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

#ifndef QDYNAMICDOCKWIDGET_P_H

#define QDYNAMICDOCKWIDGET_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/qstyleoption.h"

#include "private/qwidget_p.h"

#include "QtGui/qboxlayout.h"

#include "QtGui/qdockwidget.h"

#ifndef QT_NO_DOCKWIDGET

QT_BEGIN_NAMESPACE

class QGridLayout;

class QWidgetResizeHandler;

class QRubberBand;

class QDockWidgetTitleButton;

class QSpacerItem;

class QDockWidgetItem;

class QDockWidgetPrivate : public QWidgetPrivate

{

    Q_DECLARE_PUBLIC(QDockWidget)

    struct DragState {

        QPoint pressPos;

        bool dragging;

        QLayoutItem *widgetItem;

        bool ownWidgetItem;

        bool nca;

        bool ctrlDrag;

    };

public:

    inline QDockWidgetPrivate()

	: QWidgetPrivate(), state(0),

          features(QDockWidget::DockWidgetClosable

                   | QDockWidget::DockWidgetMovable

                   | QDockWidget::DockWidgetFloatable),

          allowedAreas(Qt::AllDockWidgetAreas)

    { }

    void init();

    void _q_toggleView(bool); // private slot

    void _q_toggleTopLevel(); // private slot

    void updateButtons();

    DragState *state;

    QDockWidget::DockWidgetFeatures features;

    Qt::DockWidgetAreas allowedAreas;

    QWidgetResizeHandler *resizer;

#ifndef QT_NO_ACTION

    QAction *toggleViewAction;

#endif

//    QMainWindow *findMainWindow(QWidget *widget) const;

    QRect undockedGeometry;

    QString fixedWindowTitle;

    bool mousePressEvent(QMouseEvent *event);

    bool mouseDoubleClickEvent(QMouseEvent *event);

    bool mouseMoveEvent(QMouseEvent *event);

    bool mouseReleaseEvent(QMouseEvent *event);

    void setWindowState(bool floating, bool unplug = false, const QRect &rect = QRect());

    void nonClientAreaMouseEvent(QMouseEvent *event);

    void initDrag(const QPoint &pos, bool nca);

    void startDrag();

    void endDrag(bool abort = false);

    void moveEvent(QMoveEvent *event);

    void unplug(const QRect &rect);

    void plug(const QRect &rect);

    bool isAnimating() const;

};

class Q_GUI_EXPORT QDockWidgetLayout : public QLayout

{

    Q_OBJECT

public:

    QDockWidgetLayout(QWidget *parent = 0);

    ~QDockWidgetLayout();

    void addItem(QLayoutItem *item);

    QLayoutItem *itemAt(int index) const;

    QLayoutItem *takeAt(int index);

    int count() const;

    QSize maximumSize() const;

    QSize minimumSize() const;

    QSize sizeHint() const;

    QSize sizeFromContent(const QSize &content, bool floating) const;

    void setGeometry(const QRect &r);

    enum Role { Content, CloseButton, FloatButton, TitleBar, RoleCount };

    QWidget *widgetForRole(Role r) const;

    void setWidgetForRole(Role r, QWidget *w);

    QLayoutItem *itemForRole(Role r) const;

    QRect titleArea() const { return _titleArea; }

    int minimumTitleWidth() const;

    int titleHeight() const;

    void updateMaxSize();

    bool nativeWindowDeco() const;

    bool nativeWindowDeco(bool floating) const;

    void setVerticalTitleBar(bool b);

    bool verticalTitleBar;

private:

    QVector<QLayoutItem*> item_list;

    QRect _titleArea;

};

/* The size hints of a QDockWidget will depend on wether it is docked or not.

   This layout item always returns the size hints as if the dock widget was docked. */

class QDockWidgetItem : public QWidgetItem

{

public:

    QDockWidgetItem(QDockWidget *dockWidget);

    QSize minimumSize() const;

    QSize maximumSize() const;

    QSize sizeHint() const;

private:

    inline QLayoutItem *dockWidgetChildItem() const;

    inline QDockWidgetLayout *dockWidgetLayout() const;

};

inline QLayoutItem *QDockWidgetItem::dockWidgetChildItem() const

{

    if (QDockWidgetLayout *layout = dockWidgetLayout())

        return layout->itemForRole(QDockWidgetLayout::Content);

    return 0;

}

inline QDockWidgetLayout *QDockWidgetItem::dockWidgetLayout() const

{

    QWidget *w = const_cast<QDockWidgetItem*>(this)->widget();

    if (w != 0)

        return qobject_cast<QDockWidgetLayout*>(w->layout());

    return 0;

}

QT_END_NAMESPACE

#endif // QT_NO_DOCKWIDGET

#endif // QDYNAMICDOCKWIDGET_P_H