#include "vlayoutpaper.h"#include <QBrush>#include <QCoreApplication>#include <QGraphicsRectItem>#include <QGraphicsScene>#include <QList>#include <QPen>#include <QPointF>#include <QRect>#include <QRectF>#include <QThread>#include <QThreadPool>#include <QVector>#include <Qt>#include <QtAlgorithms>#include "vbestsquare.h"#include "vcontour.h"#include "vlayoutpiece.h"#include "vlayoutpaper_p.h"#include "vposition.h"