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
|
/****************************************************************************
**
** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the Itemviews NG project on Trolltech Labs.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 or 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 GNU
** General Public Licensing requirements will be met:
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** 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.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#ifndef QTGRAPHICSLISTVIEW_P_H
#define QTGRAPHICSLISTVIEW_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qgraphicsitem.h>
#include <qstyleoption.h>
#include <qtimer.h>
#include <qhash.h>
#define CACHING_ENABLED 1
QT_BEGIN_NAMESPACE
class QtGraphicsListViewItemPrivate
{
Q_DECLARE_PUBLIC(QtGraphicsListViewItem)
public:
int index;
QtGraphicsListView *view;
mutable QStyleOptionViewItemV4 option;
QtGraphicsListViewItem *q_ptr;
};
class QtGraphicsTransform : public QGraphicsItem
{
public:
QtGraphicsTransform(QGraphicsItem *parent) : QGraphicsItem(parent)
{ setFlag(QGraphicsItem::ItemHasNoContents); }
~QtGraphicsTransform() {}
void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) {}
QRectF boundingRect() const { return QRectF(pos(), QSizeF()); }
};
// QtGraphicsListViewPrivate
class QtGraphicsListViewPrivate //: public QGraphicsWidgetPrivate
{
Q_DECLARE_PUBLIC(QtGraphicsListView)
public:
QtGraphicsListViewPrivate();
virtual ~QtGraphicsListViewPrivate();
void _q_controllerDestroyed();
void _q_modelDestroyed();
void _q_selectionsDestroyed();
void _q_itemsChanged(int index, int count, const QList<QByteArray> &roles);
void _q_itemsInserted(int index, int count);
void _q_itemsRemoved(int index, int count);
void _q_reset();
void _q_selectionsChanged(const QtListSelectionChange &change);
void _q_currentChanged(int current, int previous);
void updateHighlightGeometry();
void checkCache(int index, int count);
QVariant cachedData(int index, const QByteArray &role) const;
bool isSelected(int index) const;
int currentItem() const;
// used by updateLayout
QSizeF itemSize(int index) const;
QtGraphicsListView *q_ptr;
QtListController *controller;
QtListModelInterface *model;
QtListSelectionManager *selectionManager;
Qt::Orientation orientation;
Qt::TextElideMode textElideMode;
QGraphicsObject *highlight;
int firstIndex;
qreal offset;
#if CACHING_ENABLED
mutable int cachedIndexOffset;
mutable qreal cachedCoordinateOffset;
#endif
mutable QHash<QByteArray, QVariant> cachedDataHash;
mutable int cachedDataIndex;
QList<QPair<int, QGraphicsObject*> > items;
QtGraphicsListViewItemCreatorBase *creator;
QBasicTimer layoutTimer;
};
QT_END_NAMESPACE
#endif//QTGRAPHICSLISTVIEW_P_H
|
