/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtWidgets module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #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 #include "qgraphicsview.h" #include #include #include "qgraphicssceneevent.h" #include #include #include QT_REQUIRE_CONFIG(graphicsview); QT_BEGIN_NAMESPACE class Q_WIDGETS_EXPORT QGraphicsViewPrivate : public QAbstractScrollAreaPrivate { Q_DECLARE_PUBLIC(QGraphicsView) public: QGraphicsViewPrivate(); ~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 scene; #if QT_CONFIG(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 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() { #if 0 // Used to be included in Qt4 for 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 { 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 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