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# popupwidget.h Example File
demos/spreadsheet/popupwidget.h

        /****************************************************************************
        **
        ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
        **
        ** This file is part of the demonstration applications of the Qt Toolkit.
        **
        ** Licensees holding valid Qt Preview licenses may use this file in
        ** accordance with the Qt Preview License Agreement provided with the
        ** Software.
        **
        ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
        ** information about Qt Commercial License Agreements.
        **
        ** Contact info@trolltech.com if any conditions of this licensing are
        ** not clear to you.
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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 POPUPWIDGET_H
        #define POPUPWIDGET_H

        #include <QWidget>
        #include <QEventLoop>

        //The class to show a widget as popup.
        class PopupWidget: public QWidget
        {
            Q_OBJECT
        public:
            PopupWidget(QWidget *parent = 0);
            ~PopupWidget();
            void setWidget(QWidget * widget);
            QWidget *widget() const;
            //position of the popup has to be in the screen coordinates.
            int exec(const QRect& rect);

        public slots:
            void closePopup();

        protected:
            void hideEvent(QHideEvent * event);

        private:
            QWidget *childWidget;
            QEventLoop *eventLoop;
            int returnCode;
        };

        #endif