Use event filters in your main GUI class:
void GUI::GUI()
{
ui->mListView->installEventFilter(this);
}
bool GUI::eventFilter(QObject *object, QEvent *event)
{
if (object == ui->mListView && event->type() == QEvent::KeyPress) {
QKeyEvent *ke = static_cast<QKeyEvent *>(event);
if (ke->key() == Qt::Key_Escape)
// special Esc handling here
}
else
return false;
}
It's simple to use your custom widgets in Qt Designer. Right click on the QListView and choose Promote to ... there add a new class and apply it to the widget.
http://qt-project.org/doc/qt-4.8/designer-using-custom-widgets.html