rotate a QPixmap which is set on top of a QLabel

[rishiraj]

Hi,
I can't figure out how to rotate a picture which is set on top of a Label(in Qt 4.4.3)
In Qt 3.3,I did it this way---

int count=0;
void pic_dis::rotate()
{
 count++;
 QPixmap pm1 = QPixmap(fileName); //fileName is the complete path to the  
                                                             //picture             
                                                              //which I need to rotate
 QMatrix m1 ;
    m1.rotate( (90*count)%360 );
    if(count%2==1)
     {
    m1.scale((double)420/pm1.width(),
                        (double)750/pm1.height());
}
    else
	  m1.scale((double)750/pm1.width(),
                        (double)420/pm1.height());
    pm1 = pm1.xForm(m1);
    pic_display->setPixmap(pm1);
}

int count=0;
void pic_dis::rotate()
{
 count++;
 QPixmap pm1 = QPixmap(fileName); //fileName is the complete path to the  
                                                             //picture             
                                                              //which I need to rotate
 QMatrix m1 ;
    m1.rotate( (90*count)%360 );
    if(count%2==1)
     {
    m1.scale((double)420/pm1.width(),
                        (double)750/pm1.height());
}
    else
	  m1.scale((double)750/pm1.width(),
                        (double)420/pm1.height());
    pm1 = pm1.xForm(m1);
    pic_display->setPixmap(pm1);
}

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xForm isn't available in Qt 4.4.3.

Please suggest on what changes I should make in the code to make it work in Qt 4.4.3.
Thanks for your time.