Using a factory to create QT promoted widgets

Question

Promoting widgets is one of the best features in the QT Designer. But when using the designer, it 'new's the object there it self ( inside setupUi ). This limits the ability to extend the interface file.

Is it possible to use a factory of some sort to get the promoted widgets, so that when a sub class of a promoted widget is required, this could be achieved via changing the factory and returning the sub class of the widget.

requirement:

NamePanel* myPanel;
void setupUi(QWidget* pWidget)
{
     myPanel = Factory::CreateNamePanel();
}

Is there a work around to achieve this?

Answer 1

Unfortunately it seems not to be possible to add a factory into the Ui files. A workaround would be to have a QWidget with an attached layout in the ui and add the factory generated widget to this layout.

The code would look like this:

ui->setupUi(this);

QWidget *panel = Factory::CreateNamePanel();
ui->namePanelContainer->layout()->addWidget(panel);