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mdichild.h Example File
mainwindows/mdi/mdichild.h

 /****************************************************************************
 **
 ** Copyright (C) 2005-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
 **
 ** Licensees holding a valid Qt License Agreement may use this file in
 ** accordance with the rights, responsibilities and obligations
 ** contained therein.  Please consult your licensing agreement or
 ** contact [email protected] if any conditions of this licensing
 ** agreement are not clear to you.
 **
 ** Further information about Qt licensing is available at:
 ** http://trolltech.com/products/appdev/licensing.
 **
 ** 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