/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtGui module 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** sales department at sales@trolltech.com.**** 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 QDOCKWIDGETLAYOUT_P_H#define QDOCKWIDGETLAYOUT_P_H////  W A R N I N G//  -------------//// This file is not part of the Qt API.  It exists purely as an// implementation detail.  This header file may change from version to// version without notice, or even be removed.//// We mean it.//#include "QtGui/qlayout.h"#include "QtCore/qlist.h"#ifndef QT_NO_DOCKWIDGETclass QDockWidget;class QDockWidgetSeparator;struct QDockWidgetLayoutInfo{    QLayoutItem *item;    int cur_pos;    int cur_size;    int min_size;    int max_size;    uint is_sep     : 1;    uint is_dropped : 1;    uint reserved   : 13;    inline QDockWidgetLayoutInfo(QLayoutItem *i)	: item(i), cur_pos(-1), cur_size(-1), min_size(1), max_size(-1),	  is_sep(0), is_dropped(0), reserved(0)    { }};class QDockWidgetLayout : public QLayout{    Q_OBJECTpublic:    Qt::DockWidgetArea area;    Qt::Orientation orientation;    QList<QDockWidgetLayoutInfo> layout_info;    QList<QDockWidgetLayoutInfo> *save_layout_info;    mutable QSize minSize;    mutable QSize maxSize;    mutable QSize szHint;    QDockWidgetLayout(Qt::DockWidgetArea a, Qt::Orientation o);    ~QDockWidgetLayout();    enum { // sentinel values used to validate state data        Marker = 0xfc,        WidgetMarker = 0xfb    };    void saveState(QDataStream &stream) const;    bool restoreState(QDataStream &stream);    // QLayout interface    void addItem(QLayoutItem *layoutitem);    void setGeometry(const QRect &rect);    QLayoutItem *itemAt(int index) const;    QLayoutItem *takeAt(int index);    int count() const;    QSize sizeHint() const;    QSize minimumSize() const;    QSize maximumSize() const;    void invalidate();    bool isEmpty() const;    QInternal::RelayoutType relayout_type;    void relayout(QInternal::RelayoutType type = QInternal::RelayoutNormal);    void setOrientation(Qt::Orientation o);    QDockWidgetLayoutInfo &insert(int index, QLayoutItem *layoutitem);    void dump();    void saveLayoutInfo();    void resetLayoutInfo();    void discardLayoutInfo();    QPoint constrain(QDockWidgetSeparator *sep, int delta);    struct Location {        int index;        Qt::DockWidgetArea area;    };    Location locate(const QPoint &mouse) const;    QRect place(QDockWidget *dockwidget, const QRect &r, const QPoint &mouse);    void drop(QDockWidget *dockwidget, const QRect &r, const QPoint &mouse);    void extend(QDockWidget *dockwidget, Qt::Orientation direction);    static void split(QDockWidgetLayout *layout,                      QDockWidget *existing,                      QDockWidget *with,                      Qt::DockWidgetArea area);Q_SIGNALS:    void emptied();private Q_SLOTS:    void maybeDelete();};static inline int pick(Qt::Orientation o, const QPoint &p){ return o == Qt::Horizontal ? p.x() : p.y(); }static inline int pick(Qt::Orientation o, const QSize &s){ return o == Qt::Horizontal ? s.width() : s.height(); }static inline int pick_perp(Qt::Orientation o, const QPoint &p){ return o == Qt::Vertical ? p.x() : p.y(); }static inline int pick_perp(Qt::Orientation o, const QSize &s){ return o == Qt::Vertical ? s.width() : s.height(); }#endif // QT_NO_MAINWINDOW#endif // QDOCKWIDGETLAYOUT_P_H