ihm2

void GLWidget::rotateBy(int xAngle, int yAngle, int zAngle)
{
   xRot+=xAngle;
   yRot+=yAngle;
   zRot+=zAngle;

   printf("rotby x%i y%i z%i\n", xAngle, yAngle, zAngle);

   updateGL();
}
void GLWidget::mousePressEvent( QMouseEvent * event )
{
   point=event->pos();
/*
   point.setX(event->x());
   point.setY(event->y());
*/
}
void GLWidget::mouseMoveEvent( QMouseEvent * event )
{
   int dx,dy;
   dx=event->x()-point.x();
   dy=event->y()-point.y();
   if (event->buttons()==Qt::LeftButton)
   {
      rotateBy(8 * dy, 8 * dx, 0);
   }
   else if (event->buttons()==Qt::RightButton)
   {
      rotateBy(8 * dy, 0, 8 * dx);
   }
}