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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtGui module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the Technology Preview License Agreement accompanying
-** this package.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#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>
-#include <private/qapplication_p.h>
-
-QT_BEGIN_NAMESPACE
-
-class Q_GUI_EXPORT QGraphicsViewPrivate : public QAbstractScrollAreaPrivate
-{
- Q_DECLARE_PUBLIC(QGraphicsView)
-public:
- QGraphicsViewPrivate();
-
- void recalculateContentSize();
- void centerView(QGraphicsView::ViewportAnchor anchor);
-
- QPainter::RenderHints renderHints;
-
- QGraphicsView::DragMode dragMode;
-
- quint32 sceneInteractionAllowed : 1;
- quint32 hasSceneRect : 1;
- quint32 connectedToScene : 1;
- quint32 useLastMouseEvent : 1;
- quint32 identityMatrix : 1;
- quint32 dirtyScroll : 1;
- quint32 accelerateScrolling : 1;
- quint32 keepLastCenterPoint : 1;
- quint32 transforming : 1;
- quint32 handScrolling : 1;
- quint32 mustAllocateStyleOptions : 1;
- quint32 mustResizeBackgroundPixmap : 1;
- quint32 fullUpdatePending : 1;
- quint32 hasUpdateClip : 1;
- quint32 padding : 18;
-
- QRectF sceneRect;
- void updateLastCenterPoint();
-
- qint64 horizontalScroll() const;
- qint64 verticalScroll() const;
-
- QRectF mapRectToScene(const QRect &rect) const;
- QRectF mapRectFromScene(const QRectF &rect) const;
-
- QRect updateClip;
- 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()
- {
-#ifdef Q_WS_MAC
- // QWidget::update() works slightly different on the Mac without the raster engine;
- // it's not part of our backing store so it needs special threatment.
- if (QApplicationPrivate::graphics_system_name != QLatin1String("raster")) {
- // 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());
- } else
-#endif // !Q_WS_MAC
- {
- if (qt_widget_private(viewport)->paintOnScreen())
- QCoreApplication::sendPostedEvents(viewport, QEvent::UpdateRequest);
- else
- QCoreApplication::sendPostedEvents(viewport->window(), QEvent::UpdateRequest);
- }
- }
-
- void setUpdateClip(QGraphicsItem *);
-
- inline bool updateRectF(const QRectF &rect)
- {
- if (rect.isEmpty())
- return false;
- if (optimizationFlags & QGraphicsView::DontAdjustForAntialiasing)
- return updateRect(rect.toAlignedRect().adjusted(-1, -1, 1, 1));
- return updateRect(rect.toAlignedRect().adjusted(-2, -2, 2, 2));
- }
-
- bool updateRect(const QRect &rect);
- bool updateRegion(const QRectF &rect, const QTransform &xform);
- 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
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