QTreeWidgetItem checkState() signal and slot?
-
How do I implement a QTreeWidgetItem checkState() signal and slot?
I have a child QTreeWidgetitem that I want to deliver a signal if it is checked or unchecked, so the parent treewidgetitem will uncheck too. Sort of like a full packge install, that unchecks the parent box if just one of the child boxes are unchecked.
I'm learning signals and slots implementation without the ui, just now.
-
Hi,
You don't do it on the items (they are not QObject), but in the QTreeWidget using e.g.
@QTreeWidget::itemChanged ( QTreeWidgetItem * item, int column )@Connect that signal to a custom slot and handle there the modification of your items.
Hope it helps
-
TWI->setCheckState(column, Qt::Checked); connect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*, int)), this, SLOT(treeWidgetItemChanged(QTreeWidgetItem*, int))); void MainWindow::treeWidgetItemChanged(QTreeWidgetItem *TWI, int column) { if (TWI->checkState(column) == Qt::Checked){ ...... } }