mdichild.h Example File
mainwindows/mdi/mdichild.h
    /****************************************************************************
    **
    ** Copyright (C) 2005-2006 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation of the Qt Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License version 2.0 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 ensure GNU
    ** General Public Licensing requirements will be met:
    ** http://www.trolltech.com/products/qt/opensource.html
    **
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://www.trolltech.com/products/qt/licensing.html or contact the
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    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/
    #ifndef MDICHILD_H
    #define MDICHILD_H
    #include <QTextEdit>
    class MdiChild : public QTextEdit
    {
        Q_OBJECT
    public:
        MdiChild();
        void newFile();
        bool loadFile(const QString &fileName);
        bool save();
        bool saveAs();
        bool saveFile(const QString &fileName);
        QString userFriendlyCurrentFile();
        QString currentFile() { return curFile; }
    protected:
        void closeEvent(QCloseEvent *event);
    private slots:
        void documentWasModified();
    private:
        bool maybeSave();
        void setCurrentFile(const QString &fileName);
        QString strippedName(const QString &fullFileName);
        QString curFile;
        bool isUntitled;
    };
    #endif