svg background for QGraphicsView C++

Question

I would like to put an svg image as background to my QGraphicsView without repetition and preserving the ratio. Can you help me? Thanks.

Answer 1

To put a background that fits the size of the object I created a class that inherits from QGraphicsScene and I rewrote drawBackground by putting my svg image in it. myscene.h

class myscene : public QGraphicsScene
{
 public:
   myscene();
   ~myscene();

   void drawBackground(QPainter *painter, const QRectF &rect);
};

myscene.cpp

myscene::myscene():QGraphicsScene()
{
}

myscene::~myscene()
{
}

void myscene::drawBackground(QPainter *painter, const QRectF &rect)
{
    painter->drawImage(rect, QImage(":myPathImage.svg"));
}

Then in my QGraphicsView I passed it this scene and it works. myview.h:

class myview : public QGraphicsView
{
private :
   myscene* _scene;

public: 
   myview();
   ~myview();

};

myview.cpp:

myview::myview() : QGraphicsView()
{
  _scene = new myscene();

  this->setScene(_scene);
  this->showMaximized();
}

myview::~myview()
{
   delete _scene;
}