c++ - Wider line in QGraphicScene on MainWindow::resizeEvent -


in window i've got qgraphicscene. inside qgraphicscene draw lines (see first picture).

enter image description here

my bug when resize window code below called fit scene in view.

void gobobmainwindow::resizeevent(qresizeevent *event) {     goview->fitinview(goscene->scenerect(), qt::keepaspectratio);     qmainwindow::resizeevent(event); }

but this.

enter image description here

edit: on platforms (os x, windows, gnu/linux)

how fix ?

problem solved :

goview->setrenderhints(qpainter::antialiasing | qpainter::smoothpixmaptransform);

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