QStackedWidget: Bind to combo box?

[nonot1]

Hello,

Is it possible to "bind" (sorry for the .net term), the list of available widgets in a QStackedWidget to a combo box?

The "docs":http://doc.qt.nokia.com/latest/qstackedwidget.html show using a combo box, but only via a manual and fragile setup.

Can a QComboBox just automatically display the available pages?

Thank you

[goetz]

Not out of the box. You will have to add some code yourself.

[nonot1]

Two questions:

1. Is there a canonical / well-accepted way to bind the combobox to the stack widget content and state?

2. As a separate effort, if I wanted to wrap this in a (designer friendly) custom widget, how would I do that?

Thank you

[goetz]

No, there is no standard way to do this. You will have to connect to a signal of the combobox and call some slot on the stacked widget. As an outline:

• "QStackedWidget::addWidget() ":http://doc.qt.nokia.com/4.7/qstackedwidget.html#addWidget returns an int - store that
• call "QComboBox::addItem() ":http://doc.qt.nokia.com/4.7/qcombobox.html#addItem and use the stored int for the user data of the new item
• connect a slot of your own to the signal "activated(int) ":http://doc.qt.nokia.com/4.7/qcombobox.html#activated of your combo box
• retrieve the user data (= index in stacked widget) with "QComboBox::itemData() ":http://doc.qt.nokia.com/4.7/qcombobox.html#itemData
• use the int to switch to the desired widget using "QStackedWidget::setCurrentIndex() ":http://doc.qt.nokia.com/4.7/qstackedwidget.html#currentIndex-prop