QDMGraphicsScene.hpp

class QDMGraphicsScene : public QGraphicsScene
{
    public:
        QDMGraphicsScene(QWidget* pobj = 0);

        void drawBackground(QPainter *painter, const QRectF &rect);
    private:
        const int32_t scnWidth  = 64'000;
        const int32_t scnHeight = 64'000;
        const uint8_t grdSize   = 20;
};