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# spreadsheet.h Example File

demos/spreadsheet/spreadsheet.h

     /****************************************************************************
     **
     ** Copyright (C) 2015 The Qt Company Ltd.
     ** Contact: http://www.qt.io/licensing/
     **
     ** This file is part of the demonstration applications of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** Commercial License Usage
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     ** accordance with the commercial license agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
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     ** GNU Lesser General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU Lesser
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     ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
     ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.GPL included in the
     ** packaging of this file.  Please review the following information to
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     #ifndef SPREADSHEET_H
     #define SPREADSHEET_H

     #include <QMainWindow>

     class QAction;
     class QLabel;
     class QLineEdit;
     class QToolBar;
     class QTableWidgetItem;
     class QTableWidget;

     class SpreadSheet : public QMainWindow
     {
         Q_OBJECT

     public:

         SpreadSheet(int rows, int cols, QWidget *parent = 0);

     public slots:
         void updateStatus(QTableWidgetItem *item);
         void updateColor(QTableWidgetItem *item);
         void updateLineEdit(QTableWidgetItem *item);
         void returnPressed();
         void selectColor();
         void selectFont();
         void clear();
         void showAbout();

         void print();

         void actionSum();
         void actionSubtract();
         void actionAdd();
         void actionMultiply();
         void actionDivide();

     protected:
         void setupContextMenu();
         void setupContents();

         void setupMenuBar();
         void createActions();

         void actionMath_helper(const QString &title, const QString &op);
         bool runInputDialog(const QString &title,
                             const QString &c1Text,
                             const QString &c2Text,
                             const QString &opText,
                             const QString &outText,
                             QString *cell1, QString *cell2, QString *outCell);
     private:
         QToolBar *toolBar;
         QAction *colorAction;
         QAction *fontAction;
         QAction *firstSeparator;
         QAction *cell_sumAction;
         QAction *cell_addAction;
         QAction *cell_subAction;
         QAction *cell_mulAction;
         QAction *cell_divAction;
         QAction *secondSeparator;
         QAction *clearAction;
         QAction *aboutSpreadSheet;
         QAction *exitAction;

         QAction *printAction;

         QLabel *cellLabel;
         QTableWidget *table;
         QLineEdit *formulaInput;

     };

     void decode_pos(const QString &pos, int *row, int *col);
     QString encode_pos(int row, int col);

     #endif // SPREADSHEET_H