#include <QtWidgets>

static QGraphicsTextItem* createItem(QPointF pos)
{
	QGraphicsTextItem* text = new QGraphicsTextItem();
	text->setPlainText("Note");
	text->setFlag(QGraphicsItem::ItemIsMovable);
	text->setPos(pos);
	return text;
}

int main(int argc, char** argv)
{
	QApplication app(argc, argv);

	QGraphicsScene scene;
	scene.setSceneRect(0, 0, 400, 280);

	scene.addItem(createItem(QPointF(20, 20)));
	scene.addItem(createItem(QPointF(100, 20)));
	scene.setBackgroundBrush(Qt::darkGreen);
	QGraphicsView view(&scene);

	view.setTransform(QTransform::fromScale(10, 10));
	view.verticalScrollBar()->setValue(0);
	view.horizontalScrollBar()->setValue(0);
	view.show();

	return app.exec();
}