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TextEdited set QTableView cell value

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  • B Offline
    B Offline
    BushyAxis793
    wrote on last edited by
    #1

    Hello. I have a little problem (I hope). A few days ago I added a QTableView array to my project which inherits from the QAbstractTableView. I added text placeholders. I would like that when I change a value in QLineEdit, it sets in a specific QTableView cell. I have created a summarymodel that contains everything relevant to my QTableView. Unfortunately I don't really know how to set the value from QLineEdit as a value in the table. I know it needs setData() and a dataChanged() signal.

    QLineEdit

    void QueriesCreator::on_quantityGeneralInformationLineEdit_textEdited(const QString &arg1)
{
    calculations.SetMaterialQuantity(ui->quantityGeneralInformationLineEdit->text().toInt());
    CalculateMaterialCostInZloty();

    summaryModel->SetSummaryQuantity(calculations.GetMaterialQuantity());
    qDebug()<<summaryModel->setData(ui->summaryDefaultTableView->model()->index(6,0),10,Qt::EditRole);

    qDebug()<<summaryModel->GetSummaryQuantity();


}

    Model Settings

        summaryModel = new SummaryModel(ui->summaryDefaultTableView);
    ui->summaryDefaultTableView->setModel(summaryModel);
    ui->summaryDefaultTableView->setEditTriggers(QAbstractItemView::NoEditTriggers);
    ui->summaryDefaultTableView->setSelectionMode(QAbstractItemView::SingleSelection);
    connect(summaryModel,SIGNAL(dataChanged(QModelIndex,QModelIndex)),this,SLOT(UpdateData(QModelIndex,QModelIndex)));

    summarymodel.h

    #ifndef SUMMARYMODEL_H
#define SUMMARYMODEL_H

#include <QAbstractTableModel>

class SummaryModel : public QAbstractTableModel
{
    Q_OBJECT

public:
    explicit SummaryModel(QObject *parent = nullptr);

    // Header:
    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;

    // Basic functionality:
    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
    int columnCount(const QModelIndex &parent = QModelIndex()) const override;

    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
    bool setData(const QModelIndex &index, const QVariant &value, int role);

    void SetSummaryQuantity(const int&);
    int GetSummaryQuantity() const;


private:

    const int rowQuantity = 8;
    const int columnQuantity = 5;
    int summaryQuantity = 0;
};

#endif // SUMMARYMODEL_H

    summarymodel.cpp

    #include "summarymodel.h"

SummaryModel::SummaryModel(QObject *parent)
    : QAbstractTableModel(parent)
{
}

QVariant SummaryModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if(role==Qt::DisplayRole)
    {
        if(orientation == Qt::Horizontal) {
             switch(section) {
                 case 0:
                     return QString("Ilość");
                 case 1:
                     return QString("Waluta");
                 case 2:
                     return QString("Obróbka");
                 case 3:
                    return QString("Materiał");
                case 4:
                    return QString("Różnica");
                 default:
                    return QVariant();
            }
        }

        return QVariant();
    }

    return QVariant();
}

int SummaryModel::rowCount(const QModelIndex &parent) const
{
    if (parent.isValid()) return 0;

    return rowQuantity;
}

int SummaryModel::columnCount(const QModelIndex &parent) const
{
    if (parent.isValid()) return 0;

    return columnQuantity;

}

QVariant SummaryModel::data(const QModelIndex &index, int role) const
{
    if (role == Qt::DisplayRole)
    {
        //Quantity
        if (index.row() == 0 && index.column() == 0) return QString("50");
        if (index.row() == 2 && index.column() == 0) return QString("100");
        if (index.row() == 4 && index.column() == 0) return QString("1000");
        if (index.row() == 6 && index.column() == 0) return QString("0");

        //Currency- byc w moze w przyszlosci zmienic na inne
        if (index.row() == 0 && index.column() == 1) return QString("PLN");
        if (index.row() == 1 && index.column() == 1) return QString("EUR");
        if (index.row() == 2 && index.column() == 1) return QString("PLN");
        if (index.row() == 3 && index.column() == 1) return QString("EUR");
        if (index.row() == 4 && index.column() == 1) return QString("PLN");
        if (index.row() == 5 && index.column() == 1) return QString("EUR");
        if (index.row() == 6 && index.column() == 1) return QString("PLN");
        if (index.row() == 7 && index.column() == 1) return QString("EUR");

        //Price Placeholders
        //Material
        if (index.row() == 0 && index.column() == 2) return QString("0,00");
        if (index.row() == 1 && index.column() == 2) return QString("0,00");
        if (index.row() == 2 && index.column() == 2) return QString("0,00");
        if (index.row() == 3 && index.column() == 2) return QString("0,00");
        if (index.row() == 4 && index.column() == 2) return QString("0,00");
        if (index.row() == 5 && index.column() == 2) return QString("0,00");
        if (index.row() == 6 && index.column() == 2) return QString("0,00");
        if (index.row() == 7 && index.column() == 2) return QString("0,00");

        //Machining
        if (index.row() == 0 && index.column() == 3) return QString("0,00");
        if (index.row() == 1 && index.column() == 3) return QString("0,00");
        if (index.row() == 2 && index.column() == 3) return QString("0,00");
        if (index.row() == 3 && index.column() == 3) return QString("0,00");
        if (index.row() == 4 && index.column() == 3) return QString("0,00");
        if (index.row() == 5 && index.column() == 3) return QString("0,00");
        if (index.row() == 6 && index.column() == 3) return QString("0,00");
        if (index.row() == 7 && index.column() == 3) return QString("0,00");

        //Diference
        if (index.row() == 0 && index.column() == 4) return QString("0,00");
        if (index.row() == 1 && index.column() == 4) return QString("0,00");
        if (index.row() == 2 && index.column() == 4) return QString("0,00");
        if (index.row() == 3 && index.column() == 4) return QString("0,00");
        if (index.row() == 4 && index.column() == 4) return QString("0,00");
        if (index.row() == 5 && index.column() == 4) return QString("0,00");
        if (index.row() == 6 && index.column() == 4) return QString("0,00");
        if (index.row() == 7 && index.column() == 4) return QString("0,00");
    }
    if(role==Qt::TextAlignmentRole)
    {
        return Qt::AlignCenter;
    }

    return QVariant();
}

bool SummaryModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
    if (index.isValid() && role == Qt::EditRole)
    {
        emit dataChanged(index,index);
        return true;
    }
    else
    {
        return false;
    }
}


void SummaryModel::SetSummaryQuantity( const int &quantity)
{
    summaryQuantity = quantity;
}

int SummaryModel::GetSummaryQuantity() const
{
    return summaryQuantity;
}

    I want the cell with index 6,0 to take the value from QLineEdit. I have no idea how to do this. Method setData() return true. When I connect signal and try it with qDebug() it works as I expect (code below)

    SLOT (UpdateData())

    void QueriesCreator::UpdateData(QModelIndex indexA, QModelIndex indexB)
{
   qDebug()<<"Hello";
}

    Any idea how to fix it?

    Thanks and Have a great day!

    SGaistS 1 Reply Last reply
    0
  • SGaistS Offline
    SGaistS Offline
    SGaist Lifetime Qt Champion
    replied to BushyAxis793 on last edited by
    #2

    Hi,

    Your setData method does nothing. If you want to see changes, you need to store the data passed through setData and return that stored data in the data function.

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

    B 1 Reply Last reply
    1
  • B Offline
    B Offline
    BushyAxis793
    replied to SGaist on last edited by BushyAxis793
    #3

    @SGaist This is the solution! Thank you very much. Below is my new setData() and TextEdited()

    setData()

    bool SummaryModel::setData(const QModelIndex &index, const QVariant &value, int role)
{

    if (index.isValid() && role == Qt::EditRole)
    {
        SetSummaryQuantity(value.toInt());
        emit dataChanged(index,index);
        return true;
    }
    else
    {
        return false;
    }

    return false;
}

    TextEdited()

    void QueriesCreator::on_quantityGeneralInformationLineEdit_textEdited(const QString &arg1)
{
    calculations.SetMaterialQuantity(ui->quantityGeneralInformationLineEdit->text().toInt());
    CalculateMaterialCostInZloty();

    summaryModel->setData(ui->summaryDefaultTableView->model()->index(6,0),ui->quantityGeneralInformationLineEdit->text().toInt(),Qt::EditRole);
}

    and of course the data()

    QVariant SummaryModel::data(const QModelIndex &index, int role) const
{
    if (role == Qt::DisplayRole)
    {
        //Quantity
        if (index.row() == 0 && index.column() == 0) return QString("50");
        if (index.row() == 2 && index.column() == 0) return QString("100");
        if (index.row() == 4 && index.column() == 0) return QString("1000");
        if (index.row() == 6 && index.column() == 0) return GetSummaryQuantity();

        //Currency- byc w moze w przyszlosci zmienic na inne
        if (index.row() == 0 && index.column() == 1) return QString("PLN");
        if (index.row() == 1 && index.column() == 1) return QString("EUR");
        if (index.row() == 2 && index.column() == 1) return QString("PLN");
        if (index.row() == 3 && index.column() == 1) return QString("EUR");
        if (index.row() == 4 && index.column() == 1) return QString("PLN");
        if (index.row() == 5 && index.column() == 1) return QString("EUR");
        if (index.row() == 6 && index.column() == 1) return QString("PLN");
        if (index.row() == 7 && index.column() == 1) return QString("EUR");

        //Price Placeholders
        //Material
        if (index.row() == 0 && index.column() == 2) return QString("0,00");
        if (index.row() == 1 && index.column() == 2) return QString("0,00");
        if (index.row() == 2 && index.column() == 2) return QString("0,00");
        if (index.row() == 3 && index.column() == 2) return QString("0,00");
        if (index.row() == 4 && index.column() == 2) return QString("0,00");
        if (index.row() == 5 && index.column() == 2) return QString("0,00");
        if (index.row() == 6 && index.column() == 2) return QString("0,00");
        if (index.row() == 7 && index.column() == 2) return QString("0,00");

        //Machining
        if (index.row() == 0 && index.column() == 3) return QString("0,00");
        if (index.row() == 1 && index.column() == 3) return QString("0,00");
        if (index.row() == 2 && index.column() == 3) return QString("0,00");
        if (index.row() == 3 && index.column() == 3) return QString("0,00");
        if (index.row() == 4 && index.column() == 3) return QString("0,00");
        if (index.row() == 5 && index.column() == 3) return QString("0,00");
        if (index.row() == 6 && index.column() == 3) return QString("0,00");
        if (index.row() == 7 && index.column() == 3) return QString("0,00");

        //Diference
        if (index.row() == 0 && index.column() == 4) return QString("0,00");
        if (index.row() == 1 && index.column() == 4) return QString("0,00");
        if (index.row() == 2 && index.column() == 4) return QString("0,00");
        if (index.row() == 3 && index.column() == 4) return QString("0,00");
        if (index.row() == 4 && index.column() == 4) return QString("0,00");
        if (index.row() == 5 && index.column() == 4) return QString("0,00");
        if (index.row() == 6 && index.column() == 4) return QString("0,00");
        if (index.row() == 7 && index.column() == 4) return QString("0,00");
    }
    if(role==Qt::TextAlignmentRole)
    {
        return Qt::AlignCenter;
    }

    return QVariant();
}

    Now It works as I expect. Thanks and Have a good day!

    1 Reply Last reply
    0
  • B BushyAxis793 has marked this topic as solved on

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