Custom QWidget inside a QTableWidgetItem

riczam

Hello everybody,
I'm trying to put a custom Widget called PushButtonElimina inside a cell in QTableWidget but PushButtonElimina is showed inside new window.

In the snippet below the code that I used to create custom widget

PushButtonElimina::PushButtonElimina(QWidget *parent, int riga) :
  QWidget(parent), riga{riga}
{
  pWidget = new QWidget();
  azione = new QPushButton();
  azione->setParent(parent);
  pixmap = new QPixmap(":/img/Resources/images/notification-error_114458.png");
  QIcon icona(*pixmap);
  azione->setIconSize((QSize(32, 32)));
  azione->setIcon(icona);
  azione->setFixedSize(32, 32);
  azione->setFlat(true);
  pLayout = new QHBoxLayout(pWidget);
  pLayout->addWidget(azione);
  pLayout->setAlignment(Qt::AlignCenter);
  pLayout->setContentsMargins(50, 0, 50, 0);
  pWidget->setLayout(pLayout);

  connect(azione, SIGNAL(clicked()), this, SLOT(on_pushButtonElimina_clicked()));
}

and here where I use it

PushButtonElimina *azione = new PushButtonElimina(ui->tableWidgetIngredienti, riga);

  connect(azione, SIGNAL(eliminaRiga()), this, SLOT(on_pushButtonElimina_clicked()));

  ui->tableWidgetIngredienti->setCellWidget(
    riga,
    2,
    azione
  );

Any suggestion to solve this problem? I prefer to create a custom widget because I used it around all the project and I want to avoid code replications.

Thanks in advanced

Ric

Christian Ehrlicher

@riczam said in Custom QWidget inside a QTableWidgetItem:

pWidget = new QWidget();

Here you create a new widget and put all other widgets into it for no reason.

riczam

@Christian-Ehrlicher do you suggest to use only QPushButton and put it inside the cell?
How can I set padding in the cell if I do not set a layout?

Christian Ehrlicher

@riczam said in Custom QWidget inside a QTableWidgetItem:

do you suggest to use only QPushButton and put it inside the cell?

No, I just told you that you create a new QWidget inside your custom widget and put all in there instead in your custom widget. And this causes your problem.

riczam

@Christian-Ehrlicher thanks for your tips! I removed the internal Widget and it works as expected.

Here the correct code

PushButtonElimina::PushButtonElimina(QWidget *parent, int riga) :
  QWidget(parent), riga{riga}
{
  azione = new QPushButton();
  azione->setParent(parent);
  pixmap = new QPixmap(":/img/Resources/images/notification-error_114458.png");
  QIcon icona(*pixmap);
  azione->setIconSize((QSize(32, 32)));
  azione->setIcon(icona);
  azione->setFixedSize(32, 32);
  azione->setFlat(true);
  pLayout = new QHBoxLayout(this);
  pLayout->addWidget(azione);
  pLayout->setAlignment(Qt::AlignCenter);
  pLayout->setContentsMargins(50, 0, 50, 0);
  this->setLayout(pLayout);

  connect(azione, SIGNAL(clicked()), this, SLOT(on_pushButtonElimina_clicked()));
}