Regarding how to find the children

Pradeep Kumar

Hi,

i have a VBox and HBox layout, widgets are added to Hbox, later align using VBox,
how can i find children.

Code below:

m_hbox->addWidget(addKeys(tr("Q"),characters));
   m_hbox->addWidget(addKeys(tr("W"),characters));
   m_hbox->addWidget(addKeys(tr("E"),characters));
   m_hbox->addWidget(addKeys(tr("R"),characters));
   m_hbox->addWidget(addKeys(tr("T"),characters));
   m_hbox->addWidget(addKeys(tr("Y"),characters));
   m_hbox->addWidget(addKeys(tr("U"),characters));
   m_hbox->addWidget(addKeys(tr("I"),characters));
   m_hbox->addWidget(addKeys(tr("O"),characters));
   m_hbox->addWidget(addKeys(tr("P"),characters));
   m_hbox->addWidget(addKeys("backspaceicon",backspace_icon));

   m_vbox->insertLayout(0,m_hbox);


   m_hbox1->addWidget(addKeys(tr("A"),characters));
   m_hbox1->addWidget(addKeys(tr("S"),characters));
   m_hbox1->addWidget(addKeys(tr("D"),characters));
   m_hbox1->addWidget(addKeys(tr("F"),characters));
   m_hbox1->addWidget(addKeys(tr("G"),characters));
   m_hbox1->addWidget(addKeys(tr("H"),characters));
   m_hbox1->addWidget(addKeys(tr("J"),characters));
   m_hbox1->addWidget(addKeys(tr("K"),characters));
   m_hbox1->addWidget(addKeys(tr("L"),characters));
   m_hbox1->addWidget(addKeys("entericon",enter_icon));

   m_vbox->insertLayout(1,m_hbox1);


   m_hbox2->addWidget(addKeys("capsicon",caps_icon));
   m_hbox2->addWidget(addKeys(tr("Z"),characters));
   m_hbox2->addWidget(addKeys(tr("X"),characters));
   m_hbox2->addWidget(addKeys(tr("C"),characters));
   m_hbox2->addWidget(addKeys(tr("V"),characters));
   m_hbox2->addWidget(addKeys(tr("B"),characters));
   m_hbox2->addWidget(addKeys(tr("N"),characters));
   m_hbox2->addWidget(addKeys(tr("M"),characters));
   m_hbox2->addWidget(addKeys(tr(","),characters));
   m_hbox2->addWidget(addKeys(tr("."),characters));
   m_hbox2->addWidget(addKeys("capsicon",caps_icon));


   m_vbox->insertLayout(2,m_hbox2);


   m_hbox3->addWidget(addKeys("&123",numbers));
   m_hbox3->addWidget(addKeys("multilingual",multilingual_icon));
   m_hbox3->addWidget(addKeys("spacebar",spacebar));
   m_hbox3->addWidget(addKeys(",",characters));
   m_hbox3->addWidget(addKeys(":-)",characters));
   m_hbox3->addWidget(addKeys("close",close_icon));

   m_vbox->insertLayout(3,m_hbox3);


   this->setLayout(m_vbox);

how to find children ?.

If i try to use below code, getting zero as list size.

QVBoxLayout * layout = m_vbox->findChild<QVBoxLayout *> ();
  QList<QWidget *> list = layout->findChildren<QWidget *> ();

  qDebug() <<  "list size of children present :>" << list.size() << endl;

Thanks,

VRonin

QLayout is a QObject, not a QWidget. the items you are searching for are not children of QLayout but of m_vbox directly

QList<QWidget *> list = m_vbox->findChildren<QWidget *> ();

Pradeep Kumar

used
QList<QWidget *> list = m_vbox->findChildren<QWidget *> ();

getting zero as list size.:(

Thanks,

Venkatesh V

@Pradeep-Kumar
Hi,

If you want to get all the widgets inside the layout try this,

QList<QWidget *> list;
for (int i = 0; i < lyt->count(); ++i)
{
QWidget *widget = lyt->itemAt(i)->widget();
if (widget != NULL)
{
list.append(widget);
}
}

Pradeep Kumar

Just want to know all the children present in Vbox.

Thanks,

Venkatesh V

@Pradeep-Kumar said in Regarding how to find the children:

Just want to know all the children present in Vbox.

what do you mean?

Pradeep Kumar

meaning i want to find children present in vbox. as i provided code above.

Thanks,

Vinod Kuntoji

@Pradeep-Kumar ,

for(int i = 0; i < m_VBox->count(); i++) {
    qDebug() << Q_FUNC_INFO << "No of child widgets: " << m_VBox->itemAt(i)->layout()->count() << endl;
    int count = m_VBox->itemAt(i)->layout()->count();
    for(int j = 0; j < count; j++) {
        qDebug() << Q_FUNC_INFO << "Widget at:" << m_VBox->itemAt(i)->layout()->itemAt(j)->widget()->objectName() << endl;
    }
}

Pradeep Kumar

Hi,

thanks all, it worked and i am getting the child present in the vbox layout.

Thanks,