Set QGraphicsTextItem exactly in a mousePressEvent.

[AdrianCruz]

Hello again friends!

I implemented a subclass of QGraphicsScene to show numbers in this when is receiving a mouse click event. Everything works correctly but i want to do that better.

This is my code:

void subQGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
{

      if (mouseEvent->button() == Qt::LeftButton)
      {
          QPointF p = mouseEvent->scenePos();
          QFont f;
          int posFil = width/numFil;
          int posCol = height/numCol;

          float tam;

          if (posFil <= posCol){
              tam = posFil/4;
          }else{
              tam = posCol/4;
          }

          f.setPointSizeF(tam);
          QString s = QString::number(count);
          QGraphicsTextItem * text = addText(s,f);
          float point;


          for (int i=1;i<numFil;i++){
              //Si se encuentra entre la linea dibujada y la anterior.
              if ( (p.x() < (posFil*i)) && ((posFil*(i-1)) < p.x())){
                point =  ((posFil*i + posFil*(i-1))/2);
                p.setX(point);
              }

              // Si tratamos con la última línea
              if ( i == numFil-1){
                  if ( (p.x() > posFil*i) && ((posFil*(i+1)) > p.x())){
                      point = ((posFil*i + posFil*(i+1))/2);
                      p.setX(point);
                  }

              }
          }

          for (int j=1;j<numCol;j++){
              //Si se encuentra entre la linea dibujada y la anterior.
              if ( (p.y() < (posCol*j)) && ((posCol*(j-1)) < p.y())){
                  point =  ((posCol*j + posCol*(j-1))/2);
                  p.setY(point);
              }

              if ( j == numCol-1){
                  if ( (p.y() > posCol*j) && ((posCol*(j+1)) > p.y())){
                      point = ((posCol*j + posCol*(j+1))/2);
                      p.setY(point);
                  }

              }
          }

          text->setPos(p.x(),p.y());
          count++;

      }

}

how you can see, i set the Item with setPos of that, but the problem is that setPos indicate where start the item. Then, when i use mouse event, the item starts in that position and the item appears a little bit more down that this click. I want that this coordinates of the mouse event would be the middle of the item. How can i do that? Thanks!