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| ** Copyright (C) 2015 The Qt Company Ltd. |
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| ** This file is part of the QtWidgets module of the Qt Toolkit. |
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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) |
| |
| #include <QtGui/qevent.h> |
| #include <QtCore/qcoreapplication.h> |
| #include "qgraphicssceneevent.h" |
| #include <QtWidgets/qstyleoption.h> |
| #include <private/qabstractscrollarea_p.h> |
| #include <private/qapplication_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class Q_WIDGETS_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; |
| QPointF lastRubberbandScenePoint; |
| 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; |
| void updateRubberBand(const QMouseEvent *event); |
| bool rubberBanding; |
| Qt::ItemSelectionMode rubberBandSelectionMode; |
| Qt::ItemSelectionOperation rubberBandSelectionOperation; |
| #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_DEAD_CODE_FROM_QT4_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_DEAD_CODE_FROM_QT4_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 |