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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #ifndef MAINWINDOW_H
++ #define MAINWINDOW_H
++
++ #include <QMainWindow>
++
++ QT_BEGIN_NAMESPACE
++ class QAction;
++ class QToolBar;
++ class QMenu;
++ class QUndoStack;
++ class QUndoView;
++ QT_END_NAMESPACE
++ class DiagramScene;
++ class DiagramItem;
++
++ //! [0]
++ class MainWindow : public QMainWindow
++ {
++ Q_OBJECT
++
++ public:
++ MainWindow();
++
++ public slots:
++ void itemMoved(DiagramItem *movedDiagram, const QPointF &moveStartPosition);
++
++ private slots:
++ void deleteItem();
++ void addBox();
++ void addTriangle();
++ void about();
++ void updateActions();
++
++ private:
++ void createActions();
++ void createMenus();
++ void createToolBars();
++ void createUndoView();
++
++ QAction *deleteAction = nullptr;
++ QAction *addBoxAction = nullptr;
++ QAction *addTriangleAction = nullptr;
++ QAction *undoAction = nullptr;
++ QAction *redoAction = nullptr;
++ QAction *exitAction = nullptr;
++ QAction *aboutAction = nullptr;
++
++ QMenu *fileMenu = nullptr;
++ QMenu *editMenu = nullptr;
++ QMenu *itemMenu = nullptr;
++ QMenu *helpMenu = nullptr;
++
++ DiagramScene *diagramScene = nullptr;
++ QUndoStack *undoStack = nullptr;
++ QUndoView *undoView = nullptr;
++ };
++ //! [0]
++
++ #endif