Adjusts the placement of the buttons for this line edit.

def adjustButtons( self ):
        """
        Adjusts the placement of the buttons for this line edit.
        """
        y = 1
        
        for btn in self.buttons():
            btn.setIconSize(self.iconSize())
            btn.setFixedSize(QSize(self.height() - 2, self.height() - 2))
        
        # adjust the location for the left buttons
        left_buttons = self._buttons.get(Qt.AlignLeft, [])
        x = (self.cornerRadius() / 2.0) + 2
        
        for btn in left_buttons:
            btn.move(x, y)
            x += btn.width()
        
        # adjust the location for the right buttons
        right_buttons = self._buttons.get(Qt.AlignRight, [])
        
        w       = self.width()
        bwidth  = sum([btn.width() for btn in right_buttons])
        bwidth  += (self.cornerRadius() / 2.0) + 1
        
        for btn in right_buttons:
            btn.move(w - bwidth, y)
            bwidth -= btn.width()
        
        self._buttonWidth = sum([btn.width() for btn in self.buttons()])
        self.adjustTextMargins()