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