Let's try to render a scene to an image. In order to do that, we take the following code snippet from our first example where we tried to put items on a scene:
QGraphicsScene scene; QGraphicsRectItem *rectItem = new QGraphicsRectItem(); rectItem->setRect(0,0,50,50); rectItem->setBrush(Qt::green); rectItem->setPen(QColor(255,0,0)); scene.addItem(rectItem);
The only change we make here is that we set a brush resulting in a green-filled rectangle with a red border, which was defined through
setPen(). You can also define the thickness of the stroke by passing a
QPen object with the corresponding arguments. To render the scene, you only need to call
render(), which takes a pointer ...