Context::getInstance. The implementation is based on the Qt Graphics View framework. } Page slots-qobject-to-qgraphicsitem-performance-hit. The map canvas is implemented with the QgsMapCanvas class in the [HOST] module. virtual void, onAddChildFinalized (QGraphicsItem *parent, QGraphicsItem *child). virtual void, onAddItemFinalized ; Public Member Functions. Conceito que hoje não é usado foreach (QGraphicsItem *item, items()). Eirik tem uma ideia: “sinais e slots”. SLOT(advance())); timer->start(50); return [HOST](); }. [HOST]();. size(); for(int i = 0 ; i m_particulas; };. [HOST] QGraphicsItem *, getBackgroundItem (). 0. (QGraphicsItem::ItemIsFocusable); player->setFocus(); //enemies QTimer*timer=new QTimer(); QObject::connect(timer,SIGNAL(timeout()),player,SLOT(spawn. Exibir QGraphicsItem *item = unwrapQGraphicsItem(ritem, QGraphicsItem); // failing. . QGraphicsItem* qitem = ((QGraphicsItem*)item);. void, setGridVisible (bool active). Public Slots. Exemplo n. void. removeItem(item);. º 3. Protected Slots. int total = 0 SLOT(printPaper(QPrinter*)));. bool, isGridVisible (). void, changeResolution (int w, int h).