/****************************************************************************
**
** Definition of TQWidgetStack class
**
** Created : 980306
**
** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of the widgets module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file.  Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/

#ifndef TQWIDGETSTACK_H
#define TQWIDGETSTACK_H

#ifndef QT_H
#include "ntqframe.h"
#include "ntqintdict.h"
#include "ntqptrdict.h"
#endif // QT_H

#ifndef TQT_NO_WIDGETSTACK


class TQWidgetStackPrivate;


class TQ_EXPORT TQWidgetStack: public TQFrame
{
    TQ_OBJECT
public:
    TQWidgetStack( TQWidget* parent=0, const char* name=0 );
    TQWidgetStack( TQWidget* parent, const char* name, WFlags f);

    ~TQWidgetStack();

    int addWidget( TQWidget *, int = -1 );
    void removeWidget( TQWidget * );

    TQSize sizeHint() const;
    TQSize minimumSizeHint() const;
    void show();

    TQWidget * widget( int ) const;
    int id( TQWidget * ) const;

    TQWidget * visibleWidget() const;

    void setFrameRect( const TQRect & );

signals:
    void aboutToShow( int );
    void aboutToShow( TQWidget * );

public slots:
    void raiseWidget( int );
    void raiseWidget( TQWidget * );

protected:
    void frameChanged();
    void resizeEvent( TQResizeEvent * );

    virtual void setChildGeometries();
    void childEvent( TQChildEvent * );

private:
    void init();

    TQWidgetStackPrivate * d;
    TQIntDict<TQWidget> * dict;
    TQPtrDict<TQWidget> * focusWidgets;
    TQWidget * topWidget;
    TQWidget * invisible;

private:	// Disabled copy constructor and operator=
#if defined(TQ_DISABLE_COPY)
    TQWidgetStack( const TQWidgetStack & );
    TQWidgetStack& operator=( const TQWidgetStack & );
#endif
};

#endif // TQT_NO_WIDGETSTACK

#endif // TQWIDGETSTACK_H