1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtQml module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QQMLPROPERTYINDEX_P_H
41#define QQMLPROPERTYINDEX_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <private/qglobal_p.h>
55
56QT_BEGIN_NAMESPACE
57
58class QQmlPropertyIndex
59{
60 qint32 index;
61
62public:
63 QQmlPropertyIndex()
64 { index = -1; }
65
66 static QQmlPropertyIndex fromEncoded(qint32 encodedIndex)
67 {
68 QQmlPropertyIndex idx;
69 idx.index = encodedIndex;
70 return idx;
71 }
72
73 explicit QQmlPropertyIndex(int coreIndex)
74 { index = encode(coreIndex, -1); }
75
76 explicit QQmlPropertyIndex(int coreIndex, int valueTypeIndex)
77 : index(encode(coreIndex, valueTypeIndex))
78 {}
79
80 bool isValid() const
81 { return index != -1; }
82
83 int coreIndex() const
84 {
85 if (index == -1)
86 return -1;
87 return index & 0xffff;
88 }
89
90 int valueTypeIndex() const
91 {
92 if (index == -1)
93 return -1;
94 return (index >> 16) - 1;
95 }
96
97 bool hasValueTypeIndex() const
98 {
99 if (index == -1)
100 return false;
101 return index >> 16;
102 }
103
104 qint32 toEncoded() const
105 { return index; }
106
107 int intValue() const
108 { return index; }
109
110 bool operator==(const QQmlPropertyIndex &other) const
111 { return index == other.index; }
112
113 bool operator!=(const QQmlPropertyIndex &other) const
114 { return !operator==(other); }
115
116private:
117 static qint32 encode(int coreIndex, int valueTypeIndex)
118 {
119 Q_ASSERT(coreIndex >= -1);
120 Q_ASSERT(coreIndex <= 0xffff);
121 Q_ASSERT(valueTypeIndex >= -1);
122 Q_ASSERT(valueTypeIndex < 0xffff);
123
124 if (coreIndex == -1)
125 return -1;
126 else
127 return coreIndex | ((valueTypeIndex + 1) << 16);
128 }
129};
130
131QT_END_NAMESPACE
132
133#endif // QQMLPROPERTYINDEX_P_H
134