diff options
Diffstat (limited to 'src/gui/graphicsview/qgraphicsview_p.h')
| -rw-r--r-- | src/gui/graphicsview/qgraphicsview_p.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/src/gui/graphicsview/qgraphicsview_p.h b/src/gui/graphicsview/qgraphicsview_p.h new file mode 100644 index 0000000..2109673 --- /dev/null +++ b/src/gui/graphicsview/qgraphicsview_p.h @@ -0,0 +1,191 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@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 qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp. 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 "qgraphicssceneevent.h" +#include <private/qabstractscrollarea_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; + bool sceneInteractionAllowed; + QRectF sceneRect; + bool hasSceneRect; + void updateLastCenterPoint(); + bool connectedToScene; + + qint64 horizontalScroll() const; + qint64 verticalScroll() const; + + QList<QGraphicsItem *> itemsInArea(const QPainterPath &path, + Qt::ItemSelectionMode mode = Qt::IntersectsItemShape) const; + + QPointF mousePressItemPoint; + QPointF mousePressScenePoint; + QPoint mousePressViewPoint; + QPoint mousePressScreenPoint; + QPointF lastMouseMoveScenePoint; + QPoint lastMouseMoveScreenPoint; + Qt::MouseButton mousePressButton; + QTransform matrix; + bool identityMatrix; + qint64 scrollX, scrollY; + bool dirtyScroll; + void updateScroll(); + + bool accelerateScrolling; + qreal leftIndent; + qreal topIndent; + + // Replaying mouse events + QMouseEvent lastMouseEvent; + bool useLastMouseEvent; + void replayLastMouseEvent(); + void storeMouseEvent(QMouseEvent *event); + void mouseMoveEventHandler(QMouseEvent *event); + + QPointF lastCenterPoint; + bool keepLastCenterPoint; + Qt::Alignment alignment; + bool transforming; + + 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 + bool handScrolling; + int handScrollMotions; + + QGraphicsView::CacheMode cacheMode; + + QVector<QStyleOptionGraphicsItem> styleOptions; + bool mustAllocateStyleOptions; + QStyleOptionGraphicsItem *allocStyleOptionsArray(int numItems); + void freeStyleOptionsArray(QStyleOptionGraphicsItem *array); + + QBrush backgroundBrush; + QBrush foregroundBrush; + QPixmap backgroundPixmap; + bool mustResizeBackgroundPixmap; + 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; + void itemUpdated(QGraphicsItem *item, const QRectF &rect); + bool fullUpdatePending; + QList<QRect> dirtyRects; + QList<QRegion> dirtyRegions; + int dirtyRectCount; + QRect dirtyBoundingRect; + void updateLater(); + bool updatingLater; + void _q_updateLaterSlot(); + void updateAll(); + void updateRect(const QRect &rect); + void updateRegion(const QRegion ®ion); + bool updateSceneSlotReimplementedChecked; + + QList<QGraphicsItem *> findItems(const QRegion &exposedRegion, + const QTransform &worldTransform, + bool *allItems) const; + + void generateStyleOptions(const QList<QGraphicsItem *> &itemList, + QGraphicsItem **itemArray, + QStyleOptionGraphicsItem *styleOptionArray, + const QTransform &worldTransform, + bool allItems, + const QRegion &exposedRegion) const; +}; + +QT_END_NAMESPACE + +#endif // QT_NO_GRAPHICSVIEW + +#endif |