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#ifndef QDYNAMICMAINWINDOWLAYOUT_P_H

#define QDYNAMICMAINWINDOWLAYOUT_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 "qmainwindow.h"

#ifndef QT_NO_MAINWINDOW

#include "QtGui/qlayout.h"

#include "QtGui/qtabbar.h"

#include "QtCore/qvector.h"

#include "QtCore/qset.h"

#include "QtCore/qbasictimer.h"

#include "private/qlayoutengine_p.h"

#include "private/qwidgetanimator_p.h"

#include "qdockarealayout_p.h"

#include "qtoolbararealayout_p.h"

//#define Q_DEBUG_MAINWINDOW_LAYOUT

#ifdef Q_DEBUG_MAINWINDOW_LAYOUT

QT_BEGIN_NAMESPACE

class QTextStream;

Q_GUI_EXPORT void qt_dumpLayout(QTextStream &qout, QMainWindow *window);

QT_END_NAMESPACE

#endif // Q_DEBUG_MAINWINDOW_LAYOUT

#ifdef Q_WS_MAC

// Forward defs to make avoid including Carbon.h (faster compile you know ;).

struct OpaqueHIObjectRef;

typedef struct OpaqueHIObjectRef*       HIObjectRef;

typedef HIObjectRef                     HIToolbarItemRef;

typedef const void * CFTypeRef;

typedef const struct __CFString * CFStringRef;

#endif

QT_BEGIN_NAMESPACE

class QToolBar;

class QRubberBand;

/* This data structure represents the state of all the tool-bars and dock-widgets. It's value based

   so it can be easilly copied into a temporary variable. All operations are performed without moving

   any widgets. Only when we are sure we have the desired state, we call apply(), which moves the

   widgets.

*/

class QMainWindowLayoutState

{

public:

    QRect rect;

    QMainWindow *mainWindow;

    QMainWindowLayoutState(QMainWindow *win);

#ifndef QT_NO_TOOLBAR

    QToolBarAreaLayout toolBarAreaLayout;

#endif

#ifndef QT_NO_DOCKWIDGET

    QDockAreaLayout dockAreaLayout;

#else

    QLayoutItem *centralWidgetItem;

    QRect centralWidgetRect;

#endif

    void apply(bool animated);

    void deleteAllLayoutItems();

    void deleteCentralWidgetItem();

    QSize sizeHint() const;

    QSize minimumSize() const;

    void fitLayout();

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

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

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

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

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

    QRect gapRect(const QList<int> &path) const; // ### get rid of this, use itemRect() instead

    bool contains(QWidget *widget) const;

    void setCentralWidget(QWidget *widget);

    QWidget *centralWidget() const;

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

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

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

    void remove(QLayoutItem *item);

    void clear();

    bool isValid() const;

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

    QLayoutItem *unplug(const QList<int> &path, QMainWindowLayoutState *savedState = 0);

    void saveState(QDataStream &stream) const;

    bool checkFormat(QDataStream &stream, bool pre43);

    bool restoreState(QDataStream &stream, const QMainWindowLayoutState &oldState);

};

class Q_AUTOTEST_EXPORT QMainWindowLayout : public QLayout

{

    Q_OBJECT

public:

    QMainWindowLayoutState layoutState, savedState;

    explicit QMainWindowLayout(QMainWindow *mainwindow);

    ~QMainWindowLayout();

    QMainWindow::DockOptions dockOptions;

    void setDockOptions(QMainWindow::DockOptions opts);

    bool usesHIToolBar(QToolBar *toolbar) const;

    void timerEvent(QTimerEvent *e);

    // status bar

    QLayoutItem *statusbar;

#ifndef QT_NO_STATUSBAR

    QStatusBar *statusBar() const;

    void setStatusBar(QStatusBar *sb);

#endif

    // central widget

    QWidget *centralWidget() const;

    void setCentralWidget(QWidget *cw);

    // toolbars

#ifndef QT_NO_TOOLBAR

    void addToolBarBreak(Qt::ToolBarArea area);

    void insertToolBarBreak(QToolBar *before);

    void removeToolBarBreak(QToolBar *before);

    void addToolBar(Qt::ToolBarArea area, QToolBar *toolbar, bool needAddChildWidget = true);

    void insertToolBar(QToolBar *before, QToolBar *toolbar);

    Qt::ToolBarArea toolBarArea(QToolBar *toolbar) const;

    bool toolBarBreak(QToolBar *toolBar) const;

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

    void removeToolBar(QToolBar *toolbar);

    void toggleToolBarsVisible();

    void moveToolBar(QToolBar *toolbar, int pos);

#endif

    // dock widgets

#ifndef QT_NO_DOCKWIDGET

    void setCorner(Qt::Corner corner, Qt::DockWidgetArea area);

    Qt::DockWidgetArea corner(Qt::Corner corner) const;

    void addDockWidget(Qt::DockWidgetArea area,

                       QDockWidget *dockwidget,

                       Qt::Orientation orientation);

    void splitDockWidget(QDockWidget *after,

                         QDockWidget *dockwidget,

                         Qt::Orientation orientation);

    void tabifyDockWidget(QDockWidget *first, QDockWidget *second);

    Qt::DockWidgetArea dockWidgetArea(QDockWidget *dockwidget) const;

    void raise(QDockWidget *widget);

    void setVerticalTabsEnabled(bool enabled);

    bool restoreDockWidget(QDockWidget *dockwidget);

#ifndef QT_NO_TABBAR

    bool _documentMode;

    bool documentMode() const;

    void setDocumentMode(bool enabled);

    QTabBar *getTabBar();

    QSet<QTabBar*> usedTabBars;

    QList<QTabBar*> unusedTabBars;

    bool verticalTabsEnabled;

    QWidget *getSeparatorWidget();

    QSet<QWidget*> usedSeparatorWidgets;

    QList<QWidget*> unusedSeparatorWidgets;

    int sep; // separator extent

#ifndef QT_NO_TABWIDGET

    QTabWidget::TabPosition tabPositions[4];

    QTabWidget::TabShape _tabShape;

    QTabWidget::TabShape tabShape() const;

    void setTabShape(QTabWidget::TabShape tabShape);

    QTabWidget::TabPosition tabPosition(Qt::DockWidgetArea area) const;

    void setTabPosition(Qt::DockWidgetAreas areas, QTabWidget::TabPosition tabPosition);

#endif // QT_NO_TABWIDGET

#endif // QT_NO_TABBAR

    // separators

    QList<int> movingSeparator;

    QPoint movingSeparatorOrigin, movingSeparatorPos;

    QBasicTimer separatorMoveTimer;

    bool startSeparatorMove(const QPoint &pos);

    bool separatorMove(const QPoint &pos);

    bool endSeparatorMove(const QPoint &pos);

    void keepSize(QDockWidget *w);

#endif // QT_NO_DOCKWIDGET

    // save/restore

    enum { // sentinel values used to validate state data

        VersionMarker = 0xff

    };

    void saveState(QDataStream &stream) const;

    bool restoreState(QDataStream &stream);

    // QLayout interface

    void addItem(QLayoutItem *item);

    void setGeometry(const QRect &r);

    QLayoutItem *itemAt(int index) const;

    QLayoutItem *takeAt(int index);

    int count() const;

    QSize sizeHint() const;

    QSize minimumSize() const;

    mutable QSize szHint;

    mutable QSize minSize;

    void invalidate();

    // animations

    QWidgetAnimator widgetAnimator;

    QList<int> currentGapPos;

    QRect currentGapRect;

    QWidget *pluggingWidget;

#ifndef QT_NO_RUBBERBAND

    QRubberBand *gapIndicator;

#endif

    QList<int> hover(QLayoutItem *widgetItem, const QPoint &mousePos);

    bool plug(QLayoutItem *widgetItem);

    QLayoutItem *unplug(QWidget *widget);

    void revert(QLayoutItem *widgetItem);

    void updateGapIndicator();

    void paintDropIndicator(QPainter *p, QWidget *widget, const QRegion &clip);

    void applyState(QMainWindowLayoutState &newState, bool animate = true);

    void restore(bool keepSavedState = false);

    void updateHIToolBarStatus();

    void animationFinished(QWidget *widget);

private Q_SLOTS:

#ifndef QT_NO_DOCKWIDGET

#ifndef QT_NO_TABBAR

    void tabChanged();

#endif

#endif

private:

#ifndef QT_NO_TABBAR

    void updateTabBarShapes();

#endif

#ifdef Q_WS_MAC

#  ifndef QT_MAC_USE_COCOA

    static OSStatus qtmacToolbarDelegate(EventHandlerCallRef, EventRef , void *);

    static OSStatus qtoolbarInHIToolbarHandler(EventHandlerCallRef inCallRef, EventRef event,

                                               void *data);

    static void qtMacHIToolbarRegisterQToolBarInHIToolborItemClass();

    static HIToolbarItemRef CreateToolbarItemForIdentifier(CFStringRef identifier, CFTypeRef data);

    static HIToolbarItemRef createQToolBarInHIToolbarItem(QToolBar *toolbar,

                                                          QMainWindowLayout *layout);

#  endif

public:

    struct ToolBarSaveState {

        ToolBarSaveState() : movable(false) { }

        ToolBarSaveState(bool newMovable, const QSize &newMax)

        : movable(newMovable), maximumSize(newMax) { }

        bool movable;

        QSize maximumSize;

    };

    QList<QToolBar *> qtoolbarsInUnifiedToolbarList;

    QList<void *> toolbarItemsCopy;

    QHash<void *, QToolBar *> unifiedToolbarHash;

    QHash<QToolBar *, ToolBarSaveState> toolbarSaveState;

    QHash<QString, QToolBar *> cocoaItemIDToToolbarHash;

    void insertIntoMacToolbar(QToolBar *before, QToolBar *after);

    void removeFromMacToolbar(QToolBar *toolbar);

    void cleanUpMacToolbarItems();

    void fixSizeInUnifiedToolbar(QToolBar *tb) const;

    bool useHIToolBar;

    void syncUnifiedToolbarVisibility();

    bool blockVisiblityCheck;

#endif

};

QT_END_NAMESPACE

#endif // QT_NO_MAINWINDOW

#endif // QDYNAMICMAINWINDOWLAYOUT_P_H