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