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
|
// Commit: ac5c099cc3c5b8c7eec7a49fdeb8a21037230350
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKVISUALITEMMODEL_P_H
#define QQUICKVISUALITEMMODEL_P_H
#include <QtQuick/qtquickglobal.h>
#include <QtDeclarative/qdeclarative.h>
#include <QtCore/qobject.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QQuickItem;
class QDeclarativeChangeSet;
class Q_QUICK_EXPORT QQuickVisualModel : public QObject
{
Q_OBJECT
Q_PROPERTY(int count READ count NOTIFY countChanged)
public:
virtual ~QQuickVisualModel() {}
enum ReleaseFlag { Referenced = 0x01, Destroyed = 0x02 };
Q_DECLARE_FLAGS(ReleaseFlags, ReleaseFlag)
virtual int count() const = 0;
virtual bool isValid() const = 0;
virtual QQuickItem *item(int index, bool asynchronous=false) = 0;
virtual ReleaseFlags release(QQuickItem *item) = 0;
virtual QString stringValue(int, const QString &) = 0;
virtual void setWatchedRoles(QList<QByteArray> roles) = 0;
virtual int indexOf(QQuickItem *item, QObject *objectContext) const = 0;
Q_SIGNALS:
void countChanged();
void modelUpdated(const QDeclarativeChangeSet &changeSet, bool reset);
void createdItem(int index, QQuickItem *item);
void initItem(int index, QQuickItem *item);
void destroyingItem(QQuickItem *item);
protected:
QQuickVisualModel(QObjectPrivate &dd, QObject *parent = 0)
: QObject(dd, parent) {}
private:
Q_DISABLE_COPY(QQuickVisualModel)
};
class QQuickVisualItemModelAttached;
class QQuickVisualItemModelPrivate;
class Q_QUICK_EXPORT QQuickVisualItemModel : public QQuickVisualModel
{
Q_OBJECT
Q_DECLARE_PRIVATE(QQuickVisualItemModel)
Q_PROPERTY(QDeclarativeListProperty<QQuickItem> children READ children NOTIFY childrenChanged DESIGNABLE false)
Q_CLASSINFO("DefaultProperty", "children")
public:
QQuickVisualItemModel(QObject *parent=0);
virtual ~QQuickVisualItemModel() {}
virtual int count() const;
virtual bool isValid() const;
virtual QQuickItem *item(int index, bool asynchronous=false);
virtual ReleaseFlags release(QQuickItem *item);
virtual QString stringValue(int index, const QString &role);
virtual void setWatchedRoles(QList<QByteArray>) {}
virtual int indexOf(QQuickItem *item, QObject *objectContext) const;
QDeclarativeListProperty<QQuickItem> children();
static QQuickVisualItemModelAttached *qmlAttachedProperties(QObject *obj);
Q_SIGNALS:
void childrenChanged();
private:
Q_DISABLE_COPY(QQuickVisualItemModel)
};
class QQuickVisualItemModelAttached : public QObject
{
Q_OBJECT
public:
QQuickVisualItemModelAttached(QObject *parent)
: QObject(parent), m_index(0) {}
~QQuickVisualItemModelAttached() {
attachedProperties.remove(parent());
}
Q_PROPERTY(int index READ index NOTIFY indexChanged)
int index() const { return m_index; }
void setIndex(int idx) {
if (m_index != idx) {
m_index = idx;
emit indexChanged();
}
}
static QQuickVisualItemModelAttached *properties(QObject *obj) {
QQuickVisualItemModelAttached *rv = attachedProperties.value(obj);
if (!rv) {
rv = new QQuickVisualItemModelAttached(obj);
attachedProperties.insert(obj, rv);
}
return rv;
}
Q_SIGNALS:
void indexChanged();
public:
int m_index;
static QHash<QObject*, QQuickVisualItemModelAttached*> attachedProperties;
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QQuickVisualModel)
QML_DECLARE_TYPE(QQuickVisualItemModel)
QML_DECLARE_TYPEINFO(QQuickVisualItemModel, QML_HAS_ATTACHED_PROPERTIES)
QT_END_HEADER
#endif // QQUICKVISUALITEMMODEL_P_H
|
