wasm and QTableWidget

Erni42 0

I'm running Qt 6.7.2 and have a QTableWidget to show some custom QWidgets for device status dashboard. As a normal app, it work's fine. In wasm I'm not able to place any widget with setCellWidget. Is there something I have to recognize?

QLabel label(record.value("mac").toString());
label.setStyleSheet("{background: green;}");
ui->deviceTable->setCellWidget(row, column, &label);

did not show the QLabel and

ui->deviceTable->setCellWidget(row, column, new QLabel(record.value("mac").toString()));

also not. The QTableWidget is defined in the ui-file, initialized and visible. A row with three columns is also visible.

Thanks.
Dietmar

Erni42 0

I had the constructor of the QWidget sub class inside a lambda construct and was not able to make it work. Now I call a function of the owner class from the lambda and everything works fine.
old code:


    connect(m_database, &WsDatabase::devicesCollected, this, [&](QJsonArray data){
        disconnect(m_database, &WsDatabase::devicesCollected, this, nullptr);
        for(const QJsonValue &value : data) {
 
           DeviceWidget *widget = new DeviceWidget(m_user, this);
            ui->deviceTable->setCellWidget(row, column, widget);
            column++;
            if (column == 3) {
                row++;
                column = 0;
            }
        }
    });
    m_database->getData(
        "select * from devices",
        m_user.userRole == WsServ::UserRoles::SuperAdmin ? "" : QString(" id_usergroup = %1").arg(m_idSelectedUserGroup),
        WsServ::Devices
        );

new code:

connect(m_database, &WsDatabase::devicesCollected, this, [this](QJsonArray data){
        disconnect(m_database, &WsDatabase::devicesCollected, this, nullptr);

        deviceEntryReady(data);
    });

A sample app from scratch didn't had the problem.