Pushbutton in delegate with icon - left margin problem

[Talei]

Hello,
I have a problem with painting pushbutton with icon in delegate. The problem is that when I pain Icon with pushbutton left margin/"left position value" is set to 0 = left side of the column in view, but when I don't paint Icon everything is good and I can set left margin to some other value i.e. 10 (with is equal to left value of the CE_PushButton).
The painting looks like this:

QStyleOptionButton pb_Style;
                            pb_Style.state = option.state;
                            pb_Style.rect = option.rect;
//                            pb_Style.icon = QIcon( ":/icon.png" );
//                            pb_Style.iconSize = QSize( 12, 12 );
 
                   /** when Icon is drawn delegate calculate wrong left pos with is equal to the row left */
                QApplication::style()->drawControl( QStyle::CE_PushButton, &pb_Style, painter );

QStyleOptionButton pb_Style;
                            pb_Style.state = option.state;
                            pb_Style.rect = option.rect;
//                            pb_Style.icon = QIcon( ":/icon.png" );
//                            pb_Style.iconSize = QSize( 12, 12 );

                   /** when Icon is drawn delegate calculate wrong left pos with is equal to the row left */
                QApplication::style()->drawControl( QStyle::CE_PushButton, &pb_Style, painter );

To copy to clipboard, switch view to plain text mode 

The result is this: deleg.JPG , icon is painted all the way to the left row pos, but what I want is to paint it to left pos of the pushbutton (CE_PushButton).
The problem is probably that I don't pas rect for the Icon properly but...

Thanks for any help