1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/****************************************************************************
**
** Copyright (C) 2009 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 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,
Qt::SortOrder = Qt::AscendingOrder) 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, 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
|
