| 1 | // Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). |
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QT3DCORE_QNODEID_H |
| 5 | #define QT3DCORE_QNODEID_H |
| 6 | |
| 7 | #include <Qt3DCore/qt3dcore_global.h> |
| 8 | #include <QtCore/QDebug> |
| 9 | #include <QtCore/QHashFunctions> |
| 10 | |
| 11 | QT_BEGIN_NAMESPACE |
| 12 | |
| 13 | namespace Qt3DCore { |
| 14 | |
| 15 | class QNodeId |
| 16 | { |
| 17 | constexpr explicit QNodeId(quint64 i) noexcept |
| 18 | : m_id(i) |
| 19 | {} |
| 20 | public: |
| 21 | constexpr QNodeId() noexcept |
| 22 | : m_id(0) |
| 23 | {} |
| 24 | |
| 25 | Q_3DCORESHARED_EXPORT static QNodeId createId() noexcept; |
| 26 | |
| 27 | constexpr bool isNull() const noexcept |
| 28 | { |
| 29 | return m_id == 0; |
| 30 | } |
| 31 | |
| 32 | constexpr bool operator ==(QNodeId other) const noexcept |
| 33 | { |
| 34 | return other.m_id == m_id; |
| 35 | } |
| 36 | |
| 37 | constexpr bool operator !=(QNodeId other) const noexcept |
| 38 | { |
| 39 | return !operator ==(other); |
| 40 | } |
| 41 | |
| 42 | constexpr bool operator <(QNodeId other) const noexcept |
| 43 | { |
| 44 | return m_id < other.m_id; |
| 45 | } |
| 46 | |
| 47 | constexpr bool operator >(QNodeId other) const noexcept |
| 48 | { |
| 49 | return m_id > other.m_id; |
| 50 | } |
| 51 | |
| 52 | constexpr quint64 id() const noexcept |
| 53 | { |
| 54 | return m_id; |
| 55 | } |
| 56 | |
| 57 | constexpr operator bool() const noexcept |
| 58 | { |
| 59 | return m_id != 0; |
| 60 | } |
| 61 | |
| 62 | private: |
| 63 | quint64 m_id; |
| 64 | }; |
| 65 | QT3D_DECLARE_TYPEINFO(Qt3DCore, QNodeId, Q_PRIMITIVE_TYPE) |
| 66 | |
| 67 | using QNodeIdVector = QList<QNodeId>; |
| 68 | |
| 69 | #ifndef QT_NO_DEBUG_STREAM |
| 70 | Q_3DCORESHARED_EXPORT QDebug operator<<(QDebug d, QNodeId id); |
| 71 | #endif |
| 72 | |
| 73 | //! [nodeid-qhash] |
| 74 | inline constexpr size_t qHash(QNodeId id, size_t seed = 0) noexcept |
| 75 | { |
| 76 | using QT_PREPEND_NAMESPACE(qHash); |
| 77 | return qHash(key: id.id(), seed); |
| 78 | } |
| 79 | |
| 80 | } // Qt3DCore |
| 81 | |
| 82 | QT_END_NAMESPACE |
| 83 | |
| 84 | Q_DECLARE_METATYPE(Qt3DCore::QNodeId) // LCOV_EXCL_LINE |
| 85 | |
| 86 | |
| 87 | #endif // QT3DCORE_QNODEID_H |
| 88 | |