#include "PrintScene.h"#include "../../core/pattern/mvc/ItemObserver.h"#include "../../core/PaperConfig.h"#include "../../core/pattern/singleton/Context.h"#include "Scene.h"#include <sstream>#include <QGraphicsScene>#include <QGraphicsItem>#include <QPrinter>#include <QPainter>#include <QPrintPreviewDialog>#include <QFileDialog>#include <QApplication>#include <QMessageBox>