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#ifndef QGRAPHICSVIEW_P_H

#define QGRAPHICSVIEW_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of other Qt classes.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "qgraphicsview.h"

#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW

#include <QtGui/qevent.h>

#include <QtCore/qcoreapplication.h>

#include "qgraphicssceneevent.h"

#include <QtGui/qstyleoption.h>

#include <private/qabstractscrollarea_p.h>

QT_BEGIN_NAMESPACE

{

    Q_DECLARE_PUBLIC(QGraphicsView)

public:

    QGraphicsViewPrivate();

    void recalculateContentSize();

    void centerView(QGraphicsView::ViewportAnchor anchor);

    QPainter::RenderHints renderHints;

    QGraphicsView::DragMode dragMode;

    QRectF sceneRect;

    void updateLastCenterPoint();

    qint64 horizontalScroll() const;

    qint64 verticalScroll() const;

    QRectF mapRectToScene(const QRect &rect) const;

    QRectF mapRectFromScene(const QRectF &rect) const;

    QPointF mousePressItemPoint;

    QPointF mousePressScenePoint;

    QPoint mousePressViewPoint;

    QPoint mousePressScreenPoint;

    QPointF lastMouseMoveScenePoint;

    QPoint lastMouseMoveScreenPoint;

    QPoint dirtyScrollOffset;

    Qt::MouseButton mousePressButton;

    QTransform matrix;

    qint64 scrollX, scrollY;

    void updateScroll();

    qreal leftIndent;

    qreal topIndent;

    // Replaying mouse events

    QMouseEvent lastMouseEvent;

    void replayLastMouseEvent();

    void storeMouseEvent(QMouseEvent *event);

    void mouseMoveEventHandler(QMouseEvent *event);

    QPointF lastCenterPoint;

    Qt::Alignment alignment;

    QGraphicsView::ViewportAnchor transformationAnchor;

    QGraphicsView::ViewportAnchor resizeAnchor;

    QGraphicsView::ViewportUpdateMode viewportUpdateMode;

    QGraphicsView::OptimizationFlags optimizationFlags;

    QPointer<QGraphicsScene> scene;

#ifndef QT_NO_RUBBERBAND

    QRect rubberBandRect;

    QRegion rubberBandRegion(const QWidget *widget, const QRect &rect) const;

    bool rubberBanding;

    Qt::ItemSelectionMode rubberBandSelectionMode;

#endif

    int handScrollMotions;

    QGraphicsView::CacheMode cacheMode;

    QVector<QStyleOptionGraphicsItem> styleOptions;

    QStyleOptionGraphicsItem *allocStyleOptionsArray(int numItems);

    void freeStyleOptionsArray(QStyleOptionGraphicsItem *array);

    QBrush backgroundBrush;

    QBrush foregroundBrush;

    QPixmap backgroundPixmap;

    QRegion backgroundPixmapExposed;

#ifndef QT_NO_CURSOR

    QCursor originalCursor;

    bool hasStoredOriginalCursor;

    void _q_setViewportCursor(const QCursor &cursor);

    void _q_unsetViewportCursor();

#endif

    QGraphicsSceneDragDropEvent *lastDragDropEvent;

    void storeDragDropEvent(const QGraphicsSceneDragDropEvent *event);

    void populateSceneDragDropEvent(QGraphicsSceneDragDropEvent *dest,

                                    QDropEvent *source);

    QRect mapToViewRect(const QGraphicsItem *item, const QRectF &rect) const;

    QRegion mapToViewRegion(const QGraphicsItem *item, const QRectF &rect) const;

    QRegion dirtyRegion;

    QRect dirtyBoundingRect;

    void processPendingUpdates();

    inline void updateAll()

    {

        viewport->update();

        fullUpdatePending = true;

        dirtyBoundingRect = QRect();

        dirtyRegion = QRegion();

    }

    inline void dispatchPendingUpdateRequests()

    {

#ifndef Q_WS_MAC

        // QWidget::update() works slightly different on the Mac; it's not part of

        // our backing store so it needs special threatment.

        if (qt_widget_private(viewport)->paintOnScreen())

            QCoreApplication::sendPostedEvents(viewport, QEvent::UpdateRequest);

        else

            QCoreApplication::sendPostedEvents(viewport->window(), QEvent::UpdateRequest);

#else

        // At this point either HIViewSetNeedsDisplay (Carbon) or setNeedsDisplay: YES (Cocoa)

        // is called, which means there's a pending update request. We want to dispatch it

        // now because otherwise graphics view updates would require two

        // round-trips in the event loop before the item is painted.

        extern void qt_mac_dispatchPendingUpdateRequests(QWidget *);

        qt_mac_dispatchPendingUpdateRequests(viewport->window());

#endif

    }

    bool updateRect(const QRect &rect);

    bool updateSceneSlotReimplementedChecked;

    QRegion exposedRegion;

    QList<QGraphicsItem *> findItems(const QRegion &exposedRegion, bool *allItems,

                                     const QTransform &viewTransform) const;

    QPointF mapToScene(const QPointF &point) const;

    QRectF mapToScene(const QRectF &rect) const;

    static void translateTouchEvent(QGraphicsViewPrivate *d, QTouchEvent *touchEvent);

    void updateInputMethodSensitivity();

};

QT_END_NAMESPACE

#endif // QT_NO_GRAPHICSVIEW

#endif