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Diffstat (limited to 'src/qml/qml/qqmlpropertyindex_p.h')
-rw-r--r-- | src/qml/qml/qqmlpropertyindex_p.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/qml/qml/qqmlpropertyindex_p.h b/src/qml/qml/qqmlpropertyindex_p.h new file mode 100644 index 0000000000..ebc1828efb --- /dev/null +++ b/src/qml/qml/qqmlpropertyindex_p.h @@ -0,0 +1,133 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQMLPROPERTYINDEX_P_H +#define QQMLPROPERTYINDEX_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 <private/qglobal_p.h> + +QT_BEGIN_NAMESPACE + +class QQmlPropertyIndex +{ + qint32 index; + +public: + QQmlPropertyIndex() + { index = -1; } + + static QQmlPropertyIndex fromEncoded(qint32 encodedIndex) + { + QQmlPropertyIndex idx; + idx.index = encodedIndex; + return idx; + } + + explicit QQmlPropertyIndex(int coreIndex) + { index = encode(coreIndex, -1); } + + explicit QQmlPropertyIndex(int coreIndex, int valueTypeIndex) + : index(encode(coreIndex, valueTypeIndex)) + {} + + bool isValid() const + { return index != -1; } + + int coreIndex() const + { + if (index == -1) + return -1; + return index & 0xffff; + } + + int valueTypeIndex() const + { + if (index == -1) + return -1; + return (index >> 16) - 1; + } + + bool hasValueTypeIndex() const + { + if (index == -1) + return false; + return index >> 16; + } + + qint32 toEncoded() const + { return index; } + + int intValue() const + { return index; } + + bool operator==(const QQmlPropertyIndex &other) const + { return index == other.index; } + + bool operator!=(const QQmlPropertyIndex &other) const + { return !operator==(other); } + +private: + static qint32 encode(int coreIndex, int valueTypeIndex) + { + Q_ASSERT(coreIndex >= -1); + Q_ASSERT(coreIndex <= 0xffff); + Q_ASSERT(valueTypeIndex >= -1); + Q_ASSERT(valueTypeIndex < 0xffff); + + if (coreIndex == -1) + return -1; + else + return coreIndex | ((valueTypeIndex + 1) << 16); + } +}; + +QT_END_NAMESPACE + +#endif // QQMLPROPERTYINDEX_P_H |