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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QApplication>
++ #include <QGraphicsScene>
++ #include <QGraphicsView>
++
++ #include "coloritem.h"
++ #include "robot.h"
++
++ #include <cmath>
++
++
++ class GraphicsView : public QGraphicsView
++ {
++ public:
++ using QGraphicsView::QGraphicsView;
++
++ protected:
++ void resizeEvent(QResizeEvent *) override
++ {
++ }
++ };
++
++ //! [0]
++ int main(int argc, char **argv)
++ {
++ QApplication app(argc, argv);
++
++ //! [0]
++ //! [1]
++ QGraphicsScene scene(-200, -200, 400, 400);
++
++ for (int i = 0; i < 10; ++i) {
++ ColorItem *item = new ColorItem;
++ item->setPos(::sin((i * 6.28) / 10.0) * 150,
++ ::cos((i * 6.28) / 10.0) * 150);
++
++ scene.addItem(item);
++ }
++
++ Robot *robot = new Robot;
++ robot->setTransform(QTransform::fromScale(1.2, 1.2), true);
++ robot->setPos(0, -20);
++ scene.addItem(robot);
++ //! [1]
++ //! [2]
++ GraphicsView view(&scene);
++ view.setRenderHint(QPainter::Antialiasing);
++ view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
++ view.setBackgroundBrush(QColor(230, 200, 167));
++ view.setWindowTitle("Drag and Drop Robot");
++ view.show();
++
++ return app.exec();
++ }
++ //! [2]