dtheme.h>
        
        
        #include <QtWidgets/QApplication>
        #include <QtWidgets/QVBoxLayout>
        #include <QtWidgets/QTableWidget>
        #include <QtGui/QScreen>
        #include <QtCore/QRandomGenerator>
        #include <QtCore/QTimer>
        #include <QtGui/QFont>
        #include <QtCore/QDebug>
        #include <QtWidgets/QHeaderView>
        #include <QtWidgets/QMessageBox>
        
        #define USE_STATIC_DATA
        
        using namespace QtDataVisualization;
        
        class GraphDataGenerator : public QObject
        {
        public:
            explicit GraphDataGenerator(Q3DBars *bargraph, QTableWidget *tableWidget);
            ~GraphDataGenerator();
        
            void setupModel();
            void addRow();
            void changeStyle();
            void changePresetCamera();
            void changeTheme();
            void start();
            void selectFromTable(const QPoint &selection);
            void selectedFromTable(int currentRow, int currentColumn, int previousRow, int previousColumn);
            void fixTableSize();
        
        private:
            Q3DBars *m_graph;
            QTimer *m_dataTimer;
            int m_columnCount;
            int m_rowCount;
            QTableWidget *m_tableWidget; // not owned
        };
        
        GraphDataGenerator::GraphDataGenerator(Q3DBars *bargraph, QTableWidget *tableWidget)
            : m_graph(bargraph),
              m_dataTimer(0),
              m_columnCount(100),
              m_rowCount(50),
              m_tableWidget(tableWidget)
        {
            //! [5]
            // Set up bar specifications; make the bars as wide as they are deep,
            // and add a small space between them
            m_graph->setBarThickness(1.0f);
            m_graph->setBarSpacing(QSizeF(0.2, 0.2));
        
            //! [5]
        #ifndef USE_STATIC_DATA
            // Set up sample space; make it as deep as it's wide
            m_graph->rowAxis()->setRange(0, m_rowCount);
            m_graph->columnAxis()->setRange(0, m_columnCount);
            m_tableWidget->setColumnCount(m_columnCount);
        
            // Set selection mode to full
            m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemRowAndColumn);
        
            // Hide axis labels by explicitly setting one empty string as label list
            m_graph->rowAxis()->setLabels(QStringList(QString()));
            m_graph->columnAxis()->setLabels(QStringList(QString()));
        
            m_graph->seriesList().at(0)->setItemLabelFormat(QStringLiteral("@valueLabel"));
        #else
            //! [6]
            // Set selection mode to slice row
            m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemAndRow | QAbstract3DGraph::SelectionSlice);
        
            //! [6]
        #endif
        
            //! [7]
            // Set theme
            m_graph->activeTheme()->setType(Q3DTheme::ThemeDigia);
        
            // Set font
            m_graph->activeTheme()->setFont(QFont("Impact", 20));
        
            // Set preset camera position
            m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront);
            //! [7]
        }
        
        GraphDataGenerator::~GraphDataGenerator()
        {
            if (m_dataTimer) {
                m_dataTimer->stop();
                delete m_dataTimer;
            }
            delete m_graph;
        }
        
        void GraphDataGenerator::start()
        {
        #ifndef USE_STATIC_DATA
            m_dataTimer = new QTimer();
            m_dataTimer->setTimerType(Qt::CoarseTimer);
            QObject::connect(m_dataTimer, &QTimer::timeout, this, &GraphDataGenerator::addRow);
            m_dataTimer->start(0);
            m_tableWidget->setFixedWidth(m_graph->width());
        #else
            //! [8]
            setupModel();
        
            // Table needs to be shown before the size of its headers can be accurately obtained,
            // so we postpone it a bit
            m_dataTimer = new QTimer();
            m_dataTimer->setSingleShot(true);
            QObject::connect(m_dataTimer, &QTimer::timeout, this, &GraphDataGenerator::fixTableSize);
            m_dataTimer->start(0);
            //! [8]
        #endif
        }
        
        void GraphDataGenerator::setupModel()
        {
            //! [9]
            // Set up row and column names
            QStringList days;
            days << "Monday" << "Tuesday" << "Wednesday" << "Thursday" << "Friday" << "Saturday" << "Sunday";
            QStringList weeks;
            weeks << "week 1" << "week 2" << "week 3" << "week 4" << "week 5";
        
            // Set up data         Mon  Tue  Wed  Thu  Fri  Sat  Sun
            float hours[5][7] = {{2.0f, 1.0f, 3.0f, 0.2f, 1.0f, 5.0f, 10.0f},     // week 1
                                 {0.5f, 1.0f, 3.0f, 1.0f, 2.0f, 2.0f, 3.0f},      // week 2
                                 {1.0f, 1.0f, 2.0f, 1.0f, 4.0f, 4.0f, 4.0f},      // week 3
                                 {0.0f, 1.0f, 0.0f, 0.0f, 2.0f, 2.0f, 0.3f},      // week 4
                                 {3.0f, 3.0f, 6.0f, 2.0f, 2.0f, 1.0f, 1.0f}};     // week 5
            //! [9]
        
            // Add labels
            //! [10]
            m_graph->rowAxis()->setTitle("Week of year");
            m_graph->rowAxis()->setTitleVisible(true);
            m_graph->columnAxis()->setTitle("Day of week");
            m_graph->columnAxis()->setTitleVisible(true);
            m_graph->valueAxis()->setTitle("Hours spent on the Internet");
            m_graph->valueAxis()->setTitleVisible(true);
            m_graph->valueAxis()->setLabelFormat("%.1f h");
            //! [10]
        
            //! [11]
            m_tableWidget->setRowCount(5);
            m_tableWidget->setColumnCount(7);
            m_tableWidget->setHorizontalHeaderLabels(days);
            m_tableWidget->setVerticalHeaderLabels(weeks);
            m_tableWidget->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
            m_tableWidget->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
            m_tableWidget->setCurrentCell(-1, -1);
            m_tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
            //! [11]
        
            //! [12]
            for (int week = 0; week < weeks.size(); week++) {
                for (int day = 0; day < days.size(); day++) {
                    QModelIndex index = m_tableWidget->model()->index(week, day);
                    m_tableWidget->model()->setData(index, hours[week][day]);
                }
            }
            //! [12]
        }
        
        void GraphDataGenerator::addRow()
        {
            m_tableWidget->model()->insertRow(0);
            if (m_tableWidget->model()->rowCount() > m_rowCount)
                m_tableWidget->model()->removeRow(m_rowCount);
            for (int i = 0; i < m_columnCount; i++) {
                QModelIndex index = m_tableWidget->model()->index(0, i);
                m_tableWidget->model()->setData(index,
                    ((float)i / (float)m_columnCount) / 2.0f +
                                                (float)(QRandomGenerator::global()->bounded(30)) / 100.0f);
            }
            m_tableWidget->resizeColumnsToContents();
        }
        
        //! [13]
        void GraphDataGenerator::selectFromTable(const QPoint &selection)
        {
            m_tableWidget->setFocus();
            m_tableWidget->setCurrentCell(selection.x(), selection.y());
        }
        //! [13]
        
        //! [14]
        void GraphDataGenerator::selectedFromTable(int currentRow, int currentColumn,
                                                   int previousRow, int previousColumn)
        {
            Q_UNUSED(previousRow)
            Q_UNUSED(previousColumn)
            m_graph->seriesList().at(0)->setSelectedBar(QPoint(currentRow, currentColumn));
        }
        //! [14]
        
        void GraphDataGenerator::fixTableSize()
        {
            int width = m_tableWidget->horizontalHeader()->length();
            width += m_tableWidget->verticalHeader()->width();
            m_tableWidget->setFixedWidth(width + 2);
            int height = m_tableWidget->verticalHeader()->length();
            height += m_tableWidget->horizontalHeader()->height();
            m_tableWidget->setFixedHeight(height + 2);
        }
        
        

        But it says:unknown type name 'QBar3DSeries, QItemModelBarDataProxy, ...

        Why? I did it like you said :)

        J 1 Reply Last reply 25 May 2020, 11:57
        0
        • ? A Former User
          25 May 2020, 11:53

          This is my function, and I copied the mainfunction into it:

          void MainWindow::GrafischesDiagramm()
          {
              //! [0]
             // QApplication app(argc, argv);
              Q3DBars *graph = new Q3DBars();
              QWidget *container = QWidget::createWindowContainer(graph);
              //! [0]
          
              if (!graph->hasContext()) {
                  QMessageBox msgBox;
                  msgBox.setText("Couldn't initialize the OpenGL context.");
                  msgBox.exec();
                 // return -1;
              }
          
              QSize screenSize = graph->screen()->size();
              container->setMinimumSize(QSize(screenSize.width() / 2, screenSize.height() / 2));
              container->setMaximumSize(screenSize);
              container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
              container->setFocusPolicy(Qt::StrongFocus);
          
              //! [1]
              QWidget widget;
              QVBoxLayout *layout = new QVBoxLayout(&widget);
              QTableWidget *tableWidget = new QTableWidget(&widget);
              layout->addWidget(container, 1);
              layout->addWidget(tableWidget, 1, Qt::AlignHCenter);
              //! [1]
          
              tableWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
              tableWidget->setAlternatingRowColors(true);
              widget.setWindowTitle(QStringLiteral("Hours spent on the Internet"));
          
              //! [2]
              // Since we are dealing with QTableWidget, the model will already have data sorted properly
              // into rows and columns, so we simply set useModelCategories property to true to utilize this.
              QItemModelBarDataProxy *proxy = new QItemModelBarDataProxy(tableWidget->model());
              proxy->setUseModelCategories(true);
              QBar3DSeries *series = new QBar3DSeries(proxy);
              series->setMesh(QAbstract3DSeries::MeshPyramid);
              graph->addSeries(series);
              //! [2]
          
              //! [3]
              GraphDataGenerator generator(graph, tableWidget);
              QObject::connect(series, &QBar3DSeries::selectedBarChanged, &generator,
                               &GraphDataGenerator::selectFromTable);
              QObject::connect(tableWidget, &QTableWidget::currentCellChanged, &generator,
                               &GraphDataGenerator::selectedFromTable);
              //! [3]
          
              //! [4]
              widget.show();
              generator.start();
              //return app.exec();
          }
          
          

          And this is outside of the mainwindow class:

          //Grafisches Diagramm
          #include <QtDataVisualization/q3dbars.h>
          #include <QtDataVisualization/qcategory3daxis.h>
          #include <QtDataVisualization/qitemmodelbardataproxy.h>
          #include <QtDataVisualization/qvalue3daxis.h>
          #include <QtDataVisualization/q3dscene.h>
          #include <QtDataVisualization/q3dcamera.h>
          #include <QtDataVisualization/qbar3dseries.h>
          #include <QtDataVisualization/q3dtheme.h>
          
          
          #include <QtWidgets/QApplication>
          #include <QtWidgets/QVBoxLayout>
          #include <QtWidgets/QTableWidget>
          #include <QtGui/QScreen>
          #include <QtCore/QRandomGenerator>
          #include <QtCore/QTimer>
          #include <QtGui/QFont>
          #include <QtCore/QDebug>
          #include <QtWidgets/QHeaderView>
          #include <QtWidgets/QMessageBox>
          
          #define USE_STATIC_DATA
          
          using namespace QtDataVisualization;
          
          class GraphDataGenerator : public QObject
          {
          public:
              explicit GraphDataGenerator(Q3DBars *bargraph, QTableWidget *tableWidget);
              ~GraphDataGenerator();
          
              void setupModel();
              void addRow();
              void changeStyle();
              void changePresetCamera();
              void changeTheme();
              void start();
              void selectFromTable(const QPoint &selection);
              void selectedFromTable(int currentRow, int currentColumn, int previousRow, int previousColumn);
              void fixTableSize();
          
          private:
              Q3DBars *m_graph;
              QTimer *m_dataTimer;
              int m_columnCount;
              int m_rowCount;
              QTableWidget *m_tableWidget; // not owned
          };
          
          GraphDataGenerator::GraphDataGenerator(Q3DBars *bargraph, QTableWidget *tableWidget)
              : m_graph(bargraph),
                m_dataTimer(0),
                m_columnCount(100),
                m_rowCount(50),
                m_tableWidget(tableWidget)
          {
              //! [5]
              // Set up bar specifications; make the bars as wide as they are deep,
              // and add a small space between them
              m_graph->setBarThickness(1.0f);
              m_graph->setBarSpacing(QSizeF(0.2, 0.2));
          
              //! [5]
          #ifndef USE_STATIC_DATA
              // Set up sample space; make it as deep as it's wide
              m_graph->rowAxis()->setRange(0, m_rowCount);
              m_graph->columnAxis()->setRange(0, m_columnCount);
              m_tableWidget->setColumnCount(m_columnCount);
          
              // Set selection mode to full
              m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemRowAndColumn);
          
              // Hide axis labels by explicitly setting one empty string as label list
              m_graph->rowAxis()->setLabels(QStringList(QString()));
              m_graph->columnAxis()->setLabels(QStringList(QString()));
          
              m_graph->seriesList().at(0)->setItemLabelFormat(QStringLiteral("@valueLabel"));
          #else
              //! [6]
              // Set selection mode to slice row
              m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemAndRow | QAbstract3DGraph::SelectionSlice);
          
              //! [6]
          #endif
          
              //! [7]
              // Set theme
              m_graph->activeTheme()->setType(Q3DTheme::ThemeDigia);
          
              // Set font
              m_graph->activeTheme()->setFont(QFont("Impact", 20));
          
              // Set preset camera position
              m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetFront);
              //! [7]
          }
          
          GraphDataGenerator::~GraphDataGenerator()
          {
              if (m_dataTimer) {
                  m_dataTimer->stop();
                  delete m_dataTimer;
              }
              delete m_graph;
          }
          
          void GraphDataGenerator::start()
          {
          #ifndef USE_STATIC_DATA
              m_dataTimer = new QTimer();
              m_dataTimer->setTimerType(Qt::CoarseTimer);
              QObject::connect(m_dataTimer, &QTimer::timeout, this, &GraphDataGenerator::addRow);
              m_dataTimer->start(0);
              m_tableWidget->setFixedWidth(m_graph->width());
          #else
              //! [8]
              setupModel();
          
              // Table needs to be shown before the size of its headers can be accurately obtained,
              // so we postpone it a bit
              m_dataTimer = new QTimer();
              m_dataTimer->setSingleShot(true);
              QObject::connect(m_dataTimer, &QTimer::timeout, this, &GraphDataGenerator::fixTableSize);
              m_dataTimer->start(0);
              //! [8]
          #endif
          }
          
          void GraphDataGenerator::setupModel()
          {
              //! [9]
              // Set up row and column names
              QStringList days;
              days << "Monday" << "Tuesday" << "Wednesday" << "Thursday" << "Friday" << "Saturday" << "Sunday";
              QStringList weeks;
              weeks << "week 1" << "week 2" << "week 3" << "week 4" << "week 5";
          
              // Set up data         Mon  Tue  Wed  Thu  Fri  Sat  Sun
              float hours[5][7] = {{2.0f, 1.0f, 3.0f, 0.2f, 1.0f, 5.0f, 10.0f},     // week 1
                                   {0.5f, 1.0f, 3.0f, 1.0f, 2.0f, 2.0f, 3.0f},      // week 2
                                   {1.0f, 1.0f, 2.0f, 1.0f, 4.0f, 4.0f, 4.0f},      // week 3
                                   {0.0f, 1.0f, 0.0f, 0.0f, 2.0f, 2.0f, 0.3f},      // week 4
                                   {3.0f, 3.0f, 6.0f, 2.0f, 2.0f, 1.0f, 1.0f}};     // week 5
              //! [9]
          
              // Add labels
              //! [10]
              m_graph->rowAxis()->setTitle("Week of year");
              m_graph->rowAxis()->setTitleVisible(true);
              m_graph->columnAxis()->setTitle("Day of week");
              m_graph->columnAxis()->setTitleVisible(true);
              m_graph->valueAxis()->setTitle("Hours spent on the Internet");
              m_graph->valueAxis()->setTitleVisible(true);
              m_graph->valueAxis()->setLabelFormat("%.1f h");
              //! [10]
          
              //! [11]
              m_tableWidget->setRowCount(5);
              m_tableWidget->setColumnCount(7);
              m_tableWidget->setHorizontalHeaderLabels(days);
              m_tableWidget->setVerticalHeaderLabels(weeks);
              m_tableWidget->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
              m_tableWidget->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
              m_tableWidget->setCurrentCell(-1, -1);
              m_tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
              //! [11]
          
              //! [12]
              for (int week = 0; week < weeks.size(); week++) {
                  for (int day = 0; day < days.size(); day++) {
                      QModelIndex index = m_tableWidget->model()->index(week, day);
                      m_tableWidget->model()->setData(index, hours[week][day]);
                  }
              }
              //! [12]
          }
          
          void GraphDataGenerator::addRow()
          {
              m_tableWidget->model()->insertRow(0);
              if (m_tableWidget->model()->rowCount() > m_rowCount)
                  m_tableWidget->model()->removeRow(m_rowCount);
              for (int i = 0; i < m_columnCount; i++) {
                  QModelIndex index = m_tableWidget->model()->index(0, i);
                  m_tableWidget->model()->setData(index,
                      ((float)i / (float)m_columnCount) / 2.0f +
                                                  (float)(QRandomGenerator::global()->bounded(30)) / 100.0f);
              }
              m_tableWidget->resizeColumnsToContents();
          }
          
          //! [13]
          void GraphDataGenerator::selectFromTable(const QPoint &selection)
          {
              m_tableWidget->setFocus();
              m_tableWidget->setCurrentCell(selection.x(), selection.y());
          }
          //! [13]
          
          //! [14]
          void GraphDataGenerator::selectedFromTable(int currentRow, int currentColumn,
                                                     int previousRow, int previousColumn)
          {
              Q_UNUSED(previousRow)
              Q_UNUSED(previousColumn)
              m_graph->seriesList().at(0)->setSelectedBar(QPoint(currentRow, currentColumn));
          }
          //! [14]
          
          void GraphDataGenerator::fixTableSize()
          {
              int width = m_tableWidget->horizontalHeader()->length();
              width += m_tableWidget->verticalHeader()->width();
              m_tableWidget->setFixedWidth(width + 2);
              int height = m_tableWidget->verticalHeader()->length();
              height += m_tableWidget->horizontalHeader()->height();
              m_tableWidget->setFixedHeight(height + 2);
          }
          
          

          But it says:unknown type name 'QBar3DSeries, QItemModelBarDataProxy, ...

          Why? I did it like you said :)

          J Offline
          J Offline
          jsulm
          Lifetime Qt Champion
          wrote on 25 May 2020, 11:57 last edited by
          #9

          @HenrikSt-0 said in Starting App from other class:

          Why?

          Did you add the needed includes in your MainWindow also? Like

          #include <QtDataVisualization/qbar3dseries.h>
          

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          ? 1 Reply Last reply 25 May 2020, 12:03
          0
          • J jsulm
            25 May 2020, 11:57

            @HenrikSt-0 said in Starting App from other class:

            Why?

            Did you add the needed includes in your MainWindow also? Like

            #include <QtDataVisualization/qbar3dseries.h>
            
            ? Offline
            ? Offline
            A Former User
            wrote on 25 May 2020, 12:03 last edited by
            #10

            @jsulm Yes, I have added them there

            J 1 Reply Last reply 25 May 2020, 12:13
            0
            • ? A Former User
              25 May 2020, 12:03

              @jsulm Yes, I have added them there

              J Offline
              J Offline
              jsulm
              Lifetime Qt Champion
              wrote on 25 May 2020, 12:13 last edited by
              #11

              @HenrikSt-0 Can you show the pro file from that example?

              https://forum.qt.io/topic/113070/qt-code-of-conduct

              ? 1 Reply Last reply 25 May 2020, 12:16
              0
              • J jsulm
                25 May 2020, 12:13

                @HenrikSt-0 Can you show the pro file from that example?

                ? Offline
                ? Offline
                A Former User
                wrote on 25 May 2020, 12:16 last edited by
                #12

                @jsulm Yes of course!
                .pro file

                android|ios|winrt {
                    error( "This example is not supported for android, ios, or winrt." )
                }
                
                !include( ../examples.pri ) {
                    error( "Couldn't find the examples.pri file!" )
                }
                
                SOURCES += main.cpp
                
                QT += widgets
                requires(qtConfig(tablewidget))
                
                OTHER_FILES += doc/src/* \
                               doc/images/*
                
                

                .pri file

                INCLUDEPATH += ../../../include
                
                LIBS += -L$$OUT_PWD/../../../lib
                
                TEMPLATE = app
                
                QT += datavisualization
                
                contains(TARGET, qml.*) {
                    QT += qml quick
                }
                
                target.path = $$[QT_INSTALL_EXAMPLES]/datavisualization/$$TARGET
                INSTALLS += target
                
                

                QT += datavisualization i have added to my pro file

                J 1 Reply Last reply 25 May 2020, 12:18
                0
                • ? A Former User
                  25 May 2020, 12:16

                  @jsulm Yes of course!
                  .pro file

                  android|ios|winrt {
                      error( "This example is not supported for android, ios, or winrt." )
                  }
                  
                  !include( ../examples.pri ) {
                      error( "Couldn't find the examples.pri file!" )
                  }
                  
                  SOURCES += main.cpp
                  
                  QT += widgets
                  requires(qtConfig(tablewidget))
                  
                  OTHER_FILES += doc/src/* \
                                 doc/images/*
                  
                  

                  .pri file

                  INCLUDEPATH += ../../../include
                  
                  LIBS += -L$$OUT_PWD/../../../lib
                  
                  TEMPLATE = app
                  
                  QT += datavisualization
                  
                  contains(TARGET, qml.*) {
                      QT += qml quick
                  }
                  
                  target.path = $$[QT_INSTALL_EXAMPLES]/datavisualization/$$TARGET
                  INSTALLS += target
                  
                  

                  QT += datavisualization i have added to my pro file

                  J Offline
                  J Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on 25 May 2020, 12:18 last edited by
                  #13

                  @HenrikSt-0 Change the includes like this:

                  #include <QBar3DSeries>
                  

                  Add

                  QT += datavisualization
                  

                  to your pro file.

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                  ? 1 Reply Last reply 25 May 2020, 12:38
                  1
                  • J jsulm
                    25 May 2020, 12:18

                    @HenrikSt-0 Change the includes like this:

                    #include <QBar3DSeries>
                    

                    Add

                    QT += datavisualization
                    

                    to your pro file.

                    ? Offline
                    ? Offline
                    A Former User
                    wrote on 25 May 2020, 12:38 last edited by
                    #14

                    @jsulm Yes, I did that..
                    But GraphDataGenerator also is an unknown type name...
                    Crazy..
                    This are my #includes in the mainwindow class:

                    #include <QBar3DSeries>
                    #include <Q3DBars>
                    #include <QCategory3DAxis>
                    #include <QItemModelBarDataProxy>
                    #include <QValue3DAxis>
                    #include <Q3DCamera>
                    #include <Q3DTheme>
                    

                    In the GraphDataGenerator class is everything fine and there are no #includes...

                    J 1 Reply Last reply 25 May 2020, 12:54
                    0
                    • S Offline
                      S Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on 25 May 2020, 12:53 last edited by
                      #15

                      One thing>

                      widget.show();
                      generator.start();

                      Both are local variables and will be destroyed at the end of your method so they won't have any effect.

                      Beside that, it looks like you did not copy the classes that are currently not compiling in your project.

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                      1 Reply Last reply
                      1
                      • ? A Former User
                        25 May 2020, 12:38

                        @jsulm Yes, I did that..
                        But GraphDataGenerator also is an unknown type name...
                        Crazy..
                        This are my #includes in the mainwindow class:

                        #include <QBar3DSeries>
                        #include <Q3DBars>
                        #include <QCategory3DAxis>
                        #include <QItemModelBarDataProxy>
                        #include <QValue3DAxis>
                        #include <Q3DCamera>
                        #include <Q3DTheme>
                        

                        In the GraphDataGenerator class is everything fine and there are no #includes...

                        J Offline
                        J Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on 25 May 2020, 12:54 last edited by
                        #16

                        @HenrikSt-0 said in Starting App from other class:

                        GraphDataGenerator

                        It is the class in the example - did you add it to your project?

                        https://forum.qt.io/topic/113070/qt-code-of-conduct

                        1 Reply Last reply
                        0

                        15/16

                        25 May 2020, 12:53

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