1 | // Copyright (C) 2023 The Qt Company Ltd. |
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 QCMYK_P_H |
5 | #define QCMYK_P_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. It exists purely as an |
12 | // implementation detail. This header file may change from version to |
13 | // version without notice, or even be removed. |
14 | // |
15 | // We mean it. |
16 | // |
17 | |
18 | #include <QtGui/private/qtguiglobal_p.h> |
19 | #include <QtGui/qcolor.h> |
20 | |
21 | QT_BEGIN_NAMESPACE |
22 | |
23 | class QCmyk32 |
24 | { |
25 | private: |
26 | uint m_cmyk = 0; |
27 | friend constexpr bool comparesEqual(const QCmyk32 &lhs, const QCmyk32 &rhs) noexcept |
28 | { |
29 | return lhs.m_cmyk == rhs.m_cmyk; |
30 | } |
31 | |
32 | public: |
33 | QCmyk32() = default; |
34 | |
35 | constexpr QCmyk32(int cyan, int magenta, int yellow, int black) : |
36 | #if QT_BYTE_ORDER == Q_BIG_ENDIAN |
37 | m_cmyk(cyan << 24 | magenta << 16 | yellow << 8 | black) |
38 | #else |
39 | m_cmyk(cyan | magenta << 8 | yellow << 16 | black << 24) |
40 | #endif |
41 | { |
42 | } |
43 | |
44 | #if QT_BYTE_ORDER == Q_BIG_ENDIAN |
45 | constexpr int cyan() const noexcept { return (m_cmyk >> 24) & 0xff; } |
46 | constexpr int magenta() const noexcept { return (m_cmyk >> 16) & 0xff; } |
47 | constexpr int yellow() const noexcept { return (m_cmyk >> 8) & 0xff; } |
48 | constexpr int black() const noexcept { return (m_cmyk ) & 0xff; } |
49 | #else |
50 | constexpr int cyan() const noexcept { return (m_cmyk ) & 0xff; } |
51 | constexpr int magenta() const noexcept { return (m_cmyk >> 8) & 0xff; } |
52 | constexpr int yellow() const noexcept { return (m_cmyk >> 16) & 0xff; } |
53 | constexpr int black() const noexcept { return (m_cmyk >> 24) & 0xff; } |
54 | #endif |
55 | |
56 | QColor toColor() const noexcept |
57 | { |
58 | return QColor::fromCmyk(c: cyan(), m: magenta(), y: yellow(), k: black()); |
59 | } |
60 | |
61 | constexpr uint toUint() const noexcept |
62 | { |
63 | return m_cmyk; |
64 | } |
65 | |
66 | constexpr static QCmyk32 fromCmyk32(uint cmyk) noexcept |
67 | { |
68 | QCmyk32 result; |
69 | result.m_cmyk = cmyk; |
70 | return result; |
71 | } |
72 | |
73 | static QCmyk32 fromRgba(QRgb rgba) noexcept |
74 | { |
75 | const QColor c = QColor(rgba).toCmyk(); |
76 | return QCmyk32(c.cyan(), c.magenta(), c.yellow(), c.black()); |
77 | } |
78 | |
79 | static QCmyk32 fromColor(const QColor &color) noexcept |
80 | { |
81 | QColor c = color.toCmyk(); |
82 | return QCmyk32(c.cyan(), c.magenta(), c.yellow(), c.black()); |
83 | } |
84 | |
85 | Q_DECLARE_EQUALITY_COMPARABLE_LITERAL_TYPE(QCmyk32) |
86 | }; |
87 | |
88 | static_assert(sizeof(QCmyk32) == sizeof(int)); |
89 | static_assert(alignof(QCmyk32) == alignof(int)); |
90 | static_assert(std::is_standard_layout_v<QCmyk32>); |
91 | |
92 | QT_END_NAMESPACE |
93 | |
94 | #endif // QCMYK_P_H |
95 | |