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****************************************************************************/

#ifndef QTOOLBARAREALAYOUT_P_H

#define QTOOLBARAREALAYOUT_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 <QList>

#include <QSize>

#include <QRect>

QT_BEGIN_NAMESPACE

static inline int pick(Qt::Orientation o, const QPoint &pos)

{ return o == Qt::Horizontal ? pos.x() : pos.y(); }

static inline int pick(Qt::Orientation o, const QSize &size)

{ return o == Qt::Horizontal ? size.width() : size.height(); }

static inline int &rpick(Qt::Orientation o, QPoint &pos)

{ return o == Qt::Horizontal ? pos.rx() : pos.ry(); }

static inline int &rpick(Qt::Orientation o, QSize &size)

{ return o == Qt::Horizontal ? size.rwidth() : size.rheight(); }

static inline QSizePolicy::Policy pick(Qt::Orientation o, const QSizePolicy &policy)

{ return o == Qt::Horizontal ? policy.horizontalPolicy() : policy.verticalPolicy(); }

static inline int perp(Qt::Orientation o, const QPoint &pos)

{ return o == Qt::Vertical ? pos.x() : pos.y(); }

static inline int perp(Qt::Orientation o, const QSize &size)

{ return o == Qt::Vertical ? size.width() : size.height(); }

static inline int &rperp(Qt::Orientation o, QPoint &pos)

{ return o == Qt::Vertical ? pos.rx() : pos.ry(); }

static inline int &rperp(Qt::Orientation o, QSize &size)

{ return o == Qt::Vertical ? size.rwidth() : size.rheight(); }

#ifndef QT_NO_TOOLBAR

class QToolBar;

class QLayoutItem;

class QMainWindow;

class QStyleOptionToolBar;

class QToolBarAreaLayoutItem

{

public:

    QToolBarAreaLayoutItem(QLayoutItem *item = 0)

        : widgetItem(item), pos(0), size(-1), preferredSize(-1), gap(false) {}

    bool skip() const;

    QSize minimumSize() const;

    QSize sizeHint() const;

    QSize realSizeHint() const;

    void resize(Qt::Orientation o, int newSize)

    {

        newSize = qMax(pick(o, minimumSize()), newSize);

        int sizeh = pick(o, sizeHint());

        if (newSize == sizeh) {

            preferredSize = -1;

            size = sizeh;

        } else {

            preferredSize = newSize;

        }

    }

    void extendSize(Qt::Orientation o, int extent)

    {

        int newSize = qMax(pick(o, minimumSize()), (preferredSize > 0 ? preferredSize : pick(o, sizeHint())) + extent);

        int sizeh = pick(o, sizeHint());

        if (newSize == sizeh) {

            preferredSize = -1;

            size = sizeh;

        } else {

            preferredSize = newSize;

        }

    }

    QLayoutItem *widgetItem;

    int pos;

    int size;

    int preferredSize;

    bool gap;

};

class QToolBarAreaLayoutLine

{

public:

    QToolBarAreaLayoutLine(Qt::Orientation orientation);

    QSize sizeHint() const;

    QSize minimumSize() const;

    void fitLayout();

    bool skip() const;

    QRect rect;

    Qt::Orientation o;

    QList<QToolBarAreaLayoutItem> toolBarItems;

};

class QToolBarAreaLayoutInfo

{

public:

    QToolBarAreaLayoutInfo(QInternal::DockPosition pos = QInternal::TopDock);

    QList<QToolBarAreaLayoutLine> lines;

    QSize sizeHint() const;

    QSize minimumSize() const;

    void fitLayout();

    QLayoutItem *insertToolBar(QToolBar *before, QToolBar *toolBar);

    void insertItem(QToolBar *before, QLayoutItem *item);

    void removeToolBar(QToolBar *toolBar);

    void insertToolBarBreak(QToolBar *before);

    void removeToolBarBreak(QToolBar *before);

    void moveToolBar(QToolBar *toolbar, int pos); 

    QList<int> gapIndex(const QPoint &pos, int *maxDistance) const;

    bool insertGap(const QList<int> &path, QLayoutItem *item);

    void clear();

    QRect itemRect(const QList<int> &path) const;

    int distance(const QPoint &pos) const;

    QRect rect;

    Qt::Orientation o;

    QInternal::DockPosition dockPos;

    bool dirty;

};

class QToolBarAreaLayout

{

public:

    enum { // sentinel values used to validate state data

        ToolBarStateMarker = 0xfe,

        ToolBarStateMarkerEx = 0xfc

    };

    QRect rect;

    const QMainWindow *mainWindow;

    QToolBarAreaLayoutInfo docks[4];

    bool visible;

    QToolBarAreaLayout(const QMainWindow *win);

    QRect fitLayout();

    QSize minimumSize(const QSize &centerMin) const;

    QRect rectHint(const QRect &r) const;

    QSize sizeHint(const QSize &center) const;

    void apply(bool animate);

    QLayoutItem *itemAt(int *x, int index) const;

    QLayoutItem *takeAt(int *x, int index);

    void deleteAllLayoutItems();

    QLayoutItem *insertToolBar(QToolBar *before, QToolBar *toolBar);

    void removeToolBar(QToolBar *toolBar);

    QLayoutItem *addToolBar(QInternal::DockPosition pos, QToolBar *toolBar);

    void insertToolBarBreak(QToolBar *before);

    void removeToolBarBreak(QToolBar *before);

    void addToolBarBreak(QInternal::DockPosition pos);

    void moveToolBar(QToolBar *toolbar, int pos); 

    void insertItem(QInternal::DockPosition pos, QLayoutItem *item);

    void insertItem(QToolBar *before, QLayoutItem *item);

    QInternal::DockPosition findToolBar(QToolBar *toolBar) const;

    bool toolBarBreak(QToolBar *toolBar) const;

    void getStyleOptionInfo(QStyleOptionToolBar *option, QToolBar *toolBar) const;

    QList<int> indexOf(QWidget *toolBar) const;

    QList<int> gapIndex(const QPoint &pos) const;

    QList<int> currentGapIndex() const;

    bool insertGap(const QList<int> &path, QLayoutItem *item);

    void remove(const QList<int> &path);

    void remove(QLayoutItem *item);

    void clear();

    QToolBarAreaLayoutItem &item(const QList<int> &path);

    QRect itemRect(const QList<int> &path) const;

    QLayoutItem *plug(const QList<int> &path);

    QLayoutItem *unplug(const QList<int> &path, QToolBarAreaLayout *other);

    void saveState(QDataStream &stream) const;

    bool restoreState(QDataStream &stream, const QList<QToolBar*> &toolBars, uchar tmarker, bool pre43, bool testing = false);

    bool isEmpty() const;

};

QT_END_NAMESPACE

#endif // QT_NO_TOOLBAR

#endif // QTOOLBARAREALAYOUT_P_H