OpenFaces | OpenFaces JSF library

This widget does not come by default in Qt, but it is not complicated to build it, the first thing you should do is list the requirements:

• The button with text >> is enabled if the list on the left is not empty, if pressed it must move all the items.

• The button with text << similar to the previous one but with the list on the right

• The button with text > is enabled if an item in the list on the left is selected, if pressed, the selected item should be moved to the right one.

• The button with text < the same but for the right side.

• The button with "up" text is enabled if an item is selected and this is not the first item in the list. when pressed you must move the current item to a higher position.

• The button with "down" text is enabled if an item is selected and this is not the last item in the list. when pressed you must move the current item to a lower position.

As we see most of the logic depends on the selection of items, for this we connect the signal itemSelectionChanged with the slot that decides whether the buttons are enabled or not.

To move items we must use takeItem() and addItem(), the first removes the item and the second adds it.

Moving up or down is equivalent to removing the item and then inserting it, for this we use takeItem() again with insertItem()

All the above is implemented in the following widget: