#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QMainWindow>class QAction;class QLabel;class FindDialog;class Spreadsheet;class MainWindow : public QMainWindow{    Q_OBJECTpublic:    MainWindow();protected:    void closeEvent(QCloseEvent *event);private slots:    void newFile();    void open();    bool save();    bool saveAs();    void find();    void goToCell();    void sort();    void about();    void openRecentFile();    void updateStatusBar();    void spreadsheetModified();private:    void createActions();    void createMenus();    void createContextMenu();    void createToolBars();    void createStatusBar();    void readSettings();    void writeSettings();    bool okToContinue();    bool loadFile(const QString &fileName);    bool saveFile(const QString &fileName);    void setCurrentFile(const QString &fileName);    void updateRecentFileActions();    QString strippedName(const QString &fullFileName);    Spreadsheet *spreadsheet;    FindDialog *findDialog;    QLabel *locationLabel;    QLabel *formulaLabel;    QStringList recentFiles;    QString curFile;    enum { MaxRecentFiles = 5 };    QAction *recentFileActions[MaxRecentFiles];    QAction *separatorAction;    QMenu *fileMenu;    QMenu *editMenu;    QMenu *selectSubMenu;    QMenu *toolsMenu;    QMenu *optionsMenu;    QMenu *helpMenu;    QToolBar *fileToolBar;    QToolBar *editToolBar;    QAction *newAction;    QAction *openAction;    QAction *saveAction;    QAction *saveAsAction;    QAction *exitAction;    QAction *cutAction;    QAction *copyAction;    QAction *pasteAction;    QAction *deleteAction;    QAction *selectRowAction;    QAction *selectColumnAction;    QAction *selectAllAction;    QAction *findAction;    QAction *goToCellAction;    QAction *recalculateAction;    QAction *sortAction;    QAction *showGridAction;    QAction *autoRecalcAction;    QAction *aboutAction;    QAction *aboutQtAction;};#endif