How can i remove a widget from QSplitter?

kiesxx

I've tried the QSplitter::hide(),show(),update function, also delete QWidget.
Nothing work.

@void PlainView::addComponent(QWidget *widget)
{
qDebug() << _splitOne->widget(1);

//delete current widget on index 1
delete _splitOne->widget(1);
//add new widget on index 1
_splitOne->addWidget(widget);

qDebug() << _splitOne->widget(1);
}

//output
QObject(0x0)
QTextEdit(0xa0f580@

Thats okey, but i can't see the new widget. Some People told me, try this:
@_splitOne->widget(1)->setParent(NULL)@ or @_splitOne->widget(1)->setParent(0);@ But my program throw an exception:
@The program has unexpectedly finished.@

How can i delete the widget / see the new widget ?

Chris Kawa

Hi, welcome to devnet.

Have a look at these examples:
@
QString nextName() {
static int index = 0;
return QString("Label ") + QString::number(index++);
}

void MainWindow::on_pushButtonAddFirst_clicked() {
ui->splitter->insertWidget(0, new QLabel(nextName(), this));
}

void MainWindow::on_pushButtonAddLast_clicked() {
ui->splitter->addWidget(new QLabel(nextName(), this));
}

void MainWindow::on_pushButtonRemoveFirst_clicked() {
if(ui->splitter->count() > 0)
ui->splitter->widget(0)->deleteLater();
}

void MainWindow::on_pushButtonRemoveLast_clicked() {
if(ui->splitter->count() > 0)
ui->splitter->widget(ui->splitter->count() -1)->deleteLater();
}
@

kiesxx

here is my solution:

@ if(splitter->widget(widgetPos)){
// remove widget from splitter
QWidget *oldWidget = splitter->widget(widgetPos);
// remove parent of the widget from the gui
oldWidget->setParent(0);
// delete current widget on index 1
oldWidget->deleteLater();
}
splitter->insertWidget(widgetPos, widget);@