QGraphicsItemPrivate and qgraphicsitem_cast

[ttvo]

Hi,

I have a QGraphicsTextItem custom object that contains QGraphicsRectItem(s). In my scene's mouseReleaseEvent, I have code to look through the QList<QGraphicsItem *> and only act when the item is of a specific type, Port::Type which is enum { Type = UserType + 16 };

I notice that my QList<QGraphicsItem *> also contains the QGraphicsItemPrivate d_ptr when I select on the QGraphicsTextItem custom object itself, resulting in a crash on the "int aType = anItem->type();" line

My questions are:
1) why the d_ptr is returned in my items() call
2) how am I going to modify my following code to just look for a specific type, Port *, but ignore everything else in the items() call. Thanks

Port *oport = 0;
    while (!startItems.isEmpty()) {
      QGraphicsItem* anItem = startItems.takeFirst();
      if (anItem) {
        int aType = anItem->type();
        if (aType == Port::Type) {
          oport = qgraphicsitem_cast<Port *>(anItem);
          break;
        }
      }
    }
 
where Port is a QGraphicsRectItem

Port *oport = 0;
    while (!startItems.isEmpty()) {
      QGraphicsItem* anItem = startItems.takeFirst();
      if (anItem) {
        int aType = anItem->type();
        if (aType == Port::Type) {
          oport = qgraphicsitem_cast<Port *>(anItem);
          break;
        }
      }
    }

where Port is a QGraphicsRectItem

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[wysota]

QList<QGraphicsItem*> allItems = scene->items();
QList<Port*> portItems;
foreach(QGraphicsItem *item, allItems){
  Port *portItem = qgraphicsitem_cast<Port*>(item);
  if(portItem) portItems << portItem;
}

QList<QGraphicsItem*> allItems = scene->items();
QList<Port*> portItems;
foreach(QGraphicsItem *item, allItems){
  Port *portItem = qgraphicsitem_cast<Port*>(item);
  if(portItem) portItems << portItem;
}

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Where:

class Port : public QGraphics...Item {
public:
  enum { Type = UserType+16 };
  int type() const { return Type; }
};

class Port : public QGraphics...Item {
public:
  enum { Type = UserType+16 };
  int type() const { return Type; }
};

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