Change QTabWidger (Insert a controller with buttons)

[vascaino90]

Hello to all.
    I need to create a component as QTabWidget, but between the first two tabs
there should be a controller with 4 buttons for navigation between tabs:
previous, next, first and last.
    I did, but I wonder if there is a better way.
    I did as follows:
    1) I created a QTabWidget.
    2) In the second tab, I added a widget containing 4 buttons and no text.
    3) mapped events.
   
problems:

1. The controller should be different stylesheet from tab stylesheet
   (tabs are rounded and controller are rectangular).
2. I have to disable the event (change the page when I click on the tab controller).

I thank you.