Does Qt have combo boxes like Word?

Question

In Microsoft Word, if you want to use Bullets you have a combo box (If we can call it a combo box) to select the shape of the bullet (by clicking the little triangle) or you can just apply the default one by clicking the combo box's button.

Actually the combo box in Word has two parts. For an example let's consider a situation where I want to have a combo box in Qt that has these items as menu items: "Restart", "Shutdown" and "Log off". User needs to choose one of them but he also can apply previously selected item by clicking its button exactly like Windows shutdown menu in start. You can click Shut down or select another option.

How can we achieve this in Qt?

Answer 1

If you are pursuing after a menu that looks like in the second picture, you can use QToolButton to achieve your goal. Use a QToolButton with popupMode set to MenuButtonPopup. It will render a control something similar to following.

Then you can style the look & feel further more using Qt Style Sheets. Read this example on how to style a QToolButton.

Create a QMenu dynamically, so you can attach it to the QToolButton at run-time in such a way that all items will be included in the menu except for the default item. Default action has to be assigned to the QToolButton itself.

You can use void QToolButton::setMenu (QMenu * menu) to assign a QMenu to your QToolButton at run-time.

If you are trying to design a control that is in your 1st screenshot, you will have to create a custom Qt control I guess. There is no default control available, which can yield that look & feel out of the box.